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The study of the interaction between laser and brain tissue has important theoretical and practical significance for brain imaging. A two-dimensional simulation model that studies the propagation of light and heat transfer in brain tissue…

Medical Physics · Physics 2020-09-30 Xianlin Song , Ao Teng , Jianshuang Wei , Lingfang Song

Heat generated from plasmonic nanoparticles can be utilized in plasmonic photothermal therapy. A combination of near-infrared laser and metallic nanoparticles are compelling for the treatment of brain cancer, due to their efficient…

Inelastic electron tunneling and surface-enhanced optical spectroscopies at the molecular scale require cryogenic local temperatures even under illumination - conditions that are challenging to achieve with plasmonically resonant metallic…

Mesoscale and Nanoscale Physics · Physics 2017-04-05 Pavlo Zolotavin , Alessandro Alabastri , Peter Nordlander , Douglas Natelson

Transcranial photobiomodulation is an optical method for non-invasive brain stimulation. The method projects red and near-infrared light through the scalp within 600-1100 nm and low energy within the 1-20 J/cm2 range. Recent studies have…

Numerical Analysis · Mathematics 2022-12-12 Faezeh Ibrahimi , Mehdi Delrobaei

Safety assessment of patients with one-dimensionally structured passive implants, like cranial meshes or stents, exposed to low or medium frequency magnetic fields, like those generated in magnetic resonance imaging or magnetic…

Computational Engineering, Finance, and Science · Computer Science 2025-08-14 Alessandro Arduino , Oriano Bottauscio , Denise Grappein , Stefano Scialó , Fabio Vicini , Umberto Zanovello , Luca Zilberti

Infrared thermography has gained interest as a tool for non-contact measurement of blood circulation and skin blood flow due to cardiac activity. Partiularly, blood vessels on the surface, such as on the back of the hand, are suited for…

Medical Physics · Physics 2026-02-17 Nanami Kotani , Kuniharu Sakurada , Jiayi Xu , Masahiko Inami , Yasuaki Monnai

Intracorporeal needle-based therapeutic ultrasound (NBTU) is a minimally invasive option for intervening in malignant brain tumors, commonly used in thermal ablation procedures. This technique is suitable for both primary and metastatic…

Infrared neural stimulation (INS) pulses at water-absorbed mid-IR wavelengths could provide a non-invasive and safe modality for stimulating peripheral and cranial nerves and central nervous system neurons. The excitation mechanism…

Neurons and Cognition · Quantitative Biology 2012-01-24 Nairouz Farah , Inbar Brosh , Christopher R. Butson , Shy Shoham

Extensive research has been carried out for at least 50 years to understand the mechanical properties of brain tissue in order to understand the mechanisms of traumatic brain injury (TBI). The observed large variability in experimental…

Medical Physics · Physics 2013-03-04 Badar Rashid , Michel Destrade , Michael Gilchrist

The efficiency of deep machine learning for automatic delineation of tumor areas has been demonstrated for intraoperative neuronavigation using active IR-mapping with the use of the cold test. The proposed approach employs a matrix…

Computer Vision and Pattern Recognition · Computer Science 2015-12-23 A. V. Makarenko , M. G. Volovik

There have been suggestions that heat caused by cerebral metabolic activity may constrain mammalian brain evolution, architecture, and function. This article investigates physical limits on brain wiring and corresponding changes in brain…

Neurons and Cognition · Quantitative Biology 2024-04-23 Jan Karbowski

The temperature distribution within cells, especially the debates on mitochondrial temperature, has recently attracted widespread attention. Some studies have claimed that the temperature of mitochondria can reach up to 50-53 degrees…

Biological Physics · Physics 2025-06-03 Tong Zhang , Tian-Tian Li , Jing-Ru Wang , Yu-Wen Zhang , Chao Sun , Zheng Huang , Jing-Juan Xu , Bin Kang

We present highly resolved measurements of the near-wall temperature field in thermally driven convection at a rough surface. Our measurements have been undertaken in a very large experimental facility called the "Barrel of Ilmenau". They…

Fluid Dynamics · Physics 2018-04-17 Ronald du Puits , Alice Loesch , Julien Salort , Francesca Chillà

We investigate the permeability of lipid membranes for fluorescence dyes and ions. We find that permeability reaches a maximum close to the chain melting transition of the membranes. Close to transitions, fluctuations in area and…

Hyperthermia (HT) in combination with radio- and/or chemotherapy has become an accepted cancer treatment for distinct solid tumour entities. In HT, tumour tissue is exogenously heated to temperatures between 39 and 43 $^\circ$C for 60…

This paper proposes a method to regulate the tissue temperature during laser surgery by robotically controlling the laser focus. Laser-tissue interactions are generally considered hard to control due to the inherent inhomogeneity of…

Robotics · Computer Science 2023-04-20 Nicholas Pacheco , Yash Garje , Aakash Rohra , Loris Fichera

One of the ways natural and synthetic systems regulate temperature is via circulating fluids through vasculatures embedded within their bodies. Because of the flexibility and availability of proven fabrication techniques, vascular-based…

Numerical Analysis · Mathematics 2023-03-14 K. B. Nakshatrala , K. Adhikari

We investigate the temperature evolution in the three-dimensional skin tissue exposed to a millimeter-wave electromagnetic beam that is not necessarily perpendicular to the skin surface. This study examines the effect of the beam's incident…

Optics · Physics 2025-06-10 Hongyun Wang , Shannon E. Foley , Hong Zhou

Background: The use of near-infrared lasers for transcranial photobiomodulation (tPBM) offers a non-invasive method for influencing brain activity and is beneficial for various neurological conditions. Objective: To investigate the safety…

Neurons and Cognition · Quantitative Biology 2024-07-16 Zhilin Li , Yongheng Zhao , Yiqing Hu , Yang Li , Keyao Zhang , Zhibing Gao , Lirou Tan , Hanli Liu , Xiaoli Li , Aihua Cao , Zaixu Cui , Chenguang Zhao

Using PDE-constrained optimization we introduce a parameter identification approach which can identify the blood perfusion rate from MR thermometry data obtained during the treatment with laser-induced thermotherapy (LITT). The blood…

Optimization and Control · Mathematics 2025-10-14 Matthias Andres , Sebastian Blauth , Christian Leithäuser , Norbert Siedow
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