Abstract：
:The growing attention to the luminescent nanocarriers is strongly stimulated by their potential application as drug delivery systems and by the necessity to monitor their distribution in cells and tissues. In this communication we report on the synthesis of amphiphilic polypeptides bearing C-terminal phosphorescent label together with preparation of nanoparticles using the polypeptides obtained. The approach suggested is based on a unique and highly technological process where the new phosphorescent Pt-cysteine complex serves as initiator of the ring-opening polymerization of α-amino acid N-carboxyanhydrides to obtain the polypeptides bearing intact the platinum chromophore covalently bound to the polymer chain. It was established that the luminescent label retains unchanged its emission characteristics not only in the polypeptides but also in more complicated nanoaggregates such as the polymer derived amphiphilic block-copolymers and self-assembled nanoparticles. The phosphorescent nanoparticles display no cytotoxicity and hemolytic activity in the tested range of concentrations and easily internalize into living cells that makes possible in vivo cell visualization, including prospective application in time resolved imaging and drug delivery monitoring.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Vlakh EG,Grachova EV,Zhukovsky DD,Hubina AV,Mikhailova AS,Shakirova JR,Sharoyko VV,Tunik SP,Tennikova TBdoi
10.1038/srep41991subject
Has Abstractpub_date
2017-02-03 00:00:00pages
41991issn
2045-2322pii
srep41991journal_volume
7pub_type
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