نتایج جستجو برای: bioseparation

تعداد نتایج: 122  

2015
Weifeng Zhao Karin Odelius Ulrica Edlund Changsheng Zhao Ann-Christine Albertsson

A one-pot synthetic methodology for fabricating stimuli-responsive hemicellulose-based hydrogels was developed that consists of the in situ formation of magnetic iron oxide (Fe3O4) nanoparticles during the covalent cross-linking of O-acetyl-galactoglucomannan (AcGGM). The Fe3O4 nanoparticle content controlled the thermal stability, macrostructure, swelling behavior, and magnetization of the hyb...

Journal: :Macromolecules 2022

Hydrogels which are hydrophilic and porous materials have recently emerged as promising systems for filtration applications. In our study, we prepare hydrogel membranes by the photopolymerization of a mixture poly (ethylene glycol) diacrylate (PEGDA) large poly(ethylene (PEG) chains 300 000 g.mol-1 in presence photoinitiator. We find that this addition free PEG induces non-linear increase water...

Journal: :Nanoscale 2013
Jining Gao Xinze Ran Chunmeng Shi Humin Cheng Tianmin Cheng Yongping Su

Highly charged hydrophilic superparamagnetic Fe3O4 colloidal nanocrystal clusters with an average diameter of 195 nm have been successfully synthesized using a modified one-step solvothermal method. Anionic polyelectrolyte poly(4-styrenesulfonic acid-co-maleic acid) sodium salt containing both sulfonate and carboxylate groups was used as the stabilizer. The clusters synthesized under different ...

2013
Timur Sh Atabaev Hyung-Kook Kim Yoon-Hwae Hwang

Bifunctional monodispersed Fe3O4 particles coated with an ultrathin Y2O3:Tb3+ shell layer were fabricated using a facile urea-based homogeneous precipitation method. The obtained composite particles were characterized by powder X-ray diffraction, transmission electron microscopy (TEM), quantum design vibrating sample magnetometry, and photoluminescence (PL) spectroscopy. TEM revealed uniform sp...

2010
Edward P. Furlani

Magnetic particles are finding increasing use in bioapplications, especially as carrier particles to transport biomaterials such as proteins, enzymes, nucleic acids and whole cells etc. Magnetic particles can be prepared with biofunctional coatings to target and label a specific biomaterial, and they enable controlled manipulation of a labeled biomaterial using an external magnetic field. In th...

Journal: :Vietnam Journal of Science and Technology 2022

Medicinal higher fungi such as Ganoderma lucidum and Phellinus igniarius have been used alternative medicine remedies to promote health longevity for people in Vietnam other regions of the world since ancient times. Nowadays there is an increasing public interest secondary metabolites those discovering new drugs or lead compounds. Current research drug discovery from medicinal involves a multif...

2014
Hannes Orelma Luis O. Morales Leena-Sisko Johansson Ingrid C. Hoeger Ilari Filpponen Cristina Castro Orlando J. Rojas Janne Laine

We attached anti-human serum albumin (anti-HSA) affibody ligands on bacterial cellulose (BC) by EDC– NHS-mediated covalent conjugation and physical adsorption and demonstrate their application for tubular biofiltration of blood proteins. The BC fibrils were first modified by carboxymethyl cellulose (CMC) by incorporation of CMC in the BC culture medium, producing in situ a CMC–BC tubular networ...

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