Original title: Modification of Metal Surfaces by Optically Active [7]Helicene Derivatives for Molecular Sensing.
Authors: Walaská, Hana ; Kalachyova, Y. ; Elashnikov, R. ; Storch, Jan ; Žádný, Jaroslav ; Lyutakov, O.
Document type: Papers
Conference/Event: Advances in Organic, Bioorganic and Pharmaceutical Chemistry LIBLICE 2018 /53./, Lázně Bělohrad (CZ), 20181102
Year: 2018
Language: eng
Abstract: New derivatives of 9-(pyridylethynyl)[7]helicenes were firstly prepared and fully characterized in this study. Consequently, they were successfully separated to their (P)- and (M)-enantiomers using a preparative HPLC with chiral stationary phase. These optical antipodes were advantageously used for modification of silver plasmon active nanogratings suitable for a SERS-based detection of (bio)molecules. Properties of such nanostructures were studied using different spectro- and microscopic techniques. As proved by UV-Vis spectrometry, a change of plasmon resonance wavelength position and intensity was observed and indicated the appearance of chiral surface plasmon polarization.
Keywords: helicene; molecular sensor; spectrometry
Project no.: FV10082
Funding provider: GA MPO
Host item entry: Book of Abstracts, ISBN N
Rights: This work is protected under the Copyright Act No. 121/2000 Coll.

Institution: Institute of Chemical Process Fundamentals AS ČR (web)
Original record: http://hdl.handle.net/11104/0289613

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