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Title: Carbon Nanotube Porins in Amphiphilic Block Copolymers as Fully Synthetic Mimics of Biological Membranes

Journal Article · · Advanced Materials
 [1];  [2];  [2];  [3];  [3];  [3];  [4];  [4];  [5];  [3];  [6]; ORCiD logo [2]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Davis, CA (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California Merced, Merced, CA (United States)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  4. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  5. Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Univ. of Washington, Seattle, WA (United States)
  6. Univ. of California, Davis, CA (United States)

Biological membranes reflect a fascinating example of a separation system that is multifunctional, tunable, precise, and efficient. Biomimetic membranes, which mimic the architecture of cellular membranes, have the potential to deliver significant improvements in specificity and permeability. In this work, a fully synthetic biomimetic membrane is introduced that incorporates ultra-efficient 1.5 nm diameter carbon nanotube porin (CNTPs) channels in a block-copolymer matrix. It is demonstrated that CNTPs maintain high proton and water permeability in these membranes. CNTPs can also mimic the behavior of biological gap junctions by forming bridges between vesicular compartments that allow transport of small molecules.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
National Institute of General Medical Sciences; National Institutes of Health; USDOE; USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC02-05CH11231; AC02-76SF00515; AC05-76RL01830; AC52-07NA27344
OSTI ID:
1542739
Report Number(s):
LLNL-JRNL--761054; 949988
Journal Information:
Advanced Materials, Journal Name: Advanced Materials Journal Issue: 51 Vol. 30; ISSN 0935-9648
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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