Conjugates comprising a drug, cell or biological molecule bound to a photoluminescent polymer nanoparticle, in particular a cross-linked polyfluorene nanoparticle, are described herein, as well as their methods of manufacture and their uses in biological imaging and sensing applications.

A particle-containing liquid having a medium and fluorescent dye-containing resin particles, wherein, in the particle-containing liquid obtained by adding fluorescent dye-containing resin particles to the medium, the rate of change in the backscatter intensity (transmitted light) at the center of the height of the particle-containing liquid left to stand for 24 hours after said addition is not less than −1% based on the particle-containing liquid immediately after said addition, and wherein the fluorescent dye-containing resin particles have a particle size ranging from 40 nm to 200 nm.

The present disclosure provides fluorescent polyindenofluorene polymers or macromers with unique optical properties that are stable. The polymeric fluorophores are useful in various bioassays formats. The inventive polymers are useful in assays relying on fluorescence resonance energy transfer (FRET) mechanisms where two fluorophores are used.

Luminescent solar concentrator (LSC) comprising an aqueous microemulsion including at least one photoluminescent compound. Said luminescent solar concentrator (LSC) can be advantageously used in solar devices (i.e. devices for exploiting solar energy) such as, for example, photovoltaic cells (or solar cells), photoelectrolytic cells. Said luminescent solar concentrator (LSC) can also be advantageously used in photovoltaic windows.

A polymer compound has a repeating unit represented by general formula (1): ##STR00001##
wherein R.sup.1a represents an alkyl group, an aryl group, a monovalent aromatic heterocyclic group or an aralkyl group, each possibly substituted and the same or different; and X.sup.1a represents a group selected from formulae (1a) to (1c).] ##STR00002##
wherein R.sup.1c represents an aryl group or a monovalent aromatic heterocyclic group, possibly substituted; and R.sup.1d to R.sup.1f represent each independently an alkyl group, an aryl group, a monovalent aromatic heterocyclic group, an alkoxy group, an aryloxy group, an aralkyl group, an arylalkoxy group, a substituted amino group, a substituted carbonyl group, a substituted carboxyl group, a fluorine atom or a cyano group; and the pairs R.sup.1d and R.sup.1e, R.sup.1f and R.sup.1g, R.sup.1d and R.sup.1f, and R.sup.1e and R.sup.1g may be mutually linked to form a ring together with a carbon atom to which they are linked.

The present disclosure provides encoded chromophoric polymer particles that are capable of, for example, optical and/or biomolecular encoding of analytes. The present disclosure also provides suspensions comprising a plurality of encoded chromophoric polymer particles. The present disclosure also provides methods of using the encoded chromophoric polymer particles and systems for performing multiplex analysis with encoded chromophoric polymer particles.

Embodiments of the invention relate to a composite film and a fabrication method thereof, a photoelectric element and a photoelectric apparatus. The fabrication method of the composite film includes: preparing a polyfluorene-based compound solution, wherein the polyfluorene-based compound solution includes polyfluorene or polyfluorene derivatives; preparing a quantum dot solution; mixing the polyfluorene-based compound solution and the quantum dot solution together to prepare a mixed solution; removing a solvent in the mixed solution to prepare the composite film.

The present invention relates, inter alia, to compositions comprising, a compound which is able to emit and/or absorb light and a compound which is able either to absorb or emit light, where both compounds each include at least one fluorine radical. The present invention is furthermore directed to a process for the preparation of the composition, to the use of the composition in electronic devices and to the device itself.

This application discloses a white-light hyperbranched conjugated polymer, a method for preparing the same and its use. The polymer uses a red phosphorescent Ir(III) complex as a core and polyfluorene derivative blue fluorescent materials as a framework which either contains or does not contain carbazole derivatives, and the white light hyperbranched polymers realize white-light emission by adjusting the content of the red phosphorescent Ir(III) complex connected using the complementation of blue and red color. The electroluminescent spectrum of the conjugated polymer in the present application covers the whole visible light emission area and is close to the pure white light emission, by which the conjugated polymer could be used as a material used in light-emitting layer to prepare the organic electroluminescent devices.

An object of the invention is to provide a resin which does not need to incorporate a fluorescent substance and exhibits fluorescence itself. Another object of the invention is to provide a liquid crystal polymer which does not contain a bleeding out substance such as hydrophobic silica and barium sulfate and which has an effect of suppressing fibrillation in the resin itself. The invention relates to a liquid crystal polymer comprising a copolymer of a polymerizable monomer (A) selected from the group consisting of pyromellitic acid or anhydride thereof and a reactive derivative thereof and an other polymerizable monomer (B).