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Journal articles on the topic 'Acid-base sensor'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Jia Yam, Ng, Arjulizan Rusli, Zuratul Ain Abdul Hamid, Muhammad Khalil Abdullah, and Ku Ishak Ku Marsilla. "Halochromic poly (lactic acid) film for acid base sensor." Journal of Applied Polymer Science 138, no. 13 (2020): 50093. http://dx.doi.org/10.1002/app.50093.

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2

Olthuis, W., B. H. Van Der Schoot, F. Chavez, and P. Bergveld. "A dipstick sensor for coulometric acid-base titrations." Sensors and Actuators 17, no. 1-2 (1989): 279–83. http://dx.doi.org/10.1016/0250-6874(89)80092-7.

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3

Roa, Jinae N., and Martin Tresguerres. "Soluble adenylyl cyclase is an acid-base sensor in epithelial base-secreting cells." American Journal of Physiology-Cell Physiology 311, no. 2 (2016): C340—C349. http://dx.doi.org/10.1152/ajpcell.00089.2016.

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Blood acid-base regulation by specialized epithelia, such as gills and kidney, requires the ability to sense blood acid-base status. Here, we developed primary cultures of ray ( Urolophus halleri) gill cells to study mechanisms for acid-base sensing without the interference of whole animal hormonal regulation. Ray gills have abundant base-secreting cells, identified by their noticeable expression of vacuolar-type H+-ATPase (VHA), and also express the evolutionarily conserved acid-base sensor soluble adenylyl cyclase (sAC). Exposure of cultured cells to extracellular alkalosis (pH 8.0, 40 mM HC

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4

Smyth, Ciarán, King Tong Lau, Roderick L. Shepherd, et al. "Self-maintained colorimetric acid/base sensor using polypyrrole actuator." Sensors and Actuators B: Chemical 129, no. 2 (2008): 518–24. http://dx.doi.org/10.1016/j.snb.2007.08.050.

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5

Rehovskaya, E. O., and I. Yu Nagibina. "NEW SENSOR MATERIALS FOR ENVIRONMENTAL MONITORING IN INDUSTRY." DYNAMICS OF SYSTEMS, MECHANISMS AND MACHINES 12, no. 2 (2024): 94–96. https://doi.org/10.25206/2310-9793-2024-12-2-94-96.

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Using a set of modern methods, the acid-base and adsorption (relative to NH3) properties of semiconductor compounds have been studied in detail. Ammonia has been selected as the most toxic gas component of emissions in the air of the working area at enterprises of the chemical and petrochemical industries. Binary and multicomponent systems of cadmium sulfide and zinc telluride were selected as the objects of study. For the samples subjected to the study, after determining the acid-base properties, parallels were drawn in the patterns of their changes with the composition. Practical recommendat

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Mirzavand, Rashid, Mohammad Honari, Bahareh Laribi, Behnam Khorshidi, Mohtada Sadrzadeh, and Pedram Mousavi. "An Unpowered Sensor Node for Real-Time Water Quality Assessment (Humic Acid Detection)." Electronics 7, no. 10 (2018): 231. http://dx.doi.org/10.3390/electronics7100231.

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A zero-power microwave sensor is reported for the real-time assessment of water quality. The proposed structure is able to transmit sensed data directly to a base-station without additional data processing at the wireless sensor node (WSN) which results in less power consumption. The base-station propagates a single tone signal at the frequency of f0/2. At the sensing node, an antenna absorbs that signal and a passive frequency doubler makes its frequency twice, i.e., f0, which will be used as the carrier signal. Two pairs of open-ended coaxial probes are used as liquid sensors; one inside a k

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7

Efanov, S. A., T. N. Kudryavtseva, E. V. Grekhneva, and E. A. Dorofeeva. "Textile-based indicator for acid-base titration." Industrial laboratory. Diagnostics of materials 91, no. 3 (2025): 11–15. https://doi.org/10.26896/1028-6861-2025-91-3-11-15.

