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Archive for the ‘Nanoscale’ Category

Blue light emission from red light absorption

26 Jun 2013

Hao Dong, Ling-Dong Sun and Chun-Hua Yan review the energy upconvertion potential of lanthanide doped minerals, in bulk and in nanocrystals/nanoparticles. The plethora of excited state in lanthanide ions can be exploited in single metal energy upconverters and in multimetellic systems, where the number of populated excited states is increased significantly. The paper is an excellent starting point for the people interested in lanthanide energy upconvertion.

My first encounter with energy upconvertion was for thulium ions in solution, where high fluency irradiation made several processes possible, which never would take place in the world of linear photophysics I usually inhabit. The possible processes multiply in nanocrystalline matrices with multiple lanthanide ions present. Dong et al. have kept their sights straight and produced an concise account of the possible mechanism for energy upconversion and on how to identify them. The road to a low fluency energy upconverting system may prove to be long, but papers like this makes sure that it will be interesting.

by Dr Thomas Just Sørensen

Read this Minireview article in Nanoscale today:

Basic understanding of the lanthanide related upconversion emissions
Hao Dong, Ling-Dong Sun and Chun-Hua Yan
Nanoscale, 2013, 5, 5703-5714
DOI: 10.1039/C3NR34069D

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1st International Symposium on Nanocarbons (ISNC 2013)

25 Jun 2013

Nanoscale and Energy & Environmental Science (EES) were proud to co-sponsor the recent “1st International Symposium on Nanocarbons (ISNC 2013)“, which was held at the University of Science & Technology of China, Hefei.

Nanoscale Associate Editor and speaker at the conference, Professor Dirk Guldi, presented three student poster awards on behalf of Nanoscale and EES. The winners received prizes and certificates in the closing session.

The Poster Prizewinners

The latest international research on carbon materials, including carob nanotubes, graphene, fullerenes and hybrid carbon materials, as well as their broad applications in energy conversion, optoelectronics and biomedicine were covered at the meeting. The conference was a great success with over 160 participants.

Participants at ISNC2013

The Lecture Hall at ISNC2013

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This week’s HOT articles

24 Jun 2013

Take a look at these exciting articles recently published in Nanoscale:

Electrically conductive lines on cellulose nanopaper for flexible electrical devices
Ming-Chun Hsieh, Changjae Kim, Masaya Nogi and Katsuaki Suganuma
DOI: 10.1039/C3NR01951A

Free-standing and binder-free lithium-ion electrodes based on robust layered assembly of graphene and Co3O4 nanosheets
Ronghua Wang, Chaohe Xu, Jing Sun, Yangqiao Liu, Lian Gao and Chucheng Lin
DOI: 10.1039/C3NR01392H

Free-standing and binder-free lithium-ion electrodes based on robust layered assembly of graphene and Co3O4 nanosheets

Aqueous phase synthesis of upconversion nanocrystals through layer-by-layer epitaxial growth for in vivo X-ray computed tomography
Feifei Li, Chunguang Li, Jianhua Liu, Xiaomin Liu, Lan Zhao, Tianyu Bai, Qinghai Yuan, Xianggui Kong, Yu Han, Zhan Shi and Shouhua Feng
DOI: 10.1039/C3NR01530K

Aqueous phase synthesis of upconversion nanocrystals through layer-by-layer epitaxial growth for in vivo X-ray computed tomography

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Announcing upcoming Nanoscale themed issue: Helical Micro- and Nanostructures

24 Jun 2013

We are delighted to announce a high-profile themed issue on “Helical Micro- and Nanostructures”. This will be Guest Edited by Li Zhang (The Chinese University of Hong Kong), Lixin Dong (Michigan State University) and Peer Fischer (Max-Planck-Institute). The themed issue will be published in Nanoscale in 2014.

