Characterization on Three‐Dimensional Trajectory of Disk‐Like Gold‐Nickel‐Platinum Nanomotor Using Digital Holographic Imaging,ChemistrySelect

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Characterization on Three‐Dimensional Trajectory of Disk‐Like Gold‐Nickel‐Platinum Nanomotor Using Digital Holographic Imaging
ChemistrySelect ( IF 1.9 ) Pub Date : 2018-09-05 , DOI: 10.1002/slct.201801534
Liangxing Hu ₁ , Shakil Rehman ₂ , Kai Tao ₃ , Jianmin Miao ₁

Affiliation

Self‐propelling disk‐like nanomotor consisting of three metallic segments: a non‐catalytic gold (Au), central magnetic nickel (Ni), and a catalytic platinum (Pt), is designed and fabricated with a high‐efficiency layer‐by‐layer (LbL) deposition method based on the nano‐electro‐mechanical systems (NMES) technology. A bubble propulsion mechanism, resulting from bubble growth and collapse, is proposed to explain the locomotion of the nanomotor suspended in hydrogen peroxide (H₂O₂) solution. The autonomous propulsion of Au‐Ni‐Pt nanomotor is characterized by digital holographic imaging and analyzed using Matlab, revealing that oxygen (O₂) bubbles are generated and detached from the surface of Pt. In addition, the holographic images are for the first time used to reconstruct the instantaneously three‐dimensional (3D) location and trajectory of the nanomotor.

中文翻译：

利用数字全息成像技术表征盘状金镍铂铂纳米电机的三维轨迹

自行设计的盘状纳米电机由三个金属部分组成：非催化金（Au），中心磁性镍（Ni）和催化铂（Pt），其设计和制造均采用高效层。基于纳米机电系统（NMES）技术的金属层（LbL）沉积方法。为了解释悬浮在过氧化氢（H ₂ O ₂）溶液中的纳米马达的运动，提出了一种由于气泡的生长和破裂而引起的气泡推进机制。Au-Ni-Pt纳米马达的自主推进通过数字全息成像进行表征，并使用Matlab进行分析，揭示出氧（O ₂气泡的产生并从铂的表面脱离。此外，全息图像首次用于重建纳米马达的瞬时三维（3D）位置和轨迹。

更新日期：2018-09-05

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