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Journal articles on the topic 'Thiol Sensors'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 September 2023

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1

Xie, Zhenzhen, Mandapati V. Ramakrishnam Raju, Prasadanie K. Adhihetty, Xiao-An Fu, and Michael H. Nantz. "Effect of Thiol Molecular Structure on the Sensitivity of Gold Nanoparticle-Based Chemiresistors toward Carbonyl Compounds." Sensors 20, no. 24 (2020): 7024. http://dx.doi.org/10.3390/s20247024.

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Increasing both the sensitivity and selectivity of thiol-functionalized gold nanoparticle chemiresistors remains a challenging issue in the quest to develop real-time gas sensors. The effects of thiol molecular structure on such sensor properties are not well understood. This study investigates the effects of steric as well as electronic effects in a panel of substituted thiol-urea compounds on the sensing properties of thiolate monolayer-protected gold nanoparticle chemiresistors. Three series of urea-substituted thiols with different peripheral end groups were synthesized for the study and u

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2

Bohli, Nadra, Meryem Belkilani, Juan Casanova-Chafer, Eduard Llobet, and Adnane Abdelghani. "Multiwalled carbon nanotube based aromatic volatile organic compound sensor: sensitivity enhancement through 1-hexadecanethiol functionalisation." Beilstein Journal of Nanotechnology 10 (December 4, 2019): 2364–73. http://dx.doi.org/10.3762/bjnano.10.227.

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Aromatic volatile organic compound (VOC) sensors are attracting growing interest as a response to the pressing market need for sensitive, fast response, low power consumption and stable sensors. Benzene and toluene detection is subject to several potential applications such as air monitoring in chemical industries or even biosensing of human breath. In this work, we report the fabrication of a room temperature toluene and benzene sensor based on multiwall carbon nanotubes (MWCNTs) decorated with gold nanoparticles and functionalised with a long-chain thiol self-assembled monolayer, 1-hexadecan

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3

LIEBERZEIT, PETER A., ABDUL REHMAN, SADAF YAQUB, and FRANZ L. DICKERT. "NANOSTRUCTURED PARTICLES AND LAYERS FOR SENSING CONTAMINANTS IN AIR AND WATER." Nano 03, no. 04 (2008): 205–8. http://dx.doi.org/10.1142/s1793292008001015.

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Chemical sensor layers for environmental applications require optimal selectivity, sensitivity, and long term stability, which can be achieved in artificial matrices. For detecting thiols in air, reversible affinity interactions can be optimized by varying the stoichiometry of molybdenum disulphide nanoparticles to achieve sulphur deficiencies. Generating MoS1.9 increases the quartz crystal microbalance (QCM) sensor responses towards butane thiol by a factor of three. Artificial recognition sites are accessible by molecular imprinting: acrylate copolymers can be tuned in polarity to interact s

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4

Casanova-Cháfer, Juan, Carla Bittencourt, and Eduard Llobet. "Hydrophilicity and carbon chain length effects on the gas sensing properties of chemoresistive, self-assembled monolayer carbon nanotube sensors." Beilstein Journal of Nanotechnology 10 (February 27, 2019): 565–77. http://dx.doi.org/10.3762/bjnano.10.58.

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Here we describe the development of chemoresistive sensors employing oxygen-plasma-treated, Au-decorated multiwall carbon nanotubes (MWCNTs) functionalized with self-assembled monolayers (SAMs) of thiols. For the first time, the effects of the length of the carbon chain and its hydrophilicity on the gas sensing properties of SAMs formed on carbon nanotubes are studied, and additionally, the gas sensing mechanisms are discussed. Four thiols differing in the length of the carbon chain and in the hydrophobic or hydrophilic nature of the head functional group are studied. Transmission electron mic

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5

Hillion, Melanie, and Haike Antelmann. "Thiol-based redox switches in prokaryotes." Biological Chemistry 396, no. 5 (2015): 415–44. http://dx.doi.org/10.1515/hsz-2015-0102.

