Whichever modality your programme requires, NBF can take it from gene to clinical drug substance. The same multi-host expression, bioconjugation, downstream and analytical platforms support all modality classes, only the construct design and the chemistry of the payload differ.
Antibody
Monoclonal antibodies
mAb · IgG · IgM · IgA
Full-length IgG monoclonal antibodies are NBF's most-produced modality. Antibody discovery via phage display, humanisation and affinity maturation feed directly into CHO or HEK293 transient and stable expression, downstream Protein A capture, and Phase I clinical-grade antibody manufacture at 50 L bioreactor scale.
NBF pathway: Discovery → cell line dev → 50 L PC2 manufacture → release-grade analytics
Antibody
Bispecific & multispecific antibodies
BsAb · T-cell engager · DVD-Ig
Engineered bispecific formats: knob-into-hole, CrossMab, common light chain, DVD-Ig and tandem scFv designs, are routinely supported. The mammalian expression platform handles the typically lower titres and quality challenges of bispecifics, with bioanalytics tuned to detect mispairing.
NBF pathway: Format design → mammalian expression → orthogonal purification → species QC by intact MS
Antibody
Antibody fragments
Fab · scFv · VHH · Nanobody
Smaller antibody formats: Fab, scFv, single-domain antibodies (VHH / nanobodies), are produced in E. coli, yeast, or mammalian systems depending on the application. Camelid VHH library construction and nanobody panning are run by NBF's molecular discovery group.
NBF pathway: Library construction → phage selection → E. coli / yeast expression → IMAC + SEC purification
Conjugate
Antibody-drug conjugates
ADC · cytotoxic conjugate
NBF produces the recombinant antibody backbone for ADC manufacture and operates a bioconjugation suite for site-specific and stochastic payload attachment. Cysteine-engineered antibodies (THIOMAB-style), engineered glycan handles, and sortase / transglutaminase enzymatic conjugation are all supported.
NBF pathway: Cys-engineered mAb → maleimide / glycan / enzymatic conjugation → drug-antibody ratio (DAR) analysis by HIC and LC-MS
Conjugate
Radioligand & radiopharmaceutical precursors
RLT · Radioligand therapy · Theranostic
For radioligand therapy and theranostic applications, NBF supplies the recombinant targeting vector: antibody, antibody fragment, peptide or affibody: pre-conjugated with chelators (DOTA, DTPA, NOTA, deferoxamine) ready for downstream radiolabelling with 177Lu, 225Ac, 89Zr or 68Ga at a licensed radiopharmacy. We do not handle radioisotopes in-house but our bioconjugation chemistry and analytical package are designed for radiopharmaceutical-precursor specification.
NBF pathway: Targeting vector expression → chelator conjugation → chelator-loading analytics → cold transfer to radiopharmacy partner
Vaccine
Recombinant vaccine antigens
Subunit · VLP · stabilised antigen
Subunit vaccine antigens, stabilised viral glycoproteins (including molecular-clamp formats), virus-like particles (VLPs) and self-assembling protein nanoparticles are all within scope. NBF has supported COVID-19, Chapare, antiviral and pandemic-preparedness vaccine manufacture programmes through to Phase I clinical material.
NBF pathway: Construct stabilisation → multi-host expression screen → scale-up to 50 L → release analytics for first-in-human
Engineered protein
Fc-fusion proteins
Fc-fusion · receptor trap
Recombinant Fc-fusion biotherapeutics: soluble receptor traps, cytokine-Fc fusions, decoy receptors, are produced in mammalian hosts and purified via Protein A. Effector function tuning (LALA, DLE) and half-life extension via Fc engineering are routinely supported at the molecular design stage.
NBF pathway: Fc engineering → mammalian expression → Protein A capture → potency assay development
Engineered protein
Therapeutic enzymes
Enzyme replacement · biocatalyst
Recombinant therapeutic enzymes, including glycosylated and PEGylated forms, are produced across E. coli, yeast and mammalian hosts. Enzyme activity assays, structural integrity confirmation and post-translational modification analysis are baked into the standard release package.
NBF pathway: Host selection (PTM-dependent) → fed-batch fermentation → orthogonal purification → activity + PTM release
Research-grade
Diagnostic proteins & biomarkers
Reference standard · calibrator
Beyond therapeutic biologics, NBF supplies research- and diagnostic-grade recombinant proteins: assay calibrators, reference antigens, surrogate biomarkers, for academic and industry sponsors. Smaller research-scale batches feed directly into the same quality pipeline as the GMP workflows.
NBF pathway: Construct design → bench-scale expression → research-grade purification → identity / purity / mass certificate