Emulsion chemistry for encapsulated droplets
First Claim
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1. A method of amplifying target nucleic acids in skin-encapsulated capsules comprising:
- a) providing an aqueous phase comprising at least about 0.01% by weight of a skin-forming protein, an amplification reagent mix and target nucleic acids;
b) forming an emulsion comprising droplets of said aqueous phase disposed in a continuous phase comprising an oil and a negatively charged ionic surfactant;
c) heating said emulsion to at least about 50°
C. to create an interfacial skin between each droplet and the continuous phase, such that said droplets form skin-encapsulated capsules;
d) amplifying said target nucleic acids in said capsules; and
e) detecting amplification of said target nucleic acids.
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Abstract
System, including methods, apparatus, compositions, and kits, for making and using a stabilized emulsion. A method of generating a stabilized emulsion is provided. In the method, an aqueous phase may be provided. The aqueous phase may include an effective concentration of one or more skin-forming proteins. An emulsion may be formed. The emulsion may include droplets of a dispersed phase disposed in a continuous phase, with the aqueous phase being the continuous phase or the dispersed phase. The emulsion may be heated to create an interfacial skin between each droplet and the continuous phase, to transform the droplets into capsules.
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Citations
19 Claims
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1. A method of amplifying target nucleic acids in skin-encapsulated capsules comprising:
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a) providing an aqueous phase comprising at least about 0.01% by weight of a skin-forming protein, an amplification reagent mix and target nucleic acids; b) forming an emulsion comprising droplets of said aqueous phase disposed in a continuous phase comprising an oil and a negatively charged ionic surfactant; c) heating said emulsion to at least about 50°
C. to create an interfacial skin between each droplet and the continuous phase, such that said droplets form skin-encapsulated capsules;d) amplifying said target nucleic acids in said capsules; and e) detecting amplification of said target nucleic acids. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of generating skin-encapsulated capsules comprising:
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a) providing an aqueous phase comprising at least about 0.01% by weight of a skin-forming protein; b) forming an emulsion comprising droplets of said aqueous phase disposed in a continuous phase comprising an oil and an ionic surfactant; and c) heating said emulsion to at least about 50°
C. to create an interfacial skin between each droplet and the continuous phase, such that said droplets form skin-encapsulated capsules. - View Dependent Claims (16, 17, 18, 19)
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Specification