Results 241 to 250 of about 742,236 (299)

Electrically‐Driven 2D Semiconductor Microcavity Laser

open access: yesAdvanced Materials, EarlyView.
The first electrically‐driven 2D semiconductor microcavity laser is achieved at room temperature under AC voltage driving conditions. The demonstration of the compact 2D TMDC laser establishes a new area of research to assist with the implementation of diverse 2D material‐based practical photonic devices and integrated circuits in the future.
Zheng‐Zhe Chen   +8 more
wiley   +1 more source

Detecting the Six Polytypes of Five‐Layer Graphite

open access: yesAdvanced Materials, EarlyView.
The six possible periodic crystals—so‐called polytypes of Penta layer graphene are identified using Raman, second harmonic, and electric surface potential measurements. The measurements reveal the polytypes’ abundance, relative stability, and annihilation dynamics, crucial for future multiferroic SlideTronic applications.
Nirmal Roy   +5 more
wiley   +1 more source

Autonomous Implants

open access: yesAdvanced Materials, EarlyView.
An ideal implant should mimic native tissues such that it can integrate, sense, heal, and continue to function, i.e., be autonomous. Although early, there are good steps taken in this way, e.g., the development of stimuli‐responsive, self‐powering, self‐actuating, self‐healing, self‐regenerating, and self‐aware implants.
Jagan Mohan Dodda   +5 more
wiley   +1 more source

High‐Precision 3D Doping of Fused Silica Glass Derived from Nanocomposites

open access: yesAdvanced Materials, EarlyView.
The local integration of dopants enables the selective modification of color, luminescence or refractive index within a three‐dimensionally shaped glass with micron resolution. Following the fabrication of porous glass preforms and infusion with a dopant mixture, the dopant is immobilized by lithographic techniques and subsequently debinded and ...
Richard Prediger   +7 more
wiley   +1 more source
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Use of the Disposable Contact Lens as a Bandage Contact Lens

Archives of Ophthalmology, 1991
To the Editor. —Therapeutic soft contact lenses can be very useful in treating a variety of ocular surface problems, including bullous keratopathy, disorders of corneal wetting, conjunctival diseases, epithelial defects, and corneal ulcers. 1,2 Since July 1989, we have been using disposable extended-wear contact lenses (Acuvue [8.6-mm base curve, 14 ...
Walter J. Stark   +3 more
openaire   +3 more sources

A Contact Lens

Archives of Ophthalmology, 1997
Among thenumerous diseases of the cornea, there are many which change its normal form; this results in the production of distorted or even completely blurred retinal images, and accordingly vision suffers. Now there is a group of alterations in the form of the cornea, of which the bad effects upon vision may be removed by the use of glasses; these are ...
openaire   +2 more sources

Contact Lens Disinfectants

Ophthalmology, 2007
Purpose: To investigate the susceptibility of Pseudomonas aeruginosa and Fusarium solani , alone and together, to 4 contact lens disinfecting solutions. Methods: Five P. aeruginosa and one F. solani isolates were used. The following solutions were tested: Complete Moisture Plus (AMO Ireland, Dublin, Ireland), ReNu with MoistureLoc (Bausch ...
PINNA, Antonio   +3 more
openaire   +2 more sources

Contact lens complications

Ophthalmology Clinics of North America, 2003
Complications associated with contact lenses range from mild to severe and occur with all lens modalities. Contact lens wear can cause a change in corneal physiology, which can lead to epithelial, stromal, and endothelial compromise. Other complications include lens deposition, allergic conjunctivitis, giant papillary conjunctivitis, peripheral ...
Peter C. Donshik   +2 more
openaire   +2 more sources

Contact lens standards

Contact Lens and Anterior Eye, 1998
The British Standards Institution (BSI) is in the process of publishing an extensive series of standards relating to contact lenses which were originally formulated as International and European Standards. Standards specifying tolerance limits for the manufacture of rigid and hydrogel lenses have been based upon data on reproducibility derived from ...
openaire   +3 more sources

Contact Lens Cases: The Missing Link in Contact Lens Safety?

Eye & Contact Lens: Science & Clinical Practice, 2010
To summarize a variety of issues associated with contact lens case contamination and discuss appropriate methods that can limit this.A literature review was undertaken investigating the major factors associated with case contamination, with specific reference to the major pathogens associated with contamination, the role of bacterial biofilms, and ...
Brad Hall, Lyndon Jones
openaire   +3 more sources

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