Biological tissue component evaluation by measuring photoacoustic spectrum

Author(s):  
Takeshi Namita ◽  
Yuya Murata ◽  
Junji Tokuyama ◽  
Kengo Kondo ◽  
Makoto Yamakawa ◽  
...  
2012 ◽  
Vol 101 (22) ◽  
pp. 221102 ◽  
Author(s):  
Guan Xu ◽  
Irfaan A. Dar ◽  
Chao Tao ◽  
Xiaojun Liu ◽  
Cheri X. Deng ◽  
...  

Author(s):  
T. E. Hutchinson ◽  
D. E. Johnson ◽  
A. C. Lee ◽  
E. Y. Wang

Microprobe analysis of biological tissue is now in the end phase of transition from instrumental and technique development to applications pertinent to questions of physiological relevance. The promise,implicit in early investigative efforts, is being fulfilled to an extent much greater than many had predicted. It would thus seem appropriate to briefly report studies exemplifying this, ∿. In general, the distributions of ions in tissue in a preselected physiological state produced by variations in the external environment is of importance in elucidating the mechanisms of exchange and regulation of these ions.


Author(s):  
L.X. Oakford ◽  
S.D. Dimitrijevich ◽  
R. Gracy

In intact skin the epidermal layer is a dynamic tissue component which is maintained by a basal layer of mitotically active cells. The protective upper epidermis, the stratum corneum, is generated by differentiation of the suprabasal keratinocytes which eventually desquamate as anuclear comeocytes. A similar sequence of events is observed in vitro in the non-contracting human skin equivalent (HSE) which was developed in this lab (1). As a part of the definition process for this model of living skin we are examining its ultrastructural features. Since desmosomes are important in maintaining cell-cell interactions in stratified epithelia their distribution in HSE was examined.


Author(s):  
K. N. Colonna ◽  
G. Oliphant

Harmonious use of Z-contrast imaging and digital image processing as an analytical imaging tool was developed and demonstrated in studying the elemental constitution of human and maturing rabbit spermatozoa. Due to its analog origin (Fig. 1), the Z-contrast image offers information unique to the science of biological imaging. Despite the information and distinct advantages it offers, the potential of Z-contrast imaging is extremely limited without the application of techniques of digital image processing. For the first time in biological imaging, this study demonstrates the tremendous potential involved in the complementary use of Z-contrast imaging and digital image processing.Imaging in the Z-contrast mode is powerful for three distinct reasons, the first of which involves tissue preparation. It affords biologists the opportunity to visualize biological tissue without the use of heavy metal fixatives and stains. For years biologists have used heavy metal components to compensate for the limited electron scattering properties of biological tissue.


2018 ◽  
Vol 3 (5) ◽  
pp. 237-241
Author(s):  
D. I. Ostafiychuk ◽  
◽  
T. V. Biryukova ◽  
S. I. Boysaniuk ◽  
◽  
...  
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