TY - JOUR
T1 - Chemical Mechanism-Dominated and Reporter-Tunable Surface-Enhanced Raman Scattering via Directional Supramolecular Assembly
AU - Wang, Zhaoyin
AU - Huang, Lili
AU - Zhang, Min
AU - Li, Zijun
AU - Wang, Lei
AU - Jin, Haozhe
AU - Mu, Xijiao
AU - Dai, Zhihui
N1 - Publisher Copyright:
© 2022 American Chemical Society.
PY - 2022/9/28
Y1 - 2022/9/28
N2 - Molecular resonance can be strengthened by charge transfer, profiting chemical mechanism (CM)-related surface-enhanced Raman scattering (SERS). Herein a supramolecular assembly enabled SERS system is established by functionalizing para-sulfonatocalix[4]arene (pSC4) onto Au3Cu nanocrystals (NCs). Due to the cooperation of Au and Cu, pSC4 is directionally assembled on the surface of Au3Cu NCs via van der Waals force, enabling photoinduced and hydrogen bond-induced charge transfer, which remarkably enhances the Raman scattering of methylene blue (MB) captured by pSC4. In particular, for the C-N and C-C stretching of MB, the contributions of resonance Raman scattering increase up to 80%. In addition, the SERS system is able to display affinities of different host-guest interactions, and further employed to evaluate effects of drugs for Alzheimer's disease. In this work, charge transfer is realized by performing supramolecular assembly on the surface of plasmonic nanomaterials, providing an avenue to design CM-related and reporter-tunable SERS systems.
AB - Molecular resonance can be strengthened by charge transfer, profiting chemical mechanism (CM)-related surface-enhanced Raman scattering (SERS). Herein a supramolecular assembly enabled SERS system is established by functionalizing para-sulfonatocalix[4]arene (pSC4) onto Au3Cu nanocrystals (NCs). Due to the cooperation of Au and Cu, pSC4 is directionally assembled on the surface of Au3Cu NCs via van der Waals force, enabling photoinduced and hydrogen bond-induced charge transfer, which remarkably enhances the Raman scattering of methylene blue (MB) captured by pSC4. In particular, for the C-N and C-C stretching of MB, the contributions of resonance Raman scattering increase up to 80%. In addition, the SERS system is able to display affinities of different host-guest interactions, and further employed to evaluate effects of drugs for Alzheimer's disease. In this work, charge transfer is realized by performing supramolecular assembly on the surface of plasmonic nanomaterials, providing an avenue to design CM-related and reporter-tunable SERS systems.
UR - http://www.scopus.com/inward/record.url?scp=85137864668&partnerID=8YFLogxK
U2 - 10.1021/jacs.2c06026
DO - 10.1021/jacs.2c06026
M3 - 文章
C2 - 36075049
AN - SCOPUS:85137864668
SN - 0002-7863
VL - 144
SP - 17330
EP - 17335
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 38
ER -