Results 101 to 110 of about 1,180,081 (224)

Photoacoustic Tomography and Microscopy [PDF]

open access: yesOptics and Photonics News, 2008
By converting light waves into sound, researchers have developed a high-resolution biological imaging technique that allows them to see living tissue at new depths.
openaire   +1 more source

Supplementary document for Local-flexible coupling optical-resolution photoacoustic microscopy with enhanced sensitivity - 5907253.pdf

open access: yes, 2022
This document provides supplementary information to “Local-flexible coupling optical-resolution photoacoustic microscopy with enhanced sensitivity” regarding the influence of lateral ...
Zizhong Hu (659693)   +4 more
core   +1 more source

Programmable three‐state nanoreactor for spatiotemporally controlled tumor therapy

open access: yesBMEMat, EarlyView.
The OMVs are shielded with a biocompatible Da–Ca shell, which prolongs its circulation period and promotes intratumoral accumulation. Importantly, the biocompatible Da–Ca shell can be controllably disintegrated in tumor microenvironment by using laser irradiation, generating in situ hyperthermia and releasing Ca2+.
Guihong Lu   +12 more
wiley   +1 more source

Combined optical and acoustic resolution photoacoustic microscopy

open access: yes, 2017
Photoacoustic imaging is a fast growing in vivo imaging modality combining the optical absorption contrast and high spatial ultrasonic resolution. Using this technique deeper tissue penetration greater than optical mean free path (~1 mm in skin) is ...
Moothanchery, Mohesh   +3 more
core   +1 more source

Near‐infrared light‐activated aptamer‐based nanoprobe for spatiotemporally resolved detection of L‐lactate in colorectal cancer

open access: yesBMEMat, EarlyView.
A near‐infrared (NIR) light‐activated “lock‐key” nanodevice is reported for spatiotemporally resolved detection of intratumoral L‐lactate. The system stays silent until deep‐penetrating NIR light remotely unlocks its function, allowing for precise sensing within tumors.
Siyu Pan   +8 more
wiley   +1 more source

Nondestructive evaluation of structural ceramics by photoacoustic microscopy [PDF]

open access: yes, 1987
A photoacoustic microscopy (PAM) digital imaging system was developed and utilized to characterize silicon nitride material at the various stages of the ceramic fabrication process.
Khandelwal, Pramod K.
core  

Photoacoustic microscopy to detect subsurface features of integrated circuits

open access: yes, 1986
Photoacoustic microscopy has been carried out on p-channel metal-oxide semiconductor integrated circuits using laser excitation and piezoelectric detection.
Li Chen, Shu-Yi Zhang
core   +1 more source

Bridging the translational gap in clinical nanomedicine: From rational design to clinical reality

open access: yesBMEMat, EarlyView.
Nanotechnology offers a multi‐faceted approach to modern healthcare, encompassing high‐sensitivity diagnostic imaging, innovative vaccine delivery, and targeted therapeutics. This review explores how these nanomedicine applications address critical challenges in cancer recurrence and the treatment of neurologic and respiratory diseases to combat rising
Ahmed H. Ghonaim   +9 more
wiley   +1 more source

Harnessing evanescent photoacoustic waves for multi-domain imaging

open access: yesPhotoacoustics
Photoacoustic microscopy (PAM) offers a non-invasive imaging method that overcomes the limitations of light scattering in biological tissues by visualizing optical contrast through the detection of photo-generated acoustic signals.
Rong Zhou   +9 more
doaj   +1 more source

All‐in‐One Intelligent Hemostatic Sponge: Rapid Hemostasis for Non‐Compressive Wounds With Synergetic Enhanced Antibacterial Efficacy and Self‐Reporting Biodegradation

open access: yesENERGY &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

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