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In the present work, textile halochromic materials were obtained, which were tested as indicators of acid-base titration. Textile materials were obtained by functionalization of cotton fabric with halochromic disazo derivatives of 4,4’-diaminostilbene-2,2’-disulfonic acid using direct dyeing technology. Rectangular fragments of halochromic textile material, 20 by 20 mm in size, were placed directly into the titrated solution. The range of color change and the rate of its change were studied in the process of potentiometric titration of sodium hydroxide, sodium bicarbonate and tap water. Testin

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8

Potărniche, Ioana-Adriana, Julia Marín-Sáez, M. Victoria Collados, and Jesús Atencia. "Holographic Sensor Based on Bayfol HX200 Commercial Photopolymer for Ethanol and Acetic Acid Detection." Sensors 23, no. 21 (2023): 8776. http://dx.doi.org/10.3390/s23218776.

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This paper presents a holographic sensor based on reflection holograms recorded in the commercial photopolymer Bayfol® HX 200. The recording geometry and index modulation of the hologram were optimised to improve accuracy for this specific application. The sensor was subjected to tests using various analytes, and it exhibited sensitivity to acetic acid and ethanol. The measurements revealed a correlation between the concentration of the analyte in contact with the sensor’s surface and the resulting wavelength shift of the diffracted light. The minimum detectable concentrations were determined

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9

Sukhanov, Alexey, Anastasia Ovsyannikova, Natalya Gavrilenko, and Nadezhda Saranchina. "Polymethacrylate Matrix with Immobilized Acid–Base Indicators as pH Sensor." Procedia Engineering 168 (2016): 477–80. http://dx.doi.org/10.1016/j.proeng.2016.11.134.

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10

Cho, Hui Hun, Si Hyun Kim, Jun Hyuk Heo, et al. "A one-step colorimetric acid–base titration sensor using a complementary color changing coordination system." Analyst 141, no. 12 (2016): 3890–97. http://dx.doi.org/10.1039/c6an00744a.

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11

Al-Mayouf, Abdullah M., and Matar N. Al-Shalwi. "Galvanic Sensor for Detecting Corrosion during Acid Cleaning of Magnetite in Steam Boilers." Metals 11, no. 2 (2021): 343. http://dx.doi.org/10.3390/met11020343.

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A simple galvanic sensor was developed to determine the onset of iron corrosion under conditions similar to those used for removing the iron oxide (magnetite) layer from steam boilers with a hy-drochloric acid solution. Since the potentials of magnetite and iron are different, the initiation of the dissolution of the magnetite layer without corroding the base metal can be determined by moni-toring the potential of a sensor made of magnetite layers of different thicknesses that can be placed directly on the iron surface. Moreover, the time at which the addition of corrosion inhibitors is requir

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12

Zhang, Hongyi. "Optimization of Electrochemical Sensors and Their Application in CO2 Detection." Transactions on Materials, Biotechnology and Life Sciences 4 (August 29, 2024): 25–30. http://dx.doi.org/10.62051/m8ww7q92.

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In response to the increasing global greenhouse gas content, electrochemical sensors with the advantages of existing main detection methods have the problem of being very sensitive to temperature, and long-term exposure to greenhouse gases will seriously affect the service life. From the aspects of sensitivity, selectivity, internal structure and working principle, this research points out the research progress of existing electrochemical sensors for detecting carbon dioxide (CO2), which consist of ionic liquid base, solid polymer electrolyte, room temperature fluorinated anionic liquid and bo

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13

Dhara, Koushik, Krishanu Sarkar, Partha Roy, Mahasweta Nandi, Asim Bhaumik, and Pradyot Banerjee. "A highly enantioselective chiral Schiff-base fluorescent sensor for mandelic acid." Tetrahedron 64, no. 14 (2008): 3153–59. http://dx.doi.org/10.1016/j.tet.2008.01.099.

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14

Cruz Moreno, M., Mercedes Jiménez, Concepción Pérez Conde, and Carmen Cámara. "Analytical performance of an optical pH sensor for acid-base titration." Analytica Chimica Acta 230 (1990): 35–40. http://dx.doi.org/10.1016/s0003-2670(00)82758-0.

