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Related Experiment Video

Updated: Feb 5, 2026

Fast Enzymatic Processing of Proteins for MS Detection with a Flow-through Microreactor

Fast Enzymatic Processing of Proteins for MS Detection with a Flow-through Microreactor

Published on: April 6, 2016

Continuous flow microreactor for protein PEGylation.

P Madadkar¹, P R Selvaganapathy², R Ghosh¹

¹Department of Chemical Engineering, McMaster University, 1280 Main St. W, Hamilton, Ontario L8S 4L7, Canada.

Biomicrofluidics

|September 4, 2018

Summary

This summary is machine-generated.

Microfluidic reactors enhance protein PEGylation by improving selectivity through chaotic mixing. This high-throughput screening platform offers precise control over reaction conditions for biopharmaceutical development.

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Continuous Flow Chemistry: Reaction of Diphenyldiazomethane with p-Nitrobenzoic Acid

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Published on: November 15, 2017

Area of Science:

Biochemical Engineering
Drug Delivery Systems
Process Optimization

Background:

PEGylation is a crucial technique for improving the therapeutic properties of biopharmaceuticals.
Optimizing protein PEGylation is challenging due to sensitivity to process variables, affecting conversion and selectivity.
Microfluidic platforms offer potential for high-throughput screening and precise control in bioprocesses.

Purpose of the Study:

To design and evaluate a microfluidic continuous flow system for protein PEGylation.
To compare the performance of microfluidic mixing with traditional batch reactors for PEGylation.
To investigate the impact of chaotic laminar mixing on PEGylation selectivity and conversion.

Main Methods:

A poly-dimethylsiloxane (PDMS)-based microreactor with staggered herringbone grooves was developed for passive micromixing.
Lysozyme was used as a model protein, reacted with methoxy-polyethylene glycol-(CH2)5COO-NHS.
The microreactor system included on-chip reaction quenching capabilities and was compared against a batch reactor setup.

Main Results:

Efficient mixing was achieved rapidly within the microreactor, demonstrating suitability for protein PEGylation.
The microfluidic system achieved significantly higher selectivity, reaching up to 100%, compared to batch processing.
While conversion was marginally lower in the microreactor, the enhanced selectivity offers a significant advantage.

Conclusions:

Microfluidic continuous flow reactors, utilizing chaotic advection for mixing, are highly effective for optimizing protein PEGylation.
This technology provides superior selectivity control, crucial for developing enhanced biopharmaceuticals.
The developed microreactor system represents a valuable tool for high-throughput screening and process optimization in biopharmaceutical manufacturing.