Bioactivity and Degradability Study of the Bone Scaffold Developed from Labeo Rohita Fish Scale Derived Hydroxyapatite

This paper presents the performance behaviors of a hydrodynamic thrust bearing incorporating new pad surface designs involving microrectangular pocket and Labeo rohita fish scale texture. The bearing performance parameters have been numerically explored and analyzed using three different pad surface designs. The effects of texture parameters such as pocket/texture depth, extend of pocket, and fish texture spread in the circumferential and radial directions, the number of scale texture waves in circumferential and radial directions, have been investigated for improving the performance of the bearing. It has been found that the pad surface having microrectangular pocket and fish scale texture together yields substantial increase in minimum film thickness and reduction in friction coefficient as compared to the other pad designs.

Download Full-text

Development of bone scaffold using Puntius conchonius fish scale derived hydroxyapatite: Physico-mechanical and bioactivity evaluations

Ceramics International ◽

10.1016/j.ceramint.2019.02.044 ◽

2019 ◽

Vol 45 (8) ◽

pp. 10004-10012 ◽

Cited By ~ 13

Author(s):

Payel Deb ◽

Emon Barua ◽

Ashish B. Deoghare ◽

Sumit Das Lala

Keyword(s):

Fish Scale ◽

Bone Scaffold

Download Full-text

EXTRACTION AND CHARACTERIZATION OF GELATIN: A FUNCTIONAL BIOPOLYMER

International Journal of Pharmacy and Pharmaceutical Sciences ◽

10.22159/ijpps.2017v9i9.17618 ◽

2017 ◽

Vol 9 (9) ◽

pp. 239 ◽

Cited By ~ 20

Author(s):

Merina Paul Das ◽

Suguna P. R. ◽

Karpuram Prasad ◽

Vijaylakshmi Jv ◽

Renuka M

Keyword(s):

Labeo Rohita ◽

Dry Weight ◽

Proximate Analysis ◽

Fish Scale ◽

X Ray Diffraction ◽

X Ray ◽

Potential Source ◽

Physico Chemical ◽

Vis Spectroscopy

Objective: Gelatin is widely used biopolymer in various industries due to its excellent biocompatibility, biodegradability properties. In the present study, gelatin was extracted from fish wastes, as an alternative source.Methods: This biopolymer was extracted from the scales of freshwater fish, Labeo rohita. After extraction, the proximate analysis and physico-chemical analysis of the fish scale gelatin were carried out. This functional polymer was also characterized using different analytical methods, such as UV-vis spectroscopy, scanning electron microscopy (SEM), and X-ray diffraction (XRD) for the evaluation of crystalline and surface morphology, and fourier transform infrared spectroscopy (FTIR) for structural determination.Results: The scales of L. rohita yield 24% (dry weight basis) of gelatin, indicating this fish species as potential source of gelatin. The proximate analysis determined was low moisture content (4.2%), ash (1.4%) and high protein (90%) content. The result of the study confirms the effectiveness of extraction method used.Conclusion: The fish scales of L. rohita are found to be a sustainable and renewable source of gelatin with desirable functionalities and it is the best alternative for mammalian gelatin in food and other industries.

Download Full-text

Scanning Electron Microscopy of Fish Scales as an Adjunctive Aid in Speciation

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100095236 ◽

1972 ◽

Vol 30 ◽

pp. 394-395

Author(s):

Edward D. DeLamater ◽

Walter R. Courtenay ◽

Cecil Whitaker

Keyword(s):

Electron Microscopy ◽

Scanning Electron Microscopy ◽

Lateral Line ◽

Species Differences ◽

Fish Scale ◽

Fish Scales ◽

Anterior Border ◽

The University ◽

Multiple Holes ◽

Scanning Electron

Comparative scanning electron microscopy studies of fish scales of different orders, families, genera and species within genera have demonstrated differences which warrant elaboration. These differences in detail appear to be sufficient to act as “fingerprints”, at least, for family differences. To date, the lateral line scales have been primarily studied. These demonstrate differences in the lateral line canals; the pattern of ridging with or without secondary protuberances along the edges; the pattern of spines or their absence on the anterior border of the scales; the presence or absence of single or multiple holes on the ventral and dorsal sides of the lateral line canal covers. The distances between the ridges in the pattern appear likewise to be important.A statement of fish scale structure and a comparison of family and species differences will be presented.The authors wish to thank Dr. Donald Marzalek and Mr. Wallace Charm of the Marine and Atmospheric Laboratory of the University of Miami and Dr. Sheldon Moll and Dr. Richard Turnage of AMR for their exhaustive help in these preliminary studies.

Download Full-text

SEM analysis of fish scale cross sections: A technique study

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100124124 ◽

1992 ◽

Vol 50 (1) ◽

pp. 744-745

Author(s):

M.E. Lee ◽

A. Moller ◽

P.S.O. Fouche ◽

I.G Gaigher

Keyword(s):

Electron Microscopy ◽

Scanning Electron Microscopy ◽

Cross Sections ◽

Soft Tissues ◽

Close Association ◽

Sem Analysis ◽

Fish Scale ◽

Fish Scales ◽

Micro Structures ◽

Scanning Electron

Scanning electron microscopy of fish scales has facilitated the application of micro-structures to systematics. Electron microscopy studies have added more information on the structure of the scale and the associated cells, many problems still remain unsolved, because of our incomplete knowledge of the process of calcification. One of the main purposes of these studies has been to study the histology, histochemistry, and ultrastructure of both calcified and decalcified scales, and associated cells, and to obtain more information on the mechanism of calcification in the scales. The study of a calcified scale with the electron microscope is complicated by the difficulty in sectioning this material because of the close association of very hard tissue with very soft tissues. Sections often shatter and blemishes are difficult to avoid. Therefore the aim of this study is firstly to develop techniques for the preparation of cross sections of fish scales for scanning electron microscopy and secondly the application of these techniques for the determination of the structures and calcification of fish scales.

Download Full-text