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Abstract Bacteria encounter reactive oxygen species (ROS) as a consequence of the aerobic life or as an oxidative burst of activated neutrophils during infections. In addition, bacteria are exposed to other redox-active compounds, including hypochloric acid (HOCl) and reactive electrophilic species (RES) such as quinones and aldehydes. These reactive species often target the thiol groups of cysteines in proteins and lead to thiol-disulfide switches in redox-sensing regulators to activate specific detoxification pathways and to restore the redox balance. Here, we review bacterial thiol-based re

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6

Flaumenhaft, Robert, and Bruce Furie. "Vascular thiol isomerases." Blood 128, no. 7 (2016): 893–901. http://dx.doi.org/10.1182/blood-2016-04-636456.

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Abstract Thiol isomerases are multifunctional enzymes that influence protein structure via their oxidoreductase, isomerase, and chaperone activities. These enzymes localize at high concentrations in the endoplasmic reticulum of all eukaryotic cells where they serve an essential function in folding nascent proteins. However, thiol isomerases can escape endoplasmic retention and be secreted and localized on plasma membranes. Several thiol isomerases including protein disulfide isomerase, ERp57, and ERp5 are secreted by and localize to the membranes of platelets and endothelial cells. These vascu

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7

Chamorro-Garcia, Alejandro, Gabriel Ortega, Davide Mariottini, Joshua Green, Francesco Ricci, and Kevin W. Plaxco. "Switching the aptamer attachment geometry can dramatically alter the signalling and performance of electrochemical aptamer-based sensors." Chemical Communications 57, no. 88 (2021): 11693–96. http://dx.doi.org/10.1039/d1cc04557a.

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8

Hatori, Yuta, Takanori Kubo, Yuichiro Sato, Sachiye Inouye, Reiko Akagi, and Toshio Seyama. "Visualization of the Redox Status of Cytosolic Glutathione Using the Organelle- and Cytoskeleton-Targeted Redox Sensors." Antioxidants 9, no. 2 (2020): 129. http://dx.doi.org/10.3390/antiox9020129.

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Glutathione is a small thiol-containing peptide that plays a central role in maintaining cellular redox homeostasis. Glutathione serves as a physiologic redox buffer by providing thiol electrons for catabolizing harmful oxidants and reversing oxidative effects on biomolecules. Recent evidence suggests that the balance of reduced and oxidized glutathione (GSH/GSSG) defines the redox states of Cys residues in proteins and fine-tunes their stabilities and functions. To elucidate the redox balance of cellular glutathione at subcellular resolution, a number of redox-sensitive green fluorescent prot

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9

Zhang, Jun-Hua, Zi-Tong Zhang, Yang-Jing Ou, et al. "Red-emitting GSH-Cu NCs as a triplet induced quenched fluorescent probe for fast detection of thiol pollutants." Nanoscale 12, no. 37 (2020): 19429–37. http://dx.doi.org/10.1039/d0nr04645k.

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10

Vázquez-Torres, Andrés. "Redox Active Thiol Sensors of Oxidative and Nitrosative Stress." Antioxidants & Redox Signaling 17, no. 9 (2012): 1201–14. http://dx.doi.org/10.1089/ars.2012.4522.

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11

Lieberzeit, Peter A., Abdul Rehman, Bita Najafi, and Franz L. Dickert. "Generating Bio-Analogous Recognition of Artificial Materials – Sensors and Electronic Noses for Odours." Advances in Science and Technology 58 (September 2008): 103–7. http://dx.doi.org/10.4028/www.scientific.net/ast.58.103.

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Chemical sensing is a key application of bio-inspired smart materials. Artificial nanostructured layers mimicking biorecognition are synthetically accessible e.g. by imprinting techniques or affinity material nanoparticles. Hence, for detecting extremely malodorous organic thiols (butane/octance thiol), we designed molybdenum disulphide nanoparticles. In contrast to soft metals (e.g. gold) they interact with the SH-group fully reversibly leading to one of the first real QCM sensors for these compounds. Rationally varying the surface of the recognition material allows for optimizing the interac

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12

KOYAMA, EMIKO, HIDEO TOKUHISA, ABDELHAK BELAISSAOUI, YOSHINOBU NAGAWA, MASATOSHI KANESATO та TAKAO ISHIDA. "CONSTRUCTION OF MOLECULAR SENSORS FOR PROTONS USING π-CONJUGATED MOLECULES". International Journal of Nanoscience 04, № 04 (2005): 475–81. http://dx.doi.org/10.1142/s0219581x05003589.

