|
Type |
Poster Presentation |
Area |
Polymer Chemistry |
Room No. |
Exhibition Hall 2 |
Time |
4월 19일 (금요일) 11:00~12:30 |
Code |
POLY.P-37 |
Subject |
Evaluation of Physical Properties of High Performance Opthalmic Lens
Containing Hyaluronic Acid and Graphene Oxide Nanocolloids
|
Authors |
Jae-wuk Seok, Subin Park, A-Young Sung* Department of Optometry, Daegu Catholic University, Korea |
Abstract |
This experiment was performed to compare the physical properties of Hyaluronic acid and Graphene oxide nanocolloids for the hydrogel lens material. AIBN (Azobisisobutyronitrile) was used as an initiator with HEMA (2-Hydroxy ethyl methacrylate) and EGDMA (Ethylene glycol dimethacrylate) as a basic combination. Hyaluronic acid (HA) was fixed at 5% as an additive, and Graphene oxide nanocolloids were added gradually increasing from 0.1% to 0.5%. The hydrogel lenses were prepared by thermal polymerization at 100 ℃ for 1 hour. The refractive index tended to be lowered from 1.4358 to 1.4149. In case of Graphene oxide nanocolloids, there was no significant difference from that of Ref (HEMA combination). However, as the amount of Graphene added increased, the fluctuation of refractive index decreased rapidly. The water content tended to increase with the addition of 0.1% Graphene, which was 38.91% ~ 40.55%, but it increased rapidly from 40.55% to 44.23% as the amount of Graphene oxid nanocolloids was increased. As a result of physical properties of produced lens, refractive index of contact lens with hyaluronic acid and Graphene oxide nanocolloids showed a tendency to decrease and water content tended to increase. Especially, as the amount of Graphene oxide nanocolloids increased, the fluctuation of physical properties was increased. Therefore, this material is considered to be suitable as a material for hydrogel lenses. |
E-mail |
seok5597@naver.com |
|