Results 21 to 30 of about 941,213 (269)

Comparison of Berkovich and spherical tip indentation for determining the Young’s modulus of polymer thin films encapsulated by a dielectric

Acta Polytechnica CTU Proceedings
Pixel integrated micro-lenses for CMOS image sensors consist of a stack of polymer acrylate resin films encapsulated by a dielectric layer. Due to the mismatch of thermomechanical properties, adhesive or cohesive fractures can occur.
Marina Melo de Lima, Vincent Mandrillon, Jennifer Hay, Laurent-Luc Chapelon, Christophe Poulain, Olivier Lebaigue   +5 more
doaj   +1 more source

Effect of Zirconia and Graphene Nanoparticles Loading on Thermo-Mechanical Performance of Hybrid Polymer Nanocomposite [PDF]

Archives of Metallurgy and Materials
This study demonstrates the development of a unique hybrid thermoplastic composite using reduced Graphene oxide (rGO) content and Zirconia (ZrO2) nanoparticles into the Ultra-High Molecular Weight Polyethylene (UHMWPE) biomaterials for continuous loading
Devendra Kumar Singh, Rajesh Kumar Verma, Sanjay Mishra   +2 more
doaj   +1 more source

Development of Finite Element Models of PP, PETG, PVC and SAN Polymers for Thermal Imprint Prediction of High-Aspect-Ratio Microfluidics

Micromachines, 2022
Polymeric microstructures and microchannels are widely used in biomedical devices, optics, microfluidics and fiber optics. The quality, the shape, the spacing and the curvature of microstructure gratings are influenced by different mechanisms and ...
Justas Ciganas, Paulius Griskevicius, Arvydas Palevicius, Sigita Urbaite, Giedrius Janusas   +4 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Advances in biomaterials for osteonecrosis treatment

Frontiers in Pharmacology
Osteonecrosis, or ischemic osteonecrosis, occurs when bone tissue dies due to a reduced blood supply. This process begins with the death of osteocytes and is followed by the development of necrotic bone tissue.
Dapeng Wang, Jiannan Li, Yu Liu, Shuaishuai Wang, Shuo Duan, Zhiyang Liu, Shuaiwei Li, Jun Liang, Guangwei Meng, Minglei Zhang   +9 more
doaj   +1 more source

Hydrogel Improved Growth and Productive Performance of Mango Trees under Semi-Arid Condition

Gels, 2022
Nowadays, the production of new mango cultivars is increased in many countries worldwide. The soil application of hydrogel represents a novel approach in the fruit trees industry.
Khalid S. Alshallash, Mohamed Sharaf, Ashraf E. Hmdy, Sobhy M. Khalifa, Hosny F. Abdel-Aziz, Ahmed Sharaf, Mariam T. S. Ibrahim, Khadiga Alharbi, Amr Elkelish   +8 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

Simultaneous delayed fluorescence and phosphorescence in organic luminescent material employing multiple excited states

Light: Science & Applications
Triplet dynamics play a key role in room temperature phosphorescence (RTP) and thermally activated delayed fluorescence (TADF). In this work, we report a model emitter with three emission components: prompt fluorescence (PF) in nanoseconds, delayed ...
Dehai Dou, Wenlan Liu, Xin Zhou, Qiqi Yang, Xiao Tan, Naz Ugur, Chongyao Li, Charusheela Ramanan, Xiaomin Liu, Gert-Jan A. H. Wetzelaer, Denis Andrienko, Martin Baumgarten, Paul W. M. Blom, Yungui Li   +13 more
doaj   +1 more source

Film coating of Enterolobium schomburgkii (Benth.) Benth seeds [PDF]

Brazilian Journal of Biology
The growing demand for native seeds in forest restoration projects highlights the importance of technical and technological knowledge in the propagation and maintenance of forest species.
M. M. R. Borges, C. F. Lisboa, D. G. Araújo, I. R. Teixeira, A. M. Antunes, H. S. D. Barros, P. H. C. Castro, C.S. Silva, C. R. A. Dias   +8 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source