Mulcahy, M,McInerney, J,Nikogosyan, DN,Gorner, H;

2000

December

Chemistry (Weinheim An Der Bergstrasse, Germany)

193 nm photolysis of aromatic and aliphatic dipeptides in aqueous solution: Dependence of decomposition quantum yield an the amino acid sequence

Validated

()

laser peptide bond photorefractive keratectomy scission PHOTOINDUCED ELECTRON-TRANSFER PEPTIDES PHOTOCHEMISTRY TRYPTOPHAN TRIPEPTIDES COLLAGEN

381

1259

1262

The values of molar absorption coefficient and quantum yields of photodecomposition and peptide bond scission were determined far a number of aromatic and aliphatic dipeptides under 193 nm laser irradiation in neutral argon-saturated aqueous solution. Under these conditions we could show that no dependence of the dipeptide decomposition quantum yield on the sequence of amino acid residues exists, neither for aromatic dipeptides nor for aliphatic ones.