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    • 9. 发明公开
    • PRODUCTS FOR THE DELIVERY OF THERAPEUTIC/DIAGNOSTIC COMPOUNDS TO THE HEART
    • 用于向心脏递送治疗/诊断化合物的产品
    • EP3236947A1
    • 2017-11-01
    • EP15825795.6
    • 2015-12-22
    • Consiglio Nazionale Delle RicercheIstituto Nazionale Assicurazione Contro gli Infortuni sul Lavoro
    • CATALUCCI, DanieleMIRAGOLI, MicheleIAFISCO, MicheleTAMPIERI, Anna
    • A61K9/14A61K9/51
    • A61K9/5115A61K9/007A61K9/143A61K9/5192A61K31/7105A61K38/03A61K47/52A61K47/6929C12N15/113C12N2310/141C12N2320/32
    • The invention relates to a process for the preparation of a product comprising one or more nanoparticles of calcium phosphate (CaP-NP) with negative surface charge having a ζ-potential in the range from −41.0 mV to −27.0 mV comprising the steps of: a) maintaining a mixture having a pH in the range from 7 to 10 and comprising an aqueous solution of calcium, an aqueous solution of phosphate and a solution of citrate ions at a temperature in the range from 20° C. to 40° C. for a time in the range from 30 seconds to 10 minutes; b) removing non-reacted ions from the solution of step a), thus obtaining a suspension of one or more nanoparticles of calcium phosphate (CaP-NP); c) recovering the product of one or more nanoparticles of calcium phosphate (CaP-NP) from the suspension of step b). In an advantageous embodiment, the process of the invention provides, in the mixture of step a), also an aqueous solution of one or more therapeutic/diagnostic compounds. The product of the invention may be used as a vehicle for one or more diagnostic/therapeutic compounds for the treatment of cardiovascular diseases through inhalation administration.
    • 本发明涉及用于制备包含一种或多种具有-41.0mV至-27.0mV范围内的ζ-电位的负表面电荷的磷酸钙纳米颗粒(CaP-NP)的产品的方法,包括以下步骤: a)维持pH值在7至10范围内的混合物,并且包含钙的水溶液,磷酸盐的水溶液和柠檬酸盐离子的溶液,温度范围为20℃至40℃,用于 时间在30秒到10分钟之间; b)从步骤a)的溶液中除去未反应的离子,从而获得一种或多种磷酸钙纳米颗粒(CaP-NP)的悬浮液; c)从步骤b)的悬浮液中回收一种或多种磷酸钙纳米颗粒(CaP-NP)的产物。 在一个有利的实施方案中,本发明的方法在步骤a)的混合物中还提供一种或多种治疗/诊断化合物的水溶液。 本发明的产品可以用作通过吸入给药来治疗心血管疾病的一种或多种诊断/治疗化合物的载体。