Assessing Antigen-Adjuvant Complex Stability Against Physical Stresses By wNMR.

Area of Science:

• Analytical Chemistry
• Materials Science
• Biotechnology

Background:

• Aluminum adjuvants are crucial for vaccine efficacy.
• Assessing the stability of adjuvants and antigen-adjuvant complexes is vital for vaccine quality control.
• Physical stresses can compromise the integrity of vaccine formulations.

Purpose of the Study:

• To evaluate the application of water proton nuclear magnetic resonance (wNMR) for assessing the stability of aluminum adjuvants and antigen-adjuvant complexes.
• To determine the effectiveness of wNMR in detecting physical stress-induced changes.
• To compare wNMR with conventional analytical methods.

Main Methods:

• Application of emerging wNMR technology.
• Exposure of samples to physical stresses: gravitation, flow, and freeze/thaw.
• Verification of wNMR results using static light scattering and microfluidic imaging.

Main Results:

• wNMR successfully assessed the stability of aluminum adjuvants and antigen-adjuvant complexes.
• The technique identified alterations caused by physical stresses.
• wNMR results were consistent with conventional analytical technologies.

Conclusions:

• wNMR is a rapid and noninvasive tool for evaluating the physical stability of aluminum adjuvants and antigen-adjuvant complexes.
• This analytical technology can ensure the quality and integrity of vaccine formulations.
• wNMR offers a promising alternative for routine quality control in vaccine manufacturing.