Results 61 to 70 of about 1,759,840 (273)

Contrast and sensitivity enhanced molecular imaging using photoacoustic nanoamplifiers [PDF]

open access: yes, 2013
textMolecular imaging is an emerging imaging principle which can visually represent the biological processes both spatially and temporally down to the sub-cellular level in vivo.
Chen, Yun-Sheng, active 2012
core  

Light Emitting Diodes Based Photoacoustic and Ultrasound Tomography: Imaging Aspects and Applications [PDF]

open access: yes, 2020
Tomographic photoacoustic and ultrasound imaging is essential for isotropic spatial resolution and to obtain a full view of the target tissue. However, tomographic systems with pulsed laser sources and custom made transducer arrays are expensive ...
Manohar, Srirang   +11 more
core   +2 more sources

Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond

open access: yesAdvanced Materials, EarlyView.
Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang   +4 more
wiley   +1 more source

Resolution Enhancement Strategies in Photoacoustic Microscopy: A Comprehensive Review

open access: yesMicromachines
Photoacoustic imaging has emerged as a promising modality for medical imaging since its introduction. Photoacoustic microscopy (PAM), which is based on the photoacoustic effect, combines the advantages of both optical and acoustic imaging modalities. PAM
Jinying Zhang   +5 more
doaj   +1 more source

Simultaneous Dual-Modal Multispectral Photoacoustic and Ultrasound Macroscopy for Three-Dimensional Whole-Body Imaging of Small Animals

open access: yesPhotonics, 2021
Photoacoustic imaging is a promising medical imaging technique that provides excellent function imaging of an underlying biological tissue or organ. However, it is limited in providing structural information compared to other imaging modalities, such as ...
Eun-Yeong Park   +5 more
doaj   +1 more source

Calcium Sensor for Photoacoustic Imaging

open access: yesJournal of the American Chemical Society, 2017
We introduce a selective and cell-permeable calcium sensor for photoacoustics (CaSPA), a versatile imaging technique that allows for fast volumetric mapping of photoabsorbing molecules with deep tissue penetration. To optimize for Ca2+-dependent photoacoustic signal changes, we synthesized a selective metallochromic sensor with high extinction ...
Sheryl Roberts   +17 more
openaire   +5 more sources

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

open access: yesAdvanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen   +7 more
wiley   +1 more source

Photoacoustic tomography system based on Diode Laser to Imaging of some types of materials

open access: yes, 2022
Photoacoustic tomography imaging research has been conducted to distinguish several types of materials. The photoacoustic tomography imaging system used in this study uses a diode laser as a source of radiation and a condenser microphone as a detection ...
Satriawan, Mirza   +2 more
core   +1 more source

Tomographic ultrasound and led-based photoacoustic system for preclinical imaging [PDF]

open access: yes, 2020
Small animals are widely used as disease models in medical research. Noninvasive imaging modalities with functional capability play an important role in studying the disease state and treatment progress. Photoacoustics, being a noninvasive and functional
Booijink, Richell   +8 more
core   +2 more sources

Membrane‐Bound Multimodal Plasmonic Transducers for Noninvasive, In Situ Monitoring and Control of CAR T Cells Against Heterogeneous Solid Tumors

open access: yesAdvanced Materials, EarlyView.
Membrane‐bound multimodal transducers enable longitudinal ultrasound‐guided photoacoustic monitoring and in situ thermal control of CAR T cells in heterogeneous solid tumors. Imaging correlates T cell trafficking with tumor response, distinguishing responders from nonresponders.
Myeongsoo Kim   +14 more
wiley   +1 more source

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