Acoustic spectroscopy: A powerful analytical method for the pharmaceutical field?

Area of Science:

• Physical sciences
• Materials science
• Chemical engineering

Background:

• Acoustics is an emerging technology for optimizing pharmaceutical, food, and chemical product processing.
• Acoustic spectroscopy analyzes ultrasound pulse intensity and phase through samples.
• It characterizes concentrated, non-transparent, and structured colloidal dispersions without dilution.

Purpose of the Study:

• To review the state-of-the-art of ultrasound-based techniques in pharmaceutical pre-formulation and formulation.
• To demonstrate the potential, applicability, and limitations of acoustic spectroscopy.
• To provide a simplified theoretical background and overview of market equipment.

Main Methods:

• Acoustic spectroscopy principle: measuring ultrasound pulse intensity and phase.
• Application in characterizing concentrated colloidal dispersions.
• Review of ultrasound-based techniques for pharmaceutical applications.

Main Results:

• Acoustic spectroscopy enables characterization of complex systems without dilution.
• Ultrasound techniques offer potential in pharmaceutical pre-formulation and formulation.
• The review covers theory, equipment, and diverse study applications.

Conclusions:

• Acoustic spectroscopy is a valuable tool for analyzing challenging pharmaceutical systems.
• Ultrasound-based methods show significant promise for enhancing pharmaceutical development.
• Further research and application of these techniques are warranted.