Search Results - "OUSAKA, Naoki"

Stimuli-responsive Molecular Springs Based on Single- and Multi-stranded Helical Structures by Ousaka, Naoki, Yashima, Eiji

“…A wide variety of synthetic molecular machines has been designed and synthesized to construct nanometer-scale assemblies whose molecular motions can be…”
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Stapling strategy for slowing helicity interconversion of α-helical peptides and isolating chiral auxiliary-free one-handed forms by Ousaka, Naoki, MacLachlan, Mark J., Akine, Shigehisa

“…In nature, α-helical peptides adopt right-handed conformations that are dictated by L-amino acids. Isolating one-handed α-helical peptides composed of only…”
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Publisher Correction: Stapling strategy for slowing helicity interconversion of α-helical peptides and isolating chiral auxiliary-free one-handed forms by Ousaka, Naoki, MacLachlan, Mark J., Akine, Shigehisa

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Allosteric Regulation of Unidirectional Spring-like Motion of Double-Stranded Helicates by Suzuki, Yoshimasa, Nakamura, Taiki, Iida, Hiroki, Ousaka, Naoki, Yashima, Eiji

“…We report the unprecedented allosteric regulation of the extension and contraction motions of double-stranded spiroborate helicates composed of 4,4′-linked…”
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Chiral information harvesting in dendritic metallopeptides by Ousaka, Naoki, Takeyama, Yuki, Iida, Hiroki, Yashima, Eiji

“…Long-range communication of stereochemical information is common in biological systems, particularly in enzyme-catalysed reactions. Here, we report the remote…”
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“Helix‐in‐Helix” Superstructure Formation through Encapsulation of Fullerene‐Bound Helical Peptides within a Helical Poly(methyl methacrylate) Cavity by Ousaka, Naoki, Mamiya, Fumihiko, Iwata, Yoshiaki, Nishimura, Katsuyuki, Yashima, Eiji

“…A one‐handed 310‐helical hexapeptide is efficiently encapsulated within the helical cavity of st‐PMMA when a fullerene (C60) derivative is introduced at the…”
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Water-mediated deracemization of a bisporphyrin helicate assisted by diastereoselective encapsulation of chiral guests by Ousaka, Naoki, Yamamoto, Shinya, Iida, Hiroki, Iwata, Takuya, Ito, Shingo, Hijikata, Yuh, Irle, Stephan, Yashima, Eiji

“…Deracemization is a powerful method by which a racemic mixture can be transformed into an excess of one enantiomer with the aid of chiral auxiliaries, but has…”
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Remote-controlled regio- and diastereodifferentiating photodimerization of a dynamic helical peptide-bound 2-substituted anthracene by Taura, Daisuke, Urushima, Akio, Sugioka, Yusuke, Ousaka, Naoki, Yashima, Eiji

“…Photodimerization of a novel 2-substituted anthracene linked to a right-handed 310-helical nonapeptide induced by long-range chiral information transfer from…”
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Spiroborate-Based Double-Stranded Helicates: Meso-to-Racemo Isomerization and Ion-Triggered Springlike Motion of the Racemo-Helicate by Ousaka, Naoki, Shimizu, Kaori, Suzuki, Yoshimasa, Iwata, Takuya, Itakura, Manabu, Taura, Daisuke, Iida, Hiroki, Furusho, Yoshio, Mori, Tadashi, Yashima, Eiji

“…A one-handed double-stranded spiroborate helicate exhibits a unique reversible extension–contraction motion coupled with a twisting motion in one direction…”
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Chirality- and sequence-selective successive self-sorting via specific homo- and complementary-duplex formations by Makiguchi, Wataru, Tanabe, Junki, Yamada, Hidekazu, Iida, Hiroki, Taura, Daisuke, Ousaka, Naoki, Yashima, Eiji

“…Self-recognition and self-discrimination within complex mixtures are of fundamental importance in biological systems, which entirely rely on the preprogrammed…”
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Construction of Covalent Organic Nanotubes by Light-Induced Cross-Linking of Diacetylene-Based Helical Polymers by Maeda, Kaho, Hong, Liu, Nishihara, Taishi, Nakanishi, Yusuke, Miyauchi, Yuhei, Kitaura, Ryo, Ousaka, Naoki, Yashima, Eiji, Ito, Hideto, Itami, Kenichiro

