State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Energy, College of Materials, Department of Physics, Xiamen University, Xiamen 361005, China.
Published: November 2024
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Article Abstract
As a nondestructive and ultrasensitive technique, surface-enhanced Raman spectroscopy (SERS) has captivated the attention of the global scientific community for over 50 years. Among the various spectroscopic techniques derived from SERS, shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) stands as a cutting-edge advancement. The innovative and versatile core-shell nanoparticle structures used in SHINERS have emerged as an ideal platform for interfacial research, offering high sensitivity and broad applicability across diverse materials and single-crystal surfaces. Consequently, SHINERS has seen widespread adoption in pivotal fields, such as interface chemistry, electrocatalysis, biomedicine, materials, and food safety. In this Perspective, we outline the evolutionary journey of SHINERS, delve deep into its applications in fundamental research for interface characterization and catalysis, and explore its practical utility in critical areas of food safety and biomedicine analysis. Additionally, we map out the prospective trajectory and future milestones that await SHINERS as it continues to revolutionize the landscape of scientific exploration.
Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou, China.
() was a gram-positive anaerobic in the gut, exhibiting clinical manifestations ranging from mild diarrhoea to fatal pseudomembranous colitis. infection (CDI) remains a serious public health problem and accounted for an estimated 360,075 cases in the United States in 2021. It has attracted the utmost attention of the world health organization (WHO).
This article studies the synthesis, as well as the structural, vibrational, and optical properties of Eu-doped ZnO quantum dots (QDs) and investigates the energy transfer mechanism from the ZnO host to Eu ions using Reisfeld's approximation. Eu-doped ZnO QDs at varying concentrations (0-7%) were successfully prepared using a wet chemical method. The successful doping of Eu ions into the ZnO host lattice, as well as the composition and valence states of the elements present in the sample, were confirmed through X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analyses.
We have grown (111)- and (001)-oriented NiO thin films on (0001)-Sapphire and (001)-MgO substrates
using pulsed laser deposition (PLD), respectively. DC magnetic susceptibility measurements underline
that the Néel temperatures of the samples are beyond room-temperature. This is further confirmed by
the presence of two-magnon Raman scattering modes in these films in ambient conditions.
Micromodification in bulk undoped polymethylmethacrylate (PMMA) by single focused (numerical aperture (NA) = 0.25), 1030-nm 250-fs laser pump pulses was explored by pump self-transmittance; optical, 3D-scanning confocal photoluminescence (PL); Raman micro-spectroscopy; and optical polarimetric and interferometric microscopy. Starting from the threshold pulse energy = 0.
A highly sensitive aptamer sensor (aptasensor) is proposed based on metal-organic frameworks-silver nanoparticles (AgNPs@MOF) to detect sulfadimethoxine (SDM) by surface-enhanced Raman spectroscopy (SERS). AgNPs@MOF with SERS activity was successfully fabricated by synthesizing AgNPs in situ on the surface of MIL-101(Fe), and SDM aptamer and Raman reporter 4-aminophenthiophenol (4-ATP) were selected as specific recognition elements and signal probes, respectively. When SDM was absent, the SDM aptamers were effectively adsorbed on the surface of AgNPs@MOF, thus keeping AgNPs@MOF in a dispersed state, resulting in a weakened SERS signal of 4-ATP.
