Poly(2-hydroxyethyl methacrylate) hydrogels doped with copper nanoparticles

Poly(2-hydroxyethyl methacrylate) hydrogels incorporating copper nanoparticles (Cu-PHEMA) were prepared by a two-step process. In the first step, porous PHEMA hydrogels containing aqueous Cu(II) were formed by photo-induced phase separation polymerization in aqueous formulations containing 2-hydroxy...

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Published in:Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology 2021-07, Vol.23 (7), Article 150
Main Authors: Praveen, Suzuki, Shuko, Carson, Christine F., Moggach, Stephen A., Saunders, Martin, Clode, Peta L., Myers, Matthew, Chirila, Traian V., Baker, Murray V.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Coliforms
Compression
Compressive strength
Copper
E coli
Hydrazine
Hydrazines
Hydrogels
Inorganic Chemistry
Lasers
Leaching
Materials Science
Morphology
Nanoparticles
Nanotechnology
Optical Devices
Optics
Phase separation
Photonics
Physical characteristics
Physical Chemistry
Polyhydroxyethyl methacrylate
Polymerization
Polymers
Research Paper
X-ray diffraction
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container_issue 7
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container_title Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology
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creator Praveen
Suzuki, Shuko
Carson, Christine F.
Moggach, Stephen A.
Saunders, Martin
Clode, Peta L.
Myers, Matthew
Chirila, Traian V.
Baker, Murray V.
description Poly(2-hydroxyethyl methacrylate) hydrogels incorporating copper nanoparticles (Cu-PHEMA) were prepared by a two-step process. In the first step, porous PHEMA hydrogels containing aqueous Cu(II) were formed by photo-induced phase separation polymerization in aqueous formulations containing 2-hydroxyethyl methacrylate (HEMA), a photoinitator, a cross-linker, and CuSO 4 . In the second step, the Cu(II) ions were reduced to Cu(0) (Cu NPs) by hydrazine. The Cu-PHEMA hydrogels were red-brown due to the presence of the Cu NPs, and X-ray diffraction studies confirmed the NPs were crystalline Cu and not CuO. The porous PHEMA and Cu-PHEMA hydrogels exhibited the polymer droplet morphology characteristic of sponges formed by induced phase separation polymerization of HEMA in water. The Cu NPs were stable inside the hydrogel, and leaching of Cu NPs into water was very slow. Leached Cu NPs moderately inhibited the growth of Escherichia coli or Staphylococcus aureus bacteria in the surrounding medium. Incorporation of Cu NPs inside PHEMA hydrogels did not change compression strength of hydrogels. Graphical abstract
doi_str_mv 10.1007/s11051-021-05281-7
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Graphical abstract</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s11051-021-05281-7</doi></addata></record>
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subjects Characterization and Evaluation of Materials
Chemistry and Materials Science
Coliforms
Compression
Compressive strength
Copper
E coli
Hydrazine
Hydrazines
Hydrogels
Inorganic Chemistry
Lasers
Leaching
Materials Science
Morphology
Nanoparticles
Nanotechnology
Optical Devices
Optics
Phase separation
Photonics
Physical characteristics
Physical Chemistry
Polyhydroxyethyl methacrylate
Polymerization
Polymers
Research Paper
X-ray diffraction
title Poly(2-hydroxyethyl methacrylate) hydrogels doped with copper nanoparticles
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