Collapse-enhanced SERS effect of self-crosslinked plasmonic starch aerogels for sensitive detection of food contaminants.

• Tác giả: Ke-Jing Huang, Yan-Dan Qin, Ri-Hui Su, Xue-Cai Tan, Jing-Xiang Wang, Jun Yan, Shu-Fang Zhang, Song-Song Zhao, Wei-Wei Zhu
• Ngôn ngữ: eng
• Ký hiệu phân loại: 658.382 Health and safety programs
• Thông tin xuất bản: Netherlands : International journal of biological macromolecules , 2025
• Bộ sưu tập: NCBI
• ID: 680806

Tóm tắt

A flexible 3D plasmonic starch aerogel substrate was fabricated for susceptible detection of thiabendazole (TBZ) and doxycycline hydrochloride (DH). Based on the unique structure features of starch, an aerogel with high porosity and a large specific surface area was formed without any extra cross-linking agents. Silver nanoparticles (Ag NPs) uniformly distribute throughout starch aerogel and generate dense hot spots while aerogel structure collapses, which leads to significant SERS enhancement. The as-prepared aerogel substrate exhibits good SERS activity with a low detection limit of 1 × 10