5 documents found, page 1 of 1
Development of an innovative flexible paper-based methanol fuel cell (PB-DMFC) ...
Carneiro, Liliana P.T.; Pinto, Alexandra M.F.R.; Sales, M. Goreti F.This work describes for the first time a paper-based direct methanol fuel cell platform (PB-DMFC) that functions as an energy source and biosensor, assembled on a simple paper substrate for point-of-care (POC) applications, targeting sarcosine as proof-of-concept. Specifically, a methanol fuel cell strip was developed from a square of Whatman paper, acting as substrate. The paper strip was treated with an imper...
Fuel cells operating as an immunosensor for cancer biomarker screening
Ferreira, Nadia S.; Carneiro, Liliana P.T; Pinto, Alexandra M.F.R.; Sales, M. Goreti F.This work presents the first integration of antibodies into one of the electrodes of a passive direct methanol fuel cell (DMFC) to create an autonomous immunosensor for cancer antigen 15–3 (CA15-3). The anode of the fuel cell was first made of carbon cloth with carbon black, platinum and ruthenium nanoparticles and then modified with anti-CA15-3, while the cathode was made of carbon cloth with carbon black and ...
An all-in-one approach for self-powered sensing: A methanol fuel cell modified ...
Carneiro, Liliana P.T; Pinto, Alexandra M.F.R.; Mendes, Adélio; Ferreira Sales, Maria GoretiThis work describes the development of an innovative electrochemical biosensor comprehending a passive direct methanol fuel cell (DMFC) assembly, modified by a layer of a molecularly imprinted polymer (MIP) on a carbon fabric anode electrode containing Pt/Ru nanoparticles. This MIP film was prepared from poly(3,4-ethylenedioxythiophene) (PEDOT) and polypyrrole (PPy) obtained by in situ electropolymerization of ...
Passive direct methanol fuel cells acting as fully autonomous electrochemical b...
Silva Ferreira, Nadia; Carneiro, Liliana P.T; Viezzer, Christian; Almeida, Maria J.T.; Marques, Ana C.; Pinto, Alexandra M.F.R.; Fortunato, ElviraThis work describes an innovative electrochemical biosensor that advances its autonomy toward an equipment-free design. The biosensor is powered by a passive direct methanol fuel cell (DMFC) and signals the response via an electrochromic display. Briefly, the anode side of the DMFC power source was modified with a biosensor layer developed using molecularly imprinted polymer (MIP) technology to detect sarcosine...
A passive direct methanol fuel cell as transducer of an electrochemical sensor,...
Carneiro, Liliana P.T.; Ferreira, Nádia S.; Tavares, Ana P.M.; Pinto, Alexandra M.F.R.; Mendes, Adélio; Sales, Maria Goreti FerreiraThis work describes an electrochemical sensor with a biomimetic plastic antibody film for carcinoembryonic antigen (CEA, an important biomarker in colorectal cancer), integrated in the electrical circuit of a direct methanol fuel cell (DMFC), working in passive mode and used herein as power supply and signal transducer. In detail, the sensing layer for CEA consisted of a Fluorine-doped Tin Oxide (FTO) conductiv...