Journal
ACS APPLIED NANO MATERIALS
Volume 5, Issue 4, Pages -Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsanm.2c00375
Keywords
3D SERS substrate; chitosan aerogel; ultrasensitive; Ag nanoparticles; quantitative detection
Funding
- National Key Research and Development Program of China [2017YFA02 04600]
- National Natural Science Foundation of China [11874288]
Ask authors/readers for more resources
This study demonstrates the use of chitosan aerogel decorated with Ag nanoparticles as a SERS substrate with high sensitivity and reproducibility. The proposed technique has potential applications in various fields.
Surface-enhanced Raman scattering (SERS) has attracted widespread attention because of its high sensitivity and label-free detection capabilities. Here, chitosan aerogels decorated with Ag nanoparticles (CAA) are used as a three-dimensional (3D) SERS substrate to achieve ultrasensitive detection. The CAA produces a high specific surface area and high porosity, which generates numerous hot spots and adsorption sites for SERS. With crystal violet as a probe molecule, a SERS enhancement factor of 1.4 x 109 was realized, with a detection limit of 10-13 M. Furthermore, quantitative detection in the 10-5-10-10 M range and good reproducibility were achieved. This work proposes a cost-effective aerogel-based SERS substrate with high sensitivity and reproducibility.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available