Chem. Commun.

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An ultrasensitive label-free electrochemical biosensor for microRNA-21 detection based on a 2[prime or minute]-O-methyl modified DNAzyme and duplex-specific nuclease assisted target recycling

21 September, 2014 - 07:17

Chem. Commun., 2014, 50,12375-12377
DOI: 10.1039/C4CC05541A, CommunicationXi Zhang, Dongzhi Wu, Zhijing Liu, Shuxian Cai, Yanping Zhao, Mei Chen, Yaokun Xia, Chunyan Li, Jing Zhang, Jinghua Chen
Based on a highly efficient 2[prime or minute]-O-methyl modified G-quadruplex-hemin DNAzyme and DSN assisted target recycling, a label-free electrochemical biosensor is developed here.
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Detection of multiple mutations in a single codon of genomic DNA

21 September, 2014 - 07:17

Chem. Commun., 2014, 50,12344-12347
DOI: 10.1039/C4CC06220E, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Danishmalik Rafiq Sayyed, Satish Balasaheb Nimse, Keum-Soo Song, Taisun Kim
The controller DNA technology allows the detection of multiple mutations in a single codon of genomic DNA.
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Facile synthesis of polymer and carbon spheres decorated with highly dispersed metal nanoparticles

21 September, 2014 - 07:17

Chem. Commun., 2014, 50,12341-12343
DOI: 10.1039/C4CC05271D, CommunicationNilantha P. Wickramaratne, Mietek Jaroniec
Metal nanoparticle-decorated carbon spheres (mn-CSs) are prepared by combining one-pot hydrothermal synthesis and post-synthesis modification.
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Direct conversion of Cytochrome c spectral shifts to fluorescence using photochromic FRET

21 September, 2014 - 07:17

Chem. Commun., 2014, 50,12333-12336
DOI: 10.1039/C4CC06146B, CommunicationSelen Manioglu, Muge Atis, Mehdi Aas, Alper Kiraz, Halil Bayraktar
Photochromic fluorescence resonance energy transfer was used to determine the oxidation state change of Cytochrome c that modulated the Venus emission.
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H2Me-do2pa: an attractive chelator with fast, stable and inert natBi3+ and 213Bi3+ complexation for potential [small alpha]-radioimmunotherapy applications

21 September, 2014 - 07:17

Chem. Commun., 2014, 50,12371-12374
DOI: 10.1039/C4CC05529B, CommunicationLuis M. P. Lima, Maryline Beyler, Fatima Oukhatar, Patricia Le Saec, Alain Faivre-Chauvet, Carlos Platas-Iglesias, Rita Delgado, Raphael Tripier
H2Me-do2pa was found to be an efficient ligand for the complexation of Bi3+ and proved to be very attractive for its use for RIT applications.
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Bromoform reaction of tertiary amines with N,N-dibromosulfonamides or NBS/sulfonamides

21 September, 2014 - 07:17

Chem. Commun., 2014, 50,12367-12370
DOI: 10.1039/C4CC05578K, CommunicationJie Chen, Yu-Ping Guo, Ming-Hui Sun, Guo-Tao Fan, Ling Zhou
A new bromoform reaction of tertiary amines with N,N-dibromosulfonamides or NBS/sulfonamides has been developed.
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Protein-Based Fluorescent Metal Nanoclusters for Small Molecular Drug Screening

19 September, 2014 - 06:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC06914E, CommunicationYong Yu, Siu Yee New, Jianping Xie, Xiaodi Su, Yen Nee Tan
A facile drug screening method based on synthesizing fluorescent gold nanoclusters inside albumin proteins loaded with small molecular drugs and comparing the relative fluorescence intensities of the resultant gold nanoclusters...
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Novel magnetic nickel telluride nanowires decorated with thorn: Synthesis and their intrinsic peroxidase-like activity for detection of glucose

19 September, 2014 - 06:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC06684G, Communicationlijuan wan, Jin-Huai Liu, Xing-Jiu Huang
The magnetic nickel telluride with thorny nanostructure is directly synthesized for the first time via a hydrothermal method. They were used to detect H2O2 and glucose with a limit of...
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Phosphatase mechanism of bifunctional kinase/phosphatase AceK

19 September, 2014 - 06:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05375C, CommunicationShu Wang, Qingya Shen, Guangju Chen, Jimin Zheng, Hongwei Tan, Zongchao Jia
We have revealed that bifunctional AceK kinase/phosphatase utilizes a stepwise addition-elimination mechanism in its dephosphorylation reaction. This work explains how AceK enables opposite kinase and phosphatase activities with Asp477 and...
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Organocatalytic asymmetric strategies to carbocyclic structures by [gamma]-alkylation-annulation sequences

19 September, 2014 - 06:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC06556E, CommunicationBjarke Skyum Donslund, Kim Soholm Halskov, Lars Astrup Leth, Bruno Matos Paz, Karl Anker Jorgensen
Attractive carbocyclic structures are accessed via a highly regio- and enantioselective aminocatalytic [gamma]-addition of cyclic enals to vinyl phosphonates followed by a one-pot intramolecular Horner-Wadsworth-Emmons reaction. It is also demonstrated...
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A chameleon catalyst for nonheme iron-promoted olefin oxidation

