Archive for the ‘Hot Article’ Category

Hot article: Glutathione detection using gold nanoparticle assembly

In this NJC paper, Peng Zhang and co-workers (University of Cincinnati, US) have reported the development of a highly sensitive and selective colorimetric detection method for glutathione (GSH) over cysteine (Cys) or homocysteine (Hcy) using gold nanoparticles (AuNPs).

The detection scheme is based on the quasi-stable state of AuNPs in the presence of sodium nitrate and GSH. The significant differences in interparticle forces and the assembly process of AuNPs enable the discrimination of GSH over Cys and Hcy. The presence of GSH can be detected by the naked eye and its concentration determined by UV/Vis spectrometry.

Selective colorimetric detection of glutathione based on quasi-stable gold nanoparticles assembly by Bo Hu, Xian Cao and Peng Zhang New J. Chem., 2013, Advance Article DOI: 10.1039/C3NJ00978E

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New NJC Hot Articles

Here are the latest Hot Articles published in NJC, as recommended by the referees. All are FREE to access for one month, so why not take your pick and have a read now?

A new way to tune relative humidity: by saturated ionic liquid aqueous solutions by Yuanyuan Cao, Yu Chen and Tiancheng Mu ; New J. Chem., 2013, Advance Article; DOI: 10.1039/C3NJ00661A, Paper

Serendipitous synthetic entrée to tetradehydro analogues of cobalamins by Richard M. Deans, Olga Mass, James R. Diers, David F. Bocian and Jonathan S. Lindsey; New J. Chem., 2013, Advance Article; DOI: 10.1039/C3NJ00574G, Paper

Octupolar chimeric compounds built from quinoline caged acetate moieties: a novel approach for 2-photon uncaging of biomolecules by Sébastien Picard, Emilie Genin, Guillaume Clermont, Vincent Hugues, Olivier Mongin and Mireille Blanchard-Desce; New J. Chem., 2013, Advance Article; DOI: 10.1039/C3NJ00833A, Paper

Synthesis of novel Mn3O4 concave octahedral microcrystals and their anomalous magnetic properties by Yong-Xing Zhang and Yong Jia; New J. Chem., 2013, Advance Article; DOI: 10.1039/C3NJ00840A, Letter

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NJC Hot Articles

Here are the latest Hot Articles published in NJC, selected by the journal editorial team. All are free to access for one month, so why not take your pick and have a read now? 

See the selection 

Bromine kinetic isotope effects: insight into Grignard reagent formation by Lukasz Szatkowski, Agnieszka Dybala-Defratyka, Charlie Batarseh, Jochanan Blum, Ludwik Halicz and Faina Gelman ; New J. Chem., 2013, Advance Article; DOI: 10.1039/C3NJ00197K, Letter 

 

Molecularly imprinted La-doped mesoporous titania films with hydrolytic properties toward organophosphate pesticides by Davide Carboni, Luca Malfatti, Alessandra Pinna, Barbara Lasio, Yasuaki Tokudome, Masahide Takahashi and Plinio Innocenzi; New J. Chem., 2013, Advance Article; DOI: 10.1039/C3NJ00291H, Paper 

 

4-Aminoquinoline-1,3,5-triazine: Design, synthesis, in vitro antimalarial activity and docking studies by Hans Raj Bhat, Udaya Pratap Singh, Prashant Gahtori, Surajit Kumar Ghosh, Kabita Gogoi, Anil Prakash and Ramendra K. Singh; New J. Chem., 2013, Advance Article; DOI: 10.1039/C3NJ00317E, Paper 

 

Multi-edge X-ray absorption spectroscopy of thorium, neptunium and plutonium hexacyanoferrate compound by Thomas Dumas, Marie Christine Charbonnel, Iraida A. Charushnikova, Steven D. Conradson, Clara Fillaux, Christoph Hennig, Philippe Moisy, Sébastien Petit, Andreas C. Scheinost, David K. Shuh, Tolek Tyliszczak and Christophe Den Auwer; New J. Chem., 2013, Advance Article; DOI: 10.1039/C3NJ00318C, Paper

 

 

Spiropyran–cholesterol conjugate as a photoresponsive organogelator by Shigehiro Sumiya, Yasuhiro Shiraishi and Takayuki Hirai; New J. Chem., 2013, Advance Article; DOI: 10.1039/C3NJ00322A, Paper 

 

Anion–π interactions in [S4N3]+ rings by Antonio Bauzá, David Quiñonero, Pere M. Deyà and Antonio Frontera; New J. Chem., 2013, Advance Article; DOI: 10.1039/C3NJ00424D, Paper 

 

  

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Antifungal activity of phosphonium ionic liquids

Due to their toxic nature the ionic liquids became an interesting subject of development for new applications.

In this NJC paper quaternary phosphonium ionic liquids are discussed in light of their potential use as an antifungal compounds. The authors Diego O. Hartmann and Cristina Silva Pereira (University  of Lisbon, Portugal) aimed this paper at investigating toxicity of several alkylphosphonium chlrorides versus a fungus, Aspergillus nidulans at a molecular level. They describe the use of qRT-PCR to analyse the expression of Aspergillus nidulans genes after exposure to alkyltributylphosphonium chlorides. The results indicate cell wall damage as the common mechanism of toxicity amongst these ionic liquids, while plasma membrane permeabilisation is dependent on the alkyl substituent length. The work provides an important basic insight to apply phosphonium type ionic liquids as an antifungal medicine.

