Archive for the ‘Nanoscale’ Category

This week’s HOT articles

Take a look at this week’s selection…

Binder-free graphene foams for O2 electrodes of Li–O2 batteries
Wenyu Zhang, Jixin Zhu, Huixiang Ang, Yi Zeng, Ni Xiao, Yiben Gao, Weiling Liu, Huey Hoon Hng and Qingyu Yan
DOI: 10.1039/C3NR03321J, Paper

Flexible electrostatic nanogenerator using graphene oxide film
He Tian, Shuo Ma, Hai-Ming Zhao, Can Wu, Jie Ge, Dan Xie, Yi Yang and Tian-Ling Ren
DOI: 10.1039/C3NR01658G, Communication

A facile route to Si nanowire gate-all-around field effect transistors with a steep subthreshold slope
Jae-Hyun Lee, Byung-Sung Kim, Soon-Hyung Choi, Yamujin Jang, Sung Woo Hwang and Dongmok Whang
DOI: 10.1039/C3NR02552G, Communication

A facile route to Si nanowire gate-all-around field effect transistors with a steep subthreshold slope

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Next-generation vascular stents: Nanoscale article in Chemistry World

Vascular stents can be surgically inserted into blood vessels to treat atherosclerosis © Shutterstock

Scientists in the US and China have developed a biodegradable alloy for use in medical implants. The new alloy, called JDBM, mixes magnesium, neodymium, zinc and zirconium. JDBM degrades uniformly in physiological conditions so further surgery to remove implants made from it would not be necessary.

Atherosclerosis is a precursor to heart disease and occurs when artery walls thicken from cholesterol build-up. Surgical atherosclerosis treatment uses a mesh tube called a stent to restore blood flow in blocked blood vessels. While most currently used stents are non-degradable and require further surgery to remove them, stents made from JDBM by the teams of Rong Fan at Yale University and Guanyin Yuan at Shanghai Jiaotong University will degrade in the body so won’t need to be removed.

Interested to know more? Read the full news article by Emma Eley in Chemistry World here…

Read the article by L Mao et al. in Nanoscale:

Nanophasic biodegradation enhances durability and biocompatibility of magnesium alloys for the next-generation vascular stents
Lin Mao, Li Shen, Jialin Liu, Jian Zhang, Wenjiang Ding, Rong Fan and Guangyin Yuan
DOI: 10.1039/C3NR02912C

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This week’s HOT articles

Take a look at this week’s exciting selection…

Efficient bubble propulsion of polymer-based microengines in real-life environments
Wei Gao, Sirilak Sattayasamitsathit, Jahir Orozco and Joseph Wang 
DOI: 10.1039/C3NR03254J

The influence of applied magnetic fields on the optical properties of zero- and one-dimensional CdSe nanocrystals
Daniel E. Blumling, Stephen McGill and Kenneth L. Knappenberger  
DOI: 10.1039/C3NR03252C

Intrinsic electronic and transport properties of graphyne sheets and nanoribbons
Wenzhi Wu, Wanlin Guo and Xiao Cheng Zeng  
DOI: 10.1039/C3NR03167E

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Measuring the environmental toxicity of engineered nanomaterials

Advances in nanomaterial production for device implementation, biotechnology and biomedical areas require methods to measure the possible health and safety risks associated with nanomaterials exposed to a particular biological environment.  In this manuscript, researchers from the Health Research Institute, Japan, investigate the environmental toxicity of engineered CdSe quantum dots (QDs) and ZnO nanopowder (NP) in human lung cells.

Table of contents imageTo evaluate the toxicity, the researchers induce the breakdown of the nanomaterials by exposing them to simulated solar UV light.  This releases Cd2+ and Zn2+ ions for the QDs and NPs, respectively, which were then detected by measuring the quenching of the fluorescence signal in the presence of tetrakis (4-carboxyphenyl) porphyrin (TCPP) or by measuring the enhancement of the fluorescence signal in the presence of the commercial Measure iT Pd/Cd sensor.

