Quartz crystal microbalance with metal-organic framework lattice — molecular sensing platform
+ Technology · The science underneath

Detect. Predict. Remediate.

A unified molecular sensing platform — MOF chemistry, FBAR transduction, and on-board TinyML — wrapped around an active gated getter that doesn't just watch contamination, it removes it.

MOF chemistry FBAR arrays TinyML on-board MGG remediation
01 · The platform

One stack. Three jobs. Detect what's there, predict what it means, remediate before damage.

Most environmental sensors stop at detection. Moseley closes the loop — we read molecules in parts-per-billion, infer their meaning on-device, then actively pull the bad ones out of the air. It's the same platform whether it's wafers in a fab or mangoes in a reefer.

01 Detect
Molecular awareness
A 16-sensor MOF-coated FBAR array — four sensors per channel, four channels — reads the molecular fingerprint of the air at parts-per-billion. Channel redundancy kills false positives. One reading per sensor per second.
MOFFBARppb
02 Predict
On-board intelligence
A lightweight TinyML model runs on the MCU of the E-Canister and E-Nose PCBA — the same board that hosts the 16-sensor FBAR array. It separates real signal from siloxane and humidity drift, fingerprints the contaminant, and emits a per-asset risk score every second — no cloud round-trip required.
TinyMLedge1 Hz
03 Remediate
Active intervention
When risk crosses a threshold, the Moseley Gated Getter opens. Thermally-stimulated MOF gates expose fresh sorbent, capture the contaminant, then re-seal. The bad molecules don't reach the wafer — or the fruit.
MGGthermalactive
02 · MOF chemistry

Molecular sieves you can tune like a recipe.

Metal-organic frameworks are crystalline cages — metal nodes joined by organic linkers — with pores measured in ångströms. Change the linker, change which molecules fit.

We coat each FBAR with a target-selective MOF and group them into four sensing channels, with four sensors per channel for redundancy and cross-correlation. The result is an array that doesn't just see "something's there" — it sees what is there, and rejects what isn't.

The same chemistry doubles as the active capture material in the Gated Getter. Detection and remediation share a chassis.

ppb
Detection floor
Parts-per-billion sensitivity from a footprint smaller than a coin.
12+
MOF library
Tuned receptors across ethylene, NH₃, HF, NMP, VOCs and humidity-tolerant variants.
SDK
Open chemistry
Third parties can drop in their own MOFs — the platform is receptor-agnostic.
Server racks with active fibre lines — cloud and edge inference
+ Edge → Cloud   1 Hz inference per canister · mesh → gateway → MES
03 · FBAR transduction

A resonator that weighs molecules.

A film bulk acoustic resonator (FBAR) vibrates at a precise frequency, governed by the mass on its surface. When a molecule binds to the MOF coating, the resonator gets microscopically heavier — and the frequency drops by a measurable amount.

Read that shift continuously, across 16 sensors arranged as four sensors per channel across four channels, and you get a real-time chemical fingerprint of the air. The redundancy is deliberate: four sensors per channel let the model cross-correlate within a channel and across channels, killing false positives that any single sensor would happily report.

No reagents. No wet chemistry. No drift past calibration. The same physics behind every smartphone RF filter — repurposed to keep your wafers and your produce safe.

16
Sensors per canister
Four sensors per channel × four channels. Plus a sealed reference for drift calibration.
4 + 4
Channels × redundancy
Four target-selective channels, four sensors each. Cross-correlation rejects siloxane, humidity and crystal-age drift.
1 Hz
Sample rate
Every second. Continuous. Across all 16 sensors. Streamed straight into the on-board model.
04 · TinyML on the PCBA

The model lives on the board, not in the cloud.

An FBAR array doesn't directly say "ethylene is at 12 ppb." It produces a 16-dimensional vector of frequency shifts, drifting with humidity, temperature and resonator age. Turning that into a meaningful number is a machine-learning problem.

We do it at the edge. The 16-sensor FBAR array sits on the same PCBA as a low-power MCU inside the E-Canister and E-Nose label. The sensors read the air; the MCU runs the model. A compact neural network fingerprints the full 16-channel response, compensates for drift, and emits a calibrated risk score every second — all on the board, before anything touches the radio.

That matters because reefers cross oceans, fabs run on second-by-second budgets, and remediation has to fire before the cloud round-trip would even complete.

MCU
Inference location
On the same PCBA as the 16-sensor FBAR array. No cloud dependency for the safety-critical decision.
ms
Decision latency
Milliseconds from molecular hit to remediation trigger.
OTA
Model updates
Improve the model in the lab — push it to every canister in the field.
05 · The differentiator

Moseley Gated Getter — active remediation, not just detection.

Detection without action is just a louder alarm. The Moseley Gated Getter (MGG) is the bit competitors don't have — a thermally-stimulated MOF surface that holds contaminants captive then releases them on cue, all inside the same chassis as the sensor.

01 · Sense
Array reads the air
16-sensor FBAR array detects a target molecule rising past threshold across one or more channels.
02 · Decide
Edge model classifies risk
TinyML separates true contaminant signal from drift, fires remediate.
03 · Capture
Gated MOF opens
Thermal pulse exposes fresh sorbent surface — molecules bind and stay.
04 · Reset
Gate re-seals
Surface re-closes; capacity reported to cloud; cycle ready to repeat.
Cities at night seen from orbit — a global ambient IoT canvas
+ Reach   Same physics · every continent · every cold corridor
06 · Form factors

Same platform. Different chassis.

The detect-predict-remediate stack is the constant. The packaging changes to match where contamination lives.

E-Canister — palm-sized cylindrical sensor + getter for FOUPs, EFEMs, load ports, refrigerated containers, cool rooms.

E-Patch — 1.4 mm flexible printed sensor for cartons and pallets. BLE telemetry, single-use, compostable.

E-Shield — humidity-hardened receptor variant for high-moisture environments.

One firmware. One cloud. One model architecture. The chemistry and the form factor swap.

FAB
Semiconductor use
FOUP, EFEM, load port, process chamber. ppb HF, NH₃, NMP, organics.
CHAIN
Cold chain use
Reefer, trailer, cool room, DC. Ethylene, ripening volatiles, pathogen markers.
API
Cloud delivery
REST + MQTT to the Moseley cloud, or stream into your existing SCADA / WMS.
07 · IP & patents

A patent portfolio behind every layer of the stack.

Patent applications filed under Ambient IoT Pty Ltd — patents pending — covering the canister architecture, gated remediation, humidity drift mitigation, and receptor-inspired sensing.

MGG
Moseley Gated GetterThermally-stimulated MOF remediation surface
E-CAN
E-Canister v2Sensor + getter cylinder for fab and cold-chain integration
E-HUM
E-HumidityHumidity drift mitigation across MOF arrays
E-SHD
E-ShieldReceptor-inspired gas sensing for high-moisture environments

Want to go deeper into the chemistry?

Technical briefs, MOF datasheets, and integration specs available under NDA. Get in touch and we'll set up a conversation with the engineering team.

→ Talk to engineering