适体
啶虫脒
化学
胶体金
色谱法
纳米技术
纳米颗粒
分子生物学
杀虫剂
生物
材料科学
益达胺
农学
作者
Liran Tian,Xiangwei Song,Tianjiao Liu,Anfeng Li,Ning Yang,Hua Xia,Deming Dong,Zhen Song,Dapeng Liang
标识
DOI:10.1080/00032719.2023.2289088
摘要
Acetamiprid is mainly used to control pests. However, the residues of acetamiprid have resulted in significant negative effects on mammals. Many researchers are working on developing acetamiprid detection methods. In our study, four truncated aptamers were designed based on the secondary structure of the original aptamer. Molecular docking simulation of truncated aptamers confirmed that all of the truncated aptamers bind to acetamiprid, and their binding sites were identified. The affinity, sensitivity, and specificity of these truncated aptamers were measured by a spectrophotometric method with gold nanoparticles (AuNPs). Acetamiprid aptamers with 17-mer (Apt-J2) and 16-mer (Apt-J4) were successfully obtained, which show higher detection sensitivity and satisfactory specificity. Additionally, a spectrophotometric detection route superior to the original aptamer was explored, and the linear ranges were from 1 to 70 μM and 0.5 to 40 μM, respectively. The truncated aptamers were applied to the analysis of lake water, indicating that the aptamers have potential for practical analysis.
科研通智能强力驱动
Strongly Powered by AbleSci AI