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Lithography-Free Water Stable Conductive Polymer Nanowires

Hughes, Damien LU ; Mousa, Abdelrazek LU ; Musumeci, Chiara ; Larsson, Malte ; Shameem, Muhammad Anwar LU ; Aydemir, Umut LU orcid ; Schmiderer, Ludwig LU ; Larsson, Jonas LU ; Berggren, Magnus and Ek, Fredrik LU orcid , et al. (2025) In Nano Letters 25(8). p.3059-3065
Abstract
Free-standing nanowires can gain intracellular access without causing stress or apoptosis. Current approaches to generate nanowires focus on lithographic patterning and inorganic materials (Si, GaAs, Al2O3, etc.) while organic materials are less explored. Use of organic conductive polymers allows for the creation of soft mixed ion–electron conducting nanowires. Processing conductive polymers into nanowires is challenging due to the harsh chemicals and processing conditions used. Here, we demonstrate a lithography-free and scalable method to generate all-organic, water-stable nanowires composed of conductive polymers. A nanoporous membrane is filled with conductive polymer in solution, followed by a cross-linking step to make the polymer... (More)
Free-standing nanowires can gain intracellular access without causing stress or apoptosis. Current approaches to generate nanowires focus on lithographic patterning and inorganic materials (Si, GaAs, Al2O3, etc.) while organic materials are less explored. Use of organic conductive polymers allows for the creation of soft mixed ion–electron conducting nanowires. Processing conductive polymers into nanowires is challenging due to the harsh chemicals and processing conditions used. Here, we demonstrate a lithography-free and scalable method to generate all-organic, water-stable nanowires composed of conductive polymers. A nanoporous membrane is filled with conductive polymer in solution, followed by a cross-linking step to make the polymer water stable. The surface of the membrane is anisotropically etched using a reactive ion etcher to reveal the polymer inside the pores, which extends from the membrane as nanowires. We interface the nanowires with model algal cells and human primary hematopoietic stem and progenitor cells. (Less)
Please use this url to cite or link to this publication:
@article{796baa4e-8ff2-412b-a105-d9da23bde59c,
  abstract     = {{Free-standing nanowires can gain intracellular access without causing stress or apoptosis. Current approaches to generate nanowires focus on lithographic patterning and inorganic materials (Si, GaAs, Al2O3, etc.) while organic materials are less explored. Use of organic conductive polymers allows for the creation of soft mixed ion–electron conducting nanowires. Processing conductive polymers into nanowires is challenging due to the harsh chemicals and processing conditions used. Here, we demonstrate a lithography-free and scalable method to generate all-organic, water-stable nanowires composed of conductive polymers. A nanoporous membrane is filled with conductive polymer in solution, followed by a cross-linking step to make the polymer water stable. The surface of the membrane is anisotropically etched using a reactive ion etcher to reveal the polymer inside the pores, which extends from the membrane as nanowires. We interface the nanowires with model algal cells and human primary hematopoietic stem and progenitor cells.}},
  author       = {{Hughes, Damien and Mousa, Abdelrazek and Musumeci, Chiara and Larsson, Malte and Shameem, Muhammad Anwar and Aydemir, Umut and Schmiderer, Ludwig and Larsson, Jonas and Berggren, Magnus and Ek, Fredrik and Olsson, Roger and Hjort, Martin}},
  issn         = {{1530-6992}},
  keywords     = {{Nanowire; Nanotechnology; Algae; Conductive polymer}},
  language     = {{eng}},
  number       = {{8}},
  pages        = {{3059--3065}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{Nano Letters}},
  title        = {{Lithography-Free Water Stable Conductive Polymer Nanowires}},
  url          = {{http://dx.doi.org/10.1021/acs.nanolett.4c05016}},
  doi          = {{10.1021/acs.nanolett.4c05016}},
  volume       = {{25}},
  year         = {{2025}},
}