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Journal articles on the topic 'Anions Chemosensors/Sensors'

Author: Grafiati

Published: 7 September 2021

Last updated: 29 July 2025

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1

Wang, Yujiao, Xiaojun Wang, Wenyu Ma, Runhua Lu, Wenfeng Zhou, and Haixiang Gao. "Recent Developments in Rhodamine-Based Chemosensors: A Review of the Years 2018–2022." Chemosensors 10, no. 10 (2022): 399. http://dx.doi.org/10.3390/chemosensors10100399.

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Chemosensors based on traditional fluorescent dyes have always contributed to the development of chemical sensor areas. In this review, the rhodamine-based chemosensors’ improvements and applications from 2018 to 2022 are discussed, mainly focusing on cations (metal ions and H+), anions (CN−, F−, etc.), and small bio-functional molecules’ (thiols, amino acids, etc.) detection. Specifically, this review highlights the detection target, detection limit, detection solution system, detection mechanism, and performance of the rhodamine-based sensors. Although these rhodamine-based sensors are well

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González-Ruiz, Víctor, Ángel Cores, M. Mar Caja, et al. "Fluorescence Sensors Based on Hydroxycarbazole for the Determination of Neurodegeneration-Related Halide Anions." Biosensors 12, no. 3 (2022): 175. http://dx.doi.org/10.3390/bios12030175.

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The environmental presence of anions of natural origin or anthropogenic origin is gradually increasing. As a tool to tackle this problem, carbazole derivatives are an attractive gateway to the development of luminescent chemosensors. Considering the different mechanisms proposed for anion recognition, the fluorescence properties and anion-binding response of several newly synthesised carbazole derivatives were studied. Potential anion sensors were designed so that they combined the native fluorescence of carbazole with the presence of hydrogen bonding donor groups in critical positions for ani

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sarkar, Mrinal. "A Review on 2,6-Diformyl-4-methylphenol Derived Schiff Bases as Fluorescent Sensors." Asian Journal of Chemistry 32, no. 8 (2020): 1837–48. http://dx.doi.org/10.14233/ajchem.2020.22644.

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2,6-Diformyl-4-methylphenol fluorophore derived Schiff base sensors detect metal ions such as Zn2+, Al3+, Hg2+, Cd2+, Sn2+ and Cu2+ with high sensitivity and selectivity through changes in fluorescence intensity based on CHEF, ICT, FRET, ESIPT, C=N isomerization and PET mechanism. Several anions viz. HPO4 2–, H2PO4 –, PO4 3–, AsO3 3–, H2AsO4 –, AsO2 –, PPi (pyrophosphate), I–, F– and N3 – were also detected through intermolecular hydrogen bonding (between sensor and anion) based on TICT, PET, CHEF, ESIPT and aggregation induced emission mechanism. Selectivity and sensitivity for these metal io

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Kumudhavalli, D., and Ayyakannu Arumugam Napoleon. "A Mini Review on Arsenic and Cadmium Ion Detection Using Fluorescent-Colorimetric Sensors." ECS Transactions 107, no. 1 (2022): 16833–42. http://dx.doi.org/10.1149/10701.16833ecst.

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Heavy metals with high atomic numbers, mass, and density are five times greater than water. They are naturally occurring elements and widely distributed in the environment due to their numerous applications like agricultural, industrial, domestic, technological, and medical fields increasing issues about their potential impact on the environment and human health. In this mini review, we focused on cadmium and arsenic metals. Cadmium is also the non-essential toxic heavy metal element found naturally in the earth's crust, and it is easily affected by plants’ movements through the food cycle and

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Thomas, Mallory E., and Alistair J. Lees. "A Review of the Molecular Aggregation of Small-Molecule Anion Sensors for Environmental Contaminates in Aqueous Media." Sustainable Chemistry 6, no. 2 (2025): 17. https://doi.org/10.3390/suschem6020017.

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A primary challenge in the further development of anion sensors in real water samples of environmental concern is the need for highly water-soluble compounds that are able to detect low concentrations of analytes. Small-molecule sensors can mitigate solubility constraints and highly aromatic or conjugated systems may provide a new way to recognize target analytes with high sensitivity and/or selectivity. Organic aggregates that have the ability to form large frameworks can exhibit aggregated-induced emissions to detect target analytes, and their coagulation can provide enhanced detection via c

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Roy, Sumit, Ashim Maity, Naren Mudi, Milan Shyamal, and Ajay Misra. "Rhodamine scaffolds as real time chemosensors for selective detection of bisulfite in aqueous medium." Photochemical & Photobiological Sciences 18, no. 6 (2019): 1342–49. http://dx.doi.org/10.1039/c8pp00558c.

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Rhodamine and its derivatives have been widely used in designing fluorescent ‘turn on’ cation sensors, while very few rhodamine based fluorescent probes have been reported to date for the detection of anions in water.

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7

Chua, Ming Hui, Kwok Wei Shah, Hui Zhou, and Jianwei Xu. "Recent Advances in Aggregation-Induced Emission Chemosensors for Anion Sensing." Molecules 24, no. 15 (2019): 2711. http://dx.doi.org/10.3390/molecules24152711.

