生物芯片 蛋白质芯片NEXTERION® HiSens Slides广州芯奥光电科技有限公司

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产品名称: 生物芯片 蛋白质芯片NEXTERION® HiSens Slides
英文名称: NEXTERION® Reflective optical HiSens Slides
产品型号: 蛋白质芯片004
产品规格: 75.6*25.0mm
产品产地: 德国
品牌商标: SCHOTT NEXTERION®
价    格: 150元
更新时间: 2019/3/19 9:57:28
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Reflective optical coating 反射光学镀膜


NEXTERION® HiSens Slides

 

The majority of microarray users prefer to use fluorescent dyes as labels in their experiments, as these dyes typically offer high sensitivity and enable the detection of two or more different dyes simultaneously. Unfortunately, microarray scanners are not able to operate at their maximum efficiency, as the detectors do not acquire all the total emitted fluorescence.
There are a number of factors that contribute to the inefficient signal capture:
  • Only a proportion of the total excitation light is absorbed by the micro array spots, with most passing through the glass slide.
  • On standard non-reflective slides, there is weak, but “destructive” interference of the excitation light waves, leading to a lower fluorescent emission.
  • The light emitted by the fluorescent dyes attached to the target molecule is undirected and lost through the back of the transparent glass.
To address these problems, SCHOTT has utilized its extensive optical glass coating expertise to develop the next generation of microarray slides – NEXTERION® HiSens (HighSensitivity).
 

Overview

Type of coatingOrdering information
NEXTERION®productBarcode optionItem numberSlides per pack
Reflective optical coating available with most of NEXTERION® functional coatingsHiSens uncoatedNone114151825
Label114151925
HiSens AStarNone117804525
Label117804625
HiSens A+None113967325
Label114151525
HiSens ALNone113982725
Label114151425
HiSens ENone112581325
Label113733225
HiSens HNone114151725
Label113982925
HiSens PNone117805125
Label117805225
Key product features
• Significantly improved signal to background ratios for identifying low-expressor genes or low-abundant proteins
• Easy implementation with standard slide protocols
• Compatible with all common microarray equipment
• Reduced target concentrations
• Reduced reagents and dye costs
• Preservation of Cy3/5™ ratios – comparable to data from conventional slides
• Chemically stable reflective coating

Immobilization chemistry

NEXTERION® HiSens Slides are available with most of the NEXTERION® functional coatings.
Suitable probe types
The functional coating on NEXTERION® HiSens Slides is identical to the respective coating on NEXTERION® Slides. Please refer to the table in the section “General information coated slides” in order to find the appropriate coating chemistry for your specific application.
 
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Product details

The NEXTERION® HiSens product is an innovative microarray slide based on an ultraflat, high quality borosilicate glass slide coated with reflective dielectric layers (US patent No. 7939339 and European patent No. EP1591773). The reflective layers on NEXTERION®HiSens significantly enhance sensitivity and signal response. The characteristics of the reflective layers have been optimized for the fluorescent wavelengths most commonly used in microarray experiments, and will simultaneously improve the performance in both the Cy3™ and Cy5™ channels. The slide is produced according to industry standard slide dimensions and is available with SCHOTT’s standard high quality functional coatings for DNA and protein microarraying. This means that the NEXTERION® HiSens Slide is fully compatible with all microarray printing technologies and most slide processing protocols, allowing customers a smooth transition from industry-standard transparent microarray slides.

The NEXTERION® HiSens coating is able to enhance signal amplification by exploiting several optical effects:
  • Fluorescence enhancement and reflection of excitation light
    On a standard glass microarray slide, the fluorescently labelled spots absorb only some of the excitation light. By placing a dielectric coating beneath the spots, this “lost” light is reflected back onto the spots. In addition, the multiple layers of the HiSens coating have been specifically designed so that the incoming and reflected excitation light waves overlap and interfere with each other. The interference is constructive at the slide surface, enhancing the excitation by a theoretical factor of up to 6.3 times.

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  • Reflection of the emission light.
  • The fluorescence emission in the Cy3™ and Cy5™ channels from the labelled spots is redirected towards the detector rather than being lost by passing through the glass or by scattering. This effectively doubles the detected fluorescence signal.

 

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Taken together, these effects can theoretically enhance the fluorescence signal by up to 12.6 times when compared to standard transparent microarray slides.

Increased sensitivity


Significant increases in fluorescent signal intensities and signal-to-background ratios have been demonstrated with the NEXTERION® HiSens E and A+ products, the first two slide surfaces launched by SCHOTT in the HiSens range in 2006 (all slide surfaces are now available). The functional coatings are identical to the standard NEXTERION® slides and were processed with standard slide processing protocols. The results clearly exhibit the same impressive spot size and morphology that users typically associate with NEXTERION® Slide E and Slide A+, but the signal intensity is significantly enhanced thanks to the HiSens coating.

 

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Identical oligonucleotide probes were printed on NEXTERION® HiSens A+ and the standard NEXTERION® Slide A+. The slides were hybridized and scanned on an Axon 4000B scanner with identical settings. Images of the NEXTERION® HiSens reflective coating are compared to standard Slide A+. The NEXTERION® HiSens A+ data was normalized against the standard NEXTERION® Slide A+. An 8 to 10 fold increase in signal-to-background ratios was obtained with the NEXTERION®HiSens reflective coating compared to the standard NEXTERION® Slide A+.

 

 

Improved signal response

NEXTERION® HiSens is the ultimate microarray slide for microarray applications where the target material is at a low concentration or cannot be reliably amplified, for example with mRNAs or low abundant proteins. The NEXTERION® HiSens coating may be used to produce reproducible signals at a much lower target concentration than with conventional slides.
The graph shows that for a DNA microarray application, between two and ten fold less target was required to produce the same signal intensity with NEXTERION® HiSens as with a conventional aminosilane microarray slide, resulting in potentially significant cost savings for users.

Preservation of dye ratios

The reflective layers in the NEXTERION® HiSens coating have been designed to enhance the performance of both the Cy3™ and Cy5™ channels equally. The Cy3™ to Cy5™ ratios are preserved, allowing use of standard data normalization methods and direct comparison with data previously produced on conventional slides.

生物在线声明:以上所展示的信息由企业自行提供,内容的真实性、准确性和合法性由发布企业负责。生物在线对此不承担任何保证责任。

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