Method for small volume nucleic acid synthesis
A method for synthesis of nucleic acids, with particular use for synthesis of cDNA. The method allows application of the cDNA to a microarray without the need for concentration or purification of the cDNA post-cDNA synthesis.
1 . A method comprising:
taking an initial sample of RNA;
reverse transcribing the sample of RNA to synthesize a sample of cDNA;
and,
applying the sample of cDNA to a microarray;
wherein the sample of cDNA is applied to the microarray without concentration of the sample of cDNA after the synthesis of the cDNA and before application of the sample of cDNA to the microarray.
2 . A method as claimed in claim 1 , wherein the sample of cDNA is applied to the microarray without purification of the sample of cDNA after synthesis of the sample of cDNA and before application of the sample of cDNA to the microarray.
3 . A method as claimed in claim 1 , wherein the initial sample of RNA comprises total RNA.
4 . A method as claimed in claim 1 , wherein the initial sample of RNA comprises messenger RNA.
5 . A method as claimed in claim 1 , wherein the initial sample of RNA comprises from approximately 0.1 to 1 micrograms of total RNA.
6 . A method as claimed in claim 1 , wherein the initial sample of RNA comprises from approximately 1 to 1000 nanograms of mRNA.
7 . A method as claimed in claim 1 , further comprising the step of hybridizing a dendrimer to the cDNA in the sample of cDNA.
8 . A method as claimed in claim 1 , further comprising the step of hybridizing a dendrimer to the cDNA in the sample of cDNA, wherein the dendrimer is labeled to produce a detectable signal.
9 . A method as claimed in claim 1 , further comprising the step of hybridizing a dendrimer to the cDNA in the sample of cDNA, wherein the dendrimer is labeled to produce a detectable signal, and wherein the dendrimer is labeled with greater than 500 fluorescent dyes on each dendrimer molecule.
10 . A method comprising:
taking an initial sample of RNA;
reverse transcribing the sample of RNA to synthesize a sample of cDNA;
applying the sample of cDNA to a microarray, wherein the microarray has nucleic acid samples affixed thereto;
allowing the cDNA in the sample of cDNA to hybridize to the nucleic acid samples on the microarray; and,
hybridizing a dendrimer to the cDNA in the sample of cDNA;
wherein the sample of cDNA is applied to the microarray without concentration of the sample of cDNA after the synthesis of the cDNA and before application of the sample of cDNA to the microarray.
11 . A method as claimed in claim 10 , wherein the sample of cDNA is applied to the microarray without purification of the sample of cDNA after synthesis of the sample of cDNA and before application of the sample of cDNA to the microarray.
12 . A method as claimed in claim 10 , wherein the initial sample of RNA comprises total RNA.
13 . A method as claimed in claim 10 , wherein the initial sample of RNA comprises messenger RNA.
14 . A method as claimed in claim 10 , wherein the initial sample of RNA comprises from approximately 0.1 to 1 micrograms of total RNA.
15 . A method as claimed in claim 10 , wherein the initial sample of RNA comprises from approximately 1 to 1000 nanograms of mRNA.
16 . A method as claimed in claim 10 , further comprising the step of hybridizing a dendrimer to the cDNA in the sample of cDNA, wherein the dendrimer is labeled to produce a detectable signal.
17 . A method as claimed in claim 10 , further comprising the step of hybridizing a dendrimer to the cDNA in the sample of cDNA, wherein the dendrimer is labeled to produce a detectable signal, and wherein the dendrimer is labeled with greater than 500 fluorescent dyes on each dendrimer molecule.