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Nature Nanotechnology Contents August 2017 Volume 12 Number 8 pp713-832

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Nature Nanotechnology



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TABLE OF CONTENTS

August 2017 Volume 12, Issue 8

Editorial
Commentaries
Research Highlights
News and Views
Perspectives
Letters
Articles
Corrigendum
In The Classroom
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Focus

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Environmental assessment
Engineered nanomaterials are already in use in a wide range of applications, and their everyday presence is only going to increase in the future. With such widespread potential use, the implications for the environment must be carefully evaluated to ensure that nanotechnology-enabled products are properly regulated. This special issue focuses on risk assessment and life-cycle assessment and their use in evaluating the impact of nanomaterials on the environment from different points of view. We also consider the need for stronger regulations and more effective communication about the risks posed by nanomaterials for insurance purposes.
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Editorial

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Joining forces   p713
doi:10.1038/nnano.2017.169
Risk assessment and life-cycle assessment provide complementary information on the impact of a technology on the environment. We present diverging opinions on how to integrate the two approaches to best evaluate the environmental impact of engineered nanomaterials.

Commentaries

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React now regarding nanomaterial regulation   pp714 - 716
Steffen Foss Hansen
doi:10.1038/nnano.2017.163
The time has come to implement a regulatory framework tailored to manufactured materials. I propose a new legislative framework that combines registration, evaluation, authorization and categorization of nanomaterials.

Insuring nanotech requires effective risk communication   pp717 - 719
Finbarr Murphy, Martin Mullins, Karena Hester, Allen Gelwick, Janeck J. Scott-Fordsmand and Trevor Maynard
doi:10.1038/nnano.2017.162
The absence of nanotechnology-specific insurance policies could be detrimental to the development of the nanotechnology industry. Better communication between insurers and scientists is an essential step to provide a regulatory framework protecting both producers and consumers.

Research Highlights

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Our choice from the recent literature   p721
Olga Bubnova, Alberto Moscatelli, Chiara Pastore and Wenjie Sun
doi:10.1038/nnano.2017.171

News and Views

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Neuromorphic computation: Sparse codes from memristor grids   pp722 - 723
Bruno A. Olshausen and Christopher J. Rozell
doi:10.1038/nnano.2017.112
The adjustable resistive state of memristors makes it possible to implement sparse coding algorithms naturally and efficiently.

See also: Article by Sheridan et al.

Photodetectors: A heated junction   pp723 - 724
Ming Zhou and Zongfu Yu
doi:10.1038/nnano.2017.97
Resonant photonic structures made of thermoelectric materials can convert light into electricity without wavelength limitations.

See also: Article by Mauser et al.

Ferroelectric materials: Walls and memory   p724
Giacomo Prando
doi:10.1038/nnano.2017.166

Molecular diodes: Breaking the Landauer limit   pp725 - 726
Nicolas Clement and Akira Fujiwara
doi:10.1038/nnano.2017.123
A diode made of a self-assembly monolayer with ferrocenyl termini shows an on/off ratio of ∼105.

See also: Article by Chen et al.

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Perspectives

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Setting the stage for debating the roles of risk assessment and life-cycle assessment of engineered nanomaterials   pp727 - 733
Jeroen B. Guinée, Reinout Heijungs, Martina G. Vijver and Willie J. G. M. Peijnenburg
doi:10.1038/nnano.2017.135
Risk assessment and life cycle assessment are both needed in the environmental evaluation of engineered nanomaterials. Scientists from both fields should collaborate intensively to deal with mutual challenges to achieve a complete and comprehensive assessment.

Evaluating nanotechnology opportunities and risks through integration of life-cycle and risk assessment   pp734 - 739
Michael P. Tsang, Emi Kikuchi-Uehara, Guido W. Sonnemann, Cyril Aymonier and Masahiko Hirao
doi:10.1038/nnano.2017.132
The advantages and challenges of integrating the methods of life-cycle assessment and risk assessment are discussed in terms of the objectives for evaluating nanotechnologies in a safe and sustainable way.

