نتایج جستجو برای: surface hydrophobicity

تعداد نتایج: 639446  

Journal: :journal of physical & theoretical chemistry 2010
h. rajabzadeh d. nourouzian k. zare f. mollaamin

diminishing protein aggregation by chaperone is very important factor in medicine and industry. in this paper, itis induced the chaperone ability for 0-casein upon modification of its acidic residues by woodward reagentk(wrk) and examined on lysozyme as a target protein at ph 7.2 and outlined the mechanism for chaperoneability of modified system by uv-vis and fluorescence spectroscopy and theor...

2012
Yuya Seo Norihito Oshikawa Takuma Miyake Tatsuya Sakoda Tomikazu Anjiki

Dynamic drop test for studying the temporal lowering of hydrophobicity on the surface of silicone rubber with direct current voltage application was carried out. In this study, we evaluated the influence of the temporal lowering of hydrophobicity under various conductivities and dropping rates for water droplets. As a result, it was found that the dropping rate and the conductivity of water dro...

2013
Arjuna N.B. Ellepola Bobby K. Joseph Z.U. Khan

OBJECTIVE The objective of this study was to determine the cell surface hydrophobicity of 40 oral Candida albicans isolates obtained from smokers, diabetics, asthmatics using steroid inhalers, and healthy individuals, following brief exposure to subtherapeutic concentrations of chlorhexidine gluconate. MATERIALS AND METHODS Forty C. albicans oral isolates (10 isolates each from smokers, diabe...

Journal: :Biofouling 2007
Anand Jain K K Nishad Narayan B Bhosle

The effect of 2, 4-dinitrophenol (DNP) on the extracelluar polysaccharides (EPS), cell surface charge, and the hydrophobicity of six marine bacterial cultures was studied, and its influence on attachment of these bacteria to glass and polystyrene was evaluated. DNP treatment did not influence cell surface charge and EPS production, but had a significant effect on hydrophobicity of both hydrophi...

Ehsan Aliakbari Hamid Tebyanian, Mehdi Hassanshahian, Omidreza Sarrafi Seyed Hanif Mirhosseiny

Some properties of compounds in degrading bacteria are required for biodegradation of contaminants to higher performance. Those strains which have a high percentage of these features are more effective at biodegradation. The present experiments were designed to measure these parameters. In this study, measurement of cell surface hydrophobic-degrading bacteria was designed which oil was separate...

2008
P. WILLIAMS P. A. LAMBERT C. M. R. W. BROWN

The surface hydrophobicity of Klehsiella aerogenes is influenced by the presence of capsular (K) and lipopolysaccharide (0) antigens. Loss of both K and 0 antigens ( K 0 ) , but not the K antigen alone (K-O+), increased surface hydrophobicity and susceptibility to phagocytosis. Unheated serum (i.e., containing complement) increased the surface hydrophobicity and phagocytosis of the K-O+ and K 0...

Journal: :Journal of bacteriology 2004
Virginia Vadillo-Rodríguez Henk J Busscher Willem Norde Joop de Vries Henny C van der Mei

Variations in surface hydrophobicity of six Lactobacillus strains with and without an S-layer upon changes in ionic strength are derived from contact angle measurements with low- and high-ionic-strength aqueous solutions. Cell surface hydrophobicity changed in response to changes in ionic strength in three out of the six strains, offering these strains a versatile mechanism to adhere to differe...

Journal: :Journal of medical microbiology 1988
P Williams P A Lambert M R Brown

The ability of antibodies to cell-surface components of Klebsiella to increase surface hydrophobicity and to gain access to antigens potentially masked by the capsule was investigated. Treatment of capsulate or non-capsulate strains with the respective autologous antiserum resulted in a marked increase in surface hydrophobicity. Antisera raised against a rough non-capsulate (K-O-) strain had li...

Journal: :Applied and environmental microbiology 1992
G Smit M H Straver B J Lugtenberg J W Kijne

Initiation of flocculation ability of Saccharomyces cerevisiae MPY1 cells was observed at the moment the cells stop dividing because of nitrogen limitation. A shift in concentration of the limiting nutrient resulted in a corresponding shift in cell division and initiation of flocculence. Other limitations also led to initiation of flocculence, with magnesium limitation as the exception. Magnesi...

Journal: :Proceedings of the National Academy of Sciences 2019

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