quantitative-qualitative-examination-particle-particle-interactions

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Colloidal Probe Nanoscopy (CPN), the study of the nano-scale interactive forces between a specifically prepared colloidal probe and any chosen substrate ...

University of Sydney

The techniques available to study formulation stability in pressurized metered dose inhalers (pMDIs) are limited, due to the challenging conditions of working with high pressure propellants. Isothermal microcalorimetry is a valuable tool used to screen and aid in formulation development of solid and solution drug formulations; however there are currently no available methods to evaluate pMDIs. In this paper, we have developed a method that allows measurement of such pressurized systems.

Isothermal Microcalorimetry of Pressurized Systems I: A Rapid Method to Evaluate Pressurized Metered Dose Inhaler Formulations.

Current colloidal probe preparation techniques face several challenges in the production of functional probes using particles ⩽5 μm. Challenges include: glue encapsulated particles, glue altered particle properties, improper particle or agglomerate attachment, and lengthy procedures. We present a method to rapidly and reproducibly produce functional micro and nano-colloidal probes.

Attachment of micro- and nano-particles on tipless cantilevers for colloidal probe microscopy.

To demonstrate the novel application of nano X-ray computed tomography (NanoXCT) for visualizing and quantifying the internal structures of pharmaceutical particles.

Article	Year
Isothermal Microcalorimetry of Pressurized Systems I: A Rapid Method to Evaluate Pressurized Metered Dose Inhaler Formulations. Pharmaceutical research\| PubMed ID: 24760449	2014
Attachment of micro- and nano-particles on tipless cantilevers for colloidal probe microscopy. Journal of colloid and interface science\| PubMed ID: 24863782	2014
NanoXCT: A Novel Technique to Probe the Internal Architecture of Pharmaceutical Particles. Pharmaceutical research\| PubMed ID: 24867423	2014

Dexter D'Sa

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