A composition for forming a metallic luster film, includes: a thiophene polymer, in which a total content of an Fe atom, a Cu atom, an Mn atom, a Cr atom, and a Ce atom in the composition for forming a metallic luster film is 1500 ppm or less with respect to the thiophene polymer.

Water solvated polymeric dyes and polymeric tandem dyes having a blue excitation spectrum are provided. The polymeric dyes are conjugated polymers that can include a thiophene-containing co-monomer. The polymeric tandem dyes further include a signaling chromophore covalently linked to the conjugated polymer in energy-receiving proximity therewith. Also provided are labelled specific binding members that include the subject polymeric dyes. Methods of evaluating a sample for the presence of a target analyte and methods of labelling a target molecule in which the subject polymeric dyes find use are also provided. Systems and kits for practicing the subject methods are also provided.

The present invention provides, among other aspects, stabilized chromophoric nanoparticles. In certain embodiments, the chromophoric nanoparticles provided herein are rationally functionalized with a pre-determined number of functional groups. In certain embodiments, the stable chromophoric nanoparticles provided herein are modified with a low density of functional groups. In yet other embodiments, the chromophoric nanoparticles provided herein are conjugated to one or more molecules. Also provided herein are methods for making rationally functionalized chromophoric nanoparticles.

Nanoparticle compositions comprising nanoparticles formed from -conjugated cross-linked polymers are disclosed, together with their methods of manufacture and their applications. Owing to the nature of the cross-links formed therein, the nanoparticle compositions afford a high degree of manufacturing flexibility and control, as well as being amenable to facile purification for the purpose of imaging and electronics applications.

A method for forming organic semiconducting materials, including: providing a mixture having: a tetrathienoacene (FT4)-based monomer, and one of a thiophene-containing compound or an alkene-containing compound; and reacting the FT4-based monomer with the thiophene-containing compound or the alkene-containing compound in a one-step direct arylation reaction mechanism to form a final FT4-based organic semiconducting compound.

The present invention provides, among other aspects, stabilized chromophoric nanoparticles. In certain embodiments, the chromophoric nanoparticles provided herein are rationally functionalized with a pre-determined number of functional groups. In certain embodiments, the stable chromophoric nanoparticles provided herein are modified with a low density of functional groups. In yet other embodiments, the chromophoric nanoparticles provided herein are conjugated to one or more molecules. Also provided herein are methods for making rationally functionalized chromophoric nanoparticles.

Provided herein are spirocyclic polymers that exhibit aggregation-enhanced emission properties and methods of preparation thereof. The spirocyclic polymers can be used in the construction of integrated silicon photonics and to prepare two-dimensional fluorescent photopatterns useful for the manufacture of biological sensing and probing systems, optical writing and reading, anti-counterfeiting applications and the construction of optical display devices.

Fluorescent water soluble conjugated polymers including polycyclic aromatic comonomers are provided. The conjugated polymers can be linked to an acceptor fluorescent dye. The conjugated polymers find use in conjugates with biological substrates having applications in a variety of applications including methods of analyte detection.

The present invention provides, among other aspects, stabilized chromophoric nanoparticles. In certain embodiments, the chromophoric nanoparticles provided herein are rationally functionalized with a pre-determined number of functional groups. In certain embodiments, the stable chromophoric nanoparticles provided herein are modified with a low density of functional groups. In yet other embodiments, the chromophoric nanoparticles provided herein are conjugated to one or more molecules. Also provided herein are methods for making rationally functionalized chromophoric nanoparticles.

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.