0D-2D heterostructures of Au nanoparticles and layered MoS2 for simultaneous detections of dopamine, ascorbic acid, uric acid, and nitrite

作者：Zou, Hao Lin; Li, Bang Lin; Luo, Hong Qun^*; Li, Nian Bing^*

来源：Sensors and Actuators B: Chemical , 2017, 253: 352-360.

DOI：10.1016/j.snb.2017.06.158

• Heterostructures
• MoS2 nanosheets
• Gold nanoparticles
• Biomolecules
• Biosensors

Recently, hybrids of layered MoS2 are highly encouraged to handle the puzzles, taken by the weakness of two-dimensional (2D) transition metal dichalcogenides (TMDC), including low conductivity and lack of active edge sites. Considering the merits of zero-dimensional (0D) nanomaterials, the emerging heterostructures based on 0D Au nanoparticles and 2D MoS(2)nanosheets (MoS2-NSs) are successfully obtained via a spontaneously reduced process with the addition of HAuCl4 in exfoliated MoS2-NSs aqueous dispersions. Significantly, with the combination of high conductivity rate and large active surface, the synthetic effect results in a diversity of improved properties of 0D-2D heterostructures, not only exhibiting improved stability, but also remarkably enhancing the selectivity and sensitivity for electrochemically simultaneous detections of dopamine, ascorbic acid, uric acid, and nitrite. Our current achievements of 0D-2D heterostructures contribute fresh ideas to the overall development of more advanced future TMDC based sensors.

• 出版日期2017-12
• 单位西南大学