#Energy harvesting goes organic, gets more flexible

“#Energy harvesting goes organic, gets more flexible” A group of researchers has explored peptide-based nanotubes and, in the Journal of Applied Physics, reports using a combination of ultraviolet and ozone exposure to generate a wettability difference and an applied field to create horizontally aligned polarization of nanotubes on flexible substrates with interlocking electrodes. The work…

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#New method to design diamond lattices and other crystals from microscopic building blocks

“#New method to design diamond lattices and other crystals from microscopic building blocks” Petr Sulc is a researcher at the Biodesign Center for Molecular Design and Biomimetics and ASU’s School of Molecular Sciences (SMS). Credit: The Biodesign Institute at Arizona State University An impressive array of architectural forms can be produced from the popular interlocking…

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#Get diamonds, take temperature: Quantum thermometer using nanodiamonds senses a ‘fever’ in tiny worms C. elegans

“#Get diamonds, take temperature: Quantum thermometer using nanodiamonds senses a ‘fever’ in tiny worms C. elegans” Temperature of C. elegans measured via tracking of embedded nanodiamonds. Credit: Masazumi Fujiwara, Osaka City University A team from Osaka City University, in collaboration with other international partners, has demonstrated a reliable, precise, microscope-based thermometer using quantum technology that…

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#Understanding electron transport in graphene nanoribbons

“#Understanding electron transport in graphene nanoribbons” This visualisation shows layers of graphene used for membranes. Credit: University of Manchester Graphene is a modern wonder material possessing unique properties of strength, flexibility and conductivity whilst being abundant and remarkably cheap to produce, lending it to a multitude of useful applications—especially true when these 2-D atom-thick sheets…

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#Regulating the absorption spectrum of polydopamine

“#Regulating the absorption spectrum of polydopamine” Synthesis and characterization of TEMPO-doped PDA. (A) Schematic illustration of the TEMPO-doped PDA with narrower bandgap and improved light absorption ability compared to conventional PDA. (B) Polymerization of dopamine and TEMPO, together with their molecular structures and powder photographs. (C) SEM image of PDA-3. (D) EELS mapping analysis of…

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#A high-yield method for assembling targeted nanoparticle clusters

“#A high-yield method for assembling targeted nanoparticle clusters” September 11, 2020 report Experimental and simulation study of the CM formation. Credit: Science (2020). DOI: 10.1126/science.aba8653 A team of researchers from China, the U.S. and Canada has developed a high-yield method for assembling targeted nanoparticle clusters. In their paper published in the journal Science, the group…

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#A gold nanoparticle nearly cloaked by a single molecule

“#A gold nanoparticle nearly cloaked by a single molecule” Shadow stealer. The absorption of light by a gold nanoparticle is reduced—and the shadow weakened—when a dye molecule (red) is placed nearby. With experimental improvements, the nanoparticle could become transparent. Credit: J. Zirkelbach/Max Planck Inst. for the Science of Light, via Physics, DOI: 10.1103/Physics.13.141 A team…

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#Paving the way for tunable graphene plasmonic THz amplifiers

“#Paving the way for tunable graphene plasmonic THz amplifiers” Measured absorption/amplification spectra of the device response to the terahertz pulse wave radiation. The terahertz wave pulse was emitted while increasing the drain voltage of the prototype graphene transistor. Absorption characteristics (frequency spectrum) of the graphene transistor, in relation to the incident pulse wave, were obtained…

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#New electrode configuration improves volumetric performance of supercapacitors

“#New electrode configuration improves volumetric performance of supercapacitors” Assembly of the supercapacitor with an alternately stacked electrode configuration. Credit: PAN Qijuan A new design with an alternately stacked electrode configuration helped to enhance the volumetric performance of supercapacitors and attain high energy density without sacrificing power performance. This research, which introduced the alternately stacked electrode…

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#Painting with light: Novel nanopillars precisely control intensity of transmitted light

“#Painting with light: Novel nanopillars precisely control intensity of transmitted light” Illustration depicts a faithful reproduction of Johannes Vermeer’s “Girl With a Pearl Earring” using millions of nanopillars that control both the color and intensity of incident light. Credit: T. Xu/Nanjing University By shining white light on a glass slide stippled with millions of tiny…

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