Results 111 to 120 of about 1,334,870 (300)

Terahertz imaging and spectroscopy of large-area single-layer graphene

, 2011
We demonstrate terahertz (THz) imaging and spectroscopy of a 15x15-mm^2 single-layer graphene film on Si using broadband THz pulses. The THz images clearly map out the THz carrier dynamics of the graphene-on-Si sample, allowing us to measure sheet ...
A. D. Jameson, A. M. van der Zande, Bae, Berger, Brumfiel, Castro Neto, Choi, Dragoman, E. D. Minot, Ferrari, Geim, Geim, J. L. Tomaino, J. W. Kevek, Kim, Lee, Li, Li, Lin, M. J. Paul, Mak, Nahata, P. L. McEuen, Pisana, Ponomarenko, R. A. Barton, Rangel, Ryzhii, Tan, Wang, Yun-Shik Lee, Zhang   +31 more
core   +1 more source

Coacervates Made of Elastin‐Like Polypeptides Fused with Melanocyte‐Stimulating Hormone and Monocyte Chemoattractant Protein Enhance Skin Wound Healing in Spinal Cord‐Injured Mice

Advanced Healthcare Materials, EarlyView.
Pressure skin wounds are frequent complications after spinal cord injury (SCI), with impaired healing due to vascular and immune deficits. Elastin‐like polypeptides (ELP) fused to α‐MSH (MSH‐ELP) or MCP‐1 (MCP‐ELP) are developed and tested on these wounds. The resulting nanoparticles are non‐toxic and bioactive, and they enhance macrophage recruitment,
Suneel Kumar, Dhruv Patel, Greeshma Manjunath, Shashank Madhavan, Ashley Mathew, Dnyaneshwari Rananavare, Jahnavi Shah, Francois Berthiaume   +7 more
wiley   +1 more source

Impact of substrate temperature on magnetic properties of plasma-assisted molecular beam epitaxy grown (Ga,Mn)N

, 2018
A range of high quality Ga1-xMnxN layers have been grown by molecular beam epitaxy with manganese concentration 0.2 < x < 10%, having the x value tuned by changing the growth temperature (Tg) between 700 and 590 {\deg}C, respectively.
Baraniecki, Tomasz, Dluzewski, Piotr, Domagala, Jaroslaw Z., Gas, Katarzyna, Hommel, Detlef, Jakiela, Rafal, Kowalska, Dorota, Kunert, Gerd, Miszczuk, Andrzej, Paszkowicz, Wojciech, Piskorska-Hommel, Edyta, Sawicki, Maciej, Sztenkiel, Dariusz, Szukiewicz, Rafal, Winiarski, Maciej J.   +14 more
core   +1 more source

Dual‐Peptide Nanoplatform: Mesoporous Silica Nanoparticles Functionalized With a Cell‐Penetrating Peptide and Loaded With Rationally Designed Antimicrobial Peptides for Tuberculosis Therapy

Advanced Healthcare Materials, EarlyView.
Machine learning–guided engineering of a plectasin‐derived peptide yields DC05, a potent antimycobacterial candidate. Encapsulation into tuftsin‐functionalized mesoporous silica nanoparticles enhances intracellular delivery, stability, and activity against Mycobacterium tuberculosis while maintaining low cytotoxicity and minimal hemolysis. The combined
Christian S. Carnero Canales, Cesar Augusto Roque‐Borda, Ana Carolina Cerqueira Negri, Oswaldo Ramirez Delgado, Letícia Oliveira Catarin Nunes, Flávia Aparecida Resende, Hernane Barud, Norival Alves Santos‐Filho, Saulo Santesso Garrido, Karen Cristina Oliveira, Alexandra Ivo de Medeiros, Rafael Miguel Sábio, Fernando Rogério Pavan   +12 more
wiley   +1 more source

Puckering effects of 4-hydroxy-l-proline isomers on the conformation of ornithine-free Gramicidin S

