These oscillations seem to emanate from coherence at the vibrational ground states of the photoproduct
Reagentas 6-4 photoproduct
determination after UV-irradiation preliminary points to 1 Coll .
Different results were obtained by absorption spectroscopy where the photoproduct
had a residual absorbance (Figure 1a).
During holographic recording, PQ reaches its excited state through electron transfer and then reacts with the MMA monomer to form the photoproduct
in the region exposed to light (8), (9), (32).
6,63) The ultimate effect of blocking normal cutaneous photoproduct
synthesis with sunblock is not known.
In this study, we investigated the photobleaching of pyropheophorbide methyl ester (PPME) and pyropheophorbide a (PPa) in a homogeneous solution of dimethylformamide (DMF) during PDT and estimated whether fluorescence photobleaching of the sensitizer or the formation of its photoproduct
is appropriate for evaluating PDT dose.
9) After UVA light exposure, the DNA will play the role of a chromophore leading to a photoproduct
Higher cyclobutane pyrimidine dimer and (6-4) photoproduct
yields in epidermis of normal humans with increased sensitivity to ultraviolet B radiation.
with wavelength shorter than 280 nm is the primary wavelength for induction of RecA protein, a photoproduct
involved in DNA damage repair.
This would be the case if erythrosine B reacted with the photoproduct
resulting from the relaxation of the triplet state.
UVB (290-320 nm) is known to induce direct damage to DNA via formation of the cyclobutane pyrimidine dimer (CPD) photoproduct
(Lyons et al.
Our investigations showed that the stimulatory effect of heating on the generation of these ROS may be attributed to an increase in the formation of a chlorin-type photoproduct
, acting as a PS.