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DNA Isolation

DNA Isolation

DNA isolation protocols can be fast and straightforward or complex and time-consuming depending on the type and quality of DNA required for further processing. For example, plasmid DNA extraction is a bit more complicated than genomic DNA extraction because of the need for an appropriate lysis method to separate plasmid DNA from gDNA during isolation. However, for specific applications, such as long-range DNA sequencing that require a good yield of high- quality DNA samples, we need to follow...

DNA Isolation

DNA Isolation

DNA from cells is required for many biotechnology and research applications, such as molecular cloning. To remove and purify DNA from cells, researchers use various methods of DNA extraction. While the specifics of different protocols may vary, some general concepts underlie the process of DNA extraction.

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Related Experiment Video

Updated: Jan 17, 2026

Streamlined Purification of Plasmid DNA From Prokaryotic Cultures

Streamlined Purification of Plasmid DNA From Prokaryotic Cultures

Published on: January 5, 2011

The Filterprep: A simple and efficient approach for high-yield, high-purity plasmid DNA purification.

Yu-Hsuan Cheng¹, Yu-Jiu Wu¹, Yung-Chun Shih¹

¹Institute of Biochemistry and Molecular Biology, National Yang Ming Chiao Tung University, Taipei 112, Taiwan.

New Biotechnology

|September 14, 2025

Summary

Filterprep, a new hybrid plasmid DNA purification method, offers high yields and purity in under 40 minutes. This cost-effective technique simplifies workflows for molecular biology applications.

Keywords:

Biotechnology applications Cost-effective plasmid prep High-yield plasmid DNA extraction Molecular biology techniques Plasmid DNA purification

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Related Experiment Videos

Last Updated: Jan 17, 2026

Streamlined Purification of Plasmid DNA From Prokaryotic Cultures

Streamlined Purification of Plasmid DNA From Prokaryotic Cultures

Published on: January 5, 2011

Purifying Plasmid DNA from Bacterial Colonies Using the Qiagen Miniprep Kit

Purifying Plasmid DNA from Bacterial Colonies Using the Qiagen Miniprep Kit

Published on: July 29, 2007

High-Throughput DNA Plasmid Multiplexing and Transfection Using Acoustic Nanodispensing Technology

High-Throughput DNA Plasmid Multiplexing and Transfection Using Acoustic Nanodispensing Technology

Published on: August 8, 2019

Area of Science:

Molecular Biology
Biotechnology

Background:

Plasmid DNA purification is crucial but often resource-intensive.
Conventional methods may yield low-purity DNA; commercial kits are expensive and opaque.

Purpose of the Study:

To develop a cost-effective, transparent, and efficient plasmid DNA purification method.
To improve upon existing commercial kits in terms of yield, speed, and cost.

Main Methods:

A hybrid approach combining ethanol precipitation with a single spin-column cleanup.
Named the Filterprep method.

Main Results:

Rapid recovery of high-purity plasmid DNA in approximately 40 minutes.
Yields up to 5-fold greater than commercial midiprep kits.
Purified DNA compatible with transfection, protein expression, and reporter assays.

Conclusions:

Filterprep provides a transparent, cost-effective, and scalable alternative for plasmid DNA purification.
Suitable for high-throughput and resource-limited laboratories.
Purified plasmid DNA is stable for 12 months at -20 °C.