Issue 12, 2008

Novel microbubble preparation technologies

Abstract

Gas microbubbles, stabilised by a surfactant or polymer coating, have become well established over the past 20–30 years as the most effective type of contrast agent available for ultrasound radiography. More recently, their potential for use in therapeutic applications including targeted drug delivery, gene therapy, thrombolysis and focused ultrasound surgery has also been investigated. Developments in both diagnostic and therapeutic applications have greatly increased the need for more advanced preparation technologies which provide a high degree of control over microbubble size, composition, stability and uniformity. Conventional processing techniques such as sonication and high shear emulsification offer high yield and low cost production but poor control over microbubble size and uniformity. This is being addressed by the development of new technologies, such as membrane emulsification, inkjet printing, electrohydrodynamic atomisation and microfluidic processing which offer significant improvements in terms of control over microbubble characteristics. The aim of this paper is to review the range of techniques available for microbubble preparation and how these have evolved to keep pace with advances in clinical practice.

Graphical abstract: Novel microbubble preparation technologies

Article information

Article type
Review Article
Submitted
04 Jun 2008
Accepted
22 Jul 2008
First published
12 Sep 2008

Soft Matter, 2008,4, 2350-2359

Novel microbubble preparation technologies

E. Stride and M. Edirisinghe, Soft Matter, 2008, 4, 2350 DOI: 10.1039/B809517P

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