Integrate life-cycle assessment and risk analysis results, not methods   pp740 - 743
Igor Linkov, Benjamin D. Trump, Ben A. Wender, Thomas P. Seager, Alan J. Kennedy and Jeffrey M. Keisler
doi:10.1038/nnano.2017.152
Integrating life-cycle assessment and risk assessment makes sense only after results have been obtained in parallel from each procedure.

Letters

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Janus monolayers of transition metal dichalcogenides   pp744 - 749
Ang-Yu Lu, Hanyu Zhu, Jun Xiao, Chih-Piao Chuu, Yimo Han, Ming-Hui Chiu, Chia-Chin Cheng, Chih-Wen Yang, Kung-Hwa Wei, Yiming Yang, Yuan Wang, Dimosthenis Sokaras, Dennis Nordlund, Peidong Yang, David A. Muller, Mei-Yin Chou, Xiang Zhang and Lain-Jong Li
doi:10.1038/nnano.2017.100
A novel synthetic approach makes it possible to grow MoS2 monolayers where S is fully replaced with Se atoms only in the top layer.

Nanoscale manipulation of membrane curvature for probing endocytosis in live cells   pp750 - 756
Wenting Zhao, Lindsey Hanson, Hsin-Ya Lou, Matthew Akamatsu, Praveen D. Chowdary, Francesca Santoro, Jessica R. Marks, Alexandre Grassart, David G. Drubin, Yi Cui and Bianxiao Cui
doi:10.1038/nnano.2017.98
Nanoscale plasma membrane curvature, generated in a controllable fashion by vertically aligned nanostructure arrays, promotes the accumulation of key endocytic proteins in live cells.

Enhanced valley splitting in monolayer WSe2 due to magnetic exchange field   pp757 - 762
Chuan Zhao, Tenzin Norden, Peiyao Zhang, Puqin Zhao, Yingchun Cheng, Fan Sun, James P. Parry, Payam Taheri, Jieqiong Wang, Yihang Yang, Thomas Scrace, Kaifei Kang, Sen Yang, Guo-xing Miao, Renat Sabirianov, George Kioseoglou, Wei Huang, Athos Petrou and Hao Zeng
doi:10.1038/nnano.2017.68
Magnetic exchange field from an EuS substrate breaks the valley degeneracy for monolayer WSe2, leading to enhanced valley splitting.

Multivalent bi-specific nanobioconjugate engager for targeted cancer immunotherapy   pp763 - 769
Hengfeng Yuan, Wen Jiang, Christina A. von Roemeling, Yaqing Qie, Xiujie Liu, Yuanxin Chen, Yifan Wang, Robert E. Wharen, Kyuson Yun, Guojun Bu, Keith L. Knutson and Betty Y. S. Kim
doi:10.1038/nnano.2017.69
A multivalent bi-specific nanoconjugate can promote immune cells to recognize and eradicate cancer cells in a receptor targeted manner, leading to the generation of potent and durable anti-tumour immunity.

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Articles

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Resonant thermoelectric nanophotonics   pp770 - 775
Kelly W. Mauser, Seyoon Kim, Slobodan Mitrovic, Dagny Fleischman, Ragip Pala, K. C. Schwab and Harry A. Atwater
doi:10.1038/nnano.2017.87
Subwavelength nanostructures generate a localized thermoelectric voltage for non-bandgap-limited photodetection.

See also: News and Views by Zhou & Yu

Ultracoherent nanomechanical resonators via soft clamping and dissipation dilution   pp776 - 783
Y. Tsaturyan, A. Barg, E. S. Polzik and A. Schliesser
doi:10.1038/nnano.2017.101
Soft phononic clamping dilutes the intrinsic dissipation of a mechanical resonator's material by five orders of magnitude, enabling a record value of the product between frequency and quality factor at room temperature, and mechanical coherence times otherwise only available in optical or Paul traps.

