Relevant bibliographies by topics / Fluoride Ion Detection

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Fluoride Ion Detection'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 September 2023

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Journal articles on the topic "Fluoride Ion Detection"

1

Liu, Yinhong, Yuhan Wei, Yongshuang Bian, Shengjiao He, Xin Wang, Xin Liu, Chenglei Li, et al. "A 2-(benzo[d]thiazol-2-yl)phenol based on conjugated polymer: Highly selective colorimetric fluorescent chemosensor for F-depending on Si–O bond cleavage reaction." High Performance Polymers 32, no. 3 (July 28, 2019): 344–56. http://dx.doi.org/10.1177/0954008319866003.

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Design and synthesis of highly selective fluorine ion probes become particularly important owing to the specific role of fluorine ion in chemical and biomedical progresses. As a new-type of fluorescent material, conjugated polymers with unique photometric properties have been widely researched by scientists in the field of the fluorescence sensors. In this study, the polymer PBTPV-OSi containing benzothiazole moiety is synthesized via palladium-catalyzed Heck coupling reaction. This polymer not only exhibits good solubility in organic solvents but also shows high selectivity for fluorine ion detection in comparison to other anions. Upon addition of F− to PBTPV-OSi solution, Si–O cleavage of PBTPV-OSi leads to the fluorescence quenching of the polymer in tetrahydrofuran dramatically, and the detection limit is 8 × 10−6 mol/L. Moreover, besides detecting fluorine ion from organic phase, the probe can also effectively detect potassium fluoride from inorganic phase. More importantly, a naked-eye detectable chromogenic and fluorogenic dual response to fluorine ion (F−) can be visibly noted and the detection process of fluorine ion is relatively fast.
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Azua Jamari, Nor Laili, Arne Behrens, Andrea Raab, Eva M. Krupp, and Jörg Feldmann. "Plasma processes to detect fluorine with ICPMS/MS as [M–F]+: an argument for building a negative mode ICPMS/MS." Journal of Analytical Atomic Spectrometry 33, no. 8 (2018): 1304–9. http://dx.doi.org/10.1039/c8ja00050f.

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The paper describes that the 2nd ionisation potential and the difference in bond energy of a metal to fluorine bond and of a metal to oxygen bond are the most important parameters to form a metal fluoride ion for the detection of fluorine in ICPMS/MS.
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3

Jia, Jin Ming, and Bo Li. "Design of Harmful Ion Analyzer in Drinking Water." Applied Mechanics and Materials 421 (September 2013): 808–13. http://dx.doi.org/10.4028/www.scientific.net/amm.421.808.

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This paper describes the design of real-time detection of harmful ions for drinking water, mainly introduces the instrument of automatic liquid injection control mechanism and the signal sampling and processing system design and implementation. The dynamic monitoring analyzer can rapidly detect concentration domestic sewage and drinking water of various ions such as arsenic, fluorine. Test equipment mainly consists of automatic sampling software, signal sampling and processing system, wireless data transmission module. Through the instrument in practical application test of arsenic in drinking water, fluoride ion, the performance index analyzer. The detection results, simple operation, low cost, analyzer of strong pertinence, high detection precision, high degree of automation.
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Duly, Ellie B., Stephen R. Luney, Thomas R. Trinick, James M. Murray, and John E. A. Comer. "Validation of an ion selective electrode system for the analysis of serum fluoride ion." Journal of Automatic Chemistry 17, no. 6 (1995): 219–23. http://dx.doi.org/10.1155/s1463924695000344.

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A high impedance unit was developed for use with a fluoride/pH electrode system for the measurement of serum fluoride. The linearity, accuracy, precision and detection limit of the system is reported. At a pH of 1.55, the system was linear over a range of serum fluoride concentrations up to 100 μmol l-1, with a lower limit of detection of 0.3 μmol l-1. Recoveries at this pH were 94-105% in the range 2.6-100 μmol l-1. Within-run CVs ranged from 4.2% at a level of 2.3 μmol l-1to 1.2% at a level of 55.7 μmol l-1, while day-to-day CVs ranged from 12.8% at a level of 2.2 μmol l-1to 4.6% at a level of 51.7 μmol l-1. The system demonstrated a rapid response time and has the potential for a smaller sample size requirement with alternative electrode shape. Continued development of this unit into an automated fluoride ion selective electrode system is recommended, since the measurement of serial serum fluoride samples is of greatest importance in assessing the impact of new anaesthetic agents on renal function.
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5

Yuan, Xin, Sen Lin Tian, Ming Jiang, Rong Rong Miao, Qian Wang, and Jian Zhou. "Determination of Fluorine in the Atmosphere Surrounded the Yellow Phosphorous Enterprise Using Ion Chromatography." Applied Mechanics and Materials 507 (January 2014): 773–76. http://dx.doi.org/10.4028/www.scientific.net/amm.507.773.

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Ion chromatography (IC) method was applied to detection of fluorine in the atmosphere calm wind conditions at the area around the yellow phosphorus enterprise. The results indicated that the recovery of standard addition of Fluroide is 96.7%~100.6%. It gives a linear response of chromatographic peak height with respect to the fluoride in the range of 1~25 μg/mL, and the coefficient correlations R value is 0.9994. The concentration of Fluorine in the surrounding of yellow phosphorus enterprise ranging from 100~1500 m varies from 0.641~0.070 mg/m3. The relative standard deviation (RSD) of this method is between 2.10%~0.50%. This method is sensitivity and selectivity, low disturbance, and it is considered as a promising method for the detection of Fluorine surrounded yellow phosphorus enterprise.
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6

Appiah-Ntiamoah, Richard, Amutha Chinnappan, and Hern Kim. "A facile method to effectively combine plasmon enhanced fluorescence (PEF) and fluoride-Lewis acid based reactions to detect low concentrations of fluoride in solution." RSC Advances 6, no. 82 (2016): 78918–29. http://dx.doi.org/10.1039/c6ra13504h.

