Supramolecular Materials最新文献

{"title":"Behavior of supramolecular cross-links formed by host-guest interactions in hydrogels responding to water contents","authors":"Chiharu Ueda ,&nbsp;Junsu Park ,&nbsp;Kazuya Hirose ,&nbsp;Subaru Konishi ,&nbsp;Yuka Ikemoto ,&nbsp;Motofumi Osaki ,&nbsp;Hiroyasu Yamaguchi ,&nbsp;Akira Harada ,&nbsp;Masaru Tanaka ,&nbsp;Go Watanabe ,&nbsp;Yoshinori Takashima","doi":"10.1016/j.supmat.2021.100001","DOIUrl":"10.1016/j.supmat.2021.100001","url":null,"abstract":"<div><p>Reversible or movable cross-links based on host-guest interactions in supramolecular materials create functions such as enhanced mechanical properties and stimulus responsiveness. A supramolecular complex on a polymer side chain achieves the described functions as a reversible cross-link. Generally, 1:1 complex is utilized as a cross-link for the host-guest interaction based-supramolecular materials, but herein, the 1:2 complex between γ-cyclodextrin (γCD) and methyl viologen terminated undecyl acrylate (VC11) was chosen to cross-link three polymeric chains. The obtained supramolecular hydrogels γCD-VC11 (<em>x, y</em>) (<em>x</em> and <em>y</em> represent the mol% of the γCD and VC11 units in feeding, respectively) was prepared by radical copolymerization with acrylamide as a mainchain monomer. Tensile test revealed that toughness (<em>G</em>_f) of γCD-VC11 (<em>x, y</em>) maximized at water content (<em>W</em>_c) ≈ 40 wt.%. The maxima of <em>G</em>_f depended on the amount of γCD and VC11 units. Through dynamic mechanical analysis, Arrhenius style plots between horizontal shift factors and temperature determined activation energies (<em>E</em>_a) of each γCD-VC11 (<em>x, y</em>) and MBAAm (0.5). <em>E</em>_a of MBAAm (0.5) monotonically decreased with the increasing <em>W</em>_c. On the other hand, slope of <em>E</em>_a of γCD-VC11 (<em>x, y</em>) changed at <em>W_c</em> ≈ 40 wt.%. Simultaneously considering results of the tensile tests and DMA, the reversible cross-links formed by γCD and VC11 in γCD-VC11 (<em>x, y</em>) function effectively at appropriate <em>W</em>_c.</p></div>","PeriodicalId":101187,"journal":{"name":"Supramolecular Materials","volume":"1 ","pages":"Article 100001"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667240521000015/pdfft?md5=20b04e0ce750dfaac2878b1832c00da9&pid=1-s2.0-S2667240521000015-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73176122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multicolor fluorescent supramolecular adhesive gels based on a single molecule with aggregation-induced ratiometric emission","authors":"Hanwei Zhang,&nbsp;Hui Liu,&nbsp;Ziqing Hu,&nbsp;Xiaofan Ji","doi":"10.1016/j.supmat.2022.100018","DOIUrl":"10.1016/j.supmat.2022.100018","url":null,"abstract":"<div><p>Multicolor fluorescent materials, showing various fluorescent colors at the same time, have been applied in biomimetic materials, sensor arrays, and information storage. However, the vast majority of present multicolor fluorescent materials were prepared within a complicated as well as costly process, which was achieved by incorporating a variety of fluorophores. Herein, we designed multicolor fluorescent supramolecular adhesive gels (<strong>MSAGs</strong>) based on single pyrene benzohydrazonate (PBHZ) fluorophore. When the concentration of PBHZ groups was adjusted, the gel blocks that make up <strong>MSAGs</strong> exhibited distinct fluorescence colors ranging from blue to bright green due to the aggregation-induced ratiometric emission (AIRE) effect. In addition, as a consequence of 2-ureido-4-pyrimidone (UPy) units containing in the gel blocks, <strong>MSAGs</strong> could be facilely obtained through interfacial supramolecular adhesion between these gel blocks. Moreover, the resulting <strong>MSAGs</strong> with various patterns showed superiority in applying to encrypt multiple information.</p></div>","PeriodicalId":101187,"journal":{"name":"Supramolecular Materials","volume":"1 ","pages":"Article 100018"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667240522000113/pdfft?md5=87708a97f89dec8400f27c02ed99f10c&pid=1-s2.0-S2667240522000113-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79409449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reconfigurable structured liquids","authors":"Yang Yang ,&nbsp;Zhiqin Xia ,&nbsp;Yuzheng Luo ,&nbsp;Zhanpeng Wu ,&nbsp;Shaowei Shi ,&nbsp;Thomas P. Russell","doi":"10.1016/j.supmat.2022.100013","DOIUrl":"https://doi.org/10.1016/j.supmat.2022.100013","url":null,"abstract":"<div><p>The past decades have witnessed the discovery and rapid development of adaptable, reconfigurable all-liquid systems where, by the interfacial assembly and jamming of nanoparticles (NPs), a liquid-liquid system can be structured, i.e., locked into a highly non-equilibrium spatial arrangement, maintaining all the inherent characteristics of the liquids but having the spatial organization and structural stability of a solid. Due to the nature of the interfacial jamming, external stimuli can be used to re-shape the liquids, imparting a responsiveness and malleability to the constructs. In general, the binding energy of a NP to the interface is small, so that compressive forces associated with the reduction in the interfacial area to minimize energy, are sufficient to expel the NPs from the interface. By generating nanoparticle surfactants (NPSs), where ligands dissolved in one liquid can interfacially interact with NPs dispersed in a second immiscible liquid, the binding energy of the NP is massively increased, enabling an interfacial jamming of the NPSs and an arresting of shape changes. Since the jamming is immune to the nature of the NPs, advantage can be taken of the inherent functionality of the NPs, e.g., catalytic, enzymatic, optical, electronic or magnetic, while chemical functionality, including selective functional group recognition, can be introduced through the ligands comprising the NPSs. NPS assemblies can be realized at the interface between any two immiscible liquids (oil-water, oil-oil, and water-water), underscoring the generality of this concept and the range of potential applications. Here, we review some of the basic principles underlying the formation of NPSs and the structuring of liquids, using examples drawn from work in our laboratories and elsewhere, and we provide a perspective on where challenges and applications of this unique state of matter exist.</p></div>","PeriodicalId":101187,"journal":{"name":"Supramolecular Materials","volume":"1 ","pages":"Article 100013"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S266724052200006X/pdfft?md5=f60dcc68baf161fe68ec5a691ae59c8d&pid=1-s2.0-S266724052200006X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136553697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interfacial Self-Assembly of Nanoparticles into Macroscopic, Monolayered Films","authors":"Qianhui Cheng, Hetong Fang, Rui Cao, Zhuoyuan Ma, Shun Wang, Renguo Xie, Haibing Xia, Dayang Wang","doi":"10.1016/j.supmat.2022.100021","DOIUrl":"https://doi.org/10.1016/j.supmat.2022.100021","url":null,"abstract":"","PeriodicalId":101187,"journal":{"name":"Supramolecular Materials","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86076704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Engineering coacervate droplets towards the building of multiplex biomimetic protocells","authors":"Hua Wu, Yan Qiao","doi":"10.1016/j.supmat.2022.100019","DOIUrl":"https://doi.org/10.1016/j.supmat.2022.100019","url":null,"abstract":"","PeriodicalId":101187,"journal":{"name":"Supramolecular Materials","volume":"25 21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88874967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}