A “keto–enol tautomerization”-based response mechanism: a novel approach to stimuli-responsive supramolecular gel

2015 ◽  
Vol 51 (61) ◽  
pp. 12224-12227 ◽  
Author(s):  
Qi Lin ◽  
Tao-Tao Lu ◽  
Jin-Chao Lou ◽  
Gui-Yuan Wu ◽  
Tai-Bao Wei ◽  
...  
Keyword(s):  
Sol Gel ◽  
Stimuli Responsive ◽  
Response Mechanism ◽  
Aggregation Induced Emission ◽  
Supramolecular Gel ◽  
Dual Channel ◽  
Novel Approach ◽  
Specific Selectivity ◽  
Sol Gel Transition ◽  
Gel Transition

By “keto–enol tautomerization”, gelator G3 can be self-assembled into a stable organogel (OG3) accompanied by strong aggregation induced emission (AIE). OG3 could dual-channel sense S2− with specific selectivity via reversible sol–gel transition and fluorescent changes.

Photo Gel-Sol/Sol-Gel Transition and Its Patterning of a Supramolecular Hydrogel as Stimuli-Responsive Biomaterials

2008 ◽  
Vol 14 (13) ◽  
pp. 3977-3986 ◽  
Author(s):  
Shinji Matsumoto ◽  
Satoshi Yamaguchi ◽  
Shiori Ueno ◽  
Harunobu Komatsu ◽  
Masato Ikeda ◽  
...  
Keyword(s):  
Sol Gel ◽  
Stimuli Responsive ◽  
Supramolecular Hydrogel ◽  
Sol Gel Transition ◽  
Gel Transition

Fabrication of multi-stimuli responsive supramolecular hydrogels based on host–guest inclusion complexation of a tadpole-shaped cyclodextrin derivative with the azobenzene dimer

2017 ◽  
Vol 8 (26) ◽  
pp. 3901-3909 ◽  
Author(s):  
Xing Wang ◽  
Juan Wang ◽  
Yanyu Yang ◽  
Fei Yang ◽  
Decheng Wu
Keyword(s):  
Sol Gel ◽  
Inclusion Complexation ◽  
Stimuli Responsive ◽  
Cyclodextrin Derivative ◽  
Sol Gel Transition ◽  
Gel Transition

Multi-responsive supramolecular hydrogels, based on host–guest complexation of tadpole-shaped cyclodextrin with the azobenzene dimer, possess reversible sol–gel transition behaviors and better biocompatibility.

Novel Anion-Tuning Supramolecular Gels with Dual-Channel Response: Reversible Sol−Gel Transition and Color Changes

Langmuir ◽  
2010 ◽  
Vol 26 (11) ◽  
pp. 9040-9044 ◽  
Author(s):  
Jia-Wei Liu ◽  
Yong Yang ◽  
Chuan-Feng Chen ◽  
Jian-Tai Ma
Keyword(s):  
Sol Gel ◽  
Channel Response ◽  
Color Changes ◽  
Dual Channel ◽  
Supramolecular Gels ◽  
Sol Gel Transition ◽  
Gel Transition

Convenient one-step approach based on stimuli-responsive sol-gel transition properties to directly build chitosan-alginate core-shell beads

2019 ◽  
Vol 87 ◽  
pp. 253-259 ◽  
Author(s):  
Chaoran Qin ◽  
Jing Zhou ◽  
Zheng Zhang ◽  
Wei Chen ◽  
Qian Hu ◽  
...  
Keyword(s):  
Sol Gel ◽  
Core Shell ◽  
Stimuli Responsive ◽  
One Step ◽  
Shell Beads ◽  
Sol Gel Transition ◽  
Gel Transition

Biomolecularly stimuli-responsive tetra-poly(ethylene glycol) that undergoes sol–gel transition in response to a target biomolecule

2017 ◽  
Vol 8 (41) ◽  
pp. 6378-6385 ◽  
Author(s):  
Chisa Norioka ◽  
Kazuma Okita ◽  
Miho Mukada ◽  
Akifumi Kawamura ◽  
Takashi Miyata
Keyword(s):  
Phase Transition ◽  
Ethylene Glycol ◽  
Sol Gel ◽  
Stimuli Responsive ◽  
Poly Ethylene Glycol ◽  
Stimuli Responsive Polymers ◽  
Responsive Polymers ◽  
Sol Gel Transition ◽  
Poly Ethylene ◽  
Gel Transition

