End-group distributions of multiple generations of spin-labeled PAMAM dendrimers.

ABSTRACT: Dendrimers are attractive templates to display functional molecular components. Since the behavior of dendrimer systems can depend greatly on the accessibility of these molecular components to the external environment, and on the spatial arrangement of functional groups attached to the dendrimer terminal branches (end-groups), techniques to determine the locations of end-groups are highly desirable. In this report, we describe a method to analyze the EPR spectra of multiple generations of poly(amidoamine) (PAMAM) dendrimers which have spin-labels attached to end-groups in variable percentages of the total number of available sites. The spectra are treated as a convolution of a narrow spin-label spectrum and a variable line broadening function. Trends in the parameters that describe the bes

SUBMITTER: Sebby KB 

PROVIDER: S-EPMC3424105 | biostudies-literature | 2011 Apr

REPOSITORIES: biostudies-literature