Platform validation

Platform Commercial Milestones: HPAE-Based Transfection Reagents

The BrPERfect® reagent portfolio was fully invented, validated and quality-system built in-house by Branca Bunús as industrial proof-of-concept for our HPAE platform’s manufacturability and real-world functionality. Following our strategic partnership launch with PolyGene Biotech, all global manufacturing, scale-up, customer supply and technical support operations have transitioned to our exclusive commercial partner. All product specifications, pricing, sample requests and process support are managed fully via PolyGene’s dedicated website.

Reagent platform

Core reagent platform benefits

Superior transfection efficiency paired with preserved cell viability for sensitive biomanufacturing workflows

Simple, rapid mixing protocols with stable polyplex complexes holding activity for a minimum of 3 hours at ambient temperature

Fully scalable from small academic lab scale to full GMP bioproduction volumes

Animal-component-free chemically defined formulations with complete biodegradation profiles

Validated for AAV, lentivirus, recombinant mAb and transient protein production workflows

Full regulatory documentation suite including FDA Type II DMF for GMP-grade production materials

Product lines

Invented by Branca Bunús, supplied globally by PolyGene

BrPERfect® for Virus

Optimised HPAE transfection reagent for suspension and adherent HEK293 transient AAV and lentiviral vector manufacturing.

BrPERfect® for Protein

Transfection formulation for high-yield recombinant antibody and protein expression in CHO / HEK293 cell lines.

TransPi™ Mate

Research-grade adherent cell transfection reagent for routine lab gene expression and screening assays.

Strategic partnership

Branca Bunús Ltd and PolyGene Biotech operate as independent entities under a long-term strategic partnership, founded by the HPAE technology inventor Professor Wenxin Wang. BrB retains the ownership of HPAE platform intellectual property and leads therapeutic pipeline development; PolyGene holds exclusive global manufacturing, distribution and commercialisation rights for all transfection reagent lines.

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Branca Bunús is first and foremost a platform and gene medicine innovator.