Fluorescent Brightener 28 (Calcofluor White M2R) 荧光增白剂28


描述

Fluorescent Brightener 28 荧光增白剂28

产品标签

Fluorescent Brightener 28 荧光增白剂28;Calcofluor White M2R;Fungi 真菌;Chitin 几丁质;CAS NO. 4404-43-7;

 

产品信息

产品名称 产品编号           CAS NO.        规格           价格(元) 
Fluorescent Brightener 28 荧光增白剂28     MS4040-1G 4404-43-7 1g 578
Fluorescent Brightener 28 荧光增白剂28 MS4040-5G 4404-43-7 5g 2318

产品描述

荧光增白剂28(Fluorescent Brightener 28),也称为Calcofluor White M2R,常用作真菌染色和细胞活力染色。该染料的用途广泛,包括:1)作为荧光增白剂,工业上用在纤维素和锦纶织物、纸张,和去污剂,肥皂;2)鉴定和研究几丁质的结构和生物合成。几丁质是自然界中发现第二丰富的多糖,来源于淡水海绵Spongilla lacustris。当与几丁质结合后,荧光增白剂28的荧光得以加强,可用来阐述骨架结构中几丁质的特殊位置;3)用来染色真菌细胞壁;4)用来染色白色念珠菌(Candida albicans)生物膜。

本品以粉末形式提供,CAS NO.4404-43-7,典型工作浓度为0.05 – 0.20%。

作用机制

荧光增白剂28(Fluorescent Brightener 28),同义名Calcofluor White M2R,非特异性结合含β-1,3-连接或β-1,4-连接的多糖,比如几丁质(chitin),β-葡聚糖和纤维素,因此能够用来快速检测细胞壁含此类成分的酵母菌、真菌和寄生生物等。其最大的吸收波长为365nm(UV,紫外激发),最大发射波长为450nm。

产品应用(来自文献):

1)Gerphagnon M et al. A Double Staining Method Using SYTOX Green and Calcofluor White for Studying Fungal Parasites of Phytoplankton. Appl Environ Microbiol. 2013 Jul;79(13):3943-51. PMID: 23603679 [CFW was used at a 2.5% (vol/vol) final concentration,zoosporic content of sporangia,Fungi]

2)Monheit JG et al. Calcofluor white detection of fungi in cytopathology. Am J Clin Pathol. 1986 Feb;85(2):222-5. [CFW was used at a 0.1% aqueous solution,Fungi in cytology specimens]

3)Domozych D et al. Imaging the Dynamics of Cell Wall Polymer Deposition in the Unicellular Model Plant, Penium margaritaceum. Methods Mol Biol. 2017; 1563:91-105. PMID: 28324604 [Unicellular Model Plant, Penium margaritaceum]

4)Hervé C et al. Monoclonal Antibodies, Carbohydrate-Binding Modules, and the Detection of Polysaccharides in Plant Cell Walls. Methods Mol Biol. 2011; 715:103-13. PMID: 21222079 [0.25% (w/v) Calcofluor White was used, Plant Cell]

5)Demarco D et al. Histochemical Analysis of Plant Secretory Structures.Methods Mol Biol. 2017;1560:313-330. [Calcofluor white solution: dissolve 0.01 g calcofluor white MR2 in 100 mL of distilled water. Store at 4 °C. Plant Cell]

6)Arcones I et al. Monitoring Chitin Deposition During Septum Assembly in Budding Yeast.Methods Mol Biol. 2016;1369:59-72. PMID: 26519305

7)Lee KJ et al. Resin Embedding, Sectioning, and Immunocytochemical Analyses of Plant Cell Walls in Hard Tissues. Methods Mol Biol. 2014; 1080:41-52. PMID: 24132417 [ Calcofluor White: 0.25 % (w/v) in PBS]

8)Green LC et al. Discrimination between Viable and Dead Encephalitozoon cuniculi (Microsporidian) Spores by Dual Staining with Sytox Green and Calcofluor White M2R. J Clin Microbiol. 2000 Oct;38(10):3811-4. PMID: 11015407 [The slides were allowed to dry, quickly fixed in methanol, stained with 5 mg of Calcofluor White M2R/ml of H2O for 5 min, rinsed in H2O, and allowed to dry. Encephalitozoon cuniculi spores]