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The discovery of the aggregation-induced emission (AIE) phenomenon in the early 2000s not only has overcome persistent challenges caused by traditional aggregation-caused quenching (ACQ), but also has brought about new opportunities for the development of useful functional molecules. Through the years, AIE luminogens (AIEgens) have been widely studied for applications in the areas of biomedical and biological sensing, chemosensing, optoelectronics, and stimuli responsive materials. Particularly in the application of chemosensing, a myriad of novel AIE-based sensors has been developed to detect

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Perdana, Fitra, Karna Wijaya, and Ria Armunanto. "Studi Teoritis Senyawa Turunan Kalkon Hidroksi Sebagai Sensor Kimia Berbagai Anion." Jurnal Kimia Riset 3, no. 2 (2019): 95. http://dx.doi.org/10.20473/jkr.v3i2.10425.

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AbstrakStudi secara teoritis telah dilakukan untuk mempelajari interaksi senyawa turunan kalkon hidroksi (CH) sebagai sensor kimia dengan anion F-, Cl-, Br-, CN-, CH3COO-, dan NO3-. Penelitian ini bertujuan untuk memodelkan struktur molekul senyawa turunan kalkon hidroksi (CH) dan sifat sensornya serta model interaksinya dengan anion dengan metode DFT. Hasil optimasi geometri menunjukkan terjadinya pemanjangan ikatan O-H sebesar 0,63-0,85 Å dengan adanya anion F-, CN-, and CH3COO-. Hal ini mengindikasikan terjadinya deprotonasi sensor kalkon hidroksi (CH) oleh anion. Sedangkan interaksi sensor

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9

Prestiani, Agustina Eka, and Bambang Purwono. "Styrene and Azo-Styrene Based Colorimetric Sensors for Highly Selective Detection of Cyanide." Indonesian Journal of Chemistry 17, no. 2 (2017): 238. http://dx.doi.org/10.22146/ijc.24887.

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A novel styrene (1) and azo-styrene (2) based chemosensor from vanillin has been successfully synthesized. Sensor 1 was obtained by one step Knoevenagel condensation of Ultrasound method and sensor 2 by coupling diazo and Knoevenagel condensation reaction. Both of sensors showed high sensitivity and selectivity to detect CN- in aqueous media, even the presence of other anions, such as F-, Cl-, Br-, I-, CO32-, SO42-, H2PO4-, and AcO-. Colorimetric sensing of sensor 1 is inclined to be deprotonating of sensor binding site in the presence of cyanide and consequently improve the selectivity and se

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10

Udhayakumari, Duraisamy. "Various Sensing Mechanisms for the Design of Naphthalimide based Chemosensors Emerging in Recent Years." Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering) 13, no. 4 (2020): 262–89. http://dx.doi.org/10.2174/2405520413666200217125754.

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In the design of novel fluorescent chemosensors, investigation of new sensing mechanisms between recognition and signal reporting units is of increasing interest. In recent years, a smart chemosensor probe containing a 1,8-naphthalimide moiety could be developed as a fluorescent and colorimetric sensor for toxic anions, metal ions, biomolecules, nitroaromatics, and acids and be further applied to monitor the relevant biological applications. In this field, several problems and challenges still exist. This critical review is mainly focused on various sensing mechanisms that have emerged in the

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11

Suryanti, Venty, Fajar Rakhman Wibowo, and Sekar Handayani. "Methyl-3-(2-hidroxy-5-nitrophenyl amino)-3-phenylpropanoate Based Colorimetric Sensor for Oxyanions." Indonesian Journal of Chemistry 20, no. 2 (2020): 257. http://dx.doi.org/10.22146/ijc.39559.

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A colorimetric anion sensor of methyl-3-(2-hydroxy-5-nitrophenyl amino)-3-phenylpropanoate bearing –OH and –NH groups as binding sites and nitrophenyl as a signaling unit, has been successfully accomplished. The compound functioned as a colorimetric chemosensor for H2PO4– and AcO–, in particular, the sensor showed significant naked-eye detectable color change from colorless to light yellow. In contrast, no color change was detected upon addition of other anions such as SO42–, NO3–, and CIO4–. The anion sensing ability of the sensor was further investigated by UV-Vis absorption spectroscopy in

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Irmi, Nur Masyittah, Bambang Purwono, and Chairil Anwar. "Synthesis of Symmetrical Acetophenone Azine Derivatives as Colorimetric and Fluorescent Cyanide Chemosensors." Indonesian Journal of Chemistry 21, no. 6 (2021): 1337. http://dx.doi.org/10.22146/ijc.64428.

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Cyanide is a highly toxic anion and poison to the environment. Therefore, fast, effective, and efficient analysis methods to detect cyanide are needed. Herein, symmetrical chemosensor of 2’-hydroxy acetophenone azine (1) and 2’,4’-dihydroxy acetophenone azine (2) has been synthesized tested as colorimetric and fluorescent cyanide chemosensor. The azines were produced from the condensation of acetophenone derivatives with hydrazine hydrate in ethanol under reflux or ultrasonic irradiation methods. Colorimetric and fluorescent chemosensor tests showed selectivity to acetate and cyanide anions in

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13

Rezaeian, Khatereh, Hamid Khanmohammadi, and Nafiseh Shabani. "Sequential Detection of CN- and HSO4- Anions in an Aqueous Environment Utilizing a New Colorimetric Azoimine Receptor: Mimicking Logic Gate Behaviour and a Security Keypad Lock." Australian Journal of Chemistry 71, no. 5 (2018): 389. http://dx.doi.org/10.1071/ch18048.