The researchers conclude that Cd2+ and Zn2+ ions are not cytotoxic at low concentrations and for short UV exposure times but become toxic at longer exposure times, i.e. 72 hours or longer.  In addition, cells exposed in the long term to Cd2+ ions result in extensive DNA damage as measured by comet assays and gel electrophoresis.  This manuscript details the importance of measuring the health and safety aspects of engineered nanomaterials, in particular the environmental impact of released meal ions, exposed to UV light.

by Dr Lee Barrett

Read the full Nanoscale communication here:

Impairments of cells and genomic DNA by environmentally transformed engineered nanomaterials
Philip Jones, Sakiko Sugino, Shohei Yamamura, Fred Lacyb and Vasudevanpillai Biju*
Nanoscale, 2013, Advance Article
DOI: 10.1039/C3NR03118G

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This week’s HOT articles

Take a look at this week’s exciting selection…

Multiple strategies to activate gold nanoparticles as antibiotics
Yuyun Zhao and Xingyu Jiang
DOI: 10.1039/C3NR01990J

Cyclic twinning and internal defects of boron-rich nanowires revealed by three-dimensional electron diffraction mapping

Xin Fu and Jun Yuan
DOI: 10.1039/C3NR01839C

Development of stretchable membrane based nanofilters using patterned arrays of vertically grown carbon nanotubes
Hao Wang, Zhuolin Xiang, Chih-Fan Hu, Aakanksha Pant, Weileun Fang, Sylvie Alonso, Giorgia Pastorin and Chengkuo Lee
DOI: 10.1039/C3NR02742B

Modeling and self-assembly behavior of PEG–PLA–PEG triblock copolymers in aqueous solution
Xiaohan Wu, Suming Li, Fanny Coumes, Vincent Darcos, Joséphine Lai Kee Him and Patrick Bron
DOI:
10.1039/C3NR02899B

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UK-China Symposium of New Energy Materials and Nanotechnology

The Chinese Society of Chemical Science and Technology in the UK (CSCST-UK) is professional organisation organised by Chinese Scholars currently working in the UK. It was established in April 1994 in London with the help of the Education Section of Chinese Embassy in the UK.
The society aims to promote academic communications among members and strengthen academic exchange between UK and China.

The Society and Zhengzhou University co-organized a UK-China Symposium of New Energy Materials and Nanotechnology in July 2012 and Nanoscale was pleased to publish the following papers in association with the conference:

Enhanced visible-light-driven photocatalytic activity of mesoporous TiO2−xNx derived from the ethylenediamine-based complex
Zheng Jiang, Liang Kong, Feraih Sh. Alenazey, Yangdong Qian, Liam France, Tiancun Xiao and Peter P. Edwards
Nanoscale, 2013, 5, 5396-5402
DOI: 10.1039/C3NR00344B

Tunable Pt nanocatalysts for the aerobic selox of cinnamyl alcohol
Lee J. Durndell, Christopher M. A. Parlett, Nicole S. Hondow, Karen Wilson and Adam F. Lee
Nanoscale, 2013, 5, 5412-5419
DOI: 10.1039/C3NR00184A

Silver nanoparticles-decorated polyphosphazene nanotubes: synthesis and applications
Minghuan Wang, Jianwei Fu, Dandan Huang, Chao Zhang and Qun Xu
Nanoscale, 2013, Advance Article
DOI: 10.1039/C3NR00010A

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We invite you to submit your best research to Nanoscale.

