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Merck

FD20

Sigma-Aldrich

异硫氰酸荧光素-葡聚糖

average mol wt 20,000

别名:

FITC-右旋糖酐

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About This Item

CAS号:
MDL號碼:
分類程式碼代碼:
12352201
NACRES:
NA.25

生物源

bacterial (Leuconostoc mesenteroides)

共軛

FITC conjugate

形狀

powder

分子量

average mol wt 20,000

標籤範圍

0.001-0.020 mol FITC per mol glucose

顏色

light yellow to dark orange

溶解度

water: 25 mg/mL

儲存溫度

2-8°C

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一般說明

葡聚糖是葡萄糖酐聚合物。 由大约95%的α-D-(166)键组成。 剩余的(163)键是葡聚糖的分支。分支长度的冲突数据意味着平均分支长度小于三个葡萄糖单位。但是,其他方法表明存在大于 50 个葡萄糖单位的分支。已发现的天然葡聚糖分子量(MW)在900万至5亿范围内。MW较低的葡聚糖分支略少,MW分布范围较窄。MW大于10,000 的葡聚糖表现得似乎它们是高度支化的。 随着MW的增加,葡聚糖分子的对称性增强。 MW为2,000至10,000的葡聚糖表现出可膨胀线圈的特性。 MW低于2,000的葡聚糖更像棒状。葡聚糖的分子量通过以下一种或多种方法测定:低角度激光散射、尺寸排阻色谱法、铜络合和蒽酮试剂、比色法还原糖测定和粘度。

應用

FITC-葡聚糖在心血管、微循环、灌注、细胞单层和细胞膜通透性研究中用作荧光通量示踪化合物,可实现对血流、膜损伤、血管引流和肾脏清除等过程进行检测。小FITC-葡聚糖也可用于检测内吞作用和细胞连接通透性等过程。20kDa的荧光素-葡聚糖可用于研究细胞过程,例如内吞和渗透。 FITC-葡聚糖-20可用于研究内皮或上皮单层孔隙度、细胞层内顶端-基底外侧运动和细胞连接通透性。FITC-葡聚糖-20可用作模型化合物,以研究水凝胶和胶原微棒等结构的药物释放。
FITC-葡聚糖被广泛用于运用显微荧光法进行微循环和细胞通透性研究。 FITC-葡聚糖被用于植物细胞壁孔隙度和毛细血管通透性研究。研究表明,血浆蛋白不与FITC-葡聚糖结合。
用异硫氰酸荧光素标记的葡聚糖可用于动物的灌注研究。

包裝

无底玻璃瓶。内含物装在插入的融合锥内。

準備報告

Sigma通常以25 mg/ml或更高的浓度测试FITC葡聚糖在水中的溶解度。 溶液应避光保存。 在体内,FITC-葡聚糖稳定24小时以上。

其他說明

为了全面了解我们针对客户研究提供的各种葡聚糖产品,建议您访问我们的碳水化合物分类页面。

象形圖

Exclamation mark

訊號詞

Warning

危險聲明

危險分類

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

標靶器官

Respiratory system

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


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Markéta Gajdošová et al.
International journal of pharmaceutics, 592, 120086-120086 (2020-11-15)
The incidence of fungal infections has increased in recent decades not only in patients with predisposing and risk factors, but it has also spread up due to the widespread use of broad-spectrum antibiotics, immunosuppressants and corticosteroids. A limited number of
Dong-Xu Liu et al.
Neuroscience letters, 653, 189-194 (2017-06-04)
Sleep deprivation (SD) is a common condition associated with a variety of nervous system diseases, and has a negative impact on emotional and cognitive function. Continuous theta burst stimulation (cTBS) is known to improve cognition and emotion function in normal
Barbara Zorec et al.
International journal of pharmaceutics, 516(1-2), 204-213 (2016-11-08)
We studied fractional Er:YAG laser to enhance transdermal drug delivery of compounds possessing different molecular weights: FITC-dextrans (or FD) with average molecular weights of 4, 10 and 20kDa. Vertical glass Franz diffusion cells were used to study molecular transport through
Damia Mawad et al.
International journal of pharmaceutics, 366(1-2), 31-37 (2008-09-24)
Injectable hydrogels have potential biomedical applications ranging from tissue fillers to drug delivery vehicles. This study focussed on evaluating the structure of poly(vinyl alcohol) (PVA) hydrogels of variable solid content and high molecular weight model drug release from the networks
Iris Metzmacher et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 67(2), 349-360 (2007-04-06)
A drug delivery system, named minirod, containing insoluble non-cross-linked collagen was prepared to investigate the release of model drug compounds. To characterise the complete drug release process properly, a mathematical model was developed. Previously, a mathematical model describing water penetration

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相关内容

Dextran is a polymer of anhydroglucose. It is composed of approximately 95% alpha-D-(166) linkages. The remaining (163) linkages account for the branching of dextran.

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