Rational Design of Reversible Redox Shuttle for Highly Efficient Light-Driven Microswimmer

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

12 Scopus Citations
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Author(s)

  • Jizhuang Wang
  • Ze Xiong
  • Ming Liu
  • Xiao-meng Li
  • Jing Zheng
  • Xiaojun Zhan
  • Weiting Ding
  • Jianan Chen
  • Xuechen Li
  • Xiang David Li
  • Jinyao Tang

Detail(s)

Original languageEnglish
Pages (from-to)3272-3280
Journal / PublicationACS Nano
Volume14
Issue number3
Online published3 Mar 2020
Publication statusPublished - 24 Mar 2020
Externally publishedYes

Abstract

The light-driven micro/nanomotor (LMNM) is machinery that harvests photon energy and generates self-propulsion in varieties of liquid media. Though visions are made that these tiny swimming machines can serve future medicine for accurate drug delivery and noninvasive microsurgery, their biomedical application is still impeded by the insufficient propulsion efficiency. Here we provide a holistic model of LMNM by considering (i) photovoltaic, (ii) electrochemical, and (iii) electrokinetic processes therein. Such a quantitative model revealed the pivotal role of reaction kinetics and diffusion properties of shuttle ions in the propulsion efficiency of LMNM. With the guidance of this model, a group of ferrocene-based reversible redox shuttles, which generate slow-diffusion ions, was identified, showcasing a high locomotion velocity of ∼500 μm/s (∼100 body length per second) at an ultralow concentration (70 μM). Owing to the in-depth understanding of the fundamental energy conversion processes in LMNM, we anticipate that the development of other high-performance supporting chemicals and LMNM systems will be greatly motivated, foreseeing the advent of LMNM systems with superior efficiency.

Research Area(s)

  • biocompatibility, efficiency, light-driven microswimmer, redox shuttles, silicon nanowire

Citation Format(s)

Rational Design of Reversible Redox Shuttle for Highly Efficient Light-Driven Microswimmer. / Wang, Jizhuang; Xiong, Ze; Liu, Ming; Li, Xiao-meng; Zheng, Jing; Zhan, Xiaojun; Ding, Weiting; Chen, Jianan; Li, Xuechen; Li, Xiang David; Feng, Shien-Ping; Tang, Jinyao.

In: ACS Nano, Vol. 14, No. 3, 24.03.2020, p. 3272-3280.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review