Our original sbeadex chemistry utilises a novel two-step binding
mechanism to bind and purify nucleic acids, in a 5-step protocol
(post-lysis) that requires approximately 45 minutes processing time. The
sbeadex beads allow efficient and high-quality purification of both
small and large nucleic acid fragments without centrifugation steps. The
beads are double-coated, resulting in a unique dual binding protocol
that allows elution of ultrapure nucleic acids into water, significantly
reducing solvent carryover that might affect downstream applications.
sbeadex Lightning nucleic acid purification protocol. By utilising a
revolutionary novel one-step binding mechanism, sbeadex Lightning
reduces the traditional magnetic bead-based nucleic acid purification
workflow to a 3-step protocol (post-lysis) that typically requires just
5 minutes processing time.
Applications
-
DNA purification for many downstream applications such as PCR/qPCR,
RT-PCR or NGS
-
Applicable to a wide range of sample types including plant and animal
tissues (tables 1 and 2)
| Plant tissue |
| leaf |
| cucumber leaves |
barley leaves |
carrot leaves |
| brassica leaves |
corn leaves |
melon leaves |
| tomato leaves |
potato leaves |
cannabis leaves |
| pepper leaves |
pea leaves |
oat leaves |
| wheat leaves |
parsley |
|
| seed |
| corn seed |
canola seed |
soy seed |
| sunflower seed |
|
|
| fruit |
| blackberry |
blueberry |
potato |
Table 1: Plant sample types successfully tested using the sbeadex
Lightning chemistry for DNA purification.
| Animal tissue |
| bovine ear punch |
mouse ears |
| bovine meat |
mouse tail |
| bovine hairs |
Chicken (wing) |
| pig ear punches |
Salmon (fin) |
| Trout (muscle biopsy) |
Beef (muscle tissue biopsy) |
|
Biological fluids
|
| chicken blood (in storage buffer) |
Table 2: Animal sample types successfully tested using the sbeadex
Lightning chemistry for DNA purification.
sbeadex Lightning has been successfully tested against popular plant DNA
purification kits from market-leading competitors, showing comparable or
even better DNA purities and yields (table 3) as well as a clear
reduction of protocol steps and time – in addition to significant
savings regarding consumption of plastic consumables and amount of
liquid waste (table 4). Moreover, DNA isolated using sbeadex Lightning
also showed a very good integrity compared to DNA isolated using those
competitor kits (figure 4).
Please find a complete list of already tested plant and animal samples
with a recommendation of the appropriate Core Kit and Lysis
buffers/conditions
here.
| Purification chemistry |
Yield via fluorescence
[µg DNA/ mg sample]
|
Yield via UV-Vis
[µg DNA /mg sample]
|
A260/280 |
A260/230 |
| sbeadex Lightning (upscaled) |
0.5 |
0.9 |
1.8 |
1.5 |
| sbeadex maxi plant (upscaled) |
0.3 |
0.6 |
1.9 |
1.4 |
| Competitor A |
0.03 |
0.3 |
1.9 |
0.1 |
| Competitor B |
0.2 |
1.1 |
1.8 |
2.0 |
| Competitor C |
0.02 |
0.1 |
1.6 |
0.4 |
| Competitor D |
0.3 |
0.5 |
1.9 |
1.8 |
| Competitor E |
0.4 |
0.6 |
1.7 |
0.7 |
| Competitor F |
0.1 |
0.1 |
1.8 |
2.3 |
Table 3: A summary of DNA quantity and purity values for sbeadex
Lightning, original sbeadex, and market-leading competitors. Values are
based on processing of 15 mg maize leaf tissue samples. Both the sbeadex
Lightning protocol and the sbeadex maxi plant protocol were upscaled to
400 µL lysate input to account for the different lysate input amounts
used by competitors.
| Purification chemistry |
Protocol steps* |
Mean protocol time per sample** |
Mean plastic waste per sample |
Liquid waste per sample |
| sbeadex Lightning (upscaled) |
3 |
5 min |
2 g |
1.8 mL |
| Competitor A |
5 |
20 min |
6 g |
1.8 mL |
| Competitor B |
6 |
45 min |
9 g |
3.4 mL |
| Competitor C |
7 |
24 min |
7 g |
2.6 mL |
| Competitor D |
5 |
26 min |
8 g |
3.4 mL |
| Competitor E |
8 |
34 min |
9 g |
3.4 mL |
| Competitor F |
8 |
29 min |
19 g |
2.1 mL |
Table 4: A summary of the key savings for sbeadex Lightning compared to
original sbeadex protocols and market-leading competitors. This table
summarises the savings in protocol time, protocol steps, plastic
consumables, and liquid waste. Values are based on processing of 15 mg
maize leaf tissue samples. The sbeadex Lightning protocol was upscaled
to 400 µL lysate input to account for the different lysate input amounts
used by competitors. *excluding lysis step ** manual protocol
Figure 4: Gel electrophoresis image of DNA purified from maize leaf with
sbeadex Lightning and competitor kits (compare figure 2 and table 2).
The 0.8 % agarose gel was run at 80 V for 45 minutes and subsequently
stained with ethidium bromide. Per sample, 6 µL purified DNA was
added to each lane. 1: sbeadex Lightning (upscaled), 2: Competitor D, λ:
100 ng lambda DNA, 3: Competitor C, 4: Competitor B, 5: Competitor E, 6:
Competitor F, 7: Competitor A.