Archive for October, 2012

NJC Poster Prize awarded at Chirality conference

 

Dr Flavia Pop (University Angers)

Dr Flavia Pop

At the recent Journées André Collet de la Chiralité conference, the jury selected Dr Flavia Pop for her poster entitled “Hierarchical Self-Assembly of Chiral C3-Symmetrical Tetrathiafulvalenes”. Flavia, who is now a teaching/research assistant at the University of Angers, carried out this work in the group of Narcis Avarvari in the Moltech Laboratory, in collaboration with the group of David Amabilino in Barcelona and with the contribution of Mathieu Linares at the Royal Institute of Technology in Stockholm.

Her winning poster presents compounds of C3 symmetry based on electroactive TTF grafted onto a 1,3,5-tris(amido-2,2’-bipyridine-amido)benzene core. Stereogenic centres attached to the TTF units provide self-assembled homochiral architectures (see Figure 1), like helical aggregates of preferential helicity twist. Different chiral alkyl branches were used (isopentyl, citronellyl and dihydrocitronellyl), leading to the formation of fibres or croissants whose helicity was connected with the nature of the alkyl chain, its stereochemistry and the employed conditions.

 

Self assembly of a TTF-grafted C3 core

Figure 1. Self assembly of a TTF-grafted C3 core

Flavia obtained her Ph.D. degree in 2009 from the Universities of Babes-Bolyai, Cluj-Napoca (Romania) and Angers (France) under the joint supervision of Prof. Ion Grosu and Dr. Jean Roncali. She has continued her research since then at the University of Angers in the field of molecular materials based on electroactive  tetrathiafulvalene as the donor in radical cation salts, covalent donor-acceptor systems and chiral disk-shape molecules.

Congratulations to Flavia for her NJC Poster Prize from the NJC team!


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Top ten most accessed articles in September

This month sees the following articles in New Journal of Chemistry that are in the top ten most accessed:-

A visible light excitable “on–off” and “green–red” fluorescent chemodosimeter for Ni2+/Pb2+ 
Lina Wang ,  Mingming Yu ,  Zhenting Liu ,  Wanying Zhao ,  Zhanxian Li ,  Zhonghai Ni ,  Changchun Li and Liuhe Wei  
New J. Chem., 2012,36, 2176-2179 DOI: 10.1039/C2NJ40597K     

Preparation of graphene–TiO2 composites with enhanced photocatalytic activity 
Kangfu Zhou ,  Yihua Zhu ,  Xiaoling Yang ,  Xin Jiang and Chunzhong Li  
New J. Chem., 2011,35, 353-359 DOI: 10.1039/C0NJ00623H     

A donor–acceptor–donor (D–A–D) molecule based on 3-alkoxy-4-cyanothiophene and dithienopyrrole units as active material for organic solar cells 
Ali Yassin ,  Gurunathan Savitha ,  Philippe Leriche ,  Pierre Frère and Jean Roncali  
New J. Chem., 2012,36, 2412-2416 DOI: 10.1039/C2NJ40513J     

Design and synthesis of sulfobetainic diketopyrrolopyrrole (DPP) laser dyes 
Soumyaditya Mula ,  Delphine Hablot ,  Krishna K. Jagtap ,  Elodie Heyer and Raymond Ziessel  
New J. Chem., 2012, Advance Article DOI: 10.1039/C2NJ40569E     

MOFs, MILs and more: concepts, properties and applications for porous coordination networks (PCNs) 
Christoph Janiak and Jana K. Vieth  
New J. Chem., 2010,34, 2366-2388 DOI: 10.1039/C0NJ00275E     

A bis(rhodamine)-based highly sensitive and selective fluorescent chemosensor for Hg(ii) in aqueous media 
Rui Han ,  Xian Yang ,  Di Zhang ,  Min Fan ,  Yong Ye and Yufen Zhao 
New J. Chem., 2012,36, 1961-1965 DOI: 10.1039/C2NJ40638A     

CdS–Graphene nanocomposite: synthesis, adsorption kinetics and high photocatalytic performance under visible light irradiation 
Shugang Pan and Xiaoheng Liu 
New J. Chem., 2012,36, 1781-1787 DOI: 10.1039/C2NJ40301C    