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The protonation/deprotonation response of a novel bipyridine containing (phenylene-ethynylene) thiol adsorbed to a Au surface was investigated with scanning tunneling microscopy (STM). STM results show reversible changes in the average heights (~50 spots) and the height distribution arising from protonation/deprotonation.

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13

McCormick, Wesley, Pádraig McDonagh, John Doran, and Denis McCrudden. "Covalent Immobilisation of a Nanoporous Platinum Film onto a Gold Screen-Printed Electrode for Highly Stable and Selective Non-Enzymatic Glucose Sensing." Catalysts 11, no. 10 (2021): 1161. http://dx.doi.org/10.3390/catal11101161.

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Progress in the development of commercially available non-enzymatic glucose sensors continues to be problematic due to issues regarding selectivity, reproducibility and stability. Overcoming these issues is a research challenge of significant importance. This study reports a novel fabrication process using a double-layer self-assembly of (3 mercaptopropyl)trimethoxysilane (MPTS) on a gold substrate and co-deposition of a platinum–copper alloy. The subsequent electrochemical dealloying of the less noble copper resulted in a nanoporous platinum structure on the uppermost exposed thiol groups. Am

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14

Glasco, Dalton Lee, and Jeffrey Gordon Bell. "Nonlinear Behavior during the Electrochemical Oxidation of Thiols." ECS Meeting Abstracts MA2022-01, no. 45 (2022): 1928. http://dx.doi.org/10.1149/ma2022-01451928mtgabs.

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The electrochemical behavior of sulfur-containing compounds is of great importance in fields ranging from diagnostics to energy-storage and materials chemistry. For example, thiols (R-SH) are important components of many electrochemical sensors and are routinely used in materials applications as they are known to form well-ordered and reproducible monolayers (self-assembled monolayers, SAMs) on various metal surfaces. Sulfur compounds are also interesting from the viewpoint of nonlinear dynamics owing to the presence of multiple oxidation states, which has been exploited to study complex dynam

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15

Li, Steve Po-Yam, Justin Shum, and Kenneth Kam-Wing Lo. "Iridium(iii) polypyridine complexes with a disulfide linker as biological sensors and cytotoxic agents." Dalton Transactions 48, no. 26 (2019): 9692–702. http://dx.doi.org/10.1039/c9dt00793h.

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16

Mahalakshmi, Radhakrishnan. "Oxidative Thiol Modifications as Molecular Redox Sensors in Human Mitochondria." Biophysical Journal 118, no. 3 (2020): 449a. http://dx.doi.org/10.1016/j.bpj.2019.11.2506.

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17

Vogelsang, Lara, and Karl-Josef Dietz. "Regulatory thiol oxidation in chloroplast metabolism, oxidative stress response and environmental signaling in plants." Biochemical Journal 477, no. 10 (2020): 1865–78. http://dx.doi.org/10.1042/bcj20190124.

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The antagonism between thiol oxidation and reduction enables efficient control of protein function and is used as central mechanism in cellular regulation. The best-studied mechanism is the dithiol-disulfide transition in the Calvin Benson Cycle in photosynthesis, including mixed disulfide formation by glutathionylation. The adjustment of the proper thiol redox state is a fundamental property of all cellular compartments. The glutathione redox potential of the cytosol, stroma, matrix and nucleoplasm usually ranges between −300 and −320 mV. Thiol reduction proceeds by short electron transfer ca

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18

Hildebrandt, Wulf, Steve Alexander, Peter Bärtsch, and Wulf Dröge. "Effect of N-acetyl-cysteine on the hypoxic ventilatory response and erythropoietin production: linkage between plasma thiol redox state and O2 chemosensitivity." Blood 99, no. 5 (2002): 1552–55. http://dx.doi.org/10.1182/blood.v99.5.1552.

