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Toward Graphene-Enhanced Spectroelectrochemical Sensors

SYSNO ASEP	0558258
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Toward Graphene-Enhanced Spectroelectrochemical Sensors
Tvůrce(i)	Kaushik, Preeti (UFCH-W) Farjana, Jaishmin Sonia (UFCH-W)_{ORCID, RID} Haider, Golam (UFCH-W)_{ORCID, RID} Thakur, Mukesh Kumar (UFCH-W) Valeš, Václav (UFCH-W)_{RID, ORCID} Kong, J. (US) Kalbáč, Martin (UFCH-W)_{RID, ORCID}
Číslo článku	2200478
Zdroj.dok.	Advanced Materials Interfaces. - : Wiley - ISSN 2196-7350 Roč. 9, č. 19 (2022)
Poč.str.	11 s.
Jazyk dok.	eng - angličtina
Země vyd.	DE - Německo
Klíč. slova	methylene-blue ; raman-scattering ; sensitive detection ; surface ; spectroscopy ; intensity ; electron ; spectra ; sers ; charge transfer ; graphene-enhanced Raman spectroscopy ; in situ spectroelectrochemistry ; methylene blue ; spectroelectrochemical sensors
Vědní obor RIV	CG - Elektrochemie
Obor OECD	Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
CEP	LTAUSA19001 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
Způsob publikování	Open access
Institucionální podpora	UFCH-W - RVO:61388955
UT WOS	000806713300001
EID SCOPUS	85131304167
DOI	10.1002/admi.202200478
Anotace	Spectroelectrochemical sensors (SPECSs) sensitive to the least amount of sample are crucial for widespread applications, including early-stage detection of fatal diseases and other biomedical applications. However, despite the major disadvantage of biomolecule instability on noble metal nanoparticle-assisted surface-enhanced SPECSs, designing a suitable alternative remains a great challenge. The authors report a proof-of-concept graphene-enhanced spectroelectrochemical sensors (GE-SPECSs) employing graphene-enhanced Raman spectroscopy (GERS). Pristine (p-) and hydrogenated (h-) single-layer graphene (SLG) are utilized to study the oxidized and reduced states of a probe molecule, methylene blue (MB). The hole-doped h-SLG possesses efficient GERS signals compared with p-SLG, resulting in a limit of detection (LOD) < 10(-7) m. By taking advantage of the tunable work function of graphene, the authors demonstrate that the GERS signal from the probe molecule can be varied and different oxidation states of the molecule can be studied by applying suitable external potentials. The LOD obtained in an aqueous system (approximate to 10(-7) m) is comparable with standard surface-enhanced SPECSs. The authors' design thus creates a novel pathway for developing highly efficient, biofriendly, and cost-effective SPECSs.
Pracoviště	Ústav fyzikální chemie J.Heyrovského
Kontakt	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Rok sběru	2023
Elektronická adresa	http://hdl.handle.net/11104/0331986

Počet záznamů: 1