Journal Article10.1039/C7CS00406K
Covalent layer-by-layer films: chemistry, design, and multidisciplinary applications
Qi An,Tao Huang,Feng Shi +2 more
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TL;DR: The achievement in the discipline of chemistry (film-building methods) is expected to translate into readily available techniques for materials engineers and thus provide diverse functional material design protocols to address the energy, biomedical, and environmental challenges faced by the entire scientific community.
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Abstract: Covalent layer-by-layer (LbL) assembly is a powerful method used to construct functional ultrathin films that enables nanoscopic structural precision, componential diversity, and flexible design. Compared with conventional LbL films built using multiple noncovalent interactions, LbL films prepared using covalent crosslinking offer the following distinctive characteristics: (i) enhanced film endurance or rigidity; (ii) improved componential diversity when uncharged species or small molecules are stably built into the films by forming covalent bonds; and (iii) increased structural diversity when covalent crosslinking is employed in componential, spacial, or temporal (labile bonds) selective manners. In this review, we document the chemical methods used to build covalent LbL films as well as the film properties and applications achievable using various film design strategies. We expect to translate the achievement in the discipline of chemistry (film-building methods) into readily available techniques for materials engineers and thus provide diverse functional material design protocols to address the energy, biomedical, and environmental challenges faced by the entire scientific community.
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Citations
Antibacterial hydrogel coating: Strategies in surface chemistry.
TL;DR: The chemical methods used to fix the antibacterial hydrogel layer on the substrate are summarized, which include surface-initiated graft crosslinking polymerization, anchoring the hydrogelslayer on the surface duringCrosslinking, and chemical crossl linking of layer-by-layer coating.
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Biomedical Applications of Layer-by-Layer Self-Assembly for Cell Encapsulation: Current Status and Future Perspectives.
Tengfei Liu,Ying Wang,Wen Zhong,Bingyun Li,Kibret Mequanint,Gaoxing Luo,Malcolm Xing,Malcolm Xing +7 more
TL;DR: This review summarizes the state‐of‐the‐art and potential future biomedical applications of LbL cell encapsulation in cell‐based biosensors, cell transplantation, cell/molecule delivery, and tissue engineering.
133
A closer physico-chemical look to the Layer-by-Layer electrostatic self-assembly of polyelectrolyte multilayers.
TL;DR: This review tries to provide a broad physico-chemical perspective to the study of the fabrication process of PEMs by the LbL method, which allows one to take advantage of the many possibilities offered for this approach on the fabrication of new functional nanomaterials.
130
Recent Development of Alginate-Based Materials and Their Versatile Functions in Biomedicine, Flexible Electronics, and Environmental Uses.
TL;DR: Alginate is a natural polysaccharide that is easily chemically modified or compounded with other components for various types of functionalities as mentioned in this paper, such as ionically conductive hydrogel or 3D or 4D cell culturing matrix.
105
The Use of Layer-by-Layer Self-Assembly and Nanocellulose to Prepare Advanced Functional Materials.
Lars Wågberg,Johan Erlandsson +1 more
TL;DR: How low-density, wet stable networks of cellulose nanofibrils can be used as substrates for the preparation of antibacterial, electrically interactive, and fire-retardant materials by forming well-defined LbLs inside these networks is considered.
104
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TL;DR: In this article, crosslinked organic and hybrid multilayer thin films based on polystyrene-grafted platinum nanoparticles and azidomethyl-functionalized polystyrenes are built up by sequential spin-coating and UV crosslinking processes.
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TL;DR: The resulting biosensor showed excellent catalytic activity towards the electroreduction of dissolved oxygen at low overvoltage and the enzyme electrode exhibited good electrocatalytic response towards the glucose, suggesting that the analytical performance such as sensitivity and detection limit of the glucose biosensors could be tuned to the desired level by adjusting the number of deposited GOx/AMWNTs bilayers.
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Self-assembled multilayer films of sulfonated graphene and polystyrene-based diazonium salt as photo-cross-linkable supercapacitor electrodes.
TL;DR: The large accessible surface area of graphene nanosheets and the cross-linking structure afforded the LbL films with high specific capacitance and excellent cyclic stability when used as supercapacitor electrodes and other functional devices.
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Chemical control of yeast cell division by cross-linked shells of catechol-grafted polyelectrolyte multilayers.
Juno Lee,Sung Ho Yang,Seok-Pyo Hong,Daewha Hong,Haeshin Lee,Hee-Yoon Lee,Yang-Gyun Kim,Insung S. Choi +7 more
TL;DR: A mussel-inspired cytocompatible encapsulation method for achieving a " cell-division control" with cross-linked layer-by-layer (LbL) shells is developed and a new measuring unit is suggested, t-2.0 OD 600, for quantifying "cell-division timing" based on microbial growth kinetics.
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