Results 31 to 40 of about 192,249 (245)

Unlocking the Power of Quercetin‐Encapsulated Mesoporous Bioactive Glass Nanoparticles: A Multifunctional Approach to Bone Regeneration

Advanced Engineering Materials, EarlyView.
Mesoporous bioactive glass nanoparticles (MBGNs) are investigated for bone regeneration given their remarkable structural and functional properties. MBGNs are functionalized with Mn and Cu and incorporated with quercetin, a natural flavonoid exhibiting antioxidant, anti‐inflammatory, and antimicrobial properties.
Giovanni Lo Bello, Qaisar Nawaz, Pier Francesco Ferrari, Laura Pastorino, Roberto Raiteri, Aldo R. Boccaccini   +5 more
wiley   +1 more source

Surface Modification of Silica Gel by Interfacial Polyelectrolyte Complexes

Adsorption Science & Technology, 1999
Two types of modified silica gel have been prepared by constructing layers of a thermolabile interfacial polyelectrolyte complex on the surface of silica gel using diazo resin (DR) as the polycation and poly(sodium styrene sulphonate) (PSS) as the ...
Yongjun Zhang, Weixiao Cao
doaj   +1 more source

Effective separation of organic dyes using ionic liquids as green mobile phase and polyaniline-modified silica gel nanocomposite-based thin-layer chromatography

Journal of Analytical Science and Technology, 2017
Background Organic dyes are used for a wide variety of purposes including their applications in textiles, foods, printing cosmetics and pharmaceuticals.
Ali Mohammad, Mahfoozurrahman Khan, Qasim Ullah, Faiz Mohammad   +3 more
doaj   +1 more source

Efeito da desidratação na viabilidade de pólen de bananeira. [PDF]

, 2012
Foram testados dois métodos para desidratação de grãos de pólen de bananeira visando o determinar o teor de umidade que permitisse a manutenção da viabilidade, antes de submetê-los à criopreservação.
MENEZES, M. C., SEREJO, J. A. dos S., SOUZA, F. V. D.   +2 more
core  

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Coleta de folhas do cafeeiro e extração de DNA genômico de alta qualidade. [PDF]

, 2011
Para a amplificação do DNA in vitro, é necessário que o DNA genômico seja de boa qualidade. É comum que seja realizada a coleta do tecido vegetal em local distante de onde será feita a extração e análises do DNA e muitas vezes, o armazenamento inadequado
CARVALHO, B. L., PADILHA, L., PEREIRA, G. S., RESENDE, L. de, VON PINHO, E. V. de R., VON PINHO, I. V.   +5 more
core  

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

Advanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin, Anila Antony, Hongtao Cai, Antonia Debevc, Ceyda Topal, Anne Linhardt, Alla Synytska, Leonid Ionov   +7 more
wiley   +1 more source

Obtenção e caracterização de membranas assimétricas via sol-gel

Cerâmica, 2002
Foram obtidas membranas de sílica via sol-gel, utilizando-se tetraetilortossilicato (TEOS) como precursor em meio ácido. A estrutura da membrana é composta de uma camada de sílica mesoporosa (raio médio de poros igual a 21,6 nm) recoberta por um filme ...
Lenza R. F. S., Costa R. O. R., Vasconcelos W. L.   +2 more
doaj  

Study of the conditions of the ruthenium tetraoxide-promoted oxidative cleavage reaction of bicyclic β-hydroxy ethers [PDF]

, 2010
A systematic study of the reaction of β-hydroxy ethers with ruthenium tetraoxide (RuO4), generated in situ from ruthenium trichloride and sodium periodate, is presented, leading to nine-membered ring keto-lactones in moderate yields. Three different
FERRAZ, Helena M. C., LONGO JR, Luiz S., SCALFO, Alexsandra C., VILALBA, Bruno T.   +3 more
core   +2 more sources

Photocatalytic Versus Stoichiometric Hydrogen Generation Using Mesoporous Silicon Catalysts: The Complex Role of Sacrificial Reagents

Advanced Functional Materials, EarlyView.
This study highlights the importance of accounting for stoichiometric hydrogen produced when utilizing Si photocatalysts. The stoichiometric contribution is sacrificial reagent dependent and decreases with increasing sterics around the catalyst surface.
Sarrah H. Putwa, Sarah A. Martell, Berthold Reis, Simona Schwarz, Mita Dasog   +4 more
wiley   +1 more source