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Nanotechnology. 2006 Sep 28;17(18):4675-81. doi: 10.1088/0957-4484/17/18/025. Epub 2006 Aug 30.

Encapsulation of bacteria and viruses in electrospun nanofibres.

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1
Faculty of Mechanical Engineering, Technion, Israel Institute of Technology, Haifa 32000, Israel.

Abstract

Bacteria and viruses were encapsulated in electrospun polymer nanofibres. The bacteria and viruses were suspended in a solution of poly(vinyl alcohol) (PVA) in water and subjected to an electrostatic field of the order of 1 kV cm(-1). Encapsulated bacteria in this work, (Escherichia coli, Staphylococcus albus) and bacterial viruses (T7, T4, λ) managed to survive the electrospinning process while maintaining their viability at fairly high levels. Subsequently the bacteria and viruses remain viable during three months at -20 and -55 °C without a further decrease in number. The present results demonstrate the potential of the electrospinning process for the encapsulation and immobilization of living biological material.

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