The helix is one of the most fundamental geometrical shapes in nature, which can be found at all length scales: from the structure of DNA to planetary helix nebula. During the last three decades, novel nanotechnologies have been developed that have provided various means for fabricating helices. Based on their unique shape micro and nanohelices are poised to play an important role in nanoelectronics, optics, MEMS/NEMS, micro-/nanorobotics, new materials, biology and nanomedicine, which this special issue will highlight. This themed issue aims to bring together exciting research from scientists who are working on these fascinating structures at small scales, and to review the recent advance of helical micro-and nanostructures from the fabrication technology to their applications.

Please contact the Nanoscale Editorial Office (nanoscale-rsc@rsc.org) if you are interested in contributing to this themed issue. The deadline for submissions to this themed issue is the 17^th January 2014.

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Nanoscale article in Chemistry World: Seawater-driven micromachines

24 Jun 2013

Seawater can be used as fuel to propel micromotors say scientists in the US. This finding eliminates the need for external fuels by enabling the micromotors to harvest energy from their surrounding environment.

Joseph Wang and his colleagues from the University of California, San Diego, have designed micromotors that consist of biodegradable and environmentally friendly magnesium microparticles and a nickel–gold bilayer patch for magnetic guidance and surface modification. Typically, ‘other catalytic microscale motors rely upon hydrogen peroxide as an external fuel source, but this requirement impedes many important applications for such tiny motors,’ explains Wang. Instead, these micromotors are fuelled by seawater and rely on the hydrogen bubble thrust generated from the magnesium–water reaction. ‘They [the micromotors] display efficient and prolonged propulsion in chloride-rich environments, like seawater, owing to the chloride pitting corrosion processes. The presence of the gold bilayer also enhances the magnesium–water reaction and leads to efficient motion in seawater,’ says Wang.

Read the full article by Emma Shiells in Chemistry World!

Read the article in Nanoscale:

Seawater-driven magnesium based Janus micromotors for environmental remediation
W Gao et al.
Nanoscale, 2013,5, 4696-4700
DOI: 10.1039/C3NR01458D

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Nanoscale’s latest Impact Factor: 6.23

20 Jun 2013

We are delighted to announce that our Impact Factor* has risen to an impressive 6.23!

Nanoscale continues to attract work of the highest quality and impact; bridging the various disciplines involved with nanoscience and nanotechnology and disseminating the latest exciting research to its large, community-spanning international readership. We look forward to building on this success in the months and years ahead.

The Editorial Office thanks all our Board members, authors and readers for their support – Nanoscale is your journal.

We welcome your future high-quality submissions to Nanoscale – submit your best research today.

*The Impact Factor provides an indication of the average number of citations per paper. Produced annually, Impact Factors are calculated by dividing the number of citations in a year by the number of citeable articles published in the preceding two years. Data based on 2012 Journal Citation Reports^®, (Thomson Reuters, 2013).

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This week’s HOT articles

17 Jun 2013

Take a look at these exciting articles recently published in Nanoscale:

Tunable properties induced by ion exchange in multilayer intertwined CuS microflowers with hierarchal structures
Liwei Mi, Wutao Wei, Zhi Zheng, Yang Gao, Yang Liu, Weihua Chen and Xinxin Guan
DOI: 10.1039/C3NR01438J

Tunable properties induced by ion exchange in multilayer intertwined CuS microflowers with hierarchal structures

Structural and electronic studies of metal carbide clusterfullerene Sc2C2@Cs–C72
Yongqiang Feng, Taishan Wang, Jingyi Wu, Lai Feng, Junfeng Xiang, Yihan Ma, Zhuxia Zhang, Li Jiang, Chunying Shu and Chunru Wang
DOI: 10.1039/C3NR01739G

Structural and electronic studies of metal carbide clusterfullerene Sc2C2@Cs–C72

High-speed AFM for scanning the architecture of living cells
Jing Li, Zhifeng Deng, Daixie Chen, Zhuo Ao, Quanmei Sun, Jiantao Feng, Bohua Yin, Li Han and Dong Han
DOI: 10.1039/C3NR01464A

High-speed AFM for scanning the architecture of living cells

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New nanoscience books from Royal Society of Chemistry

12 Jun 2013

With the publication of its latest title, Artificial Cilia edited by Jaap den Toonder and Patrick Onck, the RSC Nanoscience & Nanotechnology Series celebrated publishing 30 books in the Series.