Delegates at the 2012 UK-China Symposium of New Energy Materials and Nanotechnology

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This week’s HOT articles

Take a look at this week’s exciting selection…

Dendritic Au/TiO2 nanorod arrays for visible-light driven photoelectrochemical water splitting
Fengli Su, Tuo Wang, Rui Lv, Jijie Zhang, Peng Zhang, Jianwei Lu and Jinlong Gong  
DOI: 10.1039/C3NR02766J

Visible light driven type II heterostructures and their enhanced photocatalysis properties: a review
Yajun Wang, Qisheng Wang, Xueying Zhan, Fengmei Wang, Muhammad Safdar and Jun He  
DOI: 10.1039/C3NR01577G

Intelligent supramolecular assembly of aromatic block molecules in aqueous solution
Wen Li, Yongju Kim and Myongsoo Lee  
DOI: 10.1039/C3NR02574H

Atomic force microscopy and near-field optical imaging of a spin transition
Manuel Lopes, Carlos M. Quintero, Edna M. Hernández, Víctor Velázquez, Carlos Bartual-Murgui, William Nicolazzi, Lionel Salmon, Gábor Molnár and Azzedine Bousseksou  
DOI: 10.1039/C3NR03030J

Facile synthesis of low crystalline MoS2 nanosheet-coated CNTs for enhanced hydrogen evolution reaction
Ya Yan, Xiaoming Ge, Zhaolin Liu, Jing-Yuan Wang, Jong-Min Lee and Xin Wang
DOI: 10.1039/C3NR02994H

SnO2-microtube-assembled cloth for fully flexible self-powered photodetector nanosystems
Xiaojuan Hou, Bin Liu, Xianfu Wang, Zhuoran Wang, Qiufan Wang, Di Chen and Guozhen Shen  
DOI: 10.1039/C3NR02300A

Controlling the morphology of conductive PEDOT by in situ electropolymerization: from thin films to nanowires with variable electrical properties
Chiara Musumeci, James A. Hutchison and Paolo Samorì  
DOI: 10.1039/C3NR03093H

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Nanomagnets clean blood: Nanoscale article in Chemistry World

Nanoparticles that never have to enter the body can capture harmful components in blood, scientists in Switzerland have shown.

Removing unwanted molecules from the blood is the most direct way to cure or prevent many illnesses. An example of this approach is dialysis where small molecules like urea are filtered out to treat patients with renal failure. As this separation method is size-selective, larger noxious molecules or cells cannot be efficiently eliminated from the blood in this way.

Interested to know more? Read the full news article by Rowan Frame in Chemistry World here…

Read the article by  I K Herrmann et al. in Nanoscale:

Nanomagnet-based removal of lead and digoxin from living rats
Nanoscale, 2013, Accepted Manuscript
DOI: 10.1039/c3nr02468g

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Top 25 most-read Nanoscale articles – Q2 2013

This month sees the following articles in Nanoscale that are in the top 25 most accessed from April – June: 

Nanoelectronic biosensors based on CVD grown graphene 
Yinxi Huang, Xiaochen Dong, Yumeng Shi, Chang Ming Li, Lain-Jong Li and Peng Chen    
Nanoscale, 2010,2, 1485-1488 
DOI: 10.1039/C0NR00142B 

Glutathione-functionalized graphene quantum dots as selective fluorescent probes for phosphate-containing metabolites 
Jing-Jing Liu, Xiao-Long Zhang, Zhong-Xiao Cong, Zhi-Tao Chen, Huang-Hao Yang and Guo-Nan Chen    
Nanoscale, 2013,5, 1810-1815 
DOI: 10.1039/C3NR33794D 

Recent progress on graphene-based photocatalysts: current status and future perspectives 
Nan Zhang, Yanhui Zhang and Yi-Jun Xu    
Nanoscale, 2012,4, 5792-5813 
DOI: 10.1039/C2NR31480K 

Recent advances in the efficient reduction of graphene oxide and its application as energy storage electrode materials 
Tapas Kuila, Ananta Kumar Mishra, Partha Khanra, Nam Hoon Kim and Joong Hee Lee 
Nanoscale, 2013,5, 52-71 
DOI: 10.1039/C2NR32703A 

Recent progress on metal core@semiconductor shell nanocomposites as a promising type of photocatalyst 
Nan Zhang, Siqi Liu and Yi-Jun Xu    
Nanoscale, 2012,4, 2227-2238 
DOI: 10.1039/C2NR00009A  

