- Perylene bisimide dimer aggregates: Fundamental insights into self-assembly by NMR and UV/vis spectroscopy
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A novel perylene bisimide (PBI) dye bearing one solubilizing dialkoxybenzyl and one bulky 2,5-di-tert-butylphenyl substituent was synthesized and its aggregation behavior was analyzed by NMR and UV/Vis spectroscopy in various chloroform/methylcyclohexane
- Shao, Changzhun,Grüne, Matthias,Stolte, Matthias,Würthner, Frank
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- Rational Design of Supramolecular Dynamic Protein Assemblies by Using a Micelle-Assisted Activity-Based Protein-Labeling Technology
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The self-assembly of proteins into higher-order superstructures is ubiquitous in biological systems. Genetic methods comprising both computational and rational design strategies are emerging as powerful methods for the design of synthetic protein complexes with high accuracy and fidelity. Although useful, most of the reported protein complexes lack a dynamic behavior, which may limit their potential applications. On the contrary, protein engineering by using chemical strategies offers excellent possibilities for the design of protein complexes with stimuli-responsive functions and adaptive behavior. However, designs based on chemical strategies are not accurate and therefore, yield polydisperse samples that are difficult to characterize. Here, we describe simple design principles for the construction of protein complexes through a supramolecular chemical strategy. A micelle-assisted activity-based protein-labeling technology has been developed to synthesize libraries of facially amphiphilic synthetic proteins, which self-assemble to form protein complexes through hydrophobic interaction. The proposed methodology is amenable for the synthesis of protein complex libraries with molecular weights and dimensions comparable to naturally occurring protein cages. The designed protein complexes display a rich structural diversity, oligomeric states, sizes, and surface charges that can be engineered through the macromolecular design. The broad utility of this method is demonstrated by the design of most sophisticated stimuli-responsive systems that can be programmed to assemble/disassemble in a reversible/irreversible fashion by using the pH or light as trigger.
- Sandanaraj, Britto S.,Reddy, Mullapudi Mohan,Bhandari, Pavankumar Janardhan,Kumar, Sugam,Aswal, Vinod K.
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supporting information
p. 16085 - 16096
(2018/10/15)
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- HYDROPHOBIN MIMICS: PROCESS FOR PREPARATION THEREOF
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The present invention discloses hydrophobin mimics of formula (I) comprising a protein head group, hydrophilic linker and hydrophobic tail and to a process for synthesis of library of hydrophobin mimics thereof. The hydrophobin mimics of the present invention self-assemble to form protein nanoparticles/nanocontainer either alone or in a specified chemical environment. The hydrophobin mimics (I) of the present invention find application in area of bio-nanotechnology.
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Paragraph 0124; 0125; 0206; 0207; 0208-0215; 0245-0254
(2017/09/02)
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- Synthesis and characterization of novel dendrons bearing amino-nitro-substituted azobenzene units and oligo(ethylene glycol) spacers: Thermal, optical properties, langmuir blodgett films and liquid-crystalline behaviour
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In this work, we report the synthesis and characterization of a novel series of first and second generation Frechet type dendrons bearing amino-nitro substituted azobenzene units and tetra(ethylene glycol) spacers. These compounds were fully characterized
- Ortiz-Palacios, Jesus,Rodriguez-Alba, Efrain,Avelar, Mayra,Martinez, Ana,Del Pilar Carreon-Castro, Maria,Rivera, Ernesto
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p. 1502 - 1527
(2013/04/10)
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- Asymmetric induction in the preparation of helical receptor-anion complexes: Ion-pair formation with chiral cations
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Asymmetry through ion pairing: Upon addition of chloride and bromide ions, as chiral ammonium salts, to solutions of pyrrole-based π-conjugated linear oligomers, helical structures form with asymmetric induction, which is guided by the formation of diaste
- Haketa, Yohei,Bando, Yuya,Takaishi, Kazuto,Uchiyama, Masanobu,Muranaka, Atsuya,Naito, Masanobu,Shibaguchi, Hiroshi,Kawai, Tsuyoshi,Maeda, Hiromitsu
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supporting information; experimental part
p. 7967 - 7971
(2012/08/29)
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- Photo-induced energy transfer in a Th-symmetrical hexakis-adduct of C60 substituted with π-conjugated oligomers
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A stilbene derivative bearing a terminal alkyne unit has been prepared and grafted onto a Th-symmetrical C60 hexakis-adduct building block under alkyne/azide copper mediated Huisgen 1,3-dipolar cycloaddition conditions. The photophys
- Iehl, Julien,Holler, Michel,Nierengarten, Jean-Francois,Yoosaf,Malicka, Joanna M.,Armaroli, Nicola,Strub, Jean-Marc,Van Dorsselaer, Alain,Delavaux-Nicot, Batrice
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scheme or table
p. 153 - 159
(2011/10/12)
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- Effects of polymer architecture and nanoenvironment in acylation reactions employing dendritic (Dialkylamino)pyridine catalysts
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The role of architecture and nanoenvironment in the catalytic properties of dendritic polymers containing 4-(dialkylamino)pyridines was investigated in the context of acylation reactions employing sterically demanding tertiary alcohols as substrates. Frechet-type benzyl ether and aliphatic ester dendrimers were prepared in a convergent manner from a common trivalent core containing three DMAP groups while a linear polymer was dendronized with aliphatic esters using a divergent growth scheme. Catalysis experiments clearly indicate that nanoenvironment plays the dominant role in determining the activity of the polymer catalysts, with the polyester platform being superior to the benzyl ether. Polymer architecture played little or no role in affecting catalysis. With respect to molecular transport and catalysis, this represents the first comparative study of the effect of architecture and nanoenvironment using structurally similar dendritic materials.
- Helms, Brett,Liang, Catherine O.,Hawker, Craig J.,Frechet, Jean M. J.
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p. 5411 - 5415
(2008/02/01)
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