Abstract: An optical fiber teeth illumination apparatus comprises a handle and a treatment device. The handle has a hollow lighting section at a front end to hold a lighting element and at least one optical fiber. The lighting element is connected to a power source. The lighting section has at least one aperture. The lighting element and the optical fiber are interposed by a condensing light element which focuses light generated by the lighting element on an input end of the optical fiber. The optical fiber has at least one output end facing the aperture to project the light outside. The treatment device is fastened to the front side of the lighting section. Thus dentists can correctly inspect ailing portion and perform treatment without holding a lighting device, and overcome the problem of holding multiple tools such as an oral mirror, lighting device and treatment apparatus at the same time.

Abstract: A clinical root canal therapy instrument equipped with illumination comprises a handgrip and a therapy element. The handgrip includes a hollow lighting section which has a coupling portion fastened to the therapy element. The therapy element can be a root canal oral mirror. The lighting section holds at least one lighting element connected to a power source and includes at least one aperture on the wall thereof to emit light. The therapy element has one end formed a pushing portion to isolate a patient's tongue or cheek. The handgrip and the root canal oral mirror form an obtuse angle therebetween. The pushing portion includes at least one light penetrating element on an outer wall thereof. Thus the instrument of the invention can function as an independent flashlight or be fastened to the root canal oral mirror to provide illumination to aid a dentist to inspect or treat the patient's teeth.

Abstract: A polymer-nanoparticle composition of formula II includes a polymer of formula I. The polymer has two portions. One portion of the polymer includes a binding group that binds to a nanoparticle. The other portion of the polymer includes a hydrophobic moiety.

Abstract: A fluorene-based copolymer of formula I includes a monomeric unit that includes a fluorene group and at least one steric hindering chemical group to provide sufficient steric interaction such that the spatial conformation of the fluorene-based copolymer is substantially non-planar. The fluorene-based copolymer exhibits UV light emission.

Abstract: Copolymers and methods using the copolymers control the stability, the homogeneity of mixtures and the chargeability of a nanoparticle. A block copolymer-nanoparticle composition includes first, second and third block units that each include repeating units of respective monomers. The monomer of the first block unit includes a binding group that binds to the nanoparticle. The monomer of the second block unit includes a hydrophobic moiety that provides steric stabilization of the nanoparticle and homogeneity of mixtures of the copolymer-nanoparticle composition in a non-polar medium. The monomer of the third block unit includes a chargeable group that imparts a charge to the nanoparticle. An order of the respective block units in the copolymer and the number of repeating units of the monomer in the respective block units control the stability, the homogeneity of mixtures and the charge of the nanoparticle.

Abstract: The present invention is drawn toward a chemical or biological sensor that can comprise a semi-conducting nanowire and a chemical or biological sensing molecule tethered to the semi-conducting nanowire through a spacer group including a hydrophilic reactive group. In one embodiment, the semi-conducting nanowire can be part of an array of like or similar semi-conducting nanowires. Electrical leads can provide an electrical current to the array, and a signal measurement apparatus can be electrically coupled to the array, and can be configured for detecting changes in the electrical current of the array.

Abstract: An electronic ink containing charged particles includes a combination of resin particles, a pigment, and a charge director. The resin particles exhibit an average particle size less than 1.0 micron and contain a resin that exhibits a molecular weight of 500 to 20,000. The pigment is loaded on the resin particles. The charge director can physically associate with the resin particles. The charged particles may be negative or positive.

Abstract: The present invention is drawn toward a chemical or biological sensor that can comprise a semi-conducting nanowire and a chemical or biological sensing molecule tethered to the semi-conducting nanowire through a spacer group including a hydrophilic reactive group. In one embodiment, the semi-conducting nanowire can be part of an array of like or similar semi-conducting nanowires. Electrical leads can provide an electrical current to the array, and a signal measurement apparatus can be electrically coupled to the array, and can be configured for detecting changes in the electrical current of the array.

Abstract: An electronic ink containing charged particles includes a combination of resin particles, a pigment, and a charge director. The resin particles exhibit an average particle size less than 1.0 micron and contain a resin that exhibits a molecular weight of 500 to 20,000. The pigment is loaded on the resin particles. The charge director can physically associate with the resin particles. The charged particles may be negative or positive.

Abstract: Various embodiment of the present invention are directed to organic molecules that are reconfigurable under application of an external electric field. One organic molecule embodiment of the present invention has the structure: where L1X1 and L2X2 are optional connector groups, A represents an electron acceptor group, D represents an electron donor group, R and R? represent spacer molecules, and R1, R2, R3, R4, R5, R6, R7, and R8 represent atoms and hydrocarbons.

