Fluorescent labelling compositions and methods for their use
First Claim
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1. A method for labelling a target substance in or on a solid phase, said method comprising:
- providing a labelling composition including;
(a) a linear polysaccharide having a molecular weight of at least 500 kD;
(b) a plurality of molecules which specifically bind to the target substance attached to spaced-apart locations along the linear polysaccharide, and(c) a multiplicity of fluorescent dye molecules bound to at least some of the target-binding molecules; and
exposing the labelling composition to the solid phase.
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Abstract
A fluorescent labelling composition comprises a linear polysaccharide backbone molecule having a plurality of target-binding molecules, such as antibodies or nucleic acids, attached at spaced-apart intervals thereon. Each of the target-binding molecules, in turn, includes a multiplicity of fluorescent dye molecules bound thereto. In this way, fluorescent signal introduced to a single target-site on a solid phase surface may be increased without loss of binding activity.
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Citations
12 Claims
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1. A method for labelling a target substance in or on a solid phase, said method comprising:
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providing a labelling composition including; (a) a linear polysaccharide having a molecular weight of at least 500 kD; (b) a plurality of molecules which specifically bind to the target substance attached to spaced-apart locations along the linear polysaccharide, and (c) a multiplicity of fluorescent dye molecules bound to at least some of the target-binding molecules; and exposing the labelling composition to the solid phase. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification