Results 91 to 100 of about 192,249 (245)

Minimizing heterogeneity of sugarcane bagasse ash by silica extraction via sol gel process

Next Materials
This work proposes to extract silica via the sol-gel process using molecular precursors from four distinct sugarcane bagasse ashes. The process comprised cleaning, silica extraction using sodium silicate, and gel formation by lowering the solution pH ...
Samantha Coelho Pinheiro, Otávio Augusto Paiva, Romildo Dias Toledo Filho, Guilherme Chagas Cordeiro   +3 more
doaj   +1 more source

Tensile properties of in-situ precipitated polydimethylsiloxane networks

eXPRESS Polymer Letters, 2013
Tensile propertiesof polydimethylsiloxane (PDMS) networks filled with in-situ precipitated silica were investigated. Experimental results showed that increasing the swelling time of cured rubber sheets in tetraethoxysilane (TEOS) solution or elevating ...
Z. Zhang, Y-L. Yue, C. Zhang, H. Zhang, D-H. Zhang, X. Chen, Y-F. Chen   +6 more
doaj   +1 more source

Síntese de potenciais antagonistas do receptor b1 da bradicinina contendo o heterociclo dihidropiridazinona [PDF]

, 2010
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Curso de Química.Com base nas estruturas de seletivos antagonistas não peptídicos do receptor B1 da bradicinina, foram desenvolvidos novos análogos ...
Maximiano, Adrielle Patricio
core  

Modified silicas covalently bounded to 5,10,15,20-tetrakis(2-hydroxy-5-nitrophenyl)porphyrinato iron(III): synthesis, spectroscopic and EPR characterization. Catalytic studies [PDF]

, 2008
In this work we have studied cyclooctene epoxidation with PhIO, using a new iron porphyrin, 5,10,15,20-tetrakis(2-hydroxy-5-nitrophenyl)porphyrinato iron(III), supported on silica matrices via eletrostatic interaction and / or covalent bonds as catalyst.
GANDINI, Maria Elisa F., IAMAMOTO, Yassuko, MINORIN, Tatiana Stedile, NASCIMENTO, Otaciro Rangel, NERI, Cláudio R., SERRA, Osvaldo Antônio, VINHADO, Fábio S.   +6 more
core   +1 more source

Proteins, Processing, and Properties of Adhesive Fluid Condensates Purified from Mussels

Advanced Functional Materials, EarlyView.
Mussels exhibit an unmatched proficiency for adhering to wet surfaces in salty environments—a remarkable ability that could inspire new biomedical and technical glues. The fluid protein condensates used to form the underwater mussel glue are extracted, reconstituted and characterized with advanced spectroscopy and nanomechanical analysis, revealing ...
Mathieu D. Rivard, Max Renner‐Rao, Nahid Hassanpour, Franziska Jehle, Chang‐Sheng Wang, Duy Anh Pham, Daniel J. Jackson, Xavier Banquy, Matthew J. Harrington   +8 more
wiley   +1 more source

Photothermal Macroporous Lignin Cryogels for Off‐Grid, Continuous Atmospheric Water Collection via Interlayer Heat Recovery

Advanced Functional Materials, EarlyView.
Photothermal, macroporous lignin‐based cryogels are engineered to convert sunlight into low‐grade heat. Integrated as stacked beds in a drum‐type device, a thin copper interlayer transfers waste heat between beds, enabling interlayer heat recovery and continuous solar cycling.
Jie Yan, Jiqing Lu, Tian Bai, Lin Li, Zhaoxuan Niu, Yiying Yue, Wanli Cheng, Guangping Han, Orlando J. Rojas   +8 more
wiley   +1 more source

Emprego de sílica gel organicamente modificada e impressa ionicamente para pré-concentração seletiva on-line de íons cobre Employ of silica gel organically modified and ionically imprinted for selective on-line preconcentration of copper ions

Química Nova, 2010
The present work purposes the preparation of a silica gel sorbent organically modified with 2-aminoethyl-3-aminobutylmethyldimethoxysilane (AAMDMS) and imprinted with Cu2+ ions by means surface imprinting technique and its use for selective on-line ...
Thiago Carvalho de Ávila, Mariana Gava Segatelli, Luiz Alberto Beijo, César Ricardo Teixeira Tarley   +3 more
doaj   +1 more source

Estudio de la fracción insaponificable obtenida del aceite extraído de la semilla de la luffa cylindrica [PDF]

, 2008
Se obtuvo y caracterizo la materia insaponificable del aceite de las semillas de la Luffa Cylindrica procedentes de Risaralda suministrada por la empresa ESTROCOL. La materia prima se sometio a un proceso de secado para la posterior extraccion del aceite
Arcila González, Luis F., Fernández Tenorio, Juliana   +1 more
core  

Hybrid Microdiscs for Magnetically Induced Non‐Cytotoxic Thermal Actuation and Programmable Biomolecule Delivery

Advanced Functional Materials, EarlyView.
Hybrid magnetic microdiscs with customizable size and composition are engineered through refined photolithography and LbL assembly. Embedded Fe3O4 nanoparticles enable localized, non‐cytotoxic heating, while protein cargos can be incorporated in tunable quantities.
Daniela Iglesias‐Rojas, Danny Villanueva, Jon Mentxaka‐Salgado, Nerea Lete, Ane Olazagoitia‐Garmendia, Eduardo Fernández, Iñaki Orue, Alfredo García‐Arribas, Maria Luisa Fdez‐Gubieda, Ainara Castellanos‐Rubio, Robert Morel, Bernard Dieny, Maite Insausti, Idoia Castellanos‐Rubio   +13 more
wiley   +1 more source

PENGGUNAAN MATRIKS PENDUKUNG (SILIKA GEL) PADA TANAMAN KAYU APU (pistia stratiotes. l) SEBAGAI BIOSORBEN UNTUK MENGURANGI TINGKAT PENCEMAR ION TIMBAL (Pb2+)

Jurnal Riset Kimia, 2015
Problems of environmental became one of problem must be interested by public, One of them was the stain by ion lead (Pb2+). An experiment was conduct about the use of “Kayu Apu” (Pistia Stratiotes.
Sri Haryati, Elva Yasmi, Erviyenni -
doaj   +1 more source