Thermal behaviour of nanosilver doped gallium flexible conductor for biomedical application

11th Curtin University Technology, Science and Engineering (CUTSE) International Conference

工业技术（总论）

Yong, Sheena J.^1 ; Anwar, Mahmood^1 ; Islam, Sumaiya^1 ; Debnath, Sujan^1

Department of Mechanical Engineering, Curtin University, CDT 250, Sarawak, Miri

98009, Malaysia^1

关键词: Anti-microbial properties;    Biomedical applications;    Electrical conductivity;    Flexible conductors;    Homogeneous surfaces;    Medical community;    Thermal behaviours;    Thermal parameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/495/1/012083/pdf
DOI  :  10.1088/1757-899X/495/1/012083

学科分类：工业工程学

来源: IOP

【 摘 要 】

Gallium has been of interest in the medical community in the past decades due to its flexibility, non-toxic and anti-microbial property. In addition to its ductility, gallium makes a reasonable choice for the approach of a flexible conductor but it has a relatively low electrical conductivity as compared with other common metals which restricts usage in bio-sensors as well as other biomedical applications. In order to address such issue, a novel method was investigated using nanosilver doped gallium for enhancing charge transfer ability in the gallium metal matrix. Nanosilver has been ideal dopant due to its characteristics of highest electrical conductivity where nanoscale enables better diffusibility into the gallium matrix. The experiments were carried out to identify the effective thermal parameters which were temperature and heating duration for nanosilver doped gallium at three different temperatures, 250°C, 500°C, and 1000°C. Nevertheless, each heating duration were also in three different level, 6 hours, 12 hours, and 24 hours. All samples were tested in terms of surface morphology using an optical microscope. It was revealed that among the three temperatures, 1000°C showed better homogeneous surface morphology. It was also revealed that longer heating time promotes higher diffusion of nanosilver particles into gallium. The effective heating duration was observed to be 24 hours in terms of better homogeneity of surface morphology. Nevertheless, such findings had laid the foundation of better doping process of nanosilver into gallium to achieve a flexible conductor that can widely benefit in biomedical application.