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Silver-chitosan nan...
Silver-chitosan nanobiocomposite as urea biosensor
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- Ali, Akbar (author)
- Riphah Int University, Pakistan
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- Fakhar-E-Alam, Muhammad (author)
- GC University, Pakistan
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- Abbas, Najeeb (author)
- GC University, Pakistan
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- Wazir, Zafar (author)
- Riphah Int University, Pakistan
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- Willander, Magnus (author)
- Linköpings universitet,Fysik och elektroteknik,Tekniska högskolan
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- Tufail, Muhammad (author)
- Riphah Int University, Pakistan
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- Atif, M. (author)
- King Saud University, Saudi Arabia; National Institute Laser and Optron, Pakistan
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(creator_code:org_t)
- NATL INST OPTOELECTRONICS, 2014
- 2014
- English.
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In: Optoelectronics and Advanced Materials Rapid Communications. - : NATL INST OPTOELECTRONICS. - 1842-6573 .- 2065-3824. ; 8:11-12, s. 1238-1242
- Related links:
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https://urn.kb.se/re...
Abstract
Subject headings
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- Silver nanoparticles (Ag NPs) were synthesized by aqueous chemical growth technique. The above mentioned synthesized materials were characterized by applying scanning electron microscope (SEM) and X-ray diffraction for confirmation of morphological analysis, compositional purity, and crystalline property and emission characteristics as well. In order to fabricate the urea biosensor (potentiometric), a solution of deionized water and chitosan was prepared having Ag NPs. The said solution was dropped on the glass fiber filter having diameter of 2 cm. A wire of copper having thickness of approximately 500 pm was used for the voltage signal to pull out from the said working nanoparticles (NPs). To improve the strength, sensitivity and the quality of the potentiometric urea biosensor, a specific functional surface of Ag NPs was attained by electrostatic restrained of an enzyme (urease) onto the chitosan-Ag (a nanobiocomposite). The potentiometric reaction was measured via electrochemical detection technique. The potentiometric urea biosensor illustrates significant sensibility at room temperature with approximate to 42 mV as per span. Furthermore, the said biosensor showed an appropriate stable response within 7 sec.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- Ag nanoparticles (Ag NPs); Nanobiocomposite; Urea biosensor; Scanning electron microscope (SEM); X-ray diffraction
Publication and Content Type
- ref (subject category)
- art (subject category)
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