Purification Insights
Technical knowledge, made visual.
Explore practical, science-based visual insights across downstream bioprocessing—from molecular fundamentals to process development and manufacturing.
Latest Insight
Current ADC Conjugation Technologies
The ADC field continues to expand rapidly, driven by its ability to combine the target specificity of monoclonal antibodies with the potency of cytotoxic …
Molecules & Modalities
Biologic structures, therapeutic modalities, molecular properties, stability, and purification implications.
MOLECULES & MODALITIES
Mammalian Expression Systems
Mammalian cells are widely used for complex biologics because they support proper folding and human-like post-translational modifications. Their downstream processes must address diverse HCPs, DNA, aggregates, and product-related variants.
MOLECULES & MODALITIES
Microbial Expression Systems
Microbial hosts offer rapid growth, high productivity, and relatively simple cultivation, but often create very different purification challenges. Cell disruption, endotoxin, nucleic acids, inclusion bodies, and high HCP loads can strongly shape the downstream strategy.
MOLECULES & MODALITIES
Viral Vector and Viral-based Products
Viral and insect-cell platforms are commonly used for viral vectors, vaccines, and complex recombinant products. Purification must balance product recovery with removal of host-cell impurities, nucleic acids, empty or defective particles, and process-derived contaminants.
Chromatography
Affinity, ion exchange, HIC, SEC, multimodal media, resin selection, mass transfer, and column operation.
CHROMATOGRAPHY
Chromatography Resin Ligands I
Chromatography resin performance is fundamentally governed by ligand chemistry.
hashtag#Part_1 highlights how ligand structure and surface functionality define the core behavior of affinity and ion exchange chromatography, from molecular recognition and electrostatic binding to selectivity, elution strategy, and impurity clearance.
CHROMATOGRAPHY
Chromatography Resin Ligands II
Chromatography Ligands are the molecular interface that determines how a chromatography resin recognizes, binds, and releases biomolecules.
CHROMATOGRAPHY
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CHROMATOGRAPHY
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Filtration & Separation
Clarification, depth filtration, sterile filtration, TFF/UFDF, virus filtration, centrifugation, and fouling.
FILTRATION & SEPARATION
Tangential Flow Filtration (TFF)
TFF is one of the most versatile and technically demanding unit operations in downstream processing. TFF can play different roles depending on the process: buffer exchange, concentration, desalting, volume reduction, product recovery, impurity removal, or even cell/particle retention.
FILTRATION & SEPARATION
Viral Clearance
Viruses are among the most critical potential contaminants in biopharmaceutical manufacturing because even low-level carryover can present a serious patient-safety risk.
FILTRATION & SEPARATION
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FILTRATION & SEPARATION
Poster Title 04
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Product Quality & Impurities
HCP, DNA, aggregates, residuals, product stability, impurity profiles, and characterization concepts.
PRODUCT QUALITY
Charge Variants in Biotherapeutics
During development, manufacturing, and storage, small chemical or enzymatic modifications can shift a therapeutic protein into acidic or basic hashtag#variants — changing its charge profile, stability, potency, or comparability.
PRODUCT QUALITY
Host Cell DNA
A few nanograms of residual DNA can carry major regulatory and process implications.
PRODUCT QUALITY
Process-Related Impurities
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PRODUCT QUALITY
Hydrophobicity, Protein Folding & Aggregation
Hydrophobicity has two faces in protein stability: keep it buried, and it helps stabilize the fold; expose it, and it can become a driver of hashtag#aggregation.
Process Development & Manufacturing
DoE, high-throughput development, scale-up, tech transfer, continuous DSP, troubleshooting, and manufacturing reality.
PROCESS DEVELOPMENT
Purification Strategies for ADCs
Antibody–drug conjugate (ADC) pipelines are expanding fast, and Purification Strategy is becoming central to CMC robustness, product quality, and process success.
PROCESS DEVELOPMENT
Bispecific Antibodies Purification
Bispecific antibodies (bsAbs) are engineered to engage two targets—but their purification challenges often begin with the same structural complexity that enables their function.
PROCESS DEVELOPMENT
AAV Downstream Strategy
AAV is the tiny delivery vehicle powering some of gene therapy’s biggest ambitions.
PROCESS DEVELOPMENT
Therapeutic Peptide Purification
he world of Therapeutic Peptides is becoming increasingly compelling. From insulin and GLP_1 therapies to emerging treatments in oncology, cardiovascular disease, infectious disease, and rare disorders, peptides are expanding into a broad range of therapeutic areas.
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