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Oxygen-sensing chemoreceptors contribute significantly to the regulation of the respiratory drive and arterial PO2levels. The hypoxic ventilatory response (HVR) decreases strongly with age and is modulated by prolonged hypoxia and physical exercise. Several earlier studies indicated that the regulation of the ventilatory response and erythropoietin (EPO) production by the respective oxygen sensors involves redox-sensitive signaling pathways, which are triggered by the O2-dependent production of reactive oxygen species. The hypothesis that HVR and EPO production are modulated by thiol compounds

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19

Zaidi, Shabi Abbas, and Jae Ho Shin. "A review on the latest developments in nanostructure-based electrochemical sensors for glutathione." Analytical Methods 8, no. 8 (2016): 1745–54. http://dx.doi.org/10.1039/c5ay03140k.

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Glutathione, a low molecular mass thiol compound, is considered a vital biomarker for various disease and cancers owing to the variation in the level of GSH from its normal level in the micromolar to millimolar range in biological fluids and cells.

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20

Minagawa, Yuichi, Mari Ohashi, Yoshinori Kagawa, Arata Urimoto, and Hiroshi Ishida. "Compact Surface Plasmon Resonance Sensor for Underwater Chemical Sensing Robot." Journal of Sensors 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/9846780.

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This paper reports on the development of compact surface plasmon resonance (SPR) sensors for mobile robot olfaction. Underwater robots benefit from olfactory sensing capabilities in various tasks including the search for unexploded ordnance and undersea wreckage. Although the SPR-based chemical sensor is a promising sensing platform, the cumbersome optical setup has been limiting its use on mobile robots. The proposed sensor employs a periodic metal structure formed on a self-assembled layer of polystyrene particles of 200 nm in diameter. With the grating of this size, SPR can be excited even

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21

Lee, Sang Jae, Dong-Gyun Kim, Kyu-Yeon Lee, Ji Sung Koo, and Bong-Jin Lee. "Regulatory mechanisms of thiol-based redox sensors: lessons learned from structural studies on prokaryotic redox sensors." Archives of Pharmacal Research 41, no. 6 (2018): 583–93. http://dx.doi.org/10.1007/s12272-018-1036-0.

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22

Costa, Cláudio F., Celien Lismont, Serhii Chornyi, et al. "Functional Analysis of GSTK1 in Peroxisomal Redox Homeostasis in HEK-293 Cells." Antioxidants 12, no. 6 (2023): 1236. http://dx.doi.org/10.3390/antiox12061236.

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Peroxisomes serve as important centers for cellular redox metabolism and communication. However, fundamental gaps remain in our understanding of how the peroxisomal redox equilibrium is maintained. In particular, very little is known about the function of the nonenzymatic antioxidant glutathione in the peroxisome interior and how the glutathione antioxidant system balances with peroxisomal protein thiols. So far, only one human peroxisomal glutathione-consuming enzyme has been identified: glutathione S-transferase 1 kappa (GSTK1). To study the role of this enzyme in peroxisomal glutathione reg

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23

Eremenko, A. V., E. A. Dontsova, A. P. Nazarov, et al. "Manganese Dioxide Nanostructures as a Novel Electrochemical Mediator for Thiol Sensors." Electroanalysis 24, no. 3 (2012): 573–80. http://dx.doi.org/10.1002/elan.201100535.

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24

Jia, Yong Hui, and Chao Xu. "Dithiolate Mixed with Diimine and it's Metal Effects on Sensors." Advanced Materials Research 1021 (August 2014): 52–55. http://dx.doi.org/10.4028/www.scientific.net/amr.1021.52.

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Determination of the two Maleinitriledithiolate • phenanthroline-5 ,6-dione Lynn mixed copper (II), zinc (II) complexes MLL' (L=mnty, 1,2 twelve dicyanoethylene-1,2 - thiol ion L '= phen-5, 6-dione, l, 10 - phenanthroline-5 ,6-one o) amine in dimethy-l phthalate (DMF), acetone (Acet.) and chloroform (HCli) electronic absorption spectra corresponding to transitions studied the relationship between the absorption bands in the electronic spectra associated molecular orbital energy level diagram to explore their photographic oxidation characteristics in DMF.

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25

Chen, Yiting, Yanxia Li, Linqin Jiang, Lu Huang, Qi Lin, and Guonan Chen. "Fabrication of a heated electrode modified with a thiol-functionalized ionic liquid for electrochemical/electrochemiluminescence sensors." RSC Advances 6, no. 46 (2016): 39955–61. http://dx.doi.org/10.1039/c6ra05302e.

