Pentaerythrityl tetra-β-cyclodextrin: Synthesis, characterization and application in multiple responses hydrogel

Hu, Xuze; Zou, Changjun

doi:10.1016/j.colsurfa.2017.06.023

Cited by 10 publications

(5 citation statements)

References 44 publications

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“…The peaks of 1.22-1.42 ppm, 1.88 ppm, 3.82 ppm and 4.23 ppm were identified as methylene. [26][27][28][29] The peaks of 4.45-4.97 ppm were assigned to the À OH, [30,31] and signal of À COÀ NHÀ was found at 7.63 ppm. [32]…”

Section: Materials Characterizationmentioning

confidence: 99%

Highly Flexible and Self‐Healing Supercapacitor Enabled by Physically Crosslinking Polymer Hydrogel Electrolyte

Hua,

Xin,

Lin

et al. 2023

Chemistry A European J

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Preparation of flexible supercapacitors with excellent mechanical properties and self‐healing properties is of great significance but still remains a challenge. A self‐healable conductive hydrogel based on poly N‐hydroxyethyl acrylamide (PHEAA) is fabricated as electrolyte for supercapacitors. The design of the physically cross‐linked dual network, and rich hydrogen bonds endow the hydrogel with robust mechanical properties and strong self‐healing ability. The hydrogel exhibited an excellent stretchability (723%) and a high ionic conductivity (21.8 mS/cm). Specially, by in‐situ growth of electrode film, a non‐laminated supercapacitor is obtained with flexibility and self‐healing ability. Due to the non‐laminated structure, the supercapacitor can work stably under bending and punching. The supercapacitor possessed an areal capacitance of 253.1 mF/cm2 and the capacitance retention was 80% after five cutting‐healing cycles. The pseudo‐capacitance contribution of the supercapacitor after self‐healing was discussed. It is noteworthy that the supercapacitor maintains the ability to power a clock after self‐healing.

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Section: Materials Characterizationmentioning

confidence: 99%

Highly Flexible and Self‐Healing Supercapacitor Enabled by Physically Crosslinking Polymer Hydrogel Electrolyte

Hua,

Xin,

Lin

et al. 2023

Chemistry A European J

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“…Among the CDs, βCD (seven glucose units) is the most accessible, inexpensive, and versatile in terms of cavity dimensions; however, its relatively low solubility may hamper its physicochemical and biological performance . Several research groups have focused on overcoming this limitation. − We previously reported a click synthesis of two families of polyester-dendronized βCD compounds [mono- and hepta-substituted derivatives with the first (1G), second (2G), and third (3G) generation dendrons] to improve the solubility and encapsulation performance of native βCD . Compared with the hepta-substituted derivatives, the mono-substituted derivatives were more affordable to obtain and show the best compromise between the cost and loading capacity, using albendazole (a hydrophobic antiparasitic drug) as a guest model.…”

Section: Introductionmentioning

confidence: 99%

Mono-Dendronized β-Cyclodextrin Derivatives as Multitasking Containers for Curcumin. Impacting Its Solubility, Loading, and Tautomeric Form

et al. 2022

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In this study, three mono-dendronized β-cyclodextrin (βCD) derivatives (βCD-1G, βCD-2G, and βCD-3G) were used as multitasking containers of curcumin (CUR) to influence its aqueous solubility and tautomerism, both of which are related to its biological activity. We evaluated the relevant physicochemical properties of these containers associated with their potential hosting capacity. All mono-dendronized derivatives exhibited enhanced solubility in different solvents, including water, in comparison with native βCD. Gas-phase geometry optimizations by density functional theory (DFT) confirmed that none of the dendrons blocked the passage of CUR into the βCD cavity, and depending on the generation, different preorganization scenarios were promoted before complexation. Phase solubility diagrams showed that all the dendronized containers have superior performance for solubilizing CUR compared to native βCD. We proved that coprecipitation is most efficient than lyophilization for forming inclusion complexes (ICs) with dendronized containers. Even though βCD-3G with the largest 3G dendron exhibited the highest CUR loading, the complexation of CUR with βCD-2G provided the supramolecular system that contains CUR preferentially in its diketo tautomer, which is known for its antioxidant activity.

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“…The broad application prospects of stimulus responsive hydrogels have led to various single-response [21], double-response and multi-response hydrogels being studied and applied [22][23][24]. However, there are few reports on reduction/temperature dual response hydrogels.…”

Section: Introductionmentioning

confidence: 99%

Temperature/Reduction Dual Response Nanogel Is Formed by In Situ Stereocomplexation of Poly (Lactic Acid)

et al. 2021

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A novel type of dual responsive nanogels was synthesized by physical crosslinking of polylactic acid stereocomplexation: temperature and reduction dual stimulation responsive gels were formed in situ by mixing equal amounts of PLA (Poly (Lactic Acid)) enantiomeric graft copolymer micellar solution; the properties of double stimulation response make it more targeted in the field of drug release. The structural composition of the gels was studied by proton nuclear magnetic resonance (1H NMR) and Fourier transform infrared spectroscopy (FT-IR). Using transmission electron microscope (TEM) and dynamic light scattering (DLS) instruments, the differences in morphology and particle size were analyzed (indicating that nanogels have dual stimulus responses of temperature sensitivity and reduction). The Wide-Angle X-ray diffractionr (WAXD) was used to prove the stereocomplexation of PLA in the gels, the mechanical properties and gelation process of the gels were studied by rheology test. The physically cross-linked gel network generated by the self-recombination of micelles and then stereo-complexation has a more stable structure. The results show that the micelle properties, swelling properties and rheological properties of nanogels can be changed by adjusting the degree of polymerization of polylactic acid. In addition, it provides a safe and practical new method for preparing stable temperature/reduction response physical cross-linked gel.

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Pentaerythrityl tetra-β-cyclodextrin: Synthesis, characterization and application in multiple responses hydrogel

Cited by 10 publications

References 44 publications

Highly Flexible and Self‐Healing Supercapacitor Enabled by Physically Crosslinking Polymer Hydrogel Electrolyte

Highly Flexible and Self‐Healing Supercapacitor Enabled by Physically Crosslinking Polymer Hydrogel Electrolyte

Mono-Dendronized β-Cyclodextrin Derivatives as Multitasking Containers for Curcumin. Impacting Its Solubility, Loading, and Tautomeric Form

Temperature/Reduction Dual Response Nanogel Is Formed by In Situ Stereocomplexation of Poly (Lactic Acid)

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