Nat. Catal.-Cu catalysts for Selective C–C coupling

Metal ion cycling of Cu foil for selective C–C coupling in electrochemical CO2 reduction

Kun Jiang, Robert B. Sandberg, Austin J. Akey, Xinyan Liu, David C. Bell, Jens K. Nørskov, Karen Chan & Haotian Wang
1.Rowland Institute, Harvard University, Cambridge, MA, USA
2.SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, CA, USA
3.SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
Nature Catalysis volume 1, pages 111–119 (2018)
doi:10.1038/s41929-017-0009-x
© 2018 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.

By tuning the facet exposure on Cu foil through the metal ion battery cycling, selective C-C coupling was achieved with a highest C2+ Faradaic efficiency of over 60%, H2 below 20%, and a corresponding C2+ partial current density of more than 40 mA/cm2.

Image: Demin Liu (MolGraphics), Kun Jiang (Harvard University) and Haotian Wang (Harvard University). Cover Design: Karen Moore.

BIOPHYS. J.-PyContact

PyContact: Rapid, Customizable, and Visual Analysis of Noncovalent Interactions in MD Simulations

Maximilian Scheurer, Peter Rodenkirch, Marc Siggel, Rafael C. Bernardi, Klaus Schulten, Emad Tajkhorshid, Till Rudack

1.NIH Center for Macromolecular Modeling and Bioinformatics, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois
2.Department of Biochemistry, Center for Biophysics and Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois
3.Department of Biophysics, Ruhr University Bochum, Bochum, Germany
DOI: https://doi.org/10.1016/j.bpj.2017.12.003
Copyright © 2017 Elsevier Inc. except certain content provided by third parties

Protein contacts are vital in many biological processes. PyContact is a novel tool developed to identify, analyze, and visualize these contacts in molecular dynamics simulations.

Science-Single-stranded DNA and RNA origami

Single-stranded DNA and RNA origami

Dongran Han1,2,*, Xiaodong Qi3,4,*, Cameron Myhrvold1,2, Bei Wang2,5, Mingjie Dai1,2, Shuoxing Jiang3,4, Maxwell Bates6, Yan Liu3,4, Byoungkwon An6,†, Fei Zhang3,4,†, Hao Yan3,4,†, Peng Yin1,2,†
1.Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA.
2.Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA.
3.Biodesign Center for Molecular Design and Biomimetics Biodesign Institute, Tempe, AZ 85287, USA.
4.School of Molecular Sciences, Arizona State University, Tempe, AZ 85287, USA.
5.Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
6.BioNano Research Group, Autodesk Life Sciences, Pier 9, San Francisco, CA 94111, USA.

Science  15 Dec 2017:
Vol. 358, Issue 6369, eaao2648
DOI: 10.1126/science.aao2648
© 2017 American Association for the Advancement of Science. All rights reserved. AAAS is a partner of HINARI, AGORA, OARE, CHORUS, CLOCKSS, CrossRef and COUNTER. Science ISSN 1095-9203

Unimolecular folding of single-stranded DNA and RNA origami into user-specified shapes.

3D animation:

 

 

Chem- Artificial Photosynthesis

Transition-Metal Single Atoms in a Graphene Shell as Active Centers for Highly Efficient Artificial Photosynthesis

Kun Jiang, Samira Siahrostami, Austin J. Akey, Yanbin Li, Zhiyi Lu, Judith Lattimer, Yongfeng Hu, Chris Stokes, Mahesh Gangishetty, Guangxu Chen, Yawei Zhou, Winfield Hill, Wen-Bin Cai, David Bell, Karen Chan, Jens K. Nørskov, Yi Cui, Haotian Wang
1.Rowland Institute, Harvard University, Cambridge, MA 02142, USA
DOI: http://dx.doi.org/10.1016/j.chempr.2017.09.014
Received: August 1, 2017; Received in revised form: September 15, 2017; Accepted: September 26, 2017; Published: October 19, 2017 © 2017 Elsevier Inc.

Single Ni atoms coordinated in graphene served as active centers for aqueous CO2 reduction to CO with high faradic effciencies over 90% under significant currents up to ~60 mA/mg.

 

 

JACS-Cellulosomal Scaffoldin Mechanics

Combining in Vitro and in Silico Single-Molecule Force Spectroscopy to Characterize and Tune Cellulosomal Scaffoldin Mechanics

Tobias Verdorfer†, Rafael C. Bernardi‡, Aylin Meinhold†, Wolfgang Ott†, Zaida Luthey-Schulten‡§, Michael A. Nash*∥⊥, and Hermann E. Gaub† 
† Lehrstuhl für Angewandte Physik and Center for Nanoscience, Ludwig-Maximilians-Universität, 80799 Munich, Germany
‡ Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
Department of Chemistry, University of Basel, 4056 Basel, Switzerland
Department of Biosystems Science and Engineering, Swiss Federal Institute of Technology (ETH Zurich), 4058 Basel, Switzerland
J. Am. Chem. Soc., 2017, 139 (49), pp 17841–17852
DOI: 10.1021/jacs.7b07574
Publication Date (Web): October 23, 2017
Copyright © 2017 American Chemical Society

The force induced unfolding behavior of all cohesins from the scaffoldin ScaA was successfully characterized by combining in vitro and in silico single-molecule force spectroscopy.

