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Flat, Diamond-Shaped Plates of Lithium Iron Phosphate Improve Discharge Voltages

Cathodes made from hollow plates of lithium iron phosphate improve the performance of lithium-ion batteries.
© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

November 19, 2014 – Hollow, crystalline particles of lithium iron phosphate can enhance the performance of lithium-ion batteries by enabling an easier flow of lithium ions, A*STAR researchers have found.

Lithium-ion batteries are ubiquitous in cell phones, laptops and other portable electronic devices, and are increasingly used in electric cars. During charging, lithium ions inside the battery leave the positive cathode, travel through a liquid electrolyte and enter the negative anode (often made of carbon). This flow of ions reverses during discharging.

But conventional cathode materials have serious drawbacks: lithium cobalt oxide, for example, is toxic and expensive, and while lithium iron phosphate is cheaper and nontoxic, it suffers from low electrical conductivity.

Prof Jackie Ying of the A*STAR Institute of Bioengineering and Nanotechnology in Singapore and colleagues have now developed a form of lithium iron phosphate particles that act as a cathode for better performance. The diamond-shaped particles, which look like miniature melon seeds, are hollow, and have a crystalline structure that is easier for lithium ions to enter (see image).

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IBN Develops Green Tea-Based ‘Missiles’ to Kill Cancer Cells More Effectively

The IBN research team (from right to left): Dr Susi Tan, Dr Motoichi Kurisawa, Prof Jackie Y. Ying, Dr Shujun Gao,
Dr Joo Eun Chung and Ms Nunnarpas Yongvongsoontorn.

October 6, 2014 – Green tea has long been known for its anti-oxidant, anti-cancer, anti-aging and anti-microbial properties. A group of researchers from the Institute of Bioengineering and Nanotechnology (IBN) of A*STAR has taken the health benefits of green tea to the next level by using one of its ingredients to develop a drug delivery system, which kills cancer cells more efficiently.

A key ingredient in green tea, epigallocatechin gallate (EGCG), is an antioxidant which is known to have therapeutic applications in the treatment of many disorders including cancer.

Using EGCG, IBN researchers have successfully engineered nanocarriers that can deliver drugs and kill cancer cells more efficiently. Their work was published recently in the leading journal Nature Nanotechnology

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Nano Today on World’s Top 5 List in Three Journal Categories
Singapore-based journal records its highest impact factor of 18.432

August 13, 2014 – Singapore-based Nano Today journal has received a record high impact factor of 18.432 in 2013, up from 17.689 in 2012, according to the Journal Citation Reports® published by Thomson Reuters last month. The scientific journal is one of the highest impact publications across nanoscience and nanotechnology, materials science and chemistry.

Nano Today ranks 2nd among 73 journals in the Nanoscience and Nanotechnology category, 4th out of 251 journals in Materials Science (Multidisciplinary), and 5th out of 148 journals in Chemistry (Multidisciplinary). Nano Today is also the only Asia-based journal among the top 5 journals in these disciplines.

Nano Today is committed towards furthering the latest advances in the multidisciplinary field of nanoscience and nanotechnology, and I am delighted that it is recognized for publishing high-impact and high-quality articles. The journal’s high citation illustrates the importance of our papers in this competitive, rapidly evolving field. I would like to thank our readers, authors, reviewers, Editorial Advisory Board and our Managing Editor Noreena AbuBakar for their strong support and contributions to the journal’s success,” said Professor Jackie Y. Ying, Editor-in-Chief of Nano Today, who is also the Executive Director of the Institute of Bioengineering and Nanotechnology, Singapore.

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IBN in the News

Nano Missile Fights Cancer with Green Tea
AsiaOne, 21 Oct 2014

Nano Missile Fights Cancer with Green Tea
Sunday Times, 19 Oct 2014

Researchers Develop Green Tea-Based 'Missiles' to Kill Cancer Cells More Effectively
PhysOrg, 08 Oct 2014

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8 Dec - 9 Dec
2nd IBN International Symposium Nanomedicine and Nanoassays

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Benzyl Chloride-Functionalized Polycarbonates: A Versatile Platform for the Synthesis of Functional Biodegradable Polycarbonates
Macromolecules, (2014)
DOI: 10.1021/ma501734y.
(IF: 5.927) article

Efficient Fixation of Carbon Dioxide into Cyclic Carbonates Catalysed by Silicon-Based Main Chain Poly-Imidazolium Salts
Green Chemistry, 16 (2014) 4515-4519.
(IF: 6.852) article

Self-Assembled Micellar Nanocomplexes Comprising Green Tea Catechin Derivatives and Protein Drugs for Cancer Therapy
Nature Nanotechnology, 9 (2014) 907-912.
(IF: 33.265) article



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