Results 91 to 100 of about 119,393 (311)

Ultrathin Mesoporous Metal‐Organic Framework Nanosheets

open access: yesAdvanced Materials, EarlyView.
A bottom‐up interface‐directed co‐assembly strategy enables the synthesis of ultrathin 2D mesoporous UiO‐66(Ce) nanosheets with tunable thickness and uniform mesopores. The enhanced mass transport and accessible active sites significantly improve performance, highlighting the synergistic effects of 2D morphology and mesopores in metal‐organic ...
Yingji Zhao   +12 more
wiley   +1 more source

Thickness and Morphology Control in Laser‐Assisted Zone Casting of Ultrathin, Polycrystalline Films

open access: yesAdvanced Materials Interfaces, EarlyView.
This study demonstrates laser‐assisted zone casting (LAZEC), a novel contactless, wet deposition method allowing exceptionally high control of crystal morphology and thickness in ultrathin polymer and small molecule‐based films. The deposition mechanism relies on laser heating‐controlled Marangoni and capillary flows in solution, enabling scalable film
Adam Kiersnowski   +2 more
wiley   +1 more source

Grading diabetic retinopathy (DR) using the Scottish grading protocol

open access: yesCommunity Eye Health Journal, 2016
Although traditionally the features of DR have been identified through direct ophthalmoscopy or slit lamp biomicroscopy, digital photography is more sensitive than direct ophthalmoscopy and is comparable to slit lamp examination by a trained observer.
Sonia Zachariah   +2 more
doaj  

CORTICAL SPOKES CATARACT

open access: yesGomal Journal of Medical Sciences, 2019
A 40 years old man presented with bilateral mild dimness of vision and mild glare. Diffuse and focal illumination on slit lamp biomicroscopy did not reveal any pathology.
Muhammad Marwat
doaj   +1 more source

Matrix‐Free Quantum Dot‐Deposited Films with Perfect Color Conversion for Automotive Taillights

open access: yesAdvanced Materials Technologies, EarlyView.
This study represents an aerosol‐assisted deposition (AAD) method for fabricating host matrix‐free quantum dot (QD) films, achieving complete wavelength conversion without blue light leakage. The AAD enables bezel‐free patterned deposition, and the resulting prototype demonstrates vivid red emission, crisp color, and design flexibility, highlighting QD‐
Hyerim Ahn   +4 more
wiley   +1 more source

Toward Enhancing Chiro‐Optical and Magneto‐Optical Properties of Magnetic Nanocrystals by Surface Plasmons

open access: yesAdvanced Optical Materials, EarlyView.
Here, recent progress is highlighted in colloidal magnetoplasmonic hybrid nanomaterials, with a focus on chiral plasmonics. Metal nanocrystals with intrinsic chiroptical features can lead to a combination of chiral plasmonics and magneto‐optics effects when interacting with the magnetic counterpart, offering a foundation for systematically designing ...
Miguel Comesaña‐Hermo   +4 more
wiley   +1 more source

Mechanically Tunable Optical Response in Silicon Nanosphere Metasurface Fabricated via Bottom‐Up Process

open access: yesAdvanced Optical Materials, EarlyView.
A large area mechano‐tunable square lattice array of silicon nanospheres is fabricated by a bottom‐up process, and the capability to tune the lattice resonances by external strain is demonstrated. Spectrally overlapping the electric and magnetic dipole lattice resonances by mechanical strain induces the lattice Kerker effect and strongly suppresses the
Yongan Hu   +4 more
wiley   +1 more source

The illusion of posterior lenticonus in a patient of anterior lenticonus

open access: yesJournal of Clinical Ophthalmology and Research
The rare occurrence of both anterior and posterior lenticonus in association with Alport’s syndrome has been reported. However, the diagnosis of posterior lenticonus in these cases was based solely on slit-lamp examination, casting doubt on its accuracy.
Deeksha Rani   +3 more
doaj   +1 more source

Shocked H2 and Fe+ Dynamics in the Orion Bullets

open access: yes, 1998
Observations of H2 velocity profiles in the two most clearly defined Orion bullets are extremely difficult to reconcile with existing steady-state shock models. We have observed [FeII] 1.644um velocity profiles of selected bullets and H2 1-0 S(1) 2.122um
Brand, Peter W. J. L.   +2 more
core   +2 more sources

Magnetic Steganography Based on Wide‐Field Diamond Quantum Microscopy

open access: yesAdvanced Optical Materials, EarlyView.
This document illustrates magnetic steganography. Magnetic graphics, including pixel art and QR codes, are produced using magnetic materials (such as Ni) and obscure behind patterns manufactured using non‐magnetic materials (such as Au), which are unveiled through widefield quantum microscopy. Furthermore, manipulating the electron spin of NV with dual
Jungbae Yoon   +7 more
wiley   +1 more source

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