A method, system, and taggants (tracers) for quantifying zonal flow in a multi-lateral well having a wellbore with a first lateral and second lateral. The technique includes flowing first produced fluid from a formation via the first lateral into production tubing providing a first taggant through a first dosing tubing to the first lateral, and flowing second produced fluid from the formation via the second lateral into the production tubing and providing a second taggant through a second dosing tubing to the second lateral. A produced stream having the first produced fluid and the second produced fluid flows uphole through the production tubing and discharges from the wellbore. The produced stream may be analyzed to measure an amount of the first taggant in the produced stream and an amount of the second taggant in the produced stream.

Certain embodiments of the invention provide a polypeptide comprising: (a) an amino acid sequence encoding a first chromophore; (b) a first linker; (c) an amino acid sequence having at least about 80% sequence identity to an amino acid sequence encoding a troponin C; (d) a second linker; and (e) an amino acid sequence encoding a second chromophore; wherein the first and second chromophores are a Frster resonance energy transfer (FRET) donor-acceptor pair; wherein the first chromophore is a donor chromophore and the second chromophore is an acceptor chromophore, or wherein the first chromophore is an acceptor chromophore and the second chromophore is a donor chromophore; and wherein the polypeptide is capable of integrating into a sarcomere. Certain embodiments of the invention also provide methods of using such polypeptides.

A method of disinfection of a surface of a subject of harmful microorganisms including pathogenic bacteria and viruses upon visible light irradiation using a genetically hybridized fluorescent silk is provided. The method includes placing a predetermined quantity of the genetically hybridized fluorescent silk i) directly on to a skin surface of a subject; or ii) on a medium and then placing the medium on the skin surface of the subject. The method further includes applying light in the visible spectrum for a predetermined amount of time to the placed quantity of genetically hybridized fluorescent silk.

A photoelectric device is disclosed. The photoelectric device includes a first electrode, a second electrode, and an electrolyte disposed between the first electrode and the second electrode. The second electrode includes a transparent layer for allowing light to penetrate into the second electrode, an electron transport layer coupled to the transparent layer, and a genetically hybridized fluorescent silk layer as a photo-sensitizer coupled to the electron transport layer.

The present invention relates to a process of preparing a rubber-like material containing a protein immobilized therein, as well as a corresponding rubber-like material, the process comprising the steps of (a) mixing a protein, a branched polymer such as trimethylolpropane ethoxylate and a linear polymer such as poly(ethylene oxide) in an aqueous solution to form a gel, and (b) drying the gel to obtain a rubber-like material containing the protein immobilized therein, wherein the branched polymer comprises at least three polymeric branches bound to a central branching unit. The rubber-like material allows the immobilization and stabilization of a wide range of different proteins, including luminescent proteins as well as enzymes, and can particularly advantageously be used as down-converting material for light-emitting diodes (LEDs), for diagnostic applications, and in bioreactors.

The present invention relates to a composition comprising at least one light emitting moiety.

In one exemplary embodiment, an apparatus can be provided which includes at least one biological medium that causes gain. According to another exemplary embodiment, an arrangement can be provided which is configured to be provided in an anatomical structure. This exemplary arrangement can include at least one emitter having a cross-sectional area of at most 10 microns within the anatomical structure, and which is configured to generate at least one laser radiation. In a further exemplary embodiment, an apparatus can be provided which can include at least one medium which is configured to cause gain; and at least one optical biological resonator which is configured to provide an optical feedback to the medium. In still another exemplary embodiment, a process can be whereas, a solution of an optical medium can be applied to a substrate. Further, it is possible to generate a wave guide having a shape that is defined by (i) at least one property of the solution of the optical medium, or (ii) drying properties thereof.

The present invention relates to a flame retardant identification system and, more particularly, to a tracing and tagging agent including a fluorescent tracing compound for substrates such as textiles and lumber.

This deals with a luminescent salt comprising a metal cluster anion and an organic cation, wherein the metal cluster anion comprises a metal cluster with at least two metal atoms, and ligands, the metal atoms being chosen from the group consisting of molybdenum, rhenium, tungsten, thallium, niobium, and mixtures thereof, wherein the organic cation comprises a cationic head substituted by at least one substituent including a polymerizable functional group. It also deals with a polymeric material comprising a polymer matrix which has polymerized with this luminescent salt.

A light-emitting electrochemical cell 10 includes an emitting layer 12 and electrodes 13 and 14, one on each side of the emitting layer 12. The emitting layer 12 contains a light-emitting material and an ionic compound. The ionic compound has general formula (1), wherein M is N or P; R.sub.1, R.sub.2, R.sub.3, and R.sub.4 each independently represent a C1-C20 saturated aliphatic group; and X is preferably an anion having a phosphoric ester bond or a sulfuric ester bond. The light-emitting material is preferably an organic light-emitting polymer, a metal complex, an organic low molecular compound, or a quantum dot. ##STR00001##