Highly Ordered and Crystalline Cu Nanowires in Anodic Aluminum Oxide Membranes for Biomedical Applications

Abstract

1D metallic nanostructures have become a subject of intensive research due to their potential application in the biomedical field such as sensing, imaging, drug delivery, and biodevices. Herein, anodic aluminum oxide (AAO) template is used to electrochemically grow the highly crystalline Cu nanowires. The electrodeposition potential for copper solution is identified by cyclic voltammetry. The Cu nanowire‐deposited AAO template is further characterized using field emission scanning electron microscope (FESEM), energy dispersive X‐ray (EDX) spectroscopy, wavelength dispersive X‐ray fluorescence (WDXRF) spectroscopy, X‐ray diffraction (XRD), and electrochemical impedance spectroscopy (EIS). The Cu‐deposited AAO template is tested for antibacterial activity against different microorganisms (including both gram positive as well as gram negative). Further, the assessment of the cytotoxic nature of Cu nanowires is a fundamental step for their application in the biomedical field. The favorable properties of Cu‐deposited AAO template in terms of excellent antibacterial effects and low cytotoxicity promote their application in the biomedical field, especially for medical diagnosis.

Electrochemical Fabrication and Characterization of Palladium Nanowires in Nanoporous Alumina Templates

“…Electrochemical Impedance spectroscopy was performed on the palladium nanowire sample after deposition and clear drop in impedance at higher frequency was observed due to the capacitance of the barrier layer oxide between the nanowires and the aluminum substrate (see supplementary information is available online at stacks.iop.org/JES/167/122514/mmedia), which is in agreement with the literature. 21,40,41 Faradic processes resulting in masstransfer limitations can also contribute to the current decay during each pulse, similar to what the Cottrell equation predicts during a potential step experiment. The current pulses, where the negative pulses correspond to the depositing phase, were integrated to give the total cathodic and anodic charge transferred during the deposition.…”

Recent Progress of Fabrication, Characterization, and Applications of Anodic Aluminum Oxide (AAO) Membrane: A Review

“…The presented mushrooms arrangement of AuNps on epoxy pillars with reproducible sensitivity successfully demonstrated label-free DNA detection. Other nanostructures of different materials reported in literature formed using AAO template along with their applications are given in Table 3 [77][78][79][80][82][83][84][85][86][87][88][89][90][91][92][93][94][95][96][97][98].…”

“…provides applications of AAO in miscellaneous fields[57,61,65,66,94,171,[176][177][178][179][180][181][182][183][184][185][186][187][188][189].…”

Controlled synthesis of Cu-MOF possessing peroxidase-mimetic activity for the colorimetric detection of tetracycline in aqueous solution

“…Here, a 3-(4,5-dimethylthiazol-2yl)-2,5-diphenyl tetrazolium bromide (MTT) cell viability assay was preferred to examine the cytotoxicity of Cu-MOFs against HEK293 cells. 31 To culture the cell lines, Dulbecco modified eagle medium (DMEM) was used with 1% v/v antibiotics and 10% v/v fetal bovine serum (FBS) at 37 1C in CO 2 and humidified air (1 : 19). Different amounts of the samples in dimethyl sulfoxide (DMSO) of cell culture grade were added to the cells after ensuring the confluence of HEK 293 cells (B70%) in s 96-well plate.…”