Cu2+ Triggered Shrinkage of a Natural Betulin-Derived Supramolecular Gel to Fabricate Moldable Self-Supporting Gel

2021 ◽  
Author(s):  
Jin Guo Liu ◽  
Feng Yin ◽  
Jun Hu ◽  
Yong Ju
Keyword(s):  
Supramolecular Gel ◽  
Polymeric Gels ◽  
Supramolecular Gels

Most supramolecular gels have poor ability to be molded into well-defined shapes, preventing them from having the same potential as clay-based and polymeric gels in applications. In this research, a...

Functional supramolecular gels based on pillar[n]arene macrocycles

Nanoscale ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 2180-2200 ◽  
Author(s):  
Yong-Fu Li ◽  
Zheng Li ◽  
Qi Lin ◽  
Ying-Wei Yang
Keyword(s):  
Supramolecular Gel ◽  
Supramolecular Gels ◽  
Recent Developments

Recent developments of functional supramolecular gel materials constructed from pillararenes have been overviewed.

Photoresponsive supramolecular gels based on amphiphiles with azobenzene and maltose or polyethyleneglycol polar head

2015 ◽  
Vol 39 (5) ◽  
pp. 4009-4019 ◽  
Author(s):  
María José Clemente ◽  
Rosa María Tejedor ◽  
Pilar Romero ◽  
Juliette Fitremann ◽  
Luis Oriol
Keyword(s):  
External Stimulus ◽  
Gel Structure ◽  
Supramolecular Gel ◽  
Polar Head ◽  
Supramolecular Gels ◽  
Reversible Gel

Photoresponsive supramolecular gelators have been synthesized using PEG or d-maltose as polar head. Incorporation of azobenzene photoresponsive moieties allows controlling the supramolecular gel structure, including a reversible gel–sol transition using light as external stimulus.

scholarly journals Annealing multicomponent supramolecular gels

Nanoscale ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 3275-3280 ◽  
Author(s):  
Ana M. Fuentes-Caparrós ◽  
Francisco de Paula Gómez-Franco ◽  
Bart Dietrich ◽  
Claire Wilson ◽  
Christopher Brasnett ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Supramolecular Gel ◽  
Two Component ◽  
Supramolecular Gels

Annealing in a two-component supramolecular gel leads to a self-sorted network, which has significantly different mechanical properties to the as-prepared gels.

scholarly journals Responsive aggregation-induced emissive supramolecular gels based on bis-cyanostilbene derivatives

2016 ◽  
Vol 4 (46) ◽  
pp. 10786-10790 ◽  
Author(s):  
Yao Ma ◽  
Massimo Cametti ◽  
Zoran Džolić ◽  
Shimei Jiang
Keyword(s):  
Supramolecular Gel ◽  
Supramolecular Gels

A novel π-conjugated AIE supramolecular gel reversibly responds to light and, selectively, to TFA vapor through a gel-to-sol transformation.

A crown-ether-based moldable supramolecular gel with unusual mechanical properties and controllable electrical conductivity prepared by cation-mediated cross-linking

2018 ◽  
Vol 9 (28) ◽  
pp. 3900-3907 ◽  
Author(s):  
Jaehyeon Park ◽  
Ka Young Kim ◽  
Chaelin Kim ◽  
Ji Ha Lee ◽  
Ju Hyun Kim ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Electrical Conductivity ◽  
Crown Ether ◽  
Cross Linking ◽  
Supramolecular Gel ◽  
Supramolecular Gels

Supramolecular gels that possess high mechanical properties and unusual electrical conductivity were prepared by incorporating Cs+.

Supramolecular gels and mesoscopic structure

2018 ◽  
Vol 32 (18) ◽  
pp. 1840015 ◽  
Author(s):  
Nai-Bo Lin ◽  
You-Hui Lin ◽  
Qiao-Ling Huang ◽  
Xiang-Yang Liu
Keyword(s):  
Electron Microscope ◽  
Small Angle ◽  
Optical Microscope ◽  
Crystal Nucleation ◽  
Resonance Spectroscopy ◽  
X Ray ◽  
Supramolecular Gel ◽  
Crystal Network ◽  
Supramolecular Gels ◽  
And Performance

