Molecular Devices SpectraMax iD3s Multimode Microplate Reader
| Brand | Molecular Devices |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Origin | Domestic (China) |
| Model | SpectraMax iD3s |
| Pricing | Available Upon Request |
Overview
The Molecular Devices SpectraMax iD3s is a compact, high-performance multimode microplate reader engineered for precision and flexibility in life science laboratories. Built upon a quad-monochromator optical architecture with dual xenon flash lamp excitation, it delivers full-spectrum wavelength selection across absorbance (230–1000 nm), fluorescence intensity (250–850 nm), and luminescence (300–850 nm) detection modes. Unlike filter-based systems, its grating-based monochromators eliminate the need for physical filter wheels—enabling rapid, software-defined wavelength optimization without hardware swaps. The instrument integrates Peltier-based temperature control (ambient to 45 °C, ±0.5 °C stability), critical for kinetic assays and cell-based measurements requiring thermal consistency. Its modular design supports field-upgradable components including SmartInject® dual syringe injectors, environmental gas control modules (O₂/CO₂), and advanced orbital shaking—making it suitable for both endpoint and real-time live-cell applications under physiologically relevant conditions.
Key Features
- Quad-monochromator system enabling continuous wavelength scanning and narrow bandwidth selection (≤2.5 nm) for optimal spectral resolution and assay specificity.
- PMT detector cooled to –5 °C for enhanced signal-to-noise ratio in low-light fluorescence and luminescence assays; photodiode channel for high-dynamic-range absorbance measurements.
- SmartInject® dual-syringe module with 10 μL dead volume, programmable injection timing and volume per well—optimized for flash-type luciferase assays (e.g., ATP quantification) and kinetic mixing-dependent reactions.
- Optional environmental control unit supporting independent regulation of O₂ (1–21%, 0.1% increments) and CO₂ (0.1–15%, 0.1% increments), validated for long-term mammalian and microbial culture monitoring.
- Integrated orbital shaker with adjustable speed (up to 1,200 rpm) and amplitude, compatible with 6–384-well plates and enabling uniform reagent dispersion prior to read.
- SpectraDrop™ ultra-low-volume microplate adapter accommodates 2–4 μL samples; SpectraCuvette™ cuvette adapter enables horizontal cuvette-based measurements without external instrumentation.
Sample Compatibility & Compliance
The SpectraMax iD3s supports standard microplate formats (6-, 12-, 24-, 48-, 96-, and 384-well), as well as specialized consumables including opaque white/black plates for luminescence/fluorescence, clear-bottom plates for imaging-coupled assays, and low-volume SpectraDrop plates. All detection modes comply with ASTM E275, ISO 15195, and CLSI EP17-A2 guidelines for analytical performance verification. SoftMax Pro software supports 21 CFR Part 11-compliant audit trails, electronic signatures, and role-based user access—facilitating GLP/GMP-aligned workflows in regulated environments such as clinical diagnostics and biopharmaceutical QC.
Software & Data Management
SoftMax Pro 7 software—widely cited in peer-reviewed literature—is included as standard. It provides intuitive protocol building, real-time data visualization, built-in curve fitting (4PL, 5PL, linear, exponential), and automated plate mapping. Raw data export is supported in CSV, Excel, and XML formats; integration with LIMS and ELN platforms is enabled via ODBC and RESTful API. Version-controlled method templates ensure inter-laboratory reproducibility, while batch processing tools accelerate high-throughput screening analysis.
Applications
The SpectraMax iD3s is routinely deployed in quantitative and kinetic assays including ELISA, nucleic acid (dsDNA/ssDNA/RNA) and protein (BCA, Bradford, Lowry) quantification, cell viability (MTT, resazurin, ATP-luciferase), cytotoxicity (LDH, caspase-3/7), apoptosis (Annexin V, TUNEL), reporter gene expression (GFP, luciferase), microbial growth kinetics, enzyme kinetics (kinetic absorbance), and intracellular signaling (Ca²⁺ flux, cAMP). Its environmental control capability extends utility to hypoxia studies, stem cell differentiation assays, and aerobic/anaerobic bacterial metabolism profiling.
FAQ
Does the SpectraMax iD3s support kinetic luminescence measurements?
Yes—it enables time-resolved luminescence acquisition up to 1,000 readings per well with user-defined intervals, fully compatible with flash-type luciferase assays when paired with SmartInject®.
Can I validate this instrument according to ISO/IEC 17025 requirements?
Yes—its optical performance, temperature uniformity, and pipetting accuracy are verifiable using Molecular Devices’ certified calibration kits and documented SOPs aligned with ISO/IEC 17025 Annex A.2.
Is SoftMax Pro software validated for use in FDA-regulated environments?
Yes—SoftMax Pro 7 includes 21 CFR Part 11 compliance features including electronic signatures, audit trail logging, and password-protected configuration changes, with validation documentation available upon request.
What is the maximum plate format supported for gas-controlled incubation?
The optional gas control module supports 6–96-well plates with lid-compatible sealing; 384-well operation is supported only in ambient or temperature-controlled (non-gas) mode.
How does the SpectraMax iD3s differ from the iD5 model?
The iD3s offers identical core optics and detection capabilities but omits the integrated touchscreen and onboard storage of the iD5—relying instead on PC-based SoftMax Pro control, resulting in lower acquisition cost and simplified maintenance.
