Related Experiment Video
Updated: Jul 10, 2026

12:31
A Method for Selecting Structure-switching Aptamers Applied to a Colorimetric Gold Nanoparticle Assay
Published on: February 28, 2015
Rational design of switchable aptamer sensors through structural and thermodynamic tuning.
Andrew Reynolds1, Hari Timilsina1, Pavel Anzenbacher1
1Department of Chemistry and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, OH, USA. tanx@bgsu.edu.
Summary
Designing fluorogenic fusion aptamer sensors is complex. This study introduces a streamlined method using predicted equilibrium probability for Broccoli aptamer-based ADP sensors, reducing experimental screening.
Area of Science:
- Molecular Biology
- Biotechnology
- Sensor Technology
Background:
- Fluorogenic fusion aptamer sensor development is labor-intensive and costly.
- Secondary structure prediction can optimize experimental screening of aptamer designs.
Purpose of the Study:
- To streamline the design process for fluorogenic fusion aptamer sensors.
- To develop a Broccoli aptamer-based adenosine diphosphate (ADP) sensor using predicted equilibrium probability as a design feature.
Main Methods:
- Utilized secondary structure prediction software to analyze aptamer folding.
- Incorporated predicted equilibrium probability as a key design parameter.
- Developed an adenosine diphosphate (ADP) sensor utilizing the Broccoli aptamer.
Main Results:
- Demonstrated a more streamlined approach to fluorogenic fusion aptamer sensor design.
- Established landmarks to guide the exploration of sensor-transducer interactions.
- Successfully created a Broccoli aptamer-based ADP sensor.
Conclusions:
- Predicted equilibrium probability is a viable design feature for aptamer sensors.
- This approach reduces the complexity and cost associated with aptamer sensor development.
- The findings provide a foundation for more efficient design of aptamer-based biosensors.

