Wednesday, 26 December 2007
something is wrong??
I do the pcr yesterday, yes, there is the expect band after the gel detection although it is very weak and has some unspecific bands, but it does have. the strange thing is that when I do it again, there is nothing exclude the unspecific bands. I add all the things are same, something is wrong?
I have to check or do it again.
Posted by Tian at 08:12 0 comments
Tuesday, 25 December 2007
most people are on holidays
Now it is Merry X-MAS, most people are on holiday, I feel a litter lonely, but another thing is good that I can use all the PCR machine as I will. it is nice, I can do a lot of work now.
Posted by Tian at 06:55 0 comments
Monday, 24 December 2007
ND-1000 Spectrophotometer
here is some information about the Nanodrop
- ull-spectrum UV-Vis absorbance analyses (220-750nm)
- for measuring absorbance of DNA, RNA, dyes, proteins and microbial cell culture OD
- 1 ul of sample
- Large dynamic range: 2-3700 ng/ul of dsDNA
- No dilutions for most samples
- No consumables
- No cuvettes or capillaries
- 10 second measurement
- Small size: 20cm X 14cm
Posted by Tian at 13:25 0 comments
Labels: Nanodrop
Nanodrop I love it!
I have used several machine to test the concentration of my sample, I found that the result of the Nanodrop is the best, and it is reliable.
what is about your oppinion??
Posted by Tian at 13:09 0 comments
Labels: Nanodrop
Sunday, 23 December 2007
my experiment
I am trying to get a 5kb segment from the potato virus Y genome, I used the Phusion to amplify the fragment and used DYNAZYME (Both are from Finnzyme company) as control, there is a target band when using the Phusion, But there is nothing for DYNAZYME, so to get the long fragment the common taq enzyme usually are not good enough.
Posted by Tian at 12:19 0 comments
The PCR for the Long Product.
Sometimes it is difficult to got the long PCR product (such as 5kb), there are many influence facter, such as for the RT-PCR, The quality of the RNA, the Reverse Transcription, the primer, and the procedure of the PCR , and especially the Taq enzyme. but I think usually the Taq enzyme play an important role in this reaction. we need some taq which can amplify the long product, there are many kind of this enzyme.
Posted by Tian at 09:55 0 comments
Thursday, 20 December 2007
Potato disease!
I think we can find this kind of potato very often in our life, because potato is a main food in the europe and other countries! So what do you want to do with this?
It is easy to find out which kind of pathogen cause this.
Posted by Tian at 10:11 0 comments
Christmas day is coming!
the christmas is coming, So have a nice day!
Posted by Tian at 07:44 0 comments
Wednesday, 12 December 2007
do someone know which software can select the enzyme for the RFLP
I want to do the RFLP analysis, so i want to know how to select the enzyme? because i have a lot of sequences, i want to using it to distinguish different strain.
Posted by Tian at 04:45 0 comments
Tuesday, 11 December 2007
it is a little boring
i have come here for more than a month, i feel very lonely sometime, i need somebody chat with me ,especially the chinese people. i am missing my wife , i hope she can can here in the next few month.
i have to work hard, to remember everything, and also learn everything, sometimes i have to learn from the very beginning, such as molecular biology of the cell, it is a nice book, but i haven't finished the first chapter. i will try...
Posted by Tian at 22:57 0 comments
hi, this is my first blog.
this is my first blog. i will do something to make my life better.
Posted by Tian at 11:02 0 comments