Projects per year
Abstract
Poly(2-hydroxyethyl methacrylate) sponges doped with silver nanoparticles (Ag NP-PHEMA) were prepared by irradiation of aqueous solutions containing 2-hydroxyethyl methacrylate (HEMA) and silver nitrate in the presence of a cross-linking agent and a photoinitiator. The Ag NP-PHEMA sponges had polymer droplet morphology with interconnected pores, characteristic of PHEMA sponges prepared by polymerization-induced phase separation. The Ag NP-PHEMA sponges were yellow-brown, whereas PHEMA sponges were white. For formation of Ag NP-PHEMA, the size of the polymer droplets was larger and the rate of polymerization was increased compared to PHEMA sponges formed under similar conditions but in the absence of silver nitrate. Mechanical strength, as indicated by compression testing, was similar for Ag NP-PHEMA and PHEMA sponges. Nanoparticles slowly leached out of Ag NP-PHEMA sponges, exerting antibacterial activity against Escherichia coli (Gram-negative) and Staphylococcus aureus (Gram-positive) bacteria. Notably, Ag NPs that leached were nontoxic to human corneal epithelial (HCE-T) cells.
| Original language | English |
|---|---|
| Pages (from-to) | 1630-1639 |
| Number of pages | 10 |
| Journal | ACS Applied Nano Materials |
| Volume | 3 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 28 Feb 2020 |
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- 4 Finished
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A World Class High Resolution Scanning Electron Microscopy Facility for West Australian Researchers
Sampson, D. (Chief Investigator), Clode, P. (Chief Investigator), Murphy, D. (Chief Investigator), Swaminatha Iyer, K. (Chief Investigator), Zhang, D. (Chief Investigator), Thompson, R. (Chief Investigator), Rad, M. (Chief Investigator), Yin, C.-Y. (Chief Investigator) & Dixon, K. (Chief Investigator)
ARC Australian Research Council
1/01/13 → 31/12/13
Project: Research
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Returning Western Australian Characterisation Capabilities to the Cutting Edge - High Resolution Analytical Transmission Electron Microscopy
Sampson, D. (Investigator 01), Faraone, L. (Investigator 02), Liu, Y. (Investigator 03), Rad, M. (Investigator 04), Saunders, M. (Investigator 05), Buckley, C. (Investigator 06), Chaudhary, D. (Investigator 07), Rasmussen, B. (Investigator 08), van Riessen, A. (Investigator 09), Xie, Z. (Investigator 10), Minakshi, M. (Investigator 11), Yin, C.-Y. (Investigator 12), Anand, R. (Investigator 13) & Hough, R. (Investigator 14)
ARC Australian Research Council
1/01/13 → 31/12/13
Project: Research
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A Cryopreparation Facility for Western Australia
Atkins, C. (Chief Investigator), Baer, B. (Chief Investigator), Babourina, O. (Chief Investigator), Clode, P. (Chief Investigator), Dixon, K. (Chief Investigator), Dunlop, S. (Chief Investigator), Eubel, H. (Chief Investigator), Filgueira, L. (Chief Investigator), Kilburn, M. (Chief Investigator), Klinken, P. (Chief Investigator), Kuo, J. (Chief Investigator), Laing, N. (Chief Investigator), Leedman, P. (Chief Investigator), Ludwig, M. (Chief Investigator), Millar, H. (Chief Investigator), Pixley, F. (Chief Investigator), Saunders, M. (Chief Investigator), Siddique, K. (Chief Investigator), Sivasithamparam, K. (Chief Investigator), St Pierre, T. (Chief Investigator), Whelan, J. (Chief Investigator), Zheng, M. (Chief Investigator) & Ziman, M. (Chief Investigator)
ARC Linkage Infrastructure Equipment Facilities
1/01/08 → 31/12/08
Project: Research