Interactions in noncovalent PAMAM/TMPyP systems studied by fluorescence spectroscopy

Article Abstract:

The complexation of tetrakis(4-N-methylpyridinium)porphine (TMPyP) with carboxyl-terminated poly(amidoamine) (PAMAM) dendrimers is studied. Steady-state absorption and emission spectroscopy and time-resolved fluorescence measurements are employed to study the noncovalent interactions of TMPyP with oppositely charged half-generation PAMAM in water.

Spectra, Structure

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Early aggregation in prion peptide nanostructures investigated by nonlinear and ultrafast time-resolved fluorescence spectroscopy

Article Abstract:

The early aggregates are characterized in the self-assembly of prion peptides by using nonlinear and ultrafast time-resolved fluorescence spectroscopy. Ultrafast fluorescence decays have shown the possibility of utilizing the fluorescence upconversion method to characterize the [beta]-sheet aggregates and their growth.

Peptides

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Molecular dynamics simulations of charged dendrimers: low-to-intermediate half-generation PAMAMs

Article Abstract:

Atomistic molecular dynamics simulations are used to study the poly(amido)amine (PAMAM) dendrimers of generations 0.5, 1.5, 2.5, 3.5 and 4.5. The results have agreed with previously established morphological transition of PAMAM dendrimers toward a more spherical and compact conformation above generations 3 or 4.

Usage, Electric properties, Molecular dynamics, Amines

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