Physical Properties of Ophthalmic Copolymers Containing Vinylaniline and ZnO Nanoparticles

A-Young Sung, Tae-Hun Kim

Department of Ophthalmic Optics, Sehan University, Jeonnam, South Korea;.
Department of Visual Optics, Baekseok University, Chonan, South Korea..

DOI: 10.4236/jbnb.2013.44039                

Abstract

The mixture of vinylaniline and 2-hydroxyethyl mrthacrylate mixed according to the mixing ratio, was allowed to stir in order to add functionality. ZnO nanoparticles, dispersed for approximately 1 hr in an ultrasonic bench top cleaner, were added to the mixture of monomers. Then the mixture at a mould was thermally polymerized to prepare high-performance hydrogel ophthalmic lens. The produced ophthalmic hydrogel lens was then put in 0.9% NaCl (normal saline solution) for 24 hrs for hydration, and various measurements were carried out. The surface analysis of ZnO nanoparticles dispersed in the macromolecular polymer was conducted using AFM (XE-100, Parks System). The produced hydrogel lens generally exhibited yellowish color, transparent and hydrophilic characteristics. Also, the contact lenses hydrated in standard saline solution generally exhibited the characteristics of flexibility and softness. The physical properties of the ophthalmic hydrogel lens material were measured. The refractive indexes of 1.359-1.423, water content of 37%-43%, and visible transmittance of 74%-82% were obtained.

Keywords

ZnO Nanoparticles; Vinylaniline; Spectral Transmittances; Contact Angles

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	T. H. Kim, K. H. Ye and A. Y. Sung, “UV-Blocking Effect of Ophthalmic Material Containing Benzophenone,” Journal of the Korean Chemical Society, Vol. 53, No. 3, 2009, pp. 391-398. http://dx.doi.org/10.5012/jkcs.2009.53.3.391
[2]	K. Diduch, R. Wubbenhorst and S. Kucharski, “Photocurrent Generation of Bi-Functional Carbazole Containing Polymers,” Synthetic Metals, Vol. 139, No. 2, 2003, pp. 515-520. http://dx.doi.org/10.1016/S0379-6779(03)00352-7
[3]	V. A. Soloukhin, W. Postumus, J. C. M. Brokken-Zijp and J. Loos, “Mechanical Properties of Silica-(Meth)Acrylate Hybrid Coatings on Polycarbonate Substrate,” Polymer, Vol. 43, No. 23, 2002, pp. 6169-6181. http://dx.doi.org/10.1016/S0032-3861(02)00542-6
[4]	T. H. Kim and A. Y. Sung, “Copolymerization and Contact Lens Application of HEMA-Substituted Polyphosphazene,” Journal of the Korean Chemical Society, Vol. 53, No. 3, 2009, pp. 340-344. http://dx.doi.org/10.5012/jkcs.2009.53.3.340
[5]	T. H. Kim, K. H. Ye, Y. S. Kwon and A. Y. Sung, “Study on the Silicone Contact Lens Using AA and BMA,” Journal of the Korean Ophthalmic Optics Society, Vol. 11, No. 3, 2006. pp. 259-265.
[6]	K. Vimala, M. M. Yallapu, K. Varaprasad, N. Narayana Reddy, S. Ravindra, N. S. Naidu and K. MohanaRaju, “Fabrication of Curcumin Encapsulated Chitosan-PVA Silver Nanocomposite Films for Improved Antimicrobial Activity” Journal of Biomaterials and Nanobiotechnology, Vol. 2, No. 1, 2011, pp. 55-64. http://dx.doi.org/10.4236/jbnb.2011.21008
[7]	K. H. Ye, S. H. Choi and A. Y. Sung, “Study on the Antibiosis and Physical Properties of Copolymer Containing Silver,” Journal of the Korean Chemical Society, Vol. 53, No. 3, 2009, pp. 562-546.
[8]	K. H. Ye and A. Y. Sung, “Synthesis of Polymer Materials Containing Platinum Nanoparticles and Their Application for Contact Lenses,” Journal of the Korean Chemical Society, Vol. 54, No. 1, 2010, pp. 99-104. http://dx.doi.org/10.5012/jkcs.2010.54.01.099
[9]	K. H. Ye and A. Y. Sung, “Study on the Synthesis and Physical Properties of Ophthalmic Polymer Containing Gold Nanoparticles,” Journal of the Korean Chemical Society, Vol. 54, No. 2, 2010, pp. 222-227. http://dx.doi.org/10.5012/jkcs.2010.54.02.222
[10]	R. W. Young, “Solar Radiation and Age-Related Macular Degeneration,” Survey of Ophthalmology, Vol. 32, No. 4, 1998, pp. 252-269. http://dx.doi.org/10.1016/0039-6257(88)90174-9
[11]	W. S. Duke-Elder and P. M. Duke-Elder, “A Histological Study on the Action of Short-Waved Light upon the Eye, with a Note on ‘Inclusion Bodies’,” British Journal of Ophthalmology, Vol. 13, No. 1, 1929, pp. 1-37. http://dx.doi.org/10.1136/bjo.13.1.1
[12]	S. Zigman, T. Yulo and J. Schultz, “Cataract Induction in Mice Exposed to near UV Light,” Ophthalmic Research, Vol. 6, No. 2-4, 1974, pp. 259-270. http://dx.doi.org/10.1159/000264710
[13]	M. Kennedy, K. H. Kim, B. Harten, et al., “Ultraviolet Irradiation Induces the Production of Multiple Cytokines by Human Corneal Cells,” Investigative Ophthalmology & Visual Science, Vol. 38, No. 12, 1997, pp. 2483-2491.
[14]	A. Podskochy, L. Gan and P. Fagerholm, “Apoptosis in UV-Exposed Rabbit Corneas,” Cornea, Vol. 19, No. 1, 2000, pp. 99-103. http://dx.doi.org/10.1097/00003226-200001000-00019
[15]	C. X. Cai, D. E. Birk and T. F. Linsenmayer, “Nuclear Ferritin Protects DNA from UV Damage in Corneal Epithelial Cells,” Molecular Biology of the Cell, Vol. 9, No. 5, 1998, pp. 1037-1051. http://dx.doi.org/10.1091/mbc.9.5.1037
[16]	T. H. Kim and A. Y. Sung, “Study on the High-Performance Lens Material Containing 4-Vinylpyridine,” Journal of the Korean Chemical Society, Vol. 54, No. 4, 2010, pp. 487-490.
[17]	T. H. Kim and A. Y. Sung, “Study on the Opthalmic Lens Materials with High Refractive Index Containing Vinylanisole,” Journal of the Korean Chemical Society, Vol. 54, No. 6, 2010, pp. 755-760. http://dx.doi.org/10.5012/jkcs.2010.54.6.755
[18]	T. H. Kim and A. Y. Sung, “Study on the Ophthalmic Optical Application of Poly(HEMA-co-FMA) Containing 2,3-Naphthalocyanine Bis(trihexylsilyloxide),” Journal of the Korean Chemical Society, Vol. 55, No. 4, 2011, pp. 723-728. http://dx.doi.org/10.5012/jkcs.2011.55.4.723