9)Stagoj MN et al. Microtiter plate assay of yeast cell number using the fluorescent dye Calcofluor White M2R. Biotechniques. 2004 Mar;36(3):380-2. PMID: 15038150 [Calcofluor White M2R stock solution was prepared by dissolving 48 mg solid dye in 10 mL water and filter sterilized. Stock solution can be stored at -20°C for up to 6 months. Calcofluor staining solution in buffer A (25 μM) was made fresh daily and maintained at room temperature in the dark. Cultivate yeast in the microtiter plate.]

 

产品特性

1)CAS NO:4404-43-7

2)同义名:Calcofluor White M2R卡尔科弗卢尔白M2R;Calcofluor M2R;Tinopal UNPA-GX;

3)分子式:C40H44N12O10S2

4)分子量:916.98g/mol

5)外观:黄色至米黄色粉末

6)Ex/Em:365/435nm

7)溶解性:溶于水(1mg/ml),无水乙醇(2mg/ml),DMSO(50mg/ml),微溶于甲醇

8)化学结构式:

 

保存与运输方法

保存:室温干燥保存,3年有效。

运输:室温运输。

常见问题(FAQs)

一、如何配制储存液?

Calcofluor White M2R能溶于DMSO(50mg/ml),也能溶于水(1mg/ml),但溶于水可能需借助50% NaOH或KOH来促进完全溶解。

参考方法:称取100mg粉末加入90ml去离子水(蒸馏水),边搅拌边逐滴加入20%(w/v) KOH,直至溶液变得透明。然后用水定容到100ml即得到1mg/ml储存液,0.22um滤膜过滤除菌(可选),按照单次用量分装,-20℃分装冻存。工作液浓度是储存液的10%(v/v)。具体的储存液配制浓度和溶剂请根据实际实验需求来调整。

注意事项

为了您的安全和健康,请穿实验服并戴一次性手套操作。

 

相关产品

货号                   名称                                                             规格             价格(元)  
MS4040-1G Fluorescent Brightener 28 荧光增白剂28 1g 578
MS4007-5G Evans Blue 伊文思蓝(埃文斯蓝) 5g 198
MM1011-100ML Calcofluor White Stain 卡尔科弗卢尔荧光增白剂 100ml 575 

 

Calcofluor White Stain 卡尔科弗卢尔荧光增白剂染液 一种用于快速检测酵母、真菌和寄生生物的荧光染料

卡尔科弗卢尔荧光增白剂(Calcofluor White Stain)一种用于快速检测酵母、真菌和寄生生物的荧光染料。

作用机制(阐述):

卡尔科弗卢尔荧光增白剂(Calcofluor White Stain)是一种与真菌和其他生物体细胞壁中的纤维素和壳多糖结合的非特异性荧光染料,卡尔科弗卢尔荧光增白剂染色是一种快速检测方法,可检测许多酵母菌和病原性真菌比如微孢子虫(Microsporidium)、棘阿米巴(Acanthamoeba)、肺囊虫(Pneumocystis)、纳氏虫(Naegleria)和阿米巴(Balamuthia)物种。

伊文斯兰(Evans blue)在该染料中用作复染剂,当使用蓝色光激发(并非UV)检测可降低组织和血细胞内的背景荧光信号。300-440nm的光谱范围(Emax=433nm0.1M磷酸盐pH 7.0;纤维素)可用作发射光谱,激发波长约在355nm。

 产品组分:

卡尔科弗卢尔白M2R(Calcofluor White M2R ) 1 g/L

伊文斯兰(Evans blue)  0.5 g/L

染色步骤:

  1. 将待检样本置于一干净载玻片上;
  2. 滴一滴卡尔科弗卢尔荧光增白剂(Calcofluor White Stain)和一滴10% 氢氧化钾;

  3. 将盖玻片置于样本上,并静置染色1min;

