Stepwise Stereocomplex Assembly of Stereoregular Poly(methyl methacrylate)s on a Substrate

Serizawa, Takeshi; Hamada, Kenichi; Kitayama, Tatsuki; Fujimoto, Nobutaka; Hatada, and Koichi; Akashi, Mitsuru

doi:10.1021/ja9913535

Cited by 186 publications

(167 citation statements)

References 81 publications

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“…223227 Various modes of interaction including supramolecular inclusion, 228 charge-transfer complex formation, 229,230 stereocomplex formation, 231,232 and surface solgel reaction 233,234 have been demonstrated within the last two decades as well as film manufacture by automation (see the last section). 235238 3.…”

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confidence: 99%

Layer-by-layer Nanoarchitectonics: Invention, Innovation, and Evolution

et al. 2013

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Materials fabrication with nanoscale structural precision based on bottom-up-type self-assembly has become more important in various current disciplines in chemistry including materials chemistry, organic chemistry, physical chemistry, analytical chemistry, biochemistry, colloid and surface chemistry, and supramolecular chemistry. Although the design of new materials based on nanoscale self-assembly is anticipated as a key concept, preparing complete three-dimensional structures at nanoscale precision remains a difficult target using current technologies. Rather, dimension-reduced approaches such as layering of two-dimensional nanostructures into precisely controlled lamellar nanomaterials are currently achievable. In particular, layer-by-layer (LbL) assembly is known as a highly versatile method for fabrication of controlled layered structures from various kinds of component materials using very simple, inexpensive, and rapid procedures. Therefore, fabrication of multilayer films through the LbL deposition process has attracted growing interest from various research communities. The high versatility and flexibility of LbL assembly is continuously creating new concepts, new materials, new procedures, and new applications. In this highlight review, we focus on nanoarchitectonics by LbL assembly. After an initial introduction on the invention and a brief history of the LbL assembly technique, innovations and the evolution of the technique are described based mainly on recent examples, which are categorized into two sections: (i) developments in methodology (technical, material, and phenomenological aspects with expansion of concept) and (ii) progress in applications (physical, chemical/biochemical, and biomedical applications).

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confidence: 99%

Layer-by-layer Nanoarchitectonics: Invention, Innovation, and Evolution

et al. 2013

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“…In addition to polymeric materials including synthetic polymers [104,105], biopolymers [106,107], and inorganic colloidal objects [108,109], small organic molecules such as dyes and molecular assemblies [110,111] can be immobilized into thin layers by using this method. Because driving forces for assembly can be expanded to other interactions including coordination [112,113], hydrogen bonding [114,115], biospecific recognition [116,117], and formation of charge transfer complexes [118] and stereo-complexes [119,120], various kinds of organic functional molecules can be incorporated to the films through supramolecular interactions.…”

Section: Commanded Assemblymentioning

confidence: 99%

Paradigm shift from self-assembly to commanded assembly of functional materials: recent examples in porphyrin/fullerene supramolecular systems

Ishihara

et al. 2012

Science and Technology of Advanced Materials

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Current nanotechnology based on top-down nanofabrication may encounter a variety of drawbacks in the near future so that development of alternative methods, including the so-called bottom-up approach, has attracted considerable attention. However, the bottom-up strategy, which often relies on spontaneous self-assembly, might be inefficient in the development of the requisite functional materials and systems. Therefore, assembly processes controlled by external stimuli might be a plausible strategy for the development of bottom-up nanotechnology. In this review, we demonstrate a paradigm shift from self-assembly to commanded assembly by describing several examples of assemblies of typical functional molecules, i.e. porphyrins and fullerenes. In the first section, we describe recent progress in the design and study of self-assembled and co-assembled supramolecular architectures of porphyrins and fullerenes. Then, we show examples of assembly induced by external stimuli. We emphasize the paradigm shift from self-assembly to commanded assembly by describing the recently developed electrochemical-coupling layer-by-layer (ECC-LbL) methodology.

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“…SC films were prepared by the layer-by-layer assembly method, 14 which is the simple alternating immersion of gold-coated glass slides into acetonitrile solutions (1.7 mg ml À1 ) of it-and st-PMMAs. 13 The films thicknesses were adjusted to approximately 10 nm (see the Supplementary Information for the detailed experimental methods). Biotinylated peptides were prepared by solid-phase peptide synthesis using standard 9-fluorenylmethyloxycarbonyl -based procedures and using fluorenylmethyloxycarbonyl-glutamic acid g-biotinylated through a mono(propylene glycol) and di(ethylene glycol) spacer as a biotinylating reagent (see the Supplementary Information for the detailed experimental methods).…”

Section: Experimental Procedures Materialsmentioning

confidence: 99%

“…In addition, PMMA stereocomplex (SC) films, which were composed of both it-and st-PMMAs, 13 were similarly evaluated by their specific peptides under the same conditions, and the results were compared against those of it-and st-PMMAs. We report herein that the ability to functionally modify the film surfaces with the peptides differs depending on the PMMA species.…”

Section: Introductionmentioning

confidence: 99%