While laser-induced breakdown spectroscopy (LIBS) has been in use for decades, only within the last two years has technology progressed to the point of enabling true handheld, self-contained instruments. Several instruments are now commercially available with a range of capabilities and features. In this paper, the SciAps Z-500 handheld LIBS instrument functionality and sub-systems are reviewed. Several assayed geochemical sample sets, including igneous rocks and soils, are investigated. Calibration data are presented for multiple elements of interest along with examples of elemental mapping in heterogeneous samples. Sample preparation and the data collection method from multiple locations and data analysis are discussed.
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http://dx.doi.org/10.1177/0003702816638247 | DOI Listing |
Int J Mol Med
March 2025
Department of Ophthalmology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China.
Retinal pigment epithelial (RPE) cells undergoing epithelial‑mesenchymal transition (EMT) are a key factor in promoting the progression of subretinal fibrosis. The klotho protein and gene exert anti‑fibrotic effects in multiple fibrotic diseases. However, the mechanisms involved in the role of klotho are unclear in subretinal fibrosis.
View Article and Find Full Text PDFAnal Chim Acta
January 2025
Key Laboratory of High Performance Manufacturing for Aero Engine (MIIT), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, China. Electronic address:
Background: Fast and accurate classification of steel can effectively improve industrial production efficiency. In recent years, the use of laser-induced breakdown spectroscopy (LIBS) in conjunction with other techniques for material classification has been developing. Plasma Acoustic Emission Signal (PAES) is a type of modal information separate from spectra that is detected using LIBS, and it can reflect some of the sample's physicochemical information.
View Article and Find Full Text PDFBMC Cancer
January 2025
Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, Kyiv, 01601, Ukraine.
Background: nowadays, the photoacoustic imaging is in the mainstream of cancer theranostics. In this study the nanoparticles with previously proven photoacoustic imaging properties, i.e.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
January 2025
Materials Industrial Research and Technology Center S.A. - Environmental Lab, 76thKm of Athens-Lamia National Road, 32009, Schimatari, Greece.
The assessment of soil contamination by heavy metals is of high importance due to its impact on the environment and human health. Standard high-sensitivity spectroscopic techniques for this task such as atomic absorption spectrometry (AAS) and inductively coupled plasma spectrometry (ICP-OES and ICP-MS) are effective but time-consuming and costly, mainly due to sample preparation and lab consumables, respectively. In the present study, a laser-based spectroscopic approach is proposed, laser-induced breakdown spectroscopy (LIBS), which, combined with machine learning (ML), can provide a tool for rapid assessment of soil contamination by heavy metals.
View Article and Find Full Text PDFSmall
January 2025
College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan, 030024, China.
Electrochemical Li extraction technology is a highly promising approach for Li extraction from salt lakes. To enhance its practical application, it is crucial to elucidate the ion/electron transfer mechanism under diverse process conditions particularly different electron fluxes. Different migration intermediate states demonstrate the distinct ion migration mechanisms inside the LiMnO lattice at different electron fluxes.
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