Laser induced breakdown spectroscopy and subsequent acoustic response during microplasma formation are employed to identify cancerous human breast tissues. The characteristic optical emissions identify Ca, Na, and Mg rich species in cancerous tissues compared to those of healthy ones. Furthermore, we show that the characteristic parameters of the microplasma, generated on the unhealthy tissues, are elevated. We report higher decibel audio signals emanating from laser induced microplasma and a subsequent audio blueshift for malignant tissues. The higher abundance of trace elements in cancerous tissues as well as higher plasma temperature and electron density in laser induced microplasma (leading to a stronger shockwave) intensify the acoustic signals.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/AO.55.008227 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A combination of gold nanoparticles and laser photobiomodulation to boost antioxidant defenses in the recovery of muscle injuries caused by Bothrops jararaca venom.
Lasers Med Sci
January 2025
Laboratory of Pathophysiology Experimental, Postgraduate Program in Health Sciences, Universidade do Extremo Sul Catarinense (UNESC), Criciúma, SC, Brazil.
Unlabelled: This study aimed to evaluate gold nanoparticles (GNPs) and photobiomodulation (PBM), associated with antibothropic serum (AS), to treat a muscle lesion induced by Bothrops jararaca venom.
Methods: 108 Swiss male mice were used, divided into nine groups (n = 12) with different combinations of treatments. Animals were inoculated with 250 µg of B.
Short and Mid-term Outcome of Radiofrequency Ablation without Concomitant Phlebectomy/Sclerotherapy for Tributary Varicose Veins.
Ann Vasc Dis
January 2025
Department of Cardiovascular Surgery, Shiga University of Medical Science, Otsu, Shiga, Japan.
Endovenous surgery in the treatment of varicose veins generally consists of laser or radiofrequency ablation (RFA) as endovenous thermal ablation (ETA) with a phlebectomy or foam sclerotherapy of tributary varicose veins to improve symptomatic or cosmetic problems. Nevertheless, the efficacy of their concomitant treatments is still controversial for a decade. In the guidelines of the Japanese Society of Phlebology, concomitant phlebectomy of tributary varicose veins with ETA is described that it is not recommended officially.
View Article and Find Full Text PDFAn Oxidative Stress Nanoamplifier to Enhance the Efficacy of Cisplatin in Head and Neck Cancer.
Angew Chem Int Ed Engl
January 2025
NCNST: National Center for Nanoscience and Technology, CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, No 11, Zhongguancun Beiyitiao, Haidian, 100190, Beijing, CHINA.
Cisplatin (CP) is a first-line platinum-based drug used for the treatment of head and neck cancer. However, tumor cells can diminish the therapeutic effects of CP through the detoxification system mediated by glutathione (GSH) and the nucleotide excision repair (NER) pathway. Herein, we present a light-activable and pH-responsive oxidative stress nanoamplifier (FPLC@IR OSNA), comprising an amphiphilic compound (FPLC) with Fmoc-lysine acting as a connector between a nitroimidazole derivative and a pH-responsive cinnamaldehyde (CA) derivative, loaded with photosensitizer IR780.
View Article and Find Full Text PDFIn living organisms, the natural motion caused by heartbeat, breathing, or muscle movements leads to the deformation of tissue caused by translation and stretching of the tissue structure. This effect results in the displacement or deformation of the plane of observation for intravital microscopy and causes motion-induced aberrations of the resulting image data. This, in turn, places severe limitations on the time during which specific events can be observed in intravital imaging experiments.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!