Dear Maayan,

regret not to be able to provide an exact protocol for TEM...

It would be also interesting which approach (Pre/Postembedding?) you intend.

Matter isn't really easy, I guess

Just to define for the non-specialist (like me):

DOPC=dioleylphosphatidylcholine

DMPC=dimiristoylphosphatidylcholine

It seems that there is not much specific literature about / using Immuno-TEM of/on

phosphatidylcholine itself.

Also no specific TEM-Immunoloc. literature in my own files on such.

For sure you have in your files the 2005 Article in

Histol Histopathol (2005) 20: 531-536

Immunohistochemical localization of phosphatidylcholine in rat mandibular condylar surface and lower joint cavity by cryotechniques (IHC, not ICC!)

Z. Zea-Aragon, N. Terada, K. Ohtsuki, M. Ohnishi and S. Ohno

http://digitum.um.es/jspui/bitstream/10201/22465/1/Immunohistochemical%20localization%20of.pdf

or

Hepatology 43/3, 506-514,2006

Localization of Oxidized Phosphatidylcholine in Nonalcoholic Fatty Liver Disease: Impact on Disease Progression

Yoshihiro Ikura, Masahiko Ohsawa, Takehisa Suekane, Hiroko Fukushima, Hiroyuki Itabe, Hisato Jomura, Shuhei Nishiguchi, Takeshi Inoue, Takahiko Naruko, Shoichi Ehara, Norifumi Kawada, Tetsuo Arakawa,9 and Makiko Ueda1

http://onlinelibrary.wiley.com/doi/10.1002/hep.21070/pdf

Data on PC, DOPC & DMPC can be found also on: http://www.science.gov/topicpages/d/dimyristoyl+phosphatidylcholine+lipid.html and

http://www.cholesterolresearch.net/articleindex.php?year=2001

(CTRL"F" inserting e.g. phosphatidyl ) .

Best wishes,

Wolfgang

Dear Wolfgang,

Thank you very much for the answer, I will check the links that you suggested.

The materials are dioleylphosphatidylcholine and dimiristoylphosphatidylcholine like you said. After I did some research, I decided to use phosphatidylserin (PS) instead of phosphatidylcholine, because I can label it by using Annexin V that has strong affinity to PS.

Maybe I need to change this question by asking about lipids labeling for TEM and not specific lipids labeling. I need to find a way to label lipids by connecting gold nano particles to it (in some way). First, I think I know how to do that with PS, but if there is some way to label any other lipids, it will be great for my research.

All the best,

Maayan