Archive for February, 2012

Top ten most accessed articles in January

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

A Ag+-selective ?off?on? probe based on a naphthalimide derivative 
Jun Zhang ,  Chunwei Yu ,  Gang Lu ,  Qiongyao Fu ,  Na Li and Yuxiang Ji  
New J. Chem., 2012, 36, 819-822 DOI: 10.1039/C2NJ20974H  

Thiophene-substituted aza-bodipy as a strategic synthon for the design of near-infrared dyes 
Quentin Bellier ,  Fabrice Dalier ,  Erwann Jeanneau ,  Olivier Maury and Chantal Andraud  
New J. Chem., 2012, 36, 768-773 DOI: 10.1039/C2NJ20943H  

PEG-dendritic block copolymers for biomedical applications 
Ana Sousa-Herves ,  Ricardo Riguera and Eduardo Fernandez-Megia 
New J. Chem., 2012, 36, 205-210 DOI: 10.1039/C2NJ20849K  

Au(i)- and Pt(ii)-N-heterocyclic carbene complexes with picoline functionalized benzimidazolin-2-ylidene ligands; synthesis, structures, electrochemistry and cytotoxicity studies 
Sirsendu Das Adhikary ,  Dipayan Bose ,  Partha Mitra ,  Krishna Das Saha ,  Valerio Bertolasi and Joydev Dinda  
New J. Chem., 2012, 36, 759-767 DOI: 10.1039/C2NJ20928D  

Shape-persistent, ruthenium(ii)- and iron(ii)-bisterpyridine metallodendrimers: synthesis, traveling-wave ion-mobility mass spectrometry, and photophysical properties 
Jin-Liang Wang ,  Xiaopeng Li ,  Carol D. Shreiner ,  Xiaocun Lu ,  Charles N. Moorefield ,  Sreedhar R. Tummalapalli ,  Douglas A. Medvetz ,  Matthew J. Panzner ,  Frank R. Fronczek ,  Chrys Wesdemiotis and George R. Newkome 
New J. Chem., 2012, 36, 484-491 DOI: 10.1039/C2NJ20799K  

Ln(iii)-cored complexes based on boron dipyrromethene (Bodipy) ligands for NIR emission 
Jung Ho Ryu ,  Yu Kyung Eom ,  Jean-Claude G. Bünzli and Hwan Kyu Kim  
New J. Chem., 2012, 36, 723-731 DOI: 10.1039/C2NJ20786A  

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  

Stimuli sensitive amphiphilic dendrimers 
Rajasekhar R. Ramireddy ,  Krishna R. Raghupathi ,  Diego Amado Torres and S. Thayumanavan  
New J. Chem., 2012, 36, 340-349 DOI: 10.1039/C2NJ20879B  

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  

Glycodendrimers as functional antigens and antitumor vaccines 
Tze Chieh Shiao and René Roy  
New J. Chem., 2012, 36, 324-339 DOI: 10.1039/C2NJ20873C  

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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Announcing the 2012 NJC Symposia in China

Three prestigious institutions will be hosting members of the NJC editorial board and two NJC editors for the 2012 NJC Symposium: New Directions in Chemistry, which will be held during the last week of April 2012. Each one-day symposium will feature presentations by the editorial board members, prominent local chemists and the editors.

These symposia are free and open to all interested persons.

Please send an email with your full name, affiliation, status and which symposium you wish to attend by April 15th. This will allow us to welcome you under the best conditions.

Please join us and meet:

Members of the NJC Editorial Board who will be participating in the 2012 NJC Symposia include:
Co-Editor-in-Chief Professor Mir Wais HOSSEINI (University of Strasbourg, France)
Associate Editor Professor Michael SCOTT (University of Florida, USA)
Associate Editor Professor Peter JUNK (Monash University, Australia)
Professor Len BARBOUR (University of Stellenbosch, South Africa)
Professor Debbie CRANS (Colorado State University, USA)
Professor Odile EISENSTEIN (CNRS, Montpellier, France)
Professor Helen HAILES (University College London, UK)
Professor Takashi KATO (University of Tokyo, Japan)
Professor J N MOORTHY (Indian Institute of Technology, India)

NJC Managing Editor Dr Denise PARENT (Montpellier, France) and NJC Assistant Editor Dr Ling PENG (Marseille, France) will also be present.