One-pot hydrothermal synthesis of graphene quantum dots surface-passivated by polyethylene glycol and their photoelectric conversion under near-infrared light 
Jianhua Shen ,  Yihua Zhu ,  Xiaoling Yang ,  Jie Zong ,  Jianmei Zhang and Chunzhong Li  
New J. Chem., 2012,36, 97-101 DOI: 10.1039/C1NJ20658C     

One-step ultrasonic synthesis of fluorescent N-doped carbon dots from glucose and their visible-light sensitive photocatalytic ability 
Zheng Ma ,  Hai Ming ,  Hui Huang ,  Yang Liu and Zhenhui Kang  
New J. Chem., 2012,36, 861-864 DOI: 10.1039/C2NJ20942J     

Outer sphere hydrogenation catalysis 
Odile Eisenstein and Robert H. Crabtree  
New J. Chem., 2013, Advance Article DOI: 10.1039/C2NJ40659D     

Why not take a look at the articles today and blog your thoughts and comments below.

Fancy submitting an article to New Journal of Chemistry? Then why not submit to us today or alternatively email us your suggestions.

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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?

Precursors for pyromellit-bridged silica sol–gel hybrid materials by Stefan Pfeifer, Anke Schwarzer, Dana Schmidt, Erica Brendler, Michael Veith and Edwin Kroke, New J. Chem., 2012, Advance Article, DOI: 10.1039/C2NJ40538E, Paper

Dual emitting Langmuir–Blodgett films of cationic iridium complexes and montmorillonite clay for oxygen sensing by Kazuya Morimoto, Takahiro Nakae, Keishi Ohara, Kenji Tamura, Shin-ichi Nagaoka and Hisako Sato, New J. Chem., 2012, Advance Article, DOI: 10.1039/C2NJ40351J, Paper

Self-assembly of graphene oxide on the surface of aluminum foil by Qingye Liu, Meng He, Xiaojuan Xu, Lina Zhang and Junping Yu, New J. Chem., 2012, Advance Article, DOI: 10.1039/C2NJ40493A, Paper

Photochromism of novel chromenes constrained to be part of [2.2]paracyclophane: remarkable ‘phane’ effects on the colored o-quinonoid intermediates by Jarugu Narasimha Moorthy, Susovan Mandal and Amrit Kumar, New J. Chem., 2013, Advance Article, DOI: 10.1039/C2NJ40575J, Paper

Mixed-solvothermal synthesis, structures, luminescent and surface photovoltage properties of four new transition metal diphosphonates with a 3D supramolecular structure by Hui Tian, Yanyu Zhu, Zhen-Gang Sun, Fei Tong, Jiang Zhu, Wei Chu, Shou–Hui Sun and Ming–Jing Zheng, New J. Chem., 2012, Accepted Manuscript, DOI: 10.1039/C2NJ40737J, Paper

 

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Infection sensor for wound dressings

Scientists in Australia have developed an optical sensor to be used in wound dressings that signals when a patient’s wound is inflamed or infected.

The sensor, made from polymer-grafted porous silicon, detects a small increase in temperature, which is a classic indication of wound infection. Early diagnosis of infection could be achieved by monitoring the reflectance spectrum of the sensor.

Above a critical temperature value, the polymer changes from a hydrophilic coil to a hydrophobic globule, resulting in changes in its optical properties which are detected by reflectance spectroscopy. 

To read more about this work, download the article now…

Study of the Optical Properties of Thermoresponsive Polymer Grafted from Porous silicon scaffolds
S Pace et al., New J. Chem., 2012, DOI: 10.1039/c2nj40693d

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Top ten most accessed articles in August

This month sees the following articles in New Journal of Chemistry that are in the top ten most accessed:-

Rhodamine-based bis-sulfonamide as a sensing probe for Cu2+ and Hg2+ ions 
Kumaresh Ghosh ,  Tanmay Sarkar ,  Asmita Samadder and Anisur Rahman Khuda-Bukhsh  
New J. Chem., 2012,36, 2121-2127 DOI: 10.1039/C2NJ40391A  