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7

Li, Lihong, Min Zhang, Kaijing Chang, Yu Kang, Guodong Ren, Xiaoyu Hou, Wen Liu, Haojiang Wang, Bin Wang, and Haipeng Diao. "A novel fluorescent off–on probe for the sensitive and selective detection of fluoride ions." RSC Advances 9, no. 55 (2019): 32308–12. http://dx.doi.org/10.1039/c9ra06342k.

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A sensitive and selective fluorescent off–on probe is developed for fluoride ion detection, and its applicability has been demonstrated by determining fluoride ions in real-water samples and toothpaste samples.
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8

Yue, Zizheng, and Wenlin Feng. "Fiber-optic Michelson interferometer based on α-Fe2O3/ZrO2 sensing membrane and its application in trace fluoride-ion detection." Zeitschrift für Naturforschung A 77, no. 3 (November 26, 2021): 269–78. http://dx.doi.org/10.1515/zna-2021-0278.

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Abstract In this work, a fiber-optic fluoride-ion-detection Michelson interferometer based on the thin-core fiber (TCF) and no-core fiber (NCF) coated with α-Fe2O3/ZrO2 sensing film is proposed and presented. The single-mode fiber (SMF) is spliced with the TCF and NCF in turn, and a waist-enlarged taper is spliced between them. Then, a silver film is plated on the end face of NCF to enhance the reflection. After the absorption of fluoride ion by the sensing film, the effective refractive index (RI) of the coated cladding will change, which leads to the regular red shift of the interference dip with the increasing fluoride-ion concentration. Thus, the fluoride-ion concentrations can be determined according to the corresponding dip wavelength shifts. The results show that the sensor has an excellent linear response (R 2 = 0.995) with good sensitivity (8.970 nm/ppm) when the fluoride-ion concentration is in the range of 0–1.5 ppm. The response time is about 15 s. The sensor has the advantage of good selectivity, good temperature and pH stabilities, and can be applied to detect fluoride ion effectively.
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9

Lefler, J. E., and M. M. Ivey. "Ion Chromatography Detection of Fluoride in Calcium Carbonate." Journal of Chromatographic Science 49, no. 8 (September 1, 2011): 582–88. http://dx.doi.org/10.1093/chrsci/49.8.582.

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10

Zhou, Ying, Jun Feng Zhang, and Juyoung Yoon. "Fluorescence and Colorimetric Chemosensors for Fluoride-Ion Detection." Chemical Reviews 114, no. 10 (March 25, 2014): 5511–71. http://dx.doi.org/10.1021/cr400352m.

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Dissertations / Theses on the topic "Fluoride Ion Detection"

1

Aboubakr, Hecham. "Synthèse et caractérisation de semi-conducteurs organiques pour des applications optoelectroniques et capteurs." Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM4070.

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Le travail rapporté dans ce mémoire de thèse concerne la synthèse et la caractérisation de nouveaux semi-conducteurs organiques basés sur un coeur bithiophène. Ce travail s'inscrit dans le prolongement de précédents travaux réalisés au laboratoire portant sur des dérivés du type distyryl-oligothiophènes. Au cours de ce travail, plusieurs voies de synthèse ont été développées afin de fonctionnaliser un coeur bithiophène, rigide ou non, avec différents groupements fonctionnels, principalement pour trois types d'applications : (i) la réalisation de transistors à base de couche mince organique (OFETs), (ii) l'élaboration de cellules solaires à partir de composés push-pull et (iii) le développement de capteurs. Le premier chapitre est consacré à la fonctionnalisation du benzo-[2,1-b:3,4-b']dithiophène-4,5-dione soit par des groupements mésogéniques soit par des motifs aminostyryles. L'objectif est la possibilité de préparer des OFETs par la voie liquide et de tirer profit des propriétés cristal liquide pour améliorer les performances électriques. Les propriétés cristal liquides ont été décrites, et les transistors réalisés. Malheureusement aucune mobilité de porteur de charge n'a pu être enregistrée. Dans un deuxième temps, des modifications structurales ont été apportées sur certaine des structures synthétisées afin d'améliorer les propriétés recherchées. Toutefois, au moment de la rédaction de ce manuscrit, les OFETs n'étaient pas réalisés. Dans le deuxième chapitre, de nouvelles molécules push-pull de type cruciformes ont été synthétisées dans le but d'évaluer leurs performances en tant que composés organiques actifs dans des dispositifs photovoltaïques
The work reported herein concerns the synthesis and the characterization of new organic semiconductors built around the bithiophene core. It was relied on an extended work carried out previously in our laboratory on distyryloligothiophene derivatives. The main part of this work was dedicated to develop new functionalized organic semi-conductors with the aim to improve their properties for optoelectronic applications, mainly for: i) the realization of transistors with organic thin layer (OFETs), ii) the elaboration of solar cells from push-pull derivatives and iii) the development of sensors. The first chapter is devoted to the functionalization of the benzo-[2,1-b:3,4-b ']bithiophene-4,5-dione core either by mesogenic or aminostyryl groups with the purpose to improve, using liquid crystal properties, the microscopic ordering and the electrical performances of the synthetized organic semiconductors as well as their solution processability. Besides the liquid crystal properties characterization showing interesting behavior, the OFET devices have been made from those semiconductors but unfortunately have led to, as unexpected, poor charge transport properties. Some structural modifications have been done in order to optimize the charge transport characteristics nevertheless their electrical characterization still under progress up to now. In a second part, some push-pull derivatives, having a cruciform-like structure, have been synthetized and characterized in order to use them as an active organic layer in photovoltaic devices. Their optoelectronic properties have been evaluated and reported
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2

