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Updated: Jun 27, 2026
12:37
Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers
Published on: September 4, 2015
Phase-separable aqueous amide solutions as a thermal history indicator.
Makoto Kitsunai1, Kentaro Miyajima, Yuzuru Mikami
1Laboratory of Bio-Organic Chemistry, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan.
Bioscience, Biotechnology, and Biochemistry
|December 9, 2008
Summary
New amide compounds create adjustable aqueous solutions for thermal history indicators. These solutions track temperature changes during low-temperature transport, ensuring product quality and safety.
Area of Science:
- Materials Science
- Physical Chemistry
Background:
- Maintaining specific temperature ranges is crucial for preserving the quality and safety of perishable goods during transport.
- Current thermal history indicators may lack the flexibility needed for diverse low-temperature applications.
Purpose of the Study:
- To synthesize novel amide compounds for aqueous solutions.
- To develop simple, adjustable thermal history indicators for low-temperature monitoring.
Main Methods:
- Synthesis of new amide compounds.
- Preparation of aqueous solutions with varying amide-water ratios and sodium chloride concentrations.
- Characterization of phase transition temperatures.
Main Results:
- Successfully synthesized several new amide compounds.
- Demonstrated that phase transition temperatures are tunable by adjusting solution composition (amide-water ratio, NaCl concentration) and amide type.
- Developed a system for creating adjustable thermal history indicators.
Conclusions:
- The synthesized amide-based aqueous solutions show promise as versatile thermal history indicators.
- These indicators can be customized for specific low-temperature monitoring needs in food and product transport.
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