Results 91 to 100 of about 8,574,289 (317)

A preparation technique for examination of wet-spun polymer fibers in a scanning electron microscope [PDF]

, 1975
In this paper the technique is discussed of sample preparation for freshly wet-spun polymer fibers, to be examined by scanning electron microscopy.\ud It makes use of cryogenic breaking of the samples, followed by freeze drying or freeze-etching of the ...
Jongh, M.A. de, Koenhen, D.M., Smolders, C.A., Yucesoy, N.   +3 more
core   +3 more sources

Self‐Assembling Peptide Hydrogels Support Stromal Vascular Fraction Viability to Promote In Vivo Nerve Regeneration

Advanced Healthcare Materials, EarlyView.
Stromal vascular fraction (SVF) may enhance nerve repair, especially when delivered in a self‐assembling peptide hydrogel (SAPH). In vitro, softer SAPH increased neuronal explant outgrowth and supported greater SVF viability and proliferation. In a rat sciatic defect, SVF in an optimized SAPH produced motor and sensory recovery equivalent to autograft ...
Liam A. McMorrow, Steffan Llewellyn, Jared McSweeney, Alessandro Faroni, Aline F. Miller, Alberto Saiani, Adam J. Reid   +6 more
wiley   +1 more source

Estudio de las diferentes rutas de síntesis renovables para la producción de Caprolactama

Dyna, 2018
No existen métodos para la síntesis biobasada directa de la caprolactama (CPL), la combinación de la producción biotecnológica de materias primas renovables con modificaciones por procesos físicos y químicos están emergiendo y mostrando resultados ...
Diego Alejandro Trujillo-Vera, Yesid Vélez-Salazar   +1 more
doaj   +1 more source

Hybrid Scaffolds Decouple Biochemical & Biophysical Regulation of Cell Phenotype

Advanced Healthcare Materials, EarlyView.
Replicating tissue‐specific extracellular matrix is crucial for understanding its role in disease. This work demonstrates independent control over stiffness, composition and 3D collagen architecture using hybrid scaffolds: patterned collagen perfused with defined hydrogels.
Xinyuan Song, Samantha C. Mitchell, Abbie N. Smart, William Hardiman, Daniel V. Bax, Ceri E. Staley, Catherine Probert, Pamela Collier, Marian Meakin, Alison A. Ritchie, Tania Mendonca, Amanda J. Wright, Victoria James, Anna M. Grabowska, Catherine L. R. Merry, Serena M. Best, Ruth E. Cameron, Jennifer C. Ashworth   +17 more
wiley   +1 more source

Human Brain Vasculature‐on‐a‐Chip Model Constructed With Microvessels Isolated From Cryopreserved Postmortem Human Brain Tissue

Advanced Healthcare Materials, EarlyView.
This manuscript describes the cultivation of viable microvessels from cryopreserved human brain tissue. When embedded in hydrogels and cultured in microfluidic devices, these microvessels exhibit complex architectures reminiscent of arterioles and capillaries, can be perfused, and display intact barrier function. Collectively, these results demonstrate
Brian J. O'Grady, A. Scott McCall, Samuel Cullison, Daniel Chavarria, Matthew S. Schrag, Ethan S. Lippmann   +5 more
wiley   +1 more source

Pivalolactone, 1 interchange reactions with polypivalolactone [PDF]

, 1993
Ester interchange, alcoholysis, and acidolysis of polypivalolactone (PPVL) were studied by melting PPVL with bisphenol diacetates, 1, 4-butanediol, or aromatic diacids.
Bantjes, Adriaan, Does, Leen van der, Tijsma, Edze Jan, Vulic, Ivan   +3 more
core   +2 more sources

Characterization of an Injectable Poly(vinyl alcohol)‐gelatin Hydrogel for Growth Factor Delivery in an Orthopedic Application

Advanced Healthcare Materials, EarlyView.
This work introduces photo‐crosslinkable tyraminated poly(vinyl alcohol)‐gelatin (PVA‐GT) hydrogels as tunable injectable platforms for tissue engineering and growth factor delivery applications. This schematic illustrates the two developed hydrogel formulations and the experimental workflow used to evaluate their physico‐chemical properties in vitro ...
Alessia Longoni, Gretel S. Major, Sam Arnold, Samuel Tomkins, Eugenia Spessot, Scott Loeffler, Kieran Lau, Richard Tan, Jessica Harte, Roslyn Kemp, Tess Reynolds, Jelena Rnjak‐Kovacina, Gary J. Hooper, Tim B. F. Woodfield, David C. Kieser, Khoon S. Lim   +15 more
wiley   +1 more source

Chemical recycling processes of Nylon 6 to Caprolactam: Review and Techno-Economic assessment

Chemical Engineering Journal, 2023
Ann-Joelle Minor, Ruben Goldhahn, L. Rihko-Struckmann, K. Sundmacher   +3 more
semanticscholar   +1 more source

Dynamic Modulation of the Microenvironment Promotes Functional Maturation of Engineered Tissues

Advanced Healthcare Materials, EarlyView.
Engineered tissues lack the dynamic microenvironment of native tissues. A biocompatible, diffusible small molecule to dynamically modulate tissue microenvironments during maturation is used. Timing‐dependent modulation yields distinct outcomes, producing thicker, more native‐like blood vessels, stronger and more mature cardiac tissues, and optimized ...
Eric Silberman, Hadas Oved, Itay Gil, Amgad Marzook, Ester Sapir Baruch, Yahel Shechter, Assaf Shapira, Tal Dvir   +7 more
wiley   +1 more source

Surface Inorganic Modification of Fly Ash and its Properties in Filling Nylon 6

Kuangchan zonghe liyong
Nano magnesium hydroxide was coated on the surface of fly ash by non-uniform nucleation method to carry out inorganic modification. The influence of different magnesium hydroxide coating amount (\begin{document}$\mathrm{m}_{\mathrm{Mg}(\mathrm{OH})_2 ...
Guoxin YAO, Caili WANG, Bin WANG, Ying QIU, Zhixue WANG, Runquan YANG   +5 more
doaj   +1 more source