Acta Crystallographica Section E: Crystallographic Communications
The cyclic peptide cyclo(Val-Leu-Leu-D-Phe-Pro)2 (peptide 1) was specifically designed for structural chemistry investigations, drawing inspiration from Gramicidin S (GS).
Akiko Asano, Kanako Nakayama, Sakura Okada, Takuma Kato, Mitsunobu Doi   +4 more
doaj   +1 more source

Piezoelectric Surface Charge and Dynamic Stimulation Synergize to Promote Cardiac Myoblast Alignment and Maturation

Advanced Healthcare Materials, EarlyView.
Surface polarization of PVDF films combined with mechanical stimulation generates piezoelectric electrical cues that modulate cardiomyoblast behaviour. Non‐poled and poled PVDF substrates provide distinct electroactive microenvironments influencing cell adhesion, proliferation, and differentiation.
Rafaela M Meira, Sylvie Ribeiro, Senentxu Lanceros‐Mendez, Clarisse Ribeiro   +3 more
wiley   +1 more source

Oxygen Supply of Islets of Langerhans by Photosynthetically Active Microalgae in Bioprinted Co‐Cultures Maintains Their Function in a Hypoxic Environment

Advanced Healthcare Materials, EarlyView.
This study developed a bioprinted co‐culture system embedding rat pancreatic islets and Scenedesmus sp. microalgae spatially defined in close vicinity. Red light was found optimal to ensure microalgal photosynthesis while maintaining islet viability and functionality. A tailored co‐culture medium supported both cell types.
Finn Dani, Sarah Duin, Ashwini Rahul Akkineni, Susann Lehmann, Barbara Ludwig, Michael Kühl, Michael Gelinsky, Anja Lode   +7 more
wiley   +1 more source

3D Soft Hydrogels Induce Human Mesenchymal Stem Cells “Deep” Quiescence

Advanced Healthcare Materials, EarlyView.
Three‐dimensional soft hydrogels mimicking the bone marrow niche induce deep quiescence in human mesenchymal stem cells. Unlike 2D culture, 3D matrices halt proliferation, regulate cell‐cycle and quiescence markers, and downregulate mTORC1 signaling, preserving stem cell phenotype and therapeutic potential ex vivo.
David Boaventura Gomes, Timo Rademakers, Ana Filipa Henriques Lourenço, Andrea Calore, Clarissa Tomasina, Denis van Beurden, Jinjie Venema, Bryan Chömpff, Hong Liu, Nicole Bouvy, Sandra Camarero‐Espinosa, Lorenzo Moroni   +11 more
wiley   +1 more source

Integrating Vibrio natriegens for Photon Manipulation in Living Lighting Devices

Advanced Materials, EarlyView.
Rationalization of genetic and material engineering tools has enabled the engineering of fluorescent Vibrio natriegens (V. natriegens) to fabricate straightforward, highly emissive and stable V. natriegens‐silicones color filters for the first red‐emitting bacteria‐hybrid light‐emitting diodes. This pinpoints V. natriegens as a high‐performance protein
Stephanie Willeit, Maurice Hädrich, Philippe‐Quentin Liss, Valeria Rodriguez Espinoza, Nicklas Maximilian Foerster, Bastian Blombach, Rubén D. Costa   +6 more
wiley   +1 more source

Markarian 590: the AGN awakens

Monthly Notices of the Royal Astronomical Society: Letters
ABSTRACT Changing-look active galactic nucleus Mkn 590 recently underwent a sudden ‘re-ignition’, marked by substantial increases in optical/ultravilolet (UV) and X-ray continuum flux since last couple of years. Swift-XRT observations revealed the re-emergence of a soft X-ray excess as the source transitioned from a low-flux state in ...
Biswaraj Palit, Marzena Śniegowska, Alex Markowitz, Agata Różańska, Joseph Farah, D Andrew Howell   +5 more
openaire   +2 more sources