نتایج جستجو برای: nano droplets

تعداد نتایج: 66651  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2008
abdolreza samimi mojtaba ghadiri

to resolve handling problem of nanoparticles, due to their small size, a new methodology of electro-spraying and freeze-drying was developed for colloidal nanoparticles of silica and titania to transform them to solid macro-scale nanoparticle assemblies.  the assemblies were then redispersed in an aqueous system to investigate the effect of formulation of original solutions and the process para...

2016
Katrianne Lehtipalo Linda Rondo Jenni Kontkanen Siegfried Schobesberger Tuija Jokinen Nina Sarnela Andreas Kürten Sebastian Ehrhart Alessandro Franchin Tuomo Nieminen Francesco Riccobono Mikko Sipilä Taina Yli-Juuti Jonathan Duplissy Alexey Adamov Lars Ahlm João Almeida Antonio Amorim Federico Bianchi Martin Breitenlechner Josef Dommen Andrew J Downard Eimear M Dunne Richard C Flagan Roberto Guida Jani Hakala Armin Hansel Werner Jud Juha Kangasluoma Veli-Matti Kerminen Helmi Keskinen Jaeseok Kim Jasper Kirkby Agnieszka Kupc Oona Kupiainen-Määttä Ari Laaksonen Michael J Lawler Markus Leiminger Serge Mathot Tinja Olenius Ismael K Ortega Antti Onnela Tuukka Petäjä Arnaud Praplan Matti P Rissanen Taina Ruuskanen Filipe D Santos Simon Schallhart Ralf Schnitzhofer Mario Simon James N Smith Jasmin Tröstl Georgios Tsagkogeorgas António Tomé Petri Vaattovaara Hanna Vehkamäki Aron E Vrtala Paul E Wagner Christina Williamson Daniela Wimmer Paul M Winkler Annele Virtanen Neil M Donahue Kenneth S Carslaw Urs Baltensperger Ilona Riipinen Joachim Curtius Douglas R Worsnop Markku Kulmala

The growth of freshly formed aerosol particles can be the bottleneck in their survival to cloud condensation nuclei. It is therefore crucial to understand how particles grow in the atmosphere. Insufficient experimental data has impeded a profound understanding of nano-particle growth under atmospheric conditions. Here we study nano-particle growth in the CLOUD (Cosmics Leaving OUtdoors Droplets...

Journal: :Chemosensors 2023

We report enhanced electrochemical detection of single water-in-oil emulsion droplets using the nano-impact method. To detect droplets, water molecules in were directly oxidized (i.e., splitting) without additional electroactive species when collided with ultramicroelectrode. The droplet cannot be electrolyzed an organic solvent because emulsifier does not require a hydrophobic electrolyte. enh...

2015
Prof. Johan Åkerman Gisela Schütz

Dynamical solitons in individual and mutually synchronized spin-torque and spin-hall effect driven nano-oscillators Prof. Johan Åkerman University of Gothenburg, Göteborg, Sweden Nano-contact spin-torque nano-oscillators (STNOs) and spin Hall effect nano-oscillators (SHNOs) provide excellent playgrounds for the study of highly non-linear and nanoscopic spin wave modes and phenomena. While origi...

Journal: :Science China Physics, Mechanics & Astronomy 2021

Abstract Magnetic droplets, a class of highly nonlinear magnetodynamic solitons, can be nucleated and stabilized in nanocontact spin-torque nano-oscillators. Here we experimentally demonstrate magnetic droplets tunnel junctions (MTJs). The droplet nucleation is accompanied by power enhancement compared with its ferromagnetic resonance modes. stabilization are ascribed to the double-CoFeB free-l...

Journal: :iranian journal of veterinary research 2008
p. tajik m. r. hassan-nejad lamsoo

testicles were isolated from dromedary camels in a local slaughterhouse at breeding and non-breeding seasons. sperms were recovered from different parts of the epididymis (caput, corpus and cauda) and stained separately on slide glasses by eosin nigrosin staining method and dried by a hair dryer and carried to the laboratory. in the lab, slides were observed for evaluation of the proportion of ...

Journal: :Nanotechnology 2010
Benedikt Bauer Andreas Rudolph Marcello Soda Anna Fontcuberta i Morral Josef Zweck Dieter Schuh Elisabeth Reiger

GaAs nanowires are grown by molecular beam epitaxy using a self-catalyzed, Ga-assisted growth technique. Position control is achieved by nano-patterning a SiO(2) layer with arrays of holes with a hole diameter of 85 nm and a hole pitch varying between 200 nm and 2 µm. Gallium droplets form preferentially at the etched holes acting as catalyst for the nanowire growth. The nanowires have hexagona...

Journal: :Analytical chemistry 2009
Keren Kantarovich Inbal Tsarfati Levi A Gheber Karsten Haupt Ilana Bar

Molecularly imprinted polymer (MIP) droplets were printed using a pipet or a nano fountain pen on surface-enhanced Raman scattering (SERS)-active surfaces, to directly monitor the uptake and release of a template molecule, the beta-blocking drug propranolol, by SERS. The monitored SERS bands can be related to the template, allowing for its detection but also identification in the MIP. This is a...

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