Locomotion of micromotors in paper chips

Paula De Dios Andres; Miguel A. Ramos-Docampo; Xiaomin Qian; Marian Stingaciu; Brigitte Städler

doi:10.1039/d1nr06221b

Locomotion of micromotors in paper chips

Paula De Dios Andres, Miguel A. Ramos-Docampo, Xiaomin Qian, Marian Stingaciu, Brigitte Städler^*

^*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

Abstract

Locomotion of nano/micromotors in non-aqueous environments remains a challenging task. We assembled magnetic micromotors with different surface coatings and explored their locomotion in paper chips. Poly(l-lysine) deposition resulted in positively charged micromotors. Immobilized cellulase was used to increase the micromotors' paper penetration depth while a polyethylene glycol (PEG) coating was employed to limit the interaction between the micromotors and the cellulose fibers. All micromotors were able to move in the top layers of the paper chips with velocities dependent on the magnetic forces used to induce their locomotion, their sizes and the types of employed paper chips. Maximum speeds of up to ∼25 μm s-1 were observed for PEGylated micromotors in the fibrous cellulose environment. This type of micromotors has the potential to be considered in the area of paper microfluidics to facilitate distribution, or collection of moieties for biosensing or cell culture. This journal is

Original language	English
Journal	Nanoscale
Volume	13
Issue	42
Pages (from-to)	17900-17911
Number of pages	12
ISSN	2040-3364
DOIs	https://doi.org/10.1039/d1nr06221b
Publication status	Published - Nov 2021

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title = "Locomotion of micromotors in paper chips",

abstract = "Locomotion of nano/micromotors in non-aqueous environments remains a challenging task. We assembled magnetic micromotors with different surface coatings and explored their locomotion in paper chips. Poly(l-lysine) deposition resulted in positively charged micromotors. Immobilized cellulase was used to increase the micromotors' paper penetration depth while a polyethylene glycol (PEG) coating was employed to limit the interaction between the micromotors and the cellulose fibers. All micromotors were able to move in the top layers of the paper chips with velocities dependent on the magnetic forces used to induce their locomotion, their sizes and the types of employed paper chips. Maximum speeds of up to ∼25 μm s-1 were observed for PEGylated micromotors in the fibrous cellulose environment. This type of micromotors has the potential to be considered in the area of paper microfluidics to facilitate distribution, or collection of moieties for biosensing or cell culture. This journal is ",

author = "{De Dios Andres}, Paula and Ramos-Docampo, {Miguel A.} and Xiaomin Qian and Marian Stingaciu and Brigitte St{\"a}dler",

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year = "2021",

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doi = "10.1039/d1nr06221b",

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T1 - Locomotion of micromotors in paper chips

AU - De Dios Andres, Paula

AU - Ramos-Docampo, Miguel A.

AU - Qian, Xiaomin

AU - Stingaciu, Marian

AU - Städler, Brigitte

N1 - Publisher Copyright: © The Royal Society of Chemistry.

PY - 2021/11

Y1 - 2021/11

N2 - Locomotion of nano/micromotors in non-aqueous environments remains a challenging task. We assembled magnetic micromotors with different surface coatings and explored their locomotion in paper chips. Poly(l-lysine) deposition resulted in positively charged micromotors. Immobilized cellulase was used to increase the micromotors' paper penetration depth while a polyethylene glycol (PEG) coating was employed to limit the interaction between the micromotors and the cellulose fibers. All micromotors were able to move in the top layers of the paper chips with velocities dependent on the magnetic forces used to induce their locomotion, their sizes and the types of employed paper chips. Maximum speeds of up to ∼25 μm s-1 were observed for PEGylated micromotors in the fibrous cellulose environment. This type of micromotors has the potential to be considered in the area of paper microfluidics to facilitate distribution, or collection of moieties for biosensing or cell culture. This journal is

AB - Locomotion of nano/micromotors in non-aqueous environments remains a challenging task. We assembled magnetic micromotors with different surface coatings and explored their locomotion in paper chips. Poly(l-lysine) deposition resulted in positively charged micromotors. Immobilized cellulase was used to increase the micromotors' paper penetration depth while a polyethylene glycol (PEG) coating was employed to limit the interaction between the micromotors and the cellulose fibers. All micromotors were able to move in the top layers of the paper chips with velocities dependent on the magnetic forces used to induce their locomotion, their sizes and the types of employed paper chips. Maximum speeds of up to ∼25 μm s-1 were observed for PEGylated micromotors in the fibrous cellulose environment. This type of micromotors has the potential to be considered in the area of paper microfluidics to facilitate distribution, or collection of moieties for biosensing or cell culture. This journal is

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SN - 2040-3364

VL - 13

SP - 17900

EP - 17911

JO - Nanoscale

JF - Nanoscale

IS - 42

ER -

Locomotion of micromotors in paper chips

Abstract

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