Applications of ZnO Nanoflowers as Antimicrobial Agents for Escherichia coli and Enzyme-Free Glucose Sensor

作者：Umar Ahmad^*; Chauhan M S; Chauhan S; Kumar R; Sharma P; Tomar Kirti Janghu; Wahab R; Al Hajry A; Singh Dilbag

来源：Journal of Biomedical Nanotechnology, 2013, 9(10): 1794-1802.

DOI：10.1166/jbn.2013.1751

• ZnO Nanoflowers
• Antimicrobial Agents
• Escherichia coli
• Enzyme-Free Glucose Sensor

Well-crystalline ZnO nanoflowers were prepared by a facile solution process and their applications as an antimicrobial agent against Escherichia coli and enzyme-free glucose sensor have been studied. The morphological, structural, compositional, and optical properties of ZnO nanoflowers were characterized by various techniques, which confirmed the well-crystalline wurtzite hexagonal phase. The minimum inhibitory concentration of ZnO nanoflowers for inhibiting the growth of Escherichia coli was found to be 25 mu g/ml. ZnO nanoflowers were also tested as an efficient electron mediator for the fabrication of highly sensitive non-enzymatic glucose sensor, which exhibited a high sensitivity of similar to 411 mu A M-1 cm(-2) and detection limit of similar to 1.25 mM with a quick response time of similar to 10.0 S. The presented studies showed that ZnO nanomaterials can be efficiently used as an antimicrobial agent and a highly sensitive non-enzymatic glucose sensor.

• 出版日期2013-10