TITLE

Effect of microgravity on Ca mineral crystallization and implications for osteoporosis in space

AUTHOR(S)
Liu, Xiang Yang
PUB. DATE
November 2001
SOURCE
Applied Physics Letters;11/19/2001, Vol. 79 Issue 21, p3539
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A study of the effect of microgravity on biomineralization/remineralization by considering Ca mineral nucleation under gravity and microgravity is presented. The structure of human bone is determined to a large extent by the turnover of the bone, which included nucleation of biominerals adjacent to biosubstrates. Heterogeneous nucleation will promote a compact bone structure, whereas homogeaneous nucleation will lead to a porous bone structure. Our experimental results show that microgravity will suppress convection, and consequently promote homogeneous-like nucleation during biomineralization/remineralization. This may explain the formation of the porous bone structure under microgavity condition. © 2001 American Institute of Physics.
ACCESSION #
5549528

 

Related Articles

  • Influence of nucleation nature on Ca mineral/substrate structural synergy and implications for biomineralization in microgravity. Liu, Xiang Yang // Journal of Chemical Physics;12/1/2001, Vol. 115 Issue 21, p9970 

    This paper presents a study of the effect of heterogeneous/homogeneous nucleation and microgravity on the structural synergy between Ca minerals and substrates. The structure of human bone is determined to a large extent by the turnover of the bone, which includes nucleation of biominerals...

  • Rotary Culture Enhances Pre-osteoblast Aggregation and Mineralization. Facer, S. R.; Zaharias, R. S.; Andracki, M. E.; Lafoon, J.; Hunter, S. K.; Schneider, G. B. // Journal of Dental Research;Jun2005, Vol. 84 Issue 6, p542 

    Three-dimensional environments have been shown to enhance cell aggregation and osteoblast differentiation. Thus, we hypothesized that three-dimensional (3D)growth environments would enhance the mineralization rate of human mbryonic palatal mesenchymal (HEPM) preosteoblasts. The objective of this...

  • Micro-gravity 'not a priority' Coppinger, Rob // Engineer (00137758);3/21/2003, Vol. 291 Issue 7623, p8 

    Reports on the reasons for the discontinuation of microgravity research in Great Britain. Lack of government funding; Inadequacy of consultation; Lack of equipment.

  • Lightweight decisions on weighty matters. Harvey, Fiona // Engineer (00137758);3/21/2003, Vol. 291 Issue 7623, p23 

    Comments on the failure of the government to fund research in microgravity in Great Britain. Lack of proper procedures for reviewing the future of research; Lack of transparency in the decision-making process; Fees demanded by the European Space Agency a year for use of its equipment.

  • Marvelous microgravity. Kowalski, Kathiann M. // Odyssey;Feb97, Vol. 6 Issue 2, p6 

    Focuses on the importance of microgravity to scientific research. How microgravity is achieved; Fields that benefit from experiments in reduced gravity environments; Costs of microgravity research in space; Prospects of building factories in space; Products that could be improved by...

  • Look out below! K.M.K. // Odyssey;Feb97, Vol. 6 Issue 2, p13 

    Describes the author's experience during a ride on the Demon Drop in Cedar Point Amusement Park in Sandusky, Ohio which demonstrated how microgravity is achieved during a free fall drop.

  • Science Notes: Microgravity Concepts. Roach, Mike // Australian Science Teachers Journal;Sep2000, Vol. 46 Issue 3, p49 

    Discusses the concept of microgravity which is a term used to describe a very low gravity environment. Similarity with weightlessness; State of gravity on astronauts in earth orbit; Preparation of astronauts for the effects of weightlessness; Activities that demonstrate the effects of...

  • Investigating Microgravity. Vreeland, Pete // Science Teacher;Oct2002, Vol. 69 Issue 7, p36 

    Presents the experiment on microgravity. Concepts on the behavior of objects in a weightless environment; Background of the experiment; Materials needed in the experiment.

  • Microgravity on tap. Swinbanks, D. // Nature;7/25/1991, Vol. 352 Issue 6333, p272 

    Reports on the opening of the Japan Microgravity Center in Kamisunagawa. An experiment was presented where a five-ton capsule containing a bowl of gold fish was dropped nearly a kilometer and the fish experienced a spell of near-zero gravity.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics