| Overview | PrinterFriendlyVersion |
| Ex/Em(nm) | 501/520 |
| MW | 661.17 |
| CAS# | N/A |
| Solvent | N/A |
| Storage | F/D/L |
| Category | NucleicAcidDetection DNADetection |
| Related | LabelingCells FluorescenceImaging BiochemicalAssays |
1.PreparingtheHelixyteGreen™workingsolution:
1.1 PrepareanaqueousworkingsolutionoftheHelixyteGreen™bymakinga200-folddilutionoftheconcentratedDMSOsolutioninTE(10mMTris-HCl,1mMEDTA,pH7.5–8.0).Forexample,add50μLHelixyteGreen™to10mLTEtoprepareenoughworkingsolutiontoassay100samplesina200µLfinalvolume.Protecttheworkingsolutionfromlightbycoveringitwithfoilorplacingitinthedark.
Note1:Werecommendpreparingthissolutioninaplasticcontainerratherthanglass,asthedyemayadsorbtoglasssurfaces.
Note2:Forbestresults,thissolutionshouldbeusedwithinafewhoursofitspreparation.
2.PrepareserialdilutionsofdsDNAstandard(0to3ng/mL):
2.1 Preparea1mg/mLstocksolutionofdsDNA(suchascalfthymusDNAfromSigma)inddH2O.
2.2 Add10μLof1mg/mLdsDNAstocksolution(fromStep2.1)to998µLTEbuffertohave10μg/mLdsDNAsolution,andthenperform1:10and1:2serialdilutionstoget1000,100,50,25,12.5,6.25,3.125,and0ng/mL.
2.3 AdddsDNAstandardsandDNAcontainingtestsamplesintoa96-wellsolidblackmicroplateasdescribedinTables1and2.
Table1.LayoutofdsDNAstandardsandtestsamplesinasolidblack96-wellmicroplate*
BL | BL | TS | TS | …. | …. |
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DS1 | DS1 | …. | …. | …. | …. |
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DS2 | DS2 |
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DS3 | DS3 |
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DS4 | DS4 |
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DS5 | DS5 |
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DS6 | DS6 |
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DS7 | DS7 |
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*Note:DS=dsDNAStandards;BL=BlankControl;TS=TestSamples
Table2.Reagentcompositionforeachwell*
dsDNAStandard | BlankControl | TestSample |
Serialdilutions*(100μL) | TE:100μL | 100μL |
*Note:AddtheseriallydilutionsofdsDNAstandardsfrom0.1to1000ng/mLintowellsfromDS1toDS7induplicate.
3.RundsDNAassay:
3.1 Add100μLofdsDNAassaymixture(fromStep1.1)toeachwellofthedsDNAstandard,blankcontrol,andtestsamples(seeStep2.3)tomakethetotaldsDNAassayvolumeof200µL/well.
Note1:Fora384-wellplate,add25μLsampleand25μLofdsDNAassaymixtureperwell.
Note2:Forcurvetbasedassays,add1mLsampleand1mLofdsDNAassaymixturepercurvet.
3.2 Incubatethereactionatroomtemperaturefor5to10minutes,protectedfromlight.
3.3 MonitorthefluorescenceincreasewithafluorescencemicroplatereaderatEx/Em=490/525nm(cutoffat515nm).
3.4 Thefluorescenceinblankwells(withtheTEbufferonly)isusedasacontrol,andissubtractedfromthevaluesforthosewellswiththedsDNAreactions.TheDNAconcentrationsofthesamplesaredeterminedfromthestandardcurvegeneratedinDNAStandardCurve.
| References&Citations | PrinterFriendlyVersion |
1. PetersonEJ,KireevD,MoonAF,MidonM,JanzenWP,PingoudA,PedersenLC,SingletonSF.(2013)InhibitorsofStreptococcuspneumoniaesurfaceendonucleaseEndAdiscoveredbyhigh-throughputscreeningusingaPicoGreenfluorescenceassay.JBiomolScreen,18,247.
2. ChenY,SonnaertM,RobertsSJ,LuytenFP,SchrootenJ.(2012)ValidationofaPicoGreen-basedDNAquantificationintegratedinanRNAextractionmethodfortwo-dimensionalandthree-dimensionalcellcultures.TissueEngPartCMethods,18,444.