From the perspective of mesoscale, the formation mechanism of crystal network structure of supramolecular gel, the influence of structure on macroscopic properties, and the design and control of supramolecular gels are reviewed. Crystal network is a key character of the hierarchical structure of the gel, the formations of the basic and multi-level crystal networks are based on the crystal nucleation and growth. The engineering and controlling of the gel structure can be implemented by various stimuli, such as additives, sonication, seeding and thermodynamic driving force, which leads to a controllable performance of the gel. In addition, the methods of characterizing supramolecular gels are systematically summarized, such as rheology, atomic force microscope, scanning tunnel microscope, scanning electron microscope, transmission electron microscope, polarizing optical microscope, X-ray diffraction (XRD), small-angle X-ray scattering, small angle neutron scattering, nuclear magnetic resonance spectroscopy, dynamic light scattering (DLS), etc. Supramolecular gel performance is determined by the hierarchy mesoscopic structures, which can significantly improve the properties of the material. Four factors can be correlated to the structure and performance of material: topology, correlation length, symmetry/ordering and strength of association of crystal networks. According to the more in-depth understanding of mesoscopic supramolecular gels, the research and development of such a material will be pushed to a new stage.

scholarly journals Supramolecular Gel as the Template for Catalysis, Inorganic Superstructure, and Pharmaceutical Crystallization

2019 ◽  
Vol 20 (3) ◽  
pp. 781 ◽  
Author(s):  
Arnab Dawn
Keyword(s):  
Molecular Level ◽  
Soft Template ◽  
Template Effect ◽  
Photochemical Process ◽  
Supramolecular Gel ◽  
Drug Molecules ◽  
Supramolecular Gels ◽  
Functional Output

A supramolecular gel is a fascinating combination of flexibility and orderliness. While the supramolecular nature of crosslinking contributes towards the adaptivity and the reversibility of the system, orderliness at the molecular level amplifies the functional output and induces extraordinary selectivity into the system. Therefore, use of supramolecular gels as the soft template is an emerging area of research, which includes but not limited to catalysis of a chemical or a photochemical process, transcription of gel property to a substrate, or even controlling the nucleation of drug molecules. This review aims to highlight the template effect of supramolecular gels in the above-mentioned areas relevant to novel fundamental chemistry, technology, and healthcare.

scholarly journals New frontiers in hybrid materials: noble metal nanoparticles – supramolecular gel systems

2014 ◽  
Vol 50 (61) ◽  
pp. 8273-8286 ◽  
Author(s):  
Massimo Cametti ◽  
Zoran Džolić
Keyword(s):  
Metal Nanoparticles ◽  
Noble Metal ◽  
Hybrid Materials ◽  
Noble Metal Nanoparticles ◽  
Supramolecular Gel ◽  
Supramolecular Gels ◽  
Recent Developments ◽  
Potential Applications

Recent developments in hybrid materials composed of noble metal nanoparticles and supramolecular gels are reviewed, with particular emphasis on synthetic procedures, characterization and potential applications.

Synthesis of gold nanoparticles and nanoclusters in a supramolecular gel and their applications in catalytic reduction of p-nitrophenol to p-aminophenol and Hg(ii) sensing

RSC Advances ◽  
2014 ◽  
Vol 4 (85) ◽  
pp. 45449-45457 ◽  
Author(s):  
Dhurjati Prasad Kumar
Keyword(s):  
Gold Nanoparticles ◽  
Au Nanoparticles ◽  
Catalytic Reduction ◽  
Au Nanoparticle ◽  
Au Nanoclusters ◽  
Supramolecular Gel ◽  
Supramolecular Gels

Seven gelator molecules giving supramolecular gels produced Au-nanoparticles and fluorescent, small Au-nanoclusters. Such Au-nanoparticle containing gels catalyzed the reduction of p-nitrophenol to p-aminophenol without NaBH4. The fluorescent Au-nanoclusters acted as a Hg(ii) sensor.

Synthesis of supramolecular gels based on electron-transfer reactions between clay nanotubes and styrene

2019 ◽  
Vol 55 (72) ◽  
pp. 10756-10759 ◽  
Author(s):  
Jingqi Zheng ◽  
Xianfeng Ou ◽  
Fan Wu ◽  
Mingxian Liu
Keyword(s):  
Electron Transfer ◽  
Halloysite Nanotubes ◽  
Ultrasound Treatment ◽  
Transfer Reactions ◽  
Electron Transfer Reactions ◽  
Supramolecular Gel ◽  
Supramolecular Gels ◽  
Clay Nanotubes

A novel supramolecular gel is synthesized using styrene and halloysite nanotubes under ultrasound treatment, in which the nanotubes act as gelators for the styrene gel.

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