Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/151332
Title: Sunlight activated film forming adhesive polymers
Authors: Tan, Nigel Chew Shun
Djordjevic, Ivan
Malley, Jamie Ann
Kwang, Ailyn L. Q.
Syed, Ikhwan
Šolić, Ivan
Singh, Juhi
Wicaksono, Gautama
Lim, Sierin
Steele, Terry W. J.
Keywords: Engineering::Bioengineering
Science::Chemistry::Organic chemistry::Polymers
Issue Date: 2021
Source: Tan, N. C. S., Djordjevic, I., Malley, J. A., Kwang, A. L. Q., Syed, I., Šolić, I., Singh, J., Wicaksono, G., Lim, S. & Steele, T. W. J. (2021). Sunlight activated film forming adhesive polymers. Materials Science and Engineering: C, 127, 112240-. https://dx.doi.org/10.1016/j.msec.2021.112240
Project: IRG17283008
H19/01/a0/0II9
RG17/18 (S)
MOE2018-T2-2-114
Journal: Materials Science and Engineering: C
Abstract: Stimuli-sensitive biomaterials that are activated by light are in need of formulations that are stable under indoor lighting yet can be activated under direct sunlight. Carbene-based bioadhesives are a new generation of film-forming polymers that are stable under indoor lighting yet are rapidly activated with low-energy UVA light, but have never been evaluated under sunlight exposure. Previous investigations have evolved two flexible carbene-based platforms, where aryl-diazirine is grafted on to polyamidoamine dendrimers (PAMAM-NH2; generation-5) or hydrophobic liquid polycaprolactone tetrol to yield G5-Dzx and CaproGlu, respectively. For the first time the activation of G5-Dzx and CaproGlu is investigated by natural sunlight with intensities up to 10 mW.cm-2. Structure-property relationships of bioadhesion are investigated by: (1) joules dose of sunlight (2) bioadhesive polymer structure; and (3) optical concentrators of magnifying glass and Fresnel lens. Using only natural sunlight, adhesion strength could be tuned from 20-150 kPa with crosslinking achieved in under 1 min. The results show that carbene-based polymers are a class of stimuli-sensitive biomaterials that are stable to indoor lighting, yet can be rapidly activated under direct sunlight, which may be useful for topical film forming polymers or as active ingredients in sunscreen formulation.
URI: https://hdl.handle.net/10356/151332
ISSN: 0928-4931
DOI: 10.1016/j.msec.2021.112240
Rights: © 2021 Elsevier B.V. All rights reserved. This paper was published in Materials Science and Engineering: C and is made available with permission of Elsevier B.V.
Fulltext Permission: embargo_20230907
Fulltext Availability: With Fulltext
Appears in Collections:IGS Journal Articles
MSE Journal Articles
SCBE Journal Articles

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