3. MorenoLA,CoxKL.(2010)QuantificationofdsDNAusingtheHitachiF-7000FluorescenceSpectrophotometerandPicoGreendye.JVisExp.
4. DraganAI,Casas-FinetJR,BishopES,StrouseRJ,SchenermanMA,GeddesCD.(2010)CharacterizationofPicoGreeninteractionwithdsDNAandtheoriginofitsfluorescenceenhancementuponbinding.BiophysJ,99,3010.
5. DraganAI,BishopES,Casas-FinetJR,StrouseRJ,SchenermanMA,GeddesCD.(2010)Metal-enhancedPicoGreenfluorescence:applicationtofastandultra-sensitivepg/mlDNAquantitation.JImmunolMethods,362,95.
6. ABIodunOO,GbotoshoGO,AjaiyeobaEO,HappiCT,HoferS,WittlinS,SowunmiA,BrunR,OduolaAM.(2010)ComparisonofSYBRGreenI-,PicoGreen-,and[3H]-hypoxanthine-basedassaysforinvitroantimalarialscreeningofplantsfromNigerianethnomedicine.ParasitolRes,106,933.
7. DraganAI,BishopES,Casas-FinetJR,StrouseRJ,SchenermanMA,GeddesCD.(2010)Metal-enhancedPicoGreenfluorescence:applicationfordouble-strandedDNAquantification.AnalBiochem,396,8.
8. HoldenMJ,HaynesRJ,RabbSA,SatijaN,YangK,BlasicJR,Jr.(2009)FactorsaffectingquantificationoftotalDNAbyUVspectroscopyandPicoGreenfluorescence.JAgricFoodChem,57,7221.
9. IkedaY,IwakiriS,YoshimoriT.(2009)DevelopmentandcharacterizationofanovelhostcellDNAassayusingultra-sensitivefluorescentnucleicacidstain"PicoGreen".JPharmBiomedAnal,49,997.
10. RenX,XuQH.(2009)Label-freeDNAsequencedetectionwithenhancedsensitivityandselectivityusingcationicconjugatedpolymersandPicoGreen.Langmuir,25,43.
AAT Bioquest AAT Bioquest是一家位于美国的生物公司,前身为ABD Bioquest,总部位于加利福尼亚州。专门从事光学检测技术十多年,一直致力于光谱学检测领域技术的创新和突破。其独特的光学检测技术,综合了化学、生物学和信息学等各个领域的研究,引领了比色、荧光和发光技术新一代光学探针的浪潮。AAT Bioquest在全球拥有强大的经验丰富的专业分销商网络,为从小型研究机构到《财富》500强企业的各类客户提供卓越的产品和定制服务。
美国AATBioquestInc.(前身是ABDBioquest,Inc.)是一家为从事生命科学研究、诊断研发及药物开发的科学家研发、生产和销售生物分析研究试剂和试剂盒的公司。公司致力于光谱学检测领域,包括吸收(颜色),荧光和发光技术。AATBioquest的产品帮助全世界的科学家和生物医药研究者更好的了解生物化学,免疫学,细胞生物学和分子生物学等领域。AATBioquest会不断介绍新产品,快速的丰富各个领域的产品。
1)我们提供反应荧光探针和发光探针,生物素和端粒酶能够应用于标记药物小分子和生物聚合物,如蛋白、核酸以及其他碳水化合物;2)我们研究并生产荧光和发光探针用于检测蛋白,核酸和活细胞。3)我们不断的推出新型的荧光和发光探针用于检测多种酶,特别是检测水解酶和氧化还原酶类;4)我们致力于开发用于信号转导研究的试剂;5)我们提供生理和神经探针,特别是钙离子指示剂和膜电位探针。
作为AATBioquestInc.的中国区域代理,艾美捷科技为中国客户提供光谱学检测领域,包括吸收(颜色),荧光和发光技术等全系列解决方案。我们也将一如既往更加努力为国内用户提供快捷、方便的高质量产品,同时更为您售前售后全面技术支持。
AATBioquest,Inc.(formerlyABDBioquest,Inc.)develops,manufacturesandmarketsbioanalyticalresearchreagentsandkitstoscientistsengagedinlifesciencesresearch,diagnosticR&Danddrugdiscovery.Wespecializeintheareaofphotometricdetectionsincludingabsorption(color),fluorescenceandluminescencetechnologies.TheCompany"sproductsenablescientistsandbiomedicalresearcherstobetterunderstandbiochemistry,immunology,cellBIOLOGyandmolecularbiology.AATBioquestconstantlyintroducesnewproducts,andoffersarapidlyexpandinglistofproductsthataregroupedintoseveralproductlines.
