10 SEPTEMBER 2013, VOL. 3, NO. 1

   


10 SEPTEMBER 2013, VOL. 3, NO. 1, PAGES 45-50.




About the Cover:  A novel strategy of water induced shape memory, in which the formation and dissolution of poly(ethylene glycol) (PEG) crystal is utilized for the fixation and recovery of temporary deformation of hydrophilic polymer. This water-induced shape recovery is less sensitive to temperature, of which 95% deformation is fixed in circumstance and over 75% recovery is reached even at 0ºC. This enables the materials to be used widely in biomedical fields, such as self-tightening suture, artificial lens, smart stents, and artificial scaffold with complex geometries. (See page 49).




Table of Contents

NEWS

Worldwide break news are selected.

Intubation Robot (Jerusalem, ISRAEL)

Child Labor in Gold Mining (Dar Es Salaam, TANZANIA)

China: No Reach in Middle East (Beijing, CHINA)

The Warmest Winter (Wellington, NEW ZEALAND)

“London Is Burning” (London, UK)

World Bank targets air pollution (Oslo, NORWAY)

Science Insights 2013; 3(1): 45-46.

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EDITOR'S CHOICE

Recent representative literatures are highlighted.

BIOCHEMISTRY: Epigenetics: Selective Class IIa Histone Deacetylase Inhibitors

SOCIETY: Who Earns More in USA: Male or Female Health Care Professionals

HEALTH: Fruit Consumption and Risk of Type 2 Diabetes

Science Insights 2013; 3(1): 47.

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PICTURE STATION

Model Tipaerua (Model Canoe) (2002, From New Zealand)

By Alex Kennedy

Science Insights 2013; 3(1): 48.

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MINI-REPORT

Water Triggered Shape Memory Materials

By Guoguang Niu, Daniel Cohn

Science Insights 2013; 3(1): 49-50.

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SUMMARY

The shape memory materials triggered by water display advantage over the thermal induced ones because water triggered can eliminate temperature constrains and avoids fast degradation. Here we reported a new strategy of water induced shape memory, in which the formation and dissolution of poly(ethylene glycol) crystal is utilized for the fixation and recovery of temporary deformation of hydrophilic polymer. This water-induced shape recovery is less sensitive to temperature, of which 95% deformation is fixed in circumstance and over 75% recovery is reached even at 0 oC. The material possesses potential applications in biomedical fields, such as artificial lens and smart suture.