Highly efficient polymer solar cells based on poly(carbazole-alt-thiophene-benzofurazan) 
Bin Zhang ,  Xiaowen Hu ,  Minquan Wang ,  Huiping Xiao ,  Xiong Gong ,  Wei Yang and Yong Cao 
New J. Chem., 2012,36, 2042-2047 DOI: 10.1039/C2NJ40309A  

Selective and competitive cysteine chemosensing: resettable fluorescent “turn on” aqueous detection via Cu2+ displacement and salicylaldimine hydrolysis 
Olga G. Tsay ,  Kang Mun Lee and David G. Churchill  
New J. Chem., 2012,36, 1949-1952 DOI: 10.1039/C2NJ40387K  

One-pot hydrothermal synthesis of graphene quantum dots surface-passivated by polyethylene glycol and their photoelectric conversion under near-infrared light 
Jianhua Shen ,  Yihua Zhu ,  Xiaoling Yang ,  Jie Zong ,  Jianmei Zhang and Chunzhong Li  
New J. Chem., 2012,36, 97-101 DOI: 10.1039/C1NJ20658C  

Synthesis and applications of new triphenylamine dyes with donor–donor–(bridge)–acceptor structure for organic dye-sensitized solar cells 
Chun Sakong ,  Hae Joong Kim ,  Se Hun Kim ,  Jin Woong Namgoong ,  Jong Ho Park ,  Jang-Hyun Ryu ,  Boeun Kim ,  Min Jae Ko and Jae Pil Kim  
New J. Chem., 2012,36, 2025-2032 DOI: 10.1039/C2NJ40374A  

MOFs, MILs and more: concepts, properties and applications for porous coordination networks (PCNs) 
Christoph Janiak and Jana K. Vieth  
New J. Chem., 2010,34, 2366-2388 DOI: 10.1039/C0NJ00275E  

Reduced graphene oxide supported FePt alloy nanoparticles with high electrocatalytic performance for methanol oxidation 
Zhenyuan Ji ,  Guoxing Zhu ,  Xiaoping Shen ,  Hu Zhou ,  Chaomin Wu and Min Wang  
New J. Chem., 2012,36, 1774-1780 DOI: 10.1039/C2NJ40133A  

Preparation of graphene–TiO2 composites with enhanced photocatalytic activity 
Kangfu Zhou ,  Yihua Zhu ,  Xiaoling Yang ,  Xin Jiang and Chunzhong Li  
New J. Chem., 2011,35, 353-359 DOI: 10.1039/C0NJ00623H  

1,1′-Diamino-5,5′-azotetrazole: a nitrogen rich compound 
Fang Li ,  Xiaomin Cong ,  Zhiming Du ,  Chunlin He ,  Linshuang Zhao and Lingqiao Meng  
New J. Chem., 2012,36, 1953-1956 DOI: 10.1039/C2NJ40109F  

A facile one-pot method for synthesis of low-cost magnetic carbon nanotubes and their applications for dye removal 
Fei Yu ,  Junhong Chen ,  Mingxuan Yang ,  Lu Zhou ,  Lu Jin ,  Chang Su ,  Fanglin Li ,  Lu Chen ,  Zhiwen Yuan ,  Linlin Yu and Jie Ma  
New J. Chem., 2012,36, 1940-1943 DOI: 10.1039/C2NJ40382J  

Why not take a look at the articles today and blog your thoughts and comments below.

Fancy submitting an article to New Journal of Chemistry? Then why not submit to us today or alternatively email us your suggestions.

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Meet our authors of the October issue of NJC

We are pleased to present a selection of our authors of the October issue of NJC. We thank each of them for accepting our invitation and having kindly taken some of their time to answer a few questions for us.

Our first author is Khaleda Banu who is a Postdoctoral Researcher at the University of California San Diego (USA). Her current research interests are mainly focused on the synthesis of metal and semiconductor nanoparticles and their application in the fields of renewable energy and microbial fuel cells. In her NJC paper, Khaleda and co-workers report on how a simple modification to the solid-matrix method could generate large-scale transparent gold nanosheets up to 50 mm in size that are attractive for the development of new biosensors.

When asked what led to the publication of this article at NJC, Khaleda responds: “The present paper is an extension of previous work published in NJC. Our intention was to publish a series of papers on the proposed electroless method for the deposition of various metal nanoparticles which can receive the attention of the interested readers”.

