A multifunctional nanozyme-based enhanced system for tert-butyl hydroquinone assay by surface-enhanced Raman scattering
文献类型： 外文期刊
作者： Yang, Dezhi 1 ; Li, Qiulan 1 ; Zhang, Qian 2 ; Wang, Yijie 1 ; Li, Hong 1 ; Tammina, Sai Kumar 4 ; Yang, Yaling 1 ;
作者机构： 1.Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan, Peoples R China
2.Yunnan Lunyang Technol Co Ltd, Kunming 650032, Yunnan, Peoples R China
3.Yunnan Acad Agr Sci, Inst Agroprod Proc, Kunming 650032, Yunnan, Peoples R China
4.Univ Hyderabad, Sch Phys, Hyderabad 500046, Telangana, India
关键词： Cu,I-doped carbon dots; AuNPs; Nanozyme; Multienzyme-like activity; TBHQ; Raman scattering; SERS
期刊名称：MICROCHIMICA ACTA （ 影响因子：6.408； 五年影响因子：5.888 ）
ISSN： 0026-3672
年卷期： 2022 年 189 卷 1 期
页码：
收录情况： SCI
摘要： An Au-based nanozyme composite (AuNPs/Cu,I) was constructed by using Cu,I-doped carbon dots (Cu,I-CDs) as the reducing agent as well as the nanozyme. Notably, AuNPs/Cu,I nanozyme not only possessed the intrinsic activity of mimicking enzymes of superoxide dismutase, peroxidase, and catalase at different conditions but was also employed as surface-enhanced Raman spectroscopy (SERS) enhancer. The combination of Cu,I-CDs and AuNPs promoted the electron transferability, leading to increased peroxidase-like activity and superoxide-like activity. Compared to the individual Cu,I-CDs and AuNPs nanozyme, the AuNPs/Cu,I composite demonstrated promising peroxidase-like activity by transferring electrons instead of generating OH. Interestingly, the multienzyme-like activity of AuNPs/Cu,I nanozyme could be finely tuned by changing the composition of Cu-0/Cu+ and Au. The tert-butyl hydroquinone (TBHQ) as the substrate could be catalyzed with AuNPs/Cu,I nanozyme to produce red substances, resulting in a significant Raman enhancement effect at the same time, showing good linear range from 0.11 to 10 mg L-1. Overall, the current investigation provides a flexible and controllable way to design multifunctional nanozymes along with the Raman enhancement strategy based on the catalysis of nanozyme.
- 相关文献
作者其他论文 更多>>
-
Specific colorimetric detection of methylmercury based on peroxidase-like activity regulation of carbon dots/Au NPs nanozyme
作者：Li, Qiulan;Li, Hong;Li, Kexiang;Gu, Yi;Wang, Yijie;Yang, Dezhi;Yang, Yaling;Yang, Dezhi;Li, Hong;Gao, Lei
关键词：Methylmercury; Nanozyme; Gold amalgamation; Peroxidase-like activity; Colorimetric
-
Elucidating Softening Mechanism of Honey Peach (Prunus persica L.) Stored at Ambient Temperature Using Untargeted Metabolomics Based on Liquid Chromatography-Mass Spectrometry
作者：Kong, Xiaoxue;Shen, Hui;Shi, Pingping;Yang, Fang;Yu, Lijuan;Kong, Xiaoxue;Luo, Haibo;Chen, Yanan;Li, Hong
关键词：honey peach; softening; untargeted metabolomics; LC-MS; metabolites
-
Effects of endogenous capsaicin stress and fermentation time on the microbial succession and flavor compounds of chili paste (a Chinese fermented chili pepper)
作者：Shi, Qiao;Tang, Huihua;Chen, Junfei;Wang, Xinrui;Liu, Biqin;Cai, Yingli;Li, Hong;Mei, Yuan;Zhao, Nan;Yang, Menglu
关键词：Capsaicin supplementation; Microbial diversity; Kazachstania; Volatile characteristics; Ethyl nonanoate
-
Fluorescence-SERS dual-mode for sensing histamine on specific binding histamine-derivative and gold nanoparticles
作者：Li, Kexiang;Li, Hong;Yang, Dezhi;Xiao, Feijian;Yang, Yaling;Li, Hong;Yin, Mongjia;Yang, Dezhi;Tammina, Sai Kumar
关键词：Surface-enhanced Raman scattering; Fluorescence; Sensor; Histamine; O-phthalaldehyde
-
Graphitic Carbon Nitride Nanosheets Decorated with Cu-Doped Carbon Dots for the Detection and Degradation of Phenolic Pollutants
作者：Li, Qiulan;Yang, Dezhi;Yang, Yaling;Yin, Qinhong;Li, Wanyi
关键词：copper-doped carbon dots; graphitic carbon nitride; oxidase-like activity; peroxidase-like activity; phenolic substances
-
Co-Application of 1-MCP and Laser Microporous Plastic Bag Packaging Maintains Postharvest Quality and Extends the Shelf-Life of Honey Peach Fruit
作者：Li, Xuerui;Qu, Yunhui;Li, Hong;Yu, Lijuan;Peng, Sijia;Yu, Renying;Luo, Haibo;Li, Puwang;Zhou, Chuang
关键词：honey peach fruit; soft; rot; preservation; shelf-life
-
Highly selective histamine assay via SERS: Based on the signal enhancement of carbon dots and the fluorescence quenching of gold nanoparticles
作者：Yang, Dezhi;Li, Hong;Li, Qiulan;Li, Kexiang;Xiao, Feijian;Yang, Yaling;Li, Hong;Yang, Dezhi
关键词：Histamine; Surface-enhanced Raman scattering; N,Zn-CDs/beta-CD; Fluorescence interference; Detection
