Xin Chen, Xiaoyun Li, Yan Zhang, Miaorong Zhang, Jianguo Tang
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引用次数: 0
Abstract
A novel electrochemical sensor for catechol (CC) was developed by electrodepositing gold nanoparticles (AuNPs) on porous gallium nitride (PGaN) electrode, which was fabricated via photoelectrochemical etching. The fabricated AuNPs/PGaN electrode showed good electro-oxidation activity for CC, and the linear detection range, sensitivity and detection limit of AuNPs/PGaN electrode for CC were 0.1–49.8 µM, 0.2451 µA µM−1 and 72 nM, respectively. Moreover, AuNPs/PGaN electrode had good selectivity, favorable stability and satisfactory reproducibility for the detection of CC. Further, AuNPs/PGaN electrode exhibited excellent electro-oxidation capacity for CC in tap water sample, which demonstrated the good practicability of AuNPs/PGaN electrode.
期刊介绍：
The objective of the Journal of Nanoparticle Research is to disseminate knowledge of the physical, chemical and biological phenomena and processes in structures that have at least one lengthscale ranging from molecular to approximately 100 nm (or submicron in some situations), and exhibit improved and novel properties that are a direct result of their small size.
Nanoparticle research is a key component of nanoscience, nanoengineering and nanotechnology.
The focus of the Journal is on the specific concepts, properties, phenomena, and processes related to particles, tubes, layers, macromolecules, clusters and other finite structures of the nanoscale size range. Synthesis, assembly, transport, reactivity, and stability of such structures are considered. Development of in-situ and ex-situ instrumentation for characterization of nanoparticles and their interfaces should be based on new principles for probing properties and phenomena not well understood at the nanometer scale. Modeling and simulation may include atom-based quantum mechanics; molecular dynamics; single-particle, multi-body and continuum based models; fractals; other methods suitable for modeling particle synthesis, assembling and interaction processes. Realization and application of systems, structures and devices with novel functions obtained via precursor nanoparticles is emphasized. Approaches may include gas-, liquid-, solid-, and vacuum-based processes, size reduction, chemical- and bio-self assembly. Contributions include utilization of nanoparticle systems for enhancing a phenomenon or process and particle assembling into hierarchical structures, as well as formulation and the administration of drugs. Synergistic approaches originating from different disciplines and technologies, and interaction between the research providers and users in this field, are encouraged.
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