Results 81 to 90 of about 117,030 (304)

Titanocenos, antraquinonas, flavonoides y polimeros. RMN como denominador comun [PDF]

open access: yes, 2016
Se analizan diversos casos de identificacion productos naturales y de caracterizacion de mecanismos de reaccion mediante resonancia magnetica nuclearDEP QUIMICA ...
Fernández de las Nieves, Ignacio
core  

Microwave Absorption for Detection of Dirac Fermions in SnTe Films

open access: yesAdvanced 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   +8 more
wiley   +1 more source

Curiosidades

open access: yesRevista de Química, 1999
La sección no presenta resumen.
Revista de Química Revista de Química
doaj  

Nanozymes at the Bio‐Nano Interface: From Synthesis, Defect Engineering, Catalytic Behavior in Biological Microenvironments, and Biosafety Implications

open access: yesAdvanced Materials Interfaces, EarlyView.
Nanozymes (NZs) have emerged as versatile artificial enzymes with tunable catalytic properties driven by atomic coordination, defect engineering, and surface chemistry. This review presents a bio–nano interface framework linking synthesis strategies, structural design, and catalytic behavior within complex biological microenvironments.
Karen Guadalupe Quintero‐Garrido   +6 more
wiley   +1 more source

Preparação e Caracterização de Blendas Híbridas de Poliacrilonitrila e Quitosana

open access: yesOrbital: The Electronic Journal of Chemistry, 2015
In this work we report O estudo da interação de íons Fe(II) com a polianilina foi feito através da obtenção deste polímero na forma de salthe studies on polymer blend using the polymers polyacrylonitrile (PAN) and chitosan (CHI) in two compositions ...
Alessandro da Cruz Seabra   +3 more
doaj  

Ocorrência e supressão físico-química de fungos associados aos frutos e às sementes de ateira e gravioleira. [PDF]

open access: yes, 2011
Ocorrencia e suspensao fisico-quimica de fungos associados aos frutos e as sementes de ateira e gravioleira.
CARDOSO, J. E.   +4 more
core  

Short transmembrane domains with high-volume exoplasmic halves determine retention of Type II membrane proteins in the Golgi complex [PDF]

open access: yes, 2013
It is still unclear why some proteins that travel along the secretory pathway are retained in the Golgi complex whereas others make their way to the plasma membrane.
Gonzalez Montoro, Ayelén   +4 more
core   +1 more source

An Accessible Microfluidic Platform for the Generation of Polarized Brain Organoids

open access: yesAdvanced Materials Technologies, EarlyView.
This study presents an accessible double‐gradient microfluidic device that enables controlled morphogen delivery and spatially polarized differentiation in brain organoids. By integrating a pump‐free design and stable fabrication method, the platform generates dorsal–ventral neuronal asymmetry, offering a reproducible and versatile approach to model ...
Daniel Pérez‐Calixto   +6 more
wiley   +1 more source

Exploiting electron storage in TiO2 nanoparticles for dark reduction of As(v) by accumulated electrons [PDF]

open access: yes, 2013
UV irradiation of an ethanolic sol of TiO2 nanoparticles produces a trapped Ti(III) centre and a noticeable Burstein shift. Direct evidence that the accumulated charges can drive the otherwise forbidden reduction of As(V) by conduction band electrons ...
Aguirre, Matías Ezequiel   +6 more
core   +1 more source

Cyclodextrin‐Functionalized Light‐Driven Cu2O Micromotors for Simultaneous Capture and Degradation of Bisphenol A

open access: yesAdvanced Robotics Research, EarlyView.
Fuel‐free Cu2O‐based micromotors functionalized with β‐cyclodextrin actively remove bisphenol A from water under visible light. The cyclodextrin shell captures BPA and enhances micromotor motility, leading to faster degradation and higher overall removal than nonfunctionalized Cu2O and Cu2O@Au.
Luisa Natalia Cordoba Urresti   +3 more
wiley   +1 more source

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