[药] 胶体金；胶态金
The prepared SPA colloidal gold Probe was stable, reliable with much better activity.
所制得的胶体金探针稳定、可靠，有较好的生物活性。
Methods: Colloidal gold was used to determine the Ddimer concentration in plasma samples.
方法：采用胶体金方法测定35例肺癌患者化疗前后血浆d -二聚体的含量。
Solid-phase proofreading PCR and silver staining of colloidal gold were applied to detect the point mutation.
对固相校读PCR以及纳米金-银染法检测信号进行了初步摸索；
The colloidal gold-labeled method was introduced, and its application was summarized in cell and molecular biology.
介绍了胶体金标记技术，并就其在细胞和分子生物学研究方面的应用做了简单概述。
Effections of different heating methods, heating time and reducer addition during preparation of the colloidal gold were compared.
制备胶体金时，对比了不同加热方式、不同的加热时间和还原剂用量对胶体金制备的影响。
Colloidal Gold（胶体金） 是一种由纳米级金颗粒分散在液体中形成的胶体溶液，其性质和应用与其颗粒大小、形状密切相关。以下是详细解释：
基本构成
胶体金通过还原氯金酸（HAuCl₄）制备，形成直径在1-150 nm 的金颗粒分散体系，属于多相不均匀系统。
颜色随粒径变化：较小颗粒（约20 nm）呈橙红色，较大颗粒（如150 nm）呈紫红色。
稳定性
金颗粒表面带负电荷，通过静电排斥维持分散状态，形成稳定的胶体溶液。
医学检测
广泛用于试纸条（如妊娠试纸、病毒检测），金颗粒聚集时肉眼可见显色反应（如粉红色）。
生物标记与成像
作为标记物，结合抗体或核酸探针，用于免疫分析、显微镜成像等。
护肤与材料科学
胶态金因透皮吸收性，被用于护肤品中促进成分传输；在材料领域用于制备导电涂层或催化剂。
如需进一步了解具体应用案例或制备方法，可参考权威词典（如海词词典）或专业文献。
Colloidal gold refers to tiny gold particles suspended in liquid, usually water. It is commonly used in various medical applications such as cancer treatment, pregnancy tests, and HIV detection.
Colloidal gold is produced by reducing gold particles to nanoscale size and suspending them in a liquid, typically water. The resulting solution has unique optical and physical properties that make it useful in biomedical research and applications.
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