In February 2016 Prof Ramsden completed all of the required research and development, with comprehensive data and a successful Proof of Concept, (POC) device to prove the mono-fibre optical technology capability to detect and measure TCP and other compounds that are present in aircraft cabins. He shared the research, data and a detailed report with Emeritus Professor Derek Frey FRS FREng of Cambridge University for his review. He subsequently attended Cambridge University for an in-person peer review by Professor Frey, which consisted of a presentation of the experiments, the subsequent data and evidence supporting the claims, a live demonstration of the POC, and a question and answer session. A précis of Professor Fray’s report is reproduced below:

“This is to certify that Professor Derek Fray witnessed a successful demonstration, by Professor Jeremy Ramsden, that showed that sensors based upon Metal – Organic – Frameworks (MOFs) responded quickly to organic vapours, including ethanol and toluene. It is the intention to have a series of MOFs which will form the basis of a device that will monitor volatile organic compounds found in the aircraft cabins.

The results of Prof. Ramsden’s research (i.e. the findings and data presented to me on the 12th February 2016) are valid, and demonstrate the potential of the device for accurate measurement of VOCs and SVOCs on board passenger aircraft.

Subject to more comprehensive experimentation and development to assure the device’s sensitivity and consistency of measurement, I would agree that the this technology/project should continue with the appropriate funding to develop a commercial VOC- & SVOC-measurement device for the aerospace industry”.

The following links outline the problem VN-ADS are working on:

The Stage 1 project ambitions were to: Deliver a ‘Handheld’ working prototype (suitable for mass production) with the requisite sensitivity to detect Tricresyl Phosphates, demonstrated in a mockup of the aircraft cabin environment (environmental chamber). This has now been achieved.

The project will therefore now proceed in the following manner.

Stage 2A: A second EIS Advanced Assured raise of £500k to completely de-risk the project by delivering; further experiments on newly originated metal organic frameworks (MOF’s) which will broaden the detection capability of the unit, further investigation into the application of MOF’s onto the fibre ends which will increase detection sensitivity, together with the design and production of 100 Mk 1 hand held units, fully certified for onboard use for distribution to Pilots and Cabin Crew throughout the industry.

Stage 2B: A third EIS Advanced Assured raise of £1.15 million to deliver:

The design and manufacturer of a ‘built in’ unit for retro-fit and new build Aircraft installation – Engineering, design and testing of said system for multi-aircraft installation and full approval for use via TSO and STC certification.


The information Memorandum is currently being written but the EIS investment offer should be considered as open and any investment enquiries directed to either or

The equity is priced at £5,000 per share with a minimum investment level of £25,000.