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A new isonicotiamide-based azoimine receptor has been successfully devised and synthesised for dual-recognition of CN− and HSO4− anions in aqueous media (3 : 2 DMSO–water solution). The devised azomethine probe detected lethal cyanide ions under UV-vis spectroscopy through the rapid appearance of an orange colour. More importantly, the colour and spectroscopic changes of the devised chemosensor could be revived upon the addition of HSO4− to the sensor containing cyanide ions. Furthermore, other surveyed anions failed to induce a similar response. Interestingly, based on changes in absorption i

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14

AYDIN, Fatma. "A new colorimetric sensor based on semithiocarbazone for some anions: 2-(1,3-dioxo-1,3-dihydro-2H-inden-2-ylidene)-N-phenylhydrazine-1-carbothioamide." Journal of New Results in Science 12, no. 2 (2023): 108–17. http://dx.doi.org/10.54187/jnrs.1338019.

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Carbazones are molecules containing important functional groups in designing anion chemosensors due to proton donor and acceptor sites in their structures. In this paper, we synthesize a novel colorimetric receptor with 1,3-dioxo-indene and thiosemicarbazone moieties by the reaction of ninhydrin and 4-phenyl-thiosemicarbazide in quantitative yield. We then identify its structure by means of FT-IR, $^{1}$H-NMR, $^{13}$C-NMR, and MS spectroscopic techniques. Moreover, we observe the reaction of the title compound with biologically important F$^¯$, OAc$^¯$, CN$^¯$, H2PO4$^¯$, and OH$^¯$ anions in

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15

Šídlo, Michal, Přemysl Lubal, and Pavel Anzenbacher. "Colorimetric Chemosensor Array for Determination of Halides." Chemosensors 9, no. 2 (2021): 39. http://dx.doi.org/10.3390/chemosensors9020039.

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The halide anions are essential for supporting life. Therefore, halide anion analyses are of paramount importance. For this reason, we have performed both qualitative and quantitative ana- lyses of halides (chloride, bromide, iodide) using the Tl(III) complex of azodye, 4-(2-pyridylazo)re- sorcinol (PAR), a potential new chemical reagent/sensor that utilizes the substitution reaction whereas the Tl(III)PAR complex reacts with a halide to yield a more stable thallium(III)-halide while releasing the PAR ligand in a process accompanied by color change of the solution. The experimental conditions

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Rahmawati, R., and Fara Dwirani Sofia. "Effect of oxygen heteroatom on sensor-cyanide anions binding." Acta Chimica Asiana 5, no. 2 (2022): 208–11. http://dx.doi.org/10.29303/aca.v5i2.118.

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The study aims to analyze the effect of heteroatom replacement on benzimidazole derivative chemosensor compounds on the ability to form hydrogen bonds with anions. In this case, the N heteroatom in the benzimidazole derivative sensor compound (S1) is replaced with the O heteroatom to become a benzoxazole derivative sensor compound (S3). Calculating the energy of the molecules involved in the electron level gives the following results: replacing heteroatoms with more electronegative atoms increases the HOMO energy of the sensor molecules, making the sensor more reactive to anions and strengthen

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17

Farrugia, Kristina N., Damjan Makuc, Agnieszka Podborska, Konrad Szaciłowski, Janez Plavec, and David C. Magri. "UV-visible and 1H–15N NMR spectroscopic studies of colorimetric thiosemicarbazide anion sensors." Organic & Biomolecular Chemistry 13, no. 6 (2015): 1662–72. http://dx.doi.org/10.1039/c4ob02091j.

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Four model thiosemicarbazide anion chemosensors containing three N–H bonds, substituted with phenyl and/or 4-nitrophenyl units, were synthesised and studied for their anion binding abilities with hydroxide, fluoride, acetate, dihydrogen phosphate and chloride.

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18

Chen, Jie, Qi Lin, Qiao Li, Wen-Ting Li, You-Ming Zhang, and Tai-Bao Wei. "A highly selective colorimetric chemosensor for detection of iodide ions in aqueous solution." RSC Advances 6, no. 89 (2016): 86627–31. http://dx.doi.org/10.1039/c6ra18490a.

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19

Mondal, Subhendu, and Kumaresh Ghosh. "Naphthalimide-linked bispyridinium clefts in selective aqueous sensing of triphosphate and triphosphate-based biomolecules." Analytical Methods 11, no. 46 (2019): 5864–71. http://dx.doi.org/10.1039/c9ay01588d.

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Naphthalimide-based charged chemosensors 1 and 2 selectively bind P<sub>3</sub>O<sub>10</sub><sup>5−</sup> and ATP in aqueous CH<sub>3</sub>CN over a series of anions including ADP and AMP by exhibiting marked quenching of emission. Sensor 1 shows greater sensitivity than sensor 2.

