Results 111 to 120 of about 1,402,601 (292)

Generation of Self‐Organizing Macrovascular Constructs by Bioprinting Human iPSC‐Derived Mesodermal Progenitor Cells

open access: yesAdvanced Science, EarlyView.
ABSTRACT Vascularization remains a major obstacle in tissue engineering. Here, we introduce a bioprinting strategy to generate centimeter‐scale, self‐organizing “mother vessel” constructs from iPSC‐derived hiMPCs. By optimizing bioink composition, printing was accomplished in a single‐step approach. Within one week, hiMPCs differentiated into both CD31+
Leyla E. Dogan   +5 more
wiley   +1 more source

Dynamic Evolution‐Controlled Parabolic‐Shaped Microstructures for Ultra‐Black Surface via Self‐Assembled Microsphere Mask Etching

open access: yesAdvanced Science, EarlyView.
A robust, substrate‐independent fabrication approach overcomes the spectral and geometric limitations of traditional stray‐light suppression. By combining ink spray‐coating with self‐assembled microsphere mask etching, this method produces parabolic‐shaped microstructures on diverse planar and curved engineering components.
Yiming Li   +5 more
wiley   +1 more source

Water‐Enabled Ultralong Full‐Color Organic Phosphorescence in Hydrogen‐Bonded Frameworks for 4D Encryption and Bio‐Imaging

open access: yesAdvanced Science, EarlyView.
Water‐induced quenching challenges organic RTP materials, but a counter‐intuitive strategy employs HOF to encapsulate carbonyl guests, where water functions as a structural reinforcer. This achieves water‐enhanced ultralong RTP with full‐color emission (blue to deep red), overcoming intracellular quenching for high‐signal cellular imaging, alongside 4D
Pengcheng Wu   +3 more
wiley   +1 more source

Alterations of coloration in the plumage of wild birds of Ecuador

open access: yesACI Avances en Ciencias e Ingenierías, 2015
This paper analyze 61 cases of plumage chromatic aberrations (total or partial absence of pigments in some or all feathers) in 43 species of wild birds, grouped into 21 families, including 51 new records and being the first report for these aberrations ...
Héctor F. Cadena-Ortiz   +3 more
doaj   +1 more source

CD31+ Cell Enrichment Enhances Therapeutic Effects of Stromal Vascular Fraction in Experimental Primary Osteoarthritis: A Preclinical Study in the Dunkin Hartley Guinea Pig Model

open access: yesAdvanced Science, EarlyView.
Both SVF and CD31+ SVF improve spontaneous osteoarthritis, but CD31+ enrichment refines the therapeutic profile rather than broadly enhancing all effects. More distinct benefits are observed in extracellular matrix remodeling, osteochondral integrity, and subchondral/trabecular bone preservation, supporting CD31+‐enriched SVF as a biologically enhanced
Sijia Zhou   +16 more
wiley   +1 more source

Multi‐Stimuli Responsive Viologen‐Crosslinked Eutectogels Derived From Natural Deep Eutectic Solvents for Information Security and Motion Detection

open access: yesAdvanced Science, EarlyView.
Described herein is the development of an organic eutectic gel based on a deep eutectic mixture of naturally derived betaine and lactic acid. The eutectic gels exhibit reversible color‐switching in response to multiple stimuli including strain, UV light, and temperature, enabling advanced applications in information security, intelligent wearable ...
Zhiang Bai   +3 more
wiley   +1 more source

Cartesian积与邻点可区别着色之间的关系(Relation between Cartesian product and adjacent vertex distinguishing coloring)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2017
A proper k-edge coloring of a graph G is an assignment of k colors 1, 2, …, k to edges of G such that any two adjacent edges receive the different colors.
WANGGuoxing(王国兴)
doaj   +1 more source

Hardware‐Attentive Programmable Fourier Ptychography Enables Task‐Adaptive Label‐Free Virtual Staining

open access: yesAdvanced Science, EarlyView.
Task‐adaptive programmable optics enables label‐free virtual staining through optical‐attention‐guided acquisition and reconstruction. By optimizing wavelength, illumination angle, exposure time, and imaging depth, the framework learns task‐relevant optical measurements, generating clinically interpretable virtual stains with improved fidelity, non ...
Tianyue He   +13 more
wiley   +1 more source

Total Colorings of Embedded Graphs with No 3-Cycles Adjacent to 4-Cycles

open access: yesDiscussiones Mathematicae Graph Theory, 2018
A total-k-coloring of a graph G is a coloring of V ∪ E using k colors such that no two adjacent or incident elements receive the same color. The total chromatic number χ′′(G) of G is the smallest integer k such that G has a total-k-coloring.
Wang Bing, Wu Jian-Liang, Sun Lin
doaj   +1 more source

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