Prasad, Karothu Durga. "Exploration of 1,9-Pyrazoloanthrones as a Copious Reserve for Multifarious Chemical and Biological Applications." Thesis, 2014. http://etd.iisc.ac.in/handle/2005/2980.

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Pyrazoloanthrone and its analogues form the central core of the thesis and the work is focused on the evaluation of chemical and biological applications of pyrazoloanthrones. Selective and sensitive detection of biologically, environmentally and industrially important molecular species such as fluoride, cyanide and picric acid by using pyrazoloanthrones as sensors form the first part while the second part deals with selective and specific kinase inhibition by pyrazoloanthrones to moderate inflammation associated disorders like septic shock. All the investigations are based on extensive crystallographic studies of the participating molecules. Chapter 1 provides a brief review on the history and biological importance of 1,9-pyrazoloanthrones. The potential of these molecules as probes in sensor chemistry and protein kinase inhibition is envisaged. A short account of the techniques employed for the investigations along with a preamble is presented. Chapter 2 is divided into two parts. Part A deals with the design of a colorimetric and “turn-on” fluorescent chemosensor based on 1,9-pyrazoloanthrone specifically for cyanide and fluoride ion detection. A remarkable solid state reaction indicated by the development of intense red color occurs when crystals of tetrabutylammonium cyanide/fluoride are brought in physical contact with 1,9¬pyrazoloanthrone resulting in corresponding molecular complexes (Figure 1). X-ray crystal structures of these complexes and also of 1,9-pyrazoloanthrone have been determined and the ion sensing activity has been substantiated on the basis of spectroscopic (absorption, fluorescence and NMR) and structural analyses. The crystal structure of the parent compound exhibits a disorder as a consequence of tautomerism and the disorder gets carried on to the complexes as well with even the cyanide and the fluoride ions showing partial occupancy sites. The presence of the –NH group and associated intramolecular charge transfer upon complex formation is attributed to the extreme sensitivity of 1,9-pyrazoloanthrone for cyanide and fluoride (detection limits of 0.2 ppb and 2 ppb) ions respectively. Figure 1. Development of intense red color during the solid state reaction (shown on left) and the turn on fluorescence behavior (shown to the right) Part B demonstrates the utilization of electron rich N-alkyl substituted pyrazoloanthrones to design sensors for detecting explosive and electron deficient nitro aromatics such as picric acid (PA). The N-alkyl derivative of 1,9-pyrazoloanthrone has been synthesized, characterized by single crystal X-ray diffraction studies and evaluated as a potent sensor for picric acid. NMR and fluorescence lifetime measurements validate that the fluorescence quenching of sensor compound by PA (Figure 2) as due to the formation of excited state charge-transfer complex resulting in dynamic quenching. Figure 2. Fluorescence quenching measurements demonstrating the dynamic quenching in the charge transfer complex. Chapter 3 deals with the biological evaluation of 1,9-pyrazoloanthrone and its alkyl derivatives towards the inhibition of a decisive protein kinase called c-Jun N-terminal Kinase (JNK), an important member of MAP kinase family. JNK controls crucial cellular processes like apoptosis and cell proliferation and is implicated in disorders associated with inflammation such as septic shock, arthritis, inflammatory bowel disease, etc. Therapeutic inhibition of JNK activity by small molecules has proven to be advantageous in the treatment of diseases coupled with derailed inflammation. In this context, it is already established that 1,9-pyrazoloanthrone (SP600125) effectively and selectively inhibits JNK at concentrations beyond 10 M. A series of alkyl isomers of pyrazoloanthrone derivatives have been synthesized to evaluate the structural implications of inhibition and to elevate both selectivity and sensitivity at lower concentrations. The crystal structures of these isomers have been characterized and their utility as inhibitors has been tested for their in vitro inhibitory activity over c-Jun N-terminal kinase (JNK). The minimum inhibitory concentrations required by these molecules to inhibit JNK was found to be lesser as compared to 1,9-pyrazoloanthrone (<5 µM; Figure 3). Critically, it turns out that among the various inhibitors synthesized, the lead candidates SPP1 and SPB1 display specific inhibition of JNK among other LPS activated MAP kinases like ERK1/2 and p38. These results suggest that N-alkyl (propyl and butyl) bearing pyrazoloanthrone scaffolds provide promising therapeutic inhibitors for JNK in regulating inflammation associated disorders. Figure 3. Inhibition of JNK in macrophages by the SPP1 and SPB1 compared to the known SP600125. Inspired by the results reported in the previous chapter, Chapter 4 is devoted to the generation of a library of compounds based on SPP1 and SPB1 with a purpose to design inhibitors of JNK which perform at the lowest possible concentrations and the consequent evaluation of their potential on endotoxin induced septic shock. Severe sepsis or septic shock is one of the rising causes for mortality worldwide representing nearly 10% of intensive care unit admissions. Susceptibility to sepsis is identified to be mediated by innate pattern recognition receptors and responsive signaling pathways of the host. The c-Jun N-terminal Kinase (JNK)-mediated signaling events play critical role in bacterial infection triggered multi-organ failure, cardiac dysfunction and mortality. Figure 4. Two selected molecules for specific inhibition studies of JNK at lower concentrations. It is demonstrated that alkyl and halogen substitution on the periphery of anthrapyrazolone increases the binding potency of the inhibitors specifically towards JNK. Based on the results from both in vitro with macrophages and in vivo with the mouse model of septicemia, the potential role of two selected molecules D1 and D2 (Figure 4) in regulating endotoxin induced inflammation is firmly established. Further, it is demonstrated that hydrophobic and hydrophilic interactions generated by these small molecules effectively block endotoxin-induced inflammatory genes expression in in vitro and septic shock in vivo, in a mouse model, with remarkable efficacies. Altogether, the in vitro as well as the in vivo data clearly potentiates the selective inhibitory capacity of small molecule inhibitors like D1 and D2 which can facilitate the treatment of current inflammatory disorders when used in combination with the available drugs having varied efficacies. The results rationalize the significance of the diversity oriented synthesis of small molecules for selective inhibition of JNK and their potential in the treatment of severe sepsis.
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3

