Tuesday, June 6, 2017

Nature Nanotechnology Contents June 2017 Volume 12 Number 6 pp497-596

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Nature Nanotechnology

Collection: Nature Research Tech Collection

The Nature Research Tech Collection is the home for life-science technology from across the Nature Research portfolio. Here, we highlight the technology behind the science, and provide current and need-to-know information that scientists can implement in their own labs

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June 2017 Volume 12, Issue 6

Research Highlights
News and Views
In The Classroom
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More carbon and less salt   p497
We take a closer look at recent developments in research on various strategies to use carbon nanostructures for water desalination.

Research Highlights


Our choice from the recent literature   p499
Alberto Moscatelli, Giacomo Prando and Wenjie Sun

News and Views


Ion sieving and desalination: Energy penalty for excess baggage   pp500 - 501
Ram Devanathan
Permeation experiments and simulations show that physically confined graphene oxide allows water molecules to pass through while hindering hydrated ions

See also: Letter by Abraham et al.

Thermal desalination membranes: Carbon nanotubes keep up the heat   pp501 - 503
Chanhee Boo and Menachem Elimelech
Applying high-potential alternating current to a carbon-nanotube-polymer composite film provides a self-heating membrane that enhances desalination performance of high-salinity brines by membrane distillation.

See also: Article by Dudchenko et al.

Lithium-oxygen batteries: The reaction mechanism revealed   pp503 - 504
Yang-Kook Sun and Chong S. Yoon
Using in situ environmental transmission electron microscopy, the structural and phase changes of the reaction products of an air cathode during discharging and charging can be visualized in real time.

See also: Letter by Luo et al.

Nanomachines: A light-powered clockwork   pp504 - 506
Chenfeng Ke
An organogel is made of molecular motors and modulators that act cooperatively to perform a full mechanical cycle of contraction and expansion at the macroscale.

See also: Letter by Foy et al.

Water remediation: A steam nanogenerator   p506
Giacomo Prando

Directed self-assembly: A dress code for block copolymers   pp507 - 508
Christopher K. Ober
A sacrificial overcoat layer directs self-assembly of block copolymers into lamellae with features smaller than 10 nm.

See also: Article by Suh et al.

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Fundamental transport mechanisms, fabrication and potential applications of nanoporous atomically thin membranes   pp509 - 522
Luda Wang, Michael S. H. Boutilier, Piran R. Kidambi, Doojoon Jang, Nicolas G. Hadjiconstantinou and Rohit Karnik
This Review examines the development of nanoporous atomically thin membranes, focusing on fundamental mechanisms of gas- and liquid-phase transport, membrane fabrication techniques, and advances towards practical applications.



The evolving landscape of drug products containing nanomaterials in the United States   pp523 - 529
Sheetal R. D'Mello, Celia N. Cruz, Mei-Ling Chen, Mamta Kapoor, Sau L. Lee and Katherine M. Tyner
Analysis of the development of drug products containing nanomaterials identifies several trends as well as the relative rate of approval of these products.



High electron mobility and quantum oscillations in non-encapsulated ultrathin semiconducting Bi2O2Se   pp530 - 534
Jinxiong Wu, Hongtao Yuan, Mengmeng Meng, Cheng Chen, Yan Sun, Zhuoyu Chen, Wenhui Dang, Congwei Tan, Yujing Liu, Jianbo Yin, Yubing Zhou, Shaoyun Huang, H. Q. Xu, Yi Cui, Harold Y. Hwang, Zhongfan Liu, Yulin Chen, Binghai Yan and Hailin Peng
Air-stable, non-encapsulated Bi2O2Se ultrathin films grown by chemical vapour deposition display high electron mobility and exceptional semiconducting transport properties, making the observation of quantum oscillations possible and suggesting potential applications in electronics.

Revealing the reaction mechanisms of Li–O2 batteries using environmental transmission electron microscopy   pp535 - 539
Langli Luo, Bin Liu, Shidong Song, Wu Xu, Ji-Guang Zhang and Chongmin Wang
In situ characterization of the full reaction pathways of a solid state LiO2 battery shows the formation of hollow nanostructures as a result of the interplay between lithium ion diffusion, electron transport and oxygen gas evolution at the cathode.

