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    • 5. 发明申请
    • PH-BIOSENSORS BASED ON COMPOUNDS PRODUCED FROM PYRUVIC ACID FOR MAGNETIC RESONANCE IMAGING AND SPECTROSCOPY AND THEIR USES
    • 基于由吡啶酸生产的用于磁共振成像和光谱的化合物的生物传感器及其用途
    • WO2015055727A1
    • 2015-04-23
    • PCT/EP2014/072137
    • 2014-10-15
    • TECHNISCHE UNIVERSITÄT MÜNCHEN
    • SCHILLING, FranzGLASER, SteffenDÜWEL, StephanGERSCH, Malte
    • G01N33/84A61B5/055A61K49/06G01N24/08G01R33/56A61K49/10
    • G01N33/84A61B5/055A61B5/08A61B5/14539A61B5/7278A61B2576/02A61K49/10G01N24/08G01N24/088G01N2458/15G01R33/281G01R33/465G01R33/5601
    • The present invention relates to the use of compounds with at least one pH-sensitive chemical shift for determining pH and/or measuring pH changes in magnetic resonance. More specifically, the present invention is related to compounds with at least one pH-sensitive chemical shift, such compound being selected from pyruvic acid and its metabolites, compounds produced from pyruvic acid after interaction with acid, and compounds comprising at least one enolic group whose pK a value is lowered through effects of at least one neighboring group into a physiological and/or pathological pH-range, and wherein the compound exhibits at least one pH-sensitive chemical shift in an NMR spectrum. The present invention further relates to biosensors comprising at least one of the compounds. The present invention is furthermore related to in vitro and in vivo methods for determining pH and/or measuring pH changes using the compounds or biosensors. The present invention also relates to methods of diagnosing and/or monitoring treatment of a disease causing changes in pH wherein the compounds or biosensors are applied. The present invention also relates to use of the compounds or biosensors in quality control of food or in the examination of plants and organisms.
    • 本发明涉及具有至少一种pH敏感化学位移的化合物用于测定pH和/或测量磁共振中的pH变化的用途。 更具体地说,本发明涉及具有至少一种pH敏感的化学位移的化合物,这种化合物选自丙酮酸及其代谢物,与酸相互作用后由丙酮酸生成的化合物,以及包含至少一个烯醇基团的化合物, pKa值通过至少一个相邻基团的影响降低到生理和/或病理学pH范围内,并且其中所述化合物在NMR光谱中表现出至少一个pH敏感的化学位移。 本发明还涉及包含至少一种化合物的生物传感器。 本发明还涉及使用化合物或生物传感器测定pH和/或测量pH变化的体外和体内方法。 本发明还涉及诊断和/或监测导致pH变化的疾病的治疗方法,其中施用化合物或生物传感器。 本发明还涉及化合物或生物传感器在食品质量控制或植物和生物体检查中的应用。
    • 7. 发明申请
    • METHOD FOR ANALYSIS BY NUCLEAR MAGNETIC RESONANCE OF A SAMPLE INCLUDING A SPECIES TO BE CHARACTERIZED AND A REFERENCE SPECIES
    • 用于分析样品的核磁共振的方法,包括要表征的物种和参考物种
    • WO2014102293A3
    • 2014-11-06
    • PCT/EP2013078007
    • 2013-12-24
    • UNIVERSITÉ D AIX MARSEILLECENTRE NAT RECH SCIENT
    • LE FUR YANN
    • G01R33/46G01R33/465
    • G01R33/4625G01N24/08G01R33/3415G01R33/465
    • The invention relates in particular to a method for analyzing, by nuclear magnetic resonance (NMR), at least one sample including at least one species to be characterized as well as a reference species having a content, in the sample, that is more than twice the content of the at least one species to be characterized, said method including the following steps: a. applying at least one constant field B0 to at least one sample, b. acquiring (310, 1313), by means of one or more antennas, one or more complex free induction decay (FID) signals S(t), each complex FID signal S(t) including a real part (140) and an imaginary part (150); the acquisition step being carried out such that, in each complex FID signal S(t), the amplitude of the signal of the reference species is at least twice as high as the amplitude of the signal of at least one species to be characterized, characterized in that said method also includes at least the following step: c. for each complex FID signal S(t), calculating (340, 1314) the module of each complex FID signal S(t).
    • 本发明特别涉及一种用于通过核磁共振(NMR)分析至少一种样品的至少一种样品,该样品包含至少一种待表征的物质以及在样品中具有多于两倍的物质的参考物质 要表征的至少一种物质的含量,所述方法包括以下步骤:a。 将至少一个常数场B0应用于至少一个样本,b。 通过一个或多个天线获取(310,1313)一个或多个复数自由感应衰减(FID)信号S(t),每个复数FID信号S(t)包括实部(140)和虚部 (150); 执行获取步骤,使得在每个复合FID信号S(t)中,参考物种的信号的振幅至少是要表征的至少一种物种的信号的幅度的两倍,其特征在于 因为所述方法还至少包括以下步骤:c。 对于每个复合FID信号S(t),计算(340,1314)每个复合FID信号S(t)的模块。