Archive for the ‘Hot Article’ Category

Protecting marble monuments

Chemistry World has highlighted, in a recent article, work published in NJC by Dr Massimiliano Arca (Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Italy) and his colleagues. The authors have made a new oxamate salt that could help protect monuments from weathering. In their study, they show that the introduction of structural modifications on the oxamate anion provides a promising tool for the development of protective agents for calcareous stones.

Restoration-of-marble_DSC_0082_630m

The treatment was tested on marble statues by Giuseppe Maria Sartorio in the Monumental Cemetery of Bonaria in Cagliari, Sardinia © Paola Meloni

You can access the original NJC article:
Oxamate salts as novel agents for the restoration of marble and limestone substrates: case study of ammonium N-phenyloxamate
Laura Maiore, M. Carla Aragoni, Gianfranco Carcangiu, Ombretta Cocco, Francesco Isaia, Vito Lippolis, Paola Meloni, Arianna Murru, Alexandra M. Z. Slawin, Enrica Tuveri, J. Derek Woollins and Massimiliano Arca.
New J. Chem., 2016, Advance Article. DOI: 10.1039/C5NJ02505B.

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

Origin of Life article in NJC highlighted in Chemistry World

The Chemistry World article Study probes role of chemical corruption in origin of life written by Heather Powell covers a recently published NJC article by Prof. Lindsey. Find out why using pure compounds might not always be the best strategy.

PrebioticChemistry_shutterstock_120155071_630m

You can also access the original article by Prof. Jonathan Lindsey (North Carolina State University) and his colleagues:

Complexity in structure-directed prebiotic chemistry. Effect of a defective competing reactant in tetrapyrrole formation
Richard M. Deans, Vanampally Chandrashaker, Masahiko Taniguchi and Jonathan S. Lindsey.
New J. Chem., 2015, Advance Article. DOI: 10.1039/C5NJ01474C.

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

Capture of carbon dioxide by conjugated microporous polymers

Towards the global efforts to reduce carbon emission, carbon dioxide capture is currently being investigated as a potential strategy towards this goal.

Conjugated microporous polymers (CMPs) as a sub-family of microporous organic polymers (MOPs) are good candidates for CO2 capture because of the wide-ranging flexibility in the choice and design of components and the available control of pore parameters.

Dr Renqiang Yang and his colleagues (researchers at Chinese Academy of Science, University of Chinese Academy of Science and Taiwan National Central University) designed and synthesized three phospine oxide-based microporous polymers TEPO 1-3 owning strong affinity for CO2. The effects of the rigid length and fuctionalization of the monomer skeleton on the performance of porous materials has been investigated. Although the BET (Brunauer-Emmett-Teller) surface area of the TEPOs are less than 600 m2 g-1, the three polymers exhibit relatively high sorption abilities for CO2 (8.40 wt%) and ultrahigh hydrogen uptake (1.02 wt% at 77K/1.0 bar) compared to materials with similar BET surface areas. Interestingly, the polymers obtained exhibit remarkable performance in separating CO2 over CH4 as the selectivity of CO2/CH4 is a high as 15.5 at 273K.

This work reveals clearly that the gas uptake capacity of materials is highly depending on the length of rigid skeleton and the modification of functional groups in the monomer structure.

To find out more, read the full paper, which is free to access for a period of 4 weeks:

Phosphine oxide-based conjugated microporous polymers with excellent CO2 capture properties:  Shanlin Qiao, Wei Huang, Zhengkun Du, Xianghui Chen, Fa-Kuen Shieh and   Renqiang Yang; New J. Chem., 2014; DOI: 10.1039/C4NJ01477D

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

Hot Article: Dye Hard

covalent modification

Industrial printing and fabric-dying processes generate vast amounts of wastewater. The removal of these industrial dyes, many of which are harmful to both aquatic and human health, is mandatory.

