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Medium Throughput Cage State Stability Screen of Conditions for the Generation of Gold Nanoparticles Encapsulated Within A Mini-Ferritin

Research output: Contribution to journalArticle

Original languageEnglish
JournalBioorganic and Medicinal Chemistry
DOIs
Publication statusAccepted/In press - 23 Mar 2018

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Abstract

Methods for the generation of nanoparticles encapsulated within cage proteins, such as ferritins, provide particles with low polydispersities due to size constraint by the cage. The proteins can provide enhanced water solubility to enable biological applications and affinity and identification tags to facilitate delivery or the assembly of advanced materials. Many effective methods have been developed, however, they are often impeded by cage protein instability in the presence of reagents or conditions for formation of the nanoparticles. Although the stability of ferritin cage quaternary structure can be enhanced, application of ferritins to materials science remains limited by unpredictable behaviour. Recently, we reported a medium throughput technique to directly detect the ferritin cage state. Herein, we expand this strategy to screen conditions commonly used for the formation of gold nanoparticles. Not only do we report nanoparticle formation conditions that permit ferritin stability, we establish a general screening strategy based on protein cage stability that could be applied to other protein cages or for the generation of other types of particles.

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