Abstract

The spectroscopic behavior of mono-zinc ethane-bridged bis-porphyrin (ZnH2Po2) was studied as a solidfilm upon deposition from a chloroform solution by means of the spin-coating method. The angular speedused during the deposition strongly influences the conformational arrangement of bis-porphyrin. A preferentialarrangement as the anti- (opened) conformer was obtained when high speeds were used. Theobtained thin film was successfully employed to detect ammonia and acetone as the relevant analytes inaqueous solutions. This was a result of the supramolecular interaction between each of these two compoundsused and the bis-porphyrin active layer, inducing the corresponding conformational switchingeasily detectable by UV-vis absorption spectroscopy. The spectral variations of ZnH2Po2 were evident inthe range of concentrations between 1 ppm and 20 ppm for both the analytes. This is particular importantin light of the fact that ammonia and acetone concentrations are changed within this limit throughoutthe menstrual women's cycle, reaching their maximum during the fertility days. Hence, ZnH2Po2 canbe effectively applied as a potential active layer for medical devices to monitor the hormonal variationsduring the women's menstrual cycle.Additionally, the reversible sensing mechanism with reusable up to 8 cycles, makes this ZnH2Po2 basedactive layer practically efficient

Autore Pugliese

• Santino Angelo

Tutti gli autori

• Buccolieri A.; Manno D.; Serra A.; Santino A.; Hasan M.; Borovkov V.; Giancane G.

Titolo volume/Rivista

Sensors and actuators. B, Chemical

Anno di pubblicazione

2017

ISSN

0925-4005

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

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Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

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