Results 111 to 120 of about 1,071,502 (272)

Antioxidant and Anti‐Senescence Polyvinyl Alcohol‐Gallic Acid Supramolecular Hydrogels for Stem Cell Culture

Advanced Healthcare Materials, EarlyView.
The PVA‐GA hydrogel is formed through hydrogen bonding between PVA hydroxyl groups and GA galloyl units, enabling sustainable GA release and its extended biological activity. The hydrogel scavenges ROS to reduce oxidative stress, preventing mitochondrial damage from excessive ROS, mitigating hADSC senescence, and preserving VEGF secretion, offering a ...
Yiduo Zhou, Matías L. Picchio, Yan Nie, Lei Wang, Oihane Sanz, Yue Liu, Xun Xu, Lukas Prantl, Oliver Felthaus, Weiwei Wang, Marcelo Calderón, Nan Ma   +11 more
wiley   +1 more source

Hidden zeros for particle/string amplitudes and the unity of colored scalars, pions and gluons

Journal of High Energy Physics
Recent years have seen the emergence of a new understanding of scattering amplitudes in the simplest theory of colored scalar particles — the Tr(ϕ 3) theory — based on combinatorial and geometric ideas in the kinematic space of scattering data.
Nima Arkani-Hamed, Qu Cao, Jin Dong, Carolina Figueiredo, Song He   +4 more
doaj   +1 more source

Knowledge Discovery in Distance Relay Event Report: A Comparative Data-Mining Strategy of Rough Set Theory With Decision Tree [PDF]

, 2010
Mohammad Lutfi Othman, Ishak Aris, Senan Mahmod Abdullah, Md. Liakot Ali, Mohammad Ridzal Othman   +4 more
openalex   +1 more source

Soft Pneumatic Device Designed to Mimic the Periosteal Environment for Regulating the Fate of Mesenchymal Stem Cells

Advanced Healthcare Materials, EarlyView.
This study presents a custom‐made soft pneumatic device (SPD) that mimics complex mechanical forces and fluid flow to enhance in vitro cell differentiation. It shows that low mechanotransduction promotes MSC differentiation into osteoprogenitor cells, while high mechanotransduction causes structural disruptions and cell detachment, providing new ...
Gwang‐Bum Im, Jae Gyeong Lee, Hosub Lim, Jae‐Won Lee, Hyun Su Park, Yongju Kim, Nauman Asad, Hak‐Rin Kim, Jeong Jae Wie, Suk Ho Bhang   +9 more
wiley   +1 more source

Motor‐Free Soft Robots for Cancer Detection, Surgery, and In Situ Bioprinting

Advanced Healthcare Materials, EarlyView.
Novel motor‐free soft robots for cancer detection, surgery, and in situ bioprinting–are presented. This master‐slave system is constructed from soft fibrous syringe architectures, removing the need for electrical motors and complex control mechanisms, while reducing the physical tremors.
Chi Cong Nguyen, James Davies, Aditya Ashok, Trung Thien Hoang, Anahid Ehteda, Tran Bach Dang, Emanuele Nicotra, Hien A. Tran, Bibhu Sharma, Kefan Zhu, Phuoc Thien Phan, Adrienne Ji, Jingjing Wan, Jelena Rnjak‐Kovacina, Orazio Vittorio, Hoang‐Phuong Phan, Nigel Hamilton Lovell, Thanh Nho Do   +17 more
wiley   +1 more source

Morphogenic Growth 3D Printing

Advanced Materials, EarlyView.
I additive manufacturing process exploits the spatial propagation of a polymerization reaction front to produce 3D polymer parts 10× faster and 1000× more energy efficient than the fastest stereolithography. In contrast with existing 3D printing, this morphogenic process is inspired by biological “growth and form” due to the self‐directed propagation ...
Yun Seong Kim, Minjiang Zhu, Mohammad Tanver Hossain, Derrick Sanders, Rohan Shah, Yuan Gao, Jeffrey S. Moore, Nancy R. Sottos, Randy H. Ewoldt, Philippe H. Geubelle, Sameh H. Tawfick   +10 more
wiley   +1 more source

Tree-Verifiable Graph Grammars [PDF]

arXiv
Hyperedge-Replacement grammars (HR) have been introduced by Courcelle in order to extend the notion of context-free sets from words and trees to graphs of bounded tree-width. While for words and trees the syntactic restrictions that guarantee that the associated languages of words resp.
arxiv  

Synthetic Control of Water‐Stable Hybrid Perovskitoid Semiconductors

Advanced Materials, EarlyView.
Hybrid metal‐halide perovskites are promising semiconductors for optoelectronics, yet their water stability is problematic. A new synthesis method is developed using lead iodide and cysteamine under various pH conditions, forming stable perovskitoid structures.
Jiyoon Kim, Soumyadeep Ghosh, Nicholas W. G. Smith, Sunhao Liu, Yixuan Dou, Carla Slebodnick, Giti A. Khodaparast, Jin Qian, Lina Quan   +8 more
wiley   +1 more source

Multifunctional Neural Probes Enable Bidirectional Electrical, Optical, and Chemical Recording and Stimulation In Vivo

Advanced Materials, EarlyView.
Convergence drawing is used to create flexible, microscale, multifunctional fiber‐based neural probes. Optimized materials selection enables individual devices to perform neural recording, electrical stimulation, optogenetics, fiber photometry, fluid delivery, and voltammetric neurotransmitter detection in rodents.
Nicolette Driscoll, Marc‐Joseph Antonini, Taylor M. Cannon, Pema Maretich, Greatness Olaitan, Valerie Doan Phi Van, Keisuke Nagao, Atharva Sahasrabudhe, Emmanuel Vargas Paniagua, Ethan J. Frey, Ye Ji Kim, Sydney Hunt, Melissa Hummel, Sanju Mupparaju, Alan Jasanoff, B. Jill Venton, Polina Anikeeva   +16 more
wiley   +1 more source

High‐Yield Bioproduction of Extracellular Vesicles from Stem Cell Spheroids via Millifluidic Vortex Transport

Advanced Materials, EarlyView.
Stem cell spheroids, produced via a high‐throughput microfabrication technique, are transported within a vortex generated at the outlet channels of a cross‐slot millifluidic chip. For Reynolds number exceeding 170–200, intermittent high shear stresses applied to each spheroid within the vortex trigger a massive release of biologically active ...
Elliot Thouvenot, Laura Charnay, Noa Burshtein, Jean‐Michel Guigner, Léonie Dec, Damarys Loew, Amanda K.A. Silva, Anke Lindner, Claire Wilhelm   +8 more
wiley   +1 more source