Results 41 to 50 of about 62,649 (242)

Development of Raman Spectroscopy and Machine Learning Methods for Protein Aggregate Quantification: Application to BSA in Chromatographic Processes

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Protein aggregation poses a significant risk to biopharmaceutical product quality, as even minor amounts of oligomeric species can compromise efficacy and safety. Rapid and reliable detection of protein aggregates thus remains a major challenge in biopharmaceutical manufacturing.
Jakob Heyer‐Müller   +4 more
wiley   +1 more source

A synergistic strategy to develop photostable and bright dyes with long Stokes shift for nanoscopy

open access: yesNature Communications, 2022
Super-resolution microscopy is a powerful tool for cellular studies but requires bright and stable fluorescent probes. Here, the authors report on a strategy to introduce quinoxaline motifs to conventional probes to make them brighter, more photostable ...
Gangwei Jiang   +8 more
doaj   +1 more source

Joint selection of wavenumber regions for midir and raman spectra and variables in pls regression using genetic algorithms [PDF]

open access: yes, 2012
This work fits into the context of cassava processing. Production and consumption of this product is steadily increasing worldwide and especially in tropical regions where, after harvest, cassava starch is extracted according to an empirical process ...
Delarbre, Jean-Louis   +6 more
core  

Raman Spectroscopy–Based Glucose Feed Control Automates Malic Acid Fermentation

open access: yesBiotechnology and Bioengineering, EarlyView.
Raman spectroscopy enables automated, closed‐loop glucose feeding for malic acid production with Ustilago trichophora. Online PLS regression of glucose and malic acid provides input for PID control to maintain 20 g/L glucose. The feed is dynamically adjusted and stopped in response to metabolic demand and product inhibition, demonstrating practical ...
Luca Antonia Grebe   +8 more
wiley   +1 more source

Innovative methodology for flexible monitoring of various bioprocesses by using pre‐existing Raman data coupled with automated transfer learning technique

open access: yesBiotechnology Progress, EarlyView.
The application of the transfer learning algorithm successfully allowed the use of a model built on process A for real‐time monitoring of process B. This study shows the improvement obtained with this methodology compared to the direct application of the model.
Adèle Schini   +7 more
wiley   +1 more source

The development of an anti-cancer peptide M1-21 targeting transcription factor FOXM1

open access: yesCell & Bioscience, 2023
Background Transcription factor FOXM1 is a potential target for anti-cancer drug development. An interfering peptide M1-21, targeting FOXM1 and FOXM1-interacting proteins, is developed and its anti-cancer efficacy is evaluated.
Haojie Cheng   +9 more
doaj   +1 more source

Process Performance Analysis in Large-Scale Systems Integrating Different Sources of Information

open access: yes, 2012
Process auditing using historical data can identify causes for poor performance and reveal opportunities to improve process operation. To date, the data used has been limited to process measurements; however other sources hold complementary information ...
Bauer   +19 more
core   +1 more source

Nonlinear process fault detection and identification using kernel PCA and kernel density estimation [PDF]

open access: yes, 2016
Kernel principal component analysis (KPCA) is an effective and efficient technique for monitoring nonlinear processes. However, associating it with upper control limits (UCLs) based on the Gaussian distribution can deteriorate its performance.
Cao, Yi, Samuel, Raphael
core   +1 more source

Rapid development of a transferable Raman model using high‐throughput cell culture for monitoring monoclonal antibody titer

open access: yesBiotechnology Progress, EarlyView.
Abstract Monoclonal antibody (mAb) titer monitoring is a key capability during process development and optimization, enabling timely decision making and increasing the speed of development. Raman spectroscopy is a prominent process analytical technology (PAT), but resource‐efficient calibration strategies for the development of transferable models are ...
Alexandra Umprecht   +4 more
wiley   +1 more source

Size-selective molecular recognition based on a confined DNA molecular sieve using cavity-tunable framework nucleic acids

open access: yesNature Communications, 2020
Size-selective discrimination is an issue in biosensing. Here, the authors report on a size selective DNA nanocage which excludes agents based on size and protects the probes against degradation, and demonstrate the discrimination between mature and ...
Xiaoyi Fu   +8 more
doaj   +1 more source

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