研究目的
Investigating the synthesis of hexagonal Ag nanoplates with long and ultra-narrow gaps for enhanced SERS detection sensitivity.
研究成果
The study successfully synthesized hexagonal Ag nanoplates with long and ultra-narrow gaps, demonstrating high sensitivity in SERS detection. The open nanogaps allow easy access of probe molecules and exhibit excellent sensitivity, suggesting a new direction in designing SERS nanostructures.
研究不足
The technical constraints include the difficulty in characterizing micropores in the polymer shell and the dynamic nature of ligand binding at the nanogap. Potential areas for optimization include the uniformity of gap formation and the enhancement of SERS sensitivity.
1：Experimental Design and Method Selection:
Seed-mediated growth method was used to synthesize hexagonal Ag nanoplates with long and ultra-narrow gaps.
2：Sample Selection and Data Sources:
Ag nanospheres (20 nm in diameter) encapsulated by PSPAA shell (10 nm in thickness) were used as seeds.
3：List of Experimental Equipment and Materials:
AgNO3, ascorbic acid, sodium citrate, H2O2, NH2OH, and PSPAA.
4：Experimental Procedures and Operational Workflow:
AgNO3 was reduced by ascorbic acid in the presence of Ag@PSPAA core-shell nanoparticles, with sodium citrate and H2O2 as stabilizing ligand and etchant, respectively.
5：Data Analysis Methods:
SEM, TEM, HRTEM, SAED, AFM, and SERS were used for characterization.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