April 23 at the University of Hong Kong (Host: Professor Vivian YAM)
Guest Speakers: Professors CHE Chi-ming and YANG Dan (University of Hong Kong); Professors JIA Guochen and TANG Ben Zhong (Hong Kong University of Science and Technology)

April 25 at East China University of Science and Technology, Shanghai (Host: Professor QIAN Xuhong)
Guest Speakers: Professor MA Dawei (Shanghai Institute of Organic Chemistry); Professor JIN Guoxin (Fudan University); Professor YANG Yi (ECUST)

April 27 at the Institute of Chemistry, Chinese Academy of Sciences, Beijing (Host: Professor YAO Jiannian)
Guest Speakers: Professor LIU Zhongfan (Peking University); Professors HAN Buxing and ZHANG Deqing (Institute of Chemistry, CAS Beijing)


Full details and the scientific programs will be available soon. Please check this blog in the coming weeks.

We all look forward to meeting you in Hong Kong, Shanghai or Beijing in April!

http://www.ucl.ac.uk/chemistry/staff/academic_pages/helen_hailes
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Meet the NJC team at this year’s conferences & events

Want to meet us? The NJC editors will be travelling all over the world to attend a wide variety of conferences and events in 2012. We will be there to mingle with the scientific community and talk to authors and referees. Why not get in touch if you’re at any of the same events? We look forward to seeing you there.

Below is a chronological list of this year’s events.

March   

April   

  • Prolines & Co.
    02-03 April, Montpellier, France, meet Eva Balentova, Deputy Editor
 
  •  PACA SCF
    16-17 April, Marseille, France, meet Ling Peng, Assistant Editor
 
 
  • NJC Symposia in China
    23 April in Hong Kong, 25 April in Shanghai, 27 April in Beijing meet Denise Parent, Editor & Ling Peng, Assistant Editor.
    Full details will be posted shortly on the NJC blog so please check back soon.  

June   

 July   

  • MolMat
    03-06 July, Barcelona, Spain, meet Yannick Guari, Assistant Editor
 
 
 September   

Whether you see us attending, exhibiting or participating in this year’s conferences, we would love the opportunity to meet you. Do say hello!

For more information, please contact Dr. Denise Parent/Dr. Eva Balentova at the NJC Editorial Office.

Please also take time to visit our NJC website to check regularly for the latest updates.

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HOT Articles: NJC’s latest selection!

Potentiometry to study the reversible redox chemistry of polyoxometalates.

In this Hot article, Alisa Rudnitskaya and co-workers (Aveiro University, Portugal) report on the use of potentiometric chemical sensors for the study of redox reactions of vanadium containing Keggin-type polyoxomolybdates, H5[PVV2Mo10O40]11H2O and K4[PVVMo11O40]6H2O.

Variations in the concentrations of vanadyl ions (VO2+) during the redox reactions of POMs were followed in the real-time. Apparently, release of vanadyl from the coordination sphere of reduced di-substituted POM occurred as the response to the presence of molecular oxygen. The use of potentiometry for this purpose is innovative, and the work provides an additional perspective in ongoing efforts to understand the reversible redox chemistry of these complexes when used in catalytic aerobic oxidation.

Studies on the redox turnover of polyoxometalates using potentiometric chemical sensors by Alisa Rudnitskaya,  Jose A. F. Gamelas,  Dmitry V. Evtuguin and Andrey Legin; New J. Chem., 2012, Advance Article; DOI: 10.1039/C2NJ21053C, Paper

Sensing properties of NiO-doped SnO2 polyhedra

The next Hot article provided by Chinese researchers (Z. Lou, L. Wang, T. Fei and T.  Zhang, Jilin University) describes the preparation, characterisations and application novel NiO-doped SnO2 polyhedra.

According to the authors, this hydrothermal synthesis of uniform NiO-doped SnO2 polyhedra is a facile, mild, and low-cost method to fabricate micro- and nanostructures. The application of the material in the field of resistive sensors for the revelation of ethanol has also been proposed: the main result is an enhancement of the response and recovery times in comparison with pure SnO2 based sensors. The effect of NiO doping on the response and response–recovery time towards ethanol is also discussed.

Enhanced ethanol sensing properties of NiO-doped SnO2 polyhedra by Zheng Lou, Lili Wang, Teng Fei and Tong Zhang, New J. Chem., 2012, Advance Article, DOI: 10.1039/C2NJ21030D, Paper

Interested to know more? Why not read by accessing the full articles now and let us know your thoughts and comments below! These “Hot articles” will be free to access for a period of 4 weeks.

To stay up-to-date with the latest NJC developments, sign up to its free table-of-contents email alert!

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Meet Our Authors – February Special Dendrimer Issue 2012

Here is a selection of author profiles from the 2012 February special dendrimer issue of NJC. We thank them most warmly for accepting our invitation and having kindly taken their time to answer a few questions for us.

