Selectively coated contact lenses by nanoelectrospray (nES) to fabricate drug-eluting contact lenses for treating ocular diseases

Tam, Chak Hin ORCID: https://orcid.org/0000-0001-7380-856X, Alexander, Matthew S., Sanderson, Julie and Qi, Sheng ORCID: https://orcid.org/0000-0003-1872-9572 (2024) Selectively coated contact lenses by nanoelectrospray (nES) to fabricate drug-eluting contact lenses for treating ocular diseases. Medical Engineering and Physics, 124. ISSN 1350-4533

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Abstract

Drug-eluting contact lenses (DECLs) incorporated with poly(lactic-co-glycolic acid) (PLGA) and various model drugs (ketotifen fumarate, bimatoprost and latanoprost) were fabricated by using nanoelectrospray (nES) approach. The resulting DECLs demonstrated outstanding optical transmittance within the optical zone, indicating that the employed coating procedure did not compromise visual acuity under the prescribed spraying parameters. In vitro drug release assessments of the model drugs (ketotifen fumarate (KF), bimatoprost (BIM), and latanoprost (LN)) revealed a strong correlation between the model drug's hydrophobicity and the duration of drug release. Changing the drug loading of the more hydrophilic model drugs, BIM and KF, showed no impact on the drug release kinetics of BIM and KF loaded DECLs, whereas for the hydrophobic model drug, LN, the highest LN loading led to the most extended drug release. The conventional steam sterilisation method was found to damage the PLGA coating on the DECLs fabricated by nES. An alternative sterilisation strategy, such as radiation sterilisation may need to be investigated in the future study to minimise potential harm to the coating.

Item Type: Article
Additional Information: Funding information: Medical Research Council (MRC) Impact Acceleration Account (IAA), grant number: MR/X502972/1
Faculty \ School: Faculty of Science > School of Pharmacy
Faculty of Science
UEA Research Groups: Faculty of Science > Research Groups > Molecular and Tissue Pharmacology
Faculty of Science > Research Groups > Pharmaceutical Materials and Soft Matter
Depositing User: LivePure Connector
Date Deposited: 19 Jan 2024 01:35
Last Modified: 27 Jan 2024 03:14
URI: https://ueaeprints.uea.ac.uk/id/eprint/94201
DOI: 10.1016/j.medengphy.2024.104110

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