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Rahmawati, R., Syarifa Wahidah Al Idrus, Supriadi Supriadi, and Lalu Sulman. "Synthesis of 5-nitrovanillin in low temperature as cyanide anion sensor." Acta Chimica Asiana 4, no. 1 (2021): 104. http://dx.doi.org/10.29303/aca.v4i1.46.

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In the synthesis of the organic sensor, the molecular structure will affect the ability of a compound to be used as a colorimetric chemosensor. Here, we present a simple synthesis technique for 5-nitrovanillin. It has been successfully synthesized using nitric acid as a source of nitro groups. Dichloromethane DCM was used as a solvent, and the synthesis was carried out at low temperatures (under 5°C). The method produces a good yield. The nitro group attached to the structure of the chemosensor plays a role in prolonging the electron delocalization. Its effect is in the process of anion recogn

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21

Gomes, Liliana J., João P. Carrilho, Pedro M. Pereira, and Artur J. Moro. "A Near InfraRed Emissive Chemosensor for Zn2+ and Phosphate Derivatives Based on a Di-(2-picolyl)amine-styrylflavylium Push-Pull Fluorophore." Sensors 23, no. 1 (2023): 471. http://dx.doi.org/10.3390/s23010471.

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A new Near InfraRed (NIR) fluorescent chemosensor for metal ions and anions is herein presented. The fluorophore is based on a styrylflavylium dye, a synthetic analogue of the natural anthocyanin family, with a di-(2-picolyl)amine (DPA) moiety as the metal chelating unit. The substitution pattern of the styrylflavylium core (with tertiary amines on positions 7 and 4′) shifts the optical properties of the dye towards the NIR region of the electronic spectra, due to a strong push-pull character over the π-conjugated system. The NIR chemosensor is highly sensitive to the presence of Zn2+, which i

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Kumaresh, Ghosh, and Saha Indrajit. "Triphenylamine-based oxidized bis(indolyl)methane as fluorogenic and chromogenic chemosensor for anions." Journal of Indian Chemical Society Vol. 94, Jul 2017 (2017): 707–14. https://doi.org/10.5281/zenodo.5604894.

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Department of Chemistry, University of Kalyani, Kalyani-741 235, Nadia, West Bengal, India <em>E-mail</em> : ghosh_k2003@yahoo.co.in Department of Chemistry, R. K. Mahavidyalaya, Kailashahar, Unakoti-741 235, Tripura, India <em>Manuscript received 21 April 2017, accepted 08 May 2017</em> Triphenylamine coupled oxidised bis(indolyl)methane 1 has been designed and synthesized for optical sensing of anions in organic (CH<sub>3</sub>CN) and semi aqueous (CH<sub>3</sub>CN/H<sub>2</sub>O, 4 : 1, v/v) medium. The sensory system exhibited ratiometric change in emission upon addition of fluoride anion

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Wu, Fuyong, Long Chen, Mei Yu, et al. "Triazine Calixarene as a Dual-Channel Chemosensor for the Reversible Detection of Cu2+ and I− Ions via Water Content Modulation." Molecules 30, no. 13 (2025): 2815. https://doi.org/10.3390/molecules30132815.

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Rationally designing and synthesizing chemosensors capable of simultaneously detecting both anions and cations via water content modulation is challenging. In this study, we synthesized and characterized a novel triazine calixarene derivative-based iodide and copper ion-selective fluorescent “turn-off” sensor. This dual-channeled fluorescent probe is able to recognize Cu2+ and I− ions simultaneously in aqueous systems. The fluorescent sensor s4 was synthesized by displacement reaction of acridine with 1, 3-bis (dichloro-mono-triazinoxy) benzene in acetonitrile. Mass spectrometry (MS), UV-vis,

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Shang, Xuefang, Jie Li, Kerong Guo, et al. "The Synthetic and Anion-binding Ability of Novel Colorimetric Chemosensors Based on Azobenzol Derivatives: Experimental and Theoretical." Current Organic Synthesis 15, no. 1 (2018): 143–49. http://dx.doi.org/10.2174/1570179414666170519151147.

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Background: Azobenzol derivatives are important organic materials and show unique optical function. As a potential host, azobenzene has been broadly exploited in many areas because of its efficient inclusion ability and easy derivatization by functional groups. Objective: A series of twelve novel compounds have been synthesized and optimized based on azobenzol derivatives. Method: The binding properties were evaluated for biologically important anions (F-, Cl-, Br-, I-, AcO- and H2PO4-) by theoretical investigation, UV-vis, fluorescence experiments. Results: The compound containing three nitro

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Aman, Bhasin, Kaur Simanpreet, Mayank, Singh Narinder, and Kaur Navneet. "A novel thiourea-based colorimetric chemosensor for sensitive and selective detection of sulphate ion in semi-aqueous medium." Journal of Indian Chemical Society Vol. 94, Jul 2017 (2017): 745–54. https://doi.org/10.5281/zenodo.5604919.

