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DNA Microarrays

DNA Microarrays

Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...

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DNAzyme 10-23 - Based Nanomachines for Nucleic Acid Recognition

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Crystal Phase-Driven MnO₂-DNA as Editable Artificial Messengers Enabling a Bioinspired Array for High-Resolution

Shuo Wang¹, Yi Liu¹, Wanjun Long¹

¹The Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei Province, School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China.

|May 18, 2026

Summary

This summary is machine-generated.

This study introduces a novel gustatory-inspired pathway-signaling-recognition system (GPS) using manganese dioxide (MnO2) and DNA. The GPS array enables high-resolution detection of structurally similar organophosphorus compounds through unique digital encoding.

Keywords:

DNA adsorption bioinspired array biosensing inorganic oxides structurally similar compounds

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Area of Science:

Materials Science
Biotechnology
Analytical Chemistry

Background:

Enzyme cascades offer potential for recognizing similar compounds but require artificial messengers.
Manganese dioxide (MnO2) crystal surfaces facilitate DNA adsorption and separation.
Beta-manganese dioxide (β-MnO2) interacts with DNA via a surface potential-induced oxygen-vacancy mechanism.

Purpose of the Study:

To engineer artificial messengers using β-MnO2 and single-stranded DNA (ssDNA) for enzyme cascade integration.
To develop a gustatory-inspired pathway-signaling-recognition system (GPS) for high-resolution detection of organophosphorus compounds.
To establish a generalizable paradigm for high-resolution biosensing.

Main Methods:

Engineered β-MnO2-ssDNA as artificial messengers for cascading hydrolases and nucleases.
Utilized reductive product-mediated self-sacrifice and release of Mn2+ and ssDNA.
Developed a GPS-based array for differential optical signaling and digital encoding.

Main Results:

The GPS array precisely discriminated 19 structurally similar organophosphorus compounds.
Achieved high-resolution qualitative and quantitative assays for chlorpyrifos.
Demonstrated dynamic degradation monitoring in multidimensional samples.

Conclusions:

The MnO2-ssDNA interaction mechanism provides inorganic insights for biosensing.
The GPS-based array serves as a generalizable platform for high-resolution biosensing.
This system enhances the resolution for structurally similar organophosphorus compounds.