Results 101 to 110 of about 311,588 (304)

Biomimetic Iridescent Skin: Robust Prototissues Spontaneously Assembled from Photonic Protocells

open access: yesAdvanced Functional Materials, EarlyView.
Uniform nanoparticles are induced to form arrays (photonic crystals) in the cores of biopolymer capsules, endowing these ‘protocells’ with structural color. These protocells are then assembled into large self‐standing objects, i.e., prototissues, with robust mechanical properties as well as iridescent optical properties.
Medha Rath   +6 more
wiley   +1 more source

Demonstration of Subretinal Injection Using Common-Path Swept Source OCT Guided Microinjector

open access: yesApplied Sciences, 2018
In this paper, we present the development of a handheld common-path swept source optical coherence tomography (CP-SSOCT) guided microinjector system and demonstrated its utility by precisely injecting fluorescein dye in the subretinal layer of ex vivo ...
Jin U. Kang, Gyeong Woo Cheon
doaj   +1 more source

Reevaluating the Activity of ZIF‐8 Based FeNCs for Electrochemical Ammonia Production

open access: yesAdvanced Functional Materials, EarlyView.
Though receiving much attention, the field of electrochemical nitrogen reduction reaction (eNRR) to ammonia is marked by doubts about whether this reaction is possible in aqueous media. This work sheds light on this question for iron single‐atom on N‐doped carbon (FeNC) catalysts—a class of well‐known catalysts that is also worth testing for the sister
Caroline Schneider   +6 more
wiley   +1 more source

Swept Source Optical Coherence Tomography - Visualizing Vitreous, Retina and Choroid Simultaneously

open access: yesDelhi Journal of Ophthalmology, 2017
Optical coherence tomography (OCT) has revolutionised ophthalmic imaging and management. It gives in vivo images of retina that can be correlated with histopathological analysis. Up to two thirds of blood supply of eye is derived from choroid.
Amit Gadkar, Vinod Kumar, Ruchir Tewari
doaj   +1 more source

Mechanochemistry‐Assisted Solvent‐Free Supramolecular Engineering for Atomic‐Layered Carbon Nitride Nanosheets with Enhanced Photocatalytic Hydrogen Evolution

open access: yesAdvanced Functional Materials, EarlyView.
A solvent‐free mechanochemistry‐enabled supramolecular engineering strategy is developed to directly synthesize covalent‐interconnected two‐dimensional atomic‐layered carbon nitride nanosheets photocatalyst, bypassing conventional top‐down exfoliation requirements.
Fanglei Yao   +7 more
wiley   +1 more source

Comparison of Far-Field Noise for Three Significantly Different Model Turbofans [PDF]

open access: yes, 2008
Far-field noise sound power level (PWL) spectra and overall sound pressure level (OASPL) directivities were compared for three significantly different model fan stages which were tested in the NASA Glenn 9x15 Low Speed Wind Tunnel. The test fans included
Woodward, Richard P.
core   +2 more sources

Faraday rotation of the supernova remnant G296.5+10.0: Evidence for a Magnetized Progenitor Wind

open access: yes, 2010
We present spectropolarimetric radio images of the supernova remnant (SNR) G296.5+10.0 at frequencies near 1.4 GHz, observed with the Australia Telescope Compact Array.
A. J. Green   +50 more
core   +1 more source

Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin   +7 more
wiley   +1 more source

Choroidal neurofibromas in neurofibromatosis 1

open access: yesOman Journal of Ophthalmology, 2022
Taha Muneer Ahmed, M A Rehman Siddiqui
doaj   +1 more source

Multimodal Imaging Analysis in a Case with Congenital Fovea-Involving Retinal Macrovessel and Excellent Visual Acuity

open access: yesCase Reports in Ophthalmological Medicine, 2017
Purpose. Congenital retinal macrovessels (CRM) represent rare aberrant vasculature of the retinal vessels that can supply or drain the macula. In this report, the optical coherence tomography angiography features of a congenital retinal macrovessel are ...
Vishal Shah   +2 more
doaj   +1 more source

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