Surface-functionalized nanoparticles for biosensing and imaging-guided therapeutics 
Shan Jiang, Khin Yin Win, Shuhua Liu, Choon Peng Teng, Yuangang Zheng and Ming-Yong Han 
Nanoscale, 2013,5, 3127-3148 
DOI: 10.1039/C3NR34005H 

Environmental applications using graphene composites: water remediation and gas adsorption 
K. Christian Kemp, Humaira Seema, Muhammad Saleh, Nhien H. Le, Kandula Mahesh, Vimlesh Chandra and Kwang S. Kim  
Nanoscale, 2013,5, 3149-3171 
DOI: 10.1039/C3NR33708A  

Nanostructured carbon–metal oxide composite electrodes for supercapacitors: a review 
Mingjia Zhi, Chengcheng Xiang, Jiangtian Li, Ming Li and Nianqiang Wu    
Nanoscale, 2013,5, 72-88 
DOI: 10.1039/C2NR32040A  

Crystalline structure-dependent growth of bimetallic nanostructures 
Qian Li, Ruibin Jiang, Tian Ming, Caihong Fang and Jianfang Wang    
Nanoscale, 2012,4, 7070-7077 
DOI: 10.1039/C2NR31900D  

A review of fabrication and applications of carbon nanotube film-based flexible electronics 
Steve Park, Michael Vosguerichian and Zhenan Bao    
Nanoscale, 2013,5, 1727-1752 
DOI: 10.1039/C3NR33560G 

A SnO2@carbon nanocluster anode material with superior cyclability and rate capability for lithium-ion batteries 
Min He, Lixia Yuan, Xianluo Hu, Wuxing Zhang, Jie Shu and Yunhui Huang    
Nanoscale, 2013,5, 3298-3305 
DOI: 10.1039/C3NR34133J  

2D materials: to graphene and beyond 
Rubén Mas-Ballesté, Cristina Gómez-Navarro, Julio Gómez-Herrero and Félix Zamora    
Nanoscale, 2011,3, 20-30 
DOI: 10.1039/C0NR00323A  

Excellent catalytic effects of highly crumpled graphene nanosheets on hydrogenation/dehydrogenation of magnesium hydride 
Guang Liu, Yijing Wang, Changchang Xu, Fangyuan Qiu, Cuihua An, Li Li, Lifang Jiao and Huatang Yuan    
Nanoscale, 2013,5, 1074-1081 
DOI: 10.1039/C2NR33347C  

All-solid-state hybrid solar cells based on a new organometal halide perovskite sensitizer and one-dimensional TiO2 nanowire arrays 
Jianhang Qiu, Yongcai Qiu, Keyou Yan, Min Zhong, Cheng Mu, He Yan and Shihe Yang    
Nanoscale, 2013,5, 3245-3248 
DOI: 10.1039/C3NR00218G 

Hierarchically plasmonic photocatalysts of Ag/AgCl nanocrystals coupled with single-crystalline WO3 nanoplates 
Deliang Chen, Tao Li, Qianqian Chen, Jiabing Gao, Bingbing Fan, Jian Li, Xinjian Li, Rui Zhang, Jing Sun and Lian Gao    
Nanoscale, 2012,4, 5431-5439 
DOI: 10.1039/C2NR31030A 

Zirconium phosphate nanoplatelets: a biocompatible nanomaterial for drug delivery to cancer 
Vipin Saxena, Agustin Diaz, Abraham Clearfield, James D. Batteas and Muhammad Delwar Hussain    
Nanoscale, 2013,5, 2328-2336 
DOI: 10.1039/C3NR34242E  

Advances in 2D boron nitride nanostructures: nanosheets, nanoribbons, nanomeshes, and hybrids with graphene 
Yi Lin and John W. Connell    
Nanoscale, 2012,4, 6908-6939 
DOI: 10.1039/C2NR32201C  

