Search Results

1 - 8 of 8 items :

  • "survivability" x
  • Biomedical Engineering x
Clear All
Advanced approaches to produce polyhydroxyalkanoate (PHA) biopolyesters in a sustainable and economic fashion

Sedlacek P Mravec F Mullerova L Samek O Koller M et al Light scattering on PHA granules protects bacterial cells against the harmful effects of UV radiation Appl Microbiol Biotechnol 2018 102 4 1923 1931 14 Obruca S, Sedlacek P, Krzyzanek V, Mravec F, Hrubanova K, Samek O, et al Accumulation of poly (3-hydroxybutyrate) helps bacterial cells to survive freezing. PloS one 2016; 11(6): e0157778. 27315285 10.1371/journal.pone.0157778 Obruca S Sedlacek P Krzyzanek V Mravec F Hrubanova K Samek O et al Accumulation

Open access
Artificial cell microcapsules containing live bacterial cells and activated charcoal for managing renal failure creatinine: preparation and in-vitro analysis


Activated charcoal was microencapsulated with Lactobacillus acidophilus 314 previously adapted for urea uptake. The creatinine removal capacity of this combination microcapsule was evaluated in-vitro in media simulating the small intestine. Results show that microcapsules containing both activated charcoal and L. acidophilus 314 demonstrated potential for decreasing creatinine. Interestingly, when co-encapsulating both activated charcoal and L. acidophilus 314 a smaller decrease in creatinine was observed than when encapsulating them separately. However, co-encapsulated microcapsules were more stable in various parts of the gastrointestinal system and survived longer in storage. These results suggest the feasibility of using microcapsules containing activated charcoal and probiotic bacteria as oral adjuvants for creatinine removal and provides a theoretical model for the use of these microcapsules to remove any unwanted metabolite.

Open access
Genetic testing for vascular anomalies

.07.001 Duffy K Genetics and syndromes associated with vascular malformations Pediatr Clin North Am 2010 57 5 1111 20 2 Happle R. Lethal genes surviving by mosaicism a possible explanation for sporadic birth defects involving the skin. J Am Acad Dermatol 1987; 16(4): 899-06. 10.1016/S0190-9622(87)80249-9 3033033 Happle R Lethal genes surviving by mosaicism a possible explanation for sporadic birth defects involving the skin J Am Acad Dermatol 1987 16 4 899 06 3 Amyere M, Aerts V, Brouillard P, McIntyre BA, Duhoux FP, Wassef M, Enjolras O

Open access
Switching from petro-plastics to microbial polyhydroxyalkanoates (PHA): the biotechnological escape route of choice out of the plastic predicament?

), and elevates the burdens caused by chemical oxidants in general ( 58 ), and by sudden generation of reactive oxygen species (ROS) in particular ( 59 ). Regarding elevated salt concentrations (hyperosmotic conditions), presence of PHA granules in living microbes turned out to support the cells to better survive the harmful effects of osmotic up-shock; this also clarifies why PHA granules are found in so many haloarchaeal species isolated up to date from extremely saline ecological niches ( 57 ). Microbiology and genetic engineering to support PHA biosynthesis and

Open access
The genus Portulaca as a suitable model to study the mechanisms of plant tolerance to drought and salinity

T Tian C Global transcriptome profiling of Salicornia europaea L. shoots under NaCl treatment PloS ONE 20013 8 6 e65877 19 Ramani B, Reeck T, Debez A, Stelzer R, Huchzermeyer B, Schmidt A, Papenbrock J. Aster tripolium L. and Sesuvium portulacastrum L.: two halophytes, two strategies to survive in saline habitats. Plant Physiol Biochem 2006; 44(5): 395-408. 16806957 Ramani B Reeck T Debez A Stelzer R Huchzermeyer B Schmidt A Papenbrock J. Aster tripolium L. and Sesuvium portulacastrum L.: two halophytes, two

Open access
Contributions of biotechnology to meeting future food and environmental security needs

with up to 10% yield gains though expression of a sunflower HB4 modified homeodomain leucine zipper. Oak Ridge National Laboratory scientists in New York have recently published details of genes from Kalanchoe , Phaleonopsis (orchid) and Ananas cosmosus (pineapple) that appear to enable different drought-resistant plants to survive in semi-arid conditions ( 79 , 80 ). These findings, which followed an interdisciplinary investigation using plant physiology, bioinformatics, genomics and biochemical tools alongside a supercomputer, may prove of long term

Open access
MAB2.0 project: Integrating algae production into wastewater treatment

that without adaptation the strains could not survive in undiluted feedstock, thus different dilutions were tested and also the adaptive capacity of strains investigated. In the case study, the results of strain selection highlighted the importance of an adaptation period to the AD effluent. Outdoor production of microalgae is subject to seasonal temperature fluctuations which can affect the growth of algae. Because the incident sunlight is also heating the reactors, temperatures over 40°C can be reached in photobioreactors. In open ponds, since evaporation

Open access
Studies in Rheoencephalography (REG)

, leaving surviving brain tissue unprotected against the potentially harmful effect of blood pressure changes. Likewise, autoregulation may be lost in the surroundings of a space-occupying brain lesion, be it a tumor or a hematoma [ 70 ]. Below and above this limit or in pathological cases, CBF passively follows systemic arterial pressure. Beyond the lower limit of autoregulation, vessels passively collapse, and ischemia results. Beyond the upper limit of autoregulation or the “breakthrough zone”, increased intra-vascular volume and pressure results in vasogenic edema

Open access