[Fluorescense enhancing of 5, 10, 15, 20-tetraphenylporphyrin in complex with human serum albumin and gold nanorods].

Using absorption and fluorescence spectroscopy methods we obtained the results demonstrating alterations in spectral characteristics in supramolecular system composed of gold nanorods (AuNR) (10 x 38 nm) and complexes of human serum albumin (HSA) and 5, 10, 15, 20-tetraphenylporphyrin (TPP). TPP fluorescence (max = 636 and 658 nm) was found to enhance. The dependence of fluorescence enhancing in time was of nonlinear nature.

meso-(1S*,21R*)-25-Methyl-8,11,14-trioxa-22,24,25-triaza-tetra-cyclo-[19.3.1.0(2,7).0(15,20)]penta-cosa-2,4,6,15(20),16,18-hexa-ene-23-thione chloro-form monosolvate.

The title compound crystallizes as a chloro-form solvate, C(20)H(23)N(3)O(3)S·CHCl(3), with two crystallographically independent units. The independent units have distinctly different inter-action patterns between the aza-crown macrocycle and the chloro-form solvent mol-ecule. In one of them, the chloro-form mol-ecule forms C-H⋯N and Cl⋯H-C hydrogen bonds with the aza-crown macrocycle (as a proton donor and an acceptor, respectively), whereas in the other, one of the chloro-form mol-ecules is bound to the aza-crown macrocycle by an attractive Cl⋯O [3.