  4. 使用x100 to x400放大倍数紫外光下观察。

染色结果(阐述):

真菌或寄生生物呈亮绿到蓝色荧光,而其他材料呈红-橙色荧光。若染色组织样本会有非特异性反应。对于这些样本可能会看到黄绿色背景荧光,但真菌和寄生结构荧光强度更明亮。

Fungal or parasitic organisms appear fluorescent bright green to blue, while other material is reddish-orange fluorescent. Non-specific reactions may occur when tissues samples are used. May a yellowish-green background. fluorescence is observed with such specimens but fungal and parasitic structures appears with much more intense. Attention cotton fibers will fluoresce strongly and must therefore be differentiated from fungal hyphae. As well amebic cysts are fluorescent but trophozites will not stain or fluoresce, Background fluorescence can be diminished by examining under blue light or by using different filter combinations (emission and excitation filters). One drop of 10% potassium hydroxide solution can be added for better visualization of fungal elements.

订购信息:即用型的染料,含Calcofluor White M2R和Evans blue,操作极其简单。进口原料,品质保证,现货销售。

 名称  货号  规格  
     Calcofluor White Stain卡尔科弗卢尔荧 光增白剂  MM1011-100ML   100ml  

另提供荧光增白剂 Calcofluor White M2R(Fluorescent Brightener 28,CAS NO. 4404-43-7 ) 578/1g,冻干粉形式,更加经济实惠,欢迎来电咨询。

注意事项

所有产品仅用于科研实验;

为了您的安全和健康,请穿实验服并戴一次性手套操作。 

Fluorescent Brightener 28 (Calcofluor White M2R) 荧光增白剂28


描述

Fluorescent Brightener 28 荧光增白剂28

产品标签

Fluorescent Brightener 28 荧光增白剂28;Calcofluor White M2R;Fungi 真菌;Chitin 几丁质;CAS NO. 4404-43-7;

 

产品信息

产品名称 产品编号           CAS NO.        规格           价格(元) 
Fluorescent Brightener 28 荧光增白剂28     MS4040-1G 4404-43-7 1g 578
Fluorescent Brightener 28 荧光增白剂28 MS4040-5G 4404-43-7 5g 2318

产品描述

荧光增白剂28(Fluorescent Brightener 28),也称为Calcofluor White M2R,常用作真菌染色和细胞活力染色。该染料的用途广泛,包括:1)作为荧光增白剂,工业上用在纤维素和锦纶织物、纸张,和去污剂,肥皂;2)鉴定和研究几丁质的结构和生物合成。几丁质是自然界中发现第二丰富的多糖,来源于淡水海绵Spongilla lacustris。当与几丁质结合后,荧光增白剂28的荧光得以加强,可用来阐述骨架结构中几丁质的特殊位置;3)用来染色真菌细胞壁;4)用来染色白色念珠菌(Candida albicans)生物膜。

本品以粉末形式提供,CAS NO.4404-43-7,典型工作浓度为0.05 – 0.20%。

作用机制

荧光增白剂28(Fluorescent Brightener 28),同义名Calcofluor White M2R,非特异性结合含β-1,3-连接或β-1,4-连接的多糖,比如几丁质(chitin),β-葡聚糖和纤维素,因此能够用来快速检测细胞壁含此类成分的酵母菌、真菌和寄生生物等。其最大的吸收波长为365nm(UV,紫外激发),最大发射波长为450nm。

产品应用(来自文献):

1)Gerphagnon M et al. A Double Staining Method Using SYTOX Green and Calcofluor White for Studying Fungal Parasites of Phytoplankton. Appl Environ Microbiol. 2013 Jul;79(13):3943-51. PMID: 23603679 [CFW was used at a 2.5% (vol/vol) final concentration,zoosporic content of sporangia,Fungi]

2)Monheit JG et al. Calcofluor white detection of fungi in cytopathology. Am J Clin Pathol. 1986 Feb;85(2):222-5. [CFW was used at a 0.1% aqueous solution,Fungi in cytology specimens]

