Abstract:
A method is provided to prepare one or more microfluidic channels on a receptive material by applying an image-forming material to a heat sensitive thermoplastic receptive material in a designed pattern and heating the material under conditions that reduce the size of the thermoplastic receptive material by at least about 60%. In an alternative aspect, the microfluidic channels on receptive material are prepared by etching a designed pattern into a heat sensitive thermoplastic material support and then heating the material under conditions that reduce the size of the thermoplastic receptive material by at least about 60%.
Abstract:
A method is provided to prepare one or more microfluidic channels on a receptive material by applying an image-forming material to a heat sensitive thermoplastic receptive material in a designed pattern and heating the material under conditions that reduce the size of the thermoplastic receptive material by at least about 60%. In an alternative aspect, the microfluidic channels on receptive material are prepared by etching a designed pattern into a heat sensitive thermoplastic material support and then heating the material under conditions that reduce the size of the thermoplastic receptive material by at least about 60%.
Abstract:
Three-dimensional structures of stably associated mesogenic ligand-functionalized nanoparticles are provided. Compositions that include these structures, as well as methods of making the structures are also provided. The structures, compositions and methods find use in a variety of applications, such as light emitting devices (e.g., video displays, lights, etc.), inks, photonics and encapsulation technologies.
Abstract:
A method is provided to prepare one or more microfluidic channels on a receptive material by applying an image-forming material to a heat sensitive thermoplastic receptive material in a designed pattern and heating the material under conditions that reduce the size of the thermoplastic receptive material by at least about 60%. In an alternative aspect, the microfluidic channels on receptive material are prepared by etching a designed pattern into a heat sensitive thermoplastic material support and then heating the material under conditions that reduce the size of the thermoplastic receptive material by at least about 60%.
Abstract:
Quantum dot solar concentrators, enhanced solar cells incorporating the solar concentrators, and methods for making and using the solar concentrators and enhanced solar cells are provided. The solar concentrators include a base layer, an overlayer disposed over the base layer, and a plurality of quantum dots disposed between the base layer and the overlayer. At least a portion of the overlayer may be melted to the base layer to provide a seal around at least a portion of the quantum dots. In some embodiments, the base layer, the overlayer, or both comprise polystyrene. In some embodiments, the quantum dots comprise lead sulfide.
Abstract:
Provided are sensors for detecting chemical and biological agents. The sensors include a heat-shrunk thermoplastic substrate and a film of metal disposed over the surface of the substrate, wherein the film of metal comprises a microstructure characterized by wrinkle-like features. Also provided are methods for making the sensors and methods for detecting chemical and biological agents with the sensors using backscattering spectrometry.
Abstract:
Light emitting devices are provided. The light emitting devices include a substrate, a first array of light emitting lines disposed over the substrate, and a second array of light emitting lines disposed over the first array, wherein one or more light emitting lines of the first array cross one or more light emitting lines of the second array to provide a pixel having an area of no more than 100 µm2. The light emitting lines may include quantum dots and the substrate may be formed of a thermoplastic material, such as polystyrene. Also provided are methods of making the light emitting devices using a stamp comprising a heat-shrunk thermoplastic substrate and a film of metal disposed over the surface of the heat-shrunk thermoplastic substrate, wherein the film of metal comprises a microstructure characterized by wrinkle-like features.