1)Ourreactivefluorescentandluminescentprobes,biotinsandtagenzymesareusedforlabelingsmalldrugmoleculesandbiopolymers,e.g,proteins,nucleicacidsandcarbohydrates;2)Wedevelopfluorescentandluminescentprobesfordetectingproteins,nucleicacidsandlivecells;3)Weconstantlyintroducenovelfluorescentandluminescentprobesfordetectingvariousenzymes,inparticular,hydrolyticandredoxenzymes;4)Wefocusondevelopingreagentsforsignaltransductionresearch;and5)Wealsoofferphysiologicalandneurologicalprobes,e.g.,calciumindicatorsandmembranepotentialprobes.
Besidesthestandardcatalogproductswealsooffercustomservicetomeetyourspecialresearchneeds.Ourcurrentservicesincludecustomsynthesisofcolorimetric,fluorescentandluminescentprobes,customdevelopmentofbiochemical,cell-basedanddiagnosticassaysandcustomscreeningofyourcompoundlibrariesagainstyourdefinedtargetsusingourvalidatedHTSassays.
ebiomall.com
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请各位大侠给予帮助!!
谢谢!!
产品主要应用:点击化学(Clickchemistry)、蛋白质组学研究中的双向荧光差异凝胶电泳(2DDIGE)和实时荧光定量PCR(RealtimePCR)。
氨基类染料是包含自由氨基的活性染料,染料可与活化羧酸衍生物和其他亲电子的试剂结合。比如:氨基与EDC-活化的羧基结合。
相关产品如下:
中文名英文名产品编号分子结构Cy7.5胺Cy7.5amineAGF1350A[img]/KindEditor_4.0.1/attached/image/20130704/20130704110804_5250.jpg[/img]Cy5胺Cy5amineAGF1332A[img]/KindEditor_4.0.1/attached/image/20130704/20130704110715_7750.jpg[/img]相似系列产品:
抗体、核酸、蛋白质等生物分子标记染料
羰基活性荧光染料
巯基反应性染料
羧酸类染料
健那绿染液是一种活体染液,实验对象必须是活细胞,健那绿可以使活细胞中的线粒体呈现蓝绿色,而细胞质接近无色。
分子生物学实验的染料主要涉及到核酸染料和蛋白质染料.核酸染料主要有EB(溴化乙锭,高致癌性),goldview,sybr green(实时定量PCR时常用染料).这些染料可以和核酸双链分子特异性结合发出强荧光而被检测到.蛋白质染料最常用的是考马斯亮蓝 R-250,硝酸银.其中硝酸银有时也用于核酸染色.
染料分为天然染料和人工染料两种。天然染料有胭脂虫红、地衣素、石蕊和苏木素等,它们多从植物体中提取得到,其成分复杂,有些至今还未搞清楚。目前主要采用人工染料,也称煤焦油染料,多从煤焦油中提取获得,是苯的衍生物。多数染料为带色的有机酸或碱类,难溶于水,而易溶于有机溶剂中。为使它们易溶于水,通常制成盐类。
染料可按其电离后染料离子所带电荷的性质,分为酸性染料、碱性染料、中性(复合)染料和单纯染料四大类。 标本干燥后即进行固定,固定的目的有三个:
1)杀死微生物,固定细胞结构。
2)保证菌体能更牢的粘附在载玻片上,防止标本被水冲洗掉。
3)改变染料对细胞的通透性,因为死的原生质比活的原生质易于染色。
而且样品中的无水硫酸钠未变色,而做标准曲线的五个和空白对照的变为蓝色了,请高手指教,多谢!
还有,是否变蓝对测定结果有影响吗?
