Metal Nano Layer Coating for Improving the Detection and Recognition of Micro-Poisons Using Reflection Spectroscopic Measurement

Amir Abramovich^*, Alexander Shulzinger, Meir Ochana, David Rotshild

Department of Electrical and Electronic Engineering, Ariel University, Ariel, Israel.

DOI: 10.4236/opj.2015.55018                

Abstract

Metal nano layer coating for increasing the sensitivity of spectroscopic measurements is proposed and experimentally demonstrated in this paper. The metal nano layer will attract the micro-poisons from any measured aqueous sample increasing the concentration of the micro-poison in the vicinity of the surface and significantly improves the sensitivity of the spectroscopic measurement. The demonstration was carried out using Fourier Transform Infra-Red (FTIR) operating in the MIR 400 cm^-1 - 4000 cm^-1 and 5 nm Gold layer which was grown on silicon oxide substrate. In the experimental demonstration Malathion organophosphate pesticide was used as micro-poison. The spectroscopic measurement proves that Malathion was attracted to the metal nano layer. Furthermore, the absorption lines of Malathion were detected and recognized. This proof of principle can be applied to any Internal Reflection Elements (IRE) and it can be used to purify any aqueous solutions and atmosphere from micro-poisons which will be attracted to the metal Nano layer.

Keywords

FTIR Spectroscopy, Internal Reflection Element (IRE), Metal Nano Layer Coating, Detection of Micro-Poisons, Organophosphates

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Pruss-Ustun, A., Vickers, C., Haefliger, P. and Bertollini, R. (2011) Known and Unknowns on Burden of Disease Due to Chemicals: A Systematic Review. Environmental Health, 10, 9. http://dx.doi.org/10.1186/1476-069X-10-9
[2]	Briggs, D. (1991) Environmental Pollution and the Global Burden of Disease. British Medical Bulletin, 68, 1-24. http://dx.doi.org/10.1093/bmb/ldg019
[3]	Chompton, J.A. (1988) Military Chemical and Biological Agents. Telford Press, NJ, 135.
[4]	Yao, S., Meyer, A., Henze, G. and Fresenius, J. (1991) Comparison of Amperometric and UV-Spectrophotometric Monitoring in the HPLC Analysis of Pesticides. Journal of Analytical Chemistry, 339, 207-211. http://dx.doi.org/10.1007/BF00325738
[5]	Sherma, J. (1993) Pesticides. Journal of Analytical Chemistry, 65, R40. http://dx.doi.org/10.1021/ac00060a004
[6]	Leyden, D.E. and Wegscheider, W. (1981) Pre-Concentration for Trace Element Determination in Aqueous Samples. Journal of Analytical Chemistry, 53, 1059A-1065A. http://dx.doi.org/10.1021/ac00232a731
[7]	Spietelun, A., Pilarczyk, M., Kloskowski, A. and Namiesnik, J. (2010) Current Trends in Solid-Phase Microextraction (SPME) Fiber Coatings. Chemical Society Reviews, 39, 4524. http://dx.doi.org/10.1039/c003335a
[8]	Harper, M. (2000) Sorbent Trapping of Volatile Organic Compounds from Air. Journal of Chromatography A, 885, 129-151. http://dx.doi.org/10.1016/S0021-9673(00)00363-0
[9]	Mulchandani, A., Chen, W., Mulchandani, P., Wang, J. and Rogers, K.R. (2001) Biosensors for Direct Determination of Organophosphate Pesticides. Biosensors and Bioelectronics, 16, 225. http://dx.doi.org/10.1016/S0956-5663(01)00126-9
[10]	Palchetti, I., Cagnini, A., Del Carlo, M., Coppi, C., Mascini, M. and Turner, A.P.F. (1997) Determination of Anticholinesterase Pesticides in Real Samples Using a Disposable Biosensor. Analytica Chimica Acta, 337, 315. http://dx.doi.org/10.1016/S0003-2670(96)00418-7
[11]	Mulchandani, A., Mulchandani, P., Kaneva, I. and Chen, W. (1998) Biosensor for Direct Determination of Organophosphate Nerve Agents Using Recombinant Escherichia coli with Surface-Expressed Organophosphorus Hydrolase. 1. Potentiometric Microbial Electrode. Analytical Chemistry, 70, 4140-4145, http://dx.doi.org/10.1021/ac9805201
[12]	Mulchandani, A., Kaneva, I. and Chen, W. (1998) Biosensor for Direct Determination of Organophosphate Nerve Agents Using Recombinant Escherichia coli with Surface-Expressed Organophosphorus Hydrolase. 2. Fiber-Optic Microbial Biosensor. Analytical Chemistry, 70, 5042-5046. http://dx.doi.org/10.1021/ac980643l
[13]	Harrick, N.J. (1967) Internal Reflection Spectroscopy. Wiley, New York.
[14]	Li-Chan, E., Chalmers, J. and Griffiths, P. (2010) Applications of Vibrational Spectroscopy in Food Science. Wiley, New York.
[15]	Griffiths, P.R. and de Haseth, J.A. (1986) Fourier Transform Infrared Spectrometry, Wiley, New York.
[16]	Singh, B.R. and Fuller, M.P. (1991) FT-IR in Combination with the Attenuated Total Reflectance Technique: A Very Sensitive Method for the Structural Analysis of Polypeptides. Applied Spectroscopy, 45, 1017-1021. http://dx.doi.org/10.1366/0003702914336174
[17]	Janotta, M., Karlowatz, M., Vogt, F. and Mizaikoff, B. (2003) Sol-Gel Based Mid-Infrared Evanescent Wave Sensors for Detection of Organophosphate Pesticides in Aqueous Solution. Analytica Chimica Acta, 496, 339-348. http://dx.doi.org/10.1016/S0003-2670(03)01011-0
[18]	Yang, J. and Griffiths, P.R. (2007) Preparation and Characterization by Surface-Enhanced Infrared Absorption Spectroscopy of Silver Nanoparticles Formed on Germanium Substrates by Electroless Displacement. Analytical and Bioanalytical Chemistry, 388, 109-119. http://dx.doi.org/10.1007/s00216-006-1109-7
[19]	Taylor, R., Coulombe, S., Otanicar, T., Phelan, P., Gunawan, A., Lv, W., Rosengarten, G., Prasher, R. and Tyagi, H. (2013) Small Particles, Big Impacts: A Review of the Diverse Applications of Nanofluids. Journal of Applied Physics, 113, Article ID: 011301. http://dx.doi.org/10.1063/1.4754271
[20]	Park, J., Yang, R.D., Colesniuc, C., Sharoni, A., Jin, S., Schuller, I.K., Trogler, W.C. and Kummel, A.C. (2008) Bilayer Processing for an Enhanced Organic-Electrode Contact in Ultrathin Bottom Contact Organic Transistors. Applied Physics Letters, 92, Article ID: 193311. http://dx.doi.org/10.1063/1.2918121
[21]	Behrisch, R. (1981) Sputtering by Particle Bombardment. Springer, Berlin. http://dx.doi.org/10.1007/3-540-10521-2
[22]	Howard, P.H. (1991) Handbook of Environmental Fate and Exposure Data: For Organic Chemicals. Taylor & Francis Group, UK.
[23]	Bonner, M.R., Coble, J., Blair, A., et al. (2007) Malathion Exposure and the Incidence of Cancer in the Agricultural Health Study. American Journal of Epidemiology, 166, 1023-1034. http://dx.doi.org/10.1093/aje/kwm182