Fabrication of smart chemical sensors based on transition-doped-semiconductor nanostructure materials with µ-chips.

Transition metal doped semiconductor nanostructure materials (Sb2O3 doped ZnO microflowers, MFs) are deposited onto tiny µ-chip (surface area, ∼0.02217 cm(2)) to fabricate a smart chemical sensor for toxic ethanol in phosphate buffer solution (0.1 M PBS). The fabricated chemi-sensor is also exhibite...

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Autores principales:	Mohammed M Rahman, Sher Bahadar Khan, Abdullah M Asiri
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b1ed3b92264742d0860396909bea3958
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spelling	oai:doaj.org-article:b1ed3b92264742d0860396909bea39582021-11-18T08:37:56ZFabrication of smart chemical sensors based on transition-doped-semiconductor nanostructure materials with µ-chips.1932-620310.1371/journal.pone.0085036https://doaj.org/article/b1ed3b92264742d0860396909bea39582014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24454785/?tool=EBIhttps://doaj.org/toc/1932-6203Transition metal doped semiconductor nanostructure materials (Sb2O3 doped ZnO microflowers, MFs) are deposited onto tiny µ-chip (surface area, ∼0.02217 cm(2)) to fabricate a smart chemical sensor for toxic ethanol in phosphate buffer solution (0.1 M PBS). The fabricated chemi-sensor is also exhibited higher sensitivity, large-dynamic concentration ranges, long-term stability, and improved electrochemical performances towards ethanol. The calibration plot is linear (r(2) = 0.9989) over the large ethanol concentration ranges (0.17 mM to 0.85 M). The sensitivity and detection limit is ∼5.845 µAcm(-2)mM(-1) and ∼0.11±0.02 mM (signal-to-noise ratio, at a SNR of 3) respectively. Here, doped MFs are prepared by a wet-chemical process using reducing agents in alkaline medium, which characterized by UV/vis., FT-IR, Raman, X-ray photoelectron spectroscopy (XPS), powder X-ray diffraction (XRD), and field-emission scanning electron microscopy (FE-SEM) etc. The fabricated ethanol chemical sensor using Sb2O3-ZnO MFs is simple, reliable, low-sample volume (<70.0 µL), easy of integration, high sensitivity, and excellent stability for the fabrication of efficient I-V sensors on μ-chips.Mohammed M RahmanSher Bahadar KhanAbdullah M AsiriPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 1, p e85036 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mohammed M Rahman Sher Bahadar Khan Abdullah M Asiri Fabrication of smart chemical sensors based on transition-doped-semiconductor nanostructure materials with µ-chips.
description	Transition metal doped semiconductor nanostructure materials (Sb2O3 doped ZnO microflowers, MFs) are deposited onto tiny µ-chip (surface area, ∼0.02217 cm(2)) to fabricate a smart chemical sensor for toxic ethanol in phosphate buffer solution (0.1 M PBS). The fabricated chemi-sensor is also exhibited higher sensitivity, large-dynamic concentration ranges, long-term stability, and improved electrochemical performances towards ethanol. The calibration plot is linear (r(2) = 0.9989) over the large ethanol concentration ranges (0.17 mM to 0.85 M). The sensitivity and detection limit is ∼5.845 µAcm(-2)mM(-1) and ∼0.11±0.02 mM (signal-to-noise ratio, at a SNR of 3) respectively. Here, doped MFs are prepared by a wet-chemical process using reducing agents in alkaline medium, which characterized by UV/vis., FT-IR, Raman, X-ray photoelectron spectroscopy (XPS), powder X-ray diffraction (XRD), and field-emission scanning electron microscopy (FE-SEM) etc. The fabricated ethanol chemical sensor using Sb2O3-ZnO MFs is simple, reliable, low-sample volume (<70.0 µL), easy of integration, high sensitivity, and excellent stability for the fabrication of efficient I-V sensors on μ-chips.
format	article
author	Mohammed M Rahman Sher Bahadar Khan Abdullah M Asiri
author_facet	Mohammed M Rahman Sher Bahadar Khan Abdullah M Asiri
author_sort	Mohammed M Rahman
title	Fabrication of smart chemical sensors based on transition-doped-semiconductor nanostructure materials with µ-chips.
title_short	Fabrication of smart chemical sensors based on transition-doped-semiconductor nanostructure materials with µ-chips.
title_full	Fabrication of smart chemical sensors based on transition-doped-semiconductor nanostructure materials with µ-chips.
title_fullStr	Fabrication of smart chemical sensors based on transition-doped-semiconductor nanostructure materials with µ-chips.
title_full_unstemmed	Fabrication of smart chemical sensors based on transition-doped-semiconductor nanostructure materials with µ-chips.
title_sort	fabrication of smart chemical sensors based on transition-doped-semiconductor nanostructure materials with µ-chips.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/b1ed3b92264742d0860396909bea3958
work_keys_str_mv	AT mohammedmrahman fabricationofsmartchemicalsensorsbasedontransitiondopedsemiconductornanostructurematerialswithμchips AT sherbahadarkhan fabricationofsmartchemicalsensorsbasedontransitiondopedsemiconductornanostructurematerialswithμchips AT abdullahmasiri fabricationofsmartchemicalsensorsbasedontransitiondopedsemiconductornanostructurematerialswithμchips
_version_	1718421522629001216

Fabrication of smart chemical sensors based on transition-doped-semiconductor nanostructure materials with µ-chips.

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