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Title: Bacteria as Bio-Template for 3D Carbon Nanotube Architectures

Abstract

It is one of the most important needs to develop renewable, scalable and multifunctional methods for the fabrication of 3D carbon architectures. Even though a lot of methods have been developed to create porous and mechanically stable 3D scaffolds, the fabrication and control over the synthesis of such architectures still remain a challenge. Here, we used Magnetospirillum magneticum (AMB-1) bacteria as a bio-template to fabricate light-weight 3D solid structure of carbon nanotubes (CNTs) with interconnected porosity. The resulting porous scaffold showed good mechanical stability and large surface area because of the excellent pore interconnection and high porosity. Steered molecular dynamics simulations were used to quantify the interactions between nanotubes and AMB-1 via the cell surface protein MSP-1 and flagellin. Furthermore, the 3D CNTs-AMB1 nanocomposite scaffold is further demonstrated as a potential substrate for electrodes in supercapacitor applications.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [3];  [3];  [4];  [2]; ORCiD logo [3];  [3]; ORCiD logo [1];  [2];  [3]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Univ. of Bridgeport, Bridgeport, CT (United States)
  3. Rice Univ., Houston, TX (United States)
  4. Univ. Federal do ABC, Santo Andre-SP (Brazil)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1398917
Report Number(s):
LA-UR-17-21459
Journal ID: ISSN 2045-2322
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 7; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 60 APPLIED LIFE SCIENCES

Citation Formats

Ozden, Sehmus, Macwan, Isaac G., Owuor, Peter S., Kosolwattana, Suppanat, Autreto, Pedro A. S., Silwal, Sushila, Vajtai, Robert, Tiwary, Chandra S., Mohite, Aditya D., Patra, Prabir K., and Ajayan, Pulickel M. Bacteria as Bio-Template for 3D Carbon Nanotube Architectures. United States: N. p., 2017. Web. doi:10.1038/s41598-017-09692-2.
Ozden, Sehmus, Macwan, Isaac G., Owuor, Peter S., Kosolwattana, Suppanat, Autreto, Pedro A. S., Silwal, Sushila, Vajtai, Robert, Tiwary, Chandra S., Mohite, Aditya D., Patra, Prabir K., & Ajayan, Pulickel M. Bacteria as Bio-Template for 3D Carbon Nanotube Architectures. United States. doi:10.1038/s41598-017-09692-2.
Ozden, Sehmus, Macwan, Isaac G., Owuor, Peter S., Kosolwattana, Suppanat, Autreto, Pedro A. S., Silwal, Sushila, Vajtai, Robert, Tiwary, Chandra S., Mohite, Aditya D., Patra, Prabir K., and Ajayan, Pulickel M. Tue . "Bacteria as Bio-Template for 3D Carbon Nanotube Architectures". United States. doi:10.1038/s41598-017-09692-2. https://www.osti.gov/servlets/purl/1398917.
@article{osti_1398917,
title = {Bacteria as Bio-Template for 3D Carbon Nanotube Architectures},
author = {Ozden, Sehmus and Macwan, Isaac G. and Owuor, Peter S. and Kosolwattana, Suppanat and Autreto, Pedro A. S. and Silwal, Sushila and Vajtai, Robert and Tiwary, Chandra S. and Mohite, Aditya D. and Patra, Prabir K. and Ajayan, Pulickel M.},
abstractNote = {It is one of the most important needs to develop renewable, scalable and multifunctional methods for the fabrication of 3D carbon architectures. Even though a lot of methods have been developed to create porous and mechanically stable 3D scaffolds, the fabrication and control over the synthesis of such architectures still remain a challenge. Here, we used Magnetospirillum magneticum (AMB-1) bacteria as a bio-template to fabricate light-weight 3D solid structure of carbon nanotubes (CNTs) with interconnected porosity. The resulting porous scaffold showed good mechanical stability and large surface area because of the excellent pore interconnection and high porosity. Steered molecular dynamics simulations were used to quantify the interactions between nanotubes and AMB-1 via the cell surface protein MSP-1 and flagellin. Furthermore, the 3D CNTs-AMB1 nanocomposite scaffold is further demonstrated as a potential substrate for electrodes in supercapacitor applications.},
doi = {10.1038/s41598-017-09692-2},
journal = {Scientific Reports},
number = 1,
volume = 7,
place = {United States},
year = {2017},
month = {8}
}

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