DataVXACS Applied Nano MaterialsPaper
journal article·2021-11-26

4-Aminothiophenol-Modulated Ag Growth on Au Nanoparticles for Detection of Nitrite

Jiaqi Chen, Ting Zhong, Xi Lu, Feng Zhao, Pan Wang, Xue Yu, Yuxin Yang, Fengyun Sun, Xiaochun Wu, Wei Feng

ACS Applied Nano Materials· Volume 4· Issue 11
Publisher page
Source abstract

Abstract

Nitrite (NO2–) in water and food is a potential threat to human health. The determination of nitrite content is very significant for people’s life safety. Here, 4-aminothiophenol (4-ATP)-modulated silver growth on gold nanospheres (GNSs) was designed to detect nitrite. It was verified that the exposed amino groups of 4-ATP molecules on GNSs can accelerate Ag overgrowth. On the contrary, the deamination reaction of 4-ATP with nitrite can reduce the Ag overgrowth rates. 4-ATP modified on GNSs can not only increase the spectrophotometry response of nitrite with a low limit of detection (LOD = 36 nM) but also obtain a wide and flexible detection range (0–60 μM). In addition, this method showed good selectivity to nitrite. The excellent optical response, the sharp contrast between the acceleration and deceleration of Ag growth, and the customizable basic setting of the sensing ligands can provide a universal design scheme for high-performance detection methods.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Advanced Nanomaterials in Catalysis · Advanced biosensing and bioanalysis techniques · Nanocluster Synthesis and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Materials Engineering, School of Mechanical Engineering, Chengdu University, Chengdu 610106, Sichuan, PR China

Institute for Advanced Materials Deformation and Damage from Multi-Scale, Chengdu University, Chengdu 610106, PR China

CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, PR China

Funding

Ministry of Science and Technology of the People's Republic of China · Chengdu University · National Natural Science Foundation of China · Chinese Academy of Sciences · Chengdu Science and Technology Benefit to the People Research and Development Project · Applied Basic Research Project of Sichuan Province

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