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Polyvinylpyrrolidone-Capped Silver Nanoparticles for Highly Sensitive and Selective Optical Fiber-Based Ammonium Sensor.

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Title: Polyvinylpyrrolidone-Capped Silver Nanoparticles for Highly Sensitive and Selective Optical Fiber-Based Ammonium Sensor.
Authors: Potdar, Revati P.1 (AUTHOR), Khollam, Yogesh B.2 (AUTHOR), Shaikh, Shoyebmohamad. F.3 (AUTHOR), More, Pravin S.1 (AUTHOR) pravin.more@iscm.ac.in, Rana, Abu ul Hassan S.4,5 (AUTHOR) pravin.more@iscm.ac.in
Source: Nanomaterials (2079-4991). Oct2022, Vol. 12 Issue 19, p3373. 13p.
Subjects: Optical fiber cladding, Silver nanoparticles, Ammonium ions, Surface plasmon resonance, Optical coatings, Polyols, Optical sensors, Povidone
Abstract: Herein, aqueous ammonium sensing characteristics of polyvinylpyrrolidone (PVP) capped silver nanoparticles (Ag-NPs) coated optical fiber-based sensors are presented. The PVP-capped Ag-NPs were prepared using cold and modified polyol synthesis methods. Aqueous ammonium detection was carried out by the surface plasmon resonance (SPR) effect observed in the Ag-NPs coated optical fiber system. The effect of cold and modified polyol synthesis methods on optical sensing performance was studied. The optical fiber cladding was modified with PVP-capped Ag-NPs according to the standard protocol for sensing investigation. The probe sensing response was analyzed for varying concentrations of ammonium ions on red, green, and blue LEDs. The sensor characteristics, viz., sensing response, repeatability, calibration curve, and ambient light effect, were investigated for PVP capped Ag-NPs coated optical fiber-based sensor. The PVP capped Ag-NPs synthesized via the polyol synthesis method showed a detection limit of 48.9 mM, 1.33 mV/M sensitivity, and an excellent linear relationship (R2 = 0.9992) between voltage and ammonium ion concentration in the range of 0.054–13.4 M concentration. On the other hand, PVP capped Ag-NPs synthesized using the cold synthesis method showed a detection limit of 159.4 mM, a sensitivity of 0.06 mV/M, and a poor linear relationship (R2 = 0.4588) between voltage and ammonium ion concentration in the range of 0.054–13.4 M concentration. The results indicate that the PVP-capped Ag-NPs synthesized using the polyol synthesis method exhibit enhanced ammonium ion sensing compared to the cold synthesis method. [ABSTRACT FROM AUTHOR]
Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Polyvinylpyrrolidone-Capped Silver Nanoparticles for Highly Sensitive and Selective Optical Fiber-Based Ammonium Sensor.
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  Data: <searchLink fieldCode="AR" term="%22Potdar%2C+Revati+P%2E%22">Potdar, Revati P.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Khollam%2C+Yogesh+B%2E%22">Khollam, Yogesh B.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shaikh%2C+Shoyebmohamad%2E+F%2E%22">Shaikh, Shoyebmohamad. F.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22More%2C+Pravin+S%2E%22">More, Pravin S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> pravin.more@iscm.ac.in</i><br /><searchLink fieldCode="AR" term="%22Rana%2C+Abu+ul+Hassan+S%2E%22">Rana, Abu ul Hassan S.</searchLink><relatesTo>4,5</relatesTo> (AUTHOR)<i> pravin.more@iscm.ac.in</i>
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  Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Oct2022, Vol. 12 Issue 19, p3373. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Optical+fiber+cladding%22">Optical fiber cladding</searchLink><br /><searchLink fieldCode="DE" term="%22Silver+nanoparticles%22">Silver nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Ammonium+ions%22">Ammonium ions</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+plasmon+resonance%22">Surface plasmon resonance</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+coatings%22">Optical coatings</searchLink><br /><searchLink fieldCode="DE" term="%22Polyols%22">Polyols</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+sensors%22">Optical sensors</searchLink><br /><searchLink fieldCode="DE" term="%22Povidone%22">Povidone</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Herein, aqueous ammonium sensing characteristics of polyvinylpyrrolidone (PVP) capped silver nanoparticles (Ag-NPs) coated optical fiber-based sensors are presented. The PVP-capped Ag-NPs were prepared using cold and modified polyol synthesis methods. Aqueous ammonium detection was carried out by the surface plasmon resonance (SPR) effect observed in the Ag-NPs coated optical fiber system. The effect of cold and modified polyol synthesis methods on optical sensing performance was studied. The optical fiber cladding was modified with PVP-capped Ag-NPs according to the standard protocol for sensing investigation. The probe sensing response was analyzed for varying concentrations of ammonium ions on red, green, and blue LEDs. The sensor characteristics, viz., sensing response, repeatability, calibration curve, and ambient light effect, were investigated for PVP capped Ag-NPs coated optical fiber-based sensor. The PVP capped Ag-NPs synthesized via the polyol synthesis method showed a detection limit of 48.9 mM, 1.33 mV/M sensitivity, and an excellent linear relationship (R2 = 0.9992) between voltage and ammonium ion concentration in the range of 0.054–13.4 M concentration. On the other hand, PVP capped Ag-NPs synthesized using the cold synthesis method showed a detection limit of 159.4 mM, a sensitivity of 0.06 mV/M, and a poor linear relationship (R2 = 0.4588) between voltage and ammonium ion concentration in the range of 0.054–13.4 M concentration. The results indicate that the PVP-capped Ag-NPs synthesized using the polyol synthesis method exhibit enhanced ammonium ion sensing compared to the cold synthesis method. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3390/nano12193373
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 13
        StartPage: 3373
    Subjects:
      – SubjectFull: Optical fiber cladding
        Type: general
      – SubjectFull: Silver nanoparticles
        Type: general
      – SubjectFull: Ammonium ions
        Type: general
      – SubjectFull: Surface plasmon resonance
        Type: general
      – SubjectFull: Optical coatings
        Type: general
      – SubjectFull: Polyols
        Type: general
      – SubjectFull: Optical sensors
        Type: general
      – SubjectFull: Povidone
        Type: general
    Titles:
      – TitleFull: Polyvinylpyrrolidone-Capped Silver Nanoparticles for Highly Sensitive and Selective Optical Fiber-Based Ammonium Sensor.
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            NameFull: Potdar, Revati P.
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              M: 10
              Text: Oct2022
              Type: published
              Y: 2022
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