Number of the records: 1
Charge-transfer complexation: A highly effective way towards chiral nanoparticles endowed by intrinsically chiral helicene and enantioselective SERS detection
- 1.
SYSNO ASEP 0575451 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Charge-transfer complexation: A highly effective way towards chiral nanoparticles endowed by intrinsically chiral helicene and enantioselective SERS detection Author(s) Guselnikova, O. (CZ)
Elashnikov, R. (CZ)
Švorčík, V. (CZ)
Záruba, K. (CZ)
Jakubec, Martin (UCHP-M) RID, ORCID, SAI
Žádný, Jaroslav (UCHP-M) RID, SAI, ORCID
Storch, Jan (UCHP-M) RID, ORCID, SAI
Lyutakov, O. (CZ)Article number 134332 Source Title Sensors and Actuators B - Chemical. - : Elsevier
Roč. 394, 1 NOV (2023)Number of pages 11 s. Language eng - English Country CH - Switzerland Keywords chirality ; plasmon ; helicene OECD category Organic chemistry R&D Projects GA20-19353S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access with time embargo (02.11.2025) Institutional support UCHP-M - RVO:67985858 UT WOS 001158796700001 EID SCOPUS 85167440292 DOI 10.1016/j.snb.2023.134332 Annotation An ordered chiral gold nanoparticle (AuNPs) array was prepared by the treatment of achiral sphere-shaped gold nanoparticles endowed with electron-accepting dinitro-phenyl (DNP) groups complexing with enantiomers of [6]helicene representing electron donors with strong chiroptical properties. Such surface-functionalization utilizes the principles of charge-transfer (CT) interaction. The incorporation of [6]helicene molecules with unique electronic and optical properties and subsequent arrangement of AuNPs caused chirality induction to intrinsically non-chiral plasmon-active nanostructures. The created nanostructures enabled the excitation of chiral plasmon and its application in highly sensitive enantioselective detection of small chiral molecules by surface-enhanced Raman spectroscopy (SERS). The chiral plasmonic response of such a system was shown to be fully controlled via the helicity of the parent [6]helicene. Upon calibration, it allowed us to directly determine the enantiomeric composition of non-racemic mixtures of (R)/(S)− 1-phenylethanol and (R)/(S)− 2-butanol. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2024 Electronic address https://hdl.handle.net/11104/0345237
Number of the records: 1