19 September, 2014 - 06:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC06164K, CommunicationShyam Iyer, Maedeh M. Javadi, Yan Feng, Min Young Hyun, Williamson N. Oloo, Cheal Kim, Lawrence Que Jr.
We report the chameleonic reactivity of two nonheme iron catalysts for olefin oxidation with H2O2. In the absence of acetic acid, the catalysts favor the cis-dihydroxylation of electron-poor olefins, but...
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Novel Triarylamine-based Polybenzoxazines with Donor-Acceptor System for Polymeric Memory Devices

19 September, 2014 - 06:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC06385F, CommunicationGuey-Sheng Liou, Lu-Chi Lin, Hung-Ju Yen, Chih-Jung Chen, Chia-Liang Tsai
Novel polybenzoxazines consisting of electron-donating triphenylamine derivatives and electron-withdrawing 4,4׳-diphenyl sulfone moieties were successfully prepared by the thermally induced ring-opening reaction of the corresponding PB precursors and utilized for memory...
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Significant promotion effect of carbon nanotubes on the electrocatalytic activity of supported Pd NPs for ethanol oxidation reaction of fuel cells: The role of inner tubes

19 September, 2014 - 06:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC06185C, CommunicationJin Zhang, Yi Cheng, Shanfu Lu, Lichao Jia, Pei Kang Shen, San Ping Jiang
The inner tubes of carbon nanotubes (CNTs) have significant promotion effect on the electrocatalytic activity of Pd nanoparticles (NPs) on the ethanol oxidation of direct alcohol fuel cells (DAFCs) and...
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Versatile palladium-catalyzed C-H olefination of (hetero)arenes at room temperature

19 September, 2014 - 06:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05827E, CommunicationZhijie She, Yang Shi, Yumin Huang, Yangyang Cheng, Feijie Song, Jingsong You
The room-temperature oxidative C-H/C-H cross-couplings between (hetero)arenes and alkenes, coumarins or quinones have been reported by using a highly electrophilic palladium species [Pd(TFA)2] generated in situ from Pd(OAc)2 and TFA...
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A Luminescent Europium (III)-[small beta]-diketonate complex Hosted in Nanozeolite L as a Turn-On Sensor for Basic Molecules

19 September, 2014 - 06:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05635C, CommunicationHuanrong Li, Yuzhao Zhang, yige Wang, Yanji Wang, Peng Li
The luminescence efficiency of Eu3+-[small beta]-diketonate complexes entrapped within the channels of nanozeolite L is severely decreased by the acid environment in the channels. The neutralization of the acid sites can...
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Live Cell Off-target Identification of Lapatinib Using Ligand-Directed Tosyl Chemistry

19 September, 2014 - 06:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05885B, CommunicationKei Yamaura, Keiko Kuwata, Tomonori Tamura, Yoshiyuki Kioi, Yousuke Takaoka, Shigeki Kiyonaka, Itaru Hamachi
We describe ligand-directed tosyl (LDT) chemistry is applicable to off-target identification in live cells. Lapatinib (Lap)-based LDT reagents labeled not only a receptor tyrosine kinase, HER2, target protein, but also...
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A trio of nanoswitches in redox-potential controlled communication

19 September, 2014 - 06:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC05773B, CommunicationSusnata Pramanik, Soumen De, Michael Schmittel
A potential-controlled two-step bidirectional communication protocol between three nanoswitches is set up, in which ligand followed by metal-ion oxidation drives two subsequent metal ion translocations changing the switching state at each switch.
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Ruthenium-Catalyzed Double-Fold C-H Tertiary Alkoxycarbonylation of Arenes Using Di-tert-butyl Dicarbonate

19 September, 2014 - 06:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05173D, CommunicationXiaohu Hong, Hao Wang, Bingxin Liu, Bin Xu
An efficient ruthenium-catalyzed double-fold C-H bond alkoxycarbonylation of arylpyrimidines and aldimines was developed using commercial available di-tert-butyl dicarbonate as the tertiary esterification reagent, which leads to an efficient access to...
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Tunable self-assembly properties of amphiphilic phosphole alkynylgold(I) complexes through variation of the extent of the aromatic [small pi]-surface at the alkynyl moieties

19 September, 2014 - 06:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC05247A, CommunicationEugene Yau-Hin Hong, Hok-Lai Wong, Vivian Wing-Wah Yam
A new class of amphiphilic phosphole alkynylgold(I) complexes was synthesized and was demonstrated to display sheet-like nanostructures in aqueous DMSO solution.
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MNAzymes provide a universal mechanism for triggering DNAzyme synthesis cascades

19 September, 2014 - 06:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC05919K, CommunicationSimon M. Bone, Alison V. Todd
Herein we utilize target-specific MNAzymes to activate novel, universal primer molecules and trigger DNAzyme signal amplification cascades.
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