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Novel Self-Powered Biosensor Based on Au Nanoparticles @ Pd Nanorings and Catalytic Hairpin Assembly for Ultrasensitive miRNA-21 Assay

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成果类型:
期刊论文
作者:
Shen, Yan;Wang, Futing;Li, Yujin;Li, Jingxian;Xiang, Shi;...
通讯作者:
Cai, R;Yang, HF
作者机构:
[Li, Jingxian; Shen, Yan; Li, Yujin; Wang, Futing; Yang, Yan; Xiang, Shi; Cai, Ren; Tan, Weihong] Hunan Univ, Coll Mat Sci & Engn, Coll Chem & Chem Engn, Coll Biol,State Key Lab Chemo Biosensing & Chemome, Changsha 410082, Peoples R China.
[Li, Yujin] Xinyang Normal Univ, Coll Chem & Chem Engn, Xinyang 464000, Peoples R China.
[Tan, Weihong] Univ Chinese Acad Sci, Canc Hosp, Zhejiang Canc Hosp, Chinese Acad Sci,Hangzhou Inst Med HIM, Hangzhou 310022, Zhejiang, Peoples R China.
[Tan, Weihong] Shanghai Jiao Tong Univ, Renji Hosp, Inst Mol Med, Sch Med, Shanghai 200240, Peoples R China.
[Tan, Weihong] Shanghai Jiao Tong Univ, Coll Chem & Chem Engn, Shanghai 200240, Peoples R China.
通讯机构:
[Yang, HF ] U
[Cai, R ] H
Hunan Univ, Coll Mat Sci & Engn, Coll Chem & Chem Engn, Coll Biol,State Key Lab Chemo Biosensing & Chemome, Changsha 410082, Peoples R China.
Univ South China, Sch Publ Hlth, Hengyang Med Sch, Hunan Key Lab Typ Environm Pollut & Hlth Hazards, Hengyang 421001, Peoples R China.
语种:
英文
期刊:
Analytical Chemistry
ISSN:
0003-2700
年:
2024
卷:
96
期:
36
页码:
14508-14515
基金类别:
Hunan Provincial Natural Science Foundation of China [2024JJ5348, 2021JJ20020]; National Natural Science Foundation of China [22004032]
机构署名:
本校为通讯机构
院系归属:
公共卫生学院
摘要:
An ultrasensitive self-powered biosensor is constructed for miRNA-21 detection based on Au nanoparticles @ Pd nanorings (Au NPs@Pd NRs) and catalytic hairpin assembly (CHA). The Au NPs@Pd NRs possess excellent electrical conductivity to improve the electron transfer rate and show good elimination of byproduct H(2)O(2) to assist glucose oxidase (GOD) to catalyze glucose; CHA is used as an amplification strategy to effectively enhance the sensitivity of the biosensor. To further amplify the output signal, a capacitor is integrated into the self-powered biosensor. With multiple signal amplificati...

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