Chem. Commun.

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Synergistic acceleration in the osteogenesis of human mesenchymal stem cells by graphene oxide-calcium phosphate nanocomposites

4 June, 2014 - 03:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC02442G, CommunicationRameshwar Tatavarty, Hao Ding, Guijin Lu, Robert J. Taylor, Xiaohong Bi
Nanocomposites consisting of oblong ultrathin plate shaped calcium phosphate nanoparticles and graphene oxide microflakes were synthesized and have demonstrated markedly synergistic effect in accelerating stem cell differentiation to osteoblasts.
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New ionic dinuclear Ir(III) Schiff base complexes with aggregation-induced phosphorescent emission (AIPE)

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6977-6980
DOI: 10.1039/C4CC01799D, CommunicationGuangfu Li, Yong Wu, Guogang Shan, Weilong Che, Dongxia Zhu, Baiqiao Song, Likai Yan, Zhongmin Su, Martin R. Bryce
Two new ionic dinuclear Ir(III) Schiff base complexes are shown to possess a luminescence quantum yield as high as 37% in neat film. These are the first examples of dinuclear ionic Ir(III) complexes to display aggregation-induced phosphorescent emission (AIPE).
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Cleavage of unactivated amide bonds by ammonium salt-accelerated hydrazinolysis

4 June, 2014 - 03:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC02014F, CommunicationYuhei Shimizu, Megumi Noshita, Yuri Mukai, Hiroyuki Morimoto, Takashi Ohshima
Ammonium salt-accelerated hydrazinolysis of unactivated amides proceeds at 50-70 [degree]C to give amines with broad substrate scope.
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Stability of [small alpha][prime or minute][prime or minute]-Fe16N2 in hydrogenous atmospheres

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7040-7043
DOI: 10.1039/C4CC01839G, CommunicationShinpei Yamamoto, Ruwan Gallage, Seiji Isoda, Yasunobu Ogata, Yoshihiro Kusano, Naoya Kobayashi, Tomoyuki Ogawa, Naoaki Hayashi, Migaku Takahashi, Mikio Takano
Coating the [small alpha][prime or minute][prime or minute]-Fe16N2 particle surface with SiO2 has proven to be a simple yet powerful method to enhance the stability of [small alpha][prime or minute][prime or minute]-Fe16N2 in hydrogenous atmospheres.
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CuAAC "click" active-template synthesis of functionalised [2]rotaxanes using small exo-substituted macrocycles: how small is too small?

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7044-7047
DOI: 10.1039/C4CC03077J, CommunicationAsif Noor, Warrick K. C. Lo, Stephen C. Moratti, James D. Crowley
A small readily synthesised 24-membered exo-alcohol functionalised pyridyl macrocycle can be exploited in the CuAAC active-template synthesis of functionalised [2]rotaxanes.
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Activation and deprotection of F-BODIPYs using boron trihalides

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7028-7031
DOI: 10.1039/C4CC02706J, CommunicationTravis Lundrigan, T. Stanley Cameron, Alison Thompson
F-BODIPYs are deprotected simply by treating with BX3 and water.
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A nonstoichiometric SnO2-[small delta] nanocrystal-based counter electrode for remarkably improving the performance of dye-sensitized solar cells

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7020-7023
DOI: 10.1039/C4CC02066A, CommunicationJian Pan, Lianzhou Wang, Jimmy C. Yu, Gang Liu, Hui-Ming Cheng
The nonstoichiometric SnO2-[small delta] counter electrode for dye-sensitized solar cells gives a much superior energy conversion efficiency compared to the stoichiometric electrode.
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Intrinsic bioconjugation for site-specific protein PEGylation at N-terminal serine

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6909-6912
DOI: 10.1039/C4CC01928H, CommunicationPaul M. Levine, Timothy W. Craven, Richard Bonneau, Kent Kirshenbaum
A rapid and site-specific method to introduce PEG chains onto the N-terminus of peptides and proteins through native amide linkages at serine is described.
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Near infra-red emission from a mer-Ru(II) complex: consequences of strong [sigma]-donation from a neutral, flexible ligand with dual binding modes

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6846-6849
DOI: 10.1039/C3CC49880H, CommunicationAmlan K. Pal, Nelsi Zaccheroni, Sebastiano Campagna, Garry S. Hanan
A mer-Ru(II)-polypyridyl complex containing a strong [sigma]-donating tridentate ligand with extended bite angle exhibits room temperature luminescence in NIR-region (901 nm), which is a consequence of an increased 3MLCT-3MC energy gap.
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Cationic amphiphilic non-hemolytic polyacrylates with superior antibacterial activity

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7071-7074
DOI: 10.1039/C4CC01583E, CommunicationAshish Punia, Edward He, Kevin Lee, Probal Banerjee, Nan-Loh Yang
Antibacterial polyacrylate copolymers of 6-carbon and 2-carbon spacer arm cationic counits with composition sensitivity on selectivity.
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CaH2-assisted low temperature synthesis of metallic magnetic nanoparticle-loaded multiwalled carbon nanotubes

