Abstract: A dry adhesive microfiber array comprising a plurality of fibers with enlarged tips, where the dry adhesive is capable of adhering to a surface of a silicon wafer and/or carrier. The dry adhesive can be debonded without the use of chemicals or heat and does not leave a residue on the surface of the wafer. In addition, a liquid can be introduced to the interface between the dry adhesive and semiconductor device to adjust the force of adhesion.

Abstract: A reflective material comprising a multilayered array of particles encapsulated by a matrix material, the reflective material defining a primary surface, the reflective material exhibiting: (i) visible retroreflection of incident radiation, wherein a wavelength of visible retroreflected radiation decreases from a first visible wavelength at a first angle to the primary surface to a second, shorter wavelength of visible retroreflected radiation as the viewing angle to the primary surface increases; and (ii) Bragg diffraction of the incident radiation, wherein the wavelength of radiation Bragg diffracted normal to the primary surface is longer than the wavelength of visible radiation, such that no visible radiation is retroreflected or Bragg diffracted in a direction normal to the primary surface.

Abstract: A dispersion of monodisperse similarly charged particles, the monodisperse particles having a maximum particle size dispersity of 10% and each particle having a surface with a minimum surface charge density of 1 ?C/cm2 and comprising pendant steric stabilizing groups.

Abstract: A dispersion of monodisperse similarly charged particles, the monodisperse particles having a maximum particle size dispersity of 10% and each particle having a surface with a minimum surface charge density of 1 ?C/cm2 and comprising pendant steric stabilizing groups.

Abstract: A reflective material comprising a multilayered array of particles encapsulated by a matrix material, the reflective material defining a primary surface, the reflective material exhibiting: (i) visible retroreflection of incident radiation, wherein a wavelength of visible retroreflected radiation decreases from a first visible wavelength at a first angle to the primary surface to a second, shorter wavelength of visible retroreflected radiation as the viewing angle to the primary surface increases; and (ii) Bragg diffraction of the incident radiation, wherein the wavelength of radiation Bragg diffracted normal to the primary surface is longer than the wavelength of visible radiation, such that no visible radiation is retroreflected or Bragg diffracted in a direction normal to the primary surface.

Abstract: One aspect of the present disclosure is directed towards a new film forming paint that Bragg diffracts light in the visible and NIR spectral regions. The paint may be comprised of highly charged polymer spheres that self assemble and maintain their diffraction in the presence of the different ingredients of the paint formulation, so that the self assembled arrays diffract light in both wet and dry states. Another aspect of the present invention is directed to a process for making highly charged polymeric spheres. Another aspect of the present invention is directed to the highly charged polymeric spheres themselves. The high surface charge density of the spheres enables the stability and self assembly of the spheres in the presence of the other paint ingredients. These spheres can find useful practical applications in paints, inks, coatings, cosmetics and light filtering applications. Because of the rules governing abstracts, this abstract should not be used to construe the claims.