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Internal Structure Of Thermoresponsive Physically Crosslinked Nanogel Of Polyn2hydroxypropylmethacrylamideblockpolyn22difluoroethylacrylamide Prominent 19f Mri Tracer 11th Edition David Babuka

  • SKU: BELL-48612842
Internal Structure Of Thermoresponsive Physically Crosslinked Nanogel Of Polyn2hydroxypropylmethacrylamideblockpolyn22difluoroethylacrylamide Prominent 19f Mri Tracer 11th Edition David Babuka
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Internal Structure Of Thermoresponsive Physically Crosslinked Nanogel Of Polyn2hydroxypropylmethacrylamideblockpolyn22difluoroethylacrylamide Prominent 19f Mri Tracer 11th Edition David Babuka instant download after payment.

Publisher: MDPI
File Extension: PDF
File size: 4.54 MB
Pages: 17
Author: David Babuka, Kristyna Kolouchova, Ondrej Groborz, Zdenek Tosner, Alexander Zhigunov, Petr Stepanek, Martin Hruby
Language: English
Year: 2020
Edition: 11
Volume: 10

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Internal Structure Of Thermoresponsive Physically Crosslinked Nanogel Of Polyn2hydroxypropylmethacrylamideblockpolyn22difluoroethylacrylamide Prominent 19f Mri Tracer 11th Edition David Babuka by David Babuka, Kristyna Kolouchova, Ondrej Groborz, Zdenek Tosner, Alexander Zhigunov, Petr Stepanek, Martin Hruby instant download after payment.

Nanomaterials 2020, 10(11), 2231; 10.3390/nano10112231
Fluorine-19 MRI is a promising noninvasive diagnostic method. However, the absence of a nontoxic fluorine-19 MRI tracer that does not suffer from poor biodistribution as a result of its strong fluorophilicity is a constant hurdle in the widespread applicability of this otherwise versatile diagnostic technique. The poly[N-(2-hydroxypropyl)methacrylamide]-block-poly[N-(2,2-difluoroethyl)acrylamide] thermoresponsive copolymer was proposed as an alternative fluorine-19 MRI tracer capable of overcoming such shortcomings. In this paper, the internal structure of self-assembled particles of this copolymer was investigated by various methods including 1D and 2D NMR, dynamic light scattering (DLS), small-angle X-ray scattering (SAXS) and small-angle neutron scattering (SANS). The elucidated structure appears to be that of a nanogel with greatly swollen hydrophilic chains and tightly packed thermoresponsive chains forming a network within the nanogel particles, which become more hydrophobic with increasing temperature. Its capacity to provide a measurable fluorine-19 NMR signal in its aggregated state at human body temperature was also investigated and confirmed. This capacity stems from the different fluorine-19 nuclei relaxation properties compared to those of hydrogen-1 nuclei.

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