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A new heated thiol-functionalized ionic liquid (TFIL)/Au composite electrode, which possessed the advantages of a heated electrode technique and ionic liquids (ILs), was designed and fabricated in this study.

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26

Qin, Junjie, Bohua Dong, Xue Li, et al. "Fabrication of intelligent photonic crystal hydrogel sensors for selective detection of trace mercury ions in seawater." Journal of Materials Chemistry C 5, no. 33 (2017): 8482–88. http://dx.doi.org/10.1039/c7tc02140b.

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Hydrogel thin films with embedded 3-D ordered colloidal nanoparticle arrays are fabricated and functionalized with spatially distributed thiol groups for high-sensitive and selective detection of trace Hg<sup>2+</sup> ions in seawater.

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27

Pyrak, Jaworska, and Kudelski. "SERS Studies of Adsorption on Gold Surfaces of Mononucleotides with Attached Hexanethiol Moiety: Comparison with Selected Single-Stranded Thiolated DNA Fragments." Molecules 24, no. 21 (2019): 3921. http://dx.doi.org/10.3390/molecules24213921.

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The attachment of DNA strands to gold surfaces is performed in many devices, such as various DNA sensors. One of the standard methods used to immobilize DNA on gold surfaces involves two steps: the attachment of a thiol linker group (usually in the form of alkanethiol moiety) to the DNA strand, and the chemical reaction between the thiol-terminated DNA and the gold surface. Since thiols react chemically with the surface of gold substrates, forming very stable Au–S bonds, it is often assumed that the chemisorption on the gold surface of nucleotides with an attached thiol linker group leads to t

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28

Knight, Jessica Renee, Yingying Wang, Shi Xu, Wei Chen, Clifford E. Berkman, and Ming Xian. "A modular template for the design of thiol-triggered sensors and prodrugs." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 247 (February 2021): 119072. http://dx.doi.org/10.1016/j.saa.2020.119072.

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29

Nguyen, Long H., Farshad Oveissi, Rona Chandrawati, Fariba Dehghani, and Sina Naficy. "Naked-Eye Detection of Ethylene Using Thiol-Functionalized Polydiacetylene-Based Flexible Sensors." ACS Sensors 5, no. 7 (2020): 1921–28. http://dx.doi.org/10.1021/acssensors.0c00117.

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30

O’Connor, Naphtali A., Gustavo E. López, and Anthony Cruz. "Quinoline-2-thiol Derivatives as Fluorescent Sensors for Metals, pH and HNO." Current Chemistry Letters 3, no. 3 (2014): 189–94. http://dx.doi.org/10.5267/j.ccl.2014.3.001.

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31

Daskal, Yelyena, Susann Rabe, Rosemarie Dittrich, Christiane Oestreich, and Yvonne Joseph. "Chemiresistors Based on Bisdithiocarbamate Interlinked Gold Nanoparticles." Proceedings 2, no. 13 (2018): 933. http://dx.doi.org/10.3390/proceedings2130933.

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The assembly, structure, composition and sensing properties of novel bisdithiocarbamate based gold nanoparticle networks have been investigated. The sensing properties have been studied with vapors of toluene, 1-propanol, water, and 4-methyl-2-pentanone. We demonstrated that bisdithiocarbamates based chemiresistive sensors show sensing properties versus volatile organic compounds (VOC) comparable to thiol based composites but that they are superior in their long term stability.

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32

Jousselin, Ambre, William L. Kelley, Christine Barras, Daniel P. Lew, and Adriana Renzoni. "The Staphylococcus aureus Thiol/Oxidative Stress Global Regulator Spx ControlstrfA, a Gene Implicated in Cell Wall Antibiotic Resistance." Antimicrobial Agents and Chemotherapy 57, no. 7 (2013): 3283–92. http://dx.doi.org/10.1128/aac.00220-13.

