An ultraviolet light sterilization device for treatment of plant materials, having a rotational treatment chamber having an axis of rotation and at least one mechanical agitation element, an ultraviolet light device that is positioned inside the rotational treatment chamber and is further positioned generally parallel to and congruent with the axis of rotation and where the ultraviolet light device and the rotational treatment chamber are connected to one another via a rotational bearing such that the rotational treatment chamber may be rotated about the axis of rotation while the ultraviolet light device does not rotate, and where the ultraviolet light device is electrically coupled to a power source via an electrical cable that passes through an aperture in the rotational bearing.

An apparatus for the treatment of a liquid that includes a chamber having at least one inner surface, the chamber adapted for passage of a fluid therethrough. The chamber is at least 80 percent enclosed. The apparatus also includes an optional ultraviolet-transmissive tube disposed within the chamber and also adapted for the passage of the liquid therethrough. The apparatus further includes an ultraviolet lamp disposed within the chamber and, optionally, within the ultraviolet-transmissive tube. A reflective material is interposed between the chamber and the transmissive tube. The reflective material is adapted so as to reflect at least a portion of light emitted by the ultraviolet lamp, wherein the reflective material is at least 80 percent reflective.

An apparatus for the treatment of a liquid that includes a chamber having at least one inner surface, the chamber adapted for passage of a fluid therethrough. The chamber is at least 80 percent enclosed. The apparatus also includes an optional ultraviolet-transmissive tube disposed within the chamber and also adapted for the passage of the liquid therethrough. The apparatus further includes an ultraviolet lamp disposed within the chamber and, optionally, within the ultraviolet-transmissive tube. A reflective material is interposed between the chamber and the transmissive tube. The reflective material is adapted so as to reflect at least a portion of light emitted by the ultraviolet lamp, wherein the reflective material is at least 80 percent reflective.

An ultraviolet light sterilization device for treatment of plant materials, having a rotational treatment chamber having an axis of rotation and at least one mechanical agitation element, an ultraviolet light device that is positioned inside the rotational treatment chamber and is further positioned generally parallel to and congruent with the axis of rotation and where the ultraviolet light device and the rotational treatment chamber are connected to one another via a rotational bearing such that the rotational treatment chamber may be rotated about the axis of rotation while the ultraviolet light device does not rotate, and where the ultraviolet light device is electrically coupled to a power source via an electrical cable that passes through an aperture in the rotational bearing.

A system includes a first chamber, a second chamber, an ultraviolet light source and a microwave source. The first chamber includes an inlet. The second chamber is adjacent the first chamber and includes an outlet and a waveguide. The ultraviolet light source resides within the waveguide of the second chamber. Related apparatus, systems, techniques and articles are also described.

A system includes a first chamber, a second chamber, an ultraviolet light source and a microwave source. The first chamber includes an inlet. The second chamber is adjacent the first chamber and includes an outlet and a waveguide. The ultraviolet light source resides within the waveguide of the second chamber. Related apparatus, systems, techniques and articles are also described.

Compositions, devices, and methods are disclosed for the covalent modification of polymer surfaces with graft copolymers having a blend of side chains. The halogenated acrylic and polyalkylene glycol acrylic side chains of the graft copolymer provide the polymer surface with high hydrophobicity, as well as increased resistance to biofouling with proteinaceous material. The polymer surfaces can be particularly useful in microfluidic devices and methods that involve the contacting of the covalently modified polymer surfaces with emulsions of aqueous droplets containing biological macromolecules within an oil carrier phase.

A system includes a first chamber, a second chamber, an ultraviolet light source and a microwave source. The first chamber includes an inlet. The second chamber is adjacent the first chamber and includes an outlet and a waveguide. The ultraviolet light source resides within the waveguide of the second chamber. Related apparatus, systems, techniques and articles are also described.

A system includes a first chamber, a second chamber, an ultraviolet light source and a microwave source. The first chamber includes an inlet. The second chamber is adjacent the first chamber and includes an outlet and a waveguide. The ultraviolet light source resides within the waveguide of the second chamber. Related apparatus, systems, techniques and articles are also described.

A system includes a first chamber, a second chamber, an ultraviolet light source and a microwave source. The first chamber includes an inlet. The second chamber is adjacent the first chamber and includes an outlet and a waveguide. The ultraviolet light source resides within the waveguide of the second chamber. Related apparatus, systems, techniques and articles are also described.