scholarly journals Chemical reaction within a compact non-porous crystal containing molecular clusters without the loss of crystallinity

2017 ◽  
Vol 8 (8) ◽  
pp. 5356-5361 ◽  
Author(s):  
Ming Zhang ◽  
Tao Yang ◽  
Zhenxing Wang ◽  
Xiong-Feng Ma ◽  
Yuexing Zhang ◽  
...  

A yellow crystal with {FeII4O4} cubes is modified to a black crystal with {FeIII4O4} cubes via a SC–SC transformation.

Author(s):  
Dai Dalin ◽  
Guo Jianmin

Lipid cytochemistry has not yet advanced far at the EM level. A major problem has been the loss of lipid during dehydration and embedding. Although the adoption of glutaraldehyde and osmium tetroxide accelerate the chemical reaction of lipid and osmium tetroxide can react on the double bouds of unsaturated lipid to from the osmium black, osmium tetroxide can be reduced in saturated lipid and subsequently some of unsaturated lipid are lost during dehydration. In order to reduce the loss of lipid by traditional method, some researchers adopted a few new methods, such as the change of embedding procedure and the adoption of new embedding media, to solve the problem. In a sense, these new methods are effective. They, however, usually require a long period of preparation. In this paper, we do research on the fiora nectary strucure of lauraceae by the rapid-embedding method wwith PEG under electron microscope and attempt to find a better method to solve the problem mentioned above.


2015 ◽  
Vol E98.C (2) ◽  
pp. 123-126
Author(s):  
Takeshi FUKUDA ◽  
Tomokazu KURABAYASHI ◽  
Hikari UDAKA ◽  
Nayuta FUNAKI ◽  
Miho SUZUKI ◽  
...  

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