As new laser devices continue to emerge, it becomes increasingly important for the clinical dermatologist to understand the basic principles behind their operation. A fundamental understanding of how lasers interact with tissue will enable the physician to choose the most appropriate laser for a given clinical situation. Although the physical laws guiding laser design are vastly complex, the fundamental principles of laser-tissue interaction can be summarized as they are applicable to the clinician.
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http://dx.doi.org/10.1016/j.clindermatol.2005.10.019 | DOI Listing |
J Biophotonics
December 2024
Nanoparticle Systems Engineering Laboratory, Department of Mechanical and Process Engineering (D-MAVT), Institute of Energy and Process Engineering (IEPE), ETH Zurich, Zurich, Switzerland.
Fluorescence-guided surgeries, including tumor resection and tissue soldering, are advancing the frontiers of surgical precision by offering enhanced control that minimizes tissue damage, improving recovery and outcomes. However, integrating fluorescence visualization with real-time temperature monitoring remains a challenge, limiting broader clinical use. We address this issue with an augmented reality (AR) visor that combines nanomaterial excitation, fluorescence detection, and temperature monitoring.
View Article and Find Full Text PDFAdv Sci (Weinh)
November 2024
Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering (IEPE), Department of Mechanical and Process Engineering (D-MAVT), ETH Zurich, Sonneggstrasse 3, Zurich, 8092, Switzerland.
Minimally invasive surgical techniques, including endoscopic and robotic procedures, continue to revolutionize patient care, for their ability to minimize surgical trauma, thus promoting faster recovery and reduced hospital stays. Yet, the suturing of soft tissues ensuring damage-free tissue bonding during these procedures remains challenging due to missing haptics and the fulcrum effect. Laser tissue soldering has potential in overcoming these issues, offering atraumatic seamless tissue fusion.
View Article and Find Full Text PDFEur Urol Focus
November 2024
Division of Experimental Oncology/Unit of Urology, Urological Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy; University Vita-Salute San Raffaele, Milan, Italy; Young Academic Urologists Endourology & Urolithiasis Working Group, European Association of Urology, Arnhem, The Netherlands; Progressive Endourological Association for Research and Leading Solutions (PEARLS), Paris, France. Electronic address:
Lasers Surg Med
September 2024
Department of Plastic Surgery, School of Medicine, Tokai University, Kanagawa, Japan.
Objectives: This study aimed to evaluate the efficacy and safety of nanosecond laser treatment of pigmented lesions in silico using a model of melanosome disruption threshold fluence (MDTF) based on skin optical properties.
Methods: Particle size analysis and scanning electron microscopy were performed to determine the threshold fluence for melanosome disruption using a nanosecond laser. By inputting the obtained threshold fluence into the MDTF model and considering the variability in skin optical properties, irradiation parameters were calculated and compared with the results from clinical studies.
Photobiomodul Photomed Laser Surg
September 2024
Department of Prosthodontics and Digital Technology, Stony Brook University, Stony Brook, New York, USA.
The purpose of this study was to demonstrate heat transfer within oral soft tissues using different lasers under the effect of local anesthetics (LA). Bovine tongue slices were placed in between two glass slides and at a distance from a thermographic camera. In total, 2-cm-long 240 incisions were made along the surface of the tissue parallel to glass slides and the camera capture field.
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