摘要:
Physico-chemical parameters, such as pH, pO.sub.2, pCO.sub.2, % O.sub.2, sat, etc., are determined with the use of a sensitive medium, such as a chromophore, having at least one optical property the profile of the spectrum whereof over a predetermined wavelength spectrum of optical radiation varies as a function of the parameter to be determined. The profile of the spectrum is analysed, for example by means of polychromatic sensor means acting on the medium's spectrum, which is preferably substantially continuous, so as to enable the analysis to be carried out with the aid of a profile-recognition function by typical pattern-recognition operations. The determination is thus rendered largely independent of numerous perturbing factors such as those resulting from the use of partially disposable monitoring units, thus eliminating the need for calibration steps.
摘要:
A device for determining the concentration of heparin in a fluid sample comprising: a container for holding the fluid sample; a container for holding the dye solution; a mixer for mixing the fluid sample and the dye solution; an illumination source for illuminating a mixture comprising the fluid sample and the dye solution with electromagnetic radiation having a substantially continuous range of wavelengths in the visible range; a detector for detecting the absorption spectrum of the mixture within the substantially continuous range of wavelengths; a recorder for recording the absorption spectrum of the mixture within the substantially continuous range of wavelengths; and a calculator for calculating a spectral parameter.
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:
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:
The present invention relates to luminescent compounds having a functionalised linker arm, their synthesis and use in bioconjugation and labelling of biomolecules, such as for example nucleosides, nucleotides, nucleic acids (DNA, RNA or PNA) and proteins, as well as their use in the execution of in vitro and in vivo analytic and diagnostic assays.
摘要:
A symmetric cyanine of the formula: wherein: X is selected from the group consisting of O, S and C(CH3)2; W represents non-metal atoms required to form a benzo-condensed or a naphto-condensed ring; R1 is selected from the group consisting of (CH2)nCH3, (CH2)nSO3− and (CH2)nSO3H, wherein n is an integer selected from 0 to 6 when R1 is (CH2)nCH3, and n is an integer selected from 3 to 6 when R1 is (CH2)nSO3− or (CH2)nSO3H; R2 and R3 are independently selected from the group consisting of H, a sulphonic moiety and a sulphonate moiety and Q is a substituted polymethine bridge.
摘要翻译:一种下式的对称花青:其中:X选自O,S和C(CH 3)2; W表示形成苯并稠合或萘并稠环所需的非金属原子;选择R1 由(CH 2)n CH 3,(CH 2)n SO 3 - 和(CH 2)n SO 3 H组成的组,其中当R 1是(CH 2)n CH 3时,n是选自0至6的整数,n是选自3至 6,当R 1是(CH 2)n SO 3 - 或(CH 2)n SO 3 H时; R 2和R 3独立地选自H,磺酸基和磺酸酯部分,Q是取代的聚甲炔桥。
摘要:
A silane-modified cyanine of Formula (I) includes the valence tautomers thereof: wherein R1 is a linear, saturated or unsaturated alkyl chain, having 1 to 30 carbon atoms, wherein one or more carbon atoms are optionally substituted by a 4-, 5- or 6-membered aromatic or non aromatic cyclic grouping of carbon atoms; R8 and R9 are independently selected from the group consisting of —OCH3, —OCH2CH3, —OCH2CH2CH3, —OCH(CH3)2, —OCH2CH2OCH3, —Cl, —Br, —I, Formula (II), Formula (III), —N(CH3)2, Formula (IV), Formula (V), methyl, ethyl, propyl, isopropyl. The synthesis method and the use as a fluorescent marker are for inorganic solid supports, for example silica nanoparticles, and/or for biomolecules such as peptides, antibodies, DNA, RNA, etc.
摘要:
Process for producing conductive and/or piezoresistive traces in a non-conductive polymeric substrate through laser irradiation, characterised in that said substrate is a composite polymeric material, comprising the matrix of a polymer not susceptible to carbonisation through laser irradiation and a dispersed phase comprising carbon nano fibres and/or nanotubes.
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.