TECHNOLOGY & VALIDATION
Evidence before application
NanoSense develops patented nano-optical sensing technology designed to detect selected molecular compounds in real time — in compact systems engineered for use outside the laboratory.
INDEPENDENT VERIFICATION
Independent NPL / TBP Testing.
Controlled TBP Testing with Independent NPL Confirmation.
CONTROL / AMBIENT AIR
The sensor system was operated under ambient-air conditions for approximately one hour. The first 10 minutes, beginning at 11:37, were used to establish the sensor baseline.
TBP EXPOSURE
The first TBP introduction was made at 13:00, followed by further introductions at 13:06 and 13:11 from the same substrate.
All eight displayed sensor channels showed an immediate response to TBP.
INDEPENDENT NPL CONFIRMATION
NPL simultaneously collected independent chamber samples during the TBP exposure test. Sampling ran from 12:57 to 13:54.
NPL analysis confirmed the presence of TBP in all four valid exposed samples.
Establishing the Sensor Baseline
All eight displayed sensor channels then maintained a steady background, with no response to species present in the test chamber.
All eight displayed sensor channels maintained a steady background during the control period.
INDEPENDENT CHAMBER SAMPLING
NPL also carried out independent pumped sampling during the control period. No TBP was detected in the valid chamber-background sample within the reported detection limit.
TBP EXPOSURE
TBP Exposure
The first TBP introduction was made at 13:00, followed by further introductions at 13:06 and 13:11 from the same substrate. Further substrates were subsequently used to maximise the presence of TBP in the chamber.
All eight displayed sensor channels showed an immediate response to TBP.
Immediate Response
All eight sensor channels responded immediately when TBP was introduced.
Response one
Response two
Response three
Response four
Response Five
Response Six
Response Seven
Response Eight
Repeatable Response
The response occurred on all three fresh TBP introductions recorded in the test.
1
13:00
FIRST TBP
RESPONSE RECORDED
2
13:06
FURTHER
RESPONSE RECORDED
3
13:11
FURTHER
RESPONSE RECORDED
Alarm Activation
The control software registered a TBP detection alarm.
TBP DETECTION
Alarm Registered
Independent NPL Confirmation
NPL simultaneously collected independent chamber samples during the TBP exposure test using industry-standard sorbent sampling.
The exposed samples were subsequently analysed at NPL using automated thermal desorption with gas chromatography/mass spectrometry (GC/MS).
12:57
SAMPLING
START
13:54
SAMPLING
END
Valid Exposed Samples
Sample1
Sample2
Sample3
Sample4
Sensor Response During TBP Exposure
Real-time sensor response during controlled TBP testing
NPL / TBP exposure test
Independent NPL testing provides the external reference against which the NanoSense sensor response was assessed.
NPL Test Report
Independent analysis supporting the TBP exposure test results described above.
Evidence will continue to grow.
Further demonstrations and platform evidence will be added as supporting material becomes available.
BREATHINSIGHT
PLATFORM DEVELOPMENT
INTELLECTUAL PROPERTY
Where could you take NanoSense?
We’re looking for organisations with the expertise, environments and ambition to help turn NanoSense technology into mission-specific sensing solutions.