產(chǎn)品名稱：葡聚糖-氨基；氨基-葡聚糖

英文名稱：Dextran-NH2;Dextran-Amine

產(chǎn)品規(guī)格：500mg、1g(根據(jù)要求可定制）

產(chǎn)品描述：

外觀：固體粉末

Dextran分子量：2k/4k/10k/20k/25k40k/50k/70k/100k/150k/200k

穩(wěn)定性：4℃以下低溫干燥12個(gè)月

品牌：廣州為華生物

產(chǎn)地：廣州

葡聚糖-氨基外觀呈白色絮狀，不同的分子量也會(huì)影響葡聚糖的外觀，氨基取代度為20%：例如采用20000分子量的葡聚糖，對(duì)其進(jìn)行氨基化修飾，取代度為20%，即1 mol本品含117個(gè)葡萄糖單元，其中有23個(gè)葡萄糖單元被氨基化。Dextran葡聚糖（右旋糖酐Dextran）,是一類具支鏈葡萄糖高聚物，他不帶電荷，呈電中性，易溶于水，葡聚糖跟PEG一樣具有良好的生物相容性，毒性較低適用于動(dòng)物體內(nèi)，葡聚糖還是一種生物可降解高分子聚合物，它可降解為低分子的糖。

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葡聚糖可以連接不同的活化基團(tuán)如：NH2/MAL/COOH等，還可以提供一些熒光標(biāo)記的葡聚糖，如：FITC/Rhodamine等。

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氨基葡聚糖(glycosaminoglycan) 俗稱黏多糖(mucopolysacharide )。它是含氨多糖，由重復(fù)的二糖單位聚合而成不分支的長(zhǎng)鏈，二糖單元中，有一個(gè)糖殘基必定是氨基己糖，即N-乙酰葡糖胺或N -乙酰半乳糖胺，故名氨基葡聚糖。

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The appearance of dextran amino group is white flocculent, and different molecular weights will also affect the appearance of dextran. The degree of amino substitution is 20%. For example, dextran with 20000 molecular weight is used for amino modification, and the degree of substitution is 20%. That is, 1 mol of this product contains 117 glucose units, of which 23 glucose units are amino. Dextran dextran (dextran dextran) is a kind of high polymer with branched chain glucose. It is non charged, electrically neutral and easily soluble in water. Dextran has good biocompatibility with PEG and low toxicity. It is suitable for animals. Dextran is also a biodegradable high molecular polymer, which can be degraded into low molecular sugar.

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