João Pina

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Auxiliar Professor

University of Coimbra

Portugal

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About

João Pina is an Auxiliar Professor at the University of Coimbra, Portugal. His research focuses on photophysical characterization, the synthesis of nanocrystals, and the application of composite materials for environmental detection and remediation. Recent articles include work on amphiphilic benzothiadiazoles, metal halide perovskite nanocrystals, and fluorescent quantum dots for pollutant detection.

Recent Grants

Grant: Close

Chemistry Triggered by Infrared Vibrational Excitation: Developing a Powerful Tool for Highly-Selective Molecular Structure Manipulation

Open Date: 2018-07-01

Close Date: 2021-07-01

Grant: Close

Rational Design of High Efficiency and Stability Organic-Inorganic Hybrid White Light Emitters

Open Date: 2018-07-01

Close Date: 2021-06-01

Grant: Close

Harvesting and storage of solar energy

Open Date: 2016-10-01

Close Date: 2020-09-01

Grant: Close

Photochemical Control of Photoiniators and Photochromics

Open Date: 2011-04-01

Close Date: 2014-09-01

Articles (21)

Year:

2025

In the present work, the morphological, optical, and gas-sensing properties of La0.67Ca0.2Ba0.13Fe0.97M0.03O3 (M = Ti, Cr, and Mn) nano-powders prepared via the auto-combustion route, were investigated. TEM images prove the nanoscale particle size of all the samples. Optical studies confirm the semiconductor behavior of the studied materials. The response of the prepared nano-powders towards the presence of two gas-reducing agents (ethanol and acetone) was investigated. From the resistance ratio under air and gas, it was possible to determine the response to different gases and deduce that La0.67Ca0.2Ba0.13Fe0.97Ti0.03O3 presents the highest responses to ethanol and acetone. Likewise, we deduced that the prepared materials were able to detect low concentrations of ethanol and acetone gases.

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2024

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2024

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2024

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2024

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2024

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2024

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2024

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2024

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2024

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2023

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2022

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2022

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2021

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2021

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2021

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2021

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2021

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2020

Collaborators (18)

JULIA PEREZ-PRIETO

Full Prof.

University of Valencia

SPAIN

João Pina

Research Interests

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About

Recent Grants

Articles (21)

Synthesis, photophysical and spectroscopic characterization of amphiphilic D-A-π-A benzothiadiazoles

Particle Size Effect on Optical and Gas-Sensing Properties of La0.67Ca0.2Ba0.13Fe0.97M0.03O3 (M = Ti4+, Mn3+, and Cr3+) Compounds

Profiling the Interaction between Human Serum Albumin and Clinically Relevant HIV Reverse Transcriptase Inhibitors

Interaction between a water-soluble anionic porphyrin and human serum albumin unexpectedly stimulates the aggregation of the photosensitizer at the surface of the albumin

Synthesis, characterization, and sensitivity tests of La0.8Ba0.1Bi0.1FeO3 nanoparticles towards a few parts-per-billion of acetone gas

Acenaphthylene-Based Chromophores for Dye-Sensitized Solar Cells: Synthesis, Spectroscopic Properties, and Theoretical Calculations

Synthesis and characterization of fluorescent poly(α-cyclodextrin)/carbon quantum dots composite for efficient removal and detection of toluene and xylene from aqueous media

Carbon quantum dots-containing poly(β-cyclodextrin) for simultaneous removal and detection of metal ions from water

Engineering Metal Halide Perovskite Nanocrystals with BODIPY Dyes for Photosensitization and Photocatalytic Applications

Tuning Fluorescence and Singlet Oxygen Quantum Yields of Subporphyrazines by Axial Functionalization

Effect of Co Doping on the Physical Properties and Organic Pollutant Photodegradation Efficiency of ZnO Nanoparticles for Environmental Applications

Novel Oxygen- and Curcumin-Laden Ionic Liquid@Silica Nanocapsules for Enhanced Antimicrobial Photodynamic Therapy

Interaction of Two Commercial Azobenzene Food Dyes, Amaranth and New Coccine, with Human Serum Albumin: Biophysical Characterization

Bioimaging of Lysosomes with a BODIPY pH-Dependent Fluorescent Probe

Excited state deactivation mechanisms in Shikonin rationalized from its naphthoquinone parent structures

New 3-Ethynylaryl Coumarin-Based Dyes for DSSC Applications: Synthesis, Spectroscopic Properties, and Theoretical Calculations

Synthesis and characterization of aryl-substituted BODIPY dyes displaying distinct solvatochromic singlet oxygen photosensitization efficiencies

Transport and photophysical studies on porphyrin-containing sulfonated poly(etheretherketone) composite membranes

Phenomenological Understanding of Hematite Photoanode Performance

Novel fluorinated ring-fused chlorins as promising PDT agents against melanoma and esophagus cancer

Tacrine – benzothiazoles

Collaborators (18)

JULIA PEREZ-PRIETO

Dina Murtinho

Sergio Seixas de Melo

Carlos Serpa

Paulo Gordo

Laura Aitken

Estefanía Delgado Pinar

Paula Branco

Herminio C. de Sousa

Zohra Benzarti Ep Khalfallah

Nelson Pereira

Rui Brito

Danijela Rostohar

Efres Belmonte Reche

Susana P. G. Costa

Maria Manuela Marques Raposo

A. Jorge Parola

B. F. O. Costa

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