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RWD MOIS Series

Small Animal in vivo Imaging System RWD MOIS Series

The RWD MOIS Series (HTP / HT / HTX) is a sophisticated in vivo imaging system with high sensitivity, designed for small animals research. It combines bioluminescence, fluorescence, and spectral imaging capabilities for precise low-light detection.

The RWD MOIS Series (HTP / HT / HTX) provides high-performance in vivo imaging tailored for small animal research across various fields, including oncology, immunology, pharmacology, and stem cell studies. Featuring a back-illuminated CCD with a quantum efficiency of at least 90% and a cooling capability reaching -90°C, the MOIS system offers remarkable sensitivity for low-light scenarios. The fluorescence module is equipped with up to 26 narrowband filters and utilizes advanced spectral unmixing algorithms, enhancing accuracy and quantification in multi-color imaging. 

Accommodating a variety of imaging areas ranging from 2.5 × 2.5 cm to 25 × 25 cm, the system is versatile enough to meet both localized and whole-body imaging requirements. Integrated correction technologies—such as bias, flat-field, background suppression, and cosmic ray elimination—provide consistent and reproducible outcomes, making it ideal for high-standard workflows in in vivo research.

Small animals imaging with Mois HT

Advantages of RWD MOIS Series

Ultra-High Sensitivity

The CCD cooling can reach temperatures as low as -90°C, coupled with a quantum efficiency of ≥90%, which facilitates outstanding low-light performance for both bioluminescence and fluorescence imaging.

Broad Spectral Compatibility

The system supports excitation wavelengths ranging from 400 to 900 nm, accommodating a variety of fluorophores utilized in fields such as oncology, immunology, and stem cell research.

Reliable Multimodal Imaging

This system seamlessly integrates bioluminescence, fluorescence, X-ray, and Cherenkov imaging, providing a versatile solution for in vivo experimental workflows.

Quantitative Accuracy

Through calibration, spectral unmixing, and flat-field correction, the system guarantees dependable quantification throughout various imaging sessions.

Scalable Field of View

The imaging capabilities extend from 2.5 × 2.5 cm to 25 × 25 cm, making it suitable for both localized and whole-body applications.

Data Consistency

Corrections for bias, background, and cosmic rays improve image uniformity and ensure reproducibility.

Highlights of the MOIS HT Small Animal In Vivo Imaging System

  • Equipped with a back-illuminated CCD camera that is depth-cooled to -90°C, effectively minimizing background noise.
  • It boasts a quantum efficiency exceeding 90%, with specialized coating on the chip to guarantee high sensitivity within the 500-700nm spectrum.
  • With an F/Stop of ≤ 0.95, the lens captures more photons per unit time, allowing for the acquisition of finer details with reduced noise.
  • The system covers a broad wavelength range from 400 to 900 nm, making it suitable for various commonly utilized dyes and probes in scientific research applications.
  • Standard equipment includes 19 excitation filters and 7 emission narrow band filters, ensuring a pure signal to prevent color crosstalk and deliver realistic data.
  • The calibrated light source complies with NIST standards for absolute bioluminescence quantification, ensuring consistent results across imaging parameters.
  • Uniformity in excitation light intensity guarantees consistent strength across different fields of view, thereby enhancing the reliability of fluorescence data collection.
  • The field of view (FOV) is ≥ 25cm × 25cm, allowing for the simultaneous monitoring of at least 5 animals.
  • It is equipped with a 5-channel anesthesia tray and active scavenging masks to prevent leakage of anesthetic gases.

Comparison of Small Animal In Vivo Imaging Systems: -70℃ vs -90℃

Model

MOIS HTP

MOIS HT

Parameter

-70℃ Version

-90℃ Version

Dark Current

0.0004 (typical) – 0.001 (max)

0.000177 (typical)

Readout Noise

@100KHz: 3.0 e⁻ (typical), 5 e⁻ (max) @2MHz: 9 e⁻ (typical), 15 e⁻ (max)

@50KHz: 2.9 e⁻ (typical) @1MHz: 6.6 e⁻ (typical)

Signal-to-Noise Ratio (SNR)

Slightly lower SNR, may affect high-precision imaging

Higher SNR, suitable for ultra-low noise high-resolution imaging

Image Quality

Good for standard imaging, less effective for low light signals

Excellent low light capture, ideal for high-resolution and low noise imaging

Application Scenarios

General small animal imaging experiments

High-precision imaging, low signal detection, long-term monitoring

Stability

Higher dark current and noise may affect result consistency

Lower dark current and noise enhance image stability and reliability

Research Suitability

Basic research and drug development

Preclinical research, oncology, drug tracking, and dynamic monitoring

Additional Recommendations:

  • High-Precision Imaging: The -90℃ version features significantly lower dark current and readout noise, ensuring sharper and more detailed images.
  • Stability and Reliability: The reduction in dark current enhances stability, which is crucial for long-term experiments.
  • Future-Proof: The -90℃ version offers long-term value for increasingly precise imaging requirements.
  • Superior Low-Light Performance: It is ideal for detecting weak light signals in fluorescence and molecular imaging.

Applications of RWD MOIS Series

  • Cancer
  • Drug Development
  • Immunity & Stem Cells
  • Developmental Biology
  • Neuroscience
  • Genetics & Molecular Biology

Specification parameters

Module

Parameters

MOIS HTP

MOIS HT

MOIS HTX

Imaging Modules

Fluorescence Imaging Module

Bioluminescence Imaging Module

Spectral High-Resolution Imaging

X-Ray Module

×

×

Upconversion Fluorescence Imaging (UCFI) Module

Expandable & Upgradeable

Detector

Camera Type

Back-illuminated sensor, Scientific-grade CCD

Operating Temperature

-70℃

-90℃

-90℃

Pixel Count

1024×1024

Aperture (F-Stop)

≤ 0.95

Minimum FOV (Field of View)

2.5cm × 2.5cm(optional)

Maximum FOV

25cm × 25cm

Quantum Efficiency

≥90%500–700nm

Laser System

Broadband Light Source

150W Halogen-tungsten broadband

Guide Laser

Real-time FOV center display for positioning

Filters

Excitation Filters

19

Emission Filters

7

Software

Real-time Acquisition System

Supports real-time image acquisition with light prompts, time series module, communication connection, and bioluminescence/fluorescence multi-mode imaging switching. Synchronous acquisition module supported.

Offline Analysis Workstation

Support image analysis, time spectrum analysis module, need to be authorized by molecular software quantitative module

Environmental Control

Multi-Animal Imaging Chamber

5 channels

Temperature Module

Temperature control range: 20-40 ℃, accuracy: ±0.1℃

Anesthesia System

Anesthesia gas control: isoflurane, concentration: 0.5%-5% adjustable

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