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15

Duykova, M. V., S. E. Shkonda, S. A. Kazakov, and M. A. Grevtsev. "MANUFACTURING AND RESEARCH OF METAL OXIDE SEMICONDUCTOR GAS SENSORS FOR AMMONIA." NAUCHNOE PRIBOROSTROENIE 30, no. 4 (2020): 52–62. http://dx.doi.org/10.18358/np-30-4-i5262.

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Ammonia-sensitive materials based on tin dioxide have been developed and synthesized. The degree of structural defects was evaluated, and the acid-base surface centers of synthesized materials were studied using the indicator method. The relationship between the chemisorption properties of synthesized gas-sensitive sensor layers (gas response to the concentration effect of ammonia) and the structure of the sensor material is discovered and analyzed. The novelty of the research is the integrated approach presented in this paper to the creation, development and manufacture of sensors for ammonia

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Iswahyudi, Prasetyo, and Maulana Anifa Silvia. "Sistem Kontrol Dan Monitoring Kualitas Ph Air Pada Ground Tank Berbasis Mikrokontroller Di Bandar Udara Tjilikriwut Palangkaraya." JOURNAL ZETROEM 6, no. 2 (2024): 62–66. https://doi.org/10.36526/ztr.v6i2.4149.

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Abstract – The centralized water pH quality monitoring control system uses a microcontroller as the control center and program. By using theoretical basics regarding relays, microcontrollers and other electronic components, the author designed a centralized monitoring control system using a computer HMI (Human Machine Interface) as a display with a pH sensor for each water quality situation. The pH sensor is an analog data reader, where the reading results will be processed by the microcontroller which will then activate the relays so that the acid-base solution pump is active when the water p

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17

Zhan, Shun-Ze, Xia Jiang, Ji Zheng, Xin-Da Huang, Guang-Hui Chen, and Dan Li. "A luminescent supramolecular Cu2I2(NH3)2-sandwiched Cu3(pyrazolate)3 adduct as a temperature sensor." Dalton Transactions 47, no. 11 (2018): 3679–83. http://dx.doi.org/10.1039/c8dt00069g.

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A highly luminescent supramolecular Cu<sub>2</sub>I<sub>2</sub>(NH<sub>3</sub>)<sub>2</sub>-sandwiched Cu<sub>3</sub>(pyrazolate)<sub>3</sub> π-acid⋯base adduct, stabilized by intermolecular Cu<sub>3</sub>⋯I (π-acid⋯base), Cu⋯Cu and N⋯H interactions, is reported as a temperature sensor in a wide range.

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18

Ramadoss, Tamil Selvan, Yuya Ishii, Amutha Chinnappan, Marcelo H. Ang, and Seeram Ramakrishna. "Fabrication of Pressure Sensor Using Electrospinning Method for Robotic Tactile Sensing Application." Nanomaterials 11, no. 5 (2021): 1320. http://dx.doi.org/10.3390/nano11051320.

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Tactile sensors are widely used by the robotics industries over decades to measure force or pressure produced by external stimuli. Piezoelectric-based pressure sensors have intensively been investigated as promising candidates for tactile sensing applications. In contrast, piezoelectric-based pressure sensors are expensive due to their high cost of manufacturing and expensive base materials. Recently, an effect similar to the piezoelectric effect has been identified in non-piezoelectric polymers such as poly(d,l-lactic acid (PDLLA), poly(methyl methacrylate) (PMMA) and polystyrene. Hence inves

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19

Pei, Yu, Yan Sun, and Dongxia Zhu. "Phosphorescent Sensor Based on Iridium(III) Complex with Aggregation-Induced Emission Activity for Facile Detection of Volatile Acids." Molecules 29, no. 24 (2024): 6041. https://doi.org/10.3390/molecules29246041.

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Phosphorescent sensors are essential for rapid visual sensing of volatile acids, due to their profound impact on ecosystems and human health. However, solid phosphorescent materials for acid-base stimulus response are still rare, and it is important to achieve real-time monitoring of volatile acids. In order to obtain an efficient and rapid response to volatile acid stimulation, N-H and -NH2 substituents are introduced into an auxiliary ligand to synthesize a new cationic Ir(III) complex (Ir-NH). The AIE property of Ir-NH leads to enhanced emission in the aggregated state, which facilitates th

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20

Frenette, Mathieu, Marius Gabriel Ivan, and J. C. Scaiano. "Use of fluorescent probes to determine catalytic chain length in chemically amplified resists." Canadian Journal of Chemistry 83, no. 6-7 (2005): 869–74. http://dx.doi.org/10.1139/v05-090.

