CAS:1799-84-4，2-(Perfluorobutyl)ethyl methacrylate

Disclosed are methods for delivering a therapeutic or diagnostic agent to the cytosol of a cell in a subject. The disclosed methods generally include administering to the subject an effective amount of a lipid nanoparticle comprising the therapeutic or diagnostic agent and an effective amount of a membrane-destabilizing polymer. Also disclosed are related compositions and delivery systems.

A polymer film layer, a preparation method therefor, an LED product, a protective LED packaging method, and a protective LED lamp bead. The polymer film layer is formed on the surface of an LED substrate. The polymer film layer is a film layer formed on the surface of the LED substrate by means of a plasma-enhanced chemical vapor deposition method using one or more of a monomer group consisting of an acrylate monomer, a fluorine-containing olefin monomer, an organosilicon monomer, an epoxy monomer and an aromatic ring-containing organic matter monomer as reaction raw materials. The protective LED packaging method comprises the steps of: S110: fixing a light-emitting element to an LED support in a conductive manner; S120: dispensing a glue onto the light-emitting element and the LED support to form a packaging adhesive layer, so as to fabricate an LED semi-finished product; and S130: depositing and forming a polymer film layer on the surface of the LED semi-finished product by means of a plasma-enhanced chemical vapor deposition method to fabricate a protective LED semi-finished product, so as to solve the industry pain point that LED lamp beads are prone to vulcanization, water inflow or oxygen permeation, etc.

The invention discloses a polymer film layer, a preparation method thereof and an LED product. The polymer film layer is used for being formed on the surface of an LED base material, and the polymer film layer is prepared by taking one or more of a monomer group consisting of an acrylate monomer, a fluorine-containing olefin monomer, an organic silicon monomer, an epoxy monomer and an aromatic ring-containing organic matter monomer as reaction raw materials, and a film layer is formed on the surface of the LED substrate through a plasma enhanced chemical vapor deposition method.