نتایج جستجو برای: microbial cultures
تعداد نتایج: 212762 فیلتر نتایج به سال:
This study aimed to investigate the dependence of biocidal activity polyguanidine (co)polymers on their structure during formation biofilms by active PE-degrading cultures model microorganisms. The Bc-2 copolymer methacryloyl guanidine hydrochloride (MGHC) and diallyldimethylammonium chloride (DADMAC), which suppressed both growth planktonic cultures, exhibited highest activity. When PE was exp...
The occurrence of false-positive blood cultures in patients with acute myeloid leukemia has been rarely described in the literature. Awareness of this finding is important to avoid unnecessary delays in initiating appropriate cytoreductive therapy. Here, we present the case of a 70-year-old male with acute leukemia and persistently positive blood cultures despite broad-spectrum antibiotic thera...
Trimethylamine (TMA) N-oxide (TMAO), a gut-microbiota-dependent metabolite, both enhances atherosclerosis in animal models and is associated with cardiovascular risks in clinical studies. Here, we investigate the impact of targeted inhibition of the first step in TMAO generation, commensal microbial TMA production, on diet-induced atherosclerosis. A structural analog of choline, 3,3-dimethyl-1-...
Microbial fuel cell (MFC) involves the bioelectrochemical reaction which produces electricity by the microorganisms. MFC converts the biochemical metabolic energy to electrical energy through microbial catalyst at the anode under anaerobic conditions. It is the apt answer of alternative energy source in recent increasing energy crisis. In microbial fuel cells, bacteria generate electricity by m...
A total of 100 environmental samples were investigated for their ability to degrade 1 g/L surfactin as a substrate. Among them, two enrichment cultures, which exhibited microbial growth well degradation, selected and further investigated. After several successive cultivations, nanopore sequencing full-length 16S rRNA genes with MinIONTM was used analyze the bacterial species in cultures. Variov...
Abstract Background: Diagnosis of bacterial causes of cutaneous infections and determination of their resistance to different antibiotics is required for choosing the optimal treatment. This study was performed on bacterial cultures which were taken from patients with cutaneous infections. Materials and methods: Samples were collected from 110 patients with cutaneous infections referred to...
With the development of metabolic engineering, employment of a selected microbial host for accommodation of a designed biosynthetic pathway to produce a target compound has achieved tremendous success in the past several decades. Yet, increasing requirements for sophisticated microbial biosynthesis call for establishment and application of more advanced metabolic engineering methodologies. Rece...
Most bacteria and archaea in natural environments still cannot be isolated and cultivated as pure cultures in the laboratory, and the microbes that can be cultured appear to be quite different from uncultured ones. Consequently, the phylogenetic composition, physiological capacity and genetic properties of natural microbes have to be deduced from bulk properties of microbial assemblages, fluore...
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