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ABSTRACTS. aureuscombats cell wall antibiotic stress by altered gene expression mediated by various environmental signal sensors. In this study, we examined the transcriptional regulation oftrfA, a gene related tomecAofBacillus subtilisencoding an adaptor protein implicated in multiple roles, notably, proteolysis and genetic competence. Despite strong sequence similarity toB. subtilismecA, the function ofS. aureustrfAremains largely unexplored; however, its deletion leads to almost complete loss of resistance to oxacillin and glycopeptide antibiotics in glycopeptide-intermediateS. aureus(GISA)

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33

Gil de Melo, Shaiani Maria, Lucas Cunha Dias de Rezende, Raquel Petrilli, Renata Fonseca Vianna Lopez, Marilia O. F. Goulart, and Flavio da Silva Emery. "Nitrosation of BODIPY dyes and their applications in the development of thiol sensors." Dyes and Pigments 173 (February 2020): 107885. http://dx.doi.org/10.1016/j.dyepig.2019.107885.

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34

Afrin, R., and N. A. Shah. "Room temperature gas sensors based on carboxyl and thiol functionalized carbon nanotubes buckypapers." Diamond and Related Materials 60 (November 2015): 42–49. http://dx.doi.org/10.1016/j.diamond.2015.10.010.

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KUMAR, NANJUNDAN ASHOK, SUNG HUN KIM, JONG SU KIM, JONG TAE KIM, and YEON TAE JEONG. "FUNCTIONALIZATION OF MULTI-WALLED CARBON NANOTUBES WITH CYSTEAMINE FOR THE CONSTRUCTION OF CNT/GOLD NANOPARTICLE HYBRID NANOSTRUCTURES." Surface Review and Letters 16, no. 03 (2009): 487–92. http://dx.doi.org/10.1142/s0218625x09012895.

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Combining hybrid nanostructures of metal nanoparticles (NPs) and carbon nanotubes could afford a novel strategy to prepare promising nanomaterials for the highly sensitive sensors and imaging science applications. Conventional acid oxidation process was used to obtain carboxylic acid bound multi-walled carbon nanotubes (MWNTs) which was further acylated with thionyl chloride to give acyl chloride functionalized MWNTs. Thiol functionalized MWNTs were synthesized by amidation reaction of the acylated MWNTs with cysteamine. Further, gold nanoparticles (GNPs) were successfully fabricated on the tu

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36

Batistuti, Marina R., Marcelo Mulato, and Paulo R. Bueno. "Breast cancer detection using charge sensors coupled to DNA monolayer." MRS Proceedings 1793 (2015): 19–26. http://dx.doi.org/10.1557/opl.2015.671.

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ABSTRACTWe report the development of a label-free biosensors based on DNA hybridization, using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). This study uses DNA sequences based on microRNA related with breast cancer. The biosensor was fabricated by immobilizing a self-assembled monolayer of single-stranded 23-mer oligonucleotide (ssDNA) via a thiol linker on gold work electrodes. Residual binding places were filled with 6 -mercaptohexanol (MCH). The electrode was electrochemicaly characterized in the presence of a redox system ferri/ferrocyanide. Different concentra

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37

Norberg, Oscar, Irene H. Lee, Teodor Aastrup, Mingdi Yan, and Olof Ramström. "Photogenerated lectin sensors produced by thiol-ene/yne photo-click chemistry in aqueous solution." Biosensors and Bioelectronics 34, no. 1 (2012): 51–56. http://dx.doi.org/10.1016/j.bios.2012.01.001.

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Sund, James B., Corey P. Causey, Scott D. Wolter, et al. "Diamond surface functionalization with biomimicry – Amine surface tether and thiol moiety for electrochemical sensors." Applied Surface Science 301 (May 2014): 293–99. http://dx.doi.org/10.1016/j.apsusc.2014.02.067.

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39

König, Janine, Meenakumari Muthuramalingam, and Karl-Josef Dietz. "Mechanisms and dynamics in the thiol/disulfide redox regulatory network: transmitters, sensors and targets." Current Opinion in Plant Biology 15, no. 3 (2012): 261–68. http://dx.doi.org/10.1016/j.pbi.2011.12.002.

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Caro, C., F. Gámez, and A. P. Zaderenko. "Preparation of Surface-Enhanced Raman Scattering Substrates Based on Immobilized Silver-Capped Nanoparticles." Journal of Spectroscopy 2018 (2018): 1–9. http://dx.doi.org/10.1155/2018/4127108.