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Department of Chemistry, Punjab University, Chandigarh-160 014, India <em>E-mail</em> : navneetkaur@pu.ac.in Centre for Nanoscience and Nanotechnology (UIEAST), Punjab University, Chandigarh-160 014, India Department of Chemistry, Indian Institute of Technology, Ropar (IIT Ropar), Rupnagar-140 001, Punjab, India <em>E-mail</em> : nsingh@iitrpr.ac.in <em>Manuscript received 21 April 2017, accepted 08 May 2017</em> Within the pool of naturally available anions, the sulphate anion has gained a certain level of notoriety by playing a critical role in contaminating the animal food chain, apart from

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Rezaeian, Khatereh, Hamid Khanmohammadi, and Samira Gholizadeh Dogaheh. "Studies on a multifunctional chromo-fluorogenic sensor for dual channel recognition of Zn2+ and CN− ions in aqueous media: mimicking multiple molecular logic gates and memory devices." New Journal of Chemistry 42, no. 3 (2018): 2158–66. http://dx.doi.org/10.1039/c7nj04216g.

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A new effectual naphthalene-based azomethine receptor has been systematically designed and synthesized as a selective colorimetric and fluorescent chemosensor for dual channel detection of cations and anions in aqueous environments.

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Ghosh, Pritam, Biswajit Gopal Roy, Subhra Kanti Mukhopadhyay, and Priyabrata Banerjee. "Recognition of fluoride anions at low ppm level inside living cells and from fluorosis affected tooth and saliva samples." RSC Advances 5, no. 35 (2015): 27387–92. http://dx.doi.org/10.1039/c5ra01720c.

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Ghosh, Debanjana, Shannon Rhodes, Karena Hawkins, et al. "A simple and effective 1,2,3-triazole based “turn-on” fluorescence sensor for the detection of anions." New Journal of Chemistry 39, no. 1 (2015): 295–303. http://dx.doi.org/10.1039/c4nj01411a.

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Huang, Xiao-Huan, Yong-Bing He, Zhi-Hong Chen, Chen-Guang Hu, and Guang-Yan Qing. "Novel chiral fluorescent chemosensors for malate and acidic amino acids based on two-arm thiourea and amide." Canadian Journal of Chemistry 86, no. 2 (2008): 170–76. http://dx.doi.org/10.1139/v07-147.

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The charge neutral anthracene based chiral fluorescent receptors 4a and 4b containing thiourea and amide groups were synthesized by simple steps in good yields, and their enantioselective recognition for chiral dicarboxylic anions (L/D-malate, L/D-aspartate, and L/D-glutamate) were examined by UV–vis, fluorescence, and 1H NMR spectroscopy. The sensor 4a exhibited an excellent enantioselective recognition ability towards malate (Kass (L)/Kass (D) = 9.65).Key words: enantioselective recognition, chiral chemosensor, fluorescence, malate.

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Yang, Xiaofeng, Gege Zhang, Yexin Li, et al. "Colorimetric and fluorogenic signalling of fluoride ions by diketopyrrolopyrrole-based chemosensor." RSC Advances 5, no. 29 (2015): 22455–62. http://dx.doi.org/10.1039/c4ra14639e.

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Moro, Artur J., Miguel Santos, Mani Outis, Pedro Mateus, and Pedro M. Pereira. "Selective Coordination of Cu2+ and Subsequent Anion Detection Based on a Naphthalimide-Triazine-(DPA)2 Chemosensor." Biosensors 10, no. 9 (2020): 129. http://dx.doi.org/10.3390/bios10090129.

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A new fluorescent chemosensor for copper (II) and subsequent anion sensing was designed and fully characterized. The sensor consisted of a 1,8-naphthalimide core, bearing two terminal dipicolylamine (DPA) receptor units for binding metal cations, and an ethoxyethanol moiety for enhanced water solubility. The DPA units are connected to position 4 of the fluorophore via a triazine-ethylenediamine spacer. Fluorescence titration studies of the chemosensor revealed a high selectivity for Cu2+ over other divalent ions, the emissions were strongly quenched upon binding, and a stability constant of 5.

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Sahu, Meman, Amit Kumar Manna, Shubhamoy Chowdhury, and Goutam Kumar Patra. "A novel dihydro phenylquinazolinone-based two-in-one colourimetric chemosensor for nickel(ii), copper(ii) and its copper complex for the fluorescent colourimetric nanomolar detection of the cyanide anion." RSC Advances 10, no. 73 (2020): 44860–75. http://dx.doi.org/10.1039/d0ra09023a.

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A novel colorimetric chemosensor L has been developed for the detection of Ni<sup>2+</sup> and Cu<sup>2+</sup> ions. The obtained L–Cu<sup>2+</sup> complex can be used as a new cascade fluorescent-colorimetric sensor for the nanomolar detection of CN<sup>−</sup> ions. This chemosensor has practical application.

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Barakat, Assem, Mohammad Shahidul Islam, Abdullah Mohammed Al-Majid, et al. "Quantum chemical insight into the molecular structure of L-chemosensor 1,3-dimethyl-5-(thien-2-ylmethylene)-pyrimidine-2,4,6-(1H,3H,5H)-trione: Naked-eye colorimetric detection of copper(II) anions." Journal of Theoretical and Computational Chemistry 17, no. 01 (2018): 1850005. http://dx.doi.org/10.1142/s0219633618500050.