3)Domozych D et al. Imaging the Dynamics of Cell Wall Polymer Deposition in the Unicellular Model Plant, Penium margaritaceum. Methods Mol Biol. 2017; 1563:91-105. PMID: 28324604 [Unicellular Model Plant, Penium margaritaceum]

4)Hervé C et al. Monoclonal Antibodies, Carbohydrate-Binding Modules, and the Detection of Polysaccharides in Plant Cell Walls. Methods Mol Biol. 2011; 715:103-13. PMID: 21222079 [0.25% (w/v) Calcofluor White was used, Plant Cell]

5)Demarco D et al. Histochemical Analysis of Plant Secretory Structures.Methods Mol Biol. 2017;1560:313-330. [Calcofluor white solution: dissolve 0.01 g calcofluor white MR2 in 100 mL of distilled water. Store at 4 °C. Plant Cell]

6)Arcones I et al. Monitoring Chitin Deposition During Septum Assembly in Budding Yeast.Methods Mol Biol. 2016;1369:59-72. PMID: 26519305

7)Lee KJ et al. Resin Embedding, Sectioning, and Immunocytochemical Analyses of Plant Cell Walls in Hard Tissues. Methods Mol Biol. 2014; 1080:41-52. PMID: 24132417 [ Calcofluor White: 0.25 % (w/v) in PBS]

8)Green LC et al. Discrimination between Viable and Dead Encephalitozoon cuniculi (Microsporidian) Spores by Dual Staining with Sytox Green and Calcofluor White M2R. J Clin Microbiol. 2000 Oct;38(10):3811-4. PMID: 11015407 [The slides were allowed to dry, quickly fixed in methanol, stained with 5 mg of Calcofluor White M2R/ml of H2O for 5 min, rinsed in H2O, and allowed to dry. Encephalitozoon cuniculi spores]

9)Stagoj MN et al. Microtiter plate assay of yeast cell number using the fluorescent dye Calcofluor White M2R. Biotechniques. 2004 Mar;36(3):380-2. PMID: 15038150 [Calcofluor White M2R stock solution was prepared by dissolving 48 mg solid dye in 10 mL water and filter sterilized. Stock solution can be stored at -20°C for up to 6 months. Calcofluor staining solution in buffer A (25 μM) was made fresh daily and maintained at room temperature in the dark. Cultivate yeast in the microtiter plate.]

 

产品特性

1)CAS NO:4404-43-7

2)同义名:Calcofluor White M2R卡尔科弗卢尔白M2R;Calcofluor M2R;Tinopal UNPA-GX;

3)分子式:C40H44N12O10S2

4)分子量:916.98g/mol

5)外观:黄色至米黄色粉末

6)Ex/Em:365/435nm

7)溶解性:溶于水(1mg/ml),无水乙醇(2mg/ml),DMSO(50mg/ml),微溶于甲醇

8)化学结构式:

 

保存与运输方法

保存:室温干燥保存,3年有效。

运输:室温运输。

常见问题(FAQs)

一、如何配制储存液?

Calcofluor White M2R能溶于DMSO(50mg/ml),也能溶于水(1mg/ml),但溶于水可能需借助50% NaOH或KOH来促进完全溶解。

参考方法:称取100mg粉末加入90ml去离子水(蒸馏水),边搅拌边逐滴加入20%(w/v) KOH,直至溶液变得透明。然后用水定容到100ml即得到1mg/ml储存液,0.22um滤膜过滤除菌(可选),按照单次用量分装,-20℃分装冻存。工作液浓度是储存液的10%(v/v)。具体的储存液配制浓度和溶剂请根据实际实验需求来调整。

注意事项

为了您的安全和健康,请穿实验服并戴一次性手套操作。

 

相关产品

货号                   名称                                                             规格             价格(元)  
MS4040-1G Fluorescent Brightener 28 荧光增白剂28 1g 578
MS4007-5G Evans Blue 伊文思蓝(埃文斯蓝) 5g 198
MM1011-100ML Calcofluor White Stain 卡尔科弗卢尔荧光增白剂 100ml 575