Versatile open-source fluorescence documentation system

Fluorescence has long been the best method for detecting bio-molecules at high sensitivity and with the possibility of easy data analysis and is routine for gel electrophoresis and much more. However, the systems for detecting the fluorophores remain expensive and thus inaccessible to many. Most com...

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Main Author: Leonhard Bandilla
Format: Article
Language:English
Published: Elsevier 2023-09-01
Series:HardwareX
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2468067223000573
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author Leonhard Bandilla
author_facet Leonhard Bandilla
author_sort Leonhard Bandilla
collection DOAJ
description Fluorescence has long been the best method for detecting bio-molecules at high sensitivity and with the possibility of easy data analysis and is routine for gel electrophoresis and much more. However, the systems for detecting the fluorophores remain expensive and thus inaccessible to many. Most commercial systems are often only optimized for one specific application, making reuse difficult. This paper demonstrates, characterizes and evaluates an inexpensive and versatile system for the detection of fluorophores with two wavelengths using high power LEDs. The LEDs are arranged in two banks angled downward at a tray in a way that allows for bright and uniform illumination while preventing direct reflections into the camera. The emitted light is filtered through an exchangeable filter frame and can be detected using the camera of a smartphone or similar device. By using filters both in front of the LEDs and the camera, very low background and using sufficient exposure times, very high sensitivity can be achieved. The two wavelengths of excitation light and the exchangeable filters allow for optimization for the specific fluorophore used and thus highest brightness.
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spelling doaj.art-b58329f4047f4cccbfc5eb16e34a1ff62023-09-23T05:11:50ZengElsevierHardwareX2468-06722023-09-0115e00450Versatile open-source fluorescence documentation systemLeonhard Bandilla0Pfahlweg 18A, 82346 Andechs, GermanyFluorescence has long been the best method for detecting bio-molecules at high sensitivity and with the possibility of easy data analysis and is routine for gel electrophoresis and much more. However, the systems for detecting the fluorophores remain expensive and thus inaccessible to many. Most commercial systems are often only optimized for one specific application, making reuse difficult. This paper demonstrates, characterizes and evaluates an inexpensive and versatile system for the detection of fluorophores with two wavelengths using high power LEDs. The LEDs are arranged in two banks angled downward at a tray in a way that allows for bright and uniform illumination while preventing direct reflections into the camera. The emitted light is filtered through an exchangeable filter frame and can be detected using the camera of a smartphone or similar device. By using filters both in front of the LEDs and the camera, very low background and using sufficient exposure times, very high sensitivity can be achieved. The two wavelengths of excitation light and the exchangeable filters allow for optimization for the specific fluorophore used and thus highest brightness.http://www.sciencedirect.com/science/article/pii/S2468067223000573Fluorescence imagingGel electrophoresisOpen hardwareMacroscopic imaging
spellingShingle Leonhard Bandilla
Versatile open-source fluorescence documentation system
HardwareX
Fluorescence imaging
Gel electrophoresis
Open hardware
Macroscopic imaging
title Versatile open-source fluorescence documentation system
title_full Versatile open-source fluorescence documentation system
title_fullStr Versatile open-source fluorescence documentation system
title_full_unstemmed Versatile open-source fluorescence documentation system
title_short Versatile open-source fluorescence documentation system
title_sort versatile open source fluorescence documentation system
topic Fluorescence imaging
Gel electrophoresis
Open hardware
Macroscopic imaging
url http://www.sciencedirect.com/science/article/pii/S2468067223000573
work_keys_str_mv AT leonhardbandilla versatileopensourcefluorescencedocumentationsystem