The present disclosure relates to a fluorogenic pH-sensitive dye and a film for detecting pH using the fluorogenic pH-sensitive dye on a polymer film. The fluorogenic pH-sensitive dye includes an aryl compound having a sulfonyl group (—SO.sub.2) and an agarose compound covalently bonded to the sulfonyl group (—SO.sub.2) of the aryl compound.

The present invention relates to a compound of the following formula (I):

##STR00001##

The invention also relates to uses thereof as dye or pigment, notably as a luster pigment. The invention relates also to a reflective or photonic or nanophotonic or optoelectronic device comprising a compound of the invention. The invention relates also to a metal-like reflective coating, a metal-like particle or an organic-based metal-like liquid film comprising a compound of the invention.

The present invention relates to the unexpected discovery of novel multi-aromatic, multi-substituted compounds. In certain embodiments, the compounds of the invention are generated by condensing at least two phenolic- and/or aniline-containing monomers and an aromatic, aliphatic or heteroaromatic aldehyde- and/or ketone-containing monomer. In other embodiments, at least one monomer is isolated from a bio-based resource. In yet other embodiments, the compounds of the invention are bis- or poly-phenolic compounds.

Provided are methods for labeling target molecules, such as nucleic acids, with fluorescent dye compounds having the formula

##STR00001##

One method embodiment includes contacting reactive group Z of the fluorescent dye compound with the target molecule such that reactive group Z reacts with the target molecule to form a covalent bond between the group and the target molecule. Another method embodiment includes contacting a fluorescent dye compound that further includes a first member of a binding pair, with a target molecule that includes a second member of the binding pair. Also provided are target molecules labeled with the fluorescent dye compounds.

Provided are methods for labeling target molecules, such as nucleic acids, with fluorescent dye compounds having the formula

##STR00001##

One method embodiment includes contacting reactive group Z of the fluorescent dye compound with the target molecule such that reactive group Z reacts with the target molecule to form a covalent bond between the group and the target molecule. Another method embodiment includes contacting a fluorescent dye compound that further includes a first member of a binding pair, with a target molecule that includes a second member of the binding pair. Also provided are target molecules labeled with the fluorescent dye compounds.

Light harvesting luminescent multichromophores that are configured upon excitation to transfer energy to, and amplify the emission from, an acceptor signaling chromophore in energy-receiving proximity therewith are provided. Also provided are compositions for labelling a target. The labelling composition may include a donor light harvesting multichromophore and an acceptor signaling chromophore in energy-receiving proximity to the donor light harvesting multichromophore. Also provided is an aqueous composition for labelling a target, including: a donor light harvesting multichromophore; an acceptor signaling chromophore in energy-receiving proximity therewith; and a sensor biomolecule. Methods for using the subject compositions are also provided.

Light harvesting luminescent multichromophores that are configured upon excitation to transfer energy to, and amplify the emission from, an acceptor signaling chromophore in energy-receiving proximity therewith are provided. Also provided are compositions for labelling a target. The labelling composition may include a donor light harvesting multichromophore and an acceptor signaling chromophore in energy-receiving proximity to the donor light harvesting multichromophore. Also provided is an aqueous composition for labelling a target, including: a donor light harvesting multichromophore; an acceptor signaling chromophore in energy-receiving proximity therewith; and a sensor biomolecule. Methods for using the subject compositions are also provided.

A compound of Formula (XL)

##STR00001##

A laundry care composition comprises (a) at least one laundry care ingredient and (b) a compound of Formula (XL). A method of treating a textile comprises the steps of (a) providing such a laundry care composition; (b) adding the laundry care composition to a liquid medium; (c) placing textile articles in the liquid medium; (d) optionally, rinsing the textile; and (e) drying the textile articles.

A compound of Formula (XL)

##STR00001##

A laundry care composition comprises (a) at least one laundry care ingredient and (b) a compound of Formula (XL). A method of treating a textile comprises the steps of (a) providing such a laundry care composition; (b) adding the laundry care composition to a liquid medium; (c) placing textile articles in the liquid medium; (d) optionally, rinsing the textile; and (e) drying the textile articles.

Provided are methods for labeling target molecules, such as nucleic acids, with fluorescent dye compounds having the formula ##STR00001##
One method embodiment includes contacting reactive group Z of the fluorescent dye compound with the target molecule such that reactive group Z reacts with the target molecule to form a covalent bond between the group and the target molecule. Another method embodiment includes contacting a fluorescent dye compound that further includes a first member of a binding pair, with a target molecule that includes a second member of the binding pair. Also provided are target molecules labeled with the fluorescent dye compounds.