说明 ：常用的CT造影剂为高原子序数元素，如碘（I）、金（Au）或钨（W）等。它们通过吸收X射线，显著增强CT图像的对比度，使医生可以清晰地看到体内的解剖结构和病变部位。荧光染料或荧光纳米颗粒，如有机荧光染料（如CY5.5、FITC）或量子点（QDs ...

SDPD部分：含吡啶二硫键（-S-S-），可与巯基（-SH）发生二硫键交换反应。 吡啶基团促进二硫键断裂，增强反应活性。 PEG4部分：由4个乙二醇单元组成的亲水性PEG链，提高水溶性和生物相容性。 减少免疫原性，延长分子在体内的半衰期。

Biotin-PEG-Cy3.5 Biotin-PEG-Cyanine3.5 以上内容均由YC编辑。 该试剂只用于科研实验，不能用于人体。返回搜狐，查看更多 平台声明：该文观点仅代表作者本人，搜狐号系信息发布平台，搜狐仅提供信息存储空间服务。

HIGHLIGHTS: Cygnus' common shares have qualified to trade on the OTCQB® Venture Market ("OTCQB"), a U.S. marketplace operated by OTC Markets Group Inc. (the "OTC"), Trading commences today under the ...

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Ugo Monye, Chris Jones and Danny Care cover the biggest rugby union stories of the week.

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