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Custom qPCR probes to MERFISH—Probes Built for Precision, Sensitivity & Scale

Choose from dual-labeled qPCR probes, molecular beacons, FRET designs, MGB and Affinity-Enhanced chemistries, PNA FISH, branched DNA (bDNA) amplifiers, and complete MERFISH encoding/readout sets. We provide fast design support, RUO → cGMP-like manufacturing

Dual-Labeled qPCR TaqMan-Style Hydrolysis Molecular Beacons MGB Probes FRET Probes PNA Probes Multiplex qPCR Affinity-Enhanced Probes

qPCR probes built for precision, sensitivity, and multiplex performance

Bio-Synthesis manufactures custom qPCR probes for real-time PCR, RT-qPCR, genotyping, pathogen detection, copy number analysis, mutation screening, and multiplex assay development. Designs can be tuned for Tm, length, mismatch discrimination, dye/quencher pairing, signal-to-noise, purification level, and documentation needs.

What we make

  • 5′ reporter / 3′ quencher hydrolysis probes
  • TaqMan-style dual-labeled qPCR probes
  • Molecular beacons and FRET probe designs
  • MGB and affinity-enhanced short probes

Why it matters

  • Stronger fluorescence signal-to-noise
  • Improved SNP and mismatch discrimination
  • Cleaner multiplex channel balancing
  • Scalable RUO to GMP-like documentation support
Best for: gene expression, pathogen detection, SNP genotyping, copy number variation, oncology panels, pharmacogenomics, viral load assays, and multiplex qPCR workflows.
Reporter Quencher Fluorescent qPCR Detection
5′/3′

Reporter and quencher designs

qPCR

Hydrolysis, beacon, FRET formats

Multiplex

Dye/channel balancing support

QC

HPLC, PAGE, MS, CoA options

Core qPCR and hybridization probe formats

Nine core probe offerings presented as quick-scan cards. Each card links to the relevant Bio-Synthesis subpage for deeper design, chemistry, and ordering details.

qPCR • TaqMan®-style

Dual-Labeled qPCR Probes

5′ reporter / 3′ quencher hydrolysis probes for real-time PCR assays with strong signal-to-noise, fast cycling, and robust multiplexing.

Design Choices

qPCR Probe Options

Reporter/quencher libraries, internal quenchers, short-amplicon tuning, dark quencher selection, and multiplex qPCR kit support.

Minor Groove Binder

MGB Probes

Minor groove binder probe designs raise Tm for shorter probes and improve SNP, mutation, and mismatch discrimination.

Minor Groove Binder

Molecular Beacons

Stem-loop probes that fluoresce only upon target hybridization, useful for allele discrimination, multiplexing, and wash-free detection formats.

Ratiometric

FRET Probes

Donor–acceptor probe pairs for distance-dependent, ratiometric, LightCycler-style, or drift-resistant fluorescence readouts.

MERFISH • High-Plex

MERFISH Encoding & Readout Probes

Error-robust barcode probe sets and dye-balanced readouts for spatial transcriptomics and high-plex RNA imaging workflows.

Signal Amplification

bDNA Amplifier Probes

Branched DNA amplifier systems build layered signal amplification structures for brighter detection of low-copy RNA targets.

High Specificity

PNA FISH Probes

Peptide nucleic acid probes provide strong, salt-tolerant binding for rapid FISH/ISH identification and high-specificity hybridization.

LNA • BNA • cEt

Affinity-Enhanced Probes

Locked, bridged, and constrained nucleic acid modifications can shorten probe length and sharpen target discrimination.

qPCR probe service and ordering options

Bio-Synthesis can support sequence design, dye/quencher pairing, purification, QC, documentation, and scale-up for individual probes or panel projects.

Probe / Service Description Typical Use Options Code
Dual-Labeled qPCR Probe 5′ fluorescent reporter and 3′ dark quencher hydrolysis probe. Gene expression, pathogen detection, viral load, CNV FAM, HEX, VIC, ROX, Cy5, BHQ, QSY, IBFQ [qPCR-DL]
MGB qPCR Probe Short probe with minor groove binder for higher Tm. SNP genotyping, short amplicons, mutation detection MGB tail, dark quencher, dye selection [qPCR-MGB]
Molecular Beacon Hairpin probe with reporter and quencher that opens on target binding. Allele discrimination, multiplex detection, live-cell adjacent assays Stem design, dye/quencher pair, modified bases [qPCR-MB]
FRET Probe Set Donor and acceptor probe pair for distance-dependent readout. LightCycler-style assays, ratiometric detection Donor/acceptor dye pair, spacing review [qPCR-FRET]
Affinity-Enhanced Probe LNA/BNA/cEt-enhanced probe for stronger binding and specificity. Short targets, high-GC targets, SNP assays LNA, BNA, cEt, 2′ modifications [qPCR-AE]
Multiplex qPCR Panel Multi-probe set with channel balancing and dye/quencher review. Pathogen panels, oncology panels, pharmacogenomics Panel kitting, tube/plate format, CoA and QC [qPCR-MPX]

Design factors that improve qPCR probe performance

Successful qPCR probe performance depends on probe architecture, Tm alignment, reporter and quencher compatibility, target accessibility, mismatch discrimination, multiplex channel balancing, purification, and overall assay chemistry.

Tm, Length & Specificity

Probe melting temperature should typically remain above primer Tm to support stable target binding during amplification. Shorter probes may improve mismatch discrimination, especially for SNP or mutation assays.

