Announcement

Collapse
No announcement yet.

Water structure and Science

Collapse
This is a sticky topic.
X
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Ref Water structure and Science

    Water structure and Sience is a marvelous site about this strange molecule.
    The site is maintened by Martin Chaplin


    http://www.lsbu.ac.uk/water/index2.html

    Read these
    http://www.lsbu.ac.uk/water/ions.html
    http://www.lsbu.ac.uk/water/cell.html
    Simplicity is the ultimate sophistication. L VINCI
    We are to admit no more causes of natural things than such as are both true and sufficient to explain their appearances. I NEWTON

    Everything should be made as simple as possible, but not a bit simpler.
    If you can't explain it simply, you don't understand it well enough. Albert Einstein
    bernard

  • #2
    J Biol Phys. 2012 Jan;38(1):113-20. doi: 10.1007/s10867-011-9237-5. Epub 2011 Sep 9.
    Force field measurements within the exclusion zone of water.

    Chen CS1, Chung WJ, Hsu IC, Wu CM, Chin WC.
    Author information


    Abstract

    Water molecules play critical roles in many biological functions, such as protein dynamics, enzymatic activities, and cellular responses. Previous nuclear magnetic resonance and neutron scattering studies have shown that water molecules bind to specific sites on surfaces and form localized clusters. However, most current experimental techniques cannot measure dynamic behaviors of ordered water molecules on cell-size (10 μm) scale. Recently, the long-distance effect of structured water has been demonstrated by Pollack and his colleagues. Namely, there is a structured water layer near the hydrophilic surface that can exclude solutes (Zheng et al, Adv Colloid Interface Sci 127:19-27, 2006; Pollack 2006, Adv Colloid Interface Sci 103:173-196, 2003). The repelling forces of water clusters inside this exclusion region are investigated in this study. With a laser tweezers system, we found the existence of an unexpected force fields inside the solute-free exclusion zone near a Nafion surface. Our results suggest that the water clusters could transduce mechanical signals on the micrometer range within the exclusion zone. This unexpected inhomogeneous force field near the hydrophilic surface would provide a new insight into cellular activities, leading to a potential new physical chemistry mechanism for cell biology.


    KEYWORDS:

    Exclusion zone; Laser tweezers; Nafion; Water

    PMID:23277674 [PubMed]
    PMCID:PMC3285724
    Attached Files
    Simplicity is the ultimate sophistication. L VINCI
    We are to admit no more causes of natural things than such as are both true and sufficient to explain their appearances. I NEWTON

    Everything should be made as simple as possible, but not a bit simpler.
    If you can't explain it simply, you don't understand it well enough. Albert Einstein
    bernard

    Comment


    • #3
      Something different but

      NASA Research Suggests Mars Once Had More Water Than Earth’s Arctic Ocean
      Marcel

      "Evolution is a tinkerer not an engineer" F.Jacob
      "Without imperfection neither you nor I would exist" Stephen Hawking

      Comment


      • #4
        Water and origin of life

        Vladimir Matveev. The great basic question of science: Membrane compartment or non-membrane phase compartment is a physical basis for origin of life?
        Oral presentation at The 2nd All-Russian Conference on Astrobiology. Moscow, Pushchino, 5-9 June 2016.
        Video in English: https://youtu.be/Hn7A-1w0tuQ

        Presentation slides in English as pdf:
        http://www.bioparadigma.spb.ru/conf/...Eng_Slides.pdf

        Comments for slides in English:
        http://www.bioparadigma.spb.ru/conf/...mments_Eng.pdf

        Comment

        Working...
        X