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Novel results concerning surface-enhanced Raman scattering mediated by thiol-immobilized capped silver nanoparticles attached to a silicon Si(100) substrate are presented. The attachment of the nanoparticles is achieved by chemically modifying the surface of Si(100) in order to provide sulfhydryl groups covalently linked to the substrate and then covering these surfaces with bare and polymer-capped silver nanoparticles. The modified silicon substrate, the nanoparticles, and the sensors are characterized by means of infrared and UV-vis spectroscopies and electronic microscopies. The surface-enh

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41

Ziyatdinova, Guzel, and Liliya Gimadutdinova. "Recent Advances in Electrochemical Sensors for Sulfur-Containing Antioxidants." Micromachines 14, no. 7 (2023): 1440. http://dx.doi.org/10.3390/mi14071440.

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Sulfur-containing antioxidants are an important part of the antioxidant defense systems in living organisms under the frame of a thiol–disulfide equilibrium. Among them, l-cysteine, l-homocysteine, l-methionine, glutathione, and α-lipoic acid are the most typical representatives. Their actions in living systems are briefly discussed. Being electroactive, sulfur-containing antioxidants are interesting analytes to be determined using various types of electrochemical sensors. Attention is paid to the chemically modified electrodes with various nanostructured coverages. The analytical capabilities

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42

Mochizuki, Masahito, Syifa Asatyas, Kasinan Suthiwanich, and Tomohiro Hayashi. "Thiol Molecules as Temperature Sensors for Surface-enhanced Raman Scattering Measurements of Heat-sensitive Materials." Chemistry Letters 45, no. 10 (2016): 1207–9. http://dx.doi.org/10.1246/cl.160572.

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43

Joo, Jinmyoung, Dongkyu Lee, Myungsun Yoo, and Sangmin Jeon. "ZnO nanorod-coated quartz crystals as self-cleaning thiol sensors for natural gas fuel cells." Sensors and Actuators B: Chemical 138, no. 2 (2009): 485–90. http://dx.doi.org/10.1016/j.snb.2009.03.017.

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44

Cozzens, Yuqing, Diane M. Steeves, Jason W. Soares, and James E. Whitten. "Light-Sensitive Gas Sensors Based on Thiol-Functionalized N-Isopropylacrylamide Polymer–Gold Nanoparticle Composite Films." Macromolecules 52, no. 7 (2019): 2900–2910. http://dx.doi.org/10.1021/acs.macromol.8b02638.

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Ortyl, Joanna, Paweł Fiedor, Anna Chachaj-Brekiesz, Maciej Pilch, Emilia Hola, and Mariusz Galek. "The Applicability of 2-amino-4,6-diphenyl-pyridine-3-carbonitrile Sensors for Monitoring Different Types of Photopolymerization Processes and Acceleration of Cationic and Free-Radical Photopolymerization Under Near UV Light." Sensors 19, no. 7 (2019): 1668. http://dx.doi.org/10.3390/s19071668.

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The performance of a series of 2-amino-4,6-diphenyl-pyridine-3-carbonitrile derivatives as fluorescent molecular sensors for monitoring photopolymerization processes of different monomers by the Fluorescence Probe Technique (FPT) was studied. It has been shown that the new derivatives are characterized by much higher sensitivity than the commercially available 7-diethylamino-4-methylcoumarin (Coumarin 1) and trans-2-(2′,5′-dimethoxyphenyl)ethenyl-2,3,4, 5,6-pentafluorobenzene (25ST) probes. It has been discovered that the 2-amino-4,6-diphenyl-pyridine-3-carbonitrile derivatives accelerate the

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Tan, Shu Zhen, Pu Ni Zeng, Zhong Cao, Jiao Yun Xia, and Wei Li. "A Novel Technique for Preparation of the Fluorescence Sensor Based on Covalent Immobilization of 1-Aminopyrene." Advanced Materials Research 239-242 (May 2011): 1442–47. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.1442.

