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Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Medicine and Health Sciences

Technological University Dublin

Series

2019

Spectroscopy

Articles 1 - 2 of 2

Full-Text Articles in Life Sciences

Nanostructured Materials For Food Applications: Spectroscopy, Microscopy And Physical Properties, Shubham Sharma, Swana Jaiswal, Brendan Duffy, Amit Jaiswal Jan 2019

Nanostructured Materials For Food Applications: Spectroscopy, Microscopy And Physical Properties, Shubham Sharma, Swana Jaiswal, Brendan Duffy, Amit Jaiswal

Articles

Nanotechnology deals with the matter of atomic or molecular scale. Other factors that define the character of a nanoparticle are its physical and chemical properties, such as surface area, surface charge, hydrophobicity of the surface, the thermal stability of the nanoparticle, and its antimicrobial activity. A nanoparticle is usually characterized by using microscopic and spectroscopic techniques. Microscopic techniques are used to characterize the size, shape, and location of the nanoparticle by producing an image of the individual nanoparticle. Several techniques, such as scanning electron microscopy (SEM), transmission electron microscopy/high resolution transmission electron microscopy (TEM/HRTEM), atomic force microscopy (AFM) and scanning …


Laser-Induced Breakdown Spectroscopy For Food Authentication, Maria Markiewicz-Keszycka, Raquel Cama-Moncunill, Maria Piedad Casado-Gavalda, Carl Sullivan, P. J. Cullen Jan 2019

Laser-Induced Breakdown Spectroscopy For Food Authentication, Maria Markiewicz-Keszycka, Raquel Cama-Moncunill, Maria Piedad Casado-Gavalda, Carl Sullivan, P. J. Cullen

Articles

With the globalisation of food markets, food authentication has become a significant concern worldwide to ensure food safety and to avoid origin and quality fraud. A multi-elemental fingerprint is a powerful tool for detection of adulterants and geographical origin of foods. Laser-induced breakdown spectroscopy (LIBS) is a promising technique that can provide a mineral fingerprint of food products. LIBS allows a rapid, high-throughput, micro-destructive and multi-elemental analysis of a wide range of samples type. It has already been demonstrated by several authors that LIBS can be successfully used for food authentication. Although LIBS shows excellent potential for at-line or portable …