Aqueous two-phase system nanofilter and separation method using same
AssigneesPostech Academy-Industry Foundation, Exosomeplus Inc.
InventorsJae Sung PARK, Hyun Woo SHIN, Hwa Pyeong JEONG, Si Woo CHO
Life of this patent
Estimating the term…
Abstract
Proposed are an aqueous two-phase system nanofilter capable of effectively separating particles having different sizes within a short time, and a separation method using same. The aqueous two-phase system nanofilter can separate mixed nanoparticles having a size difference of approximately 10 nm, through the designing of a composition constituting each composition. The separated nanoparticles can be applied across industries such as electronics, photoelectronics and magnetic fields, biomedical, medical and cosmetic fields, energy, catalysts, and structures.
Claims17
An aqueous two-phase system nanofilter, comprising:
- a first aqueous phase forming a dispersion phase, and a second aqueous phase phase-separated from the dispersion phase and forming a continuous phase, so as to separate mixed nanoparticles having different sizes,
- wherein tension(γ) of an interface at which the first aqueous phase and the second aqueous phase are phase-separated satisfies the following Equation 1:
- 2×10−7 J/m2≤γ≤50×10−5 J/m2 [Equation 1]
A method of separating nanoparticles, comprising:
- (S1) mixing a sample containing mixed nanoparticles with a first aqueous phase;
- (S2) preparing a second aqueous phase and injecting it into a channel;
- and
- (S3) injecting a dispersion containing the sample into the channel in which the second aqueous phase is carried,
- wherein the first aqueous phase and the second aqueous phase are phase-separated, and tension(γ) of an interface at which phase-separation is performed satisfies the following Equation 1:
- 2×10−7 J/m2≤γ≤50×10−5 J/m2 [Equation 1]
Dependencies are inferred from the claim text.