A multifunctional supramolecular hydrogel: preparation, properties and molecular assembly
文献类型：期刊论文
| 作者 | Wang, Lin; Shi, Xuefeng; Wu, Yaqian; Zhang, Jian; Zhu, Yuejun; Wang, Jinben |
| 刊名 | SOFT MATTER
 |
| 出版日期 | JAN 28 2018 |
| 卷号 | 14期号:4页码:566-573 |
| 英文摘要 | A novel supramolecular hydrogel was designed and constructed by molecular self-assembly of a cationic gemini surfactant, 1,3-bis(N, N-dimethyl-N-cetylammonium)-2-propylacrylate dibromide (AGC(16)), and an anionic aromatic compound, trisodium 1,3,6-naphthalenetrisulfonate (NTS). Owing to its unique structure, the hydrogel (abbreviated as AGC(16)/NTS) has the potential to be used as a multifunctional drug delivery system. The structure and properties of AGC(16)/NTS were characterized by rheological measurements, differential scanning calorimetry, variable-temperature H-1 nuclear magnetic resonance, ultraviolet-visible spectroscopy, variable-temperature fluorescence emission spectroscopy, cryogenic scanning electron microscopy, transmission electron microscopy and X-ray diffraction methods. The rheological and DSC analysis results revealed that the gel AGC(16)/NTS was formed below 57 degrees C. It was found from UV-vis, fluorescence and H-1 NMR spectroscopy characterization that aromatic p-p stacking and hydrophobic forces were indispensable to the formation of AGC(16)/NTS. The Cryo-SEM and TEM observation results indicated that gelators AGC(16) and NTS self-assembled into one-dimensional fibers which further tightly intertwined to form a three-dimensional network structure. Based on the spectroscopic data and X-ray diffraction measurement results, a self-assembly model was proposed, helping to further understand the molecular self-assembly mechanism of AGC(16)/NTS. It was also found that the electrostatic force, hydrophobic force and p-p interaction were the three main driving forces for the gelation. The multiple non-covalent interactions between AGC(16) and NTS endowed the hydrogel with excellent performance when the hydrogel was used as a carrier for drug delivery, due to multiple micro-domains within the same gel system. We further investigated the encapsulation and releasing properties of the hydrogel, using the hydrophobic model drug curcumin (Cur) and the model drug naproxen sodium (Npx) with aromatic ring structure. The fluorescence spectroscopy analysis confirmed that Npx was carried through aromatic p-p stacking and the H-1 NMR measurement result revealed that Cur was encapsulated within the hydrophobic cavities of AGC(16)/NTS through hydrophobic interaction. Moreover, the drug release study results showed a sustained release of drugs from the hydrogel, indicating good application prospects in exploring new multifunctional drug delivery systems. |
| WOS记录号 | WOS:000423402100009 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38821]  |
| 专题 | 化学研究所_其它 |
| 推荐引用方式 GB/T 7714 | Wang, Lin,Shi, Xuefeng,Wu, Yaqian,et al. A multifunctional supramolecular hydrogel: preparation, properties and molecular assembly[J]. SOFT MATTER,JAN ,14(4):566-573. |
| APA | Wang, Lin,Shi, Xuefeng,Wu, Yaqian,Zhang, Jian,Zhu, Yuejun,&Wang, Jinben.(JAN ).A multifunctional supramolecular hydrogel: preparation, properties and molecular assembly.SOFT MATTER,14(4),566-573. |
| MLA | Wang, Lin,et al."A multifunctional supramolecular hydrogel: preparation, properties and molecular assembly".SOFT MATTER 14.4(JAN ):566-573. |
入库方式： OAI收割
来源：化学研究所
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