Procedures of immobilization invertase have been developed using different supports. However, disadvantages such as use of small particles for invertase immobilizations in packed-bed reactors are being solved using magnetic particles. In this study, composites containing Fe3O4 were prepared by incor...
Chitosan-based nanofibres were synthesized using a fibre electrospinning technique and tested for the removal of 3-methyl-4-nitrophenol from aqueous solutions. The downside of chitosan-based materials is swelling. In this study, it was found that the addition of polyisoprene not only improved the el...
Glutaraldehyde fixed xenogeneic heart valve prosthesis are hindered by calcification and lack of growth potential. The aim of tissue decellularization is to remove tissue antigenicity, avoiding the use of glutaraldehyde and improve valve integration with low inflammation and host cell recolonization...
Background Carboxyl-functionalized magnetic nanoparticles were synthesized via chemical co-precipitation method and modified with oleic acid which was oxidized by potassium permanganate, and κ-carrageenase from Pseudoalteromonas sp. ASY5 was subsequently immobilized onto them. The immobilization con...
"This paper investigates the problems and promises of teachers’ agency associated with Bolivia’s current “decolonising” education reform. The Avelino Siñani Elizardo Pérez (ASEP) education reform is part of a counter-hegemonic and anti-neoliberal policy that aims to advance the political project of...
The preparation of cross-linked enzyme aggregates (CLEAs) of lipase has been a challenge due the low amount of lysine residues that lipases have on their surface. The results show that CLEAs prepared using dextran aldehyde (100-200KDa) have a higher hydrolysis activity and particle size (activities...
The use of collagen in the biomedical device industry has led to major advances in soft tissue repair. This is attributed largely to the favourable biological and physiochemical properties of collagen. Regenerative medicine and tissue engineering favoured the use of this biomaterial and various comm...
The effect of glutaraldehyde, a commercial biocide widely used in paper and pulp industry, on the performance of laboratory-scale rotating biological contactors (RBCs) as well as biocide efficacy was studied. Biofilms were established on the RBCs and then exposed to 0 - 180 ppm glutaraldehyde at a d...
OBJECTIVE: To evaluate the feasibility of the off-bypass implantation of a self-expandable valved stent of large size in pulmonary position. MATERIALS AND METHODS: A glutaraldehyde preserved valved bovine jugular xenograft with internal diameter = 22 mm, mounted in two rings of nitinol 'Z' stent, ex...
Nous avons observé le mode de développement de Sphaeropsis hypodermia (isolé d'une branche d'orme (Ulmus americana) atteinte d'un chancre) dans les milieux suivants : un milieu gélosé (PDA), un tissu essuie-tout (Kimwipes), des blocs de bois d'orme stérilisés à l'autoclave, et des ormes d'Amérique i...
Document d'information spécialisée visant à présenter les recherches de l'I.U.T. de Compiègne en matière de cinétique enzymatique : immobilisation des enzymes par l'albumine et le glutaraldéhyde, technologie de l'électrode enzyme et ses applications pour notamment mesurer les substances produites pa...
Le glutaraldéhyde, tamponné par le bicarbonate de soude et en solution à 2 p. 100, stérilise les champs opératoires en non tissé aussi bien que les instruments de chirurgie, le matériel optique, le caoutchouc. La durée d'immersion est de 6 mn. L'essorage se fait à l’aide de matériel ménager usuel.
Des essais comparatifs avec des Anatoxines au formol ont montré des résultats sensiblement identiques ; mais la détoxication de la Toxine Tétanique par le glutaraldéhyde est obtenue après 10 mn de contact à 37° C, alors qu’il faut 1 mois pour détoxifier la Toxine Tétanique avec le formol. L’Anatoxin...