Results 111 to 120 of about 6,675 (237)
Optical wavefront shaping in deep tissue using photoacoustic feedback
JPhys PhotonicsOver the past decade, optical wavefront shaping has been developed to focus light through highly opaque scattering layers, opening new possibilities for biomedical applications.
Fei Xia +3 more
doaj +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Clinicians often concurrently tackle critical challenges including emergency hemorrhage, secondary infection, and the elusive tracking of biodegradation of conventional hemostatic agents for complex wounds. Here, we report an intelligent hemostatic sponge (spCS@AIE) by incorporating aggregation‐induced emission (AIE) nanoparticles with short‐wave ...
Zhicheng Liu +12 more
wiley +1 more source
Tissue Optics and Photonics: Light-Tissue Interaction II
Journal of Biomedical Photonics & Engineering, 2016 This is the third part of the review-tutorial paper describing fundamentals of tissue optics and photonics. The first part of the paper was mostly devoted to description of tissue structures and their specificity related to interactions with light [1 ...
Valery V. Tuchin
doaj +1 more source
Tissue oxygenation dynamics during transition from seizure to spreading depolarization in rat brain
Epilepsia, EarlyView.Abstract Objective Spreading depolarization (SD) is a phenomenon underlying various neurological conditions, including epilepsy. Researchers have suspected that local tissue oxygenation breakdown induces spontaneous SD. In this study, we investigated the relationship between spontaneous epileptic seizures and SD, with a focus on the role of local ...
Jiayang Liu, Bruce J. Gluckman
wiley +1 more source
In Situ Acoustic Monitoring of Focused Femtosecond Pulse Duration in Air
Laser &Photonics Reviews, EarlyView.Air‐breakdown acoustics at the laser focus is used to determine femtosecond pulse duration with a simple USB microphone. By chirp‐tuning and compressing 1030 nm pulses from 241 to 50 fs, the acoustic amplitude scales inversely proportional to the square root of the pulse duration, enabling in situ readout over 50 fs–5 ps—crucial for precise pulse ...
Indrė Meškėlaitė +9 more
wiley +1 more source
Responsive Materials, EarlyView.We systematically summarize how each scale dictates fundamental choices in design feature, manufacturing technology, driving mechanism, and control strategy, which are inherently governed by scale‐dominated physical principles. Furthermore, the application of scale‐determined operation modes of microrobots across different stages of medical ...
Hang Yin +3 more
wiley +1 more source
2D van der Waals System Integrated with Targeting Radio‐Diagnostic and Imaging Functions
Small, EarlyView.Layered double hydroxide (LDH) nanoplates were engineered for tumor‐targeted imaging and therapy. By exploiting folate receptor (FR) expression levels, the system achieves selective tumor accumulation and high‐resolution dual PET/fluorescence (PET/FL) imaging.
Sairan Eom +6 more
wiley +1 more source
Enhanced Dye‐Sensitized Mechanosensation Utilizing Pulsed and Digitally Modulated Light
Advanced ScienceThe generation of pressure perturbations in matter stimulated by pulsed light is a method widely recognized as the photoacoustic or light‐induced thermoelastic effect.
Tarek Rafeedi +12 more
doaj +1 more source
External Stimuli‐Activable Single‐Atom Nanozymes for Bioapplications
Small, EarlyView.Stimuli‐activable single‐atom nanozymes (SANs) are reviewed from materials design to biomedical applications. We explain electronic‐structure tuning principles and synthesis strategies that maximize the responsiveness of metal active sites and supports to light, ultrasound, and magnetic fields.
Hyun Ko +6 more
wiley +1 more source
Activatable smart contrast agents for photoacoustic imaging
Smart Molecules, EarlyView.This review highlights recent advances in smart activatable photoacoustic imaging (PAI) contrast agents, which dynamically modulate their optical properties in response to external stimuli or microenvironmental cues. It discusses their molecular design, activation mechanisms, biomedical applications, and future prospects for clinically tailored use ...
Donghyeon Oh +5 more
wiley +1 more source