نتایج جستجو برای: alginate alg

تعداد نتایج: 9635  

Journal: :Acta cirurgica brasileira 2014
Ciro Paz Portinho Luís Alberto Santos Thadeu Cerski Raquel Camara Rivero Marcus Vinícius Martins Collares

PURPOSE To evaluate experimental cranial vault reconstructions, by combining bone morphogenetic protein type 2 (BMP-2) and different matrices. METHODS Fourty-nine animals were initially included (seven per group). We designed an experimental, open, prospective and comparative study, divided in seven groups: 1 - BMP-2+calcium phosphate (BT); 2 - BMP-2+acellular dermal matrix (BM); 3 - BMP-2+ca...

2014
Bárbara M. Bonine Patricia Peres Polizelli Gustavo O. Bonilla-Rodriguez

This study reports the immobilization of a new lipase isolated from oleaginous seeds of Pachira aquatica, using beads of calcium alginate (Alg) and poly(vinyl alcohol) (PVA). We evaluated the morphology, number of cycles of reuse, optimum temperature, and temperature stability of both immobilization methods compared to the free enzyme. The immobilized enzymes were more stable than the free enzy...

2016

Submit Manuscript | http://medcraveonline.com Abbreviations: HPMC: Hydroxypropyl Methylcellulose; MC: Methylcellulose; PLGA: Poly (Lactide-co-Glycolide); CAP: Cellulose Acetate Phthalate; LCST: Low Critical Solution Temperature; UCST: Upper Critical Solution Temperature; PPO: Polypropylene Oxide; PEO: Polyethylene Oxide; MTA: Methozolamide; PNIPAAm: Poly (N-Isopropylacrylamide); GC: Guluronic A...

Journal: :Chemosensors 2022

Herein, the impact of chemical stability RedOx mediator ferricyanide, K3[Fe(CN)6] (FC), a type buffer solution used for bioreceptor preparation, gel composition (carboxymethylcellulose, CMC, Aerosile, AS, and alginate, ALG) on long term glucose test-strips their analytical performance was examined. By simple addition ALG to functional aiming improve its viscosity, we managed enhance sensitivity...

2011
Esteban Lozano Enrique Galindo Carlos F Peña

BACKGROUND The oxygen transfer rate (OTR) and dissolved oxygen tension (DOT) play an important role in determining alginate production and its composition; however, no systematic study has been reported about the independent influence of the OTR and DOT. In this paper, we report a study about alginate production and the evolution of the molecular mass of the polymer produced by a wild-type A. v...

2017
Hala AbdAllah Farrag Zeinab Galal Mohamed El-Sayed Mona Kamal

Colonization of biomaterials surface by Pseudomonas. Aeruginosa allows them form biofilms and be protected from host defense mechanisms and antimicrobial chemotherapy. Alginate production plays a central role in their pathogenesis. The research was to evaluate post irradiation effect on biofilm, hydrophobicity, resistance, alginate gene of Pseudomonas aeruginosa infection associated with urinar...

Journal: :Bioengineering 2023

Biomaterials with characteristics similar to extracellular matrix and suitable bioprinting properties are essential for vascular tissue engineering. In search biomaterials, this study investigated the three hydrogels alginate/hyaluronic acid/gelatin (Alg/HA/Gel), pre-crosslinked alginate di-aldehyde gelatin (ADA-GEL), methacryloyl (GelMA) respect their mechanical survival, migration, proliferat...

Journal: :Journal of Renewable Materials 2021

Alginate blended with cellulose nanocrystals (CNC), nanofibers (CNF), and tri-carboxylate (TPC-CNF) prepared encapsulated in the form of microcapsules (bio-polymeric beads). The cellulosic nanomaterials that used this study were investigated as for wastewater treatment applications. Batch experiments performed to removal copper, lead, magnesium, iron from aqueous solutions by beads. effects sor...

Journal: :Separation and Purification Technology 2022

Centimeter-scale composite biochar-alginate gel beads (MoS2B/CaCO3/Alg) were designed for the adsorption of Pb(II) in water using MoS2 modified biochar as filler, alginate matrix, and CaCO3 active additive component. The characterized scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR), diffraction (XRD), other techniques. MoS2B/CaCO3/Al...

Journal: :Materials & Design 2021

The acute wound healing process requires a quick and short-stage vascular endothelial growth factor (VEGF) supply, especially, in the early-stage of injury. To date, research has rarely met demand for controlled VEGF release. Herein, novel wheel spinning technique was introduced to fabricate alginate (Alg)/silk fibroin (SF) composite fiber loading achieving controllable In turn, it demonstrated...

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