WaterSpy aims to develop water quality analysis photonics technology suitable for inline, field measurements. WaterSpy technology will be integrated, for validation purposes, to a commercially successful water quality monitoring platform, in the form of a portable device add-on. WaterSpy will be used in the field for the analysis of critical points of water distribution networks. Waterspy solutions will be demonstrated in two different demo sites in Italy.

Photonics West

Stephan Freitag gave a lecture with a title: '' Towards ultrasound enhanced mid-IR spectroscopy for sensing bacteria in aqueous solutions'' in Microfluidics, BioMEMS and Medical Microsystems XVI Abstract We employ mid-IR quantum cascade lasers and mid-IR waveguide...

A photothermal Mach-Zehnder interferometer for measuring caffeine and proteins in aqueous solutions using external cavity quantum cascade lasers

Bernard Lendl gave a lecture with title: ''A photothermal Mach-Zehnder interferometer for measuring caffeine and proteins in aqueous solutions using external cavity quantum cascade lasers" in Biomedical Vibrational Spectroscopy 2018: Advances in Research and Industry...

Ultrasound enhanced mid-IR spectroscopy for sensing bacteria in aqueous solutions

In this work, we demonstrate our activities towards the combination of an ultrasound (US) enhanced ATR-IR setup for analysis of bacteria in water. For samples containing low bacteria levels, US-enhanced ATR-IR spectroscopy poses an interesting approach, because the...

October 2-4th, 2017, the Water Environment Federation’s Annual Technical Exhibition and Conference (WEFTEC), Chicago, US.

AUG Hellas’ Senior Project Manager, Dr. Cindy Hu, and Principal Chemical Engineer, Dr. Eric Morris, attended the Water Environment Federation’s Annual Technical Exhibition and Conference (WEFTEC). WEFTEC is recognized as the world’s largest annual water quality...

July 25-27th, 2017, the Assembly of First Nations (AFN) 38th Annual General Assembly (AGA) and tradeshow

AUG Hellas’ Director, Dr. George Lampropoulos, and Principal Chemical Engineer, Dr. Eric Morris, attended the Assembly of First Nations (AFN) 38th Annual General Assembly (AGA) and tradeshow. During this tradeshow, AUG showcased WaterSpy as a future expansion to the...

WaterSpy Narrative v.3

WaterSpy – first year of research and development The WaterSpy project is developing water quality analysis photonics technology suitable for online, field measurements. WaterSpy technology will be integrated, for validation purposes, into an existing, commercial...

WaterSpy Narrative v.2

WaterSpy – first six months of research The WaterSpy project addresses the water quality challenge by developing water quality analysis photonics technology suitable for inline, field measurements. WaterSpy technology will be integrated, for validation purposes, to a...

WaterSpy Leaflet

The first version of WaterSpy Leaflet is available for downloading.

WaterSpy Narrative v.1

WaterSpy – reinventing water quality analysis Freshwater is a finite resource essential to agriculture, industry and basic human existence. Water pollution and wasteful use of freshwater threaten life itself. In a water distribution network, hazardous contaminants can...
     

 

WaterSpy

WaterSpy added 2 new photos.Friday, February 16th, 2018 at 3:36am

Stephan Freitag gave a lecture with a title: ” Towards ultrasound enhanced mid-IR spectroscopy for sensing bacteria in aqueous solutions’‘ in Microfluidics, BioMEMS and Medical Microsystems XVI

Abstract

We employ mid-IR quantum cascade lasers and mid-IR waveguide technology for sensing of bacteria present in aqueous solution. An ultrasonic trap made of a sound source vibrating at 2 MHz and the IRE element itself is integrated in a microfluidic system for sample handing. This trap is employed to push the bacteria against the waveguide for measurement. Based on the characteristic mid-IR absorption bands of bacteria they can be distinguished from other particles present in the sample. Current work aims at the selective measurement of E. coli, P aeruginosa as well as Salmonella in drinking water.

#Photonics @Photonics21 @PhotonicsEU WaterSpy

WaterSpy

WaterSpyFriday, February 16th, 2018 at 3:34am

A photothermal Mach-Zehnder interferometer for measuring caffeine and proteins in aqueous solutions using external cavity quantum cascade lasers

Bernard Lendl gave a lecture with title: ”A photothermal Mach-Zehnder interferometer for measuring caffeine and proteins in aqueous solutions using external cavity quantum cascade lasers” in Biomedical Vibrational Spectroscopy 2018: Advances in Research and Industry

Abstract

One of the advantages of mid-IR spectroscopy in biomedical research lies in its capability to provide direct information on the secondary structure of proteins in their natural, often aqueous, environment. One impediment of direct absorption measurements in the correspondent spectral region is the strong absorbance of the native solvent (H2O). In this regard, the advent of broadly-tunable external cavity quantum cascade lasers (EC-QCL) allowed to significantly increasing the optical path length employed in transmission measurements due to their high spectral power densities. Low measured S/N ratios were improved by elaborated data analysis protocols that corrected mechanical flaws in the tuning mechanism of ECQCLs and allow for S/N ratios comparable to research grade FTIR spectrometers. Recent development of new optical set-ups outpacing direct absorption measurements led to further advancements. We present a dedicated Mach-Zehnder interferometer for photothermal measurements in balanced detection mode. In this highly sensitive design, the interferometer is illuminated by a HeNe laser to detect the refractive index change induced by the heat insertion of the EC-QCL. Here, we present photothermal phase shift interferometry measurements of caffeine in ethanol as well as casein in water. Further, the dependency of the signal amplitude on varying modulation frequencies was investigated for different liquids.

http://waterspy.eu/

#Photonics21 @PhotonicsEU WaterSpy

 

Wednesday, July 12th, 2017 at 9:52pm
Ανατρέποντας τα δεδομένα στην ανάλυση της ποιότητας του πόσιμου νερού #Photonics @Photonics21 @PhotonicsEU
https://t.co/lKmnBsULsQ
Thursday, July 6th, 2017 at 7:12pm
Interim project review of @WaterSpy_Eu is announced by EU. It is planning around November-December.
Wednesday, July 5th, 2017 at 9:43pm
WaterSpy participates in the ACM conference PETRA 2017, the paper can be found at ( https://t.co/BvyqyQqlmd)