Tunable dynamic hydrophobic attachment of guest molecules in amphiphilic core–shell polymers
Tunable dynamic hydrophobic attachment of guest molecules in amphiphilic core–shell polymers
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两亲性核壳聚合物中客体分子的可调节动态疏水附着
DOI:
10.1039/c6py01335j
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发表时间:
2016
影响因子:
4.6
通讯作者:
Dariush Hinderberger
中科院分区:
文献类型:
--
作者:
Jörg Reichenwallner;Anja Thomas;Lutz Nuhn;Tobias Johann;Annette Meister;Holger Frey;Dariush Hinderberger
In this study, synthesis and dynamic properties of amphiphilic core–shell polymers are reported as monitored through their interaction with small amphiphilic molecules. Brush-like structures are formed with a hydrophobic core surrounded by a hydrophilic shell utilizing controlled radical addition–fragmentation chain transfer (RAFT) polymerization of macromonomers consisting of linear polyglycerol chains attached to alkylene methacrylate. Continuous wave electron paramagnetic resonance (CW EPR) spectroscopy is employed to study how the amphiphilic, paramagnetic spin probe 16-DSA (16-doxyl stearic acid) interacts with polymers of different alkylene chain lengths in their hydrophobic cores and different polyglycerol chain lengths in their hydrophilic shells. The spin probe exhibits dynamic hydrophobic attachment to the polymers and reveals an indirect, dynamics-based view of polymer effects such as temperature response, aggregation and ligand binding properties. Increasing the hydrophobic alkylene chain length in the polymers alters the physical properties of the core region significantly. A large set of controllable functional polymer properties can be adjusted by the degree of polymerization and alkylene spacer length. Partial aggregation of the polymers further modifies the binding properties. Applying dynamic light scattering (DLS), transmission electron microscopy (TEM) and molecular dynamic (MD) simulations, the complex dynamic behavior found with EPR spectroscopy was further complemented and verified.
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DOI:
10.1016/s0005-2728(00)00106-7
发表时间:
2000
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Heinz;A. Savitsky;C. Wegener;Matthias Pfeiffer;M. Plato;K. Möbius
通讯作者:
K. Möbius
影响因子:
4.6
作者:
Youssef Bakkour;V. Darcos;Fanny Coumes;Suming Li;J. Coudane
通讯作者:
Youssef Bakkour;V. Darcos;Fanny Coumes;Suming Li;J. Coudane
DOI:
--
发表时间:
1992
期刊:
Protein Engineering
影响因子:
--
作者:
I. Tuñón;E. Silla;J. Pascual
通讯作者:
J. Pascual
影响因子:
3.2
作者:
Ma, Yun;Loyns, Colin;Chechik, Victor
通讯作者:
Chechik, Victor
DOI:
--
发表时间:
1972
期刊:
影响因子:
--
作者:
S. Goldman;G. V. Bruno;C. Polnaszek;J. Freed
通讯作者:
J. Freed