Our first author is Prof. Donald Tomalia, who has pioneered dendrimer science and is the father of poly(amidoamine) dendrimers. He is currently the CEO/Founder of NanoSynthons LLC at the National Dendrimer & Nanotechnology Center in USA. His contribution to this special dendrimer issue describes the integrated dependency of dendrimer-based “dendritic effects” on critical nanoscale design parameters (CNDPs). The interdependency of these CNDPs (i.e., (a) size, (b) shape, (c) surface chemistry, (d) flexibility/rigidity and (e) architecture) actually causes “dendritic effects” as they produce important predictive nano-periodic property patterns. “I like combining fundamental science with a suitable translation of new discoveries into applications of value to society. Scientific surprises are stimulating; whereas, useful applications are an interesting score card for appraising successful translation of discovery” says Don. When asked for an alternative career path if not a scientist, Don answered “I would probably be a landscape architect”. Indeed, the invention of dendrimers did offer a new architecture in the landscape of synthetic macromolecules.

Dendritic effects: dependency of dendritic nano-periodic property patterns on critical nanoscale design parameters (CNDPs) by Donald A. Tomalia; New J. Chem., 2012, 36, 264-281; DOI:10.1039/C1NJ20501C

Dr. Anne-Marie Caminade, a French research director, is one of the leading figures in dendrimer science. She is interested in all aspects of dendrimers: their synthesis, their characterization, and their uses in different fields such as catalysis, nano-materials, and biology. She is also involved in different aspects of the chemistry of phosphorus since the beginning of her scientific career. Both fields have now merged in her activities, and she is an expert in the study of phosphorus-containing dendrimers. She contributed a review on “Janus” dendrimers, i.e. dendrimers having two different faces, in this special issue. For Anne-Marie, the most important things in science are freedom and imagination: freedom to choose what we want to explore, and the possibility to imagine new objects, new connections, and new answers. “Being a researcher was the dream of my life since I was 6 years old, and I have done my best to be able to live my dream all my life. The day I got a permanent position at the CNRS was the most important in my life. Even after many years of research, I am still as motivated as I was the first day, may be even more”, affirms Anne-Marie. Apart from living in her dream of science, Anne-Marie is an excellent cook of delicious and exquisite French dishes.

“Janus” dendrimers: syntheses and properties by Anne-Marie Caminade, Régis Laurent, Béatrice Delavaux-Nicot and Jean-Pierre Majoral; New J. Chem., 2012, 36, 217-226; DOI: 10.1039/C1NJ20458K


Prof. René Roy is a Professor of chemistry at the University of Québec in Montréal, Canada and specializes in glycodendrimers. René and his collaborators have contributed to the commercialization of two bacterial polysaccharide-based vaccines against meningitis and pneumonia. In this special dendrimer issue, he highlights recent developments in the chemical synthesis of carbohydrate-associated cancer vaccines that include the use of dendrimer technologies to trigger immune cell responses. When asked “why did you choose your current position?” René answered, “I got chemistry sets as Christmas gifts when I was a teenager”. When questioning him what the coolest thing about science is: “It is a never ending story!” declares René.

Glycodendrimers as functional antigens and antitumor vaccines by Tze Chieh Shiao and René Roy; New J. Chem., 2012, 36, 324-339; DOI: 10.1039/C2NJ20873C

Dr. Maria Angeles Muñoz-Fernandez is the Director of the HIV HGM BioBank and the head of the Laboratory of Molecular Immunobiology at the Hospital General Universitario Gregorio Marañón in Madrid, Spain. Her research interest centers on the role of nanomedicine (dendrimers) in immunology, molecular biology and HIV infection. In her contribution to this special issue, she presents advances in the design of innovative microbicides against HIV infection based on the use of dendrimers. “For me, research is an exciting activity that requires creativity, intuition, prudency, observation and reflexion. Mainly I chose to do research for the creativity. That for me is the most important activity and it is the reward I get”, says Ma Ángeles. Besides her research activity, Maria Angeles likes Flamenco dance and is an excellent dancer.

Synthesis and fluorescent properties of cationic carbosilane dendrimers containing eugenol linkers for their use in biomedical applications by Beatriz Rasines, Javier Sánchez-Nieves, Irene T. Molina, Manuel Guzmán, Ma Ángeles Muñoz-Fernández, Rafael Gómez and F. Javier de la Mata; New J. Chem., 2012, 36, 360-370; DOI: 10.1039/C1NJ20374F

For the full list of articles comprising this dedicated issue, click here!

Thanks to all of you, and see you next month for more!

