blood RNA,RNA extraction,biospecimen,DNA extraction,cell viability ,preservative,random mutagenesis rocky
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AquaPlasmid is a multifunctional reagent for plasmid DNA purification without using columns. This single solution completes cell suspension, cell lysis, plasmid DNA extraction and cell debris removal in a single tube. AquaPlasmid is nontoxic. The multifunctionality makes AquaPlasmid the most economic ($0.66/miniprep) and environment-friendly (nontoxic) plasmid purification product on the market. The isolated plasmid DNA is pure and suitable for all downstream applications, including automated DNA sequencing. 




AquaPlasmid extracts plasmid DNA without using alkaline lysis or denaturing the DNA.


AquaPlasmid completes cell suspension, cell lysis, plasmid extraction and debris removal in a single tube.


A small 60-ml AquaPlasmid kit can be used for 300 mini, 30 midi, or 3 maxi preps.


No phenol, no chloroform, and no guanidine salts.

Lowest cost

Only $0.66/miniprep, 1/3 of column-based purification kits.


AquaPlasmid purified DNA is pure and suitable for automated DNA sequencing.


Comparison of AquaPlasmid and column-based plasmid purification

   Column-based  AquaPlasmid
Cell lysis Alkaline lysis Non-alkaline lysis

Isolation mechanism

Selective binding

Selective extraction

Isolation format Solid support

Aqueous solution 




# of Solutions

7 1

Use toxic chemicals 

Guanidine salts* None
Cost ($/miniprep) 2.00 0.66

* Column-based plasmid purification methods use buffers containing concentrated guanidine salts. They may contaminate your centrifuges, tube racks, counters, floors, sinks and sewage. When guanidine salts come in contact with Bleach (sodium hypochlorite), toxic and mutagenic gases will be released into the lab. Furthermore, when buffers containing guanidine salts are dumped into the sewage, they may react with Bleach from household and industrial washers. The toxic reaction products could harm the aquatic lives.

Brief Protocol

1. Harvest the Cells

Transfer 1.5 ml of overnight bacterial culture to a 1.7-ml microfuge tube. Centrifuge at 14,000 xg for 1 min at 22 °C to pellet the bacteria. Aspirate or flip the tube forcefully a few times to remove the culture medium as completely as possible.

2. Lyse the Cells

Add 200 ul of AquaPlasmid solution to the cell pellet. Immediately vortex for 10-20 sec to fully suspend the cells. Incubate at 22 °C for 5 min to lyse the cells. Touch-vortex (1-2 sec on) at top speed for 2 times (IMPORTANT: Do not over-vortex or it could cause genomic DNA contamination.).

3. Remove the Debris

Incubate the crude lysate at -20 °C for 5 min or on ice for 10 min to induce precipitation. Centrifuge at 14,000 xg for 5 min at 22 °C to pellet the cellular debris (centrifuging for 10 min at 4 °C may produce tighter debris pellet).

4. Pellet the Plasmid DNA

Transfer the clear lysate (~200 ul) to a clean 0.5-ml microfuge tube. Add 0.5 vol (~100 ul) of isopropanol to the lysate (do not use more than 0.7 vol of isopropanol to reduce small RNA contamination). Touch-vortex at top-speed 5-10 times to mix well. Centrifuge at 14,000 xg for 5 min at 22 °C to pellet the plasmid DNA. Flip the tube (you may hold 6-10 tubes between your thumb and index finger at the same time) forcefully a few times to discard the supernatant.

5. Rinse the Plasmid DNA

To rinse the DNA pellet, overflow the tube with 70% ethanol from a squirt bottle (be sure to rinse the inside of the lid as well), and then flip the tube with a swirling motion to discard the ethanol solution. Flip the tube forcefully a few times and blot it on a paper towel to remove residual ethanol. Leave the tube upside down on the paper towel for 5 min to air-dry the DNA pellet. Add 50 ul of deionized water (or TE buffer) to the DNA pellet. Vortex to fully suspend the DNA pellet and incubate at 22 °C for 5 min. Centrifuge at 14,000 xg for 2 min to pellet any insoluble. Optional: transfer the DNA solution to a new tube.

Order Information

Product Name:    AquaPlasmidTM Kit 

Product Number:   1001, 1015, 1030, 1060

Application:    Isolation of plasmid DNA. For in vitro research use only.

Size:    The kit is sufficient for the preparation of

  • 1001: 5 minipreps
  • 1015: 75 minipreps
  • 1030: 150 minipreps, or 15 midipreps, or 1.5 maxipreps
  • 1060: 300 minipreps, or 30 midipreps, or 3 maxipreps

Kit Contents:   The AquaPlasmid Kit includes the following items

  • 1001: 1 ml AquaPlasmid solution, User Manual
  • 1015: 15 ml AquaPlasmid solution, User Manual
  • 1030: 30 ml AquaPlasmid solution, User Manual
  • 1060: 60 ml AquaPlasmid solution, User Manual


  • 1001: $10 each
  • 1015: $75 each
  • 1030: $149 each
  • 1060: $199 each
Ordering:    To order, please click the "BUY" button below. 



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