نتایج جستجو برای: photolysis
تعداد نتایج: 4380 فیلتر نتایج به سال:
Photolysis of ethyl diazomalonyl trypsin and of ethyl diazomalonyl chymotrypsin, followed by hydrolysis, yields several products. One of the major products has now been identified as S-carboxymethylcysteine. Since neither trypsin nor chymotrypsin contains an -SH bond, the reaction must involve cleavage of a disulfide bond by the carbene generated on photolysis. The products so far identzed from...
Rapid, localised photolytic release of neurotransmitters from caged precursors at synaptic regions in the extracellular space is greatly hampered at irradiation wavelengths in the near-UV, close to the wavelength of maximum absorption of the caged precursor, because of inner-filtering by strong absorption of light in the cage solution between the objective and cell. For this reason two-photon e...
Tandem systems allowing enhanced two-photon (2P) absorption in a wavelength range permitting coupling of the primary excitation by energy transfer to an intramolecular cage known to have fragmentation properties suited to photolysis in neuroscience is demonstrated to lead to a 10-fold improvement in the 2P photolysis cross-section at experimentally compatible wavelengths.
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