摘要:
A fluorescent cyanine dye of the following general formula is disclosed: wherein: X1 and X2 are independently selected from the group consisting of —O—, —S—, —C(CH3)2 or —C═CH2; Y1 and Y2 are nonmetal atoms required to form a benzo-condensed or naphtho-condensed ring; Q is a conjugated moiety that increases the fluorescent quantum yield and the stability of the compound; R1 and R2 are independently selected from the group consisting of H, C1-C4, alkyl, alkylensulfonic group or alkylensulfonate group wherein the alkylene group has from 1 to 4 carbon atoms; R3, R4 and R5 are independently selected from the group consisting of H, a sulfonic group, a sulfonate group, alkylensulfonic, alkylensulfonate and —SO2NH(CH2)m—W—(CH2)nZ, wherein alkylene has 1 to 4 carbon atoms, with the proviso that at least one of R1 to R5 contains a sulfonic or sulfonate group; W is absent or is a group selected from —SO2NH, —O—, —COO—, or —CONH—; n=0-12 and m=0-12 with the provisos that m+n≦12 and at least one of m and n≠0; and Z is, or contains a N, O or S nucleophile functionality or is, or contains a functionality capable of reacting with N, O or S nucleophiles. Nucleophile functionalities include —NH2, —OH, and —SH groups; groups capable of reacting with such functionalities include —COCl, —COOCOR, —CONHNH2, N-hydroxysuccinimido esters, —NCS, —CHO, —COCH2I, phosphoramidite and maleimido.
摘要:
The present invention is directed to fluorescent dyes and its valence tautomers of the formula wherein Q represents a conjugated moiety that increases the fluorescent quantum yield of the compound; R.sub.1 is a functionalized group of the formula--(CH.sub.2).sub.j Y, wherein Y is selected from the group consisting of SO.sub.3 H, COOH, NH.sub.2, CHO, NCS, epoxy, phthalimido, and COOZ, wherein Z represents a leaving group; R.sub.2 is a functionalized group of the formula --(CH.sub.2).sub.k Y', wherein Y' is selected from the group consisting of SO.sub.3 H, COOH, NH.sub.2, CHO, NCS, epoxy, phthalimido, and COOZ, wherein Z represents a leaving group; M.sup.+ is a counterion selected from the group consisting of ammonium, alkali metal cations, and alkaline earth metal cations; n=1 to 4; m=1 to 4; j=2 to 10; and k=2 to 10.
摘要翻译:PCT No.PCT / EP96 / 04377 371日期:1998年5月11日 102(e)日期1998年5月11日PCT提交1996年10月8日PCT公布。 公开号WO97 / 13810PC。 日期1997年04月17日本发明涉及下式的荧光染料及其价态互变异构体:其中Q表示增加化合物的荧光量子产率的共轭部分; R 1是式 - (CH 2)j Y的官能化基团,其中Y选自SO 3 H,COOH,NH 2,CHO,NCS,环氧,邻苯二甲酰亚氨基和COOZ,其中Z表示离去基团; R2是式 - (CH2)kY'的官能化基团,其中Y'选自SO 3 H,COOH,NH 2,CHO,NCS,环氧,邻苯二甲酰亚氨基和COOZ,其中Z表示离去基团; M +是选自铵,碱金属阳离子和碱土金属阳离子的抗衡离子; n = 1〜4; m = 1〜4; j = 2〜10; k = 2〜10。
摘要:
A method for reducing foam in a blood substance comprising contacting at least a portion of the blood substance with a contact-generating substrate which comprises an antifoaming agent, wherein the antifoaming agent comprises a triglyceride of one or more saturated or unsaturated C.sub.14 -C.sub.24 fatty acids or a mixture of triglycerides having one or more saturated or unsaturated C.sub.14 -C.sub.24 fatty acids, wherein the triglyceride or mixture of triglycerides has a hydrophilic-lipophilic balance of from 5 to 10.
