B01J13/14

Microfluidic droplet generators

Disclosed herein is a novel method of producing monodisperse aqueous droplets, as well as a novel microfluidic droplet generator. In some examples, the method comprises flowing an aqueous solution through a microchannel and into a sample reservoir of the microfluidic droplet generator, wherein monodisperse droplets of the aqueous solution form by step-emulsification at a step change in height at an intersection of a reservoir end of the microchannel and a sidewall of the sample reservoir. In some examples, the aqueous solution is a hydrogel precursor solution and monodisperse droplets of the hydrogel precursor solution form by step-emulsification at the step change in height at the intersection of the reservoir end of the microchannel and the sidewall of the sample reservoir. In some examples, the monodisperse droplets of the hydrogel precursor solution are incubated under conditions suitable for gelation to form hydrogel beads.

Microfluidic droplet generators

Disclosed herein is a novel method of producing monodisperse aqueous droplets, as well as a novel microfluidic droplet generator. In some examples, the method comprises flowing an aqueous solution through a microchannel and into a sample reservoir of the microfluidic droplet generator, wherein monodisperse droplets of the aqueous solution form by step-emulsification at a step change in height at an intersection of a reservoir end of the microchannel and a sidewall of the sample reservoir. In some examples, the aqueous solution is a hydrogel precursor solution and monodisperse droplets of the hydrogel precursor solution form by step-emulsification at the step change in height at the intersection of the reservoir end of the microchannel and the sidewall of the sample reservoir. In some examples, the monodisperse droplets of the hydrogel precursor solution are incubated under conditions suitable for gelation to form hydrogel beads.

GERMANIUM FINE PARTICLE INCLUDED FUNCTIONAL MICRO-CAPSULE AND FABRIC COMPRISING THE FUNCTIONAL MICRO-CAPSULE
20230074203 · 2023-03-09 ·

Proposed are a functional microcapsule processed to contain therein a germanium component having various physiologically active characteristics and a functional textile fabric to which the functional microcapsules are applied. The functional microcapsule includes a lipophilic oil, germanium ore powder or germanium oxide powder dispersed in the oil, and a shell made of a polymer material and containing therein the oil in which the germanium ore powder or germanium oxide powder is dispersed. These proposals may solve the problem of poor resistance to washing and poor washing durability, which have been pointed out as problems with conventional use of germanium, and may facilitate attachment and fixing of germanium to various media.

Controlled Release Polymer Encapsulated Fragrances
20230064054 · 2023-03-02 ·

The present disclosure relates to fragrance materials encapsulated within polymeric materials in the form of microcapsules of polymer encapsulated fragrance. The microcapsules are mixed with a water-based binding agent so that a coating forms on the microcapsule in situ, after which the coated microcapsules may be applied to hard surfaces of a product, from which controlled release of the fragrance is provided over time as the product is subjected to normal handling by a user.

Method for obtaining encapsulated nanoparticles

A method for obtaining at least one particle, including: (a) preparing solution A including at least one precursor of at least one of Si, B, P, Ge, As, Al, Fe, Ti, Zr, Ni, Zn, Ca, Na, Ba, K, Mg, Pb, Ag, V, Te, Mn, Ir, Sc, Nb, Sn, Ce, Be, Ta, S, Se, N, F, and Cl; (b) preparing aqueous solution B; (c) forming droplets of solution A; (d) forming droplets of solution B; (e) mixing droplets; (f) dispersing mixed droplets in a gas flow; (g) heating dispersed droplets to obtain the at least one particle; (h) cooling the at least one particle; and (i) separating and collecting the at least one particle. The aqueous solution is acidic, neutral, or basic. In step (a) and/or step (b) at least one colloidal suspension of a plurality of nanoparticles is mixed with the solution. Also, a device for implementing the method.

Method for obtaining encapsulated nanoparticles

A method for obtaining at least one particle, including: (a) preparing solution A including at least one precursor of at least one of Si, B, P, Ge, As, Al, Fe, Ti, Zr, Ni, Zn, Ca, Na, Ba, K, Mg, Pb, Ag, V, Te, Mn, Ir, Sc, Nb, Sn, Ce, Be, Ta, S, Se, N, F, and Cl; (b) preparing aqueous solution B; (c) forming droplets of solution A; (d) forming droplets of solution B; (e) mixing droplets; (f) dispersing mixed droplets in a gas flow; (g) heating dispersed droplets to obtain the at least one particle; (h) cooling the at least one particle; and (i) separating and collecting the at least one particle. The aqueous solution is acidic, neutral, or basic. In step (a) and/or step (b) at least one colloidal suspension of a plurality of nanoparticles is mixed with the solution. Also, a device for implementing the method.

Amine Functionalized Siloxane Resin Particles
20230159709 · 2023-05-25 · ·

An amino functionalized siloxane resin particle obtainable by polycondensation of a cationic alkoxysilane surfactant according to general formula I (I) and an amino functionalized alkoxysilane according to general formula (II). The amino functionalized siloxane resin particle can be incorporated in jettable liquids for inkjet printing.

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MICROCAPSULE AND PRODUCTION METHOD THEREOF
20220323923 · 2022-10-13 ·

A microcapsule which is used in tissue regeneration, which may be specifically directed to the damaged tissues, and which forms an extracellular matrix-like structure at a certain point and thus allows cell proliferation.

Compositions Containing a Capsule with an Agent
20230113098 · 2023-04-13 · ·

The present specification discloses compositions comprising one or more encapsulates comprising one or more agents and methods and uses for the disclosed agents. A composition disclosed herein can be incorporated into a body wash, an after shower body lotion, a shampoo, a conditioner, a soap, a gel, a hand sanitizer, a cream, a spray, a mouse, a lotion, an ointment, a make-up product, a lip balm, a hair spray product, an arachnid/insect repellent or a medicinal product.

Compositions Containing a Capsule with an Agent
20230113098 · 2023-04-13 · ·

The present specification discloses compositions comprising one or more encapsulates comprising one or more agents and methods and uses for the disclosed agents. A composition disclosed herein can be incorporated into a body wash, an after shower body lotion, a shampoo, a conditioner, a soap, a gel, a hand sanitizer, a cream, a spray, a mouse, a lotion, an ointment, a make-up product, a lip balm, a hair spray product, an arachnid/insect repellent or a medicinal product.