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Acid-catalyzed deprotection of tert-butoxycarbonyl (t-Boc) pendant groups present in a polymer film is one of the most common chemical reactions in photolithography. We present here a novel method to determine the catalytic chain length of this reaction under different development conditions. We demonstrate this in model PMMA thin films containing triphenylsulphonium triflate as a photoacid generator, acid sensor coumarin 6, t-Boc protected coumarin 4, and base 2-piperidin-1-yl-ethanol (2-PE). Deprotection of the t-Boc group, catalyzed by the photogenerated acid, during the post-exposure bake

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21

Li, Dan, Guangfu Li, Weilong Che, Dongxia Zhu, and Zhongmin Su. "A remarkable phosphorescent sensor for acid–base vapours based on an AIPE-active Ir(iii) complex." Dalton Transactions 48, no. 6 (2019): 1955–59. http://dx.doi.org/10.1039/c8dt04681f.

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22

Appiagyei, Alfred Bekoe, and Jeong In Han. "Potentiometric Performance of a Highly Flexible-Shaped Trifunctional Sensor Based on ZnO/V2O5 Microrods." Sensors 21, no. 7 (2021): 2559. http://dx.doi.org/10.3390/s21072559.

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A trifunctional flexible sensor was fabricated on a polyethylene terephthalate (PET) fiber surface. Synthesized ZnO and ZnO/V2O5 composite were coated on ZnO seed layer sputtered PET fiber. X-ray diffraction (XRD) and photoelectron spectroscopy (XPS) techniques confirmed the exact formation of ZnO and ZnO/V2O5. The fabricated ZnO/V2O5 on ZnO seeds base temperature sensor recorded better electrical properties and reversibility with a maximum temperature coefficient resistance (TCR) of 0.0111 °C−1. A calibration curve (R = 0.9941) within glucose concentration of (10 µM–10 mM) was obtained at +0.

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23

Tresguerres, M., S. K. Parks, E. Salazar, L. R. Levin, G. G. Goss, and J. Buck. "Bicarbonate-sensing soluble adenylyl cyclase is an essential sensor for acid/base homeostasis." Proceedings of the National Academy of Sciences 107, no. 1 (2009): 442–47. http://dx.doi.org/10.1073/pnas.0911790107.

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24

Наумова, О. В., Б. И. Фомин, Е. В. Дмитриенко, И. А. Пышная та Д. В. Пышный. "Модификация поверхности КНИ-сенсоров для детекции РНК-биомаркеров". Физика и техника полупроводников 54, № 4 (2020): 394. http://dx.doi.org/10.21883/ftp.2020.04.49147.9271.

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Abstract A new type of surface modification of multichannel sensors on a silicon-on-insulator base, which includes the use of a carbonyldiimidazole bifunctional reagent for the formation of an interfacial layer instead of modified silanes and probes for the specific detection of fragments of matrix troponin ribonucleic acid (analyte) as a marker of the cardiac infarction, is proposed. The influence of passivating the sensor surface activated by carbonyldiimidazole with glycine and aminoethanol at the final modification state on the response of sensors and the level of the background signal is

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25

Elamathi, C., R. J. Butcher, A. Mohankumar, et al. "Dual sensing of methionine and aspartic acid in aqueous medium by a quinoline-based fluorescent probe." Dalton Transactions 50, no. 25 (2021): 8820–30. http://dx.doi.org/10.1039/d1dt00648g.

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A quinoline-based Schiff base sensor (6MPS) has been developed for the selective sensing of methionine and aspartic acid in aqueous medium in both in vitro and in vivo live cells through “on–off–on” type selective detection of copper ion.

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26

Cui, Shiqiang, Yongjuan Tang, and Shouzhi Pu. "A highly selective fluorescent sensor for Al3+ based on a new diarylethene with a 3-hydroxy-2-naphthohydrazide unit." RSC Advances 6, no. 88 (2016): 84592–98. http://dx.doi.org/10.1039/c6ra18068j.