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A sensitive colorimetric L-chemosensor 1,3-dimethyl-5-(thien-2-ylmethylene)-pyrimidine-2,4,6-(1[Formula: see text]-trione was developed by Knoevenagel combination of barbituric acid with thiophene aldehyde chelating moiety. The sensor displayed a high colorimetric Cu(II)X2 response; a dramatic methanol color change was recorded depending on anion type ([Formula: see text], Cl[Formula: see text], ClO[Formula: see text], NO[Formula: see text], OAc[Formula: see text], and SO[Formula: see text]. Off-on-off decolorized halochromism of the L-chemosensor/CuBr2 was recorded in an acidic medium. The st

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CROLL, ROGER P. "Sensory Control of Respiratory Pumping in Aplysia Californica." Journal of Experimental Biology 117, no. 1 (1985): 15–27. http://dx.doi.org/10.1242/jeb.117.1.15.

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The frequency of respiratory pumping in Aplysia increases when CO2 is bubbled through the bathing sea water. Air, O2 and N2 do not have this effect. The sensitivity to CO2 may be mediated by receptors which are sensitive to pH changes within the range encountered during hypercapnia. In addition to the frequency change during hypercapnia, increases in the rate of pumping occur after titration to low pH with hydrochloric, acetic, nitric and sulphuric acids, thus indicating sensitivity to changes in the concentration of hydrogen ions and not to any specific anions. High pH and large deviations fr

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Ponnuvel, Kandasamy, Kuppusamy Santhiya, and Vediappen Padmini. "Curcumin based chemosensor for selective detection of fluoride and cyanide anions in aqueous media." Photochemical & Photobiological Sciences 15, no. 12 (2016): 1536–43. http://dx.doi.org/10.1039/c6pp00254d.

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Wang, Jiayi, Junjie Jiang, Grigory V. Zyryanov, and Yuanli Liu. "A Gold Nanoparticle-Based Molecular Self-Assembled Colorimetric Chemosensor Array for Monitoring Multiple Organic Oxyanions." Processes 10, no. 7 (2022): 1251. http://dx.doi.org/10.3390/pr10071251.

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Determination of oxyanions is of paramount importance because of the essential role they play in metabolic processes involved in various aquatic environmental problems. In this investigation, a novel chemical sensor array has been developed by using gold nanoparticles modified with different chain lengths of aminothiols (AET-AuNPs) as sensing elements. The proposed sensor array provides a fingerprint-like response pattern originating from cross-reactive binding events and capable of targeting various anions, including the herbicide glyphosate. In addition, chemometric techniques, linear discri

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37

Mustika, Realita Dini, Nurul Hidayat Aprilita, and Dwi Siswanta. "The Development of Digital Colorimetric-Based Thiourea Receptor for Highly Sensitive Detection of Dihydrogen Phosphate." Chiang Mai Journal of Science 51, no. 4 (2024): 1–12. http://dx.doi.org/10.12982/cmjs.2024.056.

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T his study aimed to synthesize a new chemosensor, namely 1,1’-(1,4-phenylene)bis(3-(4-nitrophenyl)thiourea), specifically designed for detection of H2PO4−. The compound was characterized using FTIR, LC-MS, 1H NMR, and 13C NMR, while the colorimetric sensing abilities were validated through various analyses. These include linearity, limit of detection (LOD), limit of quantification (LOQ), precision, and accuracy using UV-Vis spectrophotometry, RGB, and HSV color components. Digital images of color changes were captured using a smartphone camera and Color Grab app was used to quantify color com

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Said, Awad I., Desislava Staneva, Silvia Angelova, and Ivo Grabchev. "Self-Associated 1,8-Naphthalimide as a Selective Fluorescent Chemosensor for Detection of High pH in Aqueous Solutions and Their Hg2+ Contamination." Sensors 23, no. 1 (2022): 399. http://dx.doi.org/10.3390/s23010399.

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A novel diamino triazine based 1,8-naphthalimide (NI-DAT) has been designed and synthesized. Its photophysical properties have been investigated in different solvents and its sensory capability evaluated. The fluorescence emission of NI-DAT is significantly impacted by the solvent polarity due to its inherent intramolecular charge transfer character. Moreover, the fluorescence emission quenched at higher pH as a result of photo-induced electron transfer (PET) from triazine moiety to 1,8-naphthalimide after cleaving hydrogen bonds in the self-associated dimers. Furthermore, the new chemosensor

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39

Gabr, Ibrahim, Tripathi, and Prabhakar. "A Coumarin-Benzothiazole Derivative as a FRET-Based Chemosensor of Adenosine 5′-Triphosphate." Chemosensors 7, no. 3 (2019): 34. http://dx.doi.org/10.3390/chemosensors7030034.

