Silk Fiber Multiwalled Carbon Nanotube-Based Micro-/Nanofiber Composite As a Conductive Fiber and a Force Sensor

Overview

Journal ACS Omega

Publisher American Chemical Society

Specialty Chemistry

Date 2022 Jun 27

PMID 35755328

Authors

Sindhu Sree Muralidhar

Vinay Gangaraju

Mahesh Shastri

Navya Rani Marilingaiah

Arjun Dey

Sushil Kumar Singh

Dinesh Rangappa

Affiliations

Soon will be listed here.

Abstract

Silk cocoon fibers (SFs) are natural polymers that are made up of fibroin protein. These natural fibers have higher mechanical stability and good elasticity properties. In this work, we coated multiwalled carbon nanotubes (MWCNTs) on the surface of SFs using a simple stirring technique with vinegar as the medium. This SF-MWCNT micro-/nanofiber composite was prepared without any adhesives. The characterization results revealed that the SF-MWCNT micro-/nanofiber composite exhibited excellent electrical conductivity (995 Ω cm), tensile strength (up to 200% greater elongation), and durability characteristics. In addition, this micro-/nanofiber composite shows a change in resistance from 1450 to 960 Ω cm for an applied mechanical force of 0.3-1 N kg. Based on our findings, SF-MWCNT micro-/nanofiber composite-based conductive fibers (CFs) and force sensors (FSs) were developed.

Citing Articles

Electrospun Silk Fibroin-CNT Composite Fibers: Characterization and Application in Mediating Fibroblast Stimulation.

Rathnayake R, Yoon S, Zheng S, Clutter E, Wang R Polymers (Basel). 2023; 15(1).

PMID: 36616441 PMC: 9824115. DOI: 10.3390/polym15010091.

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