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Showing 13 to 24 of 214 entries
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Preparation and characterization of a soluble dextran alpha(1) proteinase inhibitor complex.

Biotechnology and bioengineering

Mitra G, Coan MH.
PMID: 18553339
Biotechnol Bioeng. 1984 May;26(5):452-6. doi: 10.1002/bit.260260508.

Purified human alpha(1) proteinase inhibitor, a plasma glycoprotein with a molecular weight of 5.3 x 10(4) daltons and a major serine protease inhibitor has been covalently coupled to dextrans with molecular weights of 1.77 x 10(4) and 1.03 x...

Functional properties of hemoglobin immobilized in coacervates prepared from gelatin A and polyanionic carbohydrates.

Biotechnology and bioengineering

Brouwer M, Cashon R, Bonaventura J.
PMID: 18592584
Biotechnol Bioeng. 1990 Apr 05;35(8):831-6. doi: 10.1002/bit.260350811.

Complex coacervation is a phenomenon of phase separation that may occur in a solution of positively and negatively charged polyions. The resulting two phases are distinguished by the total concentration of both polyions, with the concentrated phase often containing...

Designing for optimum liquid repellency.

Langmuir : the ACS journal of surfaces and colloids

Extrand CW.
PMID: 16460095
Langmuir. 2006 Feb 14;22(4):1711-4. doi: 10.1021/la052540l.

In the current state-of-the-art, most super repellent surfaces are not sufficiently robust to move out of the laboratory into the commercial realm. With the hope of creating super repellent surfaces that could be employed in a wider variety of...

Contact angles of liquid drops on super hydrophobic surfaces: understanding the role of flattening of drops by gravity.

Langmuir : the ACS journal of surfaces and colloids

Extrand CW, Moon SI.
PMID: 20964303
Langmuir. 2010 Nov 16;26(22):17090-9. doi: 10.1021/la102566c. Epub 2010 Oct 21.

Measurement of contact angles on super hydrophobic surfaces by conventional methods can produce ambiguous results. Experimental difficulties in constructing tangent lines, gravitational distortion or erroneous assumptions regarding the extent of spreading can lead to underestimation of contact angles. Three...

FORMATION OF SEROLOGICALLY REACTIVE DEXTRANS BY STREPTOCOCCI FROM SUBACUTE BACTERIAL ENDOCARDITIS.

The Journal of experimental medicine

Hehre EJ, Neill JM.
PMID: 19871519
J Exp Med. 1946 Jan 31;83(2):147-62.

Serologically reactive dextrans were synthesized from sucrose by 22 of 48 strains of streptococci isolated from the blood of patients with subacute bacterial endocarditis. One strain formed an appreciable amount of levan as well as dextran. Nine strains of...

Synthesis of poly(epsilon-lysine)-grafted dextrans and their pH- and thermosensitive hydrogelation with cyclodextrins.

Chemphyschem : a European journal of chemical physics and physical chemistry

Choi HS, Yamamoto K, Ooya T, Yui N.
PMID: 15937894
Chemphyschem. 2005 Jun 13;6(6):1081-6. doi: 10.1002/cphc.200400598.

To give pH sensitivity to a thermoreversible supramolecular-structured hydrogel system, poly(epsilon-lysine) (PL), as a cationic polymer, was grafted to dextran and used for inclusion complexation with alpha-cyclodextrins (alpha-CDs). The synthesized graft copolymer was characterized by 1H NMR spectroscopy, and...

Determination of diffusion coefficients in biofilms by confocal laser microscopy.

Applied and environmental microbiology

Lawrence JR, Wolfaardt GM, Korber DR.
PMID: 16349228
Appl Environ Microbiol. 1994 Apr;60(4):1166-73. doi: 10.1128/aem.60.4.1166-1173.1994.

Microbial exopolymer may hinder the diffusion of nutrients, antibiotics, and other materials to the cell surface. Studies of diffusion in biofilms have been limited to indirect measurements. This study demonstrated the use of fluorescein and size-fractionated fluor-conjugated dextrans in...

Characterization of the Different Dextransucrase Activities Excreted in Glucose, Fructose, or Sucrose Medium by Leuconostoc mesenteroides NRRL B-1299.

Applied and environmental microbiology

Dols M, Remaud-Simeon M, Willemot RM, Vignon M, Monsan P.
PMID: 16349539
Appl Environ Microbiol. 1998 Apr;64(4):1298-302. doi: 10.1128/AEM.64.4.1298-1302.1998.

When grown in glucose or fructose medium in the absence of sucrose, Leuconostoc mesenteroides NRRL B-1299 produces two distinct extracellular dextransucrases named glucose glucosyltransferase (GGT) and fructose glucosyltransferase (FGT). The production level of GGT and FGT is 10 to...

Effect of 6% hydroxyethyl starch-450 and low molecular weight dextran on blood sugar levels during surgery under subarachnoid block: A prospective randomised study.

Indian journal of anaesthesia

Patki A, Shelgaonkar V.
PMID: 21189884
Indian J Anaesth. 2010 Sep;54(5):448-52. doi: 10.4103/0019-5049.71045.

Dextrans and hydroxyethyl starches produce significant levels of free glucose residues following metabolism. The following study was designed to compare 6% hydroxyethyl starch-450 with Dextran 40, both used as preloading fluids, for their potential to raise peri-operative blood glucose...

Physical properties of the cell wall of photoautotrophic suspension cells fromChenopodium rubrum L.

Planta

Gogarten JP.
PMID: 24221514
Planta. 1988 Jun;174(3):333-9. doi: 10.1007/BF00959518.

Photoautotrophic suspension cells ofChenopodium rubrum were used to determine Donnan potential, charge density and pore-radius distribution in the cell wall. Experiments were done either with turgescent cells or with isolated cell walls. Titration of a cell-wall-generated 9-aminoacridine fluorescence quench...

Diffusion properties of inkjet printed ionic self-assembling polyelectrolyte hydrogels.

Journal of materials chemistry. B

Limem S, Calvert P.
PMID: 26417449
J Mater Chem B. 2015 Jun 14;3(22):4569-4576. doi: 10.1039/C5TB00503E. Epub 2015 May 11.

In the present work, Crank's model was used to characterize solute transport in inkjet printed polyelectrolyte gels. The diffusion of a small charged molecule (fluorescein), various size linear uncharged molecules (dextrans), and a globular protein (albumin) in printed PSS-PDDA...

Comment on "Millimeter-Sized Hole Damming".

Langmuir : the ACS journal of surfaces and colloids

Extrand CW.
PMID: 29406719
Langmuir. 2018 Feb 20;34(7):2581-2582. doi: 10.1021/acs.langmuir.7b04401. Epub 2018 Feb 06.

In a recent article, Ng and co-workers (Langmuir 2017, 33, 13892-13898; doi: 10.1021/acs.langmuir.7b03290) demonstrated the ability of containers with a small hole in their bottom to resist the drainage of water. They used Laplace's capillary rise equation to explain...

Showing 13 to 24 of 214 entries