default author photo

Carlos Oliveira

Federal University of Ceara

Rua Papi Júnior 1225 - Rodolfo Teófilo

Fortaleza, 60431970

Portugal

  • Federal University of Ceara

SCHOLARLY PAPERS

3

DOWNLOADS

80

TOTAL CITATIONS

0

Scholarly Papers (3)

Actions:
Email selected abstracts
1.

Multifunctional Sensing of Cobalt Ions and Methylcobalamin Using Doped Carbon Quantum Dots

Number of pages: 41 Posted: 27 May 2025
Carlos Oliveira, Francisco Eduardo Holanda Lima, Gisele Lopes, Wladiana O. Matos, Renato A. Antunes, Thiago Alves Moura, Alexandre Rocha Paschoal, Manoel Neto, Carlos Lenz, Hernandes Faustino de Carvalho, Rafael Freire, Ralph Santos-Oliveira, P. B. A. Fechine and Samuel Carneiro
Federal University of Ceara, Federal University of Ceara, Federal University of Ceara, Federal University of Ceara, Federal University of ABC (UFABC), Federal University of Ceara, Universidade Federal do Ceara, Federal University of Ceara, Federal University of Ceara, affiliation not provided to SSRN, Universidad Central de Chile, affiliation not provided to SSRN, Federal University of Ceara and Federal University of Ceara
Downloads 42 (1,157,785)

Abstract:

Loading...

Carbon Quantum Dots, fluorescence, Linear Discriminant Analysis, Methylcobala-min, Spectroscopy.

2.

Nitrogen and sulfur-doped Carbon Quantum Dots as fluorescent probe for inorganic arsenic sensing in water and seaweed samples

Number of pages: 38 Posted: 28 Jan 2026
Francisco Eduardo Holanda Lima, Carlos Oliveira, André Ferreira, Elayne de Carvalho, Thiago Alves Moura, Alexandre Rocha Paschoal, Renato A. Antunes, Manoel Neto, Carlos Lenz, Hernandes Faustino de Carvalho, Rafael Freire, P. B. A. Fechine, Francisco L.F. da Silva, Samuel Carneiro and Wladiana O. Matos
Federal University of Ceara, Federal University of Ceara, Federal University of Ceara, Federal University of Ceara, Federal University of Ceara, Universidade Federal do Ceara, Federal University of ABC (UFABC), Federal University of Ceara, Federal University of Ceara, affiliation not provided to SSRN, Universidad Central de Chile, Federal University of Ceara, State University of Ceara, Federal University of Ceara and Federal University of Ceara
Downloads 20 (1,470,786)

Abstract:

Loading...

Arsenic, Carbon Quantum Dots, Nanomaterials, Fluorescence.

3.

Fluorescent nanocomposite based on Carbon Quantum Dots for the quantification of permanganate ions in aquatic environments

Number of pages: 27 Posted: 16 Apr 2026
Ana Stephani Silva de Lima, Elayne de Carvalho, Carlos Oliveira, João Paulo de Sousa Ferreira, Renato A. Antunes, Thiago Alves Moura, Alexandre Rocha Paschoal, Juan Símon Rodríguez Hernández, Carlos W. A. Paschoal, Alejandro Pedro Ayala, Rafael Freire, P. B. A. Fechine and Samuel Carneiro
Federal University of Ceara, Federal University of Ceara, Federal University of Ceara, Federal University of Ceara, Federal University of ABC (UFABC), Federal University of Ceara, Universidade Federal do Ceara, Universidade Federal do Ceara, Federal University of Ceara, Federal University of Ceara, Universidad Central de Chile, Federal University of Ceara and Federal University of Ceara
Downloads 18 (1,509,872)

Abstract:

Loading...

Nanoparticles, Permanganate, Sensing, Fluorescence, Tilapia nurseries