Nano Letters
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#1James Cassidy (BGSU: Bowling Green State University)H-Index: 2
#2Mingrui Yang (BGSU: Bowling Green State University)H-Index: 5
Last. John Sanchez (St. Mary's University)
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Electrically coupled quantum dots (QDs) can support unique optoelectronic properties arising from the superposition of single-particle excited states. Experimental methods for integrating colloidal QDs within the same nano-object, however, have remained elusive to the rational design. Here, we demonstrate a chemical strategy that allows for the assembling of colloidal QDs into coupled composites, where proximal interactions give rise to unique optoelectronic behavior. The assembly method employi...
#1Joe Forth (LBNL: Lawrence Berkeley National Laboratory)H-Index: 11
#2Andres Mariano (University of California, Berkeley)
Last. Narayanan Menon (UMass: University of Massachusetts Amherst)H-Index: 27
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Fine control over the mechanical properties of thin sheets underpins transcytosis, cell shape, and morphogenesis. Applying these principles to artificial, liquid-based systems has led to reconfigurable materials for soft robotics, actuation, and chemical synthesis. However, progress is limited by a lack of synthetic two-dimensional membranes that exhibit tunable mechanical properties over a comparable range to that seen in nature. Here, we show that the bending modulus, B, of thin assemblies of ...
#1Lukas Hrachowina (Lund University)H-Index: 2
#2Nicklas Anttu (Åbo Akademi University)
Last. Magnus T. Borgström (Lund University)H-Index: 49
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Nanowire solar cells have the potential to reach the same efficiencies as the world-record III-V solar cells while using a fraction of the material. For solar energy harvesting, large-area nanowire solar cells have to be processed. In this work, we demonstrate the synthesis of epitaxial InP nanowire arrays on a 2 inch wafer. We define five array areas with different nanowire diameters on the same wafer. We use a photoluminescence mapper to characterize the sample optically and compare it to a ho...
#1Akshay A. Murthy (NU: Northwestern University)H-Index: 10
#2Stephanie M. Ribet (NU: Northwestern University)H-Index: 1
Last. Vinayak P. Dravid (NU: Northwestern University)H-Index: 107
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In situ electron microscopy is an effective tool for understanding the mechanisms driving novel phenomena in 2D structures. However, due to practical challenges, it is difficult to address these technologically relevant 2D heterostructures with electron microscopy. Here, we use the differential phase contrast (DPC) imaging technique to build a methodology for probing local electrostatic fields during electrical operation with nanoscale spatial resolution in such materials. We find that, by combi...
#1Yong Ma (Soochow University (Suzhou))H-Index: 8
#2Le Wei (Soochow University (Suzhou))H-Index: 1
Last. Zhao Deng (Soochow University (Suzhou))H-Index: 18
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The deployment of Li metal batteries has been significantly tethered by uncontrollable lithium dendrite growth, especially in heavy-duty operations. Herein, we implement an in situ surface transformation tactic exploiting the vapor-phase solid-gas reaction to construct an artificial solid-electrolyte interphase (SEI) of Li2Se on Li metal anodes. The conformal Li2Se layer with high ionic diffusivity but poor electron conductivity effectively restrains the Li/Li+ redox conversion to the Li/Li2Se i...
#1Jin Yan (Xi'an Jiaotong University)H-Index: 11
#2Yang Wang (Fourth Military Medical University)H-Index: 3
Last. Yong Li (Fourth Military Medical University)
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Critical challenges remain in trauma emergency and surgical procedures involving liver bleeding, particularly in perforating wounds that cannot be pressed and large wounds that cannot be sewn. Self-assembling peptide hydrogels are particularly attractive due to their intrinsic biocompatibility and programmability. Herein, we develop a nano-band-aid (NBA) through a three-stage self-assembly strategy of two functionalized peptides, which were first coassembled into nanofibers and then woven to a m...
#1Hongshuang Qin (USTC: University of Science and Technology of China)H-Index: 6
#2Tingting Cui (USTC: University of Science and Technology of China)H-Index: 3
Last. Xiaogang Qu (USTC: University of Science and Technology of China)H-Index: 102
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Cancer stem cells (CSCs) play crucial roles in tumor initiation. Amyloid β (Aβ), which is associated with Alzheimer's disease (AD), has been identified to induce cytotoxicity in tumor cells besides brain cells. Herein, we find that oligomeric Aβ1-42 and Aβ1-40 (OAβ1-42 and OAβ1-40) can repress the viability of breast CSCs. Intriguingly, OAβ1-42 and OAβ1-40 preferentially induce the growth arrest of breast CSCs by contrast with the bulk cancer cells. Further studies indicate that OAβ1-42 and OAβ1...
#1Fang Wang (Shanxi Teachers University)H-Index: 14
#2Huan Yang (Shanxi Teachers University)H-Index: 1
Last. Xiaohong Xu (Shanxi Teachers University)H-Index: 19
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Magnetic heterostructures offer great promise in spintronic devices due to their unique magnetic properties, such as exchange bias effect, topological superconductivity, and magneto-resistance. Although various magnetic heterostructures including core/shell, multilayer, and van der Waals systems have been fabricated recently, the construction of perfect heterointerfaces usually rely on complicated and high-cost fabrication methods such as molecular-beam epitaxy; surprisingly, few one-dimensional...
#2Petr Bouchal (Brno University of Technology)H-Index: 10
Last. Radim Chmelík (Brno University of Technology)H-Index: 16
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The key information about any nanoscale system relates to the orientations and conformations of its parts. Unfortunately, these details are often hidden below the diffraction limit, and elaborate techniques must be used to optically probe them. Here we present imaging of the 3D rotation motion of metal nanorods, restoring the distinct nanorod orientations in the full extent of azimuthal and polar angles. The nanorods imprint their 3D orientation onto the geometric phase and space-variant polariz...
#1Ali Hallal (UGA: University of Grenoble)H-Index: 14
#2Jinghua Liang (CAS: Chinese Academy of Sciences)H-Index: 6
Last. Mairbek Chshiev (UGA: University of Grenoble)H-Index: 37
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We report a significant Dzyaloshinskii-Moriya interaction (DMI) and perpendicular magnetic anisotropy (PMA) at interfaces comprising hexagonal boron nitride (h-BN) and Co. By comparing the behavior of these phenomena at graphene/Co and h-BN/Co interfaces, it is found that the DMI in the latter increases as a function of Co thickness and beyond three monolayers stabilizes with 1 order of magnitude larger values compared to those at graphene/Co, where the DMI shows opposite decreasing behavior. Me...
Top fields of study
Analytical chemistry
Materials science
Condensed matter physics