[藥] 膠體金；膠态金
The prepared SPA colloidal gold Probe was stable, reliable with much better activity.
所制得的膠體金探針穩定、可靠，有較好的生物活性。
Methods: Colloidal gold was used to determine the Ddimer concentration in plasma samples.
方法：采用膠體金方法測定35例肺癌患者化療前後血漿d -二聚體的含量。
Solid-phase proofreading PCR and silver staining of colloidal gold were applied to detect the point mutation.
對固相校讀PCR以及納米金-銀染法檢測信號進行了初步摸索；
The colloidal gold-labeled method was introduced, and its application was summarized in cell and molecular biology.
介紹了膠體金标記技術，并就其在細胞和分子生物學研究方面的應用做了簡單概述。
Effections of different heating methods, heating time and reducer addition during preparation of the colloidal gold were compared.
制備膠體金時，對比了不同加熱方式、不同的加熱時間和還原劑用量對膠體金制備的影響。
Colloidal Gold（膠體金） 是一種由納米級金顆粒分散在液體中形成的膠體溶液，其性質和應用與其顆粒大小、形狀密切相關。以下是詳細解釋：
基本構成
膠體金通過還原氯金酸（HAuCl₄）制備，形成直徑在1-150 nm 的金顆粒分散體系，屬于多相不均勻系統。
顔色隨粒徑變化：較小顆粒（約20 nm）呈橙紅色，較大顆粒（如150 nm）呈紫紅色。
穩定性
金顆粒表面帶負電荷，通過靜電排斥維持分散狀态，形成穩定的膠體溶液。
醫學檢測
廣泛用于試紙條（如妊娠試紙、病毒檢測），金顆粒聚集時肉眼可見顯色反應（如粉紅色）。
生物标記與成像
作為标記物，結合抗體或核酸探針，用于免疫分析、顯微鏡成像等。
護膚與材料科學
膠态金因透皮吸收性，被用于護膚品中促進成分傳輸；在材料領域用于制備導電塗層或催化劑。
如需進一步了解具體應用案例或制備方法，可參考權威詞典（如海詞詞典）或專業文獻。
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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