Results 31 to 40 of about 2,833 (213)

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

open access: yesAdvanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Emprego da técnica Delphi para validação de indicadores de impacto de nanotecnologias agrícolas. [PDF]

open access: yes, 2013
Para estudar os impactos das nanotecnologias agrícolas é essencial avaliar quais fatores definem o sistema estudado com base na literatura especializada, embasando estes indicadores com dados científicos relevantes e de consenso na comunidade científica.
CARNIEL, B. F., JESUS, K. R. E. de
core  

Asymmetry of the Ferroelectric Phase Transition in BaTiO3

open access: yesAdvanced Materials, EarlyView.
Phase transitions are typically assumed to behave identically in forward and reverse. This work shows that in the ferroelectric material barium titanate this is not true: heating drives an abrupt, first‐order jump, while cooling gives a smooth, continuous change.
Asaf Hershkovitz   +14 more
wiley   +1 more source

Metodologia para avaliação de impactos das nanotecnologias: método e software Impactos-Nanotec. [PDF]

open access: yes, 2013
Resumo: Este trabalho apresenta a Metodologia / Software Irnpactos-Nanotec que permite a avaliação de impactos instruída e organizada com base em dados técnicos do projeto e da aplicação das nanotecnologias, podendo ser empregada antes ou após a sua ...
ASSIS, O. B. G. de, JESUS, K. R. E. de
core  

Strategies for Enhancing Thermal Conductivity of PDMS in Electronic Applications

open access: yesAdvanced Materials Technologies, EarlyView.
This review explores effective strategies for enhancing heat dissipation in Polydimethylsiloxane (PDMS)‐based composites, focusing on particle optimization, 3D network design, and multifunctional integration. It offers key insights into cutting‐edge methods and simulations that are advancing thermal management in modern electronic devices.
Xiang Yan, Marisol Martin‐Gonzalez
wiley   +1 more source

¿Quién es el dueño de los átomos? Nanotecnologías y derecho de propiedad intelectual

open access: yesÍconos, 2015
En América Latina, bajo la premisa de una mejor competitividad, han aumentado exponencialmente los recursos dirigidos al desarrollo de las nanotecnologías.
Tomás Javier Carrozza   +1 more
doaj   +1 more source

Indicadores de risco do desenvolvimento das nanotecnologias: uma ferramenta de apoio à decisão. [PDF]

open access: yes, 2015
Resumo: A nanotecnologia representa atualmente um negócio mundial que movimenta mais de 100 bilhões de dólares e atrai cada vez mais recursos humanos e financeiros, devido ao seu enorme potencial de aplicação.
ASSIS, O. B. G.   +2 more
core  

4D Printing of Multimaterial Flexible Magneto‐Active Polymers

open access: yesAdvanced Materials Technologies, EarlyView.
Magneto‐active polymers are 3D‐printed with tunable mechanical and magnetic properties using both superparamagnetic and hard ferromagnetic fillers. Nano‐CT imaging reveals the spatial distribution of particles within the matrix. Programmable magnetization patterns and soft, flexible architectures enable responsive actuation, offering exciting ...
Naji Tarabay   +6 more
wiley   +1 more source

Enhanced Energy Harvesting Performance of Biodegradable Polylactic Acid/3D Anodic Aluminum Oxide Composite Triboelectric Nanogenerators

open access: yesAdvanced Electronic Materials, EarlyView.
Polylactic acid (PLA) embedded in 3D anodic aluminum oxide (3D‐AAO) yields triboelectric nanogenerators (TENGs) with ɛeff = 5.1, delivering 20V and 108µW both per cm2. These agglomeration‐resistant, compostable/biocompatible devices retain 95% output after 104 cycles, enabling robust self‐powered Internet of Things (IoT) sensing.
Carlos G. Cobos   +5 more
wiley   +1 more source

Novas Tecnologias e Saúde [PDF]

open access: yes, 2014
Introdução Comecemos por algo simples: lidar e combater doenças sempre pressupõe alguma forma de domínio técnico, mesmo quando as práticas para obtenção da saúde estão culturalmente associadas a meios mágicos. Um aspecto importante da magia, seu sentido
Jonatas Ferreira   +1 more
core  

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