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Effect of anilines as a synthesis component on the hydrophobicity of silica
(Elsevier, 2005-12)
This chapter investigates the grafting process on silica prepared by sol–gel. The principle of the investigation work consists in comparing the grafting of anilines, with different active groups, on silica to obtain different ...
Structural characteristics of P123-modified supercritical drying and hydrophobic ambient pressure drying aerogels
(2013-07-03)
Supercritical drying (SCD) and hydrophobic ambient pressure drying (APD) aerogels were prepared from hydrolysis of tetraethoxysilane in solutions of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (P123) ...
Structural characteristics of P123-modified supercritical drying and hydrophobic ambient pressure drying aerogels
(2013-07-03)
Supercritical drying (SCD) and hydrophobic ambient pressure drying (APD) aerogels were prepared from hydrolysis of tetraethoxysilane in solutions of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (P123) ...
The effect of hydrophobic and hydrophilic fumed silica on the rheology of magnetorheological suspensions
(JOURNAL RHEOLOGY AMER INST PHYSICS, 2009)
We investigate magnetorheological fluids (MRFs) prepared with carbonyl iron powder and different types of hydrophobic and hydrophilic fumed silica. The rheological properties of the MRF suspensions were investigated with ...
Avaliação de suportes hidrofóbicos aplicados à purificação de enzimas
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQCâmpus São Carlos, 2019-02-28)
Enzymes are biological catalysts that present diverse applications, representing interesting perspectives for use in several branches of the industry: agribusiness, biofuels, and pharmacist. However, the recovery of broth ...
Submicron silica shell–magnetic core preparation and characterization
(2018-01-20)
The magnetic extraction, purification, labeling and detection of biomolecules and cells are widely applied recently. In addition, the synthesis of silica magnetic particles for biomedical applications has been developed. ...
Lipases imobilizadas em suportes híbridos como biocatalisadores para a produção de ésteres de açúcares
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQCâmpus São Carlos, 2016-05-25)
The use of lipases in large scale processes is limited due to their high cost. The reuse of the catalyst can contribute to make the enzymatic process more attractive. Hydrophobic supports are the mostly used for lipase ...
Structure and thermal stability in hydrophobic Pluronic F127-modified silica aerogels
(2018-09-01)
Hydrophobic ambient pressure drying (APD) aerogels were prepared from hydrolysis of tetraethylorthosilicate (TEOS) in solutions with different concentrations of poly(ethylene oxide)–poly(propylene oxide)–poly(ethylene ...