Publication detail

Multifunctional Visible-Light Powered Micromotors Based on Semiconducting Sulfur- and Nitrogen-Containing Donor-Acceptor Polymer

KOCHERGIN, Y. VILLA, K. NOVOTNÝ, F. PLUTNAR, J. BOJDYS, M. PUMERA, M.

Original Title

Multifunctional Visible-Light Powered Micromotors Based on Semiconducting Sulfur- and Nitrogen-Containing Donor-Acceptor Polymer

Type

journal article in Web of Science

Language

English

Original Abstract

Photosensitive micromotors that can be remotely controlled by visible light irradiation demonstrate great potential in biomedical and environmental applications. To date, a vast number of light-driven micromotors are mainly composed from costly heavy and precious metal-containing multicomponent systems, that limit the modularity of chemical and physical properties of these materials. Herein, a highly efficient photocatalytic micromotors based exclusively on a purely organic polymer framework-semiconducting sulfur- and nitrogen-containing donor-acceptor polymer, is presented. Thanks to precisely tuned molecular architecture, this material has the ability to absorb visible light due to a conveniently situated energy gap. In addition, the donor-acceptor dyads within the polymer backbone ensure efficient photoexcited charge separation. Hence, these polymer-based micromotors can move in aqueous solutions under visible light illumination via a self-diffusiophoresis mechanism. Moreover, these micromachines can degrade toxic organic pollutants and respond to an increase in acidity of aqueous environments by instantaneous colour change. The combination of autonomous motility and intrinsic fluorescence enables these organic micromotors to be used as colorimetric and optical sensors for monitoring of the environmental aqueous acidity. The current findings open new pathways toward the design of organic polymer-based micromotors with tuneable band gap architecture for fabrication of self-propelled microsensors for environmental control and remediation applications.

Keywords

micromotors; organic sensors; photocatalysis; semiconducting polymers; visible light

Authors

KOCHERGIN, Y.; VILLA, K.; NOVOTNÝ, F.; PLUTNAR, J.; BOJDYS, M.; PUMERA, M.

Released

1. 9. 2020

Publisher

WILEY-V C H VERLAG GMBH

Location

WEINHEIM

ISBN

1616-301X

Periodical

ADVANCED FUNCTIONAL MATERIALS

Year of study

30

Number

38

State

Federal Republic of Germany

Pages from

2002701-1

Pages to

2002701-9

Pages count

9

URL