Results 121 to 130 of about 10,921 (266)
Atividades de Ensino e de Pesquisa em Química, 2019 O ensino de ciências da natureza ainda apresenta grandes dificuldades, podendo citar a inclusão da nanotecnologia e as suas respectivas áreas como uma das principais dificuldades de aprendizagens da disciplina.
Najara Vidal Pantoja +1 more
semanticscholar +1 more source
The Real Structure of Intergrown ZSM‐5/ZSM‐11 Industrial Zeolite Catalysts
Small Structures, EarlyView.Filtered electron microscopy images of intergrown ZSM‐5/ZSM‐11 catalysts reveal antiphase boundary defects (red curves 2 nm wide) formed of partial monolayers of ZSM‐11 linked by other defects. Some of these block diffusion along sinusoidal channels; others introduce larger channel intersections than in either zeolite, that can facilitate larger ...
Mervyn D. Shannon +4 more
wiley +1 more source
El despegue de las nanotecnologías
Ciencia Ergo Sum, 2005 La nanotecnología es presentada como la próxima revolución tecnológica. Sus voceros la consideran la solución para los principales problemas mundiales.
Noela Invernizzi, Guillermo Foladori
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Eukaryotic transcription factors can track and control their target genes using DNA antennas
Nature Communications, 2020 To carry out their function, transcription factors must efficiently recognize specific DNA sequence targets, a complex problem in the context of eukaryotic chromatin.
Milagros Castellanos +2 more
doaj +1 more source
Optical identification of atomically thin dichalcogenide crystals
, 2010 We present a systematic study of the optical contrast of diselenide (NbSe2) and molybdenum disulphide (MoS2) flakes deposited onto Si wafers with a thermally grown SiO2 layer.
Agraït, Nicolas +2 more
core +1 more source
The Mendeleev-Meyer force project [PDF]
, 2016 Here we present the Mendeleev–Meyer Force Project which aims at tabulating all materials and substances in a fashion similar to the periodic table. The goal is to group and tabulate substances using nanoscale force footprints rather than atomic number or
Amadei, Carlo Alberto +9 more
core +4 more sources
Metastability in Individual Magnetic Vortices at Low Temperatures
Small Structures, EarlyView.Magnetic vortices are becoming increasingly important for quantum technologies, yet their behavior at low temperatures remains poorly understood. This study employs advanced ion beam nanofabrication and superconducting sensors to measure individual nanodiscs, revealing clear signatures of metastability. By precisely controlling nanoparticle morphology,
David García‐Pons +8 more
wiley +1 more source
Nature Communications, 2018 Doping carbon nanomaterials with heteroatoms is the most common way to change their catalytic activity. Here, the authors show that the catalytic properties of single-walled carbon nanotubes can be modified by non-covalently encapsulating them within ...
Matías Blanco +9 more
doaj +1 more source
Structural characterization and electrochemical behavior of transition metal carbonates [PDF]
, 2011 III Encuentro sobre Nanociencia y Nanotecnología de Investigadores y Tecnólogos ...
Haghighi, S.M. +3 more
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