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A novel diarylethene with a 3-hydroxy-2-naphthohydrazide unit was synthesized. It exhibited multi-responsive properties when triggered by lights, base/acid and metal ions. Moreover, the diarylethene could be used as a fluorescent sensor for Al<sup>3+</sup>.

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27

Patel, Vinay, Peter Kruse, and P. Ravi Selvaganapathy. "An Electropolymerized Self Assembled Monolayer of Crystal Violet for Chemiresistive Hydrogen Peroxide Sensor." ECS Meeting Abstracts MA2021-02, no. 57 (2021): 1919. http://dx.doi.org/10.1149/ma2021-02571919mtgabs.

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Chemiresistive sensors have been widely used for gas sensing but recently few studies have reported their use in liquids. Unlike electrochemical sensors, these sensors are simple to fabricate and operate with a single sensing film electrodes with two electrical contacts for monitoring change in current under a small potential bias, without the need of reference electrode. Hydrogen peroxide (H2O2) is an intermediate molecule generated in numerous peroxidase assays. Therefore, it is widely used for detecting multiple biomolecules like glucose, galactose etc. H2O2 detection is commonly performed

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28

Kochemirovskaya, Svetlana V., Maxim O. Novomlinsky, Alena A. Fogel, and Vladimir A. Kochemirovsky. "Laser synthesis of nanomaterials to create a new family of electrochemical microbiosensors." Pharmacy Formulas 2, no. 3 (2020): 74–88. http://dx.doi.org/10.17816/phf41941.

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A brief review of modern methods for creating materials for enzymeless microbiosensors intended for express analysis of the content of components of biological fluids, including human blood, has been made. New directions of the synthesis of such materials have been described: laser ablation (PLD) and laser-induced deposition (LCLD). The comparison of laser methods for the synthesis of materials of non-enzymatic microbiosensors with the known methods for creating nanostructured materials has been carried out. Using bimetallic LCLD microtracks as an example, the mechanism of enhancing the electr

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29

dos Santos, Giovanny Carvalho, Julia Lopes Rodrigues, Vitor Fernandes Moreno, and Luiz Carlos da Silva-Filho. "Environmental effects in nitroquinoline derivatives solutions: Solvatochromism, acid-base effect and ion-sensor investigation." Journal of Molecular Structure 1235 (July 2021): 130260. http://dx.doi.org/10.1016/j.molstruc.2021.130260.

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30

Laffitte, Yohan, and Bonnie L. Gray. "Potentiometric pH Sensor Based on Flexible Screen-Printable Polyaniline Composite for Textile-Based Microfluidic Applications." Micromachines 13, no. 9 (2022): 1376. http://dx.doi.org/10.3390/mi13091376.

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Skin pH can be used for monitoring infections in a healing wound, the onset of dermatitis, and hydration in sports medicine, but many challenges exist in integrating conventional sensing materials into wearable platforms. We present the development of a flexible, textile-based, screen-printed electrode system for biosensing applications, and demonstrate flexible polyaniline (PANI) composite-based potentiometric sensors on a textile substrate for real-time pH measurement. The pH response of the optimized PANI/dodecylbenzene sulfonic acid/screen-printing ink composite is compared to electropolym

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31

Clausen, Tobias, Ahmad Khaldi, Alois Zauner, et al. "Cerebral acid—base homeostasis after severe traumatic brain injury." Journal of Neurosurgery 103, no. 4 (2005): 597–607. http://dx.doi.org/10.3171/jns.2005.103.4.0597.

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Object. Brain tissue acidosis is known to mediate neuronal death. Therefore the authors measured the main parameters of cerebral acid—base homeostasis, as well as their interrelations, shortly after severe traumatic brain injury (TBI) in humans. Methods. Brain tissue pH, PCO2, PO2, and/or lactate were measured in 151 patients with severe head injuries, by using a Neurotrend sensor and/or a microdialysis probe. Monitoring was started as soon as possible after the injury and continued for up to 4 days. During the 1st day following the trauma, the brain tissue pH was significantly lower, compared

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32

Erfkamp, Jan, Margarita Guenther, and Gerald Gerlach. "Piezoresistive Hydrogel-Based Sensors for the Detection of Ammonia." Sensors 19, no. 4 (2019): 971. http://dx.doi.org/10.3390/s19040971.

