Results 81 to 90 of about 208,965 (228)

3D Closed‐Loop Navigation of Magnetic Microswimmers Using Vision‐Derived Depth Feedback

Advanced Intelligent Systems, EarlyView.
A planar magnetic microswimmer is navigated in three dimensions under a standard microscope. Image defocus supplies a real‐time depth cue, and model‐predictive control with A* planning steers the body on surfaces and in free swimming. Axial position is regulated by propulsion alone, without magnetic field gradients or extra cameras.
Yasin Cagatay Duygu, Sangwon Lee, Min Jun Kim   +2 more
wiley   +1 more source

Dual‐Crosslinked Betaine‐Based Amphiphilic Hydrogel as a Promising Vitreous Substitute: Anti‐Adhesion, Anti‐Fouling, and Anti‐Cell Proliferation

Advanced Science
Developing an ideal vitreous substitute remains a significant challenge in ophthalmic surgery. This study introduces a novel dual‐crosslinked betaine‐based amphiphilic polymer hydrogel (BAPHs) synthesized via in situ free radical copolymerization.
Yuting Cai, Yun Tan, Jian Cao, Xiaoyuan Zhou, Xingyuan Li, Jianghua Li, Chuntai Liu, Yi Zhang, Yun Li   +8 more
doaj   +1 more source

Design and engineering of a bio-responsive, nano-enabled vitreous substitute for the treatment of retinal diseases

, 2023
A dissertation submitted in fulfilment of the requirements for the degree of Master of Pharmacy, to the Faculty of Health Sciences, School of Therapeutic Sciences, University of the Witwatersrand, Johannesburg, 2023The vitreous humour is a soft gel ...
Naik, Kruti
core  

An experimental model of vitreous motion induced by eye rotations [PDF]

, 2015
Background: During eye rotations the vitreous humour moves with respect to the eye globe. This relative motion has been suggested to possibly have an important role in inducing degradation of the gel structure, which might lead to vitreous liquefaction ...
Alberto Lagazzo, Andrea Bonfiglio, Alessandro Stocchino, REPETTO, RODOLFO, STOCCHINO, ALESSANDRO, LAGAZZO, ALBERTO, Rodolfo Repetto, BONFIGLIO, ANDREA   +7 more
core   +1 more source

Platinum Electrodeposition in an Ionic Liquid Analogue. Solvent Stability Monitoring

International Journal of Electrochemical Science, 2013
The use of ionic liquid analogues as solvents has increased in order to substitute the aqueous solvents in some applications in which the side reactions are undesirable.
E. Gómez, E. Vallés
doaj   +1 more source

Late Holocene Occupation and Resource Use in the Sub‐Coastal Moreton Region: The Open‐Air Howard Creek Site, Southeast Queensland

Archaeology in Oceania, EarlyView.
ABSTRACT This paper reports archaeological investigations at the Howard Creek site, a Late Holocene open‐air site in the sub‐coastal Moreton region of southeast Queensland. The site adds to a regional record based largely on rockshelter excavations. Development‐led salvage investigations included excavation, radiocarbon dating, lithic analysis, and use‐
Irina A. Ponomareva, Cate Cunningham, Birgitta Stephenson   +2 more
wiley   +1 more source

Orthodentine‐osteodentine and osteocytic‐anosteocytic transition inferred from Silurian stem chondrichthyan dermal jawbones with ever‐white teeth overgrown by brown denticles

Developmental Dynamics, EarlyView.
Abstract Background The dentigerous jawbones of a 423‐million‐year‐old stem chondrichthyan (ischnacanthid acanthodian) carry a characteristic combination of multi‐row non‐shedding white teeth with brownish overgrowing denticles. The color distinction makes it a good model for observing the interaction between two odontode lineages, but the nature of ...
Jia‐Cih Kang, Henning Blom, Tiiu Märss, Donglei Chen   +3 more
wiley   +1 more source

Short‐Term Outcomes of Two Interventions for Patients With Active Proliferative Diabetic Retinopathy in an Urban, Safety‐Net Hospital

Health Care Science, EarlyView.
An additional weekly resident‐run panretinal photocoagulation (PRP) clinic and implementation of a high‐risk registry and appointment system were associated with a decreased wait time from proliferative diabetic retinopathy (PDR) diagnosis to PRP, increased 3‐month PRP completion rates, decreased 3‐month loss to follow‐up, and increased ophthalmology ...
Paul S. Micevych, Abu Tahir Taha, Anika Kumar, Jay M. Stewart   +3 more
wiley   +1 more source

Association between periodontitis and exudative retinal detachment: A population‐based cohort study

Journal of Periodontology, EarlyView.
Abstract Background To investigate whether periodontitis, a common bacterial‐induced inflammatory condition, serves as a risk factor for exudative retinal detachment (ERD), which results from fluid entering the subretinal space due to damage to the retinal pigment epithelium or leaky intraocular vessels, typically associated with inflammatory ...
Earl Fu, Ming‐Ling Tsai, Tsu‐Hsuan Weng, Chi‐Hsiang Chung, Min‐Wen Fu, Wu‐Chien Chien   +5 more
wiley   +1 more source

Stability analysis of the interface between aqueous humour and vitreous substitutes in vitrectomised eyes

, 2013
We study the stability of the interface between to immiscible fluids, the motion of which is induced by oscillations of a solid flat wall. The work represents a first step towards a mechanical understanding of the conditions leading to emulsification of ...
ISAKOVA, KRYSTYNA, REPETTO, RODOLFO, PRALITS, JAN OSCAR, M. Romano   +3 more
core   +1 more source