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A coumarin-benzothiazole ratiometric probe of ATP was designed and synthesized. The probe is based on incorporation of benzothiazole scaffold as a donor and coumarin nucleus as an acceptor in a single Förster resonance energy transfer/fluorescence resonance energy transfer (FRET) sensing platform. The sensor can detect ATP in aqueous solution with high selectivity over other nucleotide polyphosphate (NPP) anions. Binding of ATP to the sensor results in modulation of FRET efficiency between the donor and the acceptor which afforded a linear relationship between FRET signal and ATP (0.1–10 μM).

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Wei, Wenguang, Yao Jin, Tao Han, et al. "A Fluorescent Chemosensor for Zn2+ Based on a C3-Symmetrical and Pre-Organized 2,2′,2″-Nitrilotribenzoic Acid Material." Australian Journal of Chemistry 71, no. 11 (2018): 890. http://dx.doi.org/10.1071/ch18308.

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A C3-symmetrical 4,4″,4⁗-nitrilotris(2′-methyl-[1,1′-biphenyl]-3-carboxylic acid) (4) derived from nitrilotriacetic acid (NTA) was found to selectively bind Zinc(ii) ions both in DMSO or MeOH. A synergistic effect of the anionic counter ion SO42− on the sensing behaviour of 4 to metal ions was clearly observed in DMSO. Interestingly, 4 showed a rapid hypochromatic shift in emission ascribed to the deprotonation and the concomitant formation of a 4–metal complex upon the addition of Zn2+ ions, instead of the bathochromic shift and emission enhancement attributed to the SO42−-involved hydrogen-b

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Akbar, Wasseem, Bashir Ahmed, Erum Gull Naz, Purvee Bhardwaj, Imtiaz Ahmad Shah та Masood Ayoub Kaloo. "D-π-A based Diaminomalenonitrile Imine Compounds as Sensors: From Ion Recognition to Logic Arithmetic Applications". Asian Journal of Chemistry 36, № 8 (2024): 1731–40. http://dx.doi.org/10.14233/ajchem.2024.31914.

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In this review article, exciting highlights on highly π-conjugated (π-D-A) 2,3-diaminomaleonitrile (DAMN) based imines or Schiff base chemosensors have been reviewed and discussed. Owing to the typical free -NH2 anion recognition site and 1,2-ethylenediamine based chelating structure, both anion and cation sensing has been achieved with such designed molecules. It has been found that ion interactions strongly alter the electronic push-pull and hence intramolecular charge transfer (ICT) properties across the molecular system. So far such molecular recognition strategy has successfully detected

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Pramanik, Chandana. "A Novel Phenolate-Thiadiazolyl Based Carbonate Sensor: Design, Synthesis and Characterization." Asian Journal of Chemistry 37, no. 1 (2024): 229–36. https://doi.org/10.14233/ajchem.2025.33168.

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A highly selective and sensitive phenolate-thiadiazolyl based colorimetric as well as fluorometric chemosensor (E)-2-(((5-(2-chlorophenyl)-1,3,4-thiadiazol-2-yl)imino)methyl)-6-ethoxy phenol (HL) has been designed and synthesized by Schiff base reaction. This probe has been characterized by spectroscopic techniques such as NMR (1H), ESI-MS and IR spectroscopy. This probe, HL can detect selectively carbonate anion in tris-HCl buffer solution (10 mM, pH 7.2, 1:1 v/v) medium by colorimetric and fluorometric method. The limit of detection of the probe towards carbonate is 0.435 µM. The 1:1 stoichi

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Ugboya, Aikohi, Khristal Monroe, Unodinma Ofulue, et al. "Exploring the Effects of Various Polymeric Backbones on the Performance of a Hydroxyaromatic 1,2,3-Triazole Anion Sensor." Sensors 20, no. 10 (2020): 2973. http://dx.doi.org/10.3390/s20102973.

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Polymeric chemosensors are vital sensing tools because of higher sensitivity compared to their monomeric counterparts and tunable mechanical properties. This study focuses on the incorporation of a hydroxyaromatic 1,2,3-triazole sensor, 2-(4-phenyl 1H-1,2,3-triazol-1-yl)phenol (PTP), into polymers. By itself, the triazole has a selective, fluorometric response to the fluoride, acetate, and dihydrogen phosphate anions, and is most responsive to fluoride. Current investigations probe the suitability of various polymeric backbones for the retention and enhancement of the triazole’s sensing capabi

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Afshar, Sepideh Saberi, Ghodsi Mohammadi Ziarani, Fatemeh Mohajer, Alireza Badiei, Siavash Iravani, and Rajender S. Varma. "Synthesis of Fumed-Pr-Pi-TCT as a Fluorescent Chemosensor for the Detection of Cyanide Ions in Aqueous Media." Water 14, no. 24 (2022): 4137. http://dx.doi.org/10.3390/w14244137.

