电极
胶体金
纳米颗粒
材料科学
纳米技术
电化学
电化学气体传感器
眼泪
一氧化氮
氧化物
碳纤维
工作电极
化学工程
冶金
化学
复合材料
工程类
医学
有机化学
外科
物理化学
复合数
作者
Dulal Chandra Patra,Suvra Prakash Mondal
出处
期刊:ACS applied bio materials
[American Chemical Society]
日期:2024-07-15
标识
DOI:10.1021/acsabm.4c00425
摘要
Nitric oxide (NO) in human tears regulates numerous ocular surface processes, such as tear generation, corneal wound healing, conjunctival vascular tone, and so forth. Any deviation from its normal concentration is linked to various ocular syndromes, including microbial keratitis, conjunctivitis, pterygium, dry eye, retinitis, glaucoma, and so forth. Therefore, precise monitoring of NO in tears can be considered as a potential biomarker for ocular diseases. Here, we report a highly sensitive and selective electrochemical NO sensor using carbon ink-based electrodes. Counter, working (WE), and reference electrodes have been designed and painted on a butter paper by using carbon ink. To improve the sensing performance, the WE has been modified with a gold nanoparticle (Au NP)-deposited carbon cloth (CC). Such a paper-based sensor demonstrated high sensitivity of ∼0.34 μA μM
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