◆ BioTorch™ · Forensic Detection System
See What
Remains Invisible.
445nm. No modulation. No compromise. Forensic-grade organic residue detection for biosecurity, infection control, and food safety.
◆ The Problem
Your surface passed the audit. But what did the audit miss?
Organic contamination on surfaces is invisible to the naked eye. Standard cleaning regimes cannot confirm whether residues have been fully removed. Visual inspection provides false assurance.
When a surface looks clean, it passes the audit. But appearance is not evidence. Pathogens persist on surfaces that meet every visual standard — because visual standards were never designed to detect them.
The result: infections propagate in environments that have been formally signed off as safe. The cleaning was done. The audit was passed. The contamination remained.
Source
NHS England · Health Protection Scotland · UKHSA Epidemiological Data
◆ What your cleaning audit is missing
Same surface · Same cleaning regime · Different instrument
Simulated representation. Actual results vary by surface type and contamination profile.
◆ The Science
Why 445nm. Why it matters.
The operating wavelength is not a marketing specification. It is a physics decision.
ILLUMINATE
BioTorch™ emits true 445nm wavelength light — the precise spectral point at which organic molecules absorb photons and enter an excited electronic state. No spectral drift. No modulation.
EXCITE
Organic residues — proteins, lipids, nucleic acids — absorb the 445nm photons. Electrons within the molecules are promoted to a higher energy state. This is physics, not approximation.
OBSERVE
As excited molecules return to ground state, they emit fluorescence — visible through Astravar's precision filter glasses. Contaminated areas glow. Clean surfaces remain dark.
ASSESS
Fluorescence is captured with the Astravar iOS app (no image enhancements, raw sensor data only). The result is evidential — forensic fact rather than human interpretation.
Interactive Wavelength Selector
Drag the indicator to explore how wavelength affects forensic detection performance.
445nm — BioTorch™ Operating Point
Optimal organic fluorescence excitation. This is the precise operating wavelength of BioTorch™. Proteins, lipids, and nucleic acids fluoresce reliably. Maximum signal-to-noise ratio. Forensic grade.
◆ Operational Note
BioTorch™ detects organic residue — not contamination. Surfaces cleaned with enzymatic or probiotic products may fluoresce. A positive result indicates the presence of organic material and warrants further investigation. It does not constitute confirmation of a specific pathogen. Detect. Investigate. Decide.
◆ Scoring System
FluoroIndex™ — Instant On-Site Scoring.
Six levels. No consumables. No laboratory. Validated against ATP RLU values.
FluoroIndex™ · Proprietary Scoring System
Validated against ATP RLU values — Fieldhouse et al. 2025
Visual Indicator
Surface appears uniform. No fluorescence visible at any scan angle.
ATP Equivalent
0–50 RLU
Interpretation
Clean — within baseline
Action
No action required
FluoroIndex™ validated against ATP RLU per Fieldhouse et al. (2025) — Journal of Hospital Infection. Proprietary scoring system © Astravar Ltd. When in doubt between two values, score higher — BioTorch data errs on the side of safety. Use 20–35° grazing angle at 30–50cm operating distance. Ambient light <100 lux for effective operation.
◆ Performance Comparison
BioTorch™ vs ATP Testing
No swabs. No waiting. No consumables.
BioTorch doesn't replace ATP testing where it's required. It tells you where to swab and whether the re-clean worked — instantly, visually, and without consumables.
◆ Validated Research Results
◆ Technical Specification
Built to Specification.
Every parameter is a deliberate design decision. Nothing is accidental. Nothing is approximate.
◆ Sector Applications
Built for Every Critical Environment.
The same physics. The same instrument. Deployed across the full range of environments where contamination carries operational, clinical, or legal consequence.
Facilities Management
Visual inspection tells you what surfaces look like. Not what is on them.
Infection Control
Hospital-acquired infections incubate in areas that passed visual inspection.
Food Safety
HACCP compliance requires verification, not assumption.
Biosecurity
In high-threat environments, first detection determines first response.
Healthcare
Patient safety depends on surfaces that are clean, not surfaces that look clean.
Forensics
Forensic integrity requires an instrument whose output is fact, not opinion.
◆ Healthcare Procurement
NHS Procurement Pathway.
BioTorch is available through multiple NHS procurement routes. Astravar is actively progressing the full regulatory pathway for healthcare use.
Available Procurement Routes
- ◆NHS Supply Chain frameworks
- ◆Medical Technology Innovation DPS
- ◆NHS SBS, LPP, NOE CPC, EOE CPC procurement hubs
- ◆Direct via mini-competitions within Trust frameworks
- ◆Monitor Find a Tender and Contracts Finder
Certification Pathway — In Progress
◆ Current Status
Astravar is actively progressing the NHS regulatory pathway. Current procurement is available via direct supply pending full framework registration. Contact our NHS team to discuss your Trust's specific procurement route.
◆ Integrated Capability
BioTorch™ is the Foundation.
Detection is layer one. Digital capture, certified training, and AI-enabled compliance complete the sovereign capability stack.
◆ Four-Layer Capability Architecture
The Astravar Ecosystem
◆ Product Enquiry
Request a Quote.
NHS, trade, and distributor pricing available. We respond within one working day.