Results 51 to 60 of about 270,107 (308)

Rolled up si-based three dimensional micro-/nanostructures for MEMS/NEMS [PDF]

, 2008
Recently, by combination of the “top down” and “bottom up” approaches, a new strategy to fabricate 3D micro-/nanostructures named self-scrolling technique has been introduced by Prinz et al. in 1999.
Zhang, Li
core   +1 more source

Thermal Sight: A Position‐Sensitive Detector for a Pinpoint Heat Spot

Small Science
Precise positioning is a never‐ending goal in both fundamental science and technology. Recent decades of advancements in high‐precision position detection have predominantly relied on photoelectric effects for light detection in semiconductors. Herein, a
Jun Peng, Pai Zhao, Rakshith Venugopal, Kristian Deneke, Stefanie Haugg, Robert Blick, Robert Zierold   +6 more
doaj   +1 more source

Hollow plasmonic antennas for broadband SERS spectroscopy

Beilstein Journal of Nanotechnology, 2015
The chemical environment of cells is an extremely complex and multifaceted system that includes many types of proteins, lipids, nucleic acids and various other components.
Gabriele C. Messina, Mario Malerba, Pierfrancesco Zilio, Ermanno Miele, Michele Dipalo, Lorenzo Ferrara, Francesco De Angelis   +6 more
doaj   +1 more source

Temperature-Enhanced Exciton Emission from GaAs Cone–Shell Quantum Dots

Nanomaterials, 2023
The temperature-dependent intensities of the exciton (X) and biexciton (XX) peaks from single GaAs cone–shell quantum dots (QDs) are studied with micro photoluminescence (PL) at varied excitation power and QD size.
Christian Heyn, Leonardo Ranasinghe, Kristian Deneke, Ahmed Alshaikh, Robert H. Blick   +4 more
doaj   +1 more source

A Practical Noise2Noise Denoising Pipeline for High‐Throughput Raman Spectroscopy

Advanced Engineering Materials, EarlyView.
A lightweight and reproducible denoising pipeline for high‐throughput Raman spectroscopy is introduced, based on a 1D convolutional autoencoder trained with a Noise2Noise strategy. Using only repeated short‐exposure acquisitions, the method suppresses stochastic noise without reference spectra, enabling reliable spectral reconstruction while preserving
David Martin‐Calle, Cesar Alvarez‐Llamas, Vincent Motto‐Ros, Christophe Dujardin, Jérémie Margueritat, David Rodney   +5 more
wiley   +1 more source

Thermal Transport in 3D Nanostructures

, 2020
This work summarizes the recent progress on the thermal transport properties of 3D nanostructures, with an emphasis on experimental results. Depending on the applications, different 3D nanostructures can be prepared or designed to either achieve a low ...
Chen, Yongnan, Zhan, Haifei, John M. Bell, Nie, Yihan, Yongnan Chen, Gu, Yuantong, Yuantong Gu, Haifei Zhan, Yihan Nie, Bell, John M.   +9 more
core   +1 more source

Tuning the Liquid–Vapour Interface of VLS Epitaxy for Creating Novel Semiconductor Nanostructures [PDF]

, 2023
Controlling the morphology and composition of semiconductor nano- and micro-structures is crucial for fundamental studies and applications. Here, Si-Ge semiconductor nanostructures were fabricated using photolithographically defined micro-crucibles on Si
Vladimir G. Dubrovskii, Haffouz, Sofiane, Zhang, Zixiao, Philip J. Poole, Suwito, Galih, Dubrovskii, Vladimir, Peter Grutter, Nathaniel J. Quitoriano, Wang, Weizhen, Quitoriano, Nathaniel, Galih R. Suwito, Dalacu, Dan, Weizhen Wang, Dan Dalacu, Poole, Philip, Sofiane Haffouz, Zixiao Zhang, Grutter, Peter   +17 more
core   +1 more source

Substrate thermal properties influence ventral brightness evolution in ectotherms

Communications Biology, 2021
Jonathan Goldenberg et al. use photographic data and ancestral state reconstruction of 126 viper species to show that substrate type influences the evolution of ventral brightness for efficient heat transfer. Their results suggest that these patterns may
Jonathan Goldenberg, Liliana D’Alba, Karen Bisschop, Bram Vanthournout, Matthew D. Shawkey   +4 more
doaj   +1 more source

Polysaccharide Nanostructures [PDF]

, 2014
This chapter reviews the microstructural evolution of single polysaccharide gels, mixed protein–polysaccharide systems and fluid gels. It also covers the physicochemical behaviour of the crystalline and glassy solid states of polysaccharide systems. The chapter outlines the structural monomers of the polysaccharide backbone and goes on to describe how ...
openaire   +2 more sources

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

Advanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source