Results 211 to 220 of about 46,194 (267)

Photopolymerized Polypyrrole Microvessels

Chemistry – A European Journal, 2011
AbstractWe report on the preparation of water‐filled polymer microvessels through the photopolymerization of pyrrole in a water/chloroform emulsion. The resulting structures were characterized by complementary spectroscopic and microscopic techniques, including Raman spectroscopy, XPS, SEM, and TEM. The encapsulation of fluorescent, magnetic, and ionic
Kijewska, Krystyna, Blanchard, Gary J., Szlachetko, Jakub, Stolarski, Jarosław, Kisiel, Anna, Michalska, Agata, Maksymiuk, Krzysztof, Pisarek, Marcin, Majewski, Paweł, Krysiński, Paweł, Mazur, Maciej   +10 more
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Metabolism of renal microvessels

Microvascular Research, 1978
Abstract Metabolic profiles of renal arteriolar smooth muscle cells were constructed from semiquantitative histochemical analysis of biopsies from 20 mongrel dogs. Vessels ranging in outer wall diameter from 20 to 80 μm were analyzed for the presence and relative intensity of 14 enzymes and 3 substrates with attention being directed in particular to ...
B H, Cook, H J, Granger, D N, Granger, A E, Taylor   +3 more
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Mechanical mechanisms for thrombosis in microvessels

2007 IEEE 33rd Annual Northeast Bioengineering Conference, 2006
The hypothesis that thrombus can be induced in curved vessels due to mechanical stimuli was tested both experimentally and computationally. Our in vivo experiments on the mesentery of Sprague-Dawley rats (250-300 g) showed that thrombi were formed in non-injured curved microvessels (post-capillary venules, 20-50 micrometer in diameter), and they were ...
Qin Liu, David Mirc, Bingmei M. Fu
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Pyrene-Loaded Polypyrrole Microvessels

Langmuir, 2011
The encapsulation of guest molecules within polymeric hollow nano- or microscale structures is a rapidly developing field of interdisciplinary research due to a variety of applications ranging from drug delivery and sensor fabrication to nanoscale synthesis and bioinspired mineralization.
Daria, Kępińska, Gary J, Blanchard, Paweł, Krysiński, Jarosław, Stolarski, Krystyna, Kijewska, Maciej, Mazur   +5 more
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Microbubble dynamics in microvessels: Observations of microvessel dilation, invagination and rupture

2008 IEEE Ultrasonics Symposium, 2008
Understanding the interaction of acoustically activated microbubbles with small blood vessels is important for designing better imaging schemes, and for targeting and drug delivery applications. To understand the fundamental mechanisms of this interaction, high-speed microscopy was used to observe microbubble dynamics in microvessels of ex vivo rat ...
null Hong Chen, Andrew A. Brayman, Thomas J. Matula   +2 more
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Neuronal Control of Microvessels

Annual Review of Physiology, 1980
Most studies of the neuronal control of the microcirculation have involved whole organ measurements of blood flow, tissue volume, or capillary filtra­ tion (61). Consequently, accounts of the responses of the different series­ coupled sections of a vascular bed-i.e.
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Microvessel density for melanoma prognosis

Histopathology, 2005
Aims : Two‐hundred and four accessible cases of malignant melanoma from the Grampian region of Scotland, collected over a period of 4 years, were studied for standard prognostic indicators for comparison with microvessel density.Methods and results : The range of tumour thickness varied from in‐situ melanoma to 14.8 mm. Microvessel density was assessed
I, Depasquale, W D, Thompson
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RESPONSES OF HEPATIC MICROVESSELS

Quarterly Journal of Experimental Physiology and Cognate Medical Sciences, 1972
The response of microvessels of the intact liver to various stimuli was observed in the anaesthetized rat by a modified transillumination technique, permitting photomicrography at any time during the direct microscopic observation. Adrenaline and noradrenaline appeared to have direct constrictor action on the portal venous branches, hepatic sinusoids ...
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Vasomotion of Intraradicular Microvessels in Rat

Spine, 2009
This study is to investigate the changes of vasomotion of intraradicular microvessels in vivo.We have observed microvascular corrosion casts of the lumbar nerve root by scanning electron microscopy and used an immunohistochemical technique to investigate the presence and distribution of autonomic and sensory nerve in blood vessels of the nerve root.It ...
Shigeru, Kobayashi, Erisa Sabakaki, Mwaka, Adam, Meir, Kenzo, Uchida, Kenichi, Takeno, Tsuyoshi, Miyazaki, Masafumi, Kubota, Hideaki, Nakajima, Eiki, Nomura, Hidezo, Yoshizawa, Hisatoshi, Baba   +10 more
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Tissue engineering of perfused microvessels

Microvascular Research, 2003
One major obstacle toward the creation and survival of larger, three-dimensional tissues is the lack of a vascular network that provides transport of oxygen, nutrients, and metabolic byproducts. Although attempts to create microvasculature in vitro have been described previously (Microcirculation 2 (1995), 377; Tissue Eng. 6 (2000), 105; Ann.
Thomas, Neumann, Brian S, Nicholson, Joan E, Sanders   +2 more
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