Prasad, Karothu Durga. "Exploration of 1,9-Pyrazoloanthrones as a Copious Reserve for Multifarious Chemical and Biological Applications." Thesis, 2014. http://etd.iisc.ernet.in/handle/2005/2980.

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Abstract:
Pyrazoloanthrone and its analogues form the central core of the thesis and the work is focused on the evaluation of chemical and biological applications of pyrazoloanthrones. Selective and sensitive detection of biologically, environmentally and industrially important molecular species such as fluoride, cyanide and picric acid by using pyrazoloanthrones as sensors form the first part while the second part deals with selective and specific kinase inhibition by pyrazoloanthrones to moderate inflammation associated disorders like septic shock. All the investigations are based on extensive crystallographic studies of the participating molecules. Chapter 1 provides a brief review on the history and biological importance of 1,9-pyrazoloanthrones. The potential of these molecules as probes in sensor chemistry and protein kinase inhibition is envisaged. A short account of the techniques employed for the investigations along with a preamble is presented. Chapter 2 is divided into two parts. Part A deals with the design of a colorimetric and “turn-on” fluorescent chemosensor based on 1,9-pyrazoloanthrone specifically for cyanide and fluoride ion detection. A remarkable solid state reaction indicated by the development of intense red color occurs when crystals of tetrabutylammonium cyanide/fluoride are brought in physical contact with 1,9¬pyrazoloanthrone resulting in corresponding molecular complexes (Figure 1). X-ray crystal structures of these complexes and also of 1,9-pyrazoloanthrone have been determined and the ion sensing activity has been substantiated on the basis of spectroscopic (absorption, fluorescence and NMR) and structural analyses. The crystal structure of the parent compound exhibits a disorder as a consequence of tautomerism and the disorder gets carried on to the complexes as well with even the cyanide and the fluoride ions showing partial occupancy sites. The presence of the –NH group and associated intramolecular charge transfer upon complex formation is attributed to the extreme sensitivity of 1,9-pyrazoloanthrone for cyanide and fluoride (detection limits of 0.2 ppb and 2 ppb) ions respectively. Figure 1. Development of intense red color during the solid state reaction (shown on left) and the turn on fluorescence behavior (shown to the right) Part B demonstrates the utilization of electron rich N-alkyl substituted pyrazoloanthrones to design sensors for detecting explosive and electron deficient nitro aromatics such as picric acid (PA). The N-alkyl derivative of 1,9-pyrazoloanthrone has been synthesized, characterized by single crystal X-ray diffraction studies and evaluated as a potent sensor for picric acid. NMR and fluorescence lifetime measurements validate that the fluorescence quenching of sensor compound by PA (Figure 2) as due to the formation of excited state charge-transfer complex resulting in dynamic quenching. Figure 2. Fluorescence quenching measurements demonstrating the dynamic quenching in the charge transfer complex. Chapter 3 deals with the biological evaluation of 1,9-pyrazoloanthrone and its alkyl derivatives towards the inhibition of a decisive protein kinase called c-Jun N-terminal Kinase (JNK), an important member of MAP kinase family. JNK controls crucial cellular processes like apoptosis and cell proliferation and is implicated in disorders associated with inflammation such as septic shock, arthritis, inflammatory bowel disease, etc. Therapeutic inhibition of JNK activity by small molecules has proven to be advantageous in the treatment of diseases coupled with derailed inflammation. In this context, it is already established that 1,9-pyrazoloanthrone (SP600125) effectively and selectively inhibits JNK at concentrations beyond 10 M. A series of alkyl isomers of pyrazoloanthrone derivatives have been synthesized to evaluate the structural implications of inhibition and to elevate both selectivity and sensitivity at lower concentrations. The crystal structures of these isomers have been characterized and their utility as inhibitors has been tested for their in vitro inhibitory activity over c-Jun N-terminal kinase (JNK). The minimum inhibitory concentrations required by these molecules to inhibit JNK was found to be lesser as compared to 1,9-pyrazoloanthrone (<5 µM; Figure 3). Critically, it turns out that among the various inhibitors synthesized, the lead candidates SPP1 and SPB1 display specific inhibition of JNK among other LPS activated MAP kinases like ERK1/2 and p38. These results suggest that N-alkyl (propyl and butyl) bearing pyrazoloanthrone scaffolds provide promising therapeutic inhibitors for JNK in regulating inflammation associated disorders. Figure 3. Inhibition of JNK in macrophages by the SPP1 and SPB1 compared to the known SP600125. Inspired by the results reported in the previous chapter, Chapter 4 is devoted to the generation of a library of compounds based on SPP1 and SPB1 with a purpose to design inhibitors of JNK which perform at the lowest possible concentrations and the consequent evaluation of their potential on endotoxin induced septic shock. Severe sepsis or septic shock is one of the rising causes for mortality worldwide representing nearly 10% of intensive care unit admissions. Susceptibility to sepsis is identified to be mediated by innate pattern recognition receptors and responsive signaling pathways of the host. The c-Jun N-terminal Kinase (JNK)-mediated signaling events play critical role in bacterial infection triggered multi-organ failure, cardiac dysfunction and mortality. Figure 4. Two selected molecules for specific inhibition studies of JNK at lower concentrations. It is demonstrated that alkyl and halogen substitution on the periphery of anthrapyrazolone increases the binding potency of the inhibitors specifically towards JNK. Based on the results from both in vitro with macrophages and in vivo with the mouse model of septicemia, the potential role of two selected molecules D1 and D2 (Figure 4) in regulating endotoxin induced inflammation is firmly established. Further, it is demonstrated that hydrophobic and hydrophilic interactions generated by these small molecules effectively block endotoxin-induced inflammatory genes expression in in vitro and septic shock in vivo, in a mouse model, with remarkable efficacies. Altogether, the in vitro as well as the in vivo data clearly potentiates the selective inhibitory capacity of small molecule inhibitors like D1 and D2 which can facilitate the treatment of current inflammatory disorders when used in combination with the available drugs having varied efficacies. The results rationalize the significance of the diversity oriented synthesis of small molecules for selective inhibition of JNK and their potential in the treatment of severe sepsis.
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4

