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Cited by 112Electrochemical sensors and biosensorsElectrochemical Analysis and ApplicationsElectrocatalysts for Energy Conversion

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Facile sonochemical synthesis of perovskite-type SrTiO3 nanocubes with reduced graphene oxide nanocatalyst for an enhanced electrochemical detection of α-amino acid (tryptophan)

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Govindasamy, Mani, Wang, Sea-Fue, Pan, Wei Chih, Subramanian, Bowya, Ramalingam, R. Jothi, Al-lohedan, Hamad·2019·Ultrasonics Sonochemistry
DOI 10.1016/j.ultsonch.2019.04.004
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Abstract

In this paper, perovskite-type SrTiO3 nanocubes decorated reduced graphene oxide is synthesized by sonochemical method. The as-synthesized SrTiO3@RGO nanocomposite was confirmed by XRD, TEM, SEM, elemental mapping and electrochemical technique. Furthermore, surface morphological and X-ray diffraction studies revealed the formation and high loading of SrTiO3 nanocubes on reduced graphene oxide matrix. The SrTiO3@RGO nanocomposite modified electrode shows an excellent electrochemical detection towards of amino acid (tryptophan). The developed sensor was showed a wide linear range from 30 nM to 917.3 µM and detection limit is 7.15 nM. Furthermore, the sensitivity was calculated to be 9.11 µA µM−1 cm2. In addition, the proposed modified sensor is exhibited good selectivity, stability, reproducibility and repeatability. The SrTiO3@RGO catalyst modified electrode was successfully applied to tryptophan analysis in biological samples.

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  • Govindasamy et al. synthesized SrTiO3 nanotubes modified with rGO, achieving a detection limit of 7.15 nM for tryptophan.

    “Govindasamy et al. [188] synthesized SrTiO 3 nanotubes modified with rGO, achieving a detection limit of 7.15 nM for tryptophan (Figure 12D).”

    From Design Strategies and Emerging Applications of Perovskite-Based Sensors (2025) · cites this paper as [188]

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Metadata

Authors
Govindasamy, M., Wang, S.-F., Pan, W. C., Subramanian, B., Ramalingam, R. J., & Al-lohedan, H.
Affiliations
National Taipei University of Technology (TW)
Corresponding author
Wang, Sea-Fue
ORCID
Venue
Ultrasonics Sonochemistry
Publisher
Elsevier BV
Published
2019-09
Volume
56
Pages
193-199
ISSN
1350-4177 (ISSN-L)
DOI
10.1016/j.ultsonch.2019.04.004
OpenAlex
W2939565493
Cited by
112
References
0
Citations by year
2026: 1 · 2025: 12 · 2024: 5 · 2023: 14 · 2022: 17 · 2021: 13 · 2020: 34 · 2019: 16
FWCI
7.19
Type
journal article
Language
en
Open access
Licence
Locations
  • Ultrasonics Sonochemistry (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • National Taipei University of Technology
  • King Saud University
Topics
  • Physical Sciences › Chemistry › Analytical Chemistry › Electrochemical sensors and biosensors
  • Physical Sciences › Chemistry › Electrochemistry › Electrochemical Analysis and Applications
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
Keywords
perovskite, reduced graphene oxide, nanocomposites, electrochemical sensor, tryptophan detection, amino acid sensing, modified electrode, sonochemical synthesis, biological specimen

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