Oloid Shaker for Rapid Protein Stability Testing
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Solution Overview
Problem
Current mechanical stress studies for protein formulations are time-consuming and not directly transferable to storage stability, with conventional methods requiring prolonged durations to detect protein degradation, especially for less sensitive proteins, and often using additional components that alter the degradation profile.
Innovation Solution
The use of an oloid movement-based shaker that performs a sophisticated, rhythmically pulsing motion to simulate realistic mechanical stress, allowing for accelerated protein stability testing by reducing the process time to 24 hours or less, without additional components that might alter the protein's environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional mechanical stress studies are used to determine protein formulation stability, then reliable stability data is obtained, but the testing duration becomes excessively long and development time is delayed
Solution Approach 1:
The patent applies oscillating motion at specific frequencies (e.g., 30-100 Hz) to accelerate protein aggregation and degradation processes during stability testing. This mechanical vibration approach intensifies the stress on protein formulations, causing faster manifestation of instability issues while maintaining correlation with long-term storage stability, thus reducing testing duration from weeks to days or hours without sacrificing data reliability
Solution Approach 2:
The patent changes key testing parameters including temperature elevation (e.g., 40-60°C), pH variation, and oscillation frequency to accelerate degradation kinetics. By modifying these parameters, the testing process compresses time scales while preserving the relative ranking of formulation stability, enabling rapid comparison of multiple formulations without compromising the reliability of stability assessments
2Measurement precision
If additional components are added to the testing system to enhance sensitivity, then detection capability is improved, but the degradation profile of the protein is altered and results become less transferable to storage stability
Solution Approach 1:
The patent replaces chemical additives with physical fields (mechanical oscillation, temperature control) to achieve sensitive detection of protein degradation. By using mechanical stress and controlled thermal conditions instead of chemical catalysts or surfactants, the method maintains the native protein environment while still accelerating degradation processes, ensuring that observed effects are transferable to actual storage conditions
Solution Approach 2:
The patent enables the protein formulation itself to serve as the indicator of stability through direct observation of aggregation, precipitation, or conformational changes under stress. The formulation's own physical and chemical properties (turbidity, solubility, spectroscopic characteristics) are monitored without requiring external probes or markers, eliminating interference from additional components while maintaining detection sensitivity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method enables rapid determination of protein stability and selection of colloidally stable formulations, significantly reducing development time and providing results comparable to traditional methods while maintaining the integrity of the protein's environment.
Implementation Method 1
shaking said container on a shaker, whereby the shaker performs an oloid movement
Data Source
Figure 1A~1B
Figure 1C
Figure 2~3A
AI summary
The invention concerns the field of biomolecule formulation screening and stability testing. It concerns a method for the evaluation of the colloidal stability of liquid biopolymer solutions. The present invention describes a method for determining the stability of a liquid pharmaceutical composition comprising: a) providing a liquid pharmaceutical composition in a container, b) shaking said container on a shaker, whereby the shaker performs an oloid movement, c) determining the stability of said liquid pharmaceutical composition.