Liao, Pei Wen, and 廖珮妏. "Potassium Ion Sensing Improvements by Fluorine Doping and Organic Ionophore for Inflammasome Cell Detection." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/94015063125535123325.

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碩士
長庚大學
電子工程學系
100
Inflammasomes are wellknown as the key regulators of the innate immune response triggered by tissue damage or other microbial stimulator, and the activity of these multi-protein complexes has been linked to common autoinflammatory . Inflammasomes activate the proinflammatory cytokines interleukin IL-1β. In addition, potassium efflux has been linked to the activation of inflammasomes. In this research, a novel method was proposed to detect the inflammasome activation from extracellular potassium ion concentration. The sensor platform was designed as the electrolyte insulator semiconductor (EIS) structure with fluorinated HfO2 sensing membrane. The potassium (K+) sensitivity of HfO2-EIS structure is 2.23 mV/pK in the concentration between 10-5 M and 1 M. For the samples with fluorine (F19+) ion implantation, the pK sensitivity can be effectively improved to 75.58mV/pK. The variation of K+ concentration under treatment with the nigericin was 65.92 mV. It takes the advantage of directly monitoring the alteration of K+ as the measurement indicator of inflammasome activation.
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Books on the topic "Fluoride Ion Detection"

1

Schwitter, Juerg, and Jens Bremerich. Cardiac magnetic resonance in the intensive and cardiac care unit. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199687039.003.0023.

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Current applications of cardiac magnetic resonance offer a wide spectrum of indications in the setting of acute cardiac care. In particular, cardiac magnetic resonance is helpful for the differential diagnosis of chest pain by the detection of ischaemia, myocardial stunning, myocarditis, and pericarditis. Also, Takotsubo cardiomyopathy and acute aortic diseases can be evaluated by cardiac magnetic resonance and are important differential diagnoses in patients with acute chest pain. In patients with restricted windows for echocardiography, according to guidelines, cardiac magnetic resonance is the method of choice to evaluate complications of an acute myocardial infarction. In an acute myocardial infarction, cardiac magnetic resonance allows for a unique characterization of myocardial damage by quantifying necrosis, microvascular obstruction, oedema (i.e. area at risk), and haemorrhage. These features will help us to understand better the pathophysiological events during infarction and will also allow us to assess new treatment strategies in acute myocardial infarction. To which extent the information on tissue damage will guide patient management is not yet clear, and further research, e.g. in the setting of the European Cardiovascular MR registry, is ongoing to address this issue. Recent studies also demonstrated the possiblity to reduce costs in the management of acute coronary syndromes when cardiac magnetic resonance is integrated into the routine work-up. In the near future, applications of cardiac magnetic resonance will continue to expand in the acute cardiac care units, as manufacturers are now strongly focusing on this aspect of user-friendliness. Finally, in the next decade or so, magnetic resonance imaging of other nuclei, such as fluorine and carbon, might become a reality in clinics, which would allow for metabolic and targeted molecular imaging with excellent sensitivity and specificity.
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Schwitter, Juerg, and Jens Bremerich. Cardiac magnetic resonance in the intensive and cardiac care unit. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199687039.003.0023_update_001.

