Results 41 to 50 of about 3,165 (178)

Croconaine-based nanoparticles enable efficient optoacoustic imaging of murine brain tumors

open access: yesPhotoacoustics, 2021
Contrast enhancement in optoacoustic (photoacoustic) imaging can be achieved with agents that exhibit high absorption cross-sections, high photostability, low quantum yield, low toxicity, and preferential bio-distribution and clearance profiles. Based on
Nian Liu   +17 more
doaj   +1 more source

Localization optoacoustic tomography

open access: yesLight: Science & Applications, 2018
AbstractLocalization-based imaging has revolutionized fluorescence optical microscopy and has also enabled unprecedented ultrasound images of microvascular structures in deep tissues. Herein, we introduce a new concept of localization optoacoustic tomography (LOT) that employs rapid sequential acquisition of three-dimensional optoacoustic images from ...
Luís Dean-Ben, X, Razansky, Daniel
openaire   +4 more sources

On the Correlation of Cymbals’ Vibrational Behavior and Manufacturing Processes

open access: yesApplied Sciences
The complex frequency domain assurance criterion is here applied for the comparison of a pristine to an altered state of a vibrating system. The criterion was originally proposed for the detection of defects in vibrating structures, while in later ...
Spyros Brezas   +5 more
doaj   +1 more source

Effort inference and prediction by acoustic and movement descriptors in interactions with imaginary objects during Dhrupad vocal improvisation

open access: yesWearable Technologies, 2022
In electronic musical instruments (EMIs), the concept of “sound sculpting” was proposed by Mulder, in which imaginary objects are manually sculpted to produce sounds, although promising has had some limitations: driven by pure intuition, only the objects’
Stella Paschalidou
doaj   +1 more source

Pushing the Boundaries of Neuroimaging with Optoacoustics [PDF]

open access: yesNeuron, 2017
With the central ability to visualize a variety of endogenous chromophores and biomarkers or exogenous contrast agents, optoacoustic (photoacoustic) imaging empowers new experimental capabilities for investigating brain mechanisms and functions. Here, the operational principles of optoacoustic neuroimaging are reviewed in conjunction with recent ...
Ovsepian, Saak V.   +4 more
openaire   +3 more sources

Real-time optoacoustic temperature determination on cell cultures during heat exposure: a feasibility study

open access: yesInternational Journal of Hyperthermia, 2019
Objective/Purpose: In order to study the effects of hyperthermia and other temperature-related effects on cells and tissues, determining the precise time/temperature course is crucial.
Yoko Miura   +6 more
doaj   +1 more source

Overdriven laser diode optoacoustic microscopy

open access: yesScientific Reports, 2023
Laser diodes are small and inexpensive but don’t afford the pulse energy and beam profile required for optoacoustic (photoacoustic) microscopy. Using two novel modulation concepts, i.e.
Markus Seeger   +4 more
doaj   +1 more source

Multispectral optoacoustic tomography for in vivo detection of lymph node metastases in oral cancer patients using an EGFR-targeted contrast agent and intrinsic tissue contrast: A proof-of-concept study

open access: yesPhotoacoustics, 2022
Oral cancer patients undergo diagnostic surgeries to detect occult lymph node metastases missed by preoperative structural imaging techniques.
J. Vonk   +10 more
doaj   +1 more source

Magnetically Actuated Microrobot for Drug Delivery: Current Progress and Challenges

open access: yesAdvanced Robotics Research, EarlyView.
Magnetically actuated microrobots are reshaping targeted drug delivery through wireless propulsion, programmable materials, and localized therapeutic release. This review examines how fabrication, body material selection, structural architecture, loading mechanisms, and imaging‐guided control converge to enable microrobotic therapies while identifying ...
Yang Yang, David J. Cappelleri
wiley   +1 more source

Extended Near-Infrared Optoacoustic Spectrometry for Sensing Physiological Concentrations of Glucose

open access: yesFrontiers in Endocrinology, 2018
Glucose sensing is pursued extensively in biomedical research and clinical practice for assessment of the carbohydrate and fat metabolism as well as in the context of an array of disorders, including diabetes, morbid obesity, and cancer.
Ara Ghazaryan   +5 more
doaj   +1 more source

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