Abstract: Provided herein are encapsulated liposomes comprising a lipid bilayer, a first polyethylene glycol (PEG) corona, a targeting molecule and a second PEG corona. The second, encapsulating PEG corona can be reversibly linked to the first PEG corona. Also provided are pharmaceutical compositions comprising the encapsulated liposomes and methods of treating a subject with a disease characterized by production of reactive oxygen species (ROS) with the compositions. Also provided are methods of making the encapsulated liposomes disclosed herein.

Abstract: A composition and methods of use and preparation are provided. The composition may comprise a magnetic nanoparticle comprising: a passivation layer; and at least one unique entity that is attached to the magnetic nanoparticle. For example, the composition may include a magnetic nanoparticle and an antibody attached to the magnetic nanoparticle. Such magnetic nanoparticle architecture can provide treatment by, and screening of, nanoparticles functionalized with various functional species.

Abstract: A composition and methods of use and preparation are provided. The composition may comprise a magnetic nanoparticle comprising: a passivation layer; and at least one unique entity that is attached to the magnetic nanoparticle. For example, the composition may include a magnetic nanoparticle and an antibody attached to the magnetic nanoparticle. Such magnetic nanoparticle architecture can provide treatment by, and screening of, nanoparticles functionalized with various functional species.

Abstract: Provided herein are encapsulated liposomes comprising a lipid bilayer, a first polyethylene glycol (PEG) corona, a targeting molecule and a second PEG corona. The second, encapsulating PEG corona can be reversibly linked to the first PEG corona. Also provided are pharmaceutical compositions comprising the encapsulated liposomes and methods of treating a subject with a disease characterized by production of reactive oxygen species (ROS) with the compositions. Also provided are methods of making the encapsulated liposomes disclosed herein.

Abstract: Disclosed herein is a particle comprising a first effector element covalently bonded to a nanoparticle via a first orthogonal moiety and a second effector element covalently bonded to the nanoparticle via a second orthogonal moiety, wherein the first orthogonal moiety and the second orthogonal moiety have different chemical structures. The first effector element and the second effector element may be, for example, a targeting agent, a therapeutic agent, and a diagnostic agent. In certain embodiments, the nanoparticle is a liposome. Methods for preparing functionalized nanoparticles, including functionalized liposomes, are also described.