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6866-6868
DOI: 10.1039/C4CC01592D, CommunicationLiis Seinberg, Shinpei Yamamoto, Masahiko Tsujimoto, Yoji Kobayashi, Mikio Takano, Hiroshi Kageyama
Ni or Fe nanoparticle-loaded multiwalled carbon nanotubes can be prepared even at 400 [degree]C by simply heating metal organic salts with CaH2.
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Chemically regulating Rh(I)-Bodipy photoredox switches

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6850-6852
DOI: 10.1039/C4CC01345J, CommunicationA. M. Lifschitz, R. M. Young, J. Mendez-Arroyo, V. V. Roznyatovskiy, C. M. McGuirk, M. R. Wasielewski, C. A. Mirkin
Photoinduced electron transfer from a Rh(I) center to an excited Bodipy unit within coordination complexes is regulated in situ by affecting the redox potential of either moiety thought the introduction of neutral and anionic ligands.
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Supramolecular colloidosomes: fabrication, characterisation and triggered release of cargo

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7048-7051
DOI: 10.1039/C4CC01479K, CommunicationGodwin Stephenson, Richard M. Parker, Yang Lan, Ziyi Yu, Oren A. Scherman, Chris Abell
Supramolecular colloidosomes are self-assembled at the interface of microfluidic droplets via a cucurbit[8]uril host-guest complex, allowing for triggered release of aqueous cargo.
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Near-infrared light triggerable deformation-free polysaccharide double network hydrogels

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7052-7055
DOI: 10.1039/C4CC02216E, CommunicationRong-Cong Luo, Zhen Han Lim, Wei Li, Peng Shi, Chia-Hung Chen
Agarose/alginate double network hydrogels composited with polypyrrole (PPy) nanoparticles enable formation of light-triggerable deformation-free materials.
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Phosphine catalyzed reduction of CO2 with boranes

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7007-7010
DOI: 10.1039/C4CC02103G, CommunicationTongen Wang, Douglas W. Stephan
Phosphine is shown to catalyse the reaction of CO2 with 9-BBN to give mixtures of HCO2(B(C8H14)) 3, H2C(OB(C8H14))24 and MeOB(C8H14) 5; at 0.02 mol% of tBu3P 5 is obtained in 98% yield at 60 [degree]C with TON of almost 5500 and a TOF of 170.
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Asymmetric synthesis of functionalized cyclohexanes bearing five stereocenters via a one-pot organocatalytic Michael-Michael-1,2-addition sequence

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6853-6855
DOI: 10.1039/C4CC01885K, CommunicationPankaj Chauhan, Gregor Urbanietz, Gerhard Raabe, Dieter Enders
A highly stereoselective one-pot organocatalytic procedure involving a Michael-Michael-1,2-addition sequence provides an efficient access to fully substituted cyclohexanes bearing five contiguous stereocenters in good yields and excellent stereoselectivities.
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Selective P4 activation by an organometallic nickel(I) radical: formation of a dinuclear nickel(II) tetraphosphide and related di- and trichalcogenides

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7014-7016
DOI: 10.1039/C4CC02601B, CommunicationStefan Pelties, Dirk Herrmann, Bas de Bruin, Frantisek Hartl, Robert Wolf
The reaction of white phosphorus with a mononuclear cyclopentadienyl nickel(I) complex affords a nickel-substituted tetraphospha[1.1.0]bicyclobutane in a highly selective fashion.
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Label-free, optical sensing of the supramolecular assembly into fibrils of a ditryptophan-DNA hybrid

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6863-6865
DOI: 10.1039/C4CC02631D, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Nidhi Gour, Jancy Nixon Abraham, Mohamed Chami, Axel Castillo, Sandeep Verma, Corinne Vebert-Nardin
Label free optical sensing of the formation of WW-DNA fibrillar structures.
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Reversible single-chain selective point folding via cyclodextrin driven host-guest chemistry in water

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7056-7059
DOI: 10.1039/C4CC03218G, CommunicationJohannes Willenbacher, Bernhard V. K. J. Schmidt, David Schulze-Suenninghausen, Ozcan Altintas, Burkhard Luy, Guillaume Delaittre, Christopher Barner-Kowollik
A new platform technology for the reversible folding of single polymer chains in aqueous environment on the basis of cyclodextrin (CD) host-guest chemistry and controlled radical polymerization protocols is introduced.
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Photoresponsive supramolecular self-assembly of monofunctionalized pillar[5]arene based on stiff stilbene

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7001-7003
DOI: 10.1039/C4CC02760D, CommunicationYuan Wang, Jiang-Fei Xu, Yu-Zhe Chen, Li-Ya Niu, Li-Zhu Wu, Chen-Ho Tung, Qing-Zheng Yang
We reported a photoresponsive monofunctionalized pillar[5]arene based on stiff stilbene. Z-1 tends to form self-complexing [1]pseudorotaxanes and [c2] daisy chains, whereas E-1 forms supramolecular polymers.
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