{"title":"Development and Characterization of Biocompatible Cellulose Acetate Substrate for Flexible Electrochemical Biosensors","authors":"Karri Trinadha Rao;Rahul Gangwar;K. Aditya Bhagavathi;Sajmina Khatun;Pravat Kumar Sahu;Aravind Kumar Rengan;Challapalli Subrahmanyam;Suresh Kumar Garlapati;Siva Rama Krishna Vanjari","doi":"10.1109/JFLEX.2024.3435809","DOIUrl":null,"url":null,"abstract":"This article focuses on the development and characterization of flexible, biocompatible substrates using cellulose acetate (CA), a natural biopolymer known for its biocompatibility and adjustable biodegradability. As a proof of concept, the electrochemical detection of Staphylococcus aureus was carried out using Au-nanoparticle (NP)-modified flexible screen-printed electrode (FSPE) on the CA substrate. The key take away from the reliability studies is that the electrochemical performance is intact after multiple bendings. The tensile strength of 2.75±0.03 MPa is an indicative of the flexibility of the substrate. The substrate showed little degradation during the fabrication of screen-printed electrode (SPE) and the time-consuming surface functionalization protocols required for Au-NP deposition and bioreceptor immobilization. The selective and ultrasensitive detection of S.aureus (LOD: 0.13 CFU/mL) is a testimony for the robustness of the substrate in flexible electrochemical biosensor applications.","PeriodicalId":100623,"journal":{"name":"IEEE Journal on Flexible Electronics","volume":"3 7","pages":"312-319"},"PeriodicalIF":0.0000,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Journal on Flexible Electronics","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10614637/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
This article focuses on the development and characterization of flexible, biocompatible substrates using cellulose acetate (CA), a natural biopolymer known for its biocompatibility and adjustable biodegradability. As a proof of concept, the electrochemical detection of Staphylococcus aureus was carried out using Au-nanoparticle (NP)-modified flexible screen-printed electrode (FSPE) on the CA substrate. The key take away from the reliability studies is that the electrochemical performance is intact after multiple bendings. The tensile strength of 2.75±0.03 MPa is an indicative of the flexibility of the substrate. The substrate showed little degradation during the fabrication of screen-printed electrode (SPE) and the time-consuming surface functionalization protocols required for Au-NP deposition and bioreceptor immobilization. The selective and ultrasensitive detection of S.aureus (LOD: 0.13 CFU/mL) is a testimony for the robustness of the substrate in flexible electrochemical biosensor applications.