谢了哈
欢迎你!请下次规范发贴:)
产品主要应用:点击化学(Clickchemistry)、蛋白质组学研究中的双向荧光差异凝胶电泳(2DDIGE)和实时荧光定量PCR(RealtimePCR)。
菁染料是性能优良的荧光标记染料,摩尔吸光系数在荧光染料中是最高的。N-羟基琥珀酰亚胺酯是最常用的脂肪氨基标记试剂,广泛用于蛋白质、氨基酸多肽、抗体、核酸及其他生物分子的标记和检测。通过改变次甲基链的长度,可改变其荧光发射波长,每增加一个双键,按照Huoffman规则正好红移约100nm。
菁染料Cy3和Cy5已成为基因芯片的首选荧光标记物;另外,Cy5,Cy5.5和Cy7,Cy7.5的吸收在近红外区背景非常低,是荧光强度最高、最稳定的长波长染料,特别适合于活体小动物体内成像。但由于菁染料,尤其是不对称菁染料的合成副反应多,副产物极性相近,产物的分离提纯相当困难。菁染料特别是水溶性菁染料分子极性大,分离提纯越加困难。Lumiprobe供应脂溶性和水溶性菁染料。
相关产品:
产品分子结构可替代染料编号:AGF1371A
6-ROX-N-羟基琥珀酰亚胺酯
ROXNHSester,pure6-isomer[img]/KindEditor_4.0.1/attached/image/20130704/20130704102819_7906.jpg[/img]AlexaFluor568编号:AGF1326A
Cy3-N-羟基琥珀酰亚胺酯
Cy3NHSester[img]/KindEditor_4.0.1/attached/image/20130704/20130704103024_8531.jpg[/img]AlexaFluor546NHSester
DyLight549NHSester
编号:AGF1330A
Cy3.5-N-羟基琥珀酰亚胺酯
Cy3.5NHSester[img]/KindEditor_4.0.1/attached/image/20130704/20130704103242_2437.jpg[/img]AlexaFluor594NHSester
DyLight594NHSester
编号:AGF1338A
Cy5-N-羟基琥珀酰亚胺酯
Cy5NHSester[img]/KindEditor_4.0.1/attached/image/20130704/20130704103422_4468.jpg[/img]AlexaFluor647NHSester
DyLight649NHSester
编号:AGF1345A
Cy5.5-N-羟基琥珀酰亚胺酯
Cy5.5NHSester[img]/KindEditor_4.0.1/attached/image/20130704/20130704103557_5875.jpg[/img]AlexaFluor680NHSester
DyLight680NHSester
编号:AGF1349A
Cy7-N-羟基琥珀酰亚胺酯
Cy7NHSester[img]/KindEditor_4.0.1/attached/image/20130704/20130704103713_8843.jpg[/img]编号:AGF1356A
Cy7.5-N-羟基琥珀酰亚胺酯
Cy7.5NHSester[img]/KindEditor_4.0.1/attached/image/20130704/20130704103756_5406.jpg[/img]编号:AGF1374A
磺酸基-Cy3-N-羟基琥珀酰亚胺酯
Sulfo-Cy3NHSester[img]/KindEditor_4.0.1/attached/image/20130704/20130704103830_1656.jpg[/img]AlexaFluor546
DyLight549
编号:AGF1377A
磺酸基-Cy5-N-羟基琥珀酰亚胺酯
Sulfo-Cy5NHSester[img]/KindEditor_4.0.1/attached/image/20130705/20130705095752_6656.jpg[/img]AlexaFluor647
DyLight649
编号:AGF1379A
磺酸基-Cy7-N-羟基琥珀酰亚胺酯
Sulfo-Cy7NHSester[img]/KindEditor_4.0.1/attached/image/20130704/20130704104047_6968.jpg[/img]相似系列产品:
羰基活性荧光染料
氨基类染料
巯基反应性染料
羧酸类染料
2、苏丹三 脂肪 橙红
3、苏丹四 脂肪 红
4、双缩脲 蛋白质 紫
5、龙胆紫 染色质 紫
6、碘 淀粉 蓝
7、健那绿 线粒体 绿
8、甲基绿 DNA 绿
9、吡罗红 RNA 红
10、溴麝香草酚蓝 CO2 由蓝变绿再变黄
11、重铬酸钾 酒精 酸性条件下由橙色变成灰绿
12、醋酸洋红(龙胆紫、改良苯酚品红) 染色质 红
13、台盼蓝 检验活死细胞 死细胞会被染成蓝色(不常用)

