Aptamer-based biosensor for label-free detection of ethanolamine by electrochemical impedance spectroscopy

A Low-Cost Inkjet-Printed Aptamer-Based Electrochemical Biosensor for the Selective Detection of Lysozyme

“…Existing aptamer-based biosensors use different detection schemes such as high-performance liquid chromatography (HPLC), quartz crystal microbalance (QCM), surface plasmon resonance (SPR), and fluorescence-based optical detection. However, these methods suffer from several drawbacks as they are often time-consuming, expensive, operated by highly-trained technicians, and performed in a laboratory setting [ 2 , 15 ]. However, as an alternative, electrochemical detection offers the potential for a rapid, low-cost, and sensitive detection of the target species.…”

Lab-on-a-Chip Systems for Aptamer-Based Biosensing

“…Because of these advantages, aptamers are often used as an integral part of biosensors leading to the creation of the term aptasensors to describe aptamer-based biosensors. There are different classifications of aptasensors depending on the type of transduction mechanisms employed such as mass-based (i.e., quartz crystal microbalance (QCM)) [6,7], electrochemical (amperometric, voltammetry, impedimetric) [8][9][10][11][12][13][14][15][16][17][18], optical [19][20][21][22][23] or field-effect transistor (FET)-based methods [24][25][26].…”

A simple gold nanoplasmonic SERS method for trace Hg2+ based on aptamer‐regulating graphene oxide catalysis

“…An aptamer is a short oligonucleotide sequence obtained by in vitro screening, and can combine with a variety of targets with high specificity and high affinity. Researchers have developed some aptamer sensors for small or micro‐molecules and heavy metal ions . Recently, Apt–GO biosensors have been used to detect nucleic acids, proteins, small biological molecules and others .…”