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您应该根据自己实验室所需的分析复杂程度以及自身是需要透射(彩色)相机成像或荧光(单色)相机成像来选择。在常规/基础分析方面,我们提供用于样品透射光成像(代表性的用于细胞培养仪器)的EVOS™ XL Core成像系统,或者用于三色荧光成像的FLoid™ 细胞成像工作站。EVOS™ XL 成像系统与EVOS™ XL Core成像系统不同之处在于其配有一个较大的监视器,一个五物镜转轮(EVOS™ XL Core仪器只有4物镜转轮),能联网,能完成细胞计数。
如果您需要更多荧光波长的选择,或者细胞计数,延时成像功能,可以考虑EVOS™ FL 成像系统或者EVOS™ FL Auto成像系统。EVOS™ FL Auto成像系统是功能最丰富的产品,具有自动成像和更多特色功能。其拥有彩色和单色相机的选择,甚至可以与我们的EVOS™台式培养室系统配合使用。
可以,Countess™ II FL仪器与EVOS™成像系统使用同样的光立方。Countess™ II仪器不能使用光立方。
所有的EVOS™成像系统都是倒置显微镜。对CC物镜来说,盖玻片必须朝下,朝向物镜,因为镜头有一个仅适用于薄玻璃盖玻片或塑料盖玻片的短工作距离。LWD物镜设计用于观察微孔板、皮氏培养皿或者细胞培养瓶底部;这些物镜镜头的长工作距离适应于较厚的材料,诸如多种容器的塑料底。
FLoid™ 细胞成像工作站是一个简单、易用的透射光及三色荧光显微镜。蓝色、绿色和可见红色(Texas Red™染料)三种荧光色为固定设置,不可更换为其他滤片组。放大倍数固定设置为20x的物镜;该物镜不可移除或更换。
而EVOS™ FL成像系统是易于使用的透射光及荧光显微镜,允许用户通过物镜转轮和光立方托盘选择多种放大倍数和荧光检测选项。EVOS™ FL 成像系统允许使用23种不同的光立方和18种不同的物镜(从2x到100x)。
GFP光立方(Ex = 470/22;Em = 510/42)以470 nm为激发中心,前后各延伸11 nm,总的激发范围从459到481 nm。其发射以510 nm为中心,前后各延伸21 nm,总的发射带宽范围从489到531 nm。
EVOS™ XL 成像系统,EVOS™ FL和EVOS™ FL Auto成像系统能够用于细胞计数。The EVOS XL、EVOS FL和EVOS FL彩色成像系统提供手动细胞计数工具,您可以在成像中标记最多6种标签。
基本的差别体现在激发通道数量(5比7),明场下的成像能力、视野、共焦点和物镜转轮档位数上。CellInsight™ CX5系统是最基本的HCS系统,具有5个通道,可在明场和宽视野下成像,只有1个物镜转轮档位。CellInsight™ CX7系统和ArrayScan™系统具有7个发光通道,可在明场下成像,视野广,共焦点,具有3个(CX7)或4个(ArrayScan™系统)物镜转轮档位。ArrayScan™系统还具有活细胞成像的附加选择。更多信息,请点击此处。
如遇任何有关CellInsight™系统和ArrayScan™系统的问题,请联系仪器客户服务部。可通过instrumentservices@lifetech.com联系他们。
Some cell types accumulate phenol red, and this can pose a problem in the use of many fluorescent probes.Phenol red can quench visible-wavelength dyes and, although phenol red is non-fluorescent, various impurities may be fluorescent.We have many phenol red-free media to choose from.Our Live Cell Imaging Solution (HEPES-based) and our FluoroBrite™ DMEM have been optimized to be phenol red-free as well as to be non-autofluorescent.
Most media contain phenol red, which can quench fluorescent dyes in the visible wavelengths.Most media also contain autofluorescent components, such as riboflavin, which can reduce signal-to-background.We offer FluoroBrite™ DMEM and HEPES-based Live Cell Imaging Solution, which have been optimized for fluorescent imaging.We also offer a number of media without phenol red.But if none of these are reasonable options for your experiment, then we also offer BackDrop™ Background Suppressor ReadyProbes™ Reagent, which can be added to quench media autofluorescence.
As dyes are illuminated for imaging, they will fade, or “photobleach”, leading to unwanted dimming and lower detection efficiency over time.An antifade mounting medium can greatly reduce photobleaching.If you wish to label live cells, use of ProLong™ Live Antifade Reagent is helpful.If you wish to mount fixed cells after labeling, and then image immediately and then discard, SlowFade™ Diamond Antifade Mountant stays liquid but has good refractive index.If you wish to mount your sample and then archive the slides, ProLong™ Diamond Antifade Mountant will harden to a better refractive index and allow for archiving of the sample for up to several weeks, or even months.Unlike other antifade mounting media, these work well with fluorescent proteins for immediate viewing (archiving fluorescent proteins is not possible), and they are packaged with or without DAPI.More information on these can be found here.
仅供研究使用。不可用于诊断操作。