Results 91 to 100 of about 223,531 (304)

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +1 more source

Preparation and Mechanical Properties of Continuous Carbon Nanotube Networks Modified Cf/SiC Composite

Advances in Materials Science and Engineering, 2015
Continuous carbon nanotube (CNT) networks were formed in Cf/SiC composites via freeze-drying method. Composites were fabricated by precursor infiltration and pyrolysis (PIP) process afterwards.
Lei Wang, Feng Hou, Xin Wang, Jiachen Liu, Anran Guo   +4 more
doaj   +1 more source

Surface topography of microtubule walls decorated with monomeric and dimeric kinesin constructs [PDF]

, 2000
The surface topography of opened-up microtubule walls (sheets) decorated with monomeric and dimeric kinesin motor domains was investigated by freeze-drying and unidirectional metal shadowing.
Doerhoefer, Monika, Gross, Heinz, Hoenger, Andreas, Mandelkow, Eckhard, Song, Young Hwa, Tittmann, Peter, Woehlke, Guenther   +6 more
core   +2 more sources

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Screening of plants found in the State of Amazonas, Brazil for activity against Aedes aegypti larvae Triagem de plantas encontradas no Estado do Amazonas para atividade larvicida contra Aedes aegypti

Acta Amazonica, 2004
Ethanol, methanol and water extracts representing mostly native plant species found in the Amazon region were prepared, respectively, by maceration, continuous liquid-solid extraction and infusion, followed by evaporation and freeze-drying.
Adrian Martin Pohlit, Etienne Louis Jacques Quinard, Sergio Massayoshi Nunomura, Wanderli Pedro Tadei, Ari de Freitas Hidalgo, Ana Cristina da Silva Pinto, Elba Vieira Mustafa dos Santos, Sabrina Kelly Reis de Morais, Rita De Cássia Guedes Saraiva, Lin Chau Ming, Alexandre Mascarenhas Alecrim, Alfeu de Barros Ferraz, Andreza Cristiana da Silva Pedroso, Elisangela Vieira Diniz, Ellen Kathryn Finney, Erika de Oliveira Gomes, Hercules Bezerra Dias, Katiuscia dos Santos de Souza, Laura Cristina Pereira de Oliveira, Luciana de Castro Don, Maria Mireide Andrade Queiroz, Marycleuma Campos Henrique, Mirian dos Santos, Orivaldo da Silva Lacerda Júnior, Patrícia de Souza Pinto, Suniá Gomes Silva, Yara Rodrigues Graça   +26 more
doaj   +1 more source

From small to large-scale: a review of recombinant spider silk and collagen bioproduction

Discover Materials, 2022
Advancements in material science have led to the development of new composites and biomaterials. Spider silk and human collagen are examples of animal-derived polymers for which sourcing has been challenging.
Vasco Gomes, Sancha P. Salgueiro
doaj   +1 more source

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

Advanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal, Laura Calderón‐Rodríguez, Oksana Smirnova, Eren Grossmann, Aparna Binu Varghese, Karen Marlenne Garcia Alvarez, Andreas Schneemann, Thomas Hoyer, Ralf Wyrwa, Felix Helmut Schacher, Alexander Knebel   +10 more
wiley   +1 more source

Freeze-Derived Anisotropic Porous Microparticles for Engineered Mesenchymal Stem Cell Loading and Wound Healing

Research
Hydrogel microparticles that can effectively deliver mesenchymal stem cells (MSCs) are expected to accelerate wound repair progress. Attempts in the area are focusing on improving the functions of the microparticles and MSCs to promote the therapeutic ...
Rongwei Cai, Shuangshuang Miao, Xinyue Cao, Min Nie, Yuanjin Zhao   +4 more
doaj   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source