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A novel technique to covalently immobilize indicator dyes with terminal amino groups for preparing optical sensors is investigated. Au nanoparticles are used as bridges and carriers for anchoring indicator dyes on the surface of a quartz glass slide. 1-Aminopyrene (AP) was employed as an example of indicator dyes and covalently immobilized onto the outmost surface of the glass slide. First, the glass slide was functionalized by (3-mercaptopropyl) trimethoxysilane (MPS) to form a thiol-terminated self-assembled monolayer, where Au nanoparticles were strongly anchored via covalent link. Then, 16

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Barber, Robert, Elisha McCrory, Sarah L. Brennan, et al. "Poly(5-Amino-1,4-naphthoquinone) – Lasered Graphene Sensor for the Detection of Cysteine." ECS Meeting Abstracts MA2022-02, no. 61 (2022): 2273. http://dx.doi.org/10.1149/ma2022-02612273mtgabs.

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The electrosynthesis of a novel polyquinone film onto laser induced graphene (LIG) substrates is presented as a sensitive and scalable route to the production of thiol sensors. The one pot electroreduction of 5-nitro-1,4-naphthoquinone and subsequent electro-oxidation of the resulting amine was found to yield polymeric films consisting of repeating 1,4-naphthoquinone units. The resulting film exhibited electrochemically reversible behaviour (Eo = -0.1V at pH 7 (vs 3M NaCl Ag/AgCl) and found to exhibit a pH sensitivity of 61 mV / pH unit. The quinone groups within the film were found to react w

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Shellaiah, Muthaiah, Natesan Thirumalaivasan, Basheer Aazaad, et al. "An AIEE Active Anthracene-Based Nanoprobe for Zn2+ and Tyrosine Detection Validated by Bioimaging Studies." Chemosensors 10, no. 10 (2022): 381. http://dx.doi.org/10.3390/chemosensors10100381.

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Novel anthracene-based Schiff base derivative (4-(anthracen-9-ylmethylene) amino)-5-phenyl-4H-1,2,4-triazole-3-thiol; AT2) is synthesized and utilized as an aggregation-induced emission-enhancement (AIEE) active probe to detect Zn2+ and Tyrosine. Ultraviolet-visible absorption/photoluminescence (UV-vis/PL) spectroscopy studies on the AIEE property of AT2 (in ethanol) with increasing water fractions (fw: 0–97.5%) confirm the J-type aggregation. Excellent sensor selectivity of AT2 to Zn2+ and its reversibility with Tyrosine are demonstrated with PL interrogations. 2:1 and 1:1 stoichiometry and b

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Kida, Tetsuya, Hiroyuki Kurachi, Masayoshi Yuasa, Kengo Shimanoe, and Noboru Yamazoe. "Deposition of Pd onto SnO₂ Nanoparticles-Based Gas Sensors Using a Pd Complex as the Precursor." Advanced Materials Research 47-50 (June 2008): 1506–9. http://dx.doi.org/10.4028/www.scientific.net/amr.47-50.1506.

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The deposition of Pd nanoparticles onto thiol-functionalized SnO2 nanoparticles was carried out at the aqueous/organic liquid/liquid interface to prepare Pd-loaded SnO2 nanoparticles for high-sensitive sensor materials. The method is based on the self-assembly deposition of Pd onto dimercaptosucinic acid (DMSA)-functionalized SnO2 nanoparticles (mean diameter: 4 nm) prepared by a hydrothermal method. Pd nanoparticles of 2-3 nm in chloroform were prepared by thermal decomposition of a Pd complex at high temperature (170 °C). Thin film-type device using the prepared Pd-loaded SnO2 nanoparticles

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Vogel, Eric M., Eleanor L. Brightbill, Hilena Gezahagne, and Decarle S. Jin. "(Invited) Challenges with Electronic Biosensors." ECS Meeting Abstracts MA2022-02, no. 61 (2022): 2259. http://dx.doi.org/10.1149/ma2022-02612259mtgabs.

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The detection of chemical and biological species is critical for applications in healthcare, environmental monitoring, food safety and drug screening. Potentiometric biochemical sensors rely on the specific adsorption of charged analytes that changes the potential of the functionalized sensor surface. The change in surface potential can be measured using a field-effect-transistor (FET) enabling low-cost fabrication, and easy integration with portable readout electronics. The FET concept has previously been applied to numerous (nano-) materials including conventional silicon, nanowires and 2D m

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