Results 91 to 100 of about 861,688 (365)

3D Printing of Photocrosslinked Alginate Dialdehyde‐Gelatin Hydrogels Reinforced with Cobalt‐Containing Mesoporous Bioactive Glass Nanoparticles for Developing Skin Wound Dressings

open access: yesAdvanced Materials Interfaces, EarlyView.
Bioactive multi‐crosslinked hydrogels are prepared from gelatin methacrylate (GelMA), methacrylate‐functionalized alginate dialdehyde (ADAMA), and Cobalt‐doped mesoporous bioactive glass nanoparticles (Co‐MBGNs), demonstrating optimized elasticity, cytocompatibility, and wound healing potential.
Ehsan Zeimaran   +4 more
wiley   +1 more source

Nuclear transfer to eggs and oocytes.

open access: yesCold Spring Harbor Perspectives in Biology, 2011
We review experiments in which somatic cell nuclei are transplanted singly to enucleated eggs (metaphase II) in amphibia and mammals and as multiple nuclei to the germinal vesicle of amphibian oocytes (prophase I).
J. B. Gurdon, I. Wilmut
semanticscholar   +1 more source

Biocompatible Porphyrin Derivatives Electron Beam and Extreme Ultraviolet Photoresists: High Resolution and High Etch Resistance

open access: yesAdvanced Materials Interfaces, EarlyView.
Porphyrin derivatives are introduced for electron beams and extreme ultraviolet lithography. The lithographic performance of the novel CuTP‐4Epoxy photoresist is excellent, with a resolution of 18 nm in EBL and 20 nm in EUVL, and the photoresist also exhibits high etch resistance.
Yurui Wu   +14 more
wiley   +1 more source

Wireless and Self‐Powered Wearable Pressure Sensors Based on Chitosan for Artificial Mechanoreceptors

open access: yesAdvanced Materials Technologies, EarlyView.
A novel self‐powered wearable pressure sensor is fabricated using chitosan‐ZnO composite piezoelectric film, achieving sensitivities of 70.71 mV/kPa and 471.43 mV Hz−1. This lightweight and biodegradable device emulates mechanoreceptors for applications such as object classification, wireless data transmission, and gesture recognition, offering an eco ...
Zhao Wang   +5 more
wiley   +1 more source

Reduction of the nutritional values of diets for hens through supplementation with phytase Redução do valor nutricional de dietas para poedeiras por meio da suplementação com fitase

open access: yesRevista Brasileira de Zootecnia, 2010
The aim of this work was to evaluate the effects of the reduction on nutritional levels of diets for semi-heavy hens during the laying peak on performance, egg quality and bone parameters.
Matheus Ramalho de Lima   +5 more
doaj   +1 more source

Miniaturized Devices for On‐the‐Spot Generation of Small‐Diameter Vascular Grafts

open access: yesAdvanced Materials Technologies, EarlyView.
An intracorporeal extrusion device is developed for on‐the‐spot generation of vascular grafts with tunable diameters spanning from 1 to 6 mm. The device uses biomimetic polymers and light, to promptly obtaining biocompatible and high‐burst pressure‐resistant grafts.
Deyanira Hernandez‐Sanchez   +11 more
wiley   +1 more source

Dual‐Wavelength Vat Photopolymerization With Dissolvable, Recyclable Support Structures

open access: yesAdvanced Materials Technologies, EarlyView.
Selective solubility vat photopolymerization (SSVP) uses a single resin to produce dissolvable thermoplastics and insoluble thermosets in a single 3D print. Wavelength‐selective curing and thermal post‐processing provide 3D spatial control over dissolution kinetics, enabling dissolvable support structures and programmable dissolution profiles.
Nicholas S. Diaco   +7 more
wiley   +1 more source

231-Avoiding Involutions and Fibonacci Numbers [PDF]

open access: yesarXiv, 2002
We use combinatorial and generating function techniques to enumerate various sets of involutions which avoid 231 or contain 231 exactly once. Interestingly, many of these enumerations can be given in terms of $k$-generalized Fibonacci numbers.
arxiv  

Nanotherapy for Neural Retinal Regeneration

open access: yesAdvanced Science, EarlyView.
Nanotechnology enhances ophthalmic treatments by improving drug delivery and regenerating ocular tissues, combating vision loss from retinal diseases through innovative nano‐systems. This review outlines ocular anatomy, pathology, immune microenvironment, and barriers, detailing nanocarrier characteristics, classification, and preparation methods, and ...
Chuyao Yu   +11 more
wiley   +1 more source

Observations préliminaires sur le fonctionnement des zones de frayères de la truite commune (Salmo trutta fario) dans deux cours d'eau ariégeois (le Salat et l'Alet)

open access: yesKnowledge and Management of Aquatic Ecosystems, 1990
Deux tronçons de cours d'eau ont été étudiés dans le département de l'Ariège : le Salat et son affluent l'Alet. Les zones où le gravier avait été remanié par les truites fario lors de la période de reproduction, habituellement définies comme des frayères,
PLASSERAUD O., LIM P., BELAUD A.
doaj   +1 more source

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