By reaction of poly(L-lactic acid) (PLLA) membrane with 1,6-hexanediamine, free amino groups were introduced onto a PLLA surface, through which biocompatible macromolecules such as gelatin, chitosan, or collagen were covalently immobilized by employing glutaraldehyde as a coupling agent. The existence of free amino groups on the aminolyzed PLLA surface was verified quantitatively by the ninhydr...

The paper present results of studies the two-stage preparation C10-C12 tricyclic vicinal amino alcohols from partially hydrogenated condensation products cyclopentadiene and cyclohexa-1,3-diene, by epoxidizing them with hydrogen peroxide in presence cobalt-containing polyoxomolybdate, followed aminolysis oxidate diethylamine, morpholine, or piperidine. structure synthesized compounds was confir...

Increasing interest in lipases has been observed at the end of the last century, due to their potential application, in (bio)degradation as well as in (bio)synthesis of glycerides. The advantages of the enzymatic hydrolysis over the chemical process consist of less energy requirements and higher quality of the obtained products. Beside this, lipases are also efficient in various reactions such ...

Crystallographic data analyses indicate that three types of prolinium cations, along with two types of hydrogen bonding, produce and stabilize the helical structure of triprolinium 12-phosphomolybdate. There are similarities between this organic-inorganic compound and peptides/proteins. The stronger “conventional” hydrogen bonds and the less common C-H…O attractions play critical roles in gener...

?-Aryl-?-diazoamides were synthesized in two steps under mild conditions. This expeditious route employs Pd-catalyzed C–H arylation of N-succinimidyl 2-diazoacetate to obtain 2-aryl-2-diazoacetates, followed by aminolysis. The ensuing diazo compounds can esterify carboxyl groups aqueous solution, and the ester products are substrates for an esterase. broad scope synthetic enables continued deve...