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In the present article, the successful coassembly of spherical 6.2 nm maghemite (γ‐Fe2O3) nanocrystals and giant polyoxometalates (POMs) such as 2.9 nm {Mo132} is demonstrated. To do so, colloidal solutions of oleic acid‐capped γ‐Fe2O3 and long‐chain alkylammonium‐encapsulated {Mo132} dispersed in chloroform are mixed together and supported self‐organized binary superlattices are obtained upon the...
Combinations of 2D materials with different physical properties can form heterostructures with modified electrical, mechanical, magnetic, and optical properties. The direct observation of a lateral heterostructure synthesis is reported by epitaxial in‐plane graphene growth from the step‐edge of hexagonal BN (h‐BN) within a scanning transmission electron microscope chamber. Residual hydrocarbon in...
A graphene thermoacoustic loudspeaker with a thin polymer mesh is fabricated using screen‐printing. An experiment with substrates of various free‐standing areas shows that a higher sound pressure level can be achieved as compared to previously reported graphene thermoacoustic loudspeakers. Moreover, a modified equation to predict the sound pressure level of the thermoacoustic loudspeaker with a thin...
Poly(phenylacetylene) (PPA) copolymers containing (R)‐ or (S)‐MPA as minor chiral pendant can be forced to selectively adopt the right‐ o left‐handed helix, in the presence of small amounts of Na+ or Ag+ (“Sergeants and Soldiers Effect”) by addition of a donor cosolvent. The helical sense depends exclusively on the chiral monomer/donor cosolvent ratio, and this allows a perfect on/off tuning of the...
A novel methodology for the isothermal amplification of Leishmania DNA using labeled primers combined with the advantages of magnetic purification/preconcentration and the use of gold nanoparticle (AuNP) tags for the sensitive electrochemical detection of such amplified DNA is developed. Primers labeled with AuNPs and magnetic beads (MBs) are used for the first time for the isothermal amplification...
Bioinspired hierarchical structures on the surface of vertical light‐emitting diodes (VLEDs) are fabricated by S.‐J. Park and co‐workers based on combining a self‐assembled dip‐coating process and nanopatterning transfer method using thermal release tape. These novel surfaces reduce the total internal reflection and grant additional antifouling abilities to VLEDs. On page 161, this provides a guideline...
Monolayer MoS2 is synthesized on hexagonal boron nitride (h‐BN) flakes with a simple, high‐yield method. Monolayer MoS2 on h‐BN exhibits improved optical quality. Combining the theoretical and experimental analysis, it is concluded that the enhanced photoluminescence and Raman intensities of monolayer MoS2 probably originate from the relatively weak doping effect from the h‐BN substrate rather than...
A CdS/reduced graphene oxide (RGO)/ZnO nanowire array (NWAs) heterostructure is designed, which exhibits enhanced photoelectrochemical (PEC) activity compared to pure ZnO, RGO/ZnO, and CdS/ZnO. The enhancement can be attributed to the synergistic effect of the high electron mobility of ordered 1D ZnO NWAs, extended visible‐light absorption of CdS nanocrystals, and the formed type II band alignment...
Rectangular DNA origami functionalized with thiols in each of the four corners immobilizes by self‐assembly between lithographically patterned gold nanodots on a silicon oxide surface.
Ever since the discovery of graphene, increasing efforts have been devoted to the use of this stellar material as well as the development of other graphene‐like materials such as thin‐layer transition metal dichalcogenides and oxides (TMD/Os) for a variety of applications. Because of their large surface area and unique optical properties, these two‐dimensional materials with a size ranging from the...
A custom single‐wall carbon nanotube (SWCNT)‐modulated separator is employed to directly suppress the polysulfide migration and indirectly protect the lithium‐metal anode from severe polysulfide contamination. The conductive sp2‐carbon scaffold continuously reactivates and reutilizes the trapped active material, so the SWCNT‐modulated separator provides a facile way to facilitate the implementation...
A triboelectric nanogenerator (TENG) has been thought to be a promising method to harvest energy from environment. To date, the utilization of surface structure and material modification has been considered the most effective way to increase its performance. In this work, a wrinkle structure based high‐performance TENG is presented. Using the fluorocarbon plasma treatment method, material modification...
An integrated method for blood plasma separation is presented by combining a pneumatic device, which is referred to as a “smart pipette,” and a hydrophoretic microchannel as a microfluidic pipette tip for whole‐blood sample preparation. This method enables hemolysis‐free, high‐purity plasma separation through smart pipetting of whole blood, potentially providing the means for rapid, inexpensive blood...
A novel design for isothermal amplification using primers labeled with both gold nanoparticles and magnetic microbeads is shown by A. Merkoçi and co‐workers. On page 205, the amplified product carries both labels, allowing rapid purification and quantification. The magnetic properties of the first primer facilitate the purification/preconcentration of the amplified DNA through magnetic separation...
Macroscopically chiral nanospheres and nanotubes composed of helical copolymers are described on page 238 by F. Freire, R. Riguera, and co‐workers. The presence of a donor co‐solvent either activates or deactivates cation–π supramolecular interactions on the chiral monomers of the copolymer, generating either P or M helical senses in the nanostructure through the ‘Sergeants and Soldiers’ effect.
Bioinspired hierarchical structures on the surface of vertical light‐emitting diodes (VLEDs) are demonstrated by combining a self‐assembled dip‐coating process and nanopatterning transfer method using thermal release tape. This versatile surface structure can efficiently reduce the total internal reflection and add functions, such as superhydrophobicity and high oleophobicity, to achieve an antifouling...
On page 190, B. Kim and S. Choi describe a method to separate blood plasma from whole blood through the combined use of a smart pipette and a microfluidic pipette tip. These combined devices are similar enough to a conventional pipette and pipette tip for users to be familiar with its use, so that non‐experts can easily carry out the necessary procedures. This platform can therefore substantially...
Intrinsically stretchable multilayer circuit boards are fabricated with a fast and material efficient method based on filtration. Silver nanowire conductor patterns of outstanding performance are defined by filtration through wax printed membranes and the circuit board is assembled by subsequent transfers of the nanowires onto the elastomer substrate. The method is used to fabricate a bright stretchable...
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