The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2009
Filed:
Jun. 09, 2005
Tero Soukka, FI-20540 Turku, FI;
Harri Härmä, FI-20500 Turku, FI;
Timo Lövgren, FI-21610 Kirjala, FI;
Tero Soukka, FI-20540 Turku, FI;
Harri Härmä, FI-20500 Turku, FI;
Timo Lövgren, FI-21610 Kirjala, FI;
Other;
Abstract
A homogeneous bioassay including a first group labelled with an energy donor and a second group labelled with an energy acceptor, where the donor is a luminescent lanthanide label capable of up-converting a lower-energy excitation to a higher-energy emission, where the acceptor is either a luminescent or a non-luminescent label, and where the increase or decrease, respectively, in energy transfer from the donor to the acceptor resulting from shortening or lengthening of the distance between the labels is measured. The assay is performed in a biological fluid which absorbs radiation in the wavelength range 300 to 600 nm, the measurement is carried out at a wavelength >570 nm, and the donor label, which is excitable at wavelength longer than its emission wavelength, is excited in the wavelength window in which the biological fluid does not essentially absorb the excitation radiation.