產(chǎn)品展示
中英文介紹丨艾美捷Q-dextran(Q-葡聚糖)解決方案
點(diǎn)擊次數(shù):0發(fā)布時(shí)間:2023/4/21 16:20:15
更新日期:2023/4/21 16:20:15
所 在 地:中國大陸
產(chǎn)品型號:
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詳細(xì)內(nèi)容
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(tuán)。與DEAE-葡聚糖不同,Q-葡聚糖將在很寬的pH范圍內(nèi)(pH 4-10)充電。Q-葡聚糖的凈電荷也將比相應(yīng)的DEAE-葡聚糖強(qiáng)得多。檢查所有批次的分子量、取代程度和干燥失重。TdB實(shí)驗(yàn)室生產(chǎn)4 kDa至150 kDa的Q-葡聚糖。Q-葡聚糖以白色粉末形式提供。
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(yīng)于每四個(gè)葡萄糖單元大約一個(gè)季銨基團(tuán)。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(nèi)(pH 4-10)帶電。它們還具有強(qiáng)得多的凈電荷,因此在這種效應(yīng)很重要的系統(tǒng)中給予增強(qiáng)的響應(yīng)。聚陽離子產(chǎn)品在細(xì)胞系統(tǒng)中表現(xiàn)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)的應(yīng)用:
聚陽離子產(chǎn)品在細(xì)胞系統(tǒng)中表現(xiàn)出多種作用,并作為疫苗中的佐劑而備受關(guān)注。Q-dextran(Q-葡聚糖)比相應(yīng)的DEAE-葡聚糖具有更強(qiáng)的凈電荷,因此在這種效應(yīng)很重要的系統(tǒng)中將提供增強(qiáng)的響應(yīng)。
Q-dextran(Q-葡聚糖)相關(guān)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(zhì)酸