Synergy between Basic and Applied Research in Laser-Induced Breakdown Spectroscopy for Biochemical Analyses

A special issue of Chemosensors (ISSN 2227-9040).

Deadline for manuscript submissions: 30 November 2024 | Viewed by 1895

Special Issue Editor


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Guest Editor
Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires (CIFICEN), CONICET-UNCPBA, Campus Universitario, Tandil 7000, Argentina
Interests: laser-Induced breakdown spectroscopy; plasma diagnostics; spectral analysis; LIBS applications; MATLAB and python scripting; data analysis

Special Issue Information

Dear Colleagues,

Laser-induced breakdown spectroscopy (LIBS) is a well-established atomic spectroscopic technique that performs qualitative, semi-quantitative, and quantitative analyses of the elemental chemical composition of a wide variety of sample materials (gas, liquid, or solid). Nowadays, LIBS is a very active field of research worldwide with outstanding applications in a broad range of fields. Particularly, elemental analysis of biochemical samples (such as soil, vegetative matter, human bones, and geological samples) is very interesting in environmental science, agriculture, archaeology, forensics, and geology, among other fields. Furthermore, laboratory measurements are paving the way for the development of the LIBS technique in in-field analysis.

Simplicity and versatility are distinctive LIBS advantages that allow for the realization of rapid, simultaneous multi-elemental analysis with no need for sample treatment. Over the last decades, these features have been boosted by striking scientific and technological developments aimed at field-portable instruments. In addition, LIBS spectra contain rewarding information about the physical characteristics of plasma. This information, which can be recovered through a detailed analysis of the measured data, is very helpful to gather insights regarding complex plasma dynamics, such as the time evolution of species emission, self-absorption of the spectral lines, spatial inhomogeneity of the plasma plume, and matrix effects. A convenient exploitation of the mentioned issues, instead of their prevention, can fruitfully contribute to the improvement of LIBS performance. In fact, gaining a deep understanding of the physical processes involved in plasma behavior enables for the optimization of experiments and leads to a correct interpretation of the obtained results. Conversely, suitable experiments can be depicted to refine the models of plasma radiation.

This Special Issue, entitled “Synergy between Basic and Applied Research in Laser-Induced Breakdown Spectroscopy for Biochemical Analyses”, is devoted to manuscripts about the synergy between basic and applied LIBS research. The focus will be on works showing the benefits of combining these two complementary types of research initiatives so that performance is improved or enhanced in regard to single independent perspectives.

Dr. Diego M. Díaz Pace
Guest Editor

Manuscript Submission Information

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Keywords

  • LIBS
  • laser-induced breakdown spectroscopy
  • spectral analysis
  • plasma dynamics

Published Papers (1 paper)

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Research

11 pages, 1642 KiB  
Article
Rapid Assessment of Extractability of Macronutrients from Yerba Mate (Illex paraguariensis) Leaves Based on Laser-Induced Breakdown Spectroscopy
by Diego Díaz Pace, Juan Molina and Corina Iris Rodríguez
Chemosensors 2024, 12(2), 18; https://doi.org/10.3390/chemosensors12020018 - 25 Jan 2024
Viewed by 1576
Abstract
Leaves of yerba mate plant (Ilex paraguariensis) have a wealth of nutrients, ingested by people who drink them in the hot water infusion popularly known as mate. In the present work, the laser-induced breakdown spectroscopy (LIBS) technique was applied for the [...] Read more.
Leaves of yerba mate plant (Ilex paraguariensis) have a wealth of nutrients, ingested by people who drink them in the hot water infusion popularly known as mate. In the present work, the laser-induced breakdown spectroscopy (LIBS) technique was applied for the first time to analysis of the extractability of macronutrients, including Mg, Ca, Na, and K, in commercial samples of yerba mate. Powdered samples from leaves’ material were used to simulate the infusion process in the laboratory. To carry out LIBS analysis, the emission spectra were measured before and after the infusion from the samples prepared in pellets. The spectral data were processed and analyzed by a specially designed algorithm. A coefficient of extractability was calculated for each of the investigated macronutrients in the range 34–76%, showing a good correlation with the corresponding elemental concentrations leached into the water infusion, determined by Atomic Absorption Spectroscopy. The obtained results demonstrated the feasibility of our approach for the rapid analysis of extractable macronutrients present in yerba mate leaves. Full article
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