6 ports Fluorescence Mini Cube - GCaMP and Red fluorophore
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This cube detects the fluorescence from two calcium indicators and GCaMP isosbestic point. The separation of functional and isosbestic fluorescence signals of GCaMP is possible with modulated light sources. E1 and E2 stand for excitation at the cube's schematic, IE for isosbestic excitation, F1 and F2 for respective fluorescence windows, and S for the sample port.
Compared to Fluorescence Mini Cubes with only FC connectors on all ports, the ones with integrated photodetectors provide a 100% better signal-to-noise ratio (30% signal increase and a 40% noise reduction). Moreover, in the latest generation of Mini Cubes, LEDs and LED drivers are integrated as well to reduce the number of connections and the system’s overall footprint. In his generation, it is also possible to replace the excitation filter (to adjust the isosbestic excitation from 405 nm to 410 nm for instance) and decrease the excitation power by adding attenuating filters (for low power photometry).
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Mini Cube Wavelength range 350 to 1100 nm Optical fiber compatibility - Core diameter 200 or 400 µm
- NA 0.37 to 0.57Spectral bandwidth GCaMP :
- Isosbestic Excitation 400-410 nm or 410-420 nm or 421-433 nm or 433-445 nm
- Excitation 460-490 nm
- Emission 500-540 nm
Red Fluorophore :
- Excitation 540-570 nm
- Emission 580-680 nmOptical filter attenuation > OD 5 outside band Dimensions - FMC: 101 x 59 x 26 mm
- iFMC: 108 x 92 x 50 mm
- ilFMC: 152 x 109 x 52 mmBuilt-in Detectors iFMC ilFMC Detector Sensitivity - 0.38 A/W @ 550 nm
- 0.60 A/W @ 960 nm (peak)- 0.38 A/W @ 550 nm
- 0.60 A/W @ 960 nm (peak)Amplification 3 levels : 1x, 10x, 100x 2 levels : 1x, 10x Transimpedance gain - 2.0 E09 V / A (1x)
- 2.0 E10 V / A (10x)
- 2.0 E11 V / A (100x)- 2.0 E09 V / A (1x)
- 2.0 E10 V / A (10x)Conversion gain
@ 550 nm- 0.76 V / nW (1x)
- 7.60 V / nW (10x)
- 76.0 V / nW (100x)- 0.76 V / nW (1x)
- 7.60 V / nW (10x)Saturation level
@ 550 nm- 7.2 nW (1x)
- 0.72 nW (10x)
- 72 pW (100x)- 7.2 nW (1x)
- 0.72 nW (10x)NEP < 12 fW/√Hz < 12 fW/√Hz Bandwidth - DC : 0 - 1000 Hz
- AC : 30 - 1000 Hz- DC : 0 - 1000 Hz
- AC : 30 - 1000 HzElectrical interface BNC BNC Output Voltage 0.0 to 5.5 V 0.0 to 5.5 V Output impedance 50 Ω 50 Ω Sensor type Silicon photodiode Silicon photodiode Sensor Area 1 x 1 mm 1 x 1 mm Input voltage 12 V DC (power supply included) 12 V DC (power supply included) Built-in LEDs (ilFMC Gen.3) Max Current 500 mA Emitter size 400 µm diameter - NA0.22 Max Output Power
(fibre 400 µm)LED 400-410 nm
= 60 µW (at 200 mA, CW)*LED 460-490 nm
= 100 µW (at 200 mA, CW)*LED 555-570 nm
= 100 µW (at 200 mA, CW) -
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