Nano–bio effects: interaction of nanomaterials with cells 
Liang-Chien Cheng, Xiumei Jiang, Jing Wang, Chunying Chen and Ru-Shi Liu    
Nanoscale, 2013,5, 3547-3569 
DOI: 10.1039/C3NR34276J  

Dimension-tailored functional graphene structures for energy conversion and storage 
Jing Zhang, Fei Zhao, Zhipan Zhang, Nan Chen and Liangti Qu    
Nanoscale, 2013,5, 3112-3126 
DOI: 10.1039/C3NR00011G  

Graphene synthesis: relationship to applications 
Rebecca S. Edwards and Karl S. Coleman 
Nanoscale, 2013,5, 38-51 
DOI: 10.1039/C2NR32629A 

Gram-scale synthesis of ultrasmall SnO2 nanocrystals with an excellent electrochemical performance 
Yuejiao Chen, Jianmin Ma, Qiuhong Li and Taihong Wang    
Nanoscale, 2013,5, 3262-3265 
DOI: 10.1039/C3NR00356F  

Graphene-related nanomaterials: tuning properties by functionalization 
Qing Tang, Zhen Zhou and Zhongfang Chen    
Nanoscale, 2013,5, 4541-4583 
DOI: 10.1039/C3NR33218G 

Three-dimensional graphene architectures 
Chun Li and Gaoquan Shi    
Nanoscale, 2012,4, 5549-5563 
DOI: 10.1039/C2NR31467C  

Gold nanoparticle-enhanced luminescence of silicon quantum dots co-encapsulated in polymer nanoparticles 
Noor Aniza Harun, Matthew J. Benning, Benjamin R. Horrocks and David A. Fulton    
Nanoscale, 2013,5, 3817-3827 
DOI: 10.1039/C3NR00421J 

Intracellular cleavable poly(2-dimethylaminoethyl methacrylate) functionalized mesoporous silica nanoparticles for efficient siRNA delivery in vitro and in vivo 
Daoshu Lin, Qiang Cheng, Qian Jiang, Yuanyu Huang, Zheng Yang, Shangcong Han, Yuning Zhao, Shutao Guo, Zicai Liang and Anjie Dong    
Nanoscale, 2013,5, 4291-4301 
DOI: 10.1039/C3NR00294B 

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

Fancy submitting an article to Nanoscale? Then why not submit to us today!

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Free to access Cancer Nanotechnology collection 2013

We are pleased to present a web collection of articles from publications across the RSC journal portfolio demonstrating the use of (nano)technology in the diagnosis, imaging and treatment of cancer.

This web collection will be free to access from today until the 28th July, so register for an RSC Publishing personal account and read this cutting edge research for free this week!

Here are just a few of the cancer nanotechnology articles from Nanoscale:

Magnetic particle imaging: advancements and perspectives for real-time in vivo monitoring and image-guided therapy
Michele H. Pablico-Lansigan, Shu F. Situ and Anna Cristina S. Samia
DOI: 10.1039/C3NR00544E

Mesoporous silica nanoparticles as antigen carriers and adjuvants for vaccine delivery
Karishma T. Mody, Amirali Popat, Donna Mahony, Antonino S. Cavallaro, Chengzhong Yu and Neena Mitter
DOI: 10.1039/C3NR00357D

Surface-engineered nanomaterials as X-ray absorbing adjuvant agents for Auger-mediated chemo-radiation
Sang-Min Lee, De-Hao Tsai, Vincent A. Hackley, Martin W. Brechbiel and Robert F. Cook
DOI: 10.1039/C3NR00333G

Quantitative analysis of dendron-conjugated cisplatin-complexed gold nanoparticles using scanning particle mobility mass spectrometry
De-Hao Tsai, Tae Joon Cho, Sherrie R. Elzey, Julien C. Gigault and Vincent A. Hackley
DOI: 10.1039/C3NR00543G

See the full web collection here…

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