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Ammonia is an essential key compound in the chemical industry. However, excessively high ammonia concentrations can be harmful to the environment. Sensors for the detection of ammonia are therefore particularly important for environmental analysis. In this article, a novel hydrogel-based piezoresistive ammonia sensor is presented. In aqueous solution, ammonia reacts as a base. This alkaline pH change can be detected with stimuli-sensitive hydrogels. For such an application, highly sensitive hydrogels in the alkaline range with sufficient mechanical stability for the sensor application has to b

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33

Tavares, Cátia, Daniela Real, Maria de Fátima Domingues, Nélia Alberto, Hugo Silva, and Paulo Antunes. "Sensor Cell Network for Pressure, Temperature and Position Detection on Wheelchair Users." International Journal of Environmental Research and Public Health 19, no. 4 (2022): 2195. http://dx.doi.org/10.3390/ijerph19042195.

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This work proposes an optical sensing network to monitor pressure and temperature in specific areas of a wheelchair to prevent pressure ulcers and to monitor the position of the wheelchair user by analyzing its pressure distribution. The sensing network is composed of six optical fiber Bragg grating (FBG)-based sensor cells. Each sensor cell is built from a polylactic acid (PLA) base and has two FBGs, one embedded in epoxy resin to monitor pressure variations (FBGP) and another without resin to monitor temperature (FBGT). Once produced, all sensor cells were experimentally characterized for pr

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34

Nelson, Anna M., Sanaz Habibi, John O. L. DeLancey, James A. Ashton-Miller, and Mark A. Burns. "Electrochemical Sensing of Urinary Chloride Ion Concentration for Near Real-Time Monitoring." Biosensors 13, no. 3 (2023): 331. http://dx.doi.org/10.3390/bios13030331.

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Urinary chloride concentration is a valuable health metric that can aid in the early detection of serious conditions, such as acid base disorders, acute heart failure, and incidences of acute renal failure in the intensive care unit. Physiologically, urinary chloride levels frequently change and are difficult to measure, involving time-consuming and inconvenient lab testing. Thus, near real-time simple sensors are needed to quickly provide actionable data to inform diagnostic and treatment decisions that affect health outcomes. Here, we introduce a chronopotentiometric sensor that utilizes com

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35

Joseph, Teena, Jasmine Thomas, Tony Thomas, and Nygil Thomas. "Engineering Low Cost ZnO/RGO Nanocomposite for the Picomolar Sensing of Epinephrine, Uric Acid and Tyrosine." Journal of The Electrochemical Society 168, no. 11 (2021): 117509. http://dx.doi.org/10.1149/1945-7111/ac334b.

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This paper demonstrates a highly sensitive, selective, biocompatible and cost-effective method for the simultaneous determination of Epinephrine (EPN), Uric acid (UA) and Tyrosine (TYR). Superior electrochemical performance was achieved using ZnO/RGO/CPE modified electrodes compared to individual components, graphene oxide (GO) and ZnO modified electrodes. The electrochemical activity of the fabricated sensor is examined through cyclic voltammetry (CV), differential pulse voltammetry (DPV) and chronoamperometry (CA). A sharp increase in anodic peak current and negative shift in the electrode p

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., Aaryashree, Ashish Kumar Choudhary, Akihiko Hatano, and Yasuo Yoshimi. "(Digital Presentation) A Disposable Chip Sensor for the Detection of Vancomycin: Studying the Long-Term Stability." ECS Meeting Abstracts MA2022-02, no. 61 (2022): 2236. http://dx.doi.org/10.1149/ma2022-02612236mtgabs.

