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Novel Inks for Direct Writing in Three Dimensions

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Direct-write assembly of 3-D periodic structures requires control over, and, hence, a fundamental understanding of their phase behavior, structure, and rheology of concentrated inks. This talk will feature examples from our recent efforts in engineering novel inks from colloidal, nanoparticle, and polyelectrolyte building blocks. First, the design of concentrated nanoparticle inks with viscoelastic properties suitable for writing 3-D periodic structures with minimum feature sizes as low as 10 μm is described. Second, a new ink design based on concentrated polyelectrolyte complexes is highlighted that enables the fabrication of 3-D micro-periodic structures with submicron features. The myriad of 3-D inks and assembly routes under development offers the potential to architect complex structures required for structural and functional composites, tissue engineering scaffolds, microfluidic networks, as well as photonic band gap materials.

Document Type: Research Article

Publication date: 2005-01-01

More about this publication?
  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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