A molecular analysis of the toxicity of alkyltributylphosphonium chlorides in Aspergillus nidulans by Diego O. Hartmann and Cristina Silva Pereira , New J. Chem., 2013, 37, 1569-1577, DOI: 10.1039/C3NJ00167A

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Hot article: Green Giant

Heterocyclic N-oxides are ubiquitous protecting groups, auxiliary agents, oxidants, catalysts, surrogates for heterocyclic boronic acids or ligands in metal complexes. In addition, pyridine N-oxide derivatives have been recently reported to represent a new class of anti-HIV compounds. In this NJC letter, Wei Zhao and Chunxia Yang (Nanyang Normal University, China) report an effective and green procedure for pyridine oxidation using the large Δ-Na8HPW9O34 polyoxometalate as catalyst. In this system, reactions were carried out in water at room temperature with hydrogen peroxide as oxidant. The catalyst could be recovered and reused several times without obvious loss of activity.

“A green catalytic procedure for oxidation of pyridines catalyzed by a lacunary polyoxometalate in water at room temperature” Wei Zhao and Chunxia Yang, New J. Chem., 2013, Advance Article. DOI: 10.1039/C3NJ00149K (Letter).

 

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Photocurrent response of strontium titanate films decorated with carbon quantum dots

In this NJC Hot paper Chinese researchers (Soochow University and Jiangsu University) describe a facile route for the fabrication of porous and solid SrTiO3 films by a template-free hydrothermal method using TiO2 NTs precursor and loading CQDs on the SrTiO3 surface by electrodeposition. As a result, the CQDs–SrTiO3 is responsive under near NIR irradiation owing to the energy upconversion ability of the CQDs. Based on the their results, a possible electron–hole transfer mechanism was also assumed.

Enhanced photoelectrochemical response in SrTiO3 films decorated with carbon quantum dots by Fang Wang, Yang Liu, Zheng Ma, Haitao Li, Zhenhui Kang and Mingrong Shen; New J. Chem., 2013, Advance Article; DOI: 10.1039/C2NJ40988G, Letter

Interested to know more? Why not read the full article now and let us know your thoughts and comments below!

This Hot Article will be free to access for a period of 4 weeks.

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Hot article: Highway to Gel

In this NJC letter, Christine Gérardin-Charbonnier and co-workers (Université de Lorraine, Vandoeuvre-Les-Nancy, France) report a supramolecular hydrogel resulting from the mixture of a cationic pseudopeptide (beta-AlaHisC8) and lauric acid in water at pH 8.5. The subsequent thermo-responsive aggregate displays a lamellar structure, which is stabilized by strong intermolecular hydrogen bonds and hydrophobic interactions.

This hydrogel could be a promising candidate for original biocompatible formulations in cosmetics or pharmaceuticals.

“A supramolecular hydrogel based on an original pseudopeptidic catanionic surfactant”

Firmin Obounou Akong,  Andreea Pasc,  Mélanie Emo and Christine Gérardin-Charbonnier

New J. Chem., 2013, Advance Article, DOI: 10.1039/C2NJ40960G.

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Blue-shift in Bi-impregnated mesoporous silicas

In this NJC Hot Article, Thomas Maschmeyer and his colleagues (University of Sydney and University of New South Wales, Australia) report on the incorporation of bismuth in TUD-1-type mesoporous silicas. These materials were prepared with different Bi loadings and the silicas were fully characterized. The most interesting finding is the unprecedented blue shift observed in the diffuse reflectance that is attributed to different species of Bi.

Interested in reading further?  Why not read by accessing the full article now…

Unprecedented blue-shift in bismuth oxide supported on mesoporous silica by Antony J. Ward, Anne M. Rich, Anthony F. Masters and Thomas Maschmeyer; New J. Chem., 2013, Advance Article, DOI: 10.1039/C2NJ40847C, Paper

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Hot Article: One-pot pyrolytic synthesis of C-N codoped titania

In this NJC paper, Liang Li (School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China) and Jianlin Shi (Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China) et al. report a simple but efficient, controlled thermal decomposition approach to fabricate polycrystalline mesoporous C-N-codoped anatase TiO2.

The prepared material possesses a high surface area and extraordinary high photocatalytic degradation properties under visible irradiation.

One-pot pyrolytic synthesis of C–N-codoped mesoporous anatase TiO2 and its highly efficient photo-degradation properties by Liang Li, Jingjing Shi, Gengnan Li, Yinyin Yuan, Yongsheng Li, Wenru Zhao and Jianlin Shi New J. Chem., 2012, Advance Article DOI: 10.1039/C2NJ40901A

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Hot wheels: strapped porphyrin-based rotaxanes

Mechanically interlocked architectures such as rotaxanes and catenanes are prime candidates for the construction of molecular machines and the fabrication of molecular electronic devices. 

In this NJC paper, Kathleen Mullen and co-workers (Queensland University of Technology, Brisbane, Australia) report a “click” methodology towards bipyridinium porphyrin [2]rotaxanes. An X-ray study of the strapped zinc metalloporphyrin revealed that the wheel adopts a 1-dimensional coordination polymer arrangement in the solid state, in which an oxygen atom in the strap of one macrocycle is coordinated to the zinc metal center in an adjacent porphyrin ring. 

Future work will investigate the photo- and electro-chemical properties of these interlocked architectures.

“New approaches to the synthesis of strapped porphyrin containing bipyridinium [2]rotaxanes”
Victoria Raymont, Hannah Wilson, Michael Pfrunder, John C. McMurtrie and Kathleen M. Mullen
New J. Chem., 2013, Advance Article, DOI:10.1039/c2nj40762k.

Interested in reading further?  Why not read by accessing the full article now!  These “Hot articles” will be FREE to access for a period of 4 weeks. 

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