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Demonstration of Caffeine Measurements

Caffeine is a widespread psychoactive substance. Most people consume it regularly in coffee, tea, energy drinks, cola, or similar beverages. It is also used in some medications to...

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Detection of Hydrogen Peroxide 3/5 – What is Prussian Blue?

Prussian Blue (PB) is a deep blue pigment that is hardly soluble in water, but little amounts that are dissolved or dispersed in watercolor the solution intensively blue. Small Prussian Blue particles dispersed in water have been used as the first modern synthetic color. It is also known as Berlin Blue or Turnbull’s Blue. The pigment is used for various paints (Paris Blue) or to make the blue color for blueprints.

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Detection of Hydrogen Peroxide 2/5 – Why detect Hydrogen Peroxide?

In this chapter, we explain what hydrogen peroxide is and why we detect it. Hydrogen peroxide is the simplest peroxide (a compound with an oxygen-oxygen single bond). It is also a strong oxidizer. Due to its oxidizing properties, hydrogen peroxide is often used as a bleach or cleaning agent.

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Detection of Hydrogen Peroxide 1/5 – Introduction

This series of articles aims to provide an introduction to electrochemical experiments. This series in particular deals with the detection of hydrogen peroxide with selfmade Prussian Blue electrodes, and includes an experiment (PDF) you can carry out yourself. 

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Future of electrochemical sensors

Curious how electrochemical sensors will be used in the future? Niels van Velzen, the CTO of PalmSens, explains about biosensor strips and portable readers. The readers perform mea...

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Biosensor

A biosensor is a sensor exploiting a biomolecule and is used to measure the presence of a certain substance in a liquid. For example, the medical world uses biosensors to detect a virus in the blood or to measure glucose levels in blood. These are mainly point-of-care applications, where direct results are important.

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Electrochemical enzymatic biosensors

Do you want to make your own biosensors? How to immobilize the enzymes? Or are you wondering how to measure using a biosensor in a convenient and portable way?

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