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Formaldehyde

Formaldehyde

(Science: chemical) Commonly used fixative and antibacterial agent. As a fixative it is cheap and tends to cause less denaturation of proteins than does glutaraldehyde, particularly if used in a well buffered solution (buffered formalin, formal saline).

old formaldehyde solutions usually contain cross linking contaminants and it is therefore often preferable to used a formaldehyde generating agent such as paraformaldehyde. Formalin fumes, particularly in conjunction with hydrochloric acid vapour, are potently carcinogenic.


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Newbie question about the first life

... b) enzymes (biocatalysts). An example of this would be the synthesis of the amino acid serine in the primitive atmosphere, thus: two molecules of formaldehyde condense to form glycoaldehyde, which Strecker synthesis could have converted into serine using glycoaldehyde, hydrogen cyanide and water. ...

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by piscilactovegetarian
Tue Feb 25, 2014 10:21 am
 
Forum: Molecular Biology
Topic: Newbie question about the first life
Replies: 14
Views: 8431

Animal Heart Preservation/Music Project

... A DIFFERENT FORUM PLEASE LET ME KNOW. Hello, I am looking for someone who is based in London who has experience in preserving an animal heart in a formaldehyde solution. I need someone to help me undertake this task, in doing so you would be taking part in a rather exciting and professional music ...

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by accidental
Wed Jul 21, 2010 3:13 pm
 
Forum: General Discussion
Topic: Animal Heart Preservation/Music Project
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Cloning: Preserving DNA of a dead eagle

... you keep it at room temperature, than you will lose even the solid CO2, so the question is, whether you wish to cool it or keep it at RT. I think formaldehyde solution is usually used for animal preservation, isn't it? Althrought that will probably affect the DNA...

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by JackBean
Tue Nov 24, 2009 4:37 am
 
Forum: Genetics
Topic: Cloning: Preserving DNA of a dead eagle
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Re: Important unknown nanotech within humans

... acid being a highy common food preservative,sodium chlorite is present in toothpast,chewing gum,shampoo and aqueous cosmetic formulations,.formaldehyde is present in tobocco smoke, resins, crease resistant fabrics and aqueous cosmetic formulations such as shampoos, conditioners, shower ...

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by vincio
Tue Feb 10, 2009 7:22 am
 
Forum: Molecular Biology
Topic: Important unknown nanotech within humans
Replies: 32
Views: 159683

'asian flush syndrom' and methanol intoxication

so with asian flush syndrome they have underactive aldehyde dehydrogenase right? and so methanol is converted to formaldehyde and this is toxic when it builds up... therefore people with asian flush syndrome would be more susceptible than someone who metabolizes the aldehyde form ...

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by dakims
Sat Dec 13, 2008 4:42 pm
 
Forum: Molecular Biology
Topic: 'asian flush syndrom' and methanol intoxication
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