NanoGenius Plus Ultra-Micro Spectrophotometer by Mapada
| Brand | Mapada |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Category | Domestic |
| Model | NanoGenius Plus |
| Pricing | Available Upon Request |
Overview
The NanoGenius Plus Ultra-Micro Spectrophotometer is an engineered optical instrument designed for rapid, accurate quantification and quality assessment of nucleic acids, proteins, and other UV-absorbing biomolecules directly from microliter-volume samples. It operates on the principle of absorbance spectroscopy in the ultraviolet–visible (UV-Vis) range (190–850 nm), utilizing a pulsed xenon lamp as its broadband light source. Unlike conventional continuous-output lamps, the flash-based illumination delivers high-intensity spectral output only during measurement—minimizing photodegradation of light-sensitive biological samples such as RNA, ssDNA, or fluorescently labeled conjugates. Its ratioed double-beam architecture compensates in real time for source intensity drift and optical path variations, ensuring high reproducibility across repeated measurements and extended operational sessions.
Key Features
- Pulsed xenon lamp with >1×10⁹ flash cycles lifetime—engineered for over 10 years of routine laboratory use without replacement.
- Cold-light operation: zero warm-up delay; instrument achieves optical stability immediately upon power-on.
- Optical path protection: sample exposure limited exclusively to the duration of measurement—critical for preserving integrity of photolabile analytes.
- Ratio double-beam design: simultaneous reference and sample beam detection eliminates baseline drift caused by lamp instability or environmental fluctuations.
- Dual silicon photodiode detector array: provides stable signal acquisition and low-noise performance across the full spectral range.
- Integrated 8-inch detachable multi-touch LCD display: enables standalone operation with intuitive gesture-based navigation and real-time spectral visualization.
- Capillary-based microvolume measurement: eliminates need for cuvettes; sample forms a vertical liquid column between two quartz optical surfaces via surface tension.
- Sample volume requirement: 0.5–2 µL—ideal for precious, low-yield preparations including CRISPR guide RNA, single-cell lysates, or limited clinical biopsies.
- Wide dynamic quantification range: 10–5000 ng/µL for dsDNA; 0.03–300 mg/mL for BSA—enabling direct analysis without serial dilution or concentration adjustment.
Sample Compatibility & Compliance
The NanoGenius Plus supports aqueous and mildly buffered solutions commonly used in molecular biology workflows—including TE buffer, low-salt Tris-HCl, and nuclease-free water. It is compatible with standard nucleic acid and protein standards (e.g., lambda DNA, calf thymus DNA, lysozyme, and bovine serum albumin). While not certified for regulatory submission under FDA 21 CFR Part 11, the system supports audit-trail-enabled data logging when operated within validated laboratory information management systems (LIMS) or compliant ELN environments. Instrument design aligns with ISO/IEC 17025 general requirements for competence of testing and calibration laboratories, and spectral accuracy is traceable to NIST-certified reference materials.
Software & Data Management
The embedded firmware includes preconfigured assay templates for A260/A280/A230 ratio analysis, Nanodrop-style concentration calculation, and custom extinction coefficient entry. Users may define and save proprietary methods—including multi-wavelength kinetics, peak identification, and baseline correction algorithms. Data export options include CSV, PDF report generation, and XML metadata tagging. USB host interface supports external keyboard/mouse input and direct transfer to network storage or cloud-synced drives. Optional PC software (Mapada SpectraSuite™) provides advanced spectral overlay, batch processing, and GLP-compliant electronic signature support for regulated environments.
Applications
- Quantitative assessment of genomic DNA, plasmid DNA, cDNA, and synthetic oligonucleotides prior to sequencing or transfection.
- Routine QC of RNA integrity using A260/A230 and A260/A280 ratios—particularly valuable for FFPE-derived or degraded samples.
- Protein concentration determination via A280 absorbance, including antibody titration and purified enzyme characterization.
- Verification of labeling efficiency in dye-conjugated probes (e.g., Cy3/Cy5-labeled oligos) using dual-wavelength absorbance ratios.
- High-throughput screening support in core facilities where minimal sample consumption and rapid turnaround are essential.
- Teaching laboratories requiring robust, low-maintenance instrumentation for undergraduate biochemistry and molecular biology instruction.
FAQ
Does the NanoGenius Plus require regular lamp calibration?
No—xenon flash lamps exhibit negligible spectral shift over their service life; however, daily blanking with ultrapure water is recommended to maintain optical path consistency.
Can the instrument measure turbid or particulate-containing samples?
Not recommended—microvolume mode assumes homogeneous solution-phase absorbance; suspended particles cause scattering artifacts and inaccurate A260 readings.
Is there a validation protocol available for GMP environments?
Yes—Mapada provides IQ/OQ documentation templates and optional third-party PQ services aligned with ASTM E2919 and USP spectrophotometer qualification guidelines.
What cleaning procedure is required between samples?
Wipe both quartz pedestals with lint-free optical tissue, then rinse with ≥18.2 MΩ·cm ultrapure water; air-dry for ≤30 seconds before next measurement.
How does the NanoGenius Plus compare to legacy cuvette-based UV-Vis systems in terms of pathlength accuracy?
It uses fixed, factory-calibrated 0.05 mm and 1.0 mm pathlength settings—automatically selected based on absorbance magnitude—eliminating manual pathlength errors inherent in variable-height cuvettes.
