pH modulation of porphyrins self-assembly onto polylysine
Article Abstract:
The fluorescence of porphyrins is altered by modulating the interactions between the anionic porphyrins and the protonated polylysine through the pH values. The tetraionic meso-tetrakis(4-sulfonatophenyl)porphine (H2TPPS) exists in monomeric form and its fluorescence is not pH-dependent. However, the addition of polylysine, self-aggregation in H2TPPS has been observed. Also, there is a modification in the intensity of the fluorescence versus the pH behavior showing a sigmoidal profile.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Structure and dynamics of lysozyme encapsulated in a silica sol-gel matrix
Article Abstract:
The structure and the dynamics of the model protein hen egg white lysozyme (HEWL) encapsulated in silica sol-gel matrices with enhanced stability are reported. The proteins are found to retain their native structure and functionality.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2007
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