Sparse coding with memristor networks   pp784 - 789
Patrick M. Sheridan, Fuxi Cai, Chao Du, Wen Ma, Zhengya Zhang and Wei D. Lu
doi:10.1038/nnano.2017.83
The implementation of bio-inspired sparse coding algorithms aimed at image processing is demonstrated by exploiting 32 × 32 crossbar arrays of analogue memristors.

See also: News and Views by Olshausen & Rozell

Size effect and scaling power-law for superelasticity in shape-memory alloys at the nanoscale   pp790 - 796
Jose F. Gómez-Cortés, Maria L. Nó, Iñaki López-Ferreño, Jesús Hernández-Saz, Sergio I. Molina, Andrey Chuvilin and Jose M. San Juan
doi:10.1038/nnano.2017.91
The stress-induced martensitic transformation in shape-memory alloys shows a strong size-effect on the critical stress for superelasticity.

Molecular diodes with rectification ratios exceeding 105 driven by electrostatic interactions   pp797 - 803
Xiaoping Chen, Max Roemer, Li Yuan, Wei Du, Damien Thompson, Enrique del Barco and Christian A. Nijhuis
doi:10.1038/nnano.2017.110
A self-assembled monolayer with terminal ferrocene groups involves a different number of molecules in the transport of charges depending on the polarity of the voltage bias.

See also: News and Views by Clement & Fujiwara

Nanofluidic device for continuous multiparameter quality assurance of biologics   pp804 - 812
Sung Hee Ko, Divya Chandra, Wei Ouyang, Taehong Kwon, Pankaj Karande and Jongyoon Han
doi:10.1038/nnano.2017.74
A nanofluidic device can enable on-site monitoring and real-time quality assurance of biologics throughout bio-manufacturing processes.

In situ programming of leukaemia-specific T cells using synthetic DNA nanocarriers   pp813 - 820
Tyrel T. Smith, Sirkka B. Stephan, Howell F. Moffett, Laura E. McKnight, Weihang Ji, Diana Reiman, Emmy Bonagofski, Martin E. Wohlfahrt, Smitha P. S. Pillai and Matthias T. Stephan
doi:10.1038/nnano.2017.57
DNA-carrying nanoparticles can efficiently introduce leukaemia-targeting CAR genes into T cell nuclei, thereby inducing long-term disease remission.

Sulfated glycopeptide nanostructures for multipotent protein activation   pp821 - 829
Sungsoo S. Lee, Timmy Fyrner, Feng Chen, Zaida Álvarez, Eduard Sleep, Danielle S. Chun, Joseph A. Weiner, Ralph W. Cook, Ryan D. Freshman, Michael S. Schallmo, Karina M. Katchko, Andrew D. Schneider, Justin T. Smith, Chawon Yun, Gurmit Singh, Sohaib Z. Hashmi, Mark T. McClendon, Zhilin Yu, Stuart R. Stock, Wellington K. Hsu, Erin L. Hsu and Samuel I. Stupp
doi:10.1038/nnano.2017.109
Highly bioactive supramolecular nanostructures displaying sulfated glycopeptides on their surfaces were designed in order to mimic the polysaccharides that bind and activate a plethora of proteins in mammalian biology during development and tissue regeneration.

Corrigendum

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Corrigendum: Room-temperature chiral magnetic skyrmions in ultrathin magnetic nanostructures   p830
Olivier Boulle, Jan Vogel, Hongxin Yang, Stefania Pizzini, Dayane de Souza Chaves, Andrea Locatelli, Tevfik Onur Mentes, Alessandro Sala, Liliana D. Buda-Prejbeanu, Olivier Klein, Mohamed Belmeguenai, Yves Roussigné, Andrey Stashkevich, Salim Mourad Chérif, Lucia Aballe, Michael Foerster, Mairbek Chshiev, Stéphane Auffret, Ioan Mihai Miron and Gilles Gaudin
doi:10.1038/nnano.2017.165

In The Classroom

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Introducing the nanoworld   p832
Themis Prodromakis
doi:10.1038/nnano.2017.164
Themis Prodromakis explains how to engage primary school students in nanotechnology - even outside the classroom.

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