Archive for November, 2014

NJC issue 11 out now

This month, our five Guest Editors Michel Camplo, Jean-Manuel Raimundo, Laurence Navailles, Mark W. Grinstaff and Philippe Barthélémy present the seven reviews and ten articles which reflect the scope of bioinspired systems in supramolecular chemistry and nanotechnology (SupraBio) today in this themed collection.

NJC Nov 2014 OFC Ariga-Hill

Jonathan Hill designed this month’s outside cover to present the Perspective review by Dr Katsuhiko Ariga (National Institute for Materials Science, Japan) and his co-workers, and which is part of the themed issue. The authors propose an important paradigm shift in the preparation of functional materials with well-designed nanostructures, moving from a nanotechnological to a nanoarchitectonic approach.

They focus on examples involving drug delivery functions, which are promising applications of bioinspired materials research. In the review the team discusses recent developments involving assemblies of small amphiphilic molecules, polymer micelles and molecular conjugates and give examples of challenging concepts, including inorganic nanostructure design for drug delivery and mechanically controlled drug release. The authors come to the conclusion that bioinspired nanoarchitectonics can be utilized not only in drug delivery applications but also in many research fields, for which they open tremendous possibilities.

Bioinspired nanoarchitectonics as emerging drug delivery systems
Katsuhiko Ariga, Kohsaku Kawakami, Mitsuhiro Ebara, Yohei Kotsuchibashi, Qingmin Ji and Jonathan P. Hill.
New J. Chem., 2014, 38, 5149-5163. DOI: 10.1039/C4NJ00864B.

NJC Nov 2014 IFC RemitaThe inside cover illustrates an article written by Dr Hynd Remita (Université Paris-Sud, France) and her colleagues in which they present the synthesis of Au–Cu nanoparticles on a modified TiO2 support.

In this material the Au–Cu bimetallic nanoparticles, acting as efficient electron scavengers, enhance the photocatalytic activity under UV light. The photocatalytic properties of the modified TiO2 have also been studied for photodegradation of methyl orange. According to the authors, these materials can also have applications in catalysis.

Radiolytic synthesis of Au–Cu bimetallic nanoparticles supported on TiO2: application in photocatalysis
Zibin Hai, Nadia EL Kolli, Jiafu Chen and Hynd Remita.
New J. Chem., 2014, 38 5279-5286. DOI: 10.1039/C4NJ00883A.

We invite you to browse the complete table of contents (68 articles and reviews) of this issue to discover other interesting results.

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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

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