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In this research, fumed silica scaffolds modified via treatment with (3-chloropropyl)-triethoxysilane, piperazine, and trichlorotriazine groups were deployed for the specific detection of cyanide ions, thus paving the way for the detection of environmental hazards and pollutants with high specificity. Fumed-propyl -piperazine-trichlorotriazine (fumed-Pr-Pi-TCT) was synthesized in three steps starting from fume silica. It was functionalized subsequently using 3-(choloropropyl)-trimethoxysilane, piperazine, and trichlorotriazine, and then, the product was characterized through several methods in

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Helal, Aasif, Md Eyasin Arafat, and Mohammad Mizanur Rahman. "Pyridinyl Conjugate of UiO-66-NH2 as Chemosensor for the Sequential Detection of Iron and Pyrophosphate Ion in Aqueous Media." Chemosensors 8, no. 4 (2020): 122. http://dx.doi.org/10.3390/chemosensors8040122.

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A new chemosensor UiO-66-N-Py (Py = 2-methinepyridine, N = imine nitrogen) based on isoreticular UiO-66 (University of Oslo) Metal–Organic Framework (MOF) containing 2-methinepyridine functionalized organic linker was solvothermally synthesized and characterized. This UiO-66-N-Py was very selective and sensitive for detecting the Fe3+ ion and sequential detection of the pyrophosphate (PPi) anion. The limits of detection for the Fe3+ ion and PPi were calculated to be 10 ppb (0.19 μM) and 50 ppb (0.3 μM), respectively. The quenching constant Ksv for Fe3+ and the binding constant for PPi were 1.4

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Golcs, Ádám, Korinna Kovács, Panna Vezse, Tünde Tóth, and Péter Huszthy. "Acridino-Diaza-20-Crown-6 Ethers: New Macrocyclic Hosts for Optochemical Metal Ion Sensing." Molecules 26, no. 13 (2021): 4043. http://dx.doi.org/10.3390/molecules26134043.

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Acridino-diaza-20-crown-6 ether derivatives as new turn-on type fluorescent chemosensors with an excellent functionality and photophysical properties have been designed and synthesized for metal ion-selective optochemical sensing applications. Spectroscopic studies revealed that in an acetonitrile-based semi-aqueous medium, the sensor molecules exhibited a remarkable fluorescence enhancement with high sensitivity only toward Zn2+, Al3+ and Bi3+, among 23 different metal ions. Studies on complexation showed a great coordinating ability of logK > 4.7 with a 1:1 complex stoichiometry in each c

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Patra, Chiranjit, Anup Kumar Bhanja, Ambikesh Mahapatra, Snehasis Mishra, Krishna Das Saha, and Chittaranjan Sinha. "Coumarinyl thioether Schiff base as a turn-on fluorescent Zn(ii) sensor and the complex as chemosensor for the selective recognition of ATP, along with its application in whole cell imaging." RSC Advances 6, no. 80 (2016): 76505–13. http://dx.doi.org/10.1039/c6ra12369d.

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A Zn<sup>2+</sup> sensor, coumarinyl thioether Schiff base shows the LOD 0.068 μM. The fluorogenic complex, [ZnL] recognizes ATP in presence of other anions and the LOD, 6.7 μM, is the lowest in literature. Ligand is used for fluorescence cell imaging process.

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Duke, Rebecca M., Emma B. Veale, Frederick M. Pfeffer, Paul E. Kruger, and Thorfinnur Gunnlaugsson. "Colorimetric and fluorescent anion sensors: an overview of recent developments in the use of 1,8-naphthalimide-based chemosensors." Chemical Society Reviews 39, no. 10 (2010): 3936. http://dx.doi.org/10.1039/b910560n.

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Kaji, Izumi, Yukiko Yasuoka, Shin-ichiro Karaki, and Atsukazu Kuwahara. "Activation of TRPA1 by luminal stimuli induces EP4-mediated anion secretion in human and rat colon." American Journal of Physiology-Gastrointestinal and Liver Physiology 302, no. 7 (2012): G690—G701. http://dx.doi.org/10.1152/ajpgi.00289.2011.

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In gastrointestinal (GI) physiology, anion and fluid secretion is an important function for host defense and is induced by changes in the luminal environment. The transient receptor potential A1 (TRPA1) channel is considered to be a chemosensor in several sensory tissues. Although the function of TRPA1 has been studied in GI motility, its contribution to the transepithelial ion transport system has rarely been discussed. In the present study, we investigated the secretory effect of the potential TRPA1 agonist allyl isothiocyanate (AITC) in rat and human colon using an Ussing chamber. The mucos

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Alizadeh, Abdolhamid, Sohrab Ghouzivand, Mohammad M. Khodaei, and Mehdi Ardalani. "An interesting spectroscopic method for chromofluorogenic detection of cyanide ion in aqueous solution: Disruption of intramolecular charge transfer (ICT)." Journal of Chemical Sciences 128, no. 4 (2016): 537–43. https://doi.org/10.1007/s12039-016-1051-y.

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5-[4-(dimethylamino)benzylidene) pyrimidine-2,4,6(1H,3H,5H)]-trione (DMP-3H), the receptor was synthesized which played a chemosensor role for cyanide ion (CN−) in aqueous solution with colorimetric and fluorescence turn-off responses. Upon addition of CN− ion into the solution containing the receptor, a color change visible to the naked eye was observed from yellow to colourless and also, the fluorescence of the solution was immediately quenched. Moreover, DMP-3H exhibited a selective response to cyanide ion over many other anions such as F−, Cl−, Br−, I−,

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