Results 71 to 80 of about 21,014 (313)

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

Advanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado, Enqi Bu, Yaning Han, Carlos López‐Cartes, Mónica Calatayud, Huiyan Pan, Xiaowei Chen   +6 more
wiley   +1 more source

Real‐Time, Label‐Free Monitoring of Cell Behavior on a Bioelectronic Scaffold

Advanced Functional Materials, EarlyView.
A bioelectronic nanofibrous scaffold is introduced that supports cell growth while enabling real‐time, label‐free monitoring of cellular behavior through impedance measurements. The system correlates electrical signals with cell viability and surface coverage, offering an integrated platform for studying dynamic biological processes and advancing next ...
Dana Cohen‐Gerassi, Offir Loboda, Aakash Jog, Or Messer, Dor Aaron Goldstein, Tomer Reuveni, Moran Aviv, Amit Sitt, Yosi Shacham‐Diamand, Maxim Sokol, Lihi Adler‐Abramovich   +10 more
wiley   +1 more source

The Demographics of Rocky Free-floating Planets and their Detectability by WFIRST [PDF]

The Astrophysical Journal, 2017
Abstract Planets are thought to form via accretion from a remnant disk of gas and solids around a newly formed star. During this process, material in the disk either remains bound to the star as part of either a planet, a smaller celestial body, or makes up part of the the interplanetary medium; falls into the star; or is ejected from ...
Barclay, Thomas, Quintana, Elisa V., Raymond, Sean N., Penny, Matthew T.   +3 more
openaire   +2 more sources

Infrared Nanocrystals for Space Application: Hardness to Irradiations

Advanced Functional Materials, EarlyView.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret, Dario Mastrippolito, Bingbing Xia, Adrien Khalili, Maxime Lebreton, Giorgia Strobbia, Albin Colle, Marco Paye, Mariarosa Cavallo, Erwan Bossavit, Claire Abadie, Yoann Prado, Debora Pierucci, Victor Parahyba, Francois Coursaget, David Darson, Emrick Briand, Ian Vickridge, Stephane Demiguel, Sebastien Massenot, Jean‐Marc Belloir, Vincent Goiffon, Emmanuel Lhuillier   +22 more
wiley   +1 more source

Orbital Migration of Protoplanets in a Marginally Gravitationally Unstable Disk. II. Migration, Merging, and Ejection

The Astrophysical Journal, 2023
Protoplanets formed in a marginally gravitationally unstable (MGU) disk by either core accretion or disk instability will be subject to dynamical interactions with massive spiral arms, possibly resulting in inward or outward orbital migration, mergers ...
Alan P. Boss
doaj   +1 more source

Presence of liquid water during the evolution of exomoons orbiting ejected free-floating planets [PDF]

, 2023
Giulia Roccetti, Tommaso Grassi, Barbara Ercolano, Karan Molaverdikhani, A. Crida, Dieter Braun, A. Chiavassa   +6 more
openalex   +1 more source

Interactions Between Moderate- and Long-Period Giant Planets: Scattering Experiments for Systems in Isolation and with Stellar Flybys

, 2012
The chance that a planetary system will interact with another member of its host star's nascent cluster would be greatly increased if gas giant planets form in situ on wide orbits.
Aaron C. Boley, Adams, Barranco, Boley, Boley, Borucki, Caselli, Chatterjee, Crida, Dodson-Robinson, Duquennoy, Eric B. Ford, Heggie, Jurić, Kley, Kratter, Lada, Lafrenière, Lin, Lissauer, Mamajek, Marcy, Matthew J. Payne, Michael, Miller-Ricci, Nagasawa, Ogilvie, Press, Proszkow, Raghavan, Siegler, Spiegel, Veras, Zakamska, Zhu   +34 more
core   +1 more source

Theoretical models of planetary system formation. II. Post-formation evolution [PDF]

, 2015
We extend the results of planetary formation synthesis by computing the long-term evolution of synthetic systems from the clearing of the gas disk into the dynamical evolution phase.
Alibert, Y., Benz, W., Pfyffer, S., Swoboda, D.   +3 more
core   +3 more sources

The coolest 'stars' are free-floating planets

, 2014
We show that the coolest known object that is probably formed in a star-like mode is a free-floating planet. We discovered recently that the free-floating planetary mass object OTS,44 (M9.5, ~12 Jupiter masses, age ~2 Myr) has significant accretion and a substantial disk.
Joergens, V., Bonnefoy, M., Liu, Y., Bayo, A., Wolf, S.   +4 more
openaire   +2 more sources

All‐Aqueous Pullulan Fibers Enabling Visible‐to‐Near‐Infrared Waveguiding with Mechanical and Thermal Resilience

Advanced Functional Materials, EarlyView.
Pullulan, a biomass‐derived polysaccharide, is transformed into transparent optical fibers using a solvent‐free borax hydrogel‐spinning method. The fibers outperform PMMA with ≈200 MPa tensile strength and 200 °C stability, while uniquely guiding visible‐to‐NIR light and enabling additive‐free humidity sensing.
Yuya Fukata, Aayush Kumar Jaiswal, Ari Hokkanen, Hannes Orelma, Tadahisa Iwata   +4 more
wiley   +1 more source