Custom DNA and RNA oligonucleotides incorporating electroactive labels and redox-active reporters for electrochemical biosensors, aptamer sensors, surface-based detection systems and bioanalytical assay development.
Electrochemical oligonucleotides combine sequence-specific molecular recognition with redox-active reporter groups capable of generating measurable electrical signals.
These constructs are used in electrochemical biosensors, aptamer-based sensing platforms, surface-bound detection systems and emerging point-of-care diagnostic technologies.
Bio-Synthesis supports custom DNA and RNA oligonucleotides modified with ferrocene, methylene blue, anthraquinone and related electroactive labels. Reporters may be placed at the 5′ terminus, 3′ terminus or internal positions depending on sensor architecture.
Probe recognizes nucleic acid, aptamer ligand or molecular target.
Binding changes probe folding, distance or surface presentation.
Ferrocene, methylene blue or other label shifts relative to electrode.
Reporter undergoes oxidation or reduction at the sensor surface.
Measured current increases or decreases depending on assay design.
Reporter selection depends on sensor architecture, electrode surface, target type, spacer length and whether the assay is designed for signal-on or signal-off behavior.
Each reporter family offers different electrochemical behavior, hydrophobicity, surface compatibility and assay-design flexibility.
Reversible redox label for DNA sensors and surface-bound probes.
Popular redox reporter for aptamer sensors and conformational probes.
Redox-active reporter for charge-transfer and electrochemical studies.
5′ or 3′ placement for surface-bound probes, aptamer switches and electrode-proximity designs.
Internal reporter placement for structure-sensitive designs and custom signal architectures.
Redox labels can be paired with thiols or other anchors for gold and sensor surfaces.
Combine redox reporters with spacers, quenchers, biotin, thiols or click handles by review.
Electrochemical labels can be evaluated for DNA, RNA and modified oligonucleotide workflows.
Specialty electroactive labels and sensor-specific constructs available upon feasibility review.
Electrochemical probe performance depends on reporter identity, spacer architecture, electrode surface, probe density, folding behavior and assay readout.
Custom redox-labeled probes for electrochemical detection and biosensor development.
Electrochemical aptamer switches using methylene blue or other reporter systems.
Surface-compatible probes for molecular diagnostics, qPCR-adjacent workflows and assay development.
Electrochemical oligos for compact, instrument-compatible diagnostic platforms.
Probe designs for electrodes, gold surfaces, biosensors and solid-support systems.
Custom redox-labeled constructs for charge transport, electron transfer and mechanistic studies.
Explore related oligo modification and surface-conjugation services.
Include sequence, reporter, surface anchor, spacer, electrode format, scale and QC.
Selected references covering electrochemical DNA biosensors, electrochemical aptamer sensors, redox-labeled oligonucleotides, ferrocene reporters, methylene blue reporters, anthraquinone probes, and DNA-mediated charge transport. These citations are provided for scientific background and design context rather than product-performance claims.
Note: Electrochemical probe performance depends on redox label identity, reporter placement, spacer architecture, surface immobilization chemistry, electrode material, probe density, folding behavior, assay buffer and detection platform. Literature references provide general scientific context and should be evaluated within the specific electrochemical assay workflow.
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