Integrated photothermal flow cytometry in vivo.
@article{Zharov2005IntegratedPF,
title={Integrated photothermal flow cytometry in vivo.},
author={Vladimir P. Zharov and Ekaterina I Galanzha and Valery V. Tuchin},
journal={Journal of biomedical optics},
year={2005},
volume={10 5},
pages={
051502
}
}The capability of integrated flow cytometry to detect, in real time, moving cells in their natural states in vivo is demonstrated in a study of circulating red and white blood cells in lymph and blood flow of rat mesentery. This system combines dual pump-probe photothermal (PT) techniques, such as PT imaging, the PT thermolens method, and PT velocimetry, with high-resolution (up to 0.3 microm), high-speed (up to 1000 fps) transmission digital microscopy (TDM) and fluorescence imaging. All PT…
Figures from this paper
37 Citations
In vivo photothermal flow cytometry: Imaging and detection of individual cells in blood and lymph flow
- BiologyJournal of cellular biochemistry
- 2006
The capabilities of the label‐free photothermal (PT) technique for detecting and imaging cells in the microvessel network of rat mesentery are analyzed from the point of view of overcoming the problems of flow cytometry in vivo.
Photoacoustic flow cytometry: principle and application for real-time detection of circulating single nanoparticles, pathogens, and contrast dyes in vivo.
- BiologyJournal of biomedical optics
- 2007
This study represents the first attempt, to the authors' knowledge, to demonstrate the capability of PAFC with tunable near-infrared (NIR) pulse lasers for real-time monitoring of gold nanorods, Staphylococcus aureus and Escherichia coli labeled with carbon nanotubes (CNTs), and contrast dye Lymphazurin in the microvessels of mouse and rat ears and mesenteries.
In vivo multispectral, multiparameter, photoacoustic lymph flow cytometry with natural cell focusing, label‐free detection and multicolor nanoparticle probes
- BiologyCytometry. Part A : the journal of the International Society for Analytical Cytology
- 2008
Counting of melanoma and immune‐related cells in normal, apoptotic, and necrotic states in lymphatics in vivo was demonstrated to have the unprecedented sensitivity as one metastatic cell among millions of white blood cells.
Advances in intravital microscopy for monitoring cell flow dynamics in vivo
- BiologySPIE BiOS
- 2007
This review summarizes the latest achievements in in vivo real time monitoring of individual cells in the context of blood flow, super-sensitive fluorescence imaging, high-speed cell imaging and light scattering techniques focusing on the development of modern optical and biological platforms.
Circulating Tumor Cell Detection and Capture by Photoacoustic Flow Cytometry in Vivo and ex Vivo
- Biology, MedicineCancers
- 2013
PAFC is demonstrated to have the capability to detect rare leukemia, squamous carcinoma, melanoma, and bulk and stem breast CTCs and its clusters in preclinical animal models in blood, lymph, bone, and cerebrospinal fluid, as well as the release of C TCs from primary tumors triggered by palpation, biopsy or surgery, increasing the risk of metastasis.
Advances in small animal mesentery models for in vivo flow cytometry, dynamic microscopy, and drug screening.
- BiologyWorld journal of gastroenterology
- 2007
Using animal mesentery with intravital optical microscopy is a well-established experimental model for studying blood and lymph microcirculation in vivo and demonstrated that individual cell transportation in living organisms depends on cell type, the cellos functional state, and the functional status of the organism.
Photothermal confocal spectromicroscopy of multiple cellular chromophores and fluorophores.
- Biology, ChemistryBiophysical journal
- 2012
Ultrasensitive label-free photothermal imaging, spectral identification, and quantification of cytochrome c in mitochondria, live cells, and solutions.
- Biology, ChemistryJournal of biophotonics
- 2010
A combination of high resolution PT imaging with PT spectral identification and ultrasensitive quantitative PT characterization of cytochrome c within individual mitochondria in single live cells is demonstrated for the first time.
In vivo photoacoustic and photothermal cytometry for monitoring multiple blood rheology parameters
- Biology, MedicineCytometry. Part A : the journal of the International Society for Analytical Cytology
- 2011
The multi‐parameter platform that integrates PT, PA, and conventional optical techniques has potential for translation to clinical applications using safe, portable, laser‐based medical devices for point‐of‐care screening of disease progression and therapy efficiency.
References
SHOWING 1-10 OF 66 REFERENCES
Photothermal imaging of moving cells in lymph and blood flow in vivo
- BiologySPIE BiOS
- 2004
The concept of in vivo PT flow cytometry was developed, with a focus on real-time monitoring of moving blood cells in their natural states without labeling, including obtaining PT images of the cells and determining their flow velocity and response to different interventions.
Photothermal images of live cells in presence of drug.
- Biology, PhysicsJournal of biomedical optics
- 2002
It was experimentally shown that the introduction of NaN(3) or anti-tumor drug in the cell suspension led to a change in the structure of PT images of human lymphocytes and human lympholeukemia cells, respectively, and it was hypothesized that the observed effects could be associated with the change of redox state of respiratory chain component.
Photothermal imaging of nanoparticles and cells
- PhysicsIEEE Journal of Selected Topics in Quantum Electronics
- 2005
This review summarizes the findings of recent applications of time-domain far-field photothermal (PT) technique to the detection and imaging of nanoscale absorbing particles. This two-beam…
Photothermal image flow cytometry in vivo.
- BiologyOptics letters
- 2005
The capability of photothermal (PT) microscopy to image moving, unlabeled cells in real time in vivo is demonstrated in a study of circulating red and white blood cells in blood and lymph…
Photothermal image cytometry of human neutrophils.
- PhysicsCytometry
- 1996
A dual-laser technique and an automated image cytometer based on an optical microscope are developed that provides morphofunctional information about cell populations and preliminary results of studies on living human neutrophils are presented.
In vivo flow cytometer for real-time detection and quantification of circulating cells.
- BiologyOptics letters
- 2004
An in vivo flow cytometer is developed that allows the real-time detection and quantification of circulating fluorescently labeled cells in live animals and is used to characterize the in vivo kinetics of red and white blood cells circulating in the vasculatúre of the mouse ear.
Photothermal guidance for selective photothermolysis with nanoparticles
- BiologySPIE BiOS
- 2004
Photothermal (PT) technique was applied to optimizing selective photothermolysis of cancer cells and bacteria into which nanoparticles have been incorporated and potentially allowed for the detection of nanoparticles that had been delivered into live cells by direct microinjection, natural diffusion, and selective targeting with antibodies.
Flow cytometry: principles and instrumentation.
- BiologyCurrent issues in molecular biology
- 2001
Every cytometric procedure performed is a reflection of the quality of the instrument, sample preparation, and the operator, and ultimately reflects on the institution.
Laser viability method for red blood cell-state monitoring
- BiologyOther Conferences
- 1996
In experiments with rats, treated with LPS E. Coli injection to stimulate fever and a septic stress, it is found that variation of RBC viability becomes apparent in 20 - 30 min after injection, while the clinical changes become detectable after 1 hour.
Study of platelet behavior in vivo after endothelial stimulation with laser irradiation using fluorescence intravital videomicroscopy and PEGylated liposome staining.
- BiologyMicrovascular research
- 2002
This study confirms that laser irradiation used with optimal parameters can induce platelet activation without thrombus formation and demonstrates the advantages of the new and innovative platelet staining method using PEGylated liposomes.










