Premium
Ultrasonic‐Assisted Synthesis of Highly Defined Silver Nanodimers by Self‐Assembly for Improved Surface‐Enhanced Raman Spectroscopy
Author(s) -
Zhang Junfang,
Gim Soeun,
Paris Grigori,
Dallabernardina Pietro,
Schmitt Clemens N. Z.,
Eickelmann Stephan,
Loeffler Felix F.
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201904518
Subject(s) - raman spectroscopy , materials science , nanotechnology , ultrasonic sensor , fabrication , substrate (aquarium) , surface enhanced raman spectroscopy , particle (ecology) , biosensor , self assembly , raman scattering , optics , acoustics , medicine , oceanography , physics , alternative medicine , pathology , geology
Considerable research efforts have been devoted to surface‐enhanced Raman spectroscopy (SERS), due to its excellent performance in biosensing and imaging. Here, a novel and facile strategy for the fabrication of well‐defined and uniform nanodimers as SERS substrates is presented. By the assistance of ultrasound, the violent polyol process for particle generation becomes controllable, enabling the self‐assembly of nanostars to nanodimers. Moreover, the aggregation of nanodimers can be easily tuned by post‐ultrasonic treatment, which gives a sensitive substrate for SERS.