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Cited by 40Advanced biosensing and bioanalysis techniquesMolecular Sensors and Ion DetectionMagnetic Properties and Synthesis of Ferrites

The DOI matches its Crossref record; 60 of the 60 references it cites were found in a registry or an index.

Spinel Cobalt Ferrite Nanoparticles for Sensing Phosphate Ions in Aqueous Media and Biological Samples

Ratkovski, Gabriela P., do Nascimento, Kamila T. O., Pedro, Graciela C., Ratkovski, Danilo R., Gorza, Filipe D. S., da Silva, Romário J., Maciel, Bruna G., Mojica-Sánchez, Lizeth C., de Melo, Celso P.·2020·Langmuir
DOI 10.1021/acs.langmuir.9b02901
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Abstract

Phosphate ions perform a variety of functions in metabolic processes and are essential for all living organisms. The determination of the concentration of phosphate ions is useful in clinical diagnosis of various diseases as an inadequate phosphate level could lead to many health problems. In the search for a cost-effective method of fast monitoring, we investigated the use of cobalt ferrite nanoparticles (CoFeNPs) in the selective recognition of phosphate ions dissolved in aqueous media and more complex samples, such as human blood serum. We prepared these NPs by a chemical coprecipitation route and subjected them to annealing at 600 °C for 1 h. The successful formation of the NPs was confirmed by Fourier transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy, and hysteresis loop measurements. The NPs exhibited a ferrimagnetic behavior, a spinel-type crystalline structure, and hexagonal shape in the nanoscale range. We demonstrated that CoFeNPs containing immobilized fluorescent-labeled single-chain DNA (ssDNA*) probes can be applied for the fast selective detection of phosphate ions dissolved in a liquid medium. We have explored the fact that phosphate groups can displace ssDNA* probes attached to the nanoparticles, therefore causing a perceptible change in the fluorescence signal of the supernatant liquid. This detection method has been tested for the sensing of phosphate ions present both in aqueous solutions and in biological samples, with excellent selectivity and a low limit of detection (∼1.75 nM).

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Crossref · 10.1021/acs.langmuir.9b02901

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Citations

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Research works printed but not linked: 3

  1. Adams, J. G. Emergency Medicine; Elsevier Health Sciences, 2018; p 1416.
  2. Shahjuee T., 2017, J. Ultrafine Grained Nanostruct. Mater., 50, 105
  3. Wan Azelee I., 2014, Indian J. Mar. Sci., 43, 372

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Metadata

Authors
Ratkovski, G. P., do Nascimento, K. T. O., Pedro, G. C., Ratkovski, D. R., Gorza, F. D. S., da Silva, R. J., Maciel, B. G., Mojica-Sánchez, L. C., & de Melo, C. P.
Affiliations
Universidade Federal de Pernambuco (BR)
Corresponding author
de Melo, Celso P.
ORCID
Venue
Langmuir
Publisher
American Chemical Society (ACS)
Published
2020-03-02
Volume
36
Issue
11
Pages
2920-2929
ISSN
  • 0743-7463 (ISSN-L)
  • 1520-5827
DOI
10.1021/acs.langmuir.9b02901
OpenAlex
W3009475981
Cited by
40
References
60
Citations by year
2026: 5 · 2025: 7 · 2024: 9 · 2022: 6 · 2021: 11 · 2020: 2
FWCI
1.54
Type
journal article
Language
en
Open access
closed
Licence
Locations
  • Langmuir (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Funda??o de Amparo ? Ci?ncia e Tecnologia do Estado de Pernambuco
  • Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico
  • Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior
  • Funda??o Nacional de Sa?de
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Advanced biosensing and bioanalysis techniques
  • Physical Sciences › Chemistry › Spectroscopy › Molecular Sensors and Ion Detection
  • Physical Sciences › Materials Science › Materials Chemistry › Magnetic Properties and Synthesis of Ferrites
Keywords
cobalt ferrite nanoparticles, phosphate ion detection, fluorescent DNA probes, spinel ferrite, chemical coprecipitation, annealing, fluorescence sensing, human serum, aqueous media, ferrimagnetic nanoparticles

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CoChat. (2026). Citation check: Spinel Cobalt Ferrite Nanoparticles for Sensing Phosphate Ions in Aqueous Media and Biological Samples. https://app.cochat.ai/papers/10.1021/acs.langmuir.9b02901
The paper
Ratkovski, G. P., do Nascimento, K. T. O., Pedro, G. C., Ratkovski, D. R., Gorza, F. D. S., da Silva, R. J., Maciel, B. G., Mojica-Sánchez, L. C., & de Melo, C. P. (2020). Spinel Cobalt Ferrite Nanoparticles for Sensing Phosphate Ions in Aqueous Media and Biological Samples. Langmuir. https://doi.org/10.1021/acs.langmuir.9b02901