摘要:
Method for increasing the emission of light from a chemiluminescent reaction including luminol, a peroxidase enzyme, an oxidant and a mediator of electrons through the use of a hypernucleophilic acylation catalyst belonging to the class of 4-aminopyridines. It is also described the use in diagnostic assays of chemiluminescent substrates containing said catalysts.
摘要:
A process for preparing an asymmetrical indocyanine dye comprising the steps of: a) reacting a first quaternised indolenine or substituted indolenine with a compound of the formula (II) or hydrochloride thereof, wherein n is 0 or 1 Ph is phenyl or substituted phenyl X is hydrogen, halogen or alkyl, preferably chlorine, in a solvent selected from the group consisting of acetic acid, acetic anhydride and mixtures thereof in the presence of acetyl chloride, to obtain an intermediate hemicyanine, and b) further reacting said intermediate hemicyanine with a second quaternised indolenine or substituted indolenine different from said first indolenine.
摘要:
The apparatus comprises an implantation device having a body, the surface of which has at least a portion coated with a receptor, and a preparation containing a ligand formed from the combination of an active principle with a substance capable of binding to the receptor. This preparation may be brought into contact when desired with the implantation device which is, for example, a stent.
摘要:
Electrochemiluminiscent moieties having the formula �Re(P).sub.m (L.sup.1).sub.n (L.sup.2).sub.o (L.sup.3).sub.p (L.sup.4).sub.q (L.sup.5).sub.r (L.sup.6).sub.s !.sub.t (B).sub.u wherein P is a polydentate ligand of Re; L.sup.1, L.sup.2, L.sup.3, L.sup.4, L.sup.5 and L.sup.6 are ligands of Re, each of which may be the same as or different from each other ligand; B is a substance which is a ligand of Re or is conjugated to one or more of P, L.sup.1, L.sup.2, L.sup.3, L.sup.4, L.sup.5 or L.sup.6 ; m is an integer equal to or greater than 1; each of n, o, p, q, r and s is zero or an integer; t is an integer equal to or greater than 1; and u is an integer equal to or greater than 1; P, L.sup.1, L.sup.2, L.sup.3, L.sup.4, L.sup.5, L.sup.6 and B being of such composition and number that the chemical moiety can be induced to emit electromagnetic radiation and the total number of bonds to Re provided by the ligands of Re being equal to the coordination of Re are disclosed. Qualitative and quantitative electrochemiluminescent assays for analytes of interest present in multicomponent liquids using these moieties are disclosed. These methods comprise contacting a sample with a reagent labeled with an electrochemiluminescent chemical moiety containing rhenium and capable of combining with the analyte of interest, exposing the resulting sample to chemical, electrochemical, or electromagnetic energy and detecting electromagnetic radiation emitted by the electrochemiluminescent chemical moiety.
摘要:
The present invention relates to a kit for performing an assay. The kit comprises luminol, an oxidant, an electron mediator and a hypernucleophilic acylation catalyst.
摘要:
Luminescent and/or electroactive nanoparticles suitable for MRI (Magnetic Resonance Imaging) and/or PET (Positron Emission Tomography) are prepared by mixing luminescent or electroactive compounds and ethyl oxide/propyl oxide block-copolymers in an organic solvent, which is thereafter evaporated in order to obtain a residue; and by hydrolyzing-condensating tetraalkoxysilanes in an aqueous solution in the presence of the residue; the obtained nanoparticles show no or a negligible release of the luminescent or electroactive compounds and are useful for bio-analytic and bio-medic applications.
摘要:
Method for increasing the emission of light from a chemiluminescent reaction including luminol, a peroxidase enzyme, an oxidant and a mediator of electrons through the use of a hypernucleophilic acylation catalyst belonging to the class of 4-aminopyridines. It is also described the use in diagnostic assays of chemiluminescent substrates containing said catalysts.