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Vancomycin is one of the most important anti-bacterial drugs for the treatment of MRSA infection. Continuous monitoring is commonly recommended as it has a low therapeutic window, which is often limited by the equipment cost, and the technical skills required for modern TDM techniques such as HP-LCs and immunoassays. As a result, a cost-effective and quick detection solution for Vancomycin TDM is critical. We have already reported a successful vancomycin sensor on a ceramic base, a paper base, and a PET (polyethylene terephthalate) base, in our previous works 1,2. However, the long-term stabil

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37

Stanić, Zorka, Jelena Stepanović та Zoran Simić. "Arsenopyrite mineral based electrochemical sensor for acid–base titrations in γ-butyrolactone and propylene carbonate". Monatshefte für Chemie - Chemical Monthly 143, № 1 (2011): 1–6. http://dx.doi.org/10.1007/s00706-011-0567-6.

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38

Sun, Peng, Yongxin Cong, Ming Xu, Huaqing Si, Dan Zhao, and Dongping Wu. "An ISFET Microarray Sensor System for Detecting the DNA Base Pairing." Micromachines 12, no. 7 (2021): 731. http://dx.doi.org/10.3390/mi12070731.

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Deoxyribonucleic acid (DNA) sequencing technology provides important data for the disclosure of genetic information and plays an important role in gene diagnosis and gene therapy. Conventional sequencing devices are expensive and require large and bulky optical structures and additional fluorescent labeling steps. Sequencing equipment based on a semiconductor chip has the advantages of fast sequencing speed, low cost and small size. The detection of DNA base pairing is the most important step in gene sequencing. In this study, a large-scale ion-sensitive field-effect transistor (ISFET) array c

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39

Santonocito, Rossella, Nunzio Tuccitto, Andrea Pappalardo, and Giuseppe Trusso Sfrazzetto. "Smartphone-Based Dopamine Detection by Fluorescent Supramolecular Sensor." Molecules 27, no. 21 (2022): 7503. http://dx.doi.org/10.3390/molecules27217503.

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Supramolecular recognition of dopamine by two quinoxaline cavitands was studied in solution by fluorescence titrations, ESI-MS and ROESY measurements. In addition, the tetraquinoxaline cavitand was dropped onto a siloxane-based polymeric solid support, obtaining a sensor able to detect dopamine in a linear range of concentrations 10 Mm–100 pM, with a detection limit of 1 pM, much lower than the normal concentration values in the common human fluids (plasma, urine and saliva), by using a simple smartphone as detector. This sensor shows also good selectivity for dopamine respect to the other com

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Vretzakis, Papadimitriou, Stylianos Koutsias, et al. "Kontinuierliches kontralaterales Säure-, Basen- und Blutgas Monitoring während Karotis-Endarterektomie." Vasa 29, no. 3 (2000): 221–24. http://dx.doi.org/10.1024/0301-1526.29.3.221.

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Background: The aim of this study is to evaluate the intravascular multiparameter sensor Paratrend 7 (P7) for continuous acid-base and blood gas monitoring after retrograde jugular catheterization during carotid endarterectomy. Patients and methods: We studied 11 patients with history of smoking (72.7%), coronary artery disease (72.7%), hypertension (100%), diabetes mellitus (55.5%) and TIA’s and/or nondisabling stroke (90.9%). The contralateral internal jugular vein was punctured retrogradely and the calibrated P7 sensor was introduced. The sensor was removed after surgery. The P7 provides co

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Abu Ghalwa, Nasser. "Development of a Novel Solid-State Sensor Electrode Based on Titanium Thin Film as an Indicator Electrode in Potentiometric and Conductometric Acid-Base Titration in Aqueous Solution." Journal of Sensors 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/681826.

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A modified Ti/(SnO2+ Sb2O3) electrode was prepared by thermal deposition on titanium substrate and its use as indicator electrode to potentiometric and conductometric acid-base titration in aqueous solution at 298 K was developed. The E-pH curve is linear with slope of 0.0512 V/dec at 298 K. The standard potential of this electrode,E0, was determined with respect to the SCE as reference electrode. The recovery percentages for potentiometric and conductometric acid-base titration for acetic acid against NaOH were calculated. The cell constant, specific conductance, and the molar conductance wit

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Noroozi, Mohammad, and Hassan Keypour. "Novel mefenamic acid PVC membrane sensor based on a new Cd Schiff's base complex containing a phenanthroline unit." RSC Advances 7, no. 62 (2017): 39118–26. http://dx.doi.org/10.1039/c7ra06821b.