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Current applications of cardiac magnetic resonance offer a wide spectrum of indications in the setting of acute cardiac care. In particular, cardiac magnetic resonance is helpful for the differential diagnosis of chest pain by the detection of ischaemia, myocardial stunning, myocarditis, and pericarditis. Also, Takotsubo cardiomyopathy and acute aortic diseases can be evaluated by cardiac magnetic resonance and are important differential diagnoses in patients with acute chest pain. In patients with restricted windows for echocardiography, according to guidelines, cardiac magnetic resonance is the method of choice to evaluate complications of an acute myocardial infarction. In an acute myocardial infarction, cardiac magnetic resonance allows for a unique characterization of myocardial damage by quantifying necrosis, microvascular obstruction, oedema (i.e. area at risk), and haemorrhage. These features will help us to understand better the pathophysiological events during infarction and will also allow us to assess new treatment strategies in acute myocardial infarction. To which extent the information on tissue damage will guide patient management is not yet clear, and further research, e.g. in the setting of the European Cardiovascular MR registry, is ongoing to address this issue. Recent studies also demonstrated the possiblity to reduce costs in the management of acute coronary syndromes when cardiac magnetic resonance is integrated into the routine work-up. In the near future, applications of cardiac magnetic resonance will continue to expand in the acute cardiac care units, as manufacturers are now strongly focusing on this aspect of user-friendliness. Finally, in the next decade or so, magnetic resonance imaging of other nuclei, such as fluorine and carbon, might become a reality in clinics, which would allow for metabolic and targeted molecular imaging with excellent sensitivity and specificity.
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3

Schwitter, Juerg, and Jens Bremerich. Cardiac magnetic resonance in the intensive and cardiac care unit. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199687039.003.0023_update_002.

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Abstract:
Current applications of cardiac magnetic resonance offer a wide spectrum of indications in the setting of acute cardiac care. In particular, cardiac magnetic resonance is helpful for the differential diagnosis of chest pain by the detection of ischaemia, myocardial stunning, myocarditis, and pericarditis. Also, Takotsubo cardiomyopathy and acute aortic diseases can be evaluated by cardiac magnetic resonance and are important differential diagnoses in patients with acute chest pain. In patients with restricted windows for echocardiography, according to guidelines, cardiac magnetic resonance is the method of choice to evaluate complications of an acute myocardial infarction. In an acute myocardial infarction, cardiac magnetic resonance allows for a unique characterization of myocardial damage by quantifying necrosis, microvascular obstruction, oedema (i.e. area at risk), and haemorrhage. These features will help us to understand better the pathophysiological events during infarction and will also allow us to assess new treatment strategies in acute myocardial infarction. To which extent the information on tissue damage will guide patient management is not yet clear, and further research, e.g. in the setting of the European Cardiovascular MR registry, is ongoing to address this issue. Recent studies also demonstrated the possiblity to reduce costs in the management of acute coronary syndromes when cardiac magnetic resonance is integrated into the routine work-up. In the near future, applications of cardiac magnetic resonance will continue to expand in the acute cardiac care units, as manufacturers are now strongly focusing on this aspect of user-friendliness. Finally, in the next decade or so, magnetic resonance imaging of other nuclei, such as fluorine and carbon, might become a reality in clinics, which would allow for metabolic and targeted molecular imaging with excellent sensitivity and specificity.
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Book chapters on the topic "Fluoride Ion Detection"

1

Pandey, Shivani, Satanand Mishra, Vijay Kumar Dwivedi, Tanmay Sardar, Archana Singh, and Hari Narayan Bhargav. "Advanced Sensor for Arsenic and Fluoride Detection." In Lecture Notes in Civil Engineering, 595–611. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9151-6_48.

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Waiczies, Sonia, Christian Prinz, Ludger Starke, Jason M. Millward, Paula Ramos Delgado, Jens Rosenberg, Marc Nazaré, Helmar Waiczies, Andreas Pohlmann, and Thoralf Niendorf. "Functional Imaging Using Fluorine (19F) MR Methods: Basic Concepts." In Methods in Molecular Biology, 279–99. New York, NY: Springer US, 2021. http://dx.doi.org/10.1007/978-1-0716-0978-1_17.

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AbstractKidney-associated pathologies would greatly benefit from noninvasive and robust methods that can objectively quantify changes in renal function. In the past years there has been a growing incentive to develop new applications for fluorine (19F) MRI in biomedical research to study functional changes during disease states. 19F MRI represents an instrumental tool for the quantification of exogenous 19F substances in vivo. One of the major benefits of 19F MRI is that fluorine in its organic form is absent in eukaryotic cells. Therefore, the introduction of exogenous 19F signals in vivo will yield background-free images, thus providing highly selective detection with absolute specificity in vivo. Here we introduce the concept of 19F MRI, describe existing challenges, especially those pertaining to signal sensitivity, and give an overview of preclinical applications to illustrate the utility and applicability of this technique for measuring renal function in animal models.This chapter is based upon work from the COST Action PARENCHIMA, a community-driven network funded by the European Cooperation in Science and Technology (COST) program of the European Union, which aims to improve the reproducibility and standardization of renal MRI biomarkers. This introduction chapter is complemented by two separate chapters describing the experimental procedure and data analysis.
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Pandey, Shivani, Satanand Mishra, H. N. Bhargaw, and Archana Singh. "Development of Probe for Arsenic and Fluoride Detection in Drinking Water." In Lecture Notes in Mechanical Engineering, 145–60. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-4140-5_13.

