Idioma:

Gold-modified paper as microfluidic substrates with reduced biofouling in potentiometric ion sensing

Ding, Ruiyu ; Joon, Narender Kumar ; Ahamed, Ashiq ; Shafaat, Atefeh ; Guzinski, Marcin ; Wagner, Michal ; Ruzgas, Tautgirdas ; Bobacka, Johan ; Lisak, Grzegorz

Sensors and actuators. B, Chemical, 2021-10, Vol.344, p.130200, Article 130200 [Periódico revisado por pares]

Lausanne: Elsevier B.V

Texto completo disponível

Citações Citado por

Enviar para

Título:
Gold-modified paper as microfluidic substrates with reduced biofouling in potentiometric ion sensing
Autor: Ding, Ruiyu ; Joon, Narender Kumar ; Ahamed, Ashiq ; Shafaat, Atefeh ; Guzinski, Marcin ; Wagner, Michal ; Ruzgas, Tautgirdas ; Bobacka, Johan ; Lisak, Grzegorz
Assuntos: Biofouling ; Body fluids ; Bovine serum albumins ; Cl- ions ; Desalination ; Ellipsometry ; Emission analysis ; Fiber optic sensors ; Gold ; Gold modified paper substrate ; Gold modified paper substrates ; Gold nano-particles ; Gold nanoparticle ; Gold nanoparticles ; Inductively coupled plasma ; Ion selective electrodes ; Ion-selective electrode ; Ions ; Mammals ; Metal nanoparticles ; Microfluidics ; Nanoparticles ; Optical emission spectroscopy ; Paper substrate ; Paper-based solution sampling ; Polyamide resins ; Potentiometers (electric measuring instruments) ; Potentiometric sensors ; Potentiometrics ; Sampling ; Serum albumin ; Sodium ; Solid contacts ; Spectrometry ; Substrates ; Textiles
É parte de: Sensors and actuators. B, Chemical, 2021-10, Vol.344, p.130200, Article 130200
Descrição: [Display omitted] •Paper gold modifications slow down the protein transport across the substrates.•Diminished biofouling of the sensors surface was observed.•Gold nanoparticles were the most effective in slowing down the protein transport.•Substrates were validated in measurements done in clinically relevant samples. Microfluidic sampling media based on paper and its modifications with either gold nanoparticles or sputtered gold were evaluated for potentiometric determination of Na+, K+, and Cl– ions in clinically relevant samples. The measurements were conducted in comparison to other commonly considered microfluidic substrates, i.e. sponge, polyester textile, and polyamide textile. Ion determination was done by using solid-contact ion-selective electrodes based on plasticized PVC membranes for Na+, K+, and Cl– ions and utilizing PEDOT(PSS) or PEDOT(Cl) as the ion-to-electron transducer. The solid-contact ion-selective electrodes and a solid-state reference electrode were placed directly on the substrate into which the sample solution was wicked. Transport of bovine serum albumin (BSA) through the paper substrate was studied by ellipsometry. Modification of the paper substrates by gold nanoparticles (AuNPs) was found to slow down the transport of BSA through the paper, when compared with unmodified paper substrates and when compared with all the other alternative sampling matrices studied. The retention of BSA obtained with AuNP-modified paper substrates significantly improved the accuracy of the potentiometric ion determinations in sweat, saliva, artificial tears, and artificial serum. The potentiometric results were validated by inductively coupled plasma optical emission spectrometry (ICP-OES) and ion chromatography (IC). The study indicates that modification of paper by AuNPs is a feasible approach to reduce biofouling of sensors that are used in the paper-based analysis of clinically relevant samples.
Editor: Lausanne: Elsevier B.V
Idioma: Inglês

Links

View record from Swedish Publication Index

Voltar para lista de resultados

Realização: Logos de Redes Sociais:

Gold-modified paper as microfluidic substrates with reduced biofouling in potentiometric ion sensing

Ding, Ruiyu ; Joon, Narender Kumar ; Ahamed, Ashiq ; Shafaat, Atefeh ; Guzinski, Marcin ; Wagner, Michal ; Ruzgas, Tautgirdas ; Bobacka, Johan ; Lisak, Grzegorz

Lausanne: Elsevier B.V

Buscando em bases de dados remotas. Favor aguardar.