.png){kind=icon}
返回
Ionovoltaic urea sensor
.png){kind=icon}
PRE
AI
DOI：10.1016/j.nanoen.2018.12.028.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Urea detection has been studied extensively because urea is an important indicator in medical, environmental and industrial fields. Despite the considerable body of research in this area, limitations such as the need for an external power source and the complex operation of electrochemical flow cells remain. Herein, we introduce a novel urea sensing method that accomplishes urea detection with a single droplet of an analyte using a pH-sensitive ionovoltaic transducer and an enzyme attached glass probe. An ionovoltaic transducer converts ion dynamic phenomena at the solid-liquid interface directly into electrical signals without an external power source or additional electrochemical flow cells. With a single droplet of an analyte containing urea (140 mu L), the output voltage is inverted within two minutes by surface potential changes induced by the urea decomposition depending on urea concentration in the range of 1-50 mM. Furthermore, in a selective experiment with various biomolecules such as glucose, ascorbic acid, and lactic acid, the inversion of the output voltage occurred selectively only in the urea containing analyte, which confirmed the feasibility of the proposed unique biosensor. We believe that the combination of the ionovoltaic transducer and the enzyme attached probe will greatly broaden the scope of applications of this novel biosensor.
Keyword:
Ionovoltaic transducer
Urea sensor
Sensor
pH sensor
Ion-functional device
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
17.1
论文数:
1.2W
被引数:
13.0W
机构
引用论文
.png){kind=icon}
分享收藏Enzyme-polyelectrolyte multilayer assemblies on reduced graphene oxide field-effect transistors for biosensing applications用于生物传感应用的还原氧化石墨烯场效应晶体管上的酶-聚电解质多层组件
OAAI
OAAI分享收藏Fabric Active Transducer Stimulated by Water Motion for Self Powered Wearable Device水运动刺激的织物主动换能器，用于自供电可穿戴设备
PREAI
分享收藏
查看更多内容