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Taka-ichi, Ken-ichi. "Fluorometric Determination of MMAN as a Sensitizer in Water Gel Explosives by HPLC Using Pre-Column Derivatization with 7-Dimethylaminocoumarin-3-Carbonyl Fluoride." In Advances in Analysis and Detection of Explosives, 209–22. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-017-0639-1_22.

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Sardar, Tanmay, Shivani Pandey, Satanand Mishra, and H. L. Tiwari. "Design of Smart Geo-Sensor for Detection of Fluoride in Water Resources." In Lecture Notes in Civil Engineering, 451–61. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9151-6_37.

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Yao, Jianhua, Hector Munoz, Joseph E. Burns, Le Lu, and Ronald M. Summers. "Computer Aided Detection of Spinal Degenerative Osteophytes on Sodium Fluoride PET/CT." In Lecture Notes in Computational Vision and Biomechanics, 51–60. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07269-2_5.

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Neeti, Krishna, Reena Singh, and Shaz Ahmad. "Fluoride Detection in Groundwater and its Correlation with Various Physicochemical Parameters in Gaya Town, Bihar, India." In Lecture Notes in Civil Engineering, 209–16. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1388-6_17.

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Guan, Hongjian, Ruilin Yang, Yi Tao, Huilin Tai, Yuanjie Su, Yang Wang, and Weizhi Li. "Flexible Humidity Sensor Based on Polyvinylidene Fluoride." In Advances in Transdisciplinary Engineering. IOS Press, 2022. http://dx.doi.org/10.3233/atde221203.

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Polyvinylidene fluoride (PVDF) is considered to be one of the most promising candidates for next-generation wearable sensors; however, the sensing ability of PVDF is worth expanding beyond its ferroelectricity. In this work, PVDF is used as matrix material for humidity detection by adding two other ingredients: lithium chloride (LiCl) and polyvinyl alcohol (PVA), optimal concentrations of LiCl and PVA are found by systematic investigation of the impact of the two inclusions on humidity sensing ability of the composites.
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Conference papers on the topic "Fluoride Ion Detection"

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Subhashree Ojha, N. N., Hemalatha V., Naveen Kumar, Jayachandra Bingi, and Ashok Reddy. "Single-Fiber Mach-Zehnder Interferometer based Detection of Fluoride Ion Contamination in Water." In 2019 Workshop on Recent Advances in Photonics (WRAP). IEEE, 2019. http://dx.doi.org/10.1109/wrap47485.2019.9013715.

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Yuan, Zhihao. "Development and Intelligent Investigation of Fluoride Ion Detection Equipment Based on Spectrophotometric Method." In 2022 IEEE 2nd International Conference on Electronic Technology, Communication and Information (ICETCI). IEEE, 2022. http://dx.doi.org/10.1109/icetci55101.2022.9832195.

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Qiu, Ni, Gangwen Xie, Qiang Yao, Yulong Miao, Fuping Zeng, and Liangjun Dai. "The Detection of Hydrolyzable Fluoride in SF6 Equipment by Ion Chromatography and Application in Fault Determination." In 2019 2nd International Conference on Electrical Materials and Power Equipment (ICEMPE). IEEE, 2019. http://dx.doi.org/10.1109/icempe.2019.8727271.

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Singh, Archana, and Darshak R. Trivedi. "Naked-eye detection of inorganic fluoride and acetate ion in an aqueous medium using organic receptor: Real life application." In ADVANCES IN BASIC SCIENCE (ICABS 2019). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5122641.

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Maikap, A., K. Mukherjee, B. Mondal, N. Mandal, and A. Meikap. "Ferric hydroxide thin film based novel electrode for electrochemical detection of fluoride ion (F−) present in water in trace level." In DAE SOLID STATE PHYSICS SYMPOSIUM 2018. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5113153.

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Bischel, William K., and Leonard J. Jusinski. "Multiphoton Ionization spectroscopy of atomic fluorine." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1985. http://dx.doi.org/10.1364/oam.1985.tuc6.

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The study of the electronic spectrum of atomic fluorine is extremely difficult since all the single photon transitions from the ground state require wavelengths that are below the LiF window cutoff at 106 nm. This situation presents an ideal application for the techniques of multiphoton excitation, followed by either fluorescence or ionization detection. We report here the first observation of three-photon resonant excitation of the 2 P1/2,3/2 excited states in atomic fluorine at 105,000 cm-1. This state is then ionized by the absorption of two additional photons forming a five-photon process. The experiment consists of focusing a doubled YAG-pumped dye laser at 286.3 nm into a flowing cell containing a mixture of F2 and He. The UV radiation completely dissociates the F2 in the focal volume and simultaneously ionizes the atomic fluorine. The ions are collected with a pair of biased electrodes and the charge is amplified. We estimate that ~104 ions are produced in the focal volume for a 1:1 signal/noise ratio. We also observe three-photon resonant four-photon ionization of molecular F2 in the same region. This is the first observation of the MPI spectrum of F2 and most of the observed features have been assigned using previous data.1 We have carefully measured the intensity of our laser in the focal volume and present estimates of the effective five-photon ionization cross section for detection applications.
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Faris, Gregory W., and William K. Bischel. "Two-photon spectroscopy of the F1∏g and f3∏g states of molecular fluorine." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1988. http://dx.doi.org/10.1364/oam.1988.thdd1.

