Source 1primary paper2023MED
Toolkit/PMNT mixed with single-stranded DNA color reporter
PMNT mixed with single-stranded DNA color reporter
Also known as: PMNT mixed with ssDNA
Taxonomy: Mechanism Branch / Architecture. Workflows sit above the mechanism and technique branches rather than replacing them.
Summary
PMNT mixed with single-stranded DNA is a color reporter component used in the Cas12aVIP nucleic acid detection system. In the cited 2023 study, it was integrated with recombinase polymerase amplification and CRISPR/Cas12a to support rapid visual detection of Escherichia coli O157:H7.
Usefulness & Problems
Why this is useful
This component is useful as part of a visual readout module in a combined amplification and CRISPR-based detection workflow. The available evidence indicates utility for rapid visual nucleic acid detection, but it does not provide standalone performance data for the PMNT-ssDNA reporter itself.
Problem solved
It helps address the need for a rapid and visual method for nucleic acid detection in the Cas12aVIP assay format. The cited application was detection of Escherichia coli O157:H7.
Problem links
converts nucleic acid-dependent state changes into visible color output
LiteratureIt enables visual signal generation without instrument-based fluorescence readout. This supports point-of-care style detection by naked eye.
Source:
It enables visual signal generation without instrument-based fluorescence readout. This supports point-of-care style detection by naked eye.
Published Workflows
Objective: Develop a rapid, accurate, visual point-of-care nucleic acid detection method for Escherichia coli O157:H7 using a CRISPR/Cas12a-PMNT assay format.
Why it works: The workflow combines nucleic acid amplification with CRISPR/Cas12a detection and a PMNT/ssDNA color reporter so that target presence is converted into a visible red/yellow color change observable by eye.
target-DNA-triggered CRISPR/Cas12a detectionPMNT conformational color change for colorimetric readoutrecombinase polymerase amplificationCRISPR/Cas12a assaycolorimetric reporting
Stages
- 1.Target nucleic acid amplification(functional_characterization)
RPA is included as an assay component in the combined method to support downstream target detection.
Selection: Amplify target nucleic acid using recombinase polymerase amplification before CRISPR/Cas12a and colorimetric readout.
- 2.CRISPR/Cas12a target detection with PMNT color transduction(confirmatory_validation)
This stage provides the assay's visual colorimetric readout under natural light.
Selection: Use the CRISPR/Cas12a system together with PMNT mixed with ssDNA to convert target presence into a red/yellow colorimetric output.
- 3.Specificity assessment against nontargeted bacteria(secondary_characterization)
This stage checks that the visual detection method remains specific for the intended target.
Selection: Evaluate whether the method shows high specificity and no interference from other nontargeted bacteria.
Taxonomy & Function
Primary hierarchy
Mechanism Branch
Architecture: A reusable architecture pattern for arranging parts into an engineered system.
Mechanisms
colorimetric reportingTechniques
No technique tags yet.
Target processes
editingrecombinationImplementation Constraints
cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationoperating role: sensor
Implementation, as supported by the source, involves mixing PMNT with single-stranded DNA as a color reporter within a workflow that also includes recombinase polymerase amplification and a CRISPR/Cas12a system. No additional construct design, cofactor requirements, expression system details, or formulation parameters are provided in the supplied evidence.
The supplied evidence does not describe the reporter's chemical composition beyond PMNT mixed with single-stranded DNA, nor does it report wavelengths, signal contrast, limits of detection, or robustness. Validation is only described in the context of a single Cas12aVIP study for Escherichia coli O157:H7.
Validation
Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication
Supporting Sources
Ranked Claims
Cas12aVIP combines recombinase polymerase amplification, a CRISPR/Cas12a system, and a PMNT mixed with single-stranded DNA color reporter.
Cas12aVIP combines recombinase polymerase amplification, a CRISPR/Cas12a system, and a PMNT mixed with single-stranded DNA color reporter.
Cas12aVIP combines recombinase polymerase amplification, a CRISPR/Cas12a system, and a PMNT mixed with single-stranded DNA color reporter.
Cas12aVIP combines recombinase polymerase amplification, a CRISPR/Cas12a system, and a PMNT mixed with single-stranded DNA color reporter.
Cas12aVIP combines recombinase polymerase amplification, a CRISPR/Cas12a system, and a PMNT mixed with single-stranded DNA color reporter.
Cas12aVIP combines recombinase polymerase amplification, a CRISPR/Cas12a system, and a PMNT mixed with single-stranded DNA color reporter.
Cas12aVIP combines recombinase polymerase amplification, a CRISPR/Cas12a system, and a PMNT mixed with single-stranded DNA color reporter.
Cas12aVIP combines recombinase polymerase amplification, a CRISPR/Cas12a system, and a PMNT mixed with single-stranded DNA color reporter.
The paper proposes Cas12aVIP as a rapid and visual nucleic acid detection method.
The paper proposes Cas12aVIP as a rapid and visual nucleic acid detection method.
The paper proposes Cas12aVIP as a rapid and visual nucleic acid detection method.
The paper proposes Cas12aVIP as a rapid and visual nucleic acid detection method.
The paper proposes Cas12aVIP as a rapid and visual nucleic acid detection method.
The paper proposes Cas12aVIP as a rapid and visual nucleic acid detection method.
The paper proposes Cas12aVIP as a rapid and visual nucleic acid detection method.
The paper proposes Cas12aVIP as a rapid and visual nucleic acid detection method.
