Fabrication and characterization of Au-Fe/Ni/(Mo/Co) alloy microsphere motors (AMSM) based on physical vapor deposition
Au-Fe/Ni/(Mo/Co) alloy microsphere motors (AMSM),having an average diameter of 7 ~ 9 μm,were fabricated though a rapid and effortless method than the template direct electroplating (TDEP),which only requires physical vapor deposition (PVD) of inert metal coat on commercially available microspheres; thus,several kinds of AMSM with different alloy composition can be manufactured readily.Via co-catalytic decomposing reaction in the mixed fuel of hydrogen peroxide and hydrazine,the ejection of oxygen bubbles generated from the Fe/Ni/ (Mo/Co) alloy hemisphere provides a powerful directional propulsion.The AMSMs moving ability closely depends upon the content of mixed fuel and the composition of alloy,especially the content of nickel.The AMSM can move as fast as 548.63 μm/s (ca.64 body-lengths/s).Because of the permalloy composition,the AMSM also can be guided by the magnetic force besides controlled with the propelling force generated by the bubble thrust.Compared with the nanowire motor,the AMSM could facilitate different biomedical applications,such as targeted drug delivery in future research,because of its bigger specific surface area.
Fe/Ni/(Mo/Co) alloy AMSM Physical vapor deposition Mixed fuel Magnetic
Ju Li Sen Yang Jin-Zhi Jiang Qing Xiao Fen-Zeng Yao Jian-Jun Sun
Ministry of Education Key Laboratory of Analysis and Determination for Food Safety,Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety,College of Chemistry,Fuzhou University,Fuzhou 350108,China
国际会议
南京
英文
245-250
2016-12-23（万方平台首次上网日期，不代表论文的发表时间）