Mussel inspired locomotive: The moisture induced actuation in a poly(vinyl alcohol) film containing melanin-like dopamine nano spheres

Francis O. Obiweluozor; Amin Ghavaminejad; Chan Hee Park; Cheol Sang Kim

doi:10.1039/c6ra11987e

Mussel inspired locomotive: The moisture induced actuation in a poly(vinyl alcohol) film containing melanin-like dopamine nano spheres

Francis O. Obiweluozor, Amin Ghavaminejad^*, Chan Hee Park, Cheol Sang Kim

^*Corresponding author for this work

Biomedical Engineering

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Smart responsive materials are gaining scientific interest, especially those driven by green sources. Moisture induced locomotion is a process of energy conversion that has applications in areas capable of converting chemical potential energy in water gradients to mechanical work. Here we describe for the first time the development of a moisture-responsive polymeric film of polydopamine nanospheres (PDNs) embedded in a polyvinyl alcohol (PVA) matrix. PVA film is a hydroxyl rich polymer known for its high water absorption property. However, after adding PDNs to this matrix, the desorption property increases due to the intramolecular hydrogen bonding between the functional groups of PDNs and the hydroxyl groups of PVA chains. Therefore, anisotropic adsorption and desorption of water vapor, which is responsible for the fast locomotion of PVA@PDNs, were observed.

Original language	English (US)
Pages (from-to)	65089-65094
Number of pages	6
Journal	RSC Advances
Volume	6
Issue number	69
DOIs	https://doi.org/10.1039/c6ra11987e
State	Published - 2016

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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title = "Mussel inspired locomotive: The moisture induced actuation in a poly(vinyl alcohol) film containing melanin-like dopamine nano spheres",

abstract = "Smart responsive materials are gaining scientific interest, especially those driven by green sources. Moisture induced locomotion is a process of energy conversion that has applications in areas capable of converting chemical potential energy in water gradients to mechanical work. Here we describe for the first time the development of a moisture-responsive polymeric film of polydopamine nanospheres (PDNs) embedded in a polyvinyl alcohol (PVA) matrix. PVA film is a hydroxyl rich polymer known for its high water absorption property. However, after adding PDNs to this matrix, the desorption property increases due to the intramolecular hydrogen bonding between the functional groups of PDNs and the hydroxyl groups of PVA chains. Therefore, anisotropic adsorption and desorption of water vapor, which is responsible for the fast locomotion of PVA@PDNs, were observed.",

author = "Obiweluozor, {Francis O.} and Amin Ghavaminejad and Park, {Chan Hee} and Kim, {Cheol Sang}",

note = "Funding Information: This research was supported with grants from the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education, Science and Technology (Project No. 2015-020449 Project No. 2016R1A2A2A07005160 and Project No. NRF-2015R1C1A1A02036404. The authors would also like to thank the staff of the CBNU central lab. Publisher Copyright: {\textcopyright} 2016 The Royal Society of Chemistry.",

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doi = "10.1039/c6ra11987e",

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AU - Ghavaminejad, Amin

AU - Park, Chan Hee

AU - Kim, Cheol Sang

N1 - Funding Information: This research was supported with grants from the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education, Science and Technology (Project No. 2015-020449 Project No. 2016R1A2A2A07005160 and Project No. NRF-2015R1C1A1A02036404. The authors would also like to thank the staff of the CBNU central lab. Publisher Copyright: © 2016 The Royal Society of Chemistry.

PY - 2016

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N2 - Smart responsive materials are gaining scientific interest, especially those driven by green sources. Moisture induced locomotion is a process of energy conversion that has applications in areas capable of converting chemical potential energy in water gradients to mechanical work. Here we describe for the first time the development of a moisture-responsive polymeric film of polydopamine nanospheres (PDNs) embedded in a polyvinyl alcohol (PVA) matrix. PVA film is a hydroxyl rich polymer known for its high water absorption property. However, after adding PDNs to this matrix, the desorption property increases due to the intramolecular hydrogen bonding between the functional groups of PDNs and the hydroxyl groups of PVA chains. Therefore, anisotropic adsorption and desorption of water vapor, which is responsible for the fast locomotion of PVA@PDNs, were observed.

AB - Smart responsive materials are gaining scientific interest, especially those driven by green sources. Moisture induced locomotion is a process of energy conversion that has applications in areas capable of converting chemical potential energy in water gradients to mechanical work. Here we describe for the first time the development of a moisture-responsive polymeric film of polydopamine nanospheres (PDNs) embedded in a polyvinyl alcohol (PVA) matrix. PVA film is a hydroxyl rich polymer known for its high water absorption property. However, after adding PDNs to this matrix, the desorption property increases due to the intramolecular hydrogen bonding between the functional groups of PDNs and the hydroxyl groups of PVA chains. Therefore, anisotropic adsorption and desorption of water vapor, which is responsible for the fast locomotion of PVA@PDNs, were observed.

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Mussel inspired locomotive: The moisture induced actuation in a poly(vinyl alcohol) film containing melanin-like dopamine nano spheres

Abstract

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