Disclosed are monoclonal antibodies against Chikungunya virus having enhanced effector function and efficacy, methods of producing them, and methods of treatment of Chikungunya viral infection using the antibodies.

The transgenic plants expressing one or more antagonist IL-10R peptides and anti-IL-10 single domain antibodies that stimulate or modulate the immune system and improve gastrointestinal physiology of an animal fed the transgenic plants or tissues thereof and the genes encoding the antagonist IL-10R peptides and anti-IL-10 single domain antibodies are described. The animal feed additives and animal feed incorporating the transgenic plants or tissues thereof are also described. Methods of stimulating or modulating an animal's immune system, improving an animal's gastrointestinal physiology, improving animal performance by using the transgenic plants or tissues thereof, and treating animals infected with a gastrointestinal pathogen are provided.

A method of recovering a product-of-interest from a plant or algal cell and a kit relating to the same are provided. The method of recovering a product-of-interest from a plant or algal cell includes (a) culturing a plant or algal cell that produces a product-of-interest in a culture medium; (b) adding functionalized nanoparticles to the culture medium, whereby the nanoparticles enter the plant or algal cell, bind the product-of-interest, and are extruded into the culture medium; (c) recovering the extruded nanoparticles from the culture medium; and (d) separating the product-of-interest from the extruded nanoparticles. The kit includes a plant or algal cell that produces a product-of-interest when in culture and a functionalized nanoparticle. Also provided is a method of separating plant or algal cells.