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Characterisation and cytotoxicity assessment of UV absorbers-intercalated zinc/aluminium-layered double hydroxides on dermal fibroblast cells


Citation

Megat Nabil Mohsin, Sumaiyah and Hussein, Mohd Zobir and Sarijo, Siti Halimah and Fakurazi, Sharida and Arulselvan, Palanisamy and Yap, Taufiq Yun Hin (2014) Characterisation and cytotoxicity assessment of UV absorbers-intercalated zinc/aluminium-layered double hydroxides on dermal fibroblast cells. Science of Advanced Materials, 6 (4). pp. 648-658. ISSN 1947-2935; ESSN: 1947-2943

Abstract

Zn/Al-layered double hydroxide (LDH) was used as a host to intercalate various organic ultraviolet (UV) radiation absorbers. The intercalation compounds were prepared via the co-precipitation method. Powder X-ray diffraction (PXRD) confirmed the successful intercalation of anions into the interlayer regions of the LDH nanocomposites. As a result of intercalation, the resulting nanocomposites loaded with UV-ray absorbers, cinnamic acid (CA), benzophenone 4 (B4) and Eusolex®232 (EUS)—exhibited basal spacings of 17.9 Å, 21.3 Å and 21.0 Å, respectively. Photochemical analysis revealed an increase in the UV-ray absorption capability of UV absorber/LDH nanocomposites compared to pure UV-ray absorbers. The retention ability of the organic moieties in the LDH host was tested in a skin pH simulation and was found to demonstrate low release over an extended period of time. Cytotoxicity findings indicated that none of the nanocomposites exhibit significant cytotoxicity towards human dermal fibroblast (HDF) cells up to the test concentration of 25 μg/mL.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Medicine and Health Science
Faculty of Science
Institute of Advanced Technology
Institute of Bioscience
DOI Number: https://doi.org/10.1166/sam.2014.1752
Publisher: American Scientific Publishers
Keywords: Intercalation; Layered double hydroxide; Nanocomposite; Optical properties; UV-ray absorber
Depositing User: Nabilah Mustapa
Date Deposited: 14 Sep 2015 10:20
Last Modified: 06 Oct 2015 06:46
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1166/sam.2014.1752
URI: http://psasir.upm.edu.my/id/eprint/36734
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