See also: News and Views by Sun & Yoon

Dual-light control of nanomachines that integrate motor and modulator subunits   pp540 - 545
Justin T. Foy, Quan Li, Antoine Goujon, Jean-Rémy Colard-Itté, Gad Fuks, Emilie Moulin, Olivier Schiffmann, Damien Dattler, Daniel P. Funeriu and Nicolas Giuseppone
A set of independently light-controlled motor and modulator subunits embedded in a polymer gel matrix enables controlled macroscopic expansion and retraction of the material.

See also: News and Views by Ke

Tunable sieving of ions using graphene oxide membranes   pp546 - 550
Jijo Abraham, Kalangi S. Vasu, Christopher D. Williams, Kalon Gopinadhan, Yang Su, Christie T. Cherian, James Dix, Eric Prestat, Sarah J. Haigh, Irina V. Grigorieva, Paola Carbone, Andre K. Geim and Rahul R. Nair
Ion permeation and selectivity of graphene oxide membranes with sub-nm channels dramatically alters with the change in interlayer distance due to dehydration effects whereas permeation of water molecules remains largely unaffected.

See also: News and Views by Devanathan

Collective helicity switching of a DNA–coat assembly   pp551 - 556
Yongju Kim, Huichang Li, Ying He, Xi Chen, Xiaoteng Ma and Myongsoo Lee
A virus-like artificial structure responds to variations in pH by switching helicity.

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Frequency-dependent stability of CNT Joule heaters in ionizable media and desalination processes   pp557 - 563
Alexander V. Dudchenko, Chuxiao Chen, Alexis Cardenas, Julianne Rolf and David Jassby
Electro-oxidation of CNT Joule heaters can be eliminated through the application of sufficiently high a.c. frequencies, which enables their use as self-heating membranes in membrane distillation.

See also: News and Views by Boo & Elimelech

Quantized edge modes in atomic-scale point contacts in graphene   pp564 - 568
Amogh Kinikar, T. Phanindra Sai, Semonti Bhattacharyya, Adhip Agarwala, Tathagata Biswas, Sanjoy K. Sarker, H. R. Krishnamurthy, Manish Jain, Vijay B. Shenoy and Arindam Ghosh
Graphene nanoconstrictions achieved via mechanical exfoliation of highly oriented pyrolytic graphite evidence clear signatures of one-dimensional transport via zigzag edges.

Magnetic polaron on dangling-bond spins in CdSe colloidal nanocrystals   pp569 - 574
Louis Biadala, Elena V. Shornikova, Anna V. Rodina, Dmitri R. Yakovlev, Benjamin Siebers, Tangi Aubert, Michel Nasilowski, Zeger Hens, Benoit Dubertret, Alexander L. Efros and Manfred Bayer
Nonmagnetic colloidal nanocrystals demonstrate magnetic properties due to spins of dangling bonds at their surface resulting in formation of dangling-bond magnetic polarons.

Sub-10-nm patterning via directed self-assembly of block copolymer films with a vapour-phase deposited topcoat   pp575 - 581
Hyo Seon Suh, Do Han Kim, Priya Moni, Shisheng Xiong, Leonidas E. Ocola, Nestor J. Zaluzec, Karen K. Gleason and Paul F. Nealey
A thin topcoat that grafts directly to block copolymer films does not need to be removed prior to further fabrication steps.

See also: News and Views by Ober

Confined space facilitates G-quadruplex formation   pp582 - 588
Prakash Shrestha, Sagun Jonchhe, Tomoko Emura, Kumi Hidaka, Masayuki Endo, Hiroshi Sugiyama and Hanbin Mao
DNA origami nanocages are used to directly probe the thermodynamic stability and transition kinetics of G-quadruplex in confined media.

Bypassing adverse injection reactions to nanoparticles through shape modification and attachment to erythrocytes   pp589 - 594
Peter Popp Wibroe, Aaron C. Anselmo, Per H. Nilsson, Apoorva Sarode, Vivek Gupta, Rudolf Urbanics, Janos Szebeni, Alan Christy Hunter, Samir Mitragotri, Tom Eirik Mollnes and Seyed Moein Moghimi
The transitional link from robust clearance of intravenously injected nanoparticles by strategically placed macrophages in systemic circulation to adverse haemodynamic reactions can be overcome by changing nanoparticle geometry or by prior nanoparticle attachment to erythrocytes

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In The Classroom


Teaching nanosafety   p596
Steffen Foss Hansen and Anders Baun
Steffen Foss Hansen and Anders Baun present some of the approaches that they have implemented in their Nanotechnology and the Environment course.

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