Results 191 to 200 of about 3,213,552 (278)

Purification of Disassembled Capsid Protein by Hydroxyapatite Chromatography Enhances Virus‐Like Particle Recovery

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Virus‐like particles (VLPs) are a promising modality with extensive applications in prophylactic and therapeutic vaccine design. Human Papillomavirus (HPV) vaccines are one such example where VLP vaccine applications have led to the successful reduction in HPV‐associated diseases, such as cervical cancer.
Nicholas Samuelson   +5 more
wiley   +1 more source

Nuclease‐Free Scalable Purification of Physalis Mottle Virus‐Like Particles Expressed in Escherichia coli

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Plant virus‐like particles (VLPs) are promising nanotechnology platforms, but their translation requires purification strategies suitable for large‐scale production. Here, we developed a nuclease‐free downstream process for Physalis mottle virus (PhMV) VLPs expressed in Escherichia coli, combining ammonium sulfate precipitation, low‐pH ...
Sean K. Hsu   +3 more
wiley   +1 more source

Feasibility Assessment of a Single‐pH Connected Polishing Train for Monoclonal Antibody Purification Using Mildly Acidic Protein A Elution and an Acidic‐Window Anion Exchange Membrane

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Monoclonal antibody downstream processing often requires multiple pH adjustments between Protein A capture and polishing steps. These adjustments increase process complexity and make direct unit‐operation connection more difficult. We evaluated a connected post‐capture polishing block operated at approximately pH 5.0 using mild‐pH Protein A ...
Takaki Aiso   +5 more
wiley   +1 more source

Serotype‐Tailored Midstream and Downstream Operations to Advance the Manufacturing of Adeno‐Associated Viral Vectors

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Adeno‐associated viruses (AAVs) are the leading vectors for in vivo gene therapy, fueling a growing demand for scalable and robust biomanufacturing processes. Yet, the impact of cell lysis conditions on the performance of midstream and downstream unit operations across serotypes remains poorly characterized.
Arianna Minzoni   +20 more
wiley   +1 more source

Batch‐to‐Batch Optimization of pH Shifts in CHO Bioreactor Operations

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Culture pH is an important operating parameter in CHO cell cultures producing mAb since it directly affects growth and specific productivity. Mathematical models can be used to optimize the magnitude and timing of pH shifts provided that they are robust to model errors.
Ali Ghodba   +6 more
wiley   +1 more source

A Microfluidic TFF Device for Biopharmaceutical Process Development: Scale‐Down Verification of Ultrafiltration and Diafiltration Modes for Monoclonal Antibodies

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Tangential flow filtration (TFF) is an essential operation in downstream bioprocessing, yet conventional scale‐down models require large material volumes and often fail to capture scale‐relevant hydrodynamics. A microfluidic TFF (µTFF) platform was developed that preserves wall shear rate and transmembrane pressure, enabling low‐volume ...
Nusrat Jahan   +3 more
wiley   +1 more source

Design principles for vitrimers: Linking dynamic covalent chemistry, network architecture, and engineering performance

open access: yesBulletin of the Korean Chemical Society, EarlyView.
This review examines vitrimer performance from a broader perspective, considering not only dynamic covalent chemistry but also molecular structure, network architecture, and rheological behavior. These factors are discussed in relation to service and processing windows, reprocessing, repair, and engineering applications, providing a multiscale ...
Kyosun Ku, Hyeonuk Yeo
wiley   +1 more source

Structural compatibility between β‐lactams and substrate binding pockets of IMP‐1 and NDM‐1 determines the substrate spectrum

open access: yesBulletin of the Korean Chemical Society, EarlyView.
Chemical structures of three β‐lactam classes and the substrate‐binding pockets (SBPs) of B1 metallo‐β‐lactamases (MBLs) were compared. Structural compatibility between β‐lactams and MBL SBPs correlates with enzymatic activity, providing insights into the substrate spectrum of MBLs and β‐lactam resistance.
Kiwoong Kwak   +8 more
wiley   +1 more source

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