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  Exotic nuclear spin behavior in dendritic macromolecules

Saul, P., Yang, S., Mamone, S., Opazo, F., Meyer, A., Rizzoli, S. O., et al. (2021). Exotic nuclear spin behavior in dendritic macromolecules. Physical Chemistry Chemical Physics, 23(46), 26349-26355. doi:10.1039/D1CP04483D.

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Saul, P.1, Author              
Yang, S.1, Author              
Mamone, S.1, Author              
Opazo, F., Author
Meyer, A.2, Author              
Rizzoli, S. O., Author
Glöggler, S.1, Author              
Affiliations:
1Research Group of NMR Signal Enhancement, MPI for Biophysical Chemistry, Max Planck Society, ou_2396691              
2Research Group of Electron Paramagnetic Resonance, MPI for Biophysical Chemistry, Max Planck Society, ou_578606              

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 Abstract: Dendrimers are a class of branched, highly symmetric macromolecules that have been shown to be useful for a vast number of different applications. Potential uses as fluorescence sensors, in catalysis and perhaps most importantly in medical applications as drug delivery systems or cytotoxica have been proposed. Herein we report on an exotic behaviour of the nuclear spins in a dendritic macromolecule in the presence of different paramagnetic ions. We show that the stability of the long lived nuclear singlet state, is affected by the presence of Cu(II), whereas other ions did not have any influence at all. This effect could not be observed in the case of a simple tripeptide, in which the nuclear singlet stability was influenced by all investigated paramagnetic ions, a potentially useful effect in the development of Cu(II) selective probes. By adding a fluorescent marker to our molecule we could show that the nuclear singlet multimer (NUSIMER) is taken up by living cells. Furthermore we were able to show that nuclear singlet state NMR can be used to investigate the NUSIMER in the presence of living cells, showing that an application in in vivo NMR can be feasible

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Language(s): eng - English
 Dates: 2021-11-122021-12-14
 Publication Status: Published in print
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1039/D1CP04483D
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Title: Physical Chemistry Chemical Physics
Source Genre: Journal
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Pages: - Volume / Issue: 23 (46) Sequence Number: - Start / End Page: 26349 - 26355 Identifier: ISSN: 1463-9076
ISSN: 1463-9084