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Title: Nanoliter-sized overheated reactor

We report on a microfluidic system formed by 200 nl water droplets, encapsulated by a 600 nl mineral oil placed on a hydrophobically coated glass microscope cover slip. The micromachined heater underneath the glass was able to heat up the sample at a heating rate of 650 °C/s, heating the water sample up to 200 °C in less than 2 s. The sample/glass and the sample/oil interface did not have nucleation centers, showing that the sample reached a superheated stage without the necessity of being pressurized to suppress boiling. This method can be utilized for various applications currently being conducted in autoclaves.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [2] ;  [5] ;  [6]
  1. CEITEC, Brno University of Technology, Antonínská 1, 602 00 Brno (Czech Republic)
  2. (Singapore)
  3. (Germany)
  4. Institute of Bioengineering and Nanotechnology, The Nanos, 31 Biopolis Way, Singapore 138669 (Singapore)
  5. IT4Innovations National Supercomputing Center, Studentská 6231/1B, 708 33 Ostrava, Poruba (Czech Republic)
  6. KIST-Europe, Campus E7.1, Saarbruecken D-66123 (Germany)
Publication Date:
OSTI Identifier:
22399141
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 2; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BOILING; DROPLETS; GLASS; HEAT; HEATING RATE; INTERFACES; MICROSCOPES; NUCLEATION; OILS; PETROLEUM; SLIP; WATER