Detection with Cas12aVIP was accomplished in 40 minutes and could be observed by the naked eye under natural light.
detection time 40 min
Detection with Cas12aVIP was accomplished in 40 minutes and could be observed by the naked eye under natural light.
detection time 40 min
Detection with Cas12aVIP was accomplished in 40 minutes and could be observed by the naked eye under natural light.
detection time 40 min
Detection with Cas12aVIP was accomplished in 40 minutes and could be observed by the naked eye under natural light.
detection time 40 min
Detection with Cas12aVIP was accomplished in 40 minutes and could be observed by the naked eye under natural light.
detection time 40 min
Detection with Cas12aVIP was accomplished in 40 minutes and could be observed by the naked eye under natural light.
detection time 40 min
Detection with Cas12aVIP was accomplished in 40 minutes and could be observed by the naked eye under natural light.
detection time 40 min
Detection with Cas12aVIP was accomplished in 40 minutes and could be observed by the naked eye under natural light.
detection time 40 min
In the reported PMNT/ssDNA reporter system, the solution is red in the absence of target DNA and yellow when target DNA is detected, enabling colorimetric DNA detection.
In the reported PMNT/ssDNA reporter system, the solution is red in the absence of target DNA and yellow when target DNA is detected, enabling colorimetric DNA detection.
In the reported PMNT/ssDNA reporter system, the solution is red in the absence of target DNA and yellow when target DNA is detected, enabling colorimetric DNA detection.
In the reported PMNT/ssDNA reporter system, the solution is red in the absence of target DNA and yellow when target DNA is detected, enabling colorimetric DNA detection.
In the reported PMNT/ssDNA reporter system, the solution is red in the absence of target DNA and yellow when target DNA is detected, enabling colorimetric DNA detection.
In the reported PMNT/ssDNA reporter system, the solution is red in the absence of target DNA and yellow when target DNA is detected, enabling colorimetric DNA detection.
In the reported PMNT/ssDNA reporter system, the solution is red in the absence of target DNA and yellow when target DNA is detected, enabling colorimetric DNA detection.
In the reported PMNT/ssDNA reporter system, the solution is red in the absence of target DNA and yellow when target DNA is detected, enabling colorimetric DNA detection.
Cas12aVIP yielded high specificity with no interference from other nontargeted bacteria.
Cas12aVIP yielded high specificity with no interference from other nontargeted bacteria.
Cas12aVIP yielded high specificity with no interference from other nontargeted bacteria.
Cas12aVIP yielded high specificity with no interference from other nontargeted bacteria.
Cas12aVIP yielded high specificity with no interference from other nontargeted bacteria.
Cas12aVIP yielded high specificity with no interference from other nontargeted bacteria.
Cas12aVIP yielded high specificity with no interference from other nontargeted bacteria.
Cas12aVIP yielded high specificity with no interference from other nontargeted bacteria.
Cas12aVIP has potential for rapid nucleic acid detection applications without requiring technical expertise or ancillary equipment.
Cas12aVIP has potential for rapid nucleic acid detection applications without requiring technical expertise or ancillary equipment.
Cas12aVIP has potential for rapid nucleic acid detection applications without requiring technical expertise or ancillary equipment.
Cas12aVIP has potential for rapid nucleic acid detection applications without requiring technical expertise or ancillary equipment.
Cas12aVIP has potential for rapid nucleic acid detection applications without requiring technical expertise or ancillary equipment.
Cas12aVIP has potential for rapid nucleic acid detection applications without requiring technical expertise or ancillary equipment.
Cas12aVIP has potential for rapid nucleic acid detection applications without requiring technical expertise or ancillary equipment.
Cas12aVIP has potential for rapid nucleic acid detection applications without requiring technical expertise or ancillary equipment.
Approval Evidence
1 source2 linked approval claimsfirst-pass slug pmnt-mixed-with-single-stranded-dna-color-reporter
a cationic-conjugated polythiophene derivative (poly[3-(3'-N,N,N-triethylamino-1'-propyloxy)-4-methyl-2,5-thiophene hydrochloride] (PMNT) mixed with single-stranded DNA (ssDNA))
Source:
mechanism or designsupports
Cas12aVIP combines recombinase polymerase amplification, a CRISPR/Cas12a system, and a PMNT mixed with single-stranded DNA color reporter.
Source:
readout behaviorsupports
In the reported PMNT/ssDNA reporter system, the solution is red in the absence of target DNA and yellow when target DNA is detected, enabling colorimetric DNA detection.
Source:
Comparisons
Source-backed strengths
The main supported strength is its incorporation into a rapid and visual detection method when combined with recombinase polymerase amplification and CRISPR/Cas12a. The evidence specifically supports assay-level integration rather than independent characterization of reporter sensitivity, specificity, or dynamic range.
Source:
Detection with Cas12aVIP was accomplished in 40 minutes and could be observed by the naked eye under natural light.
Compared with CaRTRIDGE
PMNT mixed with single-stranded DNA color reporter and CaRTRIDGE address a similar problem space because they share editing, recombination.
Shared frame: same top-level item type; shared target processes: editing, recombination
Compared with intron-containing CRISPRa construct
PMNT mixed with single-stranded DNA color reporter and intron-containing CRISPRa construct address a similar problem space because they share editing, recombination.
Shared frame: same top-level item type; shared target processes: editing, recombination
Compared with microfluidic organ-on-chip platforms
PMNT mixed with single-stranded DNA color reporter and microfluidic organ-on-chip platforms address a similar problem space because they share editing, recombination.
Shared frame: same top-level item type; shared target processes: editing, recombination
Strengths here: looks easier to implement in practice.
Ranked Citations
- 1.