Colloids, nanoparticles, and materials for imaging, delivery, ablation, and theranostics by focused ultrasound (FUS)

Adem Yildirim, Nicholas T. Blum, Andrew P. Goodwin

Research output: Contribution to journalArticle

Abstract

This review focuses on different materials and contrast agents that sensitize imaging and therapy with Focused Ultrasound (FUS). At high intensities, FUS is capable of selectively ablating tissue with focus on the millimeter scale, presenting an alternative to surgical intervention or management of malignant growth. At low intensities, FUS can be also used for other medical applications such as local delivery of drugs and blood brain barrier opening (BBBO). Contrast agents offer an opportunity to increase selective acoustic absorption or facilitate destructive cavitation processes by converting incident acoustic energy into thermal and mechanical energy. First, we review the history of FUS and its effects on living tissue. Next, we present different colloidal or nanoparticulate approaches to sensitizing FUS, for example using microbubbles, phase-shift emulsions, hollow-shelled nanoparticles, or hydrophobic silica surfaces. Exploring the science behind these interactions, we also discuss ways to make stimulus-responsive, or “turn-on” contrast agents for improved selectivity. Finally, we discuss acoustically-active hydrogels and membranes. This review will be of interest to those working in materials who wish to explore new applications in acoustics and those in acoustics who are seeking new agents to improve the efficacy of their approaches.

Original languageEnglish (US)
Pages (from-to)2572-2594
Number of pages23
JournalTheranostics
Volume9
Issue number9
DOIs
StatePublished - Jan 1 2019

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Colloids
Acoustics
Nanoparticles
Contrast Media
Microbubbles
Hydrogels
Emulsions
Blood-Brain Barrier
Silicon Dioxide
Hot Temperature
History
Membranes
Theranostic Nanomedicine
Growth
Pharmaceutical Preparations
Therapeutics

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Pharmacology, Toxicology and Pharmaceutics (miscellaneous)

Cite this

Colloids, nanoparticles, and materials for imaging, delivery, ablation, and theranostics by focused ultrasound (FUS). / Yildirim, Adem; Blum, Nicholas T.; Goodwin, Andrew P.

In: Theranostics, Vol. 9, No. 9, 01.01.2019, p. 2572-2594.

Research output: Contribution to journalArticle

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