Talk:Lipid bilayer

message: Is a lipid bilayer also called a bimolecular layer? -Velen117 08:11, 12 September 2006 (UTC)
thread_title: Bimolecular layer?

message: This is a great article. One question about the lead. It says "Cell membranes are almost always made of bilayers in the fluid phase" - I hesitated to change this, since you're the expert, but I personally can't think of any counterexamples. What examples were you thinking of? Tim Vickers (talk) 17:25, 1 March 2009 (UTC)
replies: text: Certain species of archaea use a lipid monolayer rather than a bilayer. This is an adaptation to their role as extremophiles. At very high temperatures a monolayer is more stable than a bilayer. There are also a few other unique several adaptations present, including the use of an ether headgroup linkage and isoprene sidechains on the tails. Thanks for the edits. I think they help the intro read more clearly. My remaining concerns are whether the intro is still too long and whether it adequately addresses each sub-section. What do you think? Also, what do you think about the overall length of the article? Is there anything else I need to address before FA submission? MDougM (talk) 21:22, 1 March 2009 (UTC)
replies: text: Good point, we can still simplify and generalise this "Cell membranes are made lipids in the fluid phase, in part because fluid lipids can reseal small holes and tears." Tim Vickers (talk) 22:27, 1 March 2009 (UTC)

text: OK, that's probably as general as we can make it. Have you ever heard Einstein's aphorism about explaining science that is very applicable to writing Wikipedia articles - "Make things as simple as possible, but no simpler"! Tim Vickers (talk) 23:11, 1 March 2009 (UTC)
thread_title: Question

message: The diagram / photo referring to Planar patch clamp did not illustrate the section text, their presence thus confused the reader because section had no text at all referring to this highly specialized topic. Illustrations can be readily found in the PPC article itself, therefore I have removed them and linked to Planar patch clamp at the right text position where automated patch clamp systems are mentioned. Furthermore I have replaced the commercial nanion weblink with a link to the PPC article by Behrends and Fertig on the nanion site. Regards, --Burkhard (talk) 22:03, 28 February 2010 (UTC)
thread_title:  Commercial applications / removed [[Planar patch clamp]] diagrams 

message: The section on diffusion should be edited to include new information on aquaporins and their role in osmosis.  —Preceding unsigned comment added by Quadral (talk • contribs) 02:22, 16 September 2010 (UTC)
thread_title:  Aquaporins? 

message: The "Structure and Organisation" section of the article seems to alternate between using angstroms and nanometres for measuring distance.
For clarity and ease of understanding, wouldn't it be better to stick with one unit type? Preferably nanometers since they are an SI defined unit, whilst angstroms are not?
Also, if angstroms are to be kept due to their common usage in biology, can the link on the Å symbol be changed to direct to the Angstrom article instead of the article for the actual Å character? It just confused me first time round!
Cybernetic cheese (talk) 20:14, 5 October 2010 (UTC)
replies: text: Good point. I went ahead and changed everything to nm. MDougM (talk) 15:54, 17 March 2011 (UTC)
thread_title:  Use of Units 

message: It seems like the paragraph led by "Phospholipid-deficient mixed lipid bilayers" is perhaps too technical for this general article. Unless someone has a good counter-argument, I'll remove it from the main article and post it here so that it could maybe be spun off into a subsidiary article.  — Preceding unsigned comment added by MDougM (talk • contribs) 00:13, 7 March 2015 (UTC)
replies: text: I agree that that paragraph is too technical as written. Perhaps, after some editing, it could be moved to the "Mixed Systems" section of Lipid bilayer phase behavior? Shanata (talk) 09:05, 7 March 2015 (UTC)
replies: text: I went ahead and removed that section. Pasting here for posterity so that it can be moved to a more appropriate home at some point MDougM (talk) 20:46, 7 March 2015 (UTC)
thread_title:  overly technical detail in Structure and Organization? 

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thread_title:  External links modified 

message: Substituted at 22:04, 29 April 2016 (UTC)
thread_title: Assessment comment

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thread_title:  External links modified 

message: The article says about cytosis: The primary mechanism of this interdependence is the sheer volume of lipid material involved. In a typical cell, an area of bilayer equivalent to the entire plasma membrane will travel through the endocytosis/exocytosis cycle in about half an hour. If these two processes were not balancing each other, the cell would either balloon outward to an unmanageable size or completely deplete its plasma membrane within a matter of minutes. 
I would like to change sheer volume to large amounts or similar. I don't think there is a fault here. But the word volume is ambiguous and we want to avoid association with the other meaning, which is the primary meaning according to Wikipedia. 
I would also like to change within a matter of minutes to in a short time or in half an hour or something similar. This is a matter of arithmetics. If exocytosis processes an area equivalent to the plasma membrane in half an hour, then it needs half an hour to completely deplete the plasma membrane. This is a mathematical necessity. --Ettrig (talk) 10:31, 18 February 2019 (UTC)
thread_title:  Cytosis balancing 

message: The Signalling section says again some things that were already, and in my view better, explained in the Assymetry section.
Compare the following for brevity and clarity, please.
Assymettry section: "when a cell undergoes apoptosis, the phosphatidylserine — normally localised to the cytoplasmic leaflet — is transferred to the outer surface: There, it is recognised by a macrophage that then actively scavenges the dying cell."
Signalling section: " A classic example of this is phosphatidylserine-triggered phagocytosis. Normally, phosphatidylserine is asymmetrically distributed in the cell membrane and is present only on the interior side. During programmed cell death a protein called a scramblase equilibrates this distribution, displaying phosphatidylserine on the extracellular bilayer face. The presence of phosphatidylserine then triggers phagocytosis to remove the dead or dying cell." Polar Apposite (talk) 20:54, 18 November 2022 (UTC)
thread_title:  Repetition.