A smart pipet tip: Triboelectricity and thermoelectricity assisted in situ evaluation of electrolyte concentration
Journal
NANO ENERGY
Journal Volume
38
Pages
419
Date Issued
2017
Author(s)
Abstract
Pipet tips are commonly utilized laboratory tools to transfer adjustable volume of liquid in various fields of chemistry, biology and physics. Recently, we have reported that the ordinary pipetting procedure always involves spontaneous liquid-solid contact electrification, resulting in generation of net electrical charges on the dispensed solution and the inner surface of the polymeric pipet tip. In this study, a concept of a smart pipet tip is proposed to evaluate the electrolyte concentration of the dispensed solution by use of spontaneously generated electric signals during the ordinary pipetting procedure. The smart pipet tip possessing triboelectricity and thermoelectricity detecting modules is advantageous as it performs in situ evaluation of solution characteristics without any subsidiary solution handling process. The spontaneously generated electric signals are intensively investigated with the theoretical analyses. The proof-of-concept demonstration of the present smart pipet tip is shown for in situ prediction of morphology of nanoparticles during their synthetic reaction, which critically determines their catalytic activity.
Subjects
Smart pipet tip; Contact electrification; Thermoelectric effect; Self-powered sensor; Electrolyte concentration; Temperature; GO EXTRACTION TIPS; ELECTROCHEMICAL SENSORS; CONTACT-ELECTRIFICATION; NANOPARTICLE CATALYSTS; ENERGY; PROTEOMICS; CHEMISTRY; WATER; NANOGENERATORS; MICROFLUIDICS
Publisher
ELSEVIER SCIENCE BV
Type
journal article