Results 71 to 80 of about 1,594,383 (308)
Preservação de acessos de cucurbitáceas no Banco Ativo de Germoplasma (BAG) da Embrapa Semi-Árido - condicões atuais. [PDF]
, 2019 Como objetivo inicial testar a viabilidade do uso da sílico gel azul como dessecante em sementes de acessos previamente ...
GOMEZ CAMPO, C. +2 more
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Laser‐Assisted Processing and Modification of Bioactive Glasses: A Review
Advanced Healthcare Materials, EarlyView.Laser technologies provide powerful tools to process and transform bioactive glasses for advanced biomedical applications. This review discusses laser‐matter interaction mechanisms, laser surface engineering, and laser‐assisted fabrication of scaffolds and nanofibers.
Antonio Riveiro +8 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.3D printed hybrid scaffolds combining bioactive silica–calcium chemistry with elastic polymers guide human bone stem cells to form bone. The scaffolds support cell survival, organization, and invasion while releasing osteogenic ions. Together, architecture and composition drive bone‐specific gene expression, extracellular matrix organization, and ...
David R. Sory +3 more
wiley +1 more source
Alguns contributos da nanotecnologia para a sustentabilidade dos materiais de construção [PDF]
, 2012 Os avanços nanotecnológicos atingem inúmeras áreas da ciência, mas no âmbito da sustentabilidade dos materiais de construção os progressos embora importantes são escassos e acima de tudo objeto de reduzida divulgação.
Bragança, L. +2 more
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Advanced Healthcare Materials, EarlyView.Engineered microparticle topographies direct human mesenchymal stem cell osteogenesis without biochemical additives. This osteogenic commitment is driven by canonical Hedgehog signaling and followed by temporal IGF‐II engagement. Two‐photon polymerization demonstrates spatial control, enabling the engineering of topographical gradients that pattern ...
Fatmah I. Ghuloum +5 more
wiley +1 more source
South African Journal of Chemical EngineeringRecent research has reported on the extraction and synthesis of silica gels from a waste glass of chemicals. This study aims to optimize silica gel synthesized from chemical glass waste as heavy metal adsorbent Cu2+.
Yatim Lailun Ni'mah +2 more
doaj +1 more source
Determinação de cádmio em tabaco por extração em fase sólida acoplado em linha ao espectrômetro de absorção atômica em chama [PDF]
, 2009 TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Curso de Química.Neste estudo foi determinado cádmio em amostras de cigarro utilizando a técnica de extração em fase sólida associada a um sistema para a ...
Rios, Fernanda de J. de Araújo
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Oxidation reactions of derivatives of cis-octalins promoted by thallium trinitrate (TTN) [PDF]
, 2008 The reaction of ten cis-octalins and cis-octalones with thallium trinitrate (TTN) leads to different products, depending mainly on the substitution pattern of the substrate. Functionalized cis-hydrindanes were obtained from the reaction of 1,2,3,4,4a,5,8,
CARNEIRO, Vânia M. T. +3 more
core +2 more sources
Advanced Healthcare Materials, EarlyView.A two‐phase workflow (OFAT screening followed by central composite design) maps how processing variables tune PFCE‐PLGA nanoparticle size, dispersity, surface charge, loading, and 19F‐MRI signal. In situ, time‐resolved synchrotron SAXS tracks albumin‐corona growth on intact dispersions and reveals PFCE‐dependent adsorption pathways.
Joice Maria Joseph +11 more
wiley +1 more source
Production of silica gel from residual rice husk ash
Química Nova, 2011 This paper presents a study on the production of silica gel in hydrothermal process using residual rice husk ash. Measurements of the chemical composition, X-ray diffraction, infrared spectroscopy, particle size distribution, and pozzolanic activity were
Samantha Pinheiro Buás de Lima +6 more
doaj +1 more source