Abstract

Resonance Raman (RR) and surface-enhanced Raman scattering (SERS) spectroscopy have been used to study immobilization of laccase on self-assembled monolayers (SAMs) of thiols containing carboxylic and amino groups, deposited on silver and gold electrodes. A new, indirect way of monitoring laccase bound to the thiol-coated Ag and Au surfaces is presented. It was demonstrated that by recording the resonance Raman spectra of the colored product of the oxidation of syringaldazine (4-hydroxy-3,5-dimethoxybenzaldehydeazine) by laccase in the presence of molecular oxygen, one may easily confirm binding as well as enzymatic activity of laccase immobilized on the SAMs modified silver and gold surfaces.

Self-assembled monolayers of bimetallic Au/Ag nanospheres with superior surface-enhanced Raman scattering activity for ultra-sensitive triphenylmethane dyes detection

Yue Tian, Hua Zhang, Linlin Xu, Ming Chen, and Feng Chen
Opt. Lett. 43(4) 635-638 (2018)

Comparative study of multiple thiol-based self-assembled monolayer coatings for the SERS detection of nitrite, nitrate, and perchlorate anions in water

P. Muñoz, C. T. N. Noordam, R. J. M. Egberink, J. Huskens, and S. M. Garcia-Blanco
Appl. Opt. 58(34) 9345-9352 (2019)

Effect of surface roughness on self-assembled monolayer plasmonic ruler in nonlocal regime

Ghazal Hajisalem, Qiao Min, Ryan Gelfand, and Reuven Gordon
Opt. Express 22(8) 9604-9610 (2014)

Development of a highly specific amine-terminated aptamer functionalized surface plasmon resonance biosensor for blood protein detection

Rui Zheng, Byung-Wook Park, Dong-Shik Kim, and Brent D. Cameron
Biomed. Opt. Express 2(9) 2731-2740 (2011)

Surface-enhanced Raman scattering by the composite structure of Ag NP-multilayer Au films separated by Al₂O₃

Zhipeng Zha, Runcheng Liu, Wen Yang, Can Li, Jinjuan Gao, Muhammad Shafi, Xiuwei Fan, Zhen Li, Xuejian Du, and Shouzhen Jiang
Opt. Express 29(6) 8890-8901 (2021)