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Read NJC’s Themed Issue on Dendrimers

If you work with dendrimers, or are interested in learning more about these fascinating molecules, then don’t miss NJC’s themed issue on dendrimers that has recently been published on-line (February 2012 issue).

Guest-edited by renowned expert Jean-Pierre Majoral, this Dendrimers II issue follows our highly successful first Dendrimers issue of July 2007. In his editorial prefacing this latest issue, Jean-Pierre defines the concept of “dendrimer space” (click to read it free)

The three short and topical Focus reviews look at dendrimers as bactericides, in biomedical applications and in neurodegenerative diseases. The ten longer Perspective reviews cover the synthesis and properties of dendrimers, materials that incorporate dendrimers, and a variety of applications of dendrimers in biology and medicine.

Eighteen original research works complete the issue. I’ve selected five of these contributions, highly ranked by the reviewers, as Hot Papers; these will be free to access during the month of February (just click on the DOIs below).

• 5 Hot Papers

The biodistribution of maltotriose modified PPI dendrimers, with particular attention to the BBB crossing, was studied in a collaboration of Polish and German groups, revealing that the dendrimers were able to enter rat’s important organs, including the brain.

“The biodistribution of maltotriose modified poly(propylene imine) (PPI) dendrimers conjugated with fluorescein—proofs of crossing blood–brain–barrier” by A. Janaszewska, B. Ziemba, K. Ciepluch, D. Appelhans, B. Voit, B. Klajnert and M. Bryszewska, New J. Chem., 2012, 36, 350-353. DOI: 10.1039/C1NJ20444K

The group of Rainer Haag (Freie Universität Berlin) looked at fluorous polyglycerol dendrons and dendrimers, which are used to form highly stable aggregates in the micro- to nanometer range in water.

Supramolecular behavior of fluorous polyglycerol dendrons and polyglycerol dendrimers with perfluorinated shells in water” by M. Zieringer, M. Wyszogrodzka, K. Biskup and R. Haag, New J. Chem., 2012, 36, 402-406. DOI: 10.1039/C1NJ20741E

Steven Zimmerman (University of Illinois at Urbana Champaign), in collaboration with Rainer Haag, used hyperbranched polyglycerols to solubilize perylenediimide (PDI) and improve its fluorescent properties.

“Synthesis and properties of fluorescent dyes conjugated to hyperbranched polyglycerols” by A. T. Zill, K. Licha, R. Haag and S. C. Zimmerman, New J. Chem., 2012, 36, 419-427. DOI: 10.1039/C1NJ20476A

In the contribution by Bertrand Donnio and colleagues at the IPCMS in Strasbourg, two libraries of segmented block co-dendritic supermolecules bearing semi-fluorinated chains and lipophilic poly(benzyl ether)-based wedges form unusual liquid crystalline mesophases, whose supramolecular organization is tuned by the dendritic connectivity of both compartments.

“Self-assembly and liquid-crystalline supramolecular organizations of semifluorinated block co-dendritic supermolecules” by I. Bury, B. Heinrich, C. Bourgogne, G. H. Mehl, D. Guillon and B. Donnio, New J. Chem., 2012, 36, 452-468. DOI: 10.1039/C1NJ20530G

A self-assembly strategy allowing the generation of homo- and hetero-nuclear metallodendritic materials is the result of a joint effort by several American groups at the University of Akron and Louisiana State University.

“Shape-persistent, ruthenium(II)- and iron(II)-bisterpyridine metallodendrimers: synthesis, traveling-wave ion-mobility mass spectrometry, and photophysical properties” by J.-L. Wang, X. Li, C. D. Shreiner, X. Lu, C. N. Moorefield, S. R. Tummalapalli, D. A. Medvetz, M. J. Panzner, F. R. Fronczek, C. Wesdemiotis and G. R. Newkome, New J. Chem., 2012, 36, 484-491. DOI: 10.1039/C2NJ20799K

Take a look at these hot papers while they are free to all, this month only!

• About the Covers

The paper by J.-L. Wang et al. is also the subject of the outside cover (shown at the top) featuring windmills and dendrimers, while the inside front cover (at right) illustrates the Perspective review by French researchers in Strasbourg and Lyon on dendrimers in medical imaging .

“Dendrimers in nuclear medical imaging” by C. Ghobril, G. Lamanna, M. Kueny-Stotz, A. Garofalo, C. Billotey and D. Felder-Flesch, New J. Chem., 2012, 36, 310-323. DOI: 10.1039/C1NJ20416E (available to subscribers only)

We invite you to browse the issue here, and if you are a subscriber, to read more about dendrimers from the world’s experts in the field. Enjoy!

Click to subscribe to NJC.

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