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Multifunctional and biodegradable self-propelled protein motors.

Abstract：

:A diversity of self-propelled chemical motors, based on Marangoni propulsive forces, has been developed in recent years. However, most motors are non-functional due to poor performance, a lack of control, and the use of toxic materials. To overcome these limitations, we have developed multifunctional and biodegradable self-propelled motors from squid-derived proteins and an anesthetic metabolite. The protein motors surpass previous reports in performance output and efficiency by several orders of magnitude, and they offer control of their propulsion modes, speed, mobility lifetime, and directionality by regulating the protein nanostructure via local and external stimuli, resulting in programmable and complex locomotion. We demonstrate diverse functionalities of these motors in environmental remediation, microrobot powering, and cargo delivery applications. These versatile and degradable protein motors enable design, control, and actuation strategies in microrobotics as modular propulsion sources for autonomous minimally invasive medical operations in biological environments with air-liquid interfaces.

journal_name

Nat Commun

journal_title

Nature communications

authors

Pena-Francesch A,Giltinan J,Sitti M

doi

10.1038/s41467-019-11141-9

subject

Has Abstract

pub_date

2019-07-18 00:00:00

pages

3188

issue

1

issn

2041-1723

pii

10.1038/s41467-019-11141-9

journal_volume

10

pub_type

杂志文章

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