In this NJC paper, Jianyong Zhang, Cheng-Yong Su and co-workers (Sun Yat-Sen University, Guangzhou, China) report a method for generating robust and mechanically stable nanotubes by modification of a supramolecular gel via a covalent capture reaction.

The surface of the resulting structure is cationic, allowing for the effective and selective adsorption of anionic dyes over cationic or neutral species. The authors also report that the materials can be reused for dye capture without losses in their capture ability.

 To find out more, read the full article, which is free to access for of 4 weeks:

Surface modification of supramolecular nanotubes and selective guest capture
Minjuan Lin, Haoliang Liu, Philip W. Miller, Jianyong Zhang and Cheng-Yong Su
New J. Chem., 2014, DOI: 10.1039/C4NJ00445K

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

Hot Article: The Shining Film

Photoluminescent, lanthanide-containing, organic-inorganic hybrid materials find applications in various fields, such as: fluorescent biology, fluoroimmunoassays, NIR-emitting probes and amplifiers for optical communications.

Transparent thin films

 

In this NJC article, Ji-Na Hao and Bing Yan (Tongji University, Shanghai) report the preparation of new polymer thin films co-doped with lanthanide complexes and zeolite A. The lanthanide complexes are embedded into the cages of the zeolite, leading to host–guest materials with markedly enhanced thermal- and photo-stabilities.

All the materials are transparent and maintain the luminescent properties that are characteristic of lanthanide materials, emitting light with tuneable colours depending on the lanthanide used.

 

To find out more, read the full paper, which is free to access for a period of 4 weeks:

Ji-Na Hao and  Bing Yan
New J. Chem., 2014,  DOI: 10.1039/C4NJ00466C
Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

Hot article: Sub-nanomolar arsernate sensing

 Arsenic is a notoriously poisonous element and arsenate (HAsO42-) contamination of drinking water is a problem that affects millions of people worldwide.

In this NJC Letter, Debasis Das (The University of Burdwan, India) and Jesús Sanmartín Matalobos (Universidade de Santiago de Compostela, Spain) present a Mn(II) complex that forms intermolecular hydrogen bonds with HAsO42-, leading to higher molecular rigidity and fluorescence enhancement. This new “turn-on” fluorescent probe allows both the quantification of the HAsO42- anion in aqueous media and its detection in contaminated living cells under microscope. The authors were able to measure HAsO42- concentrations in the sub-nanomolar range, far below the World Health Organization’s standard for drinking water.



Interested in reading further? Why not download the full article now, FREE to access for a period of 4 weeks!

2-(2-Pyridyl) benzimidazole based ternary Mn(II) complex as arsenate selective turn-on fluorescence probe: ppb level determination and cell imaging studies
D. Das, S. Das, A. Banerjee, S. Lohar, B. Sarkar, S. K. Mukhopadhyay, J. Sanmartin and A. Sahana 
New J. Chem., 2014, DOI: 10.1039/C3NJ01514A.

 

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

Hot article: N-doped titanium dioxide for Li-ion batteries

In their NJC paper, George Hasegawa and co-workers (Kyoto University, Japan) demonstrate facile synthesis of hierarchically porous N-doped TiO2 and applications to the anode of Li-ion batteries.

The precursor titanium-based hybrid gels were prepared by crosslinking titanium alkoxide with ethylenediamine in a non-hydrolytic sol-gel route which leads to TiO2 homogeneously doped with a high amount of nitrogen. The combination of N-doping into TiO2 and hierarchically porous structure effectively improves electrode performance; the resultant N-doped anatase showed good discharge capacities higher than the capacity of conventional anatase electrodes.

Synthesis and Electrochemical Performance of Hierarchically Porous N-doped TiO2 for Li-ion Batteries
George Hasegawa, Tatsuya Sato, Kazuyoshi Kanamori, Kazuki Nakanishi and Takeshi Abe  
New J. Chem., 2014, DOI: 10.1039/C3NJ01332D

Interested in reading further? Why not download the full article now, FREE to access for a period of 4 weeks!