We designed biotin-conjugated four-armed poly(ethylene glycol) (biotinylated Tetra-PEG) as biomolecularly stimuli-responsive polymers that underwent the phase transition from a sol to a gel state in response to avidin as a target biomolecule.

scholarly journals Pyrene-Based Co-Assembled Supramolecular Gel; Morphology Changes and Macroscale Mechanical Property

Gels ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 16
Author(s):  
Ka Young Kim ◽  
Mirae Ok ◽  
Jaehyeong Kim ◽  
Sung Ho Jung ◽  
Moo Lyong Seo ◽  
...  
Keyword(s):  
Sol Gel ◽  
Three Dimensional ◽  
Inversion Method ◽  
Supramolecular Gel ◽  
Molar Ratios ◽  
Dimensional Network ◽  
Supramolecular Gels ◽  
Pyrene Derivatives ◽  
Sol Gel Transition ◽  
Gel Transition

Two pyrene derivatives having the perylenediimide (1) or the alky chain (2) in the middle of molecules were synthesized. Co-assembled supramolecular gels were prepared at different molar ratios of 0.2, 0.5, and 0.8 equiv. of 2 to 1. By SEM observation, the morphology of co-assembled supramolecular gels changed from spherical nanoparticles to three-dimensional network nanofibers as the ratio of 2 increased. In addition, the pyrene-excimer emission of co-assembled gels increased with increasing concentration of 2, and was stronger when compared with the condition without 1 or 2, indicating the formation of pyrene interaction between 1 and 2. In addition, the sol-gel transition was found to be reversible over repeated measurement by tube inversion method. The rheological properties of co-assembled supramolecular gels were also improved by increasing the ratio of 2, due to the increased nanoscale flexibility of supramolecular packing by introducing alkyl chain groups through heterogeneous pyrene interaction. These findings suggest that macroscale mechanical strength of co-assembled supramolecular gel was strongly influenced by nanoscale flexibility of the supramolecular packing.

Sol-gel transition in silica alkaline solutions. A NMR study

1994 ◽  
Vol 91 ◽  
pp. 901-908 ◽  
Author(s):  
H Zanni ◽  
P Nieto ◽  
L Fernandez ◽  
R Couty ◽  
P Barret ◽  
...  
Keyword(s):  
Sol Gel ◽  
Alkaline Solutions ◽  
Nmr Study ◽  
Sol Gel Transition ◽  
Gel Transition

scholarly journals Synthesis of Nanogels: Current Trends and Future Outlook

Gels ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 36
Author(s):  
Emanuele Mauri ◽  
Sara Maria Giannitelli ◽  
Marcella Trombetta ◽  
Alberto Rainer
Keyword(s):  
3D Printing ◽  
Ad Hoc ◽  
Sol Gel ◽  
Controlled Polymerization ◽  
Current Trends ◽  
Chip Technology ◽  
Physico Chemical ◽  
Physical Interactions ◽  
Sol Gel Transition ◽  
Gel Transition

Nanogels represent an innovative platform for tunable drug release and targeted therapy in several biomedical applications, ranging from cancer to neurological disorders. The design of these nanocarriers is a pivotal topic investigated by the researchers over the years, with the aim to optimize the procedures and provide advanced nanomaterials. Chemical reactions, physical interactions and the developments of engineered devices are the three main areas explored to overcome the shortcomings of the traditional nanofabrication approaches. This review proposes a focus on the current techniques used in nanogel design, highlighting the upgrades in physico-chemical methodologies, microfluidics and 3D printing. Polymers and biomolecules can be combined to produce ad hoc nanonetworks according to the final curative aims, preserving the criteria of biocompatibility and biodegradability. Controlled polymerization, interfacial reactions, sol-gel transition, manipulation of the fluids at the nanoscale, lab-on-a-chip technology and 3D printing are the leading strategies to lean on in the next future and offer new solutions to the critical healthcare scenarios.

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