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              您的位置:易推廣 > 化工原料 > 化學試劑 > 分析試劑 > 武漢艾美捷科技有限公司 > 產品展示 > 生物試劑 > 中英文介紹丨艾美捷Q-dextran(Q-葡聚糖)解決方案

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              中英文介紹丨艾美捷Q-dextran(Q-葡聚糖)解決方案

              點擊次數:0發布時間:2023/4/21 16:20:15

              中英文介紹丨艾美捷Q-dextran(Q-葡聚糖)解決方案

              更新日期:2023/4/21 16:20:15

              所 在 地:中國大陸

              產品型號:

              簡單介紹:Q-dextran(Q-葡聚糖)#QD4、#QD10、#QD20等是葡聚糖的聚陽離子衍生物。這些衍生物與DEAE-葡聚糖的不同之處在于它們僅含有季胺基團。

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              詳細內容

               Q-dextran is a polycationic derivative of dextran. These derivatives are distinct from DEAE-dextrans in that they only contain quaternary amine groups. Unlike DEAE-dextrans, Q-dextrans will be charged over a wide range of pH (pH 4-10). Q-dextrans will also have a much stronger net charge than corresponding DEAE-dextrans. All batches are checked for molecular weight, degree of substitution and loss on drying. TdB Labs produce Q-dextran from 4 kDa to 150 kDa. Q-dextrans are supplied as a white powder.

               

              Structure

              Q-dextrans are synthesised by reacting dextran fractions with 2,3-epoxypropyltrimethylammonium chloride. The nitrogen content is approximately 2% which corresponds to one quaternary ammonium group for every four glucose units.

               

              Storage and stability

              Q-dextran is stable for more than 6 years when stored dry in well-sealed containers at ambient temperature.

               

              Solubility

              Q-dextran dissolves readily in water.

               

              Application

              Polycationic products exhibit a wide variety of effects in cellular systems and are of interest as adjuvants in vaccines. Q-dextran has a much stronger net charge than corresponding DEAE-dextrans and will thus give enhanced responses in systems where this effect is important.

               

              艾美捷Q-dextran(Q-葡聚糖)#QD4、#QD10、#QD20等是葡聚糖的聚陽離子衍生物。這些衍生物與DEAE-葡聚糖的不同之處在于它們僅含有季胺基團。與DEAE-葡聚糖不同,Q-葡聚糖將在很寬的pH范圍內(pH 4-10)充電。Q-葡聚糖的凈電荷也將比相應的DEAE-葡聚糖強得多。檢查所有批次的分子量、取代程度和干燥失重。TdB實驗室生產4 kDa至150 kDa的Q-葡聚糖。Q-葡聚糖以白色粉末形式提供。

               

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              Q-dextran(Q-葡聚糖)為白色粗粉,易溶于水。氮含量約為 2%(通過元素分析),這對應于每四個葡萄糖單元大約一個季銨基團。含氮量為1.5 ~ 2.5%。與DEAE-葡聚糖不同,Q-葡聚糖將在寬pH范圍內(pH 4-10)帶電。它們還具有強得多的凈電荷,因此在這種效應很重要的系統中給予增強的響應。聚陽離子產品在細胞系統中表現出廣泛的作用,并且作為疫苗中的佐劑是令人感興趣的。

               

              Q-dextran(Q-葡聚糖)應用

              聚陽離子產品在細胞系統中表現出多種作用,并作為疫苗中的佐劑而備受關注。Q-dextran(Q-葡聚糖)比相應的DEAE-葡聚糖具有更強的凈電荷,因此在這種效應很重要的系統中將提供增強的響應。

               

              Q-dextran(Q-葡聚糖)相關研究:

              CM-葡聚糖

              葡聚糖

              賴氨酸葡聚糖

              苯基葡聚糖

              聚蔗糖

              透明質酸

               

              來源:https://www.amyjet.com/brand/blue-dextran.shtml

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