Studi Literatur Screen Printed Electrode (SPE) dan Aplikasinya untuk Deteksi Asam Askorbat, Asam Urat, dan Dopamin
Abstract
Sensor elektrokimia dalam perkembangannya banyak menggunakan screen printed electrode (SPE) karena dapat difabrikasi secara massal, mudah digunakan, portable, ekonomis, dan sekali pakai. Penelitian ini bertujuan meninjau berbagai tulisan mengenai screen printed electrode (SPE) meliputi aspek desain bentuk SPE, teknik fabrikasi SPE, material konduktif pada pembuatan SPE, dan aplikasi SPE pada sensor asam askorbat, asam urat, dan dopamin. Telaah pustaka dilakukan menggunakan mesin pencarian dalam database ilmiah. SPE terdiri atas substrat inert kimiawi dimana tiga elektrode, termasuk elektrode kerja, elektrode pembanding, dan elektrode tambahan, dicetak pada substrat. Elektrode kerja biasanya terbuat dari bahan berbasis logam seperti emas dan perak serta bahan berbasis karbon atau turunan karbon seperti grafit, grafena, dan karbon nanotube, sedangkan tinta untuk elektrode pembanding terbuat dari tinta perak. Fabrikasi SPE dilakukan menggunakan teknik sablon, painting, dan inkjet printing. Aplikasi SPE untuk deteksi molekul biologis telah dilaporkan antara lain pada deteksi asam askorbat, asam urat, dan dopamin. Electrochemical sensors in their development are widely used screen-printed electrodes (SPE) because they can be mass-fabricated, easy to use, portable, low cost, and disposable. This study aims to review various articles on screen-printed electrodes (SPE), including features of SPE design, SPE fabrication techniques, conductive materials in SPE manufacture, and SPE applications in ascorbic acid, uric acid, and dopamine sensors. The literature review was done using a scientific database search engine. The SPE consists of a chemical substrate in which three electrodes, including the working electrode, reference electrode, and counter electrode, are printed on the substrates. The working electrodes are usually made of metal-based materials such as gold and silver, and carbon-based materials or carbon derivatives such as graphite, graphene, and carbon nanotubes. At the same time, the refrence electrode used silver-based ink. SPE fabrication is carried out using screen-printing, painting, and inkjet printing techniques. SPE applications for detecting biological molecules have been reported, among others, in the detecting ascorbic acid, uric acid, and dopamine.
Collections
- UT - Chemistry [2060]