Results 61 to 70 of about 303,646 (267)

Optical and mechanical characterization of UV-irradiated hydrophobic acrylic intraocular lenses

Open Physics
Hydrophobic acrylic intraocular lenses (IOLs) undergo significant optical, chemical, surface, and mechanical changes upon prolonged ultraviolet (UV) exposure.
Torrisi Alfio, Cappellani Francesco, Gagliano Caterina, Spinello Alfonso, Visalli Federico, Torrisi Lorenzo   +5 more
doaj   +1 more source

Scleral buckle infection with Alcaligenes xylosoxidans

Indian Journal of Ophthalmology, 2014
We describe a rare case of extraocular inflammation secondary to scleral buckle infection with Alcaligenes xylosoxidans. A 60-year-old female with a history of retinal detachment repair with open-book technique of scleral buckling presented with purulent
Chih-Kang Hsu, Yun-Hsiang Chang, Jiann-Torng Chen   +2 more
doaj   +1 more source

Characterized Ecoflex Polydimethylsiloxane (PDMS) Hybrids for Advanced Flexible Devices

Advanced Materials Technologies, EarlyView.
Ecoflex–PDMS hybrids are systematically characterized to identify an optimal composition that balances stretchability, optical transparency, and plasma bonding, enabling multifunctional applications in stretchable microfluidics, flexible sensing, and soft robotics.
Xiaoyue Kang, Zhefan Chen, Zhiyang Hong, Wanting Chen, Qingtian Zhang, Amith Mudugamuwa, Tuan‐Khoa Nguyen, Lingxi Ouyang, Nam‐Trung Nguyen, Jun Zhang, Dan Yuan   +10 more
wiley   +1 more source

Calcification of Hydrophilic Acrylic Intraocular Lenses with a Hydrophobic Surface Following Uneventful Descemet’s Stripping Automated Endothelial Keratoplasty

Purpose: This is a retrospective, observational case series of 43 patients who underwent Descemet’s striping automated endothelial keratoplasty with implants of hydrophilic acrylic intraocular lenses with hydrophobic surface (Lentis LS-302-Y or Lentis L ...
Monika Udziela, Krzysztof Skrzypiec, Jacek P. Szaflik, Urszula Kołodziejska, Anna Gumieniczek, Ewaryst Mendyk, Michał Rawski   +6 more
core   +1 more source

Force–Displacement Characterization of PNIPAM Microactuators

Advanced Robotics Research, EarlyView.
A method to experimentally establish a force–displacement diagram of poly(N‐isopropyl acrylamide) (PNIPAM) microactuators, printed by 2PP, is presented herein. PNIPAM is a hydrogel whose volume and stiffness change with temperature due to the absorption or release of water.
Manon Cassignol, Esra Yalcinkaya, Adam Chafaï, Jérémy Odent, Pierre Lambert   +4 more
wiley   +1 more source

Magnetically Actuated Microrobot for Drug Delivery: Current Progress and Challenges

Advanced Robotics Research, EarlyView.
Magnetically actuated microrobots are reshaping targeted drug delivery through wireless propulsion, programmable materials, and localized therapeutic release. This review examines how fabrication, body material selection, structural architecture, loading mechanisms, and imaging‐guided control converge to enable microrobotic therapies while identifying ...
Yang Yang, David J. Cappelleri
wiley   +1 more source

Harnessing Phase Separation for the Development of High‐Performance Hydrogels

Advanced Science, EarlyView.
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao, Yiming Ma, Baihao Shao, Molly M. Stevens   +3 more
wiley   +1 more source

Comparison of polymethylmethacrylate versus hydrophobic acrylic lenses for primary intraocular lens implantation in pediatric cataract surgery

, 2018
AIM: To compare the visual results and postoperative complications of polymethylmethacrylate (PMMA) and hydrophobic acrylic intraocular lenses (IOLs) in children who underwent cataract extraction with primary IOL implantation.
Gündüz, Gamze Uçan, Budak, Berna Akova, Özmen, Ahmet Tuncer   +2 more
core   +1 more source

Rapid Photogelation of Low‐Concentration Polymer Solutions via Photodimerization of o‐Ethylnitrobenzene

Advanced Science, EarlyView.
Upon UV irradiation, flexible and tough hydrogels are formed rapidly (>0.5 s) from dilute (>0.5 wt%) solutions of o‐ethylnitrobenzene–modified PVA. At ∼1.5 wt%, the hydrogels withstand up to 10 MPa compression, remain handleable even after 200‐fold swelling.
Masaaki Okihara, Ayaka Tomoda, Kana Morishita, Toshiyuki Takagi, Kimio Sumaru   +4 more
wiley   +1 more source

Scanning electron microscopic characteristics of manually loaded and preloaded foldable acrylic intraocular lenses

, 2018
Purpose: To compare surface alterations between preloaded and manually loaded intraocular lens. Methods: Scanning electron microscope was utilized to evaluate surface alteration and deposits in four different types of intraocular lenses: preloaded ...
Ahmed Hasan Eldoghaimy, Zeiad Hasan Eldaly, Walid Saad Eldein Ibrahim, Mahmoud Fathy Rateb   +3 more
core   +1 more source