Results 61 to 70 of about 344,241 (194)

Microwave Absorption for Detection of Dirac Fermions in SnTe Films

Advanced Materials Interfaces, EarlyView.
Microwave absorption can detect Dirac fermions in samples exposed to the atmosphere. Results showed that although topological surface states are robust against environmental degradation, they are not detectable by electrical transport measurements. Hence, microwave absorption can detect Dirac fermions even in samples whose surfaces have deteriorated ...
Wellington P. do Prado, Jorge A. Navarro‐Giraldo, Muhammad Tahsin, Vinicius T. Santana, Eduardo Abramof, Paulo H. O. Rappl, Suelen de Castro, Marcelos L. Peres, Petr Neugebauer   +8 more
wiley   +1 more source

Thermodynamics of solids including anharmonicity through quasiparticle theory

npj Computational Materials
The quasiharmonic approximation (QHA) in combination with density-functional theory is the main computational method used to calculate thermodynamic properties under arbitrary temperature and pressure conditions.
Ernesto J. Blancas, Álvaro Lobato, Fernando Izquierdo-Ruiz, Antonio M. Márquez, J. Manuel Recio, Pinku Nath, José J. Plata, Alberto Otero-de-la-Roza   +7 more
doaj   +1 more source

Aptamer-Based Analysis: A Promising Alternative for Food Safety Control

Sensors, 2013
Ensuring food safety is nowadays a top priority of authorities and professional players in the food supply chain. One of the key challenges to determine the safety of food and guarantee a high level of consumer protection is the availability of fast ...
Sonia Amaya-González, Noemí de-los-Santos-Álvarez, Arturo J. Miranda-Ordieres, María Jesús Lobo-Castañón   +3 more
doaj   +1 more source

A Soft, Flexible Implant for Wireless Photothermal–Pyroelectric Neurostimulation

Advanced Science, EarlyView.
A replication strategy is used to enlarge the exposed surface area of barium titanate within flexible films with embedded carbon nanotubes, enabling efficient photothermal‐pyroelectric stimulation. Polar crystalline nanosheets show superior performance in guiding neural progenitor cells toward neuronal differentiation.
Jiang Wu, Minmin Mao, Beltzane Garcia Cirera, Hao Ye, Xiangzhong Chen, Josep Puigmartí‐Luis, Ni Qin, Salvador Pané   +7 more
wiley   +1 more source

Graphic User Interface for Monte Carlo Simulation of Ferromagnetic/Antiferromagnetic Manganite Bilayers

TecnoLógicas, 2011
The manganites have been widely studied because of their important properties as colossal magnetoresistance and exchange bias that are important phenomena used in many technological applications.
Hector Barco-Ríos, Edilberto Rojas-Calderón, Elisabeth Restrepo-Parra   +2 more
doaj  

Pyranine as Probe to Assess Antioxidant Activity of Free and Peptide Tryptophan and Tyrosine Residues Towards Peroxyl Radicals

Applied Sciences
Competitive reactions between additives and probes towards peroxyl radicals (ROO•) are usually employed to determine the antioxidant activity (AC) of bioactive peptides.
Angie C. Forero-Girón, Margarita E. Aliaga, Camilo López-Alarcón   +2 more
doaj   +1 more source

The role of Tris(2-carboxyethyl)phosphine reducing agent in the controlled formation of α,ω-Alkanedithiols Monolayers on Au(111) with monocoordinated and bicoordinated configurations [PDF]

, 2016
The addition of the reducing agent tris(2-carboxyethyl) phosphine (TCEP) during the formation of α,ω-alkanedithiols monolayers on Au(111) using the immersion method produces the assembly of monolayers with bicoordinated molecules (both S-terminal groups ...
Cometto, Fernando Pablo, Euti, Esteban, Leiva, Ezequiel Pedro Marcos, Macagno, Vicente Antonio, Paredes Olivera, Patricia, Patrito, Eduardo Martin, Velez, Patricio   +6 more
core   +1 more source

Designing Scalable Mechano‐Virucidal Nanostructured Acrylic Surfaces for Enhanced Viral Inactivation

Advanced Science, EarlyView.
Can a surface be designed to physically break viruses? This study explores how nanoscale geometry—specifically the spacing of tiny pillars—can determine whether viruses remain intact or rupture. Using flexible acrylic and a scalable fabrication process, the authors develop nanopillared, transparent surfaces that show strong antiviral activity without ...
Samson W. L. Mah, Denver P. Linklater, Vassil Tzanov, Chaitali Dekiwadia, Sergey Rubanov, Phuc H. Le, Laleh Tafakori, Ranya Simons, Graeme Moad, Soichiro Saita, Takashi Yanagishita, Hideki Masuda, Vladimir Baulin, Natalie A. Borg, Elena P. Ivanova   +14 more
wiley   +1 more source

Structural Insights into the HWE Histidine Kinase Family: The Brucella Blue Light-Activated Histidine Kinase Domain [PDF]

, 2016
In response to light, as part of a two-component system, the Brucella blue light-activated histidine kinase (LOV-HK) increases its autophosphorylation, modulating the virulence of this microorganism.
Arrar, Mehrnoosh, Berguer, Paula Mercedes, Cerutti, Maria Laura, Estrin, Dario Ariel, Goldbaum, Fernando Alberto, Klinke, Sebastian, Marti, Marcelo Adrian, Paris, Gastón, Rinaldi, Jimena Julieta, Sycz, Gabriela   +9 more
core   +1 more source

Programming the Optoelectronic Properties of Atomically Precise Gold Nanoclusters Using the Conformational Landscape of Intrinsically Disordered Proteins

Chemistry – A European Journal, EarlyView.
ABSTRACT The rational design of hybrid nanomaterials with precisely controlled properties remains a central challenge in materials science. While atomically precise gold nanoclusters (Au‐NCs) offer molecule‐like control over a metallic core, tuning their optoelectronic behavior via surface engineering is often empirically driven.
Santiago Rodriguez, Sylvain Kumanski, Zeineb Ayed, Aurélie Fournet, Charlène Bouanchaud, Amin Sagar, Frédéric Allemand, Vladimir A. Baulin, Ute Resch‐Genger, Juan Cortés, Nathalie Sibille, Fabien Chirot, Karl David Wegner, Rodolphe Antoine, Xavier Le Guével, Pau Bernadó   +15 more
wiley   +1 more source