Results 41 to 50 of about 5,274 (261)

Czechoslovakia/Czech Republic as a leader in polymer technologies in Central Europe: from contact lenses to 3D printing

Acta Polytechnica
The Czech Republic prides itself on a long-standing tradition in the scientific field of polymer studies and technologies. Seen in this light, the following article seeks to single out this particular tradition and to highlight some of the facts ...
Marcela Efmertová
doaj   +1 more source

Efeito do filtro de ultravioleta em lentes de contato hidrofílicas de alta hidratação Ultraviolet filter effect on hydrophilic high hydrated contact lenses

Revista Brasileira de Oftalmologia, 2008
A exposição à radiação ultravioleta está relacionada ao aparecimento de patologias oculares como ceratites, cataratas, degenerações maculares ou pterígio.
Arlindo José Freire Portes, César Antonio Elias, Celso Laje, Lívia Faria Jordão, Natasha Moreira Lyrio   +4 more
doaj   +1 more source

Ultra‐High‐Throughput Discovery of Multifunctional Polyphenolic Coatings on Droplet Microarrays

Advanced Materials, EarlyView.
An ultra‐high‐throughput (UHT) combinatorial strategy enables the miniaturized synthesis and screening of ≈30 000 polyamine‐polyphenolic (PaPp) coatings using droplet microarrays (DMA). This approach reveals hundreds of previously unknown fluorescent, redox‐active, and antibacterial materials, including multifunctional, cell‐compatible surfaces ...
Vania Tanda Widyaya, Joaquín E. Urrutia Gómez, Paul Reuß, Alexander Welle, Rolf A. Gattung, Jana Mayer, Peter Krolla, Markus Reischl, Pascal Friederich, Anna A. Popova, Thomas Schwartz, Pavel A. Levkin   +11 more
wiley   +1 more source

Mimicking Human Perspiration: A Layered Microfluidic Skin Phantom With Tunable Hydrodynamics

Advanced Materials Interfaces, EarlyView.
A multilayer microfluidic skin phantom based on thermoplastic elastomers is developed to mimic human perspiration. Spatially controlled wettability enables capillary‐driven transport and controlled droplet formation at the surface, resembling sweat gland behavior.
Chunyu Yang, Ángeles Ivón Rodríguez‐Villarreal, Joan Antoni López‐Martínez, Josep Farré‐Lladós, Genís Rabost‐García, Jasmina Casals‐Terré   +5 more
wiley   +1 more source

Scanning Electron Microscopy of Hydrophilic Contact Lenses

Archives of Ophthalmology, 1972
Hydrated hydrophilic lenses of three different manufacturers (Griffen, Kontur, and Bausch and Lomb) were prepared for scanning electron microscopy utilizing air drying, freeze drying, and critical point drying techniques. Air dried lenses demonstrated artifacts analogous to those commonly seen in soft biological tissues when prepared in this manner ...
Matas, Brian R, Spencer, William H, Hayes, Thomas L   +2 more
openaire   +3 more sources

Femtosecond‐Laser Mould Texturing Enables Tunable Biointerfaces in COC Microfluidics

Advanced Materials Interfaces, EarlyView.
Femtosecond‐laser texturing of injection‐mould inserts enables scalable engineering of biointerfaces in cyclic olefin copolymer microfluidics. Replicated micro‐ and nano‐topographies modulate surface roughness and wettability, leading to texture‐dependent protein adsorption and cell adhesion without chemical post‐processing.
Irene Varela‐Leniz, Nora Larreategi, Laura Gemini, Taieb Bakouche, Florent Husson, Leire Gartzia‐Rivero, Eider Bilbao Castellanos, Ane Miren Zaldua, José Luis Vilas‐Vilela, Leire Etxeberria   +9 more
wiley   +1 more source

Advances in Halide Perovskites for Photon Radiation Detectors

Advanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang, Jieqi Wang, Xiaojun Cui, Carsten Ronning   +3 more
wiley   +1 more source

Experimental study of non-contact and contact ultrasonic impact on various types of intraocular lenses (IOLs) during phacoemulsification of a nuclear fragment over the IOL surface [PDF]

Клиническая офтальмология
E.S. Pirogova1, O.L. Fabrikantov1,2, S.I. Nikolashin1,2, S.V. Shutova1,2, K.V. Tovmach2, I.D. Kuziev2 1Tambov Branch of the S. Fyodorov Eye Microsurgery Federal State Institution, Tambov,   Russian Federation 2Derzhavin Tambov State ...
E.S. Pirogova, O.L. Fabrikantov, S.I. Nikolashin, S.V. Shutova, K.V. Tovmach, I.D. Kuziev   +5 more
doaj  

Overcoming Printing and Interfacial Challenges in Liquid Metal Direct Writing for Integrated Stretchable Electronics

Advanced Materials Technologies, EarlyView.
Liquid metal direct writing is advanced from a technological and fundamental point. Utilizing a kinematic bed, printing on large surfaces with irregularities is enabled. Furthermore, a pressure‐driven flow during printing is discovered that affects the thickness of traces.
Maximilian Krack, Lennert Purnal, Parth Vinayakrao Sewlikar, Sam Cuyvers, Gus Geurts, Rathul Nengminza Sangma, Derese Desta, Dieter Reenaers, Bart Ruttens, Iris De Graeve, Tom Hauffman, Seppe Terryn, Bram Vanderborght, Michaël Daenen, Wim Deferme, Monika Rai   +15 more
wiley   +1 more source

ESTUDIO IN VITRO DE LA CAPACIDAD DE GERMINACIÓN DE Aspergillus fumigatus EN LOS MATERIALES DE LENTES DE CONTACTO BLANDOS Y EFICACIA DE LAS SOLUCIONES MULTIPROPÓSITO CONTRA ESTE MICROORGANISMO

Universitas Scientiarum, 2007
Use of soft contact lenses medicated as well as cosmetic is routine. In spite of its comfort, they have a highprobability of being contaminated with microorganisms and must be regularly disinfected for itspreservation.
C. Parra-Giraldo, M.X. Cárdenas-Álvarez, T. Bossa-Flórez, M. Mayorga-Corredor   +3 more
doaj