Amino acids and poly(amino acids) as nucleating agents for poly(lactic acid)

Polyamino acids take amyloid form

Viva the worm ike yin and yang, good things usually come at a cost. If you live longer, then you give up reproductive fitness in return. The merits of this model—termed antagonistic pleiotropy—have been argued by evolutionary biologists for half a century. Some believe that the effort of reproduction is necessarily linked to deterioration characteristic of aging. have challenged the idea by unc...

Hydrogen-addition radicals formed in the aromatic rings of amino acids, polyamino acids, and proteins.

Since the original detection of electron spin resonance (ESR) signals from free radicals formed by ionizing irradiation in the amino acids and proteins,' numerous ESR studies of these and other powdered peptides have been made.2-'0 The free radicals that have been identified in these studies have been formed for the most part by the breakage of a CaH bond to leave the electron spin concenltrate...

Electrochemical Analysis of Polyamino Acids and Proteins

Influence of vegetable amino acids and oils supplementation of on Chlorella vulgaris amino acid profile

The aim of the present research is to investigate the profile of amino acid of Chlorella vulgaris supplemented with some plant amino acid and oil extracts. The bioactive oil and amino acid from four Iranian medicinal plants, namely Oliveria decumbens, Thymus kotschyanus, Trachyspermum ammi, and Zataria multiflora were obtained. The LC-MS / MS analysis demonstrated that the major amino acids com...

Synthesis and Biomedical Applications of Polyamino Acids

Polyamino acids are able to adopt ordered conformations, such as α-helices and β-sheets, through cooperative hydrogen bonding. These conformations impart polyamino acids with various unique properties and functions in biological environments. The development of controlled ring-opening polymerization (ROP) of α-amino acid N-carboxyanhydrides (NCAs) in the past two decades has enabled the synthes...