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The immobilization of microorganisms has been reported as an alternative to improve the efficiency of processes such as fermentation, anaerobic digestion, bioadsorption, and many others. Since the kinetics of bioprocesses are governed by the adsorbent/adsorbate interaction, it is important to know the mechanisms of interaction between biological materials and supports. This could help to define optimal operating conditions. In this research, the fungus that produces the cellulases, was selected, and the characterization of the interaction between fungal spores and cobalt ferrite magnetic nanoparticles, was performed. In order to select a fungal strain produces cellulase enzymes, a qualitative Congo Red test was carried out with a culture medium rich in carboxymethylcellulose. From five strains, Aspergillus niger was selected. Chitosan coated cobalt ferrite magnetic nanoparticles (CoMNP-C) were synthesized by single-step co-precipitation. The nano-size of CoMNP-C was demonstrated by XRD. The presence of a high content of amino groups (0.144 mM g-1) was observed, that could have an important role in the interaction between nanoparticles and spores. Adsorption kinetic studies were carried out. The pseudo-equilibrium time was estimated as 90 min. Spores adsorption isotherm was obtained with 3.45 mg of synthesized material at 30°C. It was found that the adsorption of spores may be described by both models (Langmuir and Freundlich), suggesting a homogeneous surface of the nanoparticles and a multilayer adsorption phenomenon. These results can have transcendence in multiple applications based on the studied process.
This article was published in the following journal.
Name: IEEE transactions on nanobioscience
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Depending on its purity, feldspar has a wide application in industry. Fungi play an important role in the feldspar purification. A bacterial leaching study of feldspar sample from Aydin, Turkey, was c...
In the present review, we summarized the applications of magnetic spinel ferrite nanoparticles as catalysts in organic reactions and transformations. Catalytic applications are comprised of using most...
In this study, the corrosion behavior of 7075-T6 aluminum alloy in a high salinity environment containing Aspergillus niger was investigated using high-performance liquid chromatography tandem mass sp...
Aspergillus niger (A. niger) and Syngonium podophyllum (S. podophyllum) have been used for wastewater treatment, and have exhibited a promising application in recent years. To determine the effects ...
Oral supplementation with enzymes that can cut gluten has been suggested as a potential treatment modality for coeliac disease. In the present study the investigators wish to determine if ...
The aim of this study is to demonstrate the beneficial effects on gut microbiota composition and activity of the diary intake of insoluble fiber (extract from Aspergillus Niger) for three ...
Silver nanoparticles are one of most nanoparticles use nowadays in the research area because it has specific physical and chemical properties, in medical fields silver nanoparticles can in...
The aim of this study is to compare the effectiveness of removal of spores and dirt from the skin using a single cloth bath against a cloth bath with extra rinse step, to establish whether...
The purpose of this study is to determine whether oral topic silver nanoparticles are effective to reduce potential pathogen microbial loads in mechanical ventilation patients.
Stable cobalt atoms that have the same atomic number as the element cobalt, but differ in atomic weight. Co-59 is a stable cobalt isotope.
An imperfect fungus causing smut or black mold of several fruits, vegetables, etc.
Unstable isotopes of cobalt that decay or disintegrate emitting radiation. Co atoms with atomic weights of 54-64, except 59, are radioactive cobalt isotopes.
Nanometer-sized particles that are nanoscale in three dimensions. They include nanocrystaline materials; NANOCAPSULES; METAL NANOPARTICLES; DENDRIMERS, and QUANTUM DOTS. The uses of nanoparticles include DRUG DELIVERY SYSTEMS and cancer targeting and imaging.
A species of imperfect fungi from which the antibiotic fumigatin is obtained. Its spores may cause respiratory infection in birds and mammals.
Biological therapy involves the use of living organisms, substances derived from living organisms, or laboratory-produced versions of such substances to treat disease. Some biological therapies for cancer use vaccines or bacteria to stimulate the body&rs...