기본 정보
연구 분야
프로젝트
논문
구성원
article|
인용수 4
·2025
Metal–Organic Framework/Au Core/Shell Nanocubes for Spatially Aligned Molecular Analysis and Molecular-Fingerprint Sensing with Surface-Enhanced Raman Scattering
Hyeon-Jeong Shin, Kyungin Choi, Jiwoong Son, M.‐J. KIM, Sarah S. Park, Jwa‐Min Nam
Journal of the American Chemical Society
초록

The spatial configuration of molecules on metal surfaces is a key parameter in reliably modulating the surface-enhanced Raman scattering (SERS) signals quantitatively, but the methods and platforms for controlling this configuration are not well established. Here, we utilized metal-organic frameworks (MOFs) to periodically and spatially arrange molecules in synthesizing zeolite imidazole framework-8 (ZIF-8)/Au core/shell nanocubes (ZACS NCs) for quantitative SERS. The uniform plasmonic Au nanoshell deposition onto ZIF-8 NCs was accomplished by the (100) facets of ZIF-8 and the use of cetyltrimethylammonium chloride (CTAC). In ZACS NCs, an interfacial Au/Zn alloy layer is between the AuNC core and ZIF-8 shell, which can modulate the plasmonic properties of the ZACS NCs. Single-particle Raman analysis suggests that characteristic vibrational Raman moieties of 2-methylimidazole (2-mIM) ligands have a clear laser polarization angle dependence. Importantly, the micro-Raman analysis results from all of the eight different vibrational moieties of ZIF-8 display highly linear relationships between particle concentration and SERS intensity, verifying that the spatially aligned configuration and periodicity of these moieties within ZIF-8 generate quantitative SERS signals. Finally, it was shown that the characteristic Raman peaks of 2-mIM ligands from the ZACS NCs can be used to detect and differentiate various targets of interest. This opens a new paradigm for versatile plasmonic porous materials.

키워드
ChemistryRaman scatteringFingerprint (computing)Raman spectroscopyCore (optical fiber)Shell (structure)MetalNanotechnologyMoleculeOptics
타입
article
IF / 인용수
- / 4
게재 연도
2025

주식회사 디써클

대표 장재우,이윤구서울특별시 강남구 역삼로 169, 명우빌딩 2층 (TIPS타운 S2)대표 전화 0507-1312-6417이메일 info@rndcircle.io사업자등록번호 458-87-03380호스팅제공자 구글 클라우드 플랫폼(GCP)

© 2026 RnDcircle. All Rights Reserved.