“…Organic nanotubes (ONTs) are tubular nanostructures composed of small molecules or macromolecules that have found various applications including ion…”
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Encapsulation of Aromatic Guests in the Bisporphyrin Cavity of a Double-Stranded Spiroborate Helicate: Thermodynamic and Kinetic Studies and the Encapsulation Mechanism by Ousaka, Naoki, Yamamoto, Shinya, Iida, Hiroki, Iwata, Takuya, Ito, Shingo, Souza, Rafael, Hijikata, Yuh, Irle, Stephan, Yashima, Eiji

“…A double-stranded spiroborate helicate bearing a bisporphyrin unit in the middle forms an inclusion complex with electron-deficient aromatic guests that are…”
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Nonlinear Enhancement of Chiroptical Response through Subcomponent Substitution in M4L6 Cages by Ousaka, Naoki, Clegg, Jack K., Nitschke, Jonathan R.

“…One for all, all for one: A self‐assembled M4L6 cage, incorporating small amounts of enantiopure subcomponents at the peripheries, forms predominantly with a…”
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Tug‐of‐War in a Dynamic Helical Peptide: Solvent‐Induced Helix‐Helix Transition of a Lactam‐Bridged Peptide Composed of Point‐ and Axial Chiralities Remote from Each Other by Urushima, Akio, Ousaka, Naoki, Yashima, Eiji

“…The dynamic axial chirality of oligopeptide‐bound 2,2′‐bipyridine (bpy) residues can be remote‐controlled and diastereoselectively locked. A right‐handed…”
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Chiral amplification of supramolecular coassemblies of chiral and achiral acylhydrazine-functionalized biphenyls and their copolymers by Ikai, Tomoyuki, Kawabata, Satoshi, Okuda, Shogo, Ousaka, Naoki, Yashima, Eiji

“…An optically active acylhydrazine-functionalized biphenyl (AHB) bearing L -alanine-derived oligoamide side chains with tris(alkoxy)phenyl residues at the…”
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Chiral tether-mediated stabilization and helix-sense control of complementary metallo-double helices by Horie, Miki, Ousaka, Naoki, Taura, Daisuke, Yashima, Eiji

“…A series of novel Pt -linked double helices were prepared by inter- or intrastrand ligand-exchange reactions of the complementary duplexes composed of chiral…”
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Efficient Long-Range Stereochemical Communication and Cooperative Effects in Self-Assembled Fe4L6 Cages by Ousaka, Naoki, Grunder, Sergio, Castilla, Ana M, Whalley, Adam C, Stoddart, J. Fraser, Nitschke, Jonathan R

“…A series of large, optically active Fe4L6 cages was prepared from linear 5,5′-bis(2-formylpyridines) incorporating varying numbers (n = 0–3) of oligo-p-xylene…”
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Chirality Control and Its Memory at Microphase-Separated Interface of Self-Assembled Chiral Block Copolymers for Nanostructured Chiral Materials by Li, Ming-Chia, Ousaka, Naoki, Wang, Hsiao-Fang, Yashima, Eiji, Ho, Rong-Ming

“…Here, we show the induced chirality of an achiral chromophoric dye as a joint of polylactide-containing chiral block copolymers (BCPs*) driven by…”
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Double‐Stranded Helical Oligomers Covalently Bridged by Rotary Cyclic Boronate Esters by Iida, Hiroki, Ohmura, Kenji, Noda, Ryuta, Iwahana, Soichiro, Katagiri, Hiroshi, Ousaka, Naoki, Hayashi, Taku, Hijikata, Yuh, Irle, Stephan, Yashima, Eiji

“…Novel double helices covalently bridged by cyclic boronate esters were synthesized from complementary dimers with an m‐terphenyl backbone joined by a chiral or…”
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Alkali Metal Ion-enhanced Threading of a Perylenediimide-bound Polymer Chain through a Double-stranded Spiroborate Helicate with a Bisporphyrin Unit by Ousaka, Naoki, Yamamoto, Shinya, Hayashi, Naoki, Li, Ming-Chia, Ho, Rong-Ming, Yashima, Eiji

“…Threading of a poly(ethylene glycol) (PEG) chain linked to a perylenediimide unit at one end with a bulky stopper at the other end through an inner cavity of a…”
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