Results 81 to 90 of about 12,679,538 (309)

Icariin-Functionalized Coating on TiO2 Nanotubes Surface to Improve Osteoblast Activity In Vitro and Osteogenesis Ability In Vivo

open access: yes, 2019
Surface modification of titanium is encouraged to facilitate early osseointegration in dental and orthopedic fields. Icariin is the main active constituents of Herba Epimedii, which has good bone-promoting ability.
Yunjia Song   +9 more
core   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

Adsorption and Aggregation Behaviors of Oleyl Alcohol-Based Extended Surfactant and Its Mixtures

open access: yesMolecules
An oleyl alcohol-based extended surfactant, sodium oleyl polyethylene oxide-polypropylene oxide sulfate (OE3P3S), was synthesized and identified using FT-IR and 1H NMR.
Ping Li   +6 more
doaj   +1 more source

The Activity of Surfaces [PDF]

open access: yesNature, 1930
IN recent years a good deal of attention has been given to the relation between the catalytic effect of a surface and its structure, and in this connexion it is perhaps of interest to point out that the general idea underlying many theories was published by me in 1911 (J. Chem. Soc., 475 ff., 1911) in a qualitative form.
openaire   +1 more source

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

Biological and water quality study of Big Darby Creek and selected tributaries, 2001/2002 : Logan, Champaign, Union, Madison, Franklin and Pickaway counties, Ohio.

open access: yes, 2004
Title from home page (viewed on Aug. 23, 2006).; "Prepared by State of Ohio Environmental Protection Agency, Division of Surface Water ..."--PDF t.p.; "June 28, 2004."; Harvested from the web on 8/23 ...
Ohio EPA. Division of Surface Water.
core  

Surface phosphatase activities on roots of Pakistani wheat cultivars [PDF]

open access: yes, 1994
A study of the surface phosphatase activity of different wheat cuhivar roots was carried out, using two substrates, p-nitrophenyl phosphate (pNPP) and 4- methylumbellferyl phosphate (4-MUP), and different pH values ranging from 3 to 10.0.
Chandio, G. Mustafa
core  

Influence of Added Surfactants on the Rheology and Surface Activity of Polymer Solutions

open access: yesChemEngineering
Steady-shear rheology and surface activity of surfactant–polymer solutions were investigated experimentally. Four different polymers were studied as follows: cationic hydroxyethyl cellulose, nonionic hydroxyethyl cellulose, nonionic guar gum, and anionic
Rajinder Pal, Chung-Chi Sun
doaj   +1 more source

Antibacterial Activity of the Lipopeptide Biosurfactant Produced by Bacillus mojavensis PTCC 1696 [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2019
Bacillus mojavensis PTCC 1696 (a member of Bacillus subtilis group) has been isolated from the Iranian oil field (Masjed-I Soleyman), to examine its ability to produce biosurfactant (lipopeptide type) [28].
Hossein Ghojavand   +2 more
doaj  

Non-Aqueous Emulsions Stabilised by Nonionic Nonyl Phenol Ethoxylate Reactive Polymerisable Surfactants

open access: yesInternational Journal of Electrochemical Science, 2013
A new series of nonionic polymerisable nonyl phenol ethoxylates (NPEs) has been prepared as organic solvent-soluble surfactants in which straight, branched and cyclic alkyls and phenyl acted as solvophilic segment and polyoxyethylene, or maleate chains ...
Amro K.F. Dyab   +2 more
doaj   +1 more source

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