Cellulose is a biopolymer that has long been used as a biomaterial and its different sources, as Bacterial Cellulose (BC), have shown to possess impressive mechanical properties, which can lead to the development of new biomedical implants. Bacterial Cellulose is a polysaccharide secreted by bacteria as Gluconacetobacter xylinus: BC is composed of highly hydrated nanofibrils and it is character...

Marine microorganisms contribute to the health of global ocean by supporting marine food web and regulating biogeochemical cycles. Assessing microbial diversity is a crucial step towards understanding ocean. The waters surrounding Iceland are complex environment where relatively warm salty from Atlantic cool down sink deep. Microbial studies in this area have focused on photosynthetic micro- na...

Background: Infection is a vital problem in intensive care units. Currently, chlorhexidine solution is used to reduce oral colonization. This study aimed to determine the efficacy of chlorhexidine solution on oropharyngeal bacterial colonization in hospitalized patients in the intensive care units. Methods: This descriptive study (from August 2018 to May 2019) was performed on 60 patients who ...

Spirulina platensis is a micro alga which contains many essential fatty acids, like gamma linolenic acid, stearic acid, myristic acid, linoleic acid, heptadecanoic acid etc. The composition of individual fatty acids had been found out through GC-MS analysis based on their retention time and molecular weight. Winterization procedure was used for the extraction of fatty acid mixture. Fatty acid m...

Molecular motors, which are precision engineered by nature, offer exciting possibilities for bio-hybrid engineered systems. They could enable real applications ranging from micro/nano fluidics, to biosensing, to medical diagnoses. This review describes the fundamental biological insights and fascinating potentials of these remarkable sensing and actuation machines, in particular, bacterial flag...

Wheat seedling blight caused by Fusarium culmorum, is one of the most common among wheat diseases. Last decades, use resistant cultivars and biological control antagonistic micro-organisms have received much attention. Resistance levels three (Saber Bag, Smito Sham 5) to this disease was assessed under greenhouse conditions. None high but Saber Bag showed highest germination rate 63.3%. This 11...

aims: the internal unit and icu of hospitals are a suitable environment for growing of bacteria such as staphylococcus epidermidis, pseudomonas and acinetobacters. the aim of this study was to evaluate the efficacy of using disinfectants on bacterial remove in isfahan city, iran, hospitals. instrument & methods: this descriptive study was performed in isfahan city, iran, hospitals in 2015. 200 ...

Buffy coat smears from febrile patients may contain visible bacteria and therefore detect bacteraemia before conventional blood cultures become positive. However, it is unusual to see micro-organisms in an otherwise untreated peripheral blood smear. The case of a febrile neutropenic patient is reported. A Wright's stained peripheral blood smear contained bacterial elements, thus making earlier ...

Urinary tract infection (UTI) is defined as the invasion and multiplication of non-resident pathogenic micro-organisms into the urinary tract, resulting in an inflammatory response in the urothelium, which progresses to overt disease. Urinary tract infections (UTIs) are considered one of the most common bacterial infections, and by some authorities the most common globally, accounting for a sig...