Science-A cargo-sorting DNA robot

A cargo-sorting DNA robot

Anupama J. Thubagere1, Wei Li1, Robert F. Johnson1, Zibo Chen1, Shayan Doroudi2, Yae Lim Lee3, Gregory Izatt2,4, Sarah Wittman2, Niranjan Srinivas4, Damien Woods2,*, Erik Winfree1,2,4, Lulu Qian1,2,†
1. Bioengineering, California Institute of Technology, Pasadena, CA 91125, USA.
2. Computer Science, California Institute of Technology, Pasadena, CA 91125, USA.
3. Electrical Engineering, California Institute of Technology, Pasadena, CA 91125, USA.
4. Computation and Neural Systems, California Institute of Technology, Pasadena, CA 91125, USA.
DOI: 10.1126/science.aan6558
© 2017 American Association for the Advancement of Science. All rights Reserved. AAAS is a partner of HINARI, AGORA OARE, PatientInform, CHORUS, CLOCKSS, CrossRef and COUNTER. Science ISSN 1095-9203.

Single-stranded DNA robots with three modular functional domains were designed to move over the surface of a DNA origami sheet and sort molecular cargoes with no additional power input.

Adv. Funct. Mater-Micromotors

Bioinspired Spiky Micromotors Based on Sporopollenin Exine Capsules

Hong Wang1, Michael G. Potroz2, Joshua A. Jackman2, Bahareh Khezri1, Tijana Marić1, Nam-Joon Cho2,3 and Martin Pumera1,*
1. Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore
2. School of Materials Science and Engineering and Centre for Biomimetic Sensor Science, Nanyang Technological University, Singapore, Singapore
3. School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
DOI: 10.1002/adfm.201702338
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

A bioinspired spiky micromotor was designed based on sporopollenin exine capsules where bubble generated on the surface propels the capsules to transport cargo or decontaminate heavy metals.

 

 

ANGEWANDTE-NIR ABSORBING J-AGGREGATE

Near-IR Absorbing J-Aggregate of an Amphiphilic BF2-Azadipyrromethene Dye by Kinetic Cooperative Self-Assembly

Prof. Zhijian Chen1,*, Yong Liu1, Wolfgang Wagner2, Dr. Vladimir Stepanenko2, Dr. Xiangkui Ren1, Dr. Soichiro Ogi2 and Prof. Frank Würthner2*
1.School of Chemical Engineering and Technology, Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin), Tianjin University, Tianjin, China
2.Institut für Organische Chemie, Center for Nanosystems Chemistry and Bavarian Polymer Institute (BPI), Universität Würzburg, Würzburg, Germany
DOI: 10.1002/anie.201701788
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

A new amphiphilic BF2-azadipyrromethene (aza-BODIPY) dye was synthesized and the formation of the J-aggregates with distinct near-infrared optical properties was investigated.

Nature Photonics-Phase-locked laser arrays

Phase-locked laser arrays through global antenna mutual coupling

Tsung-Yu KaoJohn L. RenoQing Hu
1.Department of Electrical Engineering and Computer Science and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
Tsung-Yu Kao &Qing Hu
2.LongWave Photonics LLC, Mountain View, California 94043, USA
Tsung-Yu Kao
3.Sandia National Laboratories, Center of Integrated Nanotechnologies, MS 1303, Albuquerque, New Mexico 87185-130, USA
John L. Reno
DOI:10.1038/nphoton.2016.104
© 2016 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.

A new approach to laser design utilizing a conceptually novel phase-locking mechanism based on "antenna mutual coupling" where different laser elements interact with each other through far-field radiations with definite phase relations.

IMAGE: D. LIU, T.-Y. KAO AND Q. HU

COVER DESIGN: BETHANY VUKOMANOVIC

NATURE ENERGY-SOLID OXYGEN BATTERY

ANION-REDOX NANOLITHIA CATHODES FOR LI-ION BATTERIES

Zhi ZhuAkihiro KushimaZongyou YinLu QiKhalil AmineJun Lu & Ju Li
1.Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
Zhi Zhu, Akihiro Kushima, Zongyou Yin & Ju Li
2.Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
Zhi Zhu, Akihiro Kushima, Zongyou Yin & Ju Li
3.College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
Lu Qi
4.Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
Khalil Amine & Jun Lu
DOI:10.1038/nenergy.2016.111
© 2016 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.

A cobalt oxide confined nanolithia cathode allows charge and discharge without generating any gas molecules. This new material is also self-protected from overcharging by the cycling reaction of self-generated radical species.

