High Fluorescent Porphyrin-PAMAM-Fluorene Dendrimers
نویسندگان
چکیده
منابع مشابه
High Fluorescent Porphyrin-PAMAM-Fluorene Dendrimers.
Two new classes of dendrimers bearing 8 and 32 fluorene donor groups have been synthesized. The first and second generations of these porphyrin-PAMAM-fluorene dendrimers were characterized by 1H-NMR, 13C-NMR, FTIR, UV-vis spectroscopy, elemental analyses and MALDI-TOF mass spectrometry. The UV-vis spectra showed that the individual properties of donor and acceptor moieties were preserved, indic...
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Dendrimers are a relatively new class of polymer, with well-defined molecular structures. They are synthesized from a polyfunctional core by adding branched monomers that react with the functional groups of the core, in turn leaving end groups that can react again. This results in a large number of reactive terminal groups that increases after each cycle or " generation ". The structure of a gi...
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The structure and dynamics of poly(amido amide) (PAMAM) dendrimers have been of great interest both scientifically and industrially, but such important features as the distributions of atoms, channels, and strain inside these molecules remain unresolved. This paper reports results from systematic investigations of the atomistic structure of ethylenediamine (EDA) cored PAMAM dendrimer up through...
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Porphyrin-fluorene conjugates bridged by ethynylene were synthesized through Pd-catalyzed cross-coupling reaction. These molecules showed strong nonlinear absorption when measured using a nanosecond Z-scan method. The largest effective two-photon absorption cross-section was observed for trisporphyrin as 2.7 × 105 GM at 760 nm, which was 10 times larger than that obtained for monoporphyrin. INT...
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Polycationic dendrimer-based gene transfer is one of the most important biological applications of dendrimers, which involves electrostatic interactions between the positively charged dendrimer end groups and the negatively charged phosphate groups in DNA. Such features could also be used to bind biologically important RNA molecules, which are emerging as both important therapeutic targets and ...
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ژورنال
عنوان ژورنال: Molecules
سال: 2015
ISSN: 1420-3049
DOI: 10.3390/molecules20058548