文献类型：期刊文献

英文题名：An Envelope Algorithm for Single Nanoparticle Collision Electrochemistry

作者：Xu, Chun-Yu[1];Yu, Ru-Jia[2,3];Ni, Xue[1];Xu, Su-Wen[4];Fu, Xi-Xin[1];Wan, Yong-Jing[1];Ying, Yi-Lun[2,3];Long, Yi-Tao[2]

机构：[1]East China Univ Sci & Technol, Sch Informat Sci & Engn, Shanghai 200237, Peoples R China;[2]Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Analyt Chem Life Sci, Nanjing 210023, Jiangsu, Peoples R China;[3]Nanjing Univ, Chem & Biomed Innovat Ctr, Nanjing 210023, Jiangsu, Peoples R China;[4]East China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

年份：2021

卷号：39

期号：7

起止页码：1936

外文期刊名：CHINESE JOURNAL OF CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000657386100001)】；

基金：This research was supported by the National Natural Science Foundation of China (Grant Nos. 21906054, 21922405 and 22027806) and the Fundamental Research Funds for the Central Universities (No. 14380239).

语种：英文

外文关键词：Analytical methods; Electrochemistry; Nanoparticles; Savitzky-Golay filter; Single nanoparticle collision

摘要：Main observation and conclusion Single nanoparticle collision has attracted great attention in the last several years to reveal the electron transfer and motion trajectories of individual particles at the electrode surface. An envelope algorithm is proposed for further reading and demonstrating the corresponding current signals, which integrates baseline correction, peak identification and Savitzky-Golay filter. It is employed for data analysis of the single AgNPs collision on a wireless nanopore electrode to eliminate the current noise and accurately calculate the integrated charges in each current spike. The practicability and robustness of the algorithm are verified under additive Gaussian white noise with the signal-to-noise ratio higher than 5. By comparing with traditional Gaussian peak model, the algorithm here shows comparable performance for the peak identification and integrated charge calculation. These results signify a big step from manual Gaussian fitting to automatically data processing method, which facilitates a fast acquisition of intrinsic features in single entity electrochemistry.