  • Typical probe length: 18–35 nt
  • Probe Tm often 5–10 °C above primer Tm
  • MGB or LNA/BNA/cEt can support shorter probes
  • GC-rich targets may require adjusted probe placement

Dye & Quencher Pairing

Reporter and quencher selection affects signal intensity, background suppression, spectral separation, and multiplex compatibility across instrument channels.

  • Common reporters: FAM, HEX, VIC, TET, ROX, Cy3, Cy5
  • Dark quenchers: BHQ-1/2/3, QSY, IAbRQSp, 3IABkFQ
  • Balance reporter brightness with quencher efficiency
  • Reduce bleed-through in multiplex panels

Purification & Analytical QC

Dye-labeled qPCR probes often benefit from higher-purity workflows because truncated sequences or incomplete labeling can increase background and reduce assay consistency.

  • HPLC commonly recommended for dye-labeled probes
  • PAGE available for high-resolution cleanup
  • MS, analytical HPLC/UPLC, and CoA options
  • Tube, plate, pooled, normalized, or kitted formats

Advanced qPCR Design Support

Bio-Synthesis can support hydrolysis probes, molecular beacons, FRET probes, MGB probes, and affinity-enhanced probe chemistries for singleplex and multiplex qPCR workflows.

Hydrolysis Probes Molecular Beacons FRET MGB LNA / BNA / cEt Multiplex qPCR

Design Tip

For short SNP assays, pair MGB or affinity-enhancing chemistries with a dark quencher to improve mismatch discrimination while maintaining strong target affinity and fluorescence response.

  • Use dark quenchers for lower background
  • Avoid dye/channel overlap in multiplex panels
  • Review GC-rich or repetitive regions early
  • Match probe chemistry to platform and assay goal

qPCR probe service workflow

A more visual project path from assay review to finished, QC-supported qPCR probe delivery.

1

Assay Review

Confirm target sequence, assay type, primer/amplicon context, instrument channels, multiplex needs, and performance goals.

2

Chemistry Match

Select hydrolysis, beacon, FRET, MGB, LNA/BNA/cEt, reporter dye, quencher, spacer, and probe architecture.

3

Synthesis & QC

Manufacture, purify, quantify, and verify probes using HPLC, PAGE, MS, dye loading review, or CoA documentation.

4

Delivery Format

Deliver probes in tube, plate, pooled, normalized, lyophilized, liquid, kitted, or scale-up-ready formats.

Result: a custom qPCR probe package aligned with your assay chemistry, instrument channels, purification level, QC expectations, and delivery format.

Purification, analytical QC, and documentation support

Probe deliverables can be configured for research-use projects, development programs, and qualified scale-up needs.

Purification

  • Desalt for routine screening
  • HPLC for dye-labeled probes
  • PAGE for high-resolution purification
  • Custom purification pathways

Analytical QC

  • OD260 quantitation
  • Analytical HPLC or UPLC
  • Mass spectrometry where applicable
  • Dye loading and purity review

Documentation

  • Certificate of Analysis
  • Lot-linked documentation
  • Endotoxin testing on request
  • RUO to GMP-like support

What to include for a faster qPCR probe quote

Assay Details

  • Target sequence, accession, or amplicon
  • Assay type: expression, SNP, pathogen, CNV
  • Instrument and optical channels
  • Singleplex or multiplex format

Probe Requirements

  • Probe sequence or design request
  • Dye and quencher preference
  • MGB, LNA, BNA, cEt, or spacer needs
  • Scale, concentration, and format

QC & Delivery

  • Purification method
  • Analytical QC package
  • Tube, plate, pooled, or kitted delivery
  • CoA and documentation requirements

Frequently asked questions

FAQ

Which qPCR probe format should I choose?
Hydrolysis probes are common for robust real-time PCR. Molecular beacons are useful for hairpin-based specificity. MGB or affinity-enhanced probes are helpful for short targets and SNP discrimination. FRET probes support donor–acceptor readouts.
Which dye and quencher pairs are available?
Common dyes include FAM, HEX, VIC, TET, ROX, Cy3, Cy5, and ATTO dyes. Quencher options include BHQ-1/2/3, IAbRQSp, 3IABkFQ, QSY series, and other dark quenchers.
When should I use MGB or LNA/BNA/cEt?
Use MGB or affinity-enhanced modifications when the probe must be short, when mismatch discrimination is important, or when the target has challenging GC content.
Can Bio-Synthesis help with multiplex qPCR panels?
Yes. Bio-Synthesis can review dye channel compatibility, quencher selection, probe balance, purification, and delivery format for multiplex qPCR panels.
What is a dual-labeled qPCR probe?
A dual-labeled qPCR probe is typically designed with a 5′ fluorescent reporter and a 3′ quencher. During hydrolysis-based qPCR, probe cleavage separates reporter from quencher and increases fluorescence.
What QC options are available?
Available options include OD260 quantitation, HPLC or UPLC analysis, PAGE purification, mass spectrometry where applicable, CoA, and custom documentation.

Ready to design your custom qPCR probes?

For the fastest quote, share your target sequence or amplicon, probe sequence if available, dye/quencher preferences, assay type, instrument channels, multiplex requirements, scale, purification, and QC documentation needs.
Dual-Labeled Probes
FRET / Beacons
QC + Documentation
qPCR Probe Design Support Dye / Quencher Pairing • Purification • QC

Need Design Guidance?

Discuss assay format, dye/quencher pair, probe Tm, MGB or LNA options, multiplex channels, and QC requirements.

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Fast Quote Checklist

Include target, probe sequence, dye, quencher, scale, purification, delivery format, and documentation needs.

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Why Choose Bio-Synthesis

Trusted by biotech leaders worldwide for over 45+ years of delivering high quality, fast and scalable synthetic biology solutions.