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Photoresponsive Hydrogen-Bonded Organic Frameworks-Enabled Organic Photoelectrochemical Transistors for Sensitive Bioanalysis
Analytical Chemistry ( IF 6.7 ) Pub Date : 2024-01-22 , DOI: 10.1021/acs.analchem.3c04875
Peiying Yin 1, 2 , Zheng Li 2 , Qiuhua Wu 1 , Jin Hu 2 , Feng-Zao Chen 3 , Guangxu Chen 4 , Peng Lin 5 , De-Man Han 3 , Wei-Wei Zhao 2
Affiliation  

A facile route for exponential magnification of transconductance (gm) in an organic photoelectrochemical transistor (OPECT) is still lacking. Herein, photoresponsive hydrogen-bonded organic frameworks (PR-HOFs) have been shown to be efficient for gm magnification in a typical poly(ethylene dioxythiophene):poly(styrenesulfonate) OPECT. Specifically, 450 nm light stimulation of 1,3,6,8-tetrakis (p-benzoic acid) pyrene (H4TBAPy)-based HOF could efficiently modulate the device characteristics, leading to the considerable gm magnification over 78 times from 0.114 to 8.96 mS at zero Vg. In linkage with a DNA nanomachine-assisted steric hindrance amplification strategy, the system was then interfaced with the microRNA-triggered structural DNA evolution toward the sensitive detection of a model target microRNA down to 0.1 fM. This study first reveals HOFs-enabled efficient gm magnification in organic electronics and its application for sensitive biomolecular detection.

中文翻译:


用于灵敏生物分析的光响应氢键有机框架有机光电化学晶体管



有机光电化学晶体管(OPECT)中跨导( g m )指数放大的简便途径仍然缺乏。在此,光响应氢键有机框架(PR-HOF)已被证明在典型的聚(乙烯二氧噻吩):聚(苯乙烯磺酸盐)OPECT中对于g m放大倍数是有效的。具体来说,450 nm 光刺激基于 1,3,6,8-四(对苯甲酸)芘 (H4TBAPy) 的 HOF 可以有效地调节器件特性,导致g m放大倍数从 0.114 到 8.96 超过 78 倍。零V g时的毫秒。与 DNA 纳米机器辅助的空间位阻扩增策略相结合,该系统随后与 microRNA 触发的结构 DNA 进化接口,以实现对低至 0.1 fM 的模型目标 microRNA 的灵敏检测。这项研究首先揭示了有机电子学中 HOF 实现的高效g m放大及其在灵敏生物分子检测中的应用。
更新日期:2024-01-22
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