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Updated: May 21, 2026
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Phthalic Acid Ester-Binding DNA Aptamer Selection, Characterization, and Application to an Electrochemical Aptasensor
Published on: March 21, 2018
Comparison of different methods for generation of single-stranded DNA for SELEX processes.
M Svobodová1, A Pinto, P Nadal
1Nanobiotechnology and Bioanalysis group, Department of Chemical Engineering, Universitat Rovira i Virgili, Tarragona, Spain.
Analytical and Bioanalytical Chemistry
|June 27, 2012
Summary
Generating single-stranded DNA (ssDNA) is vital for SELEX aptamer selection. This study compares methods for ssDNA generation, evaluating quality and yield for optimal molecular biology applications.
Area of Science:
- Molecular Biology
- Biotechnology
- Genomics
Background:
- Single-stranded DNA (ssDNA) is essential for molecular biology techniques like sequencing and DNA chip technology.
- ssDNA is critical for aptamer selection via Systematic Evolution of Ligands by EXponential enrichment (SELEX).
Purpose of the Study:
- To comparatively analyze common ssDNA generation methods for SELEX.
- To evaluate a novel combined method for enhanced ssDNA generation efficiency.
Main Methods:
- Comparative study of asymmetric PCR, enzyme digestion, and magnetic separation for ssDNA generation.
- Evaluation of a new technique combining asymmetric PCR and enzyme digestion.
- Quality assessment using electrophoretic analysis.
- Yield measurement via Enzyme-Linked OligoNucleotide Assay (ELONA).
Main Results:
- Electrophoretic analysis determined the quality of ssDNA generated by each method.
- ELONA quantified the yield of ssDNA produced.
- The combined asymmetric PCR and enzyme digestion method was assessed for its efficiency.
Conclusions:
- The study provides a comparative analysis of ssDNA generation techniques for SELEX.
- Findings aid in selecting the most efficient method for specific molecular biology applications.
- Optimization of ssDNA generation is crucial for successful aptamer selection and downstream applications.
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