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Controlled Cross-linking Strategy for Formation of Hydrogels, Microgels and Nanogels
Qing-Chen Caoa - Personal Name
Xing Wang - Personal Name
De-Cheng Wu - Personal Name
Hydrogels are a kind of unique cross-linking polymeric materials with three-dimensional networks. Various efforts have been
devoted to manipulate the formation of functional hydrogels in situ and enrich the production of hydrogels, microgels and nanogels with
improved modulation capacity. However, these methods always fail to tune the gel properties because of the difficulty in achieving the
precise control of cross-linking extents once the gel formation is initiated. Therefore, the preparation of tailor-made hydrogels remains a
great challenge. Herein, we summarize a controlled cross-linking strategy towards not only fabrication of hydrogels at nano-, micro- and
macro-scales, but also achievement of controlled assembly of nanoparticles into multifunctional materials in macroscopic and microscopic
scales. The strategy is conducted by controllably activating and terminating the disulfide reshuffling reactions of disulfide-linked core/shell
materials with selective core/shell separation using system pH or UV triggers. So it provides a facile approach to producing hydrogels,
hydrogel particles and nanoparticle aggregates with tunable structures and properties, opening up the design possibility, flexibility and
complexity of hydrogels, microgels/nanogels and nanoparticle aggregates from nanoscopic components to macroscopic objects.
devoted to manipulate the formation of functional hydrogels in situ and enrich the production of hydrogels, microgels and nanogels with
improved modulation capacity. However, these methods always fail to tune the gel properties because of the difficulty in achieving the
precise control of cross-linking extents once the gel formation is initiated. Therefore, the preparation of tailor-made hydrogels remains a
great challenge. Herein, we summarize a controlled cross-linking strategy towards not only fabrication of hydrogels at nano-, micro- and
macro-scales, but also achievement of controlled assembly of nanoparticles into multifunctional materials in macroscopic and microscopic
scales. The strategy is conducted by controllably activating and terminating the disulfide reshuffling reactions of disulfide-linked core/shell
materials with selective core/shell separation using system pH or UV triggers. So it provides a facile approach to producing hydrogels,
hydrogel particles and nanoparticle aggregates with tunable structures and properties, opening up the design possibility, flexibility and
complexity of hydrogels, microgels/nanogels and nanoparticle aggregates from nanoscopic components to macroscopic objects.
Availability
| EB00000002810K | Available |
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Content Type
E-Jurnal
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Subject(s)
Biodegradation
Thiol-disulfide exchange
Controlled cross-linking
Hybrid hydrogels
Hydrogel particles
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