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Preparation and Characterization of Novel Polyaniline Nanosensor for Sensitive Detection of Formaldehyde


, : Preparation and Characterization of Novel Polyaniline Nanosensor for Sensitive Detection of Formaldehyde. Recent Patents on Nanotechnology 9(3): 195-203

Nanomaterials are promising in the field of optical sensors due to their unique properties. Emeraldine base of polyaniline (Nano EB-PANI) was prepared, characterized and applied as an optical formaldehyde sensor. FTIR data confirm the formation of the EB-PANI. TEM and SEM revealed the size and shape of the nanoscale EB-PANI. XRD showed that the obtained nano EB-PANI has a partial crystalline nature. The sensing mechanism is based on the reaction of formaldehyde with Nano EB-PANI- to form a complex as described by molecular modeling HF/3-21G** level of theory. Results showed that Nano EB-PANI- detect low concentrations of formaldehyde ranging from 0.0003 to 0.9 ppm in a dose-dependent manner. The molecular modeling theory analysis showed that formaldehyde could interact with the amine of EB-PANI in, ring 3 or 4 or both together. The binding energy and dipole moment of the interaction between formaldehyde and polyaniline nanosensor were calculated by HF/3-21g** level of theory. The interaction with ring 3-NH gives a less stable product with a high dipole moment 6.978 Debye comparing with 1.678 Debye for the product of formaldehyde interaction with the terminal ring 4-NH. The development of such novel EB-PANI nanosensor can be used as, reliable and sensitive formaldehyde sensor.

US$29.90

PMID: 27009134


Other references

Bakke, R.; Rambekk, M.; Johansen, J.E.a, 2003: Method for treatment of organic material in a two-step anaerobic biochemical reactor. The present invention relates to a method for treatment of organic material, grown for energy production or being organic waste which is slurried, suspended or dissolved in liquid, in a two-step anaerobic biochemical reactor configuration comprisi...

Sun, X.; Weissman, C., 1994: The use of analgesics and sedatives in critically ill patients: physicians' orders versus medications administered. To examine the difference between the prescribed and actually administered dose of analgesic and sedative drugs in critically ill patients. Prospective survey. University hospital surgical intensive care unit. One hundred fifty consecutive adult p...

Goldfinger Chris; Nelson Hans; Johnson Joel E., 1999: Holocene recurrence of Cascadia great earthquakes based on the turbidite event record. Eos, Transactions, American Geophysical Union 80(46, Suppl

Plag H.P.; Juettner H.U., 1996: Determination of three-dimensional Earth models using geodetic observations; problems and perspective. Eos, Transactions, American Geophysical Union 77(46, Suppl

Eisenhut, M.; Sharma, V.; Kawsar, M.; Balachandran, T., 2008: Knowledge of their children's HIV status in HIV-positive mothers attending a genitourinary medicine clinic in the UK. To determine whether HIV-infected mothers knew the HIV status of their children, enabling the offer of targeted testing of children at risk. All HIV-positive women attending the genitourinary medicine clinic at a district general hospital in the U...

Salama, M.; Sandine, W.E.; Giovannoni, S.J., 1990: Development and application of oligonucleotide probes for identification of Lactococcus lactis subsp. cremoris. Partial sequencing of the 16S rRNA molecule from Lactococcus strains showed that Lactococcus lactis var. cremoris strains had a unique base sequence in a hyper-variable stem and loop structure located 70 to 100 bases from the 5' terminus. Hyb...

Page, R.J.C., 1993: X-ray method for determination of the age of live badgers in the field. Mammalia 57(1): 123-126

Verghese, A.; Franzus, B.; Stout, R., 1988: Characterization of bronchoalveolar lavage cells and macrophage-derived chemoattractant activity in pancreatic elastase-induced emphysema in hamsters. Bronchoalveolar lavage (BAL) was performed 30 days after endotracheal saline (C) or pancreatic elastase (E) administration to hamsters. E animals had twice as many cells as C animals (7.04 +/- 0.07 vs. 6.69 +/- 0.05 log10 cells, p less than 0.0001...

Chan, G.L.; Holden, J.E.; Stoessl, A.J.; Samii, A.; Doudet, D.J.; Dobko, T.; Morrison, K.S.; Adam, M.; Schulzer, M.; Calne, D.B.; Ruth, T.J., 1999: Reproducibility studies with 11C-DTBZ, a monoamine vesicular transporter inhibitor in healthy human subjects. The reproducibility of (+-)-alpha-(11C) dihydrotetrabenazine (DTBZ) measures in PET was studied in 10 healthy human subjects, aged 22-76 y. Methods: The scan-to-scan variation of several measures used in PET data analysis was determined, including...

Sharkey, L.; Holycross, B.J.; Mccune, S.A.; Park, S.; Radin, M.J., 1996: Effect of ovariectomy on progression of heart failure in lean female SHHF/Mcc-fa-cp rats. FASEB Journal 10(3): A308