A metal nanoparticle composition for the fabrication of conductive features. The metal nanoparticle composition advantageously has a low viscosity permitting deposition of the composition by direct-write tools. The metal nanoparticle composition advantageously also has a low conversion temperature, permitting its deposition and conversion to an electrical feature on polymeric substrates.

Metal nanoparticle compositions

Processes for the production of metal nanoparticles. In one aspect, the invention is to a process comprising the steps of mixing a heated first solution comprising a base and/or a reducing agent (e.g., a non-polyol reducing agent), a polyol, and a polymer of vinyl pyrrolidone with a second solution comprising a metal precursor that is capable of being reduced to a metal by the polyol. In another aspect, the invention is to a process that includes the steps of heating a powder of a polymer of vinyl pyrrolidone; forming a first solution comprising the powder and a polyol; and mixing the first solution with a second solution comprising a metal precursor capable of being reduced to a metal by the polyol.

Production of metal nanoparticles

One method for supporting a patient through a treatment regimen includes: accessing a log of use of a native communication application executing on a mobile computing device by a patient; selecting a subgroup of a patient population based on the log of use of the native communication application and a communication behavior common to the subgroup; retrieving a regimen adherence model associated with the subgroup, the regimen adherence model defining a correlation between treatment regimen adherence and communication behavior for patients within the subgroup; predicting patient adherence to the treatment regimen based on the log of use of the native communication application and the regimen adherence model; and presenting a treatment-related notification based on the patient adherence through the mobile computing device

Method for modeling behavior and health changes

The present application relates to a substrate for an organic electronic device, an organic electronic device, a method of preparing the substrate or the device, and a lighting apparatus. The substrate for an organic electronic device of the present application may, for example, be used to fabricate an organic electronic device, to which foreign substances such as moisture and oxygen are not permeated, and which has enhanced durability and superior light extraction efficiency. If the organic electronic device includes an encapsulation structure, the substrate may be stably attached to the encapsulation structure, and a surface hardness of outside connector part of the organic electronic device may be maintained to an appropriate level.

Substrate for organic electronic device

A particle comprising nanoparticles encapsulated within a host material is disclosed, wherein the particle includes a coating disposed over at least a portion of the outer surface of the particle. In certain embodiments, nanoparticles have light-emissive properties. In certain embodiments, the coating covers all or substantially all of the outer surface of the particle. The coating can comprise a resin having low oxygen permeability. In certain embodiments, the coating comprises a polyvinyl alcohol compound. In certain embodiments, the coating comprises a polyvinylidene dichloride compound. Other embodiments relate to a powder comprising a particle of the invention, a composition including a particle of the invention, a formulation including a particle of the invention, a coating comprising a particle of the invention, a method for making a particle of the invention, and products and applications including a particle of the invention. In preferred embodiments, a nanoparticle comprises a semiconductor nanocrystal.

Particles including nanoparticles, uses thereof, and methods

A particulate luminescent composition is disclosed that, when excited by electromagnetic radiation at a first frequency, emits electromagnetic radiation at a second frequency equal to or within 1500 cm'1 of the first frequency. The luminescent composition comprises substantially spherical particles having a weight average particle size of less than about 10 μm and a particle size distribution such that at least about 90 weight percent of the particles are not larger than twice the average particle size.

Luminescent compositions, methods for making luminescent compositions and inks incorporating the same

This invention is directed to security features that are formed, created, printed from inks comprising metallic particles and/or metallic nanoparticles. Preferably, the security feature is a reflective security features that comprises metallic nanoparticles where the reflective security features are formed by a direct-writing process, e.g., an ink jet printing process, using an ink comprising metallic nanoparticles. The invention is also directed to the use of these security features in many applications and to processes for making them.

Security features, their use, and processes for making them

The invention relates to reflective and non-reflective features formed from multiple inks. In one embodiment, the printed feature comprises a substrate (1) having a first region(2) and a second region(3), the first (2) and second(3) regions having different surface characteristics; a first printed element (14) disposed on the first region (2); and a second printed element (15) disposed on the second region(3), wherein the first printed element (14) is more adherent than the second printed element (15) to the first region (2). In another embodiment, the printed feature comprises multiple layers formed from different inks exhibiting enhanced durability. The invention is also to processes for forming these features, preferably through a direct write printing process.

Printable reflective features formed from multiple inks and processes for making them

The present invention relates to a composition having a first response to a first electromagnetic radiation and, after intermediate exposure to a second electromagnetic radiation, a second response to the first electromagnetic radiation, different from the first response. In one aspect, the composition exhibits a regenerated first response to the first electromagnetic radiation after exposure to a third electromagnetic radiation.

Compositions having multiple responses to excitation radiation and methods for making same

The invention relates to reflective and non-reflective features formed from multiple inks. In one embodiment, the printed feature comprises a substrate having a first region and a second region, the first and second regions having different surface characteristics; a first printed element disposed on the first region; and a second printed element disposed on the second region, wherein the first printed element is more adherent than the second printed element to the first region. In another embodiment, the printed feature comprises multiple layers formed from different inks exhibiting enhanced durability. The invention is also to processes for forming these features, preferably through a direct write printing process.

Richard A. Einhorn

Papers

Luminescent compositions, methods for making luminescent compositions and inks incorporating the same

Security features, their use, and processes for making them

Printable reflective features formed from multiple inks and processes for making them

Compositions having multiple responses to excitation radiation and methods for making same

Printable Features Formed from Multiple Inks and Processes for Making Them