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

Fluorescent carbon dots from office waste printer paper

Professor Boxue Feng and his co-workers from Lanzhou University in China present a creative idea for the recycling of waste paper.

In their NJC Letter, they report a simple synthesis of water-soluble, fluorescent carbon dots (CDs) from waste paper as the carbon source via hydrothermal process at 180°C. They showed that the as-prepared CDs exhibit strong luminescence properties, good photostability, high photoluminescence quantum yield and fairly low toxicity. The green method described in this study indicates the potential applications of such prepared CDs in the field of bio-imaging.

Read the article now:
Simple one-step synthesis of water-soluble fluorescent carbon dots from waste paper

By Jumeng Wei, Xin Zhang, Yingzhuo Sheng, Jianmin Shen, Peng Huang, Shikuan Guo, Jiaqi Pan, Bitao Liu and Boxue Feng ; New J. Chem., 2014, Advance Article; DOI: 10.1039/C3NJ01325A, Letter

Interested in reading further? Why not download the full article now, FREE to access for a period of 4 weeks!

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

Hot articles for January

Here are the latest Hot Articles published in NJC, recommended by referees. All are free to access for next 4 weeks!

Using gel morphology to control pore shape by Jonathan A. Foster, David W. Johnson, Mark-Oliver M. Pipenbrock and Jonathan W. Steed ; New J. Chem., 2014. DOI: 10.1039/C3NJ01295F, Paper

Alkyl substituent effects in photochemical and thermal reactions of photochromic thiophene-S,S-dioxidized diarylethenes by Hiroaki Shoji, Daichi Kitagawa and Seiya Kobatake; New J. Chem., 2014; DOI: 10.1039/C3NJ01246H

Enhancement of hydroxyl radical generation of a solid state photo-Fenton reagent based on magnetite/carboxylate-rich carbon composites by embedding carbon nanotubes as electron transfer channels by Tingting Han, Lingling Qu, Zhijun Luo, Xiangyang Wu and Daoxiao Zhang ; New J. Chem., 2014; DOI: 10.1039/C3NJ00959A

Synthesis and optoelectronic properties of phenylenevinylenequinoline macromolecules by Reyes Flores-Noria, Rosa Vázquez, Eduardo Arias, Ivana Moggio, Marlene Rodríguez, Ronald F. Ziolo, Oliverio Rodríguez, Dean R. Evans and Carl Liebig; New J. Chem., 2014; DOI: 10.1039/C3NJ01193C

Recoverable Cu/SiO2 composite-catalysed click synthesis of 1,2,3-triazoles in water media by Cátia Schwartz Radatz, Liliana do Amaral Soares, Estéfano Roberto Vieira, Diego Alves, Dennis Russowsky and Paulo Henrique Schneider; New J. Chem., 2014; DOI: 10.1039/C3NJ01167D

Arsinous acid as a thiol binding group: potential cysteine peptide tagging functionality that binds a single thiol by Xiaofei Liang and Dale G. Drueckhammer; New J. Chem., 2014; DOI: 10.1039/C3NJ01462B

PEDOT nanostructures synthesized in hexagonal mesophases by Srabanti Ghosh, Hynd Remita, Laurence Ramos, Alexandre Dazzi, Ariane Deniset-Besseau, Patricia Beaunier, Fabrice Goubard, Pierre-Henri Aubert, Francois Brisset and Samy Remita; New J. Chem., 2014; DOI: 10.1039/C3NJ01349A

Calcination-influenced interfacial structures and gas-sensing properties of multi-walled carbon nanotube–tin oxide p–n heterojunctions by Yong Jia, Pei-Yun Wu, Yin-Ping Jiang, Qun-Ying Zhang, Shuang-Sheng Zhou, Fang Fang and Dai-Yin Peng; New J. Chem., 2014; DOI: 10.1039/C3NJ01280H

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

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

Interested in reading further? Why not download the full article now, FREE to access for a period of 4 weeks!

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)