Importance

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Abstract

Provided herein are methods for using lipid particles. In one embodiment, lipid particles are used for determining whether a composition includes a charged contaminant. The method includes combining a test composition that includes an analyte with lipid particles to form a mixture, and determining whether there is any change in zeta potential of the mixture and/or average aggregate diameter of liposome aggregates in the mixture. In one embodiment, lipid particles are used for enriching an analyte. The method includes combining a test composition that includes an analyte with lipid particles and multivalent cations to form a mixture, incubating the mixture under conditions suitable for forming a complex that includes the analyte bound to the lipid particle, and separating the complex from the contaminant present in the mixture.

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First Claim