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dc.contributor.authorMani, Veerappan
dc.contributor.authorSelvaraj, Shanthi
dc.contributor.authorJeromiyas, Nithiya
dc.contributor.authorHuang, Sheng-Tung
dc.contributor.authorIkeda, Hiroya
dc.contributor.authorHayakawa, Yasuhiro
dc.contributor.authorPonnusamy, Suru
dc.contributor.authorMuthamizhchelvan, Chellamuthu
dc.contributor.authorSalama, Khaled N.
dc.date.accessioned2020-07-19T13:51:21Z
dc.date.available2020-07-19T13:51:21Z
dc.date.issued2020
dc.date.submitted2020-05-05
dc.identifier.citationMani, V., Selvaraj, S., Jeromiyas, N., Huang, S.-T., Ikeda, H., Hayakawa, Y., … Salama, K. N. (2020). Growth of large-scale MoS2 nanosheets on double layered ZnCo2O4 for real-time in situ H2S monitoring in live cells. Journal of Materials Chemistry B. doi:10.1039/d0tb01162b
dc.identifier.issn2050-750X
dc.identifier.pmid32667020
dc.identifier.doi10.1039/d0tb01162b
dc.identifier.urihttp://hdl.handle.net/10754/664257
dc.description.abstractThere is an urgent need to develop in situ sensors that monitor the continued release of H2S from biological systems to understand H2S-related pathology and pharmacology. For this purpose, we have developed a molybdenum disulfide supported double-layered zinc cobaltite modified carbon cloth electrode (MoS2-ZnCo2O4-ZnCo2O4) based electrocatalytic sensor. The results of our study suggest that the MoS2-ZnCo2O4-ZnCo2O4 electrode has excellent electrocatalytic ability to oxidize H2S at physiological pH, in a minimized overpotential (+0.20 vs. Ag/AgCl) with an amplified current signal. MoS2 grown on double-layered ZnCo2O4 showed relatively better surface properties and electrochemical properties than MoS2 grown on single-layered ZnCo2O4. The sensor delivered excellent analytical parameters, such as low detection limit (5 nM), wide linear range (10 nM-1000 μM), appreciable stability (94.3%) and high selectivity (2.5-fold). The practicality of the method was tested in several major biological fluids. The electrode monitors the dynamics of bacterial H2S in real-time for up to 5 h with good cell viability. Our research shows that MoS2-ZnCo2O4-ZnCo2O4/carbon cloth is a robust and sensitive electrode to understand how bacteria seek to adjust their defense strategies under exogenously induced stress conditions.
dc.description.sponsorshipThis work was supported by the Ministry of Science and Technology (107-2113-M-027-007- and 108-2221-E-027-063-),Taiwan and King Abdullah University of Science and Technology (KAUST), Saudi Arabia. We also thank the support from Japanese Government MONBUKAGAKUSHO: MEXT Scholarship.
dc.publisherRoyal Society of Chemistry (RSC)
dc.relation.urlhttp://xlink.rsc.org/?DOI=D0TB01162B
dc.rightsThis is an open access article licensed under a Creative Commons Attribution 3.0 Unported Licence.
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/
dc.titleGrowth of large-scale MoS2 nanosheets on double layered ZnCo2O4 for real-time in situ H2S monitoring in live cells.
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentSensors Lab
dc.identifier.journalJournal of materials chemistry. B
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionInstitute of Biochemical and Biomedical Engineering
dc.contributor.institutionDepartment of Chemical Engineering and Biotechnology
dc.contributor.institutionNational Taipei University of Technology
dc.contributor.institutionTaipei 106
dc.contributor.institutionRepublic of China
dc.contributor.institutionCentre for Nanoscience and Nanotechnology
dc.contributor.institutionDepartment of Physics and Nanotechnology
dc.contributor.institutionSRM Institute of Science and Technology, Tamil Nadu
dc.contributor.institutionIndia
dc.contributor.institutionResearch Institute of Electronics
dc.contributor.institutionShizuoka University
dc.contributor.institutionHamamatsu
dc.contributor.institutionJapan
dc.contributor.institutionSensors Lab
dc.contributor.institutionAdvanced Membranes and Porous Materials Center
dc.contributor.institutionComputer, Electrical and Mathematical Science and Engineering Division
dc.contributor.institutionSaudi Arabia
kaust.personSalama, Khaled N.
dc.date.accepted2020-06-30
refterms.dateFOA2020-07-19T13:52:08Z


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