High-speed graphene@Ag-MnO2 micromotors at low peroxide levels

Ye, Heng; Kang, Jian; Ma, Guoqiang; Sun, Hongqi; Wang, Shaobin

doi:10.1016/j.jcis.2018.05.088

Cited by 43 publications

(34 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The mesoporous SiO 2 layer allowed for pollutant adsorption and collection, an ability that was improved due to the micromotors' self‐propulsion via the Pt – H 2 O 2 interaction. Wang et al developed graphene oxide‐wrapped Ag modified‐manganese dioxide (MnO 2 ) micromotors that were able to swim in H 2 O 2 concentrations as low as 0.2% due to the synergistic effect of two catalysts, Ag and MnO 2 . Maria‐Hormigos and co‐workers designed conical single‐wall carbon nanotubes with an inner layer of MnO 2 and an outer layer of Fe 2 O 3 nanoparticles, which self‐propelled in H 2 O 2 by oxygen bubble propulsion .…”

Section: Fuel‐driven Nano/micromotorsmentioning

confidence: 99%

“…Wang et al developed graphene oxidewrapped Ag modified-manganese dioxide (MnO 2 ) micromotors that were able to swim in H 2 O 2 concentrations as low as 0.2% due to the synergistic effect of two catalysts, Ag and MnO 2 . [74] Maria-Hormigos and co-workers designed conical single-wall carbon nanotubes with an inner layer of MnO 2 and an outer layer of Fe 2 O 3 nanoparticles, which self-propelled in H 2 O 2 by oxygen bubble propulsion. [75] Hydroxyl radicals generated in this process were used for pollutant degradation.…”

Section: Hydrogen Peroxide (H 2 O 2 )-Driven Nano/micromotorsmentioning

confidence: 99%

See 1 more Smart Citation

Recent Advances in Nano‐ and Micromotors

Fernández-Medina

Ramos-Docampo

Hovorka

et al. 2020

Adv Funct Materials

160

143

View full text Add to dashboard Cite

Nano‐ and micromotors are fascinating objects that can navigate in complex fluidic environments. Their active motion can be triggered by external power sources or they can exhibit self‐propulsion using fuel extracted from their surroundings. The research field is rapidly evolving and has produced nano/micromotors of different geometrical designs, exploiting a variety of mechanisms of locomotion, being capable of achieving remarkable speeds in diverse environments ranging from simple aqueous solutions to complex media including cell cultures or animal tissue. This review aims to provide an overview of the recent developments with focus on predominantly experimental demonstrations of the various motor designs developed in the past 24 months. First, externally driven motors are discussed followed by considering fuel‐driven approaches. Finally, a short future perspective is provided.

show abstract

Section: Fuel‐driven Nano/micromotorsmentioning

confidence: 99%

Section: Hydrogen Peroxide (H 2 O 2 )-Driven Nano/micromotorsmentioning

confidence: 99%

Recent Advances in Nano‐ and Micromotors

Fernández-Medina

Ramos-Docampo

Hovorka

et al. 2020

Adv Funct Materials

160

143

View full text Add to dashboard Cite

show abstract

“…[72] However,t his technique requires ac omplex fabricationp rocess and consequent costs of mass production. [74] Instead of metals, conductive polymers were also incorporated into the fabrication of functional tubular motors through membrane template-assisted electrodeposition. [37] Silver conductive ink wasemployeda tt he bottom of an aluminum oxide template, followedb yt he attachment of aluminum foil to act as the working electrode.…”

Section: Tubular Janus Motorsmentioning

confidence: 99%

“…[39] The carbon tubes and Ni salt were first introduced into the capillary without buffer solution to reduce the aggregation of carbon tubes.W ith the assistance of capillaryf orces, Figure 7. [74].Copyright 2013 Elsevier Ltd. C) Polycarbonate membrane-assistedfabrication and SEM images of conical polyaniline (PANI)/Ptm icrotubes. A) Elemental mapping of an Au/Ptn anojet by means of SEM/energy-dispersive X-ray spectroscopy (EDX).…”

Section: Tubular Janus Motorsmentioning

confidence: 99%

“…To increase the motor efficiency,g raphene/AgÀMnO 2 micromotors were developed, whiche xhibited more efficient motion in al ower concentration of H 2 O 2 compared with that of Pt-based micromotors ( Figure 7B). [74] Instead of metals, conductive polymers were also incorporated into the fabrication of functional tubular motors through membrane template-assisted electrodeposition. Conducting polymer-metal tubular micromotors were synthesized through as implified and inexpensive method( Figure 7C).…”

Section: Tubular Janus Motorsmentioning

confidence: 99%

See 1 more Smart Citation

Fabrication of Self‐Propelled Micro‐ and Nanomotors Based on Janus Structures

Luan

Wang

et al. 2019

Chemistry A European J

View full text Add to dashboard Cite

Delicate molecular and biological motors are tiny machines capable of achieving numerous vital tasks in biological processes. To gain ad eeper understanding of their mechanism of motion, researchers from multiple backgrounds have designed andf abricated artificial micro-and nanomotors. These nano-/microscale motors can self-propel in solution by exploiting different sources of energy;t hus showing tremendous potentiali nw idespread applications. As one of the most common motor systems, Janus motors possessunique asymmetric structures and integrate different functional materials onto two sides. This review mainly focuses on the fabrication of different types of micro-and nanomotors based on Janus structures. Furthermore, some challenges still exist in the implementation of Janus motors in the biomedical field. With such common goals in mind, it is expected that the elaborate and multifunctional design of Janus motors will overcome their challenges in the near future.

show abstract

Active Light‐Powered Antibiofilm ZnO Micromotors with Chemically Programmable Properties

Ussia

Urso

Dolezelikova

et al. 2021

Adv Funct Materials

View full text Add to dashboard Cite

Bacterial biofilms are multicellular communities firmly attached to solid extracellular substrates. They are considered the primary cause of huge economic losses, from medicine due to medical implants’ failure to large infrastructure due to enhanced pipe corrosion. Therefore, their eradication is highly desirable. Here, the preparation of ZnO self‐propelled micromotors is reported, programming their morphology and motion properties through Ag doping. The ZnO:Ag micromotors actively move upon light irradiation via a self‐electrophoretic mechanism, showing excellent light‐controlled on/off switching motion. At the same time, the rapid and effective removal of both gram‐positive and gram‐negative bacteria biofilms from the solid surface is demonstrated, exploiting the well‐known antibacterial activity of both Ag and ZnO as well as the enhanced diffusion of the micromotors. The new concept for the low‐cost and scalable preparation of chemically programmable Ag‐doped ZnO micromotors here illustrated opens a new route toward the formulation of a new class of light‐driven semiconducting self‐propelled micromotors for environmental applications.

show abstract

High-speed graphene@Ag-MnO2 micromotors at low peroxide levels

Cited by 43 publications

References 55 publications

Recent Advances in Nano‐ and Micromotors

Recent Advances in Nano‐ and Micromotors

Fabrication of Self‐Propelled Micro‐ and Nanomotors Based on Janus Structures

Active Light‐Powered Antibiofilm ZnO Micromotors with Chemically Programmable Properties

Contact Info

Product

Resources

About