The Series is led by Editor-in-Chief Paul O’Brien FRS, University of Manchester, UK with Series Editors Ralph Nuzzo, University of Illinois at Urbana-Champaign, USA;Joao Rocha, University of Aveiro, Portugal and Xiaogang Liu, National University of Singapore.

Recently published titles in this series include:

Nanoscience for the Conservation of Works of Art edited by Piero Baglioni and David Chelazzi, University of Florence, Italy
Polymer Nanofibers by Dario Pisignano, University of Salento, Italy

Recently published titles in the RSC Smart Materials Series are:

Responsive Photonic Nanostructures edited by Yadong Yin, Unversity of California, Riverside, USA
Materials Design Inspired by Nature edited by Peter Fratzl , John Dunlop and Richard Weinkamer, Max Planck Institute of Colloids and Interfaces, Germany

Don’t forget you can freely access the table of contents, preface, front matter and first chapter of every eBook in the Series via the RSC Publishing website.

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This week’s HOT articles

10 Jun 2013

Mechanical reinforcement fibers produced by gel-spinning of poly-acrylic acid (PAA) and graphene oxide (GO) composites
Zaixing Jiang, Qiang Li, Menglin Chen, Jingbo Li, Jun Li, Yudong Huang, Flemming Besenbacher and Mingdong Dong
DOI: 10.1039/C3NR00288H

Mechanical reinforcement fibers produced by gel-spinning of poly-acrylic acid (PAA) and graphene oxide (GO) composites

Lanthanide-doped NaScF4 nanoprobes: crystal structure, optical spectroscopy and biodetection
Yu Ai, Datao Tu, Wei Zheng, Yongsheng Liu, Jintao Kong, Ping Hu, Zhuo Chen, Mingdong Huang and Xueyuan Chen
DOI: 10.1039/C3NR01529G

Lanthanide-doped NaScF4 nanoprobes: crystal structure, optical spectroscopy and biodetection

Bandgap engineering and shape control of colloidal CdxZn1−xO nanocrystals
Xin Wang, Yizheng Jin, Haiping He, Fan Yang, Yefeng Yang and Zhizhen Ye
DOI: 10.1039/C3NR01124K

Bandgap engineering and shape control of colloidal CdxZn1−xO nanocrystals

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This week’s HOT articles

03 Jun 2013

Stochastic memristive devices for computing and neuromorphic applications
Siddharth Gaba, Patrick Sheridan, Jiantao Zhou, Shinhyun Choi and Wei Lu
DOI: 10.1039/C3NR01176C

Stochastic memristive devices for computing and neuromorphic applications

Electrochemically induced actuation of liquid metal marbles
Shi-Yang Tang, Vijay Sivan, Khashayar Khoshmanesh, Anthony P. O’Mullane, Xinke Tang, Berrak Gol, Nicky Eshtiaghi, Felix Lieder, Phred Petersen, Arnan Mitchell and Kourosh Kalantar-zadeh
DOI: 10.1039/C3NR00185G

Electrochemically induced actuation of liquid metal marbles

Efficient Temperature Sensing Platform Based on Fluorescent Block Copolymer-Functionalized Graphene Oxide
Hyunseung Yang, Kwanyeol Paek and Bumjoon J. Kim
DOI: 10.1039/C3NR01486J

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Nanoscale & Nanoscale Advances Blog

Archive for the ‘Nanoscale’ Category

Blue light emission from red light absorption

1st International Symposium on Nanocarbons (ISNC 2013)

This week’s HOT articles

Announcing upcoming Nanoscale themed issue: Helical Micro- and Nanostructures

Nanoscale article in Chemistry World: Seawater-driven micromachines

Nanoscale’s latest Impact Factor: 6.23

This week’s HOT articles

New nanoscience books from Royal Society of Chemistry

This week’s HOT articles

This week’s HOT articles

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