Results 71 to 80 of about 60,971 (294)

A 3D Biofabricated Disease Model Mimicking the Brain Extracellular Matrix Suitable to Characterize Intrinsic Neuronal Network Alterations in the Presence of a Breast Tumor Disseminated to the Brain

Advanced Functional Materials, EarlyView.
A 3D disease model is developed using customized hyaluronic‐acid‐based hydrogels supplemented with extracellular matrix (ECM) proteins resembling brain ECM properties. Neurons, astrocytes, and tumor cells are used to mimic the native brain surrounding.
Esra Türker, Mateo S. Andrade Mier, Jessica Faber, Mike Friedrich, Zan Lamberger, Jeannette Weigelt, Christian Stigloher, Nicoletta Murenu, Natascha Schaefer, Jörg Tessmar, Gregor Lang, Silvia Budday, Katrin G. Heinze, Antje Appelt‐Menzel, Pamela L. Strissel, Reiner Strick, Carmen Villmann   +16 more
wiley   +1 more source

Fabrication of Quasicrystalline Scaffolds From the Al-Cu-Fe System by Dynamic Freeze-Casting

Materials Research, 2023
In this study, scaffolds whose main phase is an icosahedral quasicrystal (i-QC) were prepared for the first time by dynamic freeze-casting. Two different metal powders were used here, namely pure aluminum and quasicrystalline particles from the Al-Cu-Fe ...
Miguel L. Lapér, Eduardo H.M. Nunes, Manuel Houmard, Witor Wolf   +3 more
doaj   +1 more source

A Smart Bio‐Battery Facilitates Diabetic Bone Defect Repair Via Inducing Macrophage Reprogramming and Synergistically Modulating Bone Remodeling Coupling

Advanced Functional Materials, EarlyView.
This research presents a novel implantable bio‐battery, GF‐OsG, tailored for diabetic bone repair. GF‐OsG generates microcurrents in high‐glucose conditions to enhance vascularization, shift macrophages to the M2 phenotype, and regulate immune responses.
Nanning Lv, Haifu Sun, Wenxiang Tang, Yonggang Li, Zhonglai Qian, Lihui Hong, Chong Chen, Hongye Li, Jiaxiang Bai, Yusen Qiao, Mingming Liu   +10 more
wiley   +1 more source

Poly(vinyl alcohol) freeze casts with nano-additives as potential thermal insulators

Scientific Reports, 2023
Freeze-casting consists of freezing a liquid suspension (aqueous or other), followed by sublimation of the solidified state to the gas state under reduced pressure, and subsequent sintering of the remaining scaffold to consolidate and densify the struts ...
C. Hübner, M. Vadalà, K. Voges, D. C. Lupascu   +3 more
doaj   +1 more source

Mechanotransducing Organic Electrochemical Diode for Crosstalk‐Inhibited Artificial Skin

Advanced Functional Materials, EarlyView.
An innovative approach is presented to a stretchable mechanotransducing diode that unifies rectification and tactile‐sensing functionality. This approach enables to fabricate the diode that maintains a large rectification ratio (5 × 102) at a high operational frequency (100 Hz).
Taeyeong Kim, Seunggoo Baek, Garrett Lecroy, Hyeongseok Choi, Wonjeong Suh, Woosung Cho, Alberto Salleo, Unyong Jeong   +7 more
wiley   +1 more source

Insights into freeze-cast hierarchical water–glass foams via in situ time-lapse phase-contrast enhanced microcomputed tomography: Correlating composition, microstructure, and compression failure

Materials & Design
We demonstrate how continuous freeze-casting without post-treatment sintering may be successfully employed using a pure water–glass (WG) solution to fabricate hierarchically porous foams lacking a morphology gradient along the freeze direction.
Liu Yang, Jonas Bansemer, Paul Zaslansky, Oliver Görke, Claudia Fleck   +4 more
doaj   +1 more source

Microstructural evolution of paramagnetic materials by magnetic freeze casting

Journal of Materials Research and Technology, 2019
External magnetic fields were applied during the process of directional solidification to control the microstructural patterning of ceramic scaffolds formed by freezing colloidal mixtures of magnetic and paramagnetic particles. Under low magnetic fields (
Pooya Niksiar, Michael B. Frank, Joanna McKittrick, Michael M. Porter   +3 more
doaj   +1 more source

Production and Characterization of a Silica-Alumina Membrane Using Novel Tubular Freeze-Cast Substrates [PDF]

Materials Research, 2019
Development of new ceramic membranes has recently grown due to its superior thermal and mechanical stability. An interesting approach to manufacture asymmetric membranes is the production of aligned pore structure by the freeze-casting method.
Daniel Dornellas Athayde, Ana Clara Amado Dolabella, Bruno Cunha Dias, Bruno Maciel Sousa, Débora Guimarães da Silva, Daniela Cordeiro Leite Vasconcelos, Wander Luiz Vasconcelos   +6 more
doaj   +1 more source

Freeze-cast Porous Chitosan Conduit for Peripheral Nerve Repair [PDF]

MRS Advances, 2018
A novel freeze-cast porous chitosan conduit for peripheral nerve repair with highly-aligned, double layered porosity, which provides the ideal mechanical and chemical properties was designed, manufactured, and assessed in vivo. Efficacies of the conduit and the control inverted nerve autograft were evaluated in bridging 10-mm Lewis rat sciatic nerve ...
Kaiyang, Yin, Prajan, Divakar, Jennifer, Hong, Karen L, Moodie, Joseph M, Rosen, Cathryn A, Sundback, Michael K, Matthew, Ulrike G K, Wegst   +7 more
openaire   +2 more sources

Endothelial Cells Angiogenesis in Sulfated Glycosaminoglycan (GAG) Hydrogels Enhanced by Bioactive Glass‐Released Ions

Advanced Functional Materials, EarlyView.
A mechanically tunable hydrogel composed of gelatin, chondroitin sulfate and laminin promotes angiogenesis in vitro without the supplement of growth factors. Endothelial cells morphogenesis was further enhanced by medium conditioned with bioactive glass 58S‐released ions (Ca and Si), thus offering a promising strategy to vascularize 3D tissue ...
Marco Piazzoni, Ilaria Borghi, Francesca Cadamuro, Sophia Dalfino, Riccardo Campanile, Sofia Nizzolo, Valeria Cassina, Francesca Tallia, Julian R. Jones, Francesco Mantegazza, Sabrina Bertini, Lorenzo Moroni, Francesco Nicotra, Laura Russo   +13 more
wiley   +1 more source