Results 71 to 80 of about 601,255 (232)

Dynamic Fluorescence Modulation via Light‐Driven Competitive Protonation

Advanced Optical Materials, EarlyView.
A two‐component molecular system demonstrates reversible, light‐driven fluorescence write–erase cycling and thermal imaging. Illumination of a merocyanine photoacid transfers a proton to a highly efficient fluorescent pyridinium dye, switching its emission color; thermal relaxation reverses the process in the dark.
Serena X. Liu, Moritz E. Kleybolte, Colin van Dyck, Sergey I. Vagin, Preeti Gahtori, Antonio Scarpati, Razieh Firouzihaji, Diogo A. Galico, Ulrich S. Schubert, Julianne Gibbs, Alkiviathes Meldrum   +10 more
wiley   +1 more source

Emerging biomedical engineering strategies for hair follicle regeneration

Bioactive Materials
Hair follicle undergoes cyclical regeneration that relies on the spatiotemporal coordination of epithelial-mesenchymal interactions and multiple signaling pathways. However, hair follicle homeostasis is susceptible to disruption by various endogenous and
Xinyue Cao, Minhui Lu, Ning Li, Lijun Cai, Yu Wang, Yuanjin Zhao   +5 more
doaj   +1 more source

Hedgehog stimulates hair follicle neogenesis by creating inductive dermis during murine skin wound healing

Nature Communications, 2018
On wounding, scar formation in mammals arises causing no hair follicle regeneration, but it is unclear if scarring precludes regeneration. Here, the authors show that if Sonic hedgehog signaling is activated in the wound, an inductive dermal niche forms,
Chae Ho Lim, Qi Sun, Karan Ratti, Soung-Hoon Lee, Ying Zheng, Makoto Takeo, Wendy Lee, Piul Rabbani, Maksim V. Plikus, Jason E. Cain, David H. Wang, D. Neil Watkins, Sarah Millar, M. Mark Taketo, Peggy Myung, George Cotsarelis, Mayumi Ito   +16 more
doaj   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Mitochondria and Neuromast Tagging With Fluorescent Gallium‐Triapine Analogues: In Cellulo MP FLIM and Zebrafish Live Imaging

Advanced Science, EarlyView.
Fluorescent BODIPY‐conjugated thiosemicarbazone ligands and their Ga(III), In(III), and Fe(III) complexes, inspired by Triapine, are developed as theranostic agents. Multiphoton FLIM and confocal microscopy in cancer cells and zebrafish reveal real‐time uptake, mitochondrial localisation, and whilst spectroscopic assays indicated preserved complex ...
Megan J. Green, Michael W. Jones, Merissa Saleem, Haobo Ge, Melita Tvardauskaite, Julia Dudzic, Fernando Cortezon‐Tamarit, Rory L. Arrowsmith, Charareh Pourzand, Gabriele Kociock‐Kohn, Nicholas H. Rees, Jonathan R. Dilworth, Stephen Faulkner, Stanley W. Botchway, David Gurevich, Sofia I. Pascu   +15 more
wiley   +1 more source

Lgr5-Positive Supporting Cells Generate New Hair Cells in the Postnatal Cochlea

Stem Cell Reports, 2014
The prevalence of hearing loss after damage to the mammalian cochlea has been thought to be due to a lack of spontaneous regeneration of hair cells, the primary receptor cells for sound.
Naomi F. Bramhall, Fuxin Shi, Katrin Arnold, Konrad Hochedlinger, Albert S.B. Edge   +4 more
doaj   +1 more source

Release and elementary mechanisms of nitric oxide in hair cells

, 2010
The enzyme nitric oxide (NO) synthase, that produces the signaling molecule NO, has been identified in several cell types in the inner ear. However, it is unclear whether a measurable quantity of NO is released in the inner ear to confer specific ...
Song, Haitao, Smith, Peter J S, Yamoah, Ebenezer N, Lv, Ping, Eastwood, Emily, Yevgeniy, Petrov Y, Mu, Karen, Levic, Snezana, Wei, Dongguang, Zhu, Jun, Kim, Hyo Jeong, Choong-Ryoul, Sihn, Rodriguez-Contreras, Adrian   +12 more
core   +1 more source

Engineering Approaches to Modify Immunomodulatory Functions of Mesenchymal Stromal Cells (MSCs): Tissue Regeneration and Clinical Application

Advanced Science, EarlyView.
Mesenchymal stromal cells (MSCs) show promise for treating immune‐related disorders through immunomodulation and tissue regeneration. This review gives a brief overview of current clinical approval of MSC therapies. It also discussed how bioengineering, including genetic modification, biomaterial delivery, extracellular vesicles, and iPSC‐derived MSCs,
Sichen Yang, Kejia Li, Ning Wang, Zhen Li, Zhiyong Zhang, Rocky S. Tuan, Yangzi Jiang   +6 more
wiley   +1 more source

Platelet-derived growth factor signaling modulates adult hair follicle dermal stem cell maintenance and self-renewal

npj Regenerative Medicine, 2017
Hair loss: The protein that signals regeneration Signals from a protein that regulates cell division are essential to maintain the stem cells that regenerate hair follicles.
Raquel González, Garrett Moffatt, Andrew Hagner, Sarthak Sinha, Wisoo Shin, Waleed Rahmani, Andrew Chojnacki, Jeff Biernaskie   +7 more
doaj   +1 more source

Sustainable Fabrication of Tailored Bone Substitutes: From High‐Throughput Scaffold Manufacturing, Scaled‐Up HMSC Expansion to Dynamic Cultivation in a Perfusion Bioreactor

Advanced Science, EarlyView.
ABSTRACT The demand for off‐the‐shelf biocompatible bone substitutes has driven the development of numerous independent in vitro technologies to generate products resembling physiological tissues. Due to technical challenges and overly simplified cultivation approaches/niches, the end‐products are often uniformly shaped and inferior to native bone ...
Franziska Braun, Anna Paříková, Sandra Rother, Martin Kantor, Salman Muhammad Ilyas, Ricardo Bernhardt, Pavel Ndjawa Yomi, Jaromír Havlica, Revathi Appali, Benjamin Kruppke, Poh Soo Lee   +10 more
wiley   +1 more source