Impact of Side Chain Polarity on Non-Stoichiometric Nano-Hydroxyapatite Surface Functionalization with Amino Acids

[Adsorption of amino acids onto hydroxyapatite].

The interaction of Hydroxyapatite (HAP) with organic molecules is of biological importance, since the former is considered as the prototype mineral found in calcified tissues, such as bone and teeth. Some proteins display a high affinity for HAP and they are involved in the mineralization of bone. Another important aspect in biological systems is the role that various molecules play as inhibito...

Synthesis and Functionalization of Gold Nanoparticles by Using of Poly Functional Amino Acids

Synthesis and characterization of two functionalized gold nanoparticles by using of two poly functional amino acids (L-Arginine and L-Aspartic acid) are reported. The gold nanoparticles were reduced by sodium citrate and functionalized with L-Arginine at the pH of 7 and 11 and L-Aspartic acid at the pH of 7. Transmission electron microscopy, UV-Vis spectroscopy, dynamic light scattering, zeta p...

OPINION ON Hydroxyapatite (nano)

Helix propensities of basic amino acids increase with the length of the side-chain.

Helix formation in a 17-residue alanine-lysine peptide and analogous peptides with specific lysine --> X substitutions, where X is 2,3-diamino-L-propionic acid, 2, 4-diamino-L-butyric acid or L-ornithine, have been examined using circular dichroism measurements. The dependence of helix content on X, its position in the sequence, and the number of lysine --> X substitutions are reasonably well d...

The Effect Consumption of Pre-Exercise Branched Chain Amino Acids Consumption With Vitamin E Supplementation on Muscular Damage

Background& purpose: Today, among athletes, the use of amino acid supplements with the aim of reducing muscle injuries is more important than in the past. the aim of this study was to survey the effect of branched chain amino acids (BCAA) consumption before exhaustive exercise along with 1-month vitamin E supplementation on lactate dehydrogenase (LDH) and creatine kinase (CK) levels of active f...