Table of contents


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Editorial

Keeping the public under the microscope p695

doi:10.1038/nnano.2009.320

New research confirms that the proportion of the public that knows about nanotechnology has reached a plateau, which means that it is now necessary to develop new approaches to explore public perceptions in greater detail than before.

Subject term: Ethical, legal and other societal issues


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Thesis

God in the lab pp696 - 697

Chris Toumey

doi:10.1038/nnano.2009.321

Surveys have found that almost half of all scientists in the US are religious. Chris Toumey explores what this might mean for nanotechnology.

Subject term: Ethical, legal and other societal issues


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Feature

Nanoparticles offer hope for TB detection pp698 - 699

Ai Lin Chun

doi:10.1038/nnano.2009.322

Combining magnetic nanoparticles, microfluidics and nuclear magnetic resonance could transform the way tuberculosis and other diseases are diagnosed.

Subject term: Nanomedicine


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Research Highlights

Our choice from the recent literature pp700 - 701

doi:10.1038/nnano.2009.323


Top down bottom up: Ring cycle p701

doi:10.1038/nnano.2009.324

The cooling rates of fullerene ions have been measured at a storage ring in Japan.

Subject term: Carbon nanotubes and fullerenes


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News and Views

Polymers: Performing under pressure pp703 - 704

Thomas P. Russell & Dong Hyun Lee

doi:10.1038/nnano.2009.328

Most probe-based approaches to data storage rely on heating a polymer substrate with a tip, but a new approach relies on pressure instead.

Subject terms: Electronic properties and devices | Nanomaterials | Surface patterning and imaging

See also: Letter by Jo et al.


Optomechanical crystals: Periodic nanobeams bring light and sound together p704

Owain Vaughan

doi:10.1038/nnano.2009.325

Subject terms: NEMS | Photonic structures and devices


Nanotechnology and society: The evolution of risk perceptions pp705 - 706

Dan M. Kahan

doi:10.1038/nnano.2009.329

A meta-analysis of surveys about public perceptions of the risks and benefits associated with nanotechnology suggests that further research is needed to help us better understand and, perhaps, inform public attitudes to nanotechnology.

Subject term: Ethical, legal and other societal issues

See also: Article by Satterfield et al.


Nanophotonics: Lasers go beyond diffraction limit pp706 - 707

Martin T. Hill

doi:10.1038/nnano.2009.330

Two groups of researchers have shown that the minimum size of a laser need not be restricted by the wavelength of light it emits, provoking a rethink of what optics and lasers can do at the nanoscale.

Subject term: Photonic structures and devices


Nanophotonics: Free electrons get light out of a hole pp707 - 708

Gordon Robb

doi:10.1038/nnano.2009.331

A device called a light well might form the basis of a tunable nanoscale laser.

Subject term: Photonic structures and devices


Nanotoxicology: New insights into nanotubes pp708 - 710

Ken Donaldson & Craig A. Poland

doi:10.1038/nnano.2009.327

Multiwalled carbon nanotubes inhaled by mice can reach the outer lining of the lungs and cause scarring.

Subject term: Environmental, health and safety issues

See also: Letter by Ryman-Rasmussen et al.


Bioimaging: Second window for in vivo imaging pp710 - 711

Andrew M. Smith, Michael C. Mancini & Shuming Nie

doi:10.1038/nnano.2009.326

Enhanced fluorescence from carbon nanotubes and advances in near-infrared cameras have opened up a new wavelength window for small animal imaging.

Subject term: Nanomedicine

See also: Article by Welsher et al.


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Review

Principles and applications of nanofluidic transport pp713 - 720

W. Sparreboom, A. van den Berg & J. C. T. Eijkel

doi:10.1038/nnano.2009.332

The emergence of new fluid phenomena at the nanoscale will have applications in separation science and energy conversion.

Subject term: Nanofluidics


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Letters

Self-assembly of soft nanoparticles with tunable patchiness pp721 - 726

Thomas M. Hermans, Maarten A. C. Broeren, Nikos Gomopoulos, Paul van der Schoot, Marcel H. P. van Genderen, Nico A. J. M. Sommerdijk, George Fytas & E. W. Meijer

doi:10.1038/nnano.2009.232

Nanoparticles with dynamic patches can form reversible self-assembled structures in aqueous solution that become topologically more connected on dilution.

Subject terms: Molecular self-assembly | Nanoparticles


Ultrahigh-density phase-change data storage without the use of heating pp727 - 731

Ara Jo, Wonchul Joo, Won-Hyeog Jin, Hyojin Nam & Jin Kon Kim

doi:10.1038/nnano.2009.260

A data-storage density of 1 Tb in−2 has been demonstrated in phase-change memory without the use of heating.

