Results 151 to 160 of about 1,826,528 (232)

High Cell Density Cultivation of HEK293 Cells Using a 2L Membrane‐Stirred Bioreactor

Biotechnology and Bioengineering, EarlyView.
ABSTRACT The use of perfusion systems for the continuous cultivation of animal cells at high cell density (HCD) for the production of recombinant proteins, viruses, and viral vectors has many advantages. Besides an enhancement of volumetric productivity and high cell viability, the product quality can be improved through a steady‐state environment ...
Lennart Jacobtorweihe, Yasemin van Heuvel, Kathrina Scheiermann, Patrick Bongartz, Yvonne Genzel, Udo Reichl   +5 more
wiley   +1 more source

Engineering Stable Lentiviral Vector Producer Cells Improves LVV Production

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Stable lentiviral vector producer cell lines represent a promising platform for scalable and cost‐efficient vector manufacturing, yet their productivity is often limited by intrinsic host‐cell constraints. In this study, we aimed to identify cellular factors restricting LVV production in stable doxycycline‐inducible GPRTG producer cell lines ...
Jona Röscheise, Lena‐Marie Eberle, Holger Laux, Kerstin Otte   +3 more
wiley   +1 more source

Model‐Driven Monitoring and Parameter‐Based Development of an Escherichia coli Fed‐Batch Process for Production of a Fab Antibody Fragment Across Scales

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Maintaining consistent cellular physiology during bioprocess scale‐up or scale‐down is key to developing robust processes. However, the reliability of scale‐down bioreactor systems remains debated. Although the calibration of physiological parameters in mechanistic models across scales has been proposed as a scale‐down strategy, few studies ...
Fabian Schröder‐Kleeberg, Lucas Kaspersetz, Markus Zoellkau, Markus Glaser, Markus Brunner, Christian Bosch, Annina Kemmer, M. Nicolas Cruz Bournazou, Peter Neubauer   +8 more
wiley   +1 more source

A General Workflow for Tangential Flow Filtration Perfusion Scale‐Up

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Tangential flow filtration (TFF) perfusion using hollow‐fiber modules offers substantial advantages over other mammalian cell retention technologies. Recently, increased awareness of Starling flow has helped to enhance filtration performance to similar, or even higher levels compared to alternative technologies.
Patrick Romann, Ken Lee, Venkatesh Natarajan, Daniel Ley, Claes Nymand Nilsson, David Garcia‐Munzer, Dominik Schieman, Mahbod Hajighasemi, Alex Zaytsev, Jason Friedman, Loic Chappuis, Tobias Habicher, Colin Jaques, Alex Cohen, Matthew Gagnon, Edward Chan, Daniel J. Karst, Philip Giller, Antony Sibilia, Andrew L. Zydney, Thomas K. Villiger   +20 more
wiley   +1 more source

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

Biotechnology 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, Nathaniel Parker, Shiyi Wang, Sara Daley, Aaron Cote, Michael A. Winters   +5 more
wiley   +1 more source

Combinatorial Metabolic Engineering of Alkane Biosynthesis in the Osmotolerant Yeast Debaryomyces hansenii CBS 767

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Debaryomyces hansenii is a yeast with diverse potential applications like producing oleochemicals from biomass. Yet, combinatorial metabolic engineering in D. hansenii is limited because, like many nonconventional organisms, key genomic data and genetic elements are missing. Here, we report phenotypic characterization, genomic integration loci,
Zekun Li, Nilesh Kumar Sharma, Sarah Weintraub, Eric Young   +3 more
wiley   +1 more source

Whole‐Cell Production of Resolvin E2 and 17R‐Resolvin D5 by a Double‐Oxygenating 15S‐Lipoxygenase With 5S‐Lipoxygenase Activity From Pseudobdellovibrionaceae bacterium

Biotechnology and Bioengineering, EarlyView.
A recombinant whole‐cell platform expressing a bacterial 15S‐LOX exhibiting 5S‐LOX activity enabled the stereoselective production of RvE2 and 17R‐RvD5 from 18R‐HEPE and 17R‐HDHA, achieving final concentrations of 0.57 mM and 1.48 mM from 4.0 mM substrates, respectively, under optimized conditions.
Hee‐Gyeong Lee, Kyung‐Chul Shin, Deok‐Kun Oh   +2 more
wiley   +1 more source

Characterization of Immune Responses to RBD‐SD1 Nanoparticle Vaccines Derived From ACE2‐Capable HKU5‐CoV‐2, NeoCoV, and HKU5 Merbecoviruses

Biotechnology and Bioengineering, EarlyView.
SpyCatcher‐mi3 nanoparticles presenting HKU5, NeoCoV, and HKU5‐CoV‐2 RBD‐SD1 induced strong, cross‐reactive IgG responses in immunized mice. The surrogate virus neutralization test demonstrated strong activity in sera from homologous vaccination. ABSTRACT Recent discoveries of merbecoviruses such as HKU5, NeoCoV, and HKU5‐CoV‐2 that use angiotensin ...
Peter J. Halfmann, Jeong Soo Lee, Augustine Duffy, Tong Wang, Bingcheng Huang, James Z. Kurdi, Ajay Inampudi, Natasha Chen, Elizabeth Frimpong, Carmen Rai, Yoshihiro Kawaoka, Ravi S. Kane   +11 more
wiley   +1 more source

Reducing Cooling Costs for Sustainable Food Biomanufacturing With Thermotolerant Cupriavidus necator H16 Mutant

Biotechnology and Bioengineering, EarlyView.
With a thermotolerant C. necator mutant the SCP production costs can be decreased by $0.98/kg. ABSTRACT Autotrophic CO2 conversion to Single Cell Protein (SCP) using H2 and O2 is gaining commercial traction for food and feed production. Cupriavidus necator H16 is a key chassis organism for this “knallgas” fermentation, but industrial operation is ...
Lars Puiman, James Kemp Heffernan, Esteban Marcellin   +2 more
wiley   +1 more source

Induction and Enhancement of Bacteriocin Production (Review)

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Conventionally, bacteriocins are produced by microorganisms on complex substrates, released as semi‐purified preparations or crude fermentates. These bacteriocin‐containing products often exhibit unsatisfactory purity, low active‐substance content, and high production costs, limiting their commercialization and use. This review aims to analyze
Oksana Knysh, Artur Martynov
wiley   +1 more source