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In the interest of developing a sensitive detection technique for molecular fluorine, we attempted two-photon-excited ionization detection of the F1∏ g state. The frequency-doubled output of a Nd:YAG-pumped dye laser was Raman shifted and the third anti-Stokes line selected with a Pellin-Broca prism. This light at around 207 nm was focused into a cell containing ~120 Torr of 10% F2 in He gas mixture. The ions produced were detected with a pair of electrodes biased to 500 V and amplified with a charge amplifier. High-resolution spectra of both the F1∏ g state and the near-lying f3∏ g state were obtained. The f3∏ g state, a spin-forbidden transition from the ground state, is of interest because it is thought to be the upper level of the F2 laser transition at 157 nm, possibly the spectrally brightest source in the VUV today. In a recent theoretical investigation1 of the f3∏ g state in fluorine it was found that the 157-nm laser transition could not be conclusively assigned. We are currently attempting to observe VUV fluorescence from the two-photon excited f3∏ g state. If this experiment is successful, it would definitively assign the upper level of the F2 laser, allow further spectroscopy measurements of this important level, and demonstrate a fluorescence-based detection technique for molecular fluorine.
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Hudgens, Jeffrey W., and C. S. Dulcey. "Detection of SiF radicals with multiphoton ionization spectroscopy." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1985. http://dx.doi.org/10.1364/oam.1985.thm6.

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We have demonstrated sensitive resonance-enhanced multiphoton ionization detection (REMPI) of silicon monofluoride radicals, SiF, using light from a Nd:YAG pumped dye laser tuned between 430 and 490 nm. This SiF radical is of interest to the semiconductor industry since it is one of the products observed during chemical etching reactions at silicon surfaces. SiF radicals were generated by the reaction of fluorine atoms with silane in a low pressure flow reactor. The laser-ionized radicals were detected in a quadrupole mass spectrometer with a sensitivity of better than 1010/cm3. Two laser excitation schemes were used: (1) simultaneous two-photon absorption through C'2∏ r ← X2∏ and C″2∑+ ← X2∏ r transitions and (2) sequential one-photon absorption through the (0,0) A2∑+ ← X2∏½ and (1,0)C″2∑+ ← A2∑+ transitions. In both schemes SiF radicals absorbed at least three photons before ionizing. An attractive feature of SiF REMPI detection is that the ion signal is concentrated exclusively into m/z 47.
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Ho, Kuan-I., Tseng-Fu Lu, Meng-Cin Su, Jer-Chyi Wang, Chia-Ming Yang, Dorota G. Pijanswska, and Chao-Sung Lai. "Highly sensitivity of potassium ion detection realized on fluorinated-HfO2 by fluorine implantation on EIS." In TRANSDUCERS 2011 - 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference. IEEE, 2011. http://dx.doi.org/10.1109/transducers.2011.5969280.

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Weber, Marvin J., J. Wong, R. B. Greegor, F. W. Lytle, and D. R. Sandstrom. "Optically detected x-ray absorption spectroscopy of luminescent materials." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.mgg2.

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X-ray absorption near edge and extended fine structure (EXAFS/XANES) has been observed from luminescence excitation spectra of crystals and glasses using synchrotron radiation. The luminescence may either be intrinsic (recombination radiation from alkaki halides, alkaline earth fluorides, oxides) or from activator ions (rare earths, transition metals, organic dyes) excited directly or indirectly. Core electron excitations of cations and anions in luminescent materials have been investigated in the energy range from the VUV to hard x-rays. Absorption features may appear as an increase or decrease in the luminescence intensity depending on the sample thickness with respect to the x-ray absorption length, observation geometry, and intermediate relaxation processes. For materials with multiple sites, conventional x-ray absorption spectroscopy measures some average of different site populations. Since luminescence spectra vary with the local environment, using optical detection measurements can be both atom specific via the characteristic x-ray absorption edge energy and site and valence specific via the optical wavelength.
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Reports on the topic "Fluoride Ion Detection"

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Timothy M. Swager. Ultra-Trace Detection of Fluoride Ion and Hydrofluoric Acid. Office of Scientific and Technical Information (OSTI), March 2005. http://dx.doi.org/10.2172/839396.

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Fernando, P. U. Ashvin Iresh, Gilbert Kosgei, Matthew Glasscott, Garrett George, Erik Alberts, and Lee Moores. Boronic acid functionalized ferrocene derivatives towards fluoride sensing. Engineer Research and Development Center (U.S.), July 2022. http://dx.doi.org/10.21079/11681/44762.

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In this technical report (TR), a robust, readily synthesized molecule with a ferrocene core appended with one or two boronic acid moieties was designed, synthesized, and used toward F- (free fluoride) detection. Through Lewis acid-base interactions, the boronic acid derivatives are capable of binding with F- in an aqueous solution via ligand exchange reaction and is specific to fluoride ion. Fluoride binding to ferrocene causes significant changes in fluorescence or electrochemical responses that can be monitored with field-portable instrumentation at concentrations below the WHO recommended limit. The F- binding interaction was further monitored via proton nuclear magnetic resonance spectroscopy (1H-NMR). In addition, fluorescent spectroscopy of the boronic acid moiety and electrochemical monitoring of the ferrocene moiety will allow detection and estimation of F- concentration precisely in a solution matrix. The current work shows lower detection limit (LOD) of ~15 μM (285 μg/L) which is below the WHO standards. Preliminary computational calculations showed the boronic acid moieties attached to the ferrocene core interacted with the fluoride ion. Also, the ionization diagrams indicate the amides and the boronic acid groups can be ionized forming strong ionic interactions with fluoride ions in addition to hydrogen bonding interactions.
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