Chem. Mater.-DNA Nanofabrication

Bottom-up Nanofabrication Using DNA Nanostructures

Zhenbo Peng§ and Haitao Liu*§
 Chemical Engineering College, Ningbo Polytechnic, 1069 Xinda Road, Economical & Technical Development Zone, Ningbo 315800, P. R. China
§ Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
Chem. Mater., 201628 (4), pp 1012–1021
DOI: 10.1021/acs.chemmater.5b04218
Publication Date (Web): January 06, 2016
Copyright © 2016 American Chemical Society
In this Perspective,  the authors highlighted the most recent progresses in DNA nanotechnology, including the fabrication of DNA nanostructures, DNA-based assembly of molecules and nanomaterials, and DNA-based nanofabrication and nanolithography.

Nano Letters-Mapping Mechanical Force Propagation through Biomolecular Complexes

Mapping Mechanical Force Propagation through Biomolecular Complexes

Constantin SchoelerRafael C. BernardiKlara H. MalinowskaEllis DurnerWolfgang Ott§Edward A. BayerKlaus SchultenMichael A. Nash*, and Hermann E. Gaub
 Lehrstuhl für Angewandte Physik and Center for Nanoscience, Ludwig-Maximilians-Universität, 80799 Munich, Germany
 Theoretical and Computational Biophysics Group, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
§ Center for Integrated Protein Science Munich (CIPSM), University of Munich, 81377 Munich, Germany
∥ Department of Biological Chemistry, The Weizmann Institute of Science, Rehovot 76100, Israel
⊥ Department of Physics, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
Nano Lett., 2015, 15 (11), pp 7370–7376
DOI: 10.1021/acs.nanolett.5b02727
Publication Date (Web): August 11, 2015
Copyright © 2015 American Chemical Society
Single-molecule force spectroscopy with an atomic force microscope (AFM) and steered molecular dynamics (SMD) simulations revealed force propagation pathways through a mechanically ultrastable multidomain cellulosome protein complex.

nalefd_v015i011.indd

Nanomedicine Applications of NMOFs and NCPs

Nanomedicine Applications of Hybrid Nanomaterials Built from Metal–Ligand Coordination Bonds: Nanoscale Metal–Organic Frameworks and Nanoscale Coordination Polymers

Chunbai HeDemin Liu, and Wenbin Lin
Department of Chemistry, University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
Chem. Rev., 2015, 115 (19), pp 11079–11108
DOI: 10.1021/acs.chemrev.5b00125
Publication Date (Web): August 27, 2015
Copyright © 2015 American Chemical Society
In this review article, the authors summarized the development of NMOFs/NCPs for biomedical applicatons, including the synthetic techniques, surface modifications, and their applications in drug delivery and therapy, imaging, and sensing.

Nanomedicine Applications of NMOFs and NCPs

Nature-Ring of Exceptional Points on a Dirac Cone

Spawning rings of exceptional points out of Dirac cones

Bo ZhenChia Wei HsuYuichi IgarashiLing LuIdo KaminerAdi PickSong-Liang ChuaJohn D. JoannopoulosMarin Soljačić
Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
Department of Applied Physics, Yale University, New Haven, Connecticut 06520, USA
Smart Energy Research Laboratories, NEC Corporation, 34 Miyuiga-ka, Tsukuba, Ibaraki 305-8501, Japan
Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
DSO National Laboratories, 20 Science Park Drive, Singapore 118230, Singapore
Nature 525,354–358(17 September 2015) 
DOI: 10.1038/nature14889
© 2015 Macmillan Publishers Limited. All Rights Reserved.
The first experimental demonstration of a ring of exceptional points in a photonic crystal slab. This groundbreaking research could potentially lead to more powerful lasers, precise optical sensors, and other devices.

Cell Systems-Modular Viral Scaffolds for Targeted Bacterial Population Editing

Engineering Modular Viral Scaffolds for Targeted Bacterial Population Editing

Hiroki Ando1, Sebastien Lemire1, Diana P. Pires1,2, Timothy K. Lu1
1
 Department of Electrical Engineering and Computer Science and Department of Biological Engineering, Synthetic Biology Center, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
2 Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
Cell Systems, Volume 1, Issue 3, 23 September 2015, Pages 187–196
DOI: http://dx.doi.org/10.1016/j.cels.2015.08.013
Copyright © 2015 Elsevier B.V. or its licensors or contributors. ScienceDirect® is a registered trademark of Elsevier B.V.
A synthetic biology strategy to modulate phage host ranges by engineering phage genomes in Saccharomyces cerevisiae. This innovative approach could potentially accelerate phage biology studies and enable new technologies for bacterial population editing.

Modular Viral Scaffolds

Advanced Materials-Polymer Solar Cells

Fine-Tuning the 3D Structure of Nonfullerene Electron Acceptors Toward High-Performance Polymer Solar Cells

Haiyan Li, Ye-Jin Hwang, Brett A. E. Courtright, Frank N. Eberle, Selvam Subramaniyan and Samson A. Jenekhe*
Article first published online: 1 JUN 2015
DOI: 10.1002/adma.201570147
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
By tuning the 3D molecular structure of nonfullerene electron acceptors while keeping HOMO/LUMO energy levels constant, a dramatic variation of power conversion efficiency from 2.6% to 6.4% was achieved.

Polymer Solar Cells