Subject terms: Electronic properties and devices | Nanomaterials | Surface patterning and imaging

See also: News and Views by Russell & Lee


Strain engineering and one-dimensional organization of metal–insulator domains in single-crystal vanadium dioxide beams pp732 - 737

J. Cao, E. Ertekin, V. Srinivasan, W. Fan, S. Huang, H. Zheng, J. W. L. Yim, D. R. Khanal, D. F. Ogletree, J. C. Grossman & J. Wu

doi:10.1038/nnano.2009.266

Strain has been used to engineer the structure of metallic and insulating domains in vanadium dioxide, such that a Mott transition can take place at room temperature.

Subject terms: Electronic properties and devices | NEMS | Structural properties


Electrochromatic carbon nanotube/polydiacetylene nanocomposite fibres pp738 - 741

Huisheng Peng, Xuemei Sun, Fangjing Cai, Xuli Chen, Yinchao Zhu, Guipan Liao, Daoyong Chen, Qingwen Li, Yunfeng Lu, Yuntian Zhu & Quanxi Jia

doi:10.1038/nnano.2009.264

Nanocomposite fibres that display rapid and reversible changes of colour when an electric current is passed through them could have applications in sensing.

Subject terms: Electronic properties and devices | Nanomaterials | Organic-inorganic nanostructures


Selective and sensitive detection of metal ions by plasmonic resonance energy transfer-based nanospectroscopy pp742 - 746

Yeonho Choi, Younggeun Park, Taewook Kang & Luke P. Lee

doi:10.1038/nnano.2009.258

Metal-ion detection on the basis of plasmonic resonance energy transfer is proposed and demonstrated in a proof-of-concept experiment by detecting copper ions down to one nanomole with high selectively.

Subject term: Nanosensors and other devices


Inhaled carbon nanotubes reach the subpleural tissue in mice pp747 - 751

Jessica P. Ryman-Rasmussen, Mark F. Cesta, Arnold R. Brody, Jeanette K. Shipley-Phillips, Jeffrey I. Everitt, Earl W. Tewksbury, Owen R. Moss, Brian A. Wong, Darol E. Dodd, Melvin E. Andersen & James C. Bonner

doi:10.1038/nnano.2009.305

Multiwalled carbon nanotubes inhaled by mice reach the outer lining of the lungs and cause unique pathological changes.

Subject term: Environmental, health and safety issues

See also: News and Views by Donaldson & Poland


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Articles

Anticipating the perceived risk of nanotechnologies pp752 - 758

Terre Satterfield, Milind Kandlikar, Christian E. H. Beaudrie, Joseph Conti & Barbara Herr Harthorn

doi:10.1038/nnano.2009.265

A meta-analysis of surveys of public attitudes to nanotechnology reveals that public perceptions are malleable, so new methods for understanding future responses need to be developed.

Subject term: Ethical, legal and other societal issues

See also: News and Views by Kahan


All-electric quantum point contact spin-polarizer pp759 - 764

P. Debray, S. M. S. Rahman, J. Wan, R. S. Newrock, M. Cahay, A. T. Ngo, S. E. Ulloa, S. T. Herbert, M. Muhammad & M. Johnson

doi:10.1038/nnano.2009.240

Experimental evidence is presented showing that strong spin polarization in side-gated quantum point contacts can be achieved electrically, making these structures attractive for future spintronic applications.

Subject term: Nanomagnetism and spintronics


Translocation of double-stranded DNA through membrane-adapted phi29 motor protein nanopores pp765 - 772

David Wendell, Peng Jing, Jia Geng, Varuni Subramaniam, Tae Jin Lee, Carlo Montemagno & Peixuan Guo

doi:10.1038/nnano.2009.259

Proteins isolated from a specific type of virus have channels that are wide enough to allow double-stranded DNA to pass through, offering a new conductive biological pore for various applications including DNA sequencing.

Subject term: Nanobiotechnology


A route to brightly fluorescent carbon nanotubes for near-infrared imaging in mice pp773 - 780

Kevin Welsher, Zhuang Liu, Sarah P. Sherlock, Joshua Tucker Robinson, Zhuo Chen, Dan Daranciang & Hongjie Dai

doi:10.1038/nnano.2009.294

Single-walled carbon nanotubes can be modified into bright and biocompatible agents for high resolution whole-animal imaging at wavelengths in the 1100–1700 nm region.

Subject terms: Electronic properties and devices | Nanomaterials | Organic-inorganic nanostructures

See also: News and Views by Smith et al.


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