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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...

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Related Experiment Video

Updated: Jun 27, 2025

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Published on: April 10, 2018

Highly Efficient Carbon Dioxide Electroreduction via DNA-Directed Catalyst Immobilization.

Gang Fan¹, Nathan Corbin¹, Minju Chung¹

¹Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.

|April 26, 2024

Summary

This summary is machine-generated.

DNA acts as a molecular "Velcro" to immobilize catalysts for electrochemical carbon dioxide (CO2) reduction. This strategy enhances catalyst stability and efficiency in converting CO2 to carbon monoxide (CO).

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Area of Science:

Electrochemistry
Catalysis
Biotechnology

Background:

Electrochemical reduction of carbon dioxide (CO2) is a key technology for converting industrial byproducts.
Immobilizing molecular catalysts onto electrode surfaces is crucial but challenging due to complex chemistries.
Existing methods require case-by-case optimization for catalyst immobilization.

Purpose of the Study:

To develop a generalizable strategy for immobilizing molecular catalysts on electrode surfaces.
To investigate the use of DNA as a molecular-scale "Velcro" for catalyst tethering.
To improve the stability and efficiency of catalysts for CO2 valorization.

Main Methods:

Utilized DNA hybridization to immobilize three porphyrin-based catalysts onto screen-printed carbon and carbon paper electrodes.
Investigated catalyst stability and performance at relevant electrochemical potentials.
Measured Faradaic efficiencies (FEs) for carbon monoxide (CO) generation.

Main Results:

Achieved nearly 100% immobilization efficiency using DNA hybridization.
Observed enhanced catalyst stability at relevant potentials.
Demonstrated lower overpotentials for CO generation and high FEs, reaching 79.1% for CO at -0.95 V vs SHE with DNA-tethered catalysts.

Conclusions:

DNA "Velcro" is a powerful and generalizable strategy for immobilizing molecular catalysts.
This approach significantly improves catalyst stability and efficiency for CO2 valorization.
The method is adaptable for various reactions in aqueous solutions.