Abstract
Owing to their large specific surface, favorable electrical conductivity, and excellent electrocatalytic capabilities, two-dimensional transition metal dichalcogenides have received considerable attention in the field of biosensors. On the basis of these properties, we developed a portable and disposable enzyme-based biosensor for paraoxon detection using a metallic MoS2 nanosheets modified screen-printed electrode (SPE). The exfoliated ultrathin metallic MoS2 nanosheets can accelerate the electron transfer on electrode surface and contribute to the immobilization of acetylcholinesterase (AChE) via the cross-linking of glutaraldehyde. Electrodeposited gold nanoparticles (AuNPs) on SPE were used to immobilize MoS2 nanosheets through the interaction between Au atoms on AuNPs and S atoms on MoS2. Using acetylcholine as the substrate, AChE can catalyze the formation of electroactive thiocholine and further generate the redox current. In the presence of paraoxon, the activity of AChE can be inhibited, making the related electrochemical signals weaken. Under the optimized conditions, this electrochemical biosensor exhibited a favorable linear relationship with the concentration of paraoxon from 1.0 to 1000 μg L-1, with the detection ...Continue Reading
References
Jul 3, 2010·Chemical Reviews·Yuqing MiaoJun-Jie Zhu
Apr 6, 2012·Analytical Chemistry·Dingbin LiuXingyu Jiang
Feb 28, 2013·ACS Nano·Hai LiHua Zhang
Apr 5, 2014·Accounts of Chemical Research·Hai LiHua Zhang
May 3, 2014·The Analyst·N FrančičA Lobnik
Feb 11, 2016·Nature Communications·Xiumei GengTar-Pin Chen
Mar 19, 2016·Food Chemistry·Mojtaba ShamsipurMahnaz Ghambarian
Jun 18, 2016·Biosensors & Bioelectronics·Jing BaoYu Lei
Jun 28, 2016·Analytical and Bioanalytical Chemistry·Qiqi ZhengYibin Ying
Sep 25, 2016·Food Chemistry·Tomasz Rejczak, Tomasz Tuzimski
Oct 11, 2016·Archives of Toxicology·Sara Mostafalou, Mohammad Abdollahi
Nov 8, 2016·Biosensors & Bioelectronics·Hasan BagheriAlireza Shahriyari
Feb 6, 2017·Analytical Biochemistry·Jyotsana MehtaAkash Deep
Apr 5, 2017·Journal of Separation Science·Jingjing WangYi Zhang
May 20, 2017·Sensors·Vijay Deep BhattPaolo Lugli
May 20, 2017·Biosensors & Bioelectronics·Majid Arvand, Aazam A Mirroshandel
Jun 7, 2017·ACS Nano·Muhammad Zafir Mohamad NasirMartin Pumera
Citations
Apr 3, 2019·Small·Yu WuYuehe Lin
May 22, 2020·Bulletin of Environmental Contamination and Toxicology·Qi YangYadong Yu
Aug 18, 2020·Mikrochimica Acta·Zhihe QingRonghua Yang
Nov 9, 2020·Bioprocess and Biosystems Engineering·Haowei DongXia Sun
Jul 7, 2020·The Science of the Total Environment·Chao ZhangYibin Ying
Oct 6, 2020·Biosensors & Bioelectronics·Fengnian ZhaoJianfeng Ping
Jan 23, 2021·The Analyst·Yao YaoLianhui Wang
Nov 19, 2020·Chemical Society Reviews·Nasuha RohaizadMartin Pumera
Apr 4, 2021·International Journal of Molecular Sciences·Iruthayapandi Selestin RajaDong Wook Han
May 7, 2021·Analytical Methods : Advancing Methods and Applications·Tianlin Wang, Yaqing Liu
Jun 11, 2021·Analytical Chemistry·Kai NiuJiping Chen
Jun 8, 2021·ACS Omega·Yan ZhangYasushi Hasebe
Feb 23, 2019·Analytical Chemistry·Qingwen HuangZheng Han
May 6, 2020·ACS Applied Materials & Interfaces·Fengnian ZhaoRaffaele Mezzenga
Sep 7, 2021·Analytical Methods : Advancing Methods and Applications·Monika BhattuDeepika Kathuria
Jan 4, 2022·Analytical Chemistry·Min LiuChengguo Hu