Out of the lab, Khaleda enjoy kid’s gymnastic activities, teaching students and reviewing papers.

If Khaleda could not be a scientist, she would probably like to be an actress or a professional chess player.

Synthesis of large-scale transparent gold nanosheets sandwiched between stabilizers at a solid–liquid interface
by Khaleda Banu and Takayoshi Shimura, New J. Chem., 2012, 36, 2112-2120; DOI: 10.1039/C2NJ40478H.

Our next author is Huanshun Yin, Lecturer at the Shandong Agricultural University (China). Huanshun’s research interests focus on electroanalytical chemistry, electrochemical biosensors and electrochemical immunoassays.

In this issue of NJC, Huanshun has authored the article MicroRNA-21 detection based on molecular switching by amperometry by Yunlei Zhou, Zhaoyan Zhang, Zhenning Xu, Huanshun Yin and Shiyun Ai, New J. Chem., 2012, 36, 1985-1991; DOI: 10.1039/C2NJ40253J. “We developed an assay method that can discriminate complementary base mismatched microRNA sequences. More importantly, this biosensor assay reveals that microRNA-21 is highly expressed in human HeLa cells and in normal human hepatic cells. We think that such a method would be valuable in clinical diagnostics”, explains Huanshun who chooses NJC for publication of this article as NJC is an RSC important international journal.

In his free time, Huanshun loves spending time doing car rides. If Huanshun was not a scientist, he would have been a teacher.

Dyanne Cruickshang is a Postdoctoral Research Fellow at the University of Cape Town (South Africa).

Her current research interest is the beneficiation of both agrochemicals and other active pharmaceutical ingredients using supramolecular methods such as co-crystallisation and cyclodextrin inclusion which has been her focus over the last few years.

In this NJC issue paper, Dyanne and co-authors highlight the ability of highly toxic and persistent agrochemical to form cyclodextrin inclusion complexes. The work presented focuses mainly on the single crystal structure of the complex between dimethylated b-cyclodextrin and endosulfan. It also shows how the potential of cyclodextrins in the agrochemical industry and how these molecules could be used for sequestering the insecticides from contaminated areas.

A solid-state study of the inclusion of endosulfan in native and derivatised cyclodextrins using X-ray diffraction and thermoanalytical methods by Dyanne L. Cruickshank, Susan A. Bourne and Mino R. Caira, New J. Chem., 2012, 36, 2007-2013; DOI: 10.1039/C2NJ40364A.

NJC was chosen as it contains articles spanning a wide spectrum of interests to the scientific community. This journal seemed like an ideal way to demonstrate the relatively new area of cyclodextrin inclusion of agrochemicals and the potential applications of these complexes.”

Cycling, running or swimming along the Cape Peninsula in preparation for various triathlon events are Dyanne’s favourite activities. She also enjoys travelling and trying the local foods. If she could not be a scientist, Dyanne would probably be involved in some sort of teaching career.

Closing this month’s author selection, Marian Davolos is Full Professor at the Sao Paulo State University (Brazil).

Her current research interest is investigating optical properties of inorganic materials. She has authored in this NJC issue the paper Synthesis of a functionalized europium complex and deposition of luminescent Langmuir–Blodgett (LB) films by Renata D. Adati, Felippe J. Pavinatto, Jorge H. S. K. Monteiro, Marian R. Davolos, Miguel Jafelicci and Osvaldo N. Oliveira, New J. Chem., 2012, 36, 1978-1984; DOI: 10.1039/C2NJ40199A. “An anionic europium complex stabilized by and amphiphilic cation was proven amenable to deposit as LB films with relatively intense luminescence and good stability” says Marian.

Out of the lab, Marian’s favorite activity is to grow and to care for orchids and if she was not a scientist, she would be a florist or a gardener.

Marian also says that “To grow and care for plants is fantastic, especially when they give beautiful flowers and fruits. Teaching, lecturing, advising scientific work of students and guiding them to work and to make scientific research part of their life is highly satisfactory compared to growing delicate plants. Renata D. Adati, a co-author in this paper, that is part of her thesis, was one of my specials PhD students.”

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