NDLI: UV curable lens production using molecular weight controlled PEEK based acrylic oligomer (Ac-PEEK)

Content Provider	Springer Nature Link
Author	İnan, Tulay Y. Yıldız, Emel Karaca, Birsen Dogan, Hacer Vatansever, Alican Nalbant, Muhammed Eken, Koray
Copyright Year	2014
Abstract	We produced UV curable lenses with properties blocking short wave UV light. In the UV-curable formulations, we used an oligomer (Ac-PEEK) with another urethan oligomer (Mw = 2000). Radically active, molecular weight controlled Ac-PEEK was obtained by reacting 2-hydroxyl ethyl methacrylate with molecular- weight- controlled and isocyanate terminated PEEK (Mn = 4500). We characterized all synthesized monomer, oligomer and optical materials with UV/Vis spectrophotometer with interferogram, elemental analyser, mass spectrophotometer, proton nuclear magnetic resonance, Fourier transform infrared spectroscopy, thermal gravimetric analyzer, differential scanning calorimeter, scanning electron microscopy and gas chromatography. Results suggested that newly synthesized oligomer with the structure of PEEK absorbs short wave UV-light. Ageing tests [ISO 11979-5, Ophthalmic implants—intraocular lenses (IOL)—Part 5: Biocompatibility] performed on the IOL materials were successful. High contact angle of the obtained lenses suggests that all lenses were hydrophobic and SEM results revealed that lenses are morphologically homogeneous. Based on all positive properties just mentioned, we safely conclude that the lenses produced in this study are very promising for IOL production.
Starting Page	2027
Ending Page	2039
Page Count	13
File Format	PDF
ISSN	09574530
Journal	Journal of Materials Science: Materials in Medicine
Volume Number	25
Issue Number	8
e-ISSN	15734838
Language	English
Publisher	Springer US
Publisher Date	2014-05-06
Publisher Place	Boston
Access Restriction	Subscribed
Subject Keyword	Biomaterials Biomedical Engineering Regenerative Medicine/Tissue Engineering Polymer Sciences Ceramics, Glass, Composites, Natural Methods Surfaces and Interfaces, Thin Films
Content Type	Text
Resource Type	Article
Subject	Biomaterials Biophysics Bioengineering Biomedical Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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