Difference between revisions of "Fluorescence Optical Detector Board"

From Hackteria Wiki
Jump to: navigation, search
Line 12: Line 12:
 
File:IMG_20200818_191434.jpg
 
File:IMG_20200818_191434.jpg
 
</gallery>
 
</gallery>
 +
 +
== Filters ==
 +
The optical system for each of the two detector lines, is composed of 3 colour filters, 2 glass lens arrays, one plastic foil lens and 3 coated mirrors.
 +
 +
The 3 colour filters are:
 +
Filter blue (excitation): 450 - 480 nm
 +
Filter green (emission) : 510 - 550 nm
 +
Filter red (emission) : 600 + nm
 +
 +
<gallery>
 +
File:IlluminaFilter450_480.png
 +
File:IlluminaFilter510_550.png
 +
File:IlluminaFilter600+.png
 +
</gallery>
 +
  
 
== Luminex ==
 
== Luminex ==

Revision as of 20:48, 10 September 2020

Learning from reverse engineering the Illumina Optical Detector Board extracted from a NeoPrep system (discontinued).

IMG 20200818 191434.jpg IMG 20200814 140900.jpg

Filters

The optical system for each of the two detector lines, is composed of 3 colour filters, 2 glass lens arrays, one plastic foil lens and 3 coated mirrors.

The 3 colour filters are: Filter blue (excitation): 450 - 480 nm Filter green (emission) : 510 - 550 nm Filter red (emission) : 600 + nm


Luminex

Testing the sensor with "R&D Systems ® Luminex ® Bead-Based Assays for Multiplexing" kits.

IMG 20200909 222850.jpg
There are two light sources used to collect data from samples. The red light source (laser for Luminex® 100/200™ and LED for MAGPIX®) excites the internal dyes in the microspheres so that they can be classified on the bead map. The green light source excites any reporter bound to the surface of the beads (PE-Streptavidin).

In Luminex applications, SA-PE is excited by the 532 nm green laser or 520 nm green LED.
Its emission peak exists at 575 ± 10 nm (orange/yellow).

Systems with two LEDs:
(511 nm) green
(621 nm) red

PE-Streptavidin:
Excitation: 488 nm blue (azure) (broad excitation, one peak 488 nm, one at 575 nm)
Emission: 575 nm (yellow)

Beads:
Excitation 621 nm red ?
Emission? two dyes for fluorescence? Infrared?




Links:

https://www.biolegend.com/en-us/products/pe-streptavidin-1475