Abstract: A tooth cleaning object comprises a force applying portion, a tooth cleaning portion connected to the force applying portion and at least one bracing portion bridging the tooth cleaning portion and the force applying portion. The force applying portion is vertical to the tooth cleaning portion. The tooth cleaning object of the invention can be easily used to clean user's molar teeth through the tooth cleaning portion. The bracing portion reinforces the connection of the force applying portion and the tooth cleaning portion so that it is not easily broken under a shearing force.

Abstract: A phthalocyanine dye with extended conjugation includes one or both of a phthalocyanine component and a naphthalocyanine component and at least one water soluble substituent on an aryl group of the phthalocyanine dye. The extended conjugation of the phthalocyanine dye includes at least one benzene moiety of the component being one of (a) joined to an aryl group either indirectly using an alkylene linkage or directly, (b) joined to a benzene moiety of another of the components to form an oligomer of the components, and (c) a combination of (a) and (b). The extended conjugation shifts absorption of the phthalocyanine dye to greater than 800 nm.

Abstract: An electrophoretic particle salt that includes a cationic electrophoretic particle and an anionic group ionically associated with the cationic electrophoretic particle is employed in an electrophoretic display. A spacer group chemically bonds a cationic moiety to a surface of the electrophoretic particle. A method of making the electrophoretic particle salt includes particle surface modification, nucleophilic substitution to create an interim salt and anion exchange. The electrophoretic particle salt has an ionization constant that favors dissociation into a positively charged electrophoretic particle and the anionic group in a nonpolar medium. The electrophoretic display includes a pair of electrodes and a dispersion of the electrophoretic particle salt in a nonpolar medium in a gap between the pair of electrodes.

Abstract: The present invention is drawn to a layered organic device, and a method of forming the same. The method includes steps of applying a first solvent-containing organic layer to a substrate and removing solvent from the first solvent-containing organic layer to form a first solidified organic layer. Additional steps include applying a second solvent-containing organic layer to the first solidified organic layer and removing solvent from the second solvent-containing organic layer to form a second solidified organic layer. The first solidified organic layer can be crosslinked, which suppresses negative impact to components in the first solidified organic layer when the solvent of the second solvent-containing organic layer is deposited on the first solidified organic layer.

Abstract: A method for forming a functionalized latex polymer includes polymerizing a heterogeneous dispersion of water insoluble monomers in water, thereby forming a latex polymer. An at least partially water soluble halogenated non-ionic group is reacted with the latex polymer, whereby a halogen is displaced from the non-ionic group, thereby forming an at least partially water soluble non-ionic group that attaches to the latex polymer.

Abstract: A tongue isolator equipped with lighting comprises a handgrip and an expanding portion which includes a connecting member and a first expanding wall and a second expanding wall that are connected to two sides of the connecting member to jointly form a U-shape with an opening facing forward. The handgrip has a front end connected to the first expanding wall. The first and second expanding walls are formed in an arched shape to mate the curvature of gum. The first and second expanding walls spaced from each other have an upper distance greater than a lower distance. The first and second expanding walls further have respectively a mirror located at an inner side and an outer side with. Each mirror contains at least one lighting element. The isolator thus can be coupled on a patient's teeth to separate the tongue and cheek and illuminate each tooth surface.

Abstract: The methods and compositions of the present invention provide an ink jet ink having a colorant, an aqueous vehicle, and water stable and water soluble phthalocyanine and/or naphthalocyanine dye chromophores.

Abstract: An electronic device with a covering lid for covering an insert hole includes a housing and the covering lid. The housing includes a first surface and a second surface which are connected to each other, and the first surface includes an insert hole. The covering lid includes a covering plate and a flexible handle, and the covering plate is disposed on the first surface and covers the insert hole. A first end of the flexible handle is connected to the second surface of the housing, and a second end of the flexible handle is connected to the covering plate. A bending portion is disposed between the first end and the second end to provide spring force to the covering plate to make the covering plate move along a direction away from the insert hole automatically when the covering plate is unfolded.

Abstract: A near infrared dye composition includes a microcapsule that includes an inner core region and an outer shell. The inner core region includes a cross-linked polymer-near infrared dye aggregate. The outer shell includes nanoparticles.

Abstract: The present invention is drawn to the use of blocked maleimide monomers for the preparation of latex particles, including those having active maleimide surface groups. In accordance with this, a method of forming latex particulates can comprise the steps of preparing a monomer emulsion including an aqueous phase and an organic monomer phase, wherein the organic monomer phase includes at least one blocked maleimide monomer; polymerizing the organic monomer phase to form blocked maleimide latex particulates dispersed in the aqueous phase; and unblocking the blocked maleimide latex particulates to form latex particulates with active maleimide groups at least on the surface of the latex particulates.