Results 151 to 160 of about 121,325 (308)

Correlative X-ray micro-nanotomography with scanning electron microscopy at the Advanced Light Source

Journal of Synchrotron Radiation
Geological samples are inherently multi-scale. Understanding their bulk physical and chemical properties requires characterization down to the nano-scale.
Arun J. Bhattacharjee, Harrison P. Lisabeth, Dilworth Parkinson, Alastair MacDowell   +3 more
doaj   +1 more source

An integrated measurement method for complex micro-scale geometries [PDF]

, 2016
Micro-scale geometries are becoming commonplace in many high-precision manufacturing applications. Micro-drilling processes, for example, are being employed for producing holes in demanding applications involving fluid transfer, atomisers and micro ...
Butler-Smith, Paul, Helmli, Franz, Leach, Richard K., Rabani, Amir, Senin, Nicola   +4 more
core  

Infrared Nanocrystals for Space Application: Hardness to Irradiations

Advanced Functional Materials, EarlyView.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret, Dario Mastrippolito, Bingbing Xia, Adrien Khalili, Maxime Lebreton, Giorgia Strobbia, Albin Colle, Marco Paye, Mariarosa Cavallo, Erwan Bossavit, Claire Abadie, Yoann Prado, Debora Pierucci, Victor Parahyba, Francois Coursaget, David Darson, Emrick Briand, Ian Vickridge, Stephane Demiguel, Sebastien Massenot, Jean‐Marc Belloir, Vincent Goiffon, Emmanuel Lhuillier   +22 more
wiley   +1 more source

A Programmable Semiconductor Containing Active Molecular Photoswitches Located in the Crystal's Volume Phase

Advanced Functional Materials, EarlyView.
A novel approach for the design of functional semiconductors is presented, which utilizes the excellent optoelectronic properties of layered hybrid perovskites and the possibility to introduce a molecular photoswitch as the organic spacer. This concept is successfully demonstrated on a coumarin‐based system with the possibility to change the bandgap ...
Oliver Treske, Yaşar Krysiak, Hans Tornatzky, Markus R. Wagner, Sebastian Polarz   +4 more
wiley   +1 more source

Structural Porosity and Low Mineral Density in Enamel Rods Drive Molar Incisor Hypomineralisation

Advanced Functional Materials, EarlyView.
This study uses advanced imaging modalities on multiple length scales to show that molar‐incisor hypomineralization does not present as a locally homogeneous pathology. Instead, microstructural defects, characterized through non‐mineralized, protein‐rich sheaths and an altered mineral structure in between prism rods, resulting in local differences in ...
Katharina Jähn‐Rickert, Johannes Krug, Gudrun Lotze, Imke A.K. Fiedler, Diana Freund, Ezgi Deniz Türkoğlu, Christine Plumeyer, Felix N. von Brackel, Anton Davydok, Manfred Burghammer, Thomas Beikler, Thomas F. Keller, Katrin Bekes, Elizabeth A. Zimmermann, Björn Busse   +14 more
wiley   +1 more source

Transparent UV‐Curable Self‐Sanitizing Coatings Applicable to Diverse Surfaces and High‐Touch Screens to Mitigate Deadly Pathogen Transmission

Advanced Functional Materials, EarlyView.
Development of a transparent, self‐sanitizing antimicrobial coating technology applicable to a wide range of materials and surfaces‐including touchscreens, transparent substrates, and metal, plastic, and glass‐regardless of pathogen type. The spray‐coated, UV‐cross‐linked imidazole‐based quaternary ammonium chloride materials provide broad‐spectrum ...
Surjith Kumaran, Sumin Han, Euna Oh, Chunghee Jo, Hyerin Shin, Dae‐Hong Ko, Hyo‐Jick Choi   +6 more
wiley   +1 more source

Does Micro-CT scanning damage DNA in museum specimens? [PDF]

, 2016
X-ray micro-computed tomography and DNA sequencing are useful and increasingly common tools in taxonomy and collections research. Whilst the benefits of each method are continually evaluated and debated individually, how the methods impact each other ...
Hall, A, Sherlock, E, Sykes, D
core  

Three‐Dimensional Hierarchical Nanowire‐Networks with Deep‐Focus Tolerance and Adhesion Robustness for Harsh‐Environment SERS Sensing

Advanced Functional Materials, EarlyView.
A 3D nanowire‐network SERS substrate with robust adhesion is developed, featuring pronounced z‐direction optical activity, ultralow detection limit (1.5 × 10−13 M), and excellent signal uniformity (RSD < 10%). Enabled by enhanced light scattering, increased optical density of states, and structural reinforcement, the substrate demonstrates stable, high‐
Jinglai Duan, Wentao Wang, Xiu Liang, Yongliang Zhang, Jie Liu, Yu Bai, Dangyuan Lei   +6 more
wiley   +1 more source

X-ray micro-tomography to quantify frozen ice cream structure

, 2015
X-ray micro-tomography (X-ray &#956; CT) provided high resolution 3D images of frozen ice cream samples for use in studying the structure and particle size distribution of air bubbles, fat and ice. Ice cream samples were prepared in a laboratory continuous freezer that allowed a feasibility study of microstructure of frozen samples, which were ...
Alvarez, G., Cantre, D., Verboven, P., Ndoye, F.T., Warren, M., Hartel, W.R., Nicolai, B.   +6 more
openaire   +1 more source

Scalable Thermal Engineering via Femtosecond Laser‐Direct‐Written Phononic Nanostructures

Advanced Functional Materials, EarlyView.
This study demonstrates that femtosecond laser‐induced periodic surface structures (fs‐LIPSS) can function as phononic metasurfaces, reducing thermal conductivity below the plain thin‐film limit. Phonon Monte Carlo analysis reveals that the periodic structures restrict phonon mean free paths.
Hiroki Hamma, Roman Anufriev, Kazuyoshi Fushinobu, Masahiro Nomura, Byunggi Kim   +4 more
wiley   +1 more source