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In this study, a PVC membrane electrode modified with a Cd Schiff base complex was constructed as a novel, sensitive and selective structured carrier for checking trace amounts of mefenamic acid in real samples.

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Patil, Anilkumar R., Lokesh A. Shastri, T. S. Tilakraj, et al. "Synthesis and characterization of acid-base indicator: Exploring pH sensor, photophysical, thermal applications and theoretical study." Journal of Molecular Structure 1254 (April 2022): 132363. http://dx.doi.org/10.1016/j.molstruc.2022.132363.

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Meti, Puttavva, Jung-Won Yang, and Young-Dae Gong. "Structure property relationships of tunable donor-acceptor functionalized dipyrrolopyrazine derivative as selective reversible acid base sensor." Dyes and Pigments 156 (September 2018): 233–42. http://dx.doi.org/10.1016/j.dyepig.2018.03.006.

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Jiang, Junling, Yantong Lu, Jingwen Liu, Yunchun Zhou, Dian Zhao, and Chunxia Li. "An acid-base resistant Zn-based metal-organic framework as a luminescent sensor for mercury(II)." Journal of Solid State Chemistry 283 (March 2020): 121153. http://dx.doi.org/10.1016/j.jssc.2019.121153.

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Ishiguro, Katsuya, Mitsutoshi Ozaki, Nobuyuki Sekine, and Yasuhiko Sawaki. "Acid−Base Equilibrium between Phenoxyl−Nitronyl Nitroxide Biradical and Closed-Shell Cation. A Magnetic pH Sensor." Journal of the American Chemical Society 119, no. 15 (1997): 3625–26. http://dx.doi.org/10.1021/ja963289m.

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Brown, Dennis, Richard Bouley, Teodor G. Pǎunescu, Sylvie Breton, and Hua A. J. Lu. "New insights into the dynamic regulation of water and acid-base balance by renal epithelial cells." American Journal of Physiology-Cell Physiology 302, no. 10 (2012): C1421—C1433. http://dx.doi.org/10.1152/ajpcell.00085.2012.

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Maintaining tight control over body fluid and acid-base homeostasis is essential for human health and is a major function of the kidney. The collecting duct is a mosaic of two cell populations that are highly specialized to perform these two distinct processes. The antidiuretic hormone vasopressin (VP) and its receptor, the V2R, play a central role in regulating the urinary concentrating mechanism by stimulating accumulation of the aquaporin 2 (AQP2) water channel in the apical membrane of collecting duct principal cells. This increases epithelial water permeability and allows osmotic water re

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Chen, Hong, Feng Ding, Zhan Zhou, Xiaojun He, and Jianliang Shen. "FRET-based sensor for visualizing pH variation with colorimetric/ratiometric strategy and application for bioimaging in living cells, bacteria and zebrafish." Analyst 145, no. 12 (2020): 4283–94. http://dx.doi.org/10.1039/d0an00841a.

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Gorczyński, Adam, Maciej Kubicki, Klaudia Szymkowiak, Teresa Łuczak, and Violetta Patroniak. "Utilization of a new gold/Schiff-base iron(iii) complex composite as a highly sensitive voltammetric sensor for determination of epinephrine in the presence of ascorbic acid." RSC Advances 6, no. 104 (2016): 101888–99. http://dx.doi.org/10.1039/c6ra22028b.

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De Vera, Ian Mitchelle S., and Edward T. Chainani. "Low-Cost Laboratory Data Acquisition System Based on the Z8 ENCORE!â„¢ Microcontroller for pH Measurement." KIMIKA 22, no. 2 (2006): 97–104. http://dx.doi.org/10.26534/kimika.v22i2.97-104.

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A pH measurement-auto-titration data acquisition system based on the Z8 Encore!â„¢ Z8F6401 Flash microcontroller was devised with a glass electrode acting as a pH sensor. The data acquisition system allows buffer calibration, pH measurement of samples and the option to perform an automated strong acid-strong base titration via a solenoid pinch valve which actuates the flow of titrant. The results given by the pH measurement system were comparable to that of SartoriusÂ® PB-20 pH meter using t-Test within the pH range 4.00 to 10.00. This can be attributed to the very linear response of the sigma

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