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Supramolecular Interactions Induced Chiral Assembly of Plasmonic Nanoparticles with Enhanced Optical Asymmetry
LIU Dongsheng
Chem. J. Chinese Universities    2021, 42 (6): 1619-1621.   DOI: 10.7503/cjcu20210293
Abstract1118)   HTML89)    PDF(pc) (2441KB)(783)       Save

Science has recently reported the important progress of chiral nanomaterials achieved by LIU Kun’s group from Jilin University and coworkers. Supramolecular interactions of gold nanorods(NRs) with human islet amyloid peptides catalyze their assembly into metallic superstructures with unusually high cholesteric order. Contrary to current theories, the transition from individual NRs to long straight helices leads to increase of g-factor(up to 0.12) by 4600 times. This work establishes the link between the liquid crystals and chiral inorganic nanostructures; provides unifying design principles for organic and inorganic optically active media and opens new modalities for drug discovery for amyloid diseases.

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Photocatalytic Application of Covalent Organic Frameworks
LI Li, LI Pengfei, WANG Bo
Chem. J. Chinese Universities    2020, 41 (9): 1917-1932.   DOI: 10.7503/cjcu20200409
Abstract2984)   HTML207)    PDF(pc) (12359KB)(1962)       Save

Covalent organic frameworks(COFs) are crystalline porous organic materials, which are built from organic building blocks through covalent bonds. COFs have the characteristics of well-defined pore structure and high specific surface area. COFs have been widely used in gas storage and separation, catalysis, sensing, energy storage, photoelectric conversion and many other fields. Introducing organic building blocks with adjustable light absorption into COFs provide COF with a great potential in photocatalysis. In recent years, COFs have developed rapidly in the field of photocatalysis. This paper summarizes the recent progress of COFs in the fields of photocatalytic hydrogen production, photocatalytic carbon dioxide reduction, photocatalytic organic reactions, and photocatalytic degradation of pollutants, and looks forward to its further prospects in the field of photocatalysis.

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Preparation and Applications of Stretchable and Tough Hydrogels †
SHENG Hui, XUE Bin, QIN Meng, WANG Wei, CAO Yi
Chem. J. Chinese Universities    2020, 41 (6): 1194-1207.   DOI: 10.7503/cjcu20190656
Abstract2527)   HTML200)    PDF(pc) (5703KB)(2098)       Save

In this review, we focus on the design principle of stretchable and tough hydrogels as well as the applications in the fields of tissue engineering and flexible electronic devices. Through connecting hydrogel network structures, toughening mechanisms and chemical structures with macroscopic mechanical properties, we mainly discussed the research progress of single network hydrogel, double network hydrogel, nanocomposite hydrogel and so on. The summary and outlook of the new ideas and directions of stretchable and tough hydrogels were also demonstrated at last.

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Recent Advances in Polymeric Nano-sized Carrier Systems †
ZHAO Yu, CAO Wanqing, LIU Yang
Chem. J. Chinese Universities    2020, 41 (5): 909-923.   DOI: 10.7503/cjcu20190646
Abstract2570)   HTML144)    PDF(pc) (3991KB)(1181)       Save

In recent years, the nanotechnology has attracted a lot of attention in biomedicine owing to the great enhancement of therapeutic efficiency. A variety of polymeric nano-sized carrier systems have been deve-loped for targeted drug delivery and drug controlled release. In order to improve drug accumulation in the focal lesions and reduce the side effects, smart stimuli-responsive nano-sized carriers have emerged. Now, the polymeric nano-sized drug carriers have shown great potential for cancers, metabolic disorders and infectious diseases. This review focuses on the recent advances in polymeric nano-sized carriers and their applications in biomedicine.

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Recent Progress in Functional Nanomaterials Based on Self-assembly Technology †
WANG Jun, WANG Tie
Chem. J. Chinese Universities    2020, 41 (3): 377-387.   DOI: 10.7503/cjcu20190643
Abstract2159)   HTML131)    PDF(pc) (10172KB)(1229)       Save

The rapid development of nanoscale self-assembly technology has broadened the application of nanomaterials. The self-assembly provides an effective and promising way to form new nanomaterials. This review introduces the value of nanoscale self-assembly technology and emerging synthesis methods in recent years. It focuses on the types of interactions driving nanoscopic self-assembly, including van der Waals forces, electrostatic forces, magnetic forces, hydrogen bonding, entropy effects, and other interactions(solvophobic interactions, DNA complementary base paring rules, etc.). In addition, the application fields as well as the existing opportunities and challenges of nanoscale self-assembly in developing novel materials are discussed.

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