Characterization of Biocompatible Hydrogel Lenses Using Methacrylic Acid with Neodymium Oxide Nanoparticles

We prepared hydrogel contact lenses containing nanoparticles of neodymium oxide and methacrylic acid (MA) to investigate their effect on the physical and chemical properties of the lens. Neodymium oxide nanoparticles improved the tensile strength without affecting wettability. The tensile strength,...

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Main Authors: Min-Jae Lee, Seon-Young Park, A-Young Sung
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/13/10/1575
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author Min-Jae Lee
Seon-Young Park
A-Young Sung
author_facet Min-Jae Lee
Seon-Young Park
A-Young Sung
author_sort Min-Jae Lee
collection DOAJ
description We prepared hydrogel contact lenses containing nanoparticles of neodymium oxide and methacrylic acid (MA) to investigate their effect on the physical and chemical properties of the lens. Neodymium oxide nanoparticles improved the tensile strength without affecting wettability. The tensile strength, wettability, and light transmittance were all increased when MA was added in a specific ratio. To confirm the safety of the newly used nanoparticles, test on absorbance, eluate, and pH change were conducted and it was found that the safety level was satisfactory. In conclusion, it was confirmed that durable contact lenses can be manufactured with neodymium oxide nanoparticles, and most of the basic elements of the lens such as transparency, strength, and wettability could be improved using MA, which is a hydrophilic material. It is believed that the study will be helpful as part of basic research to use new materials.
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spelling doaj.art-f8c2160b043c4c5c8ad37383ed8c51392023-11-21T19:44:21ZengMDPI AGPolymers2073-43602021-05-011310157510.3390/polym13101575Characterization of Biocompatible Hydrogel Lenses Using Methacrylic Acid with Neodymium Oxide NanoparticlesMin-Jae Lee0Seon-Young Park1A-Young Sung2Department of Optometry, Jeju Tourism University, Jeju 63063, KoreaDepartment of Optometry & Vision Science, Daegu Catholic University, Gyeongsan 38430, KoreaDepartment of Optometry & Vision Science, Daegu Catholic University, Gyeongsan 38430, KoreaWe prepared hydrogel contact lenses containing nanoparticles of neodymium oxide and methacrylic acid (MA) to investigate their effect on the physical and chemical properties of the lens. Neodymium oxide nanoparticles improved the tensile strength without affecting wettability. The tensile strength, wettability, and light transmittance were all increased when MA was added in a specific ratio. To confirm the safety of the newly used nanoparticles, test on absorbance, eluate, and pH change were conducted and it was found that the safety level was satisfactory. In conclusion, it was confirmed that durable contact lenses can be manufactured with neodymium oxide nanoparticles, and most of the basic elements of the lens such as transparency, strength, and wettability could be improved using MA, which is a hydrophilic material. It is believed that the study will be helpful as part of basic research to use new materials.https://www.mdpi.com/2073-4360/13/10/1575neodymium oxide nanoparticlesmethacrylic acidhydrogel contact lenstensile strengthwettability
spellingShingle Min-Jae Lee
Seon-Young Park
A-Young Sung
Characterization of Biocompatible Hydrogel Lenses Using Methacrylic Acid with Neodymium Oxide Nanoparticles
Polymers
neodymium oxide nanoparticles
methacrylic acid
hydrogel contact lens
tensile strength
wettability
title Characterization of Biocompatible Hydrogel Lenses Using Methacrylic Acid with Neodymium Oxide Nanoparticles
title_full Characterization of Biocompatible Hydrogel Lenses Using Methacrylic Acid with Neodymium Oxide Nanoparticles
title_fullStr Characterization of Biocompatible Hydrogel Lenses Using Methacrylic Acid with Neodymium Oxide Nanoparticles
title_full_unstemmed Characterization of Biocompatible Hydrogel Lenses Using Methacrylic Acid with Neodymium Oxide Nanoparticles
title_short Characterization of Biocompatible Hydrogel Lenses Using Methacrylic Acid with Neodymium Oxide Nanoparticles
title_sort characterization of biocompatible hydrogel lenses using methacrylic acid with neodymium oxide nanoparticles
topic neodymium oxide nanoparticles
methacrylic acid
hydrogel contact lens
tensile strength
wettability
url https://www.mdpi.com/2073-4360/13/10/1575
work_keys_str_mv AT minjaelee characterizationofbiocompatiblehydrogellensesusingmethacrylicacidwithneodymiumoxidenanoparticles
AT seonyoungpark characterizationofbiocompatiblehydrogellensesusingmethacrylicacidwithneodymiumoxidenanoparticles
AT ayoungsung characterizationofbiocompatiblehydrogellensesusingmethacrylicacidwithneodymiumoxidenanoparticles