Screen-Printed Magnetic Electrode

What is it?

It is a graphite screen-printed electrode coupled with a screen-printed bonded magnet (NdFeB particles dispersed in a thixotropic carbon ink) with 3 mm ∅, 56 ± 6 μm thickness.

Scope

The magnetic screen-printed electrode is a compact, portable, cheap, and disposable alternative to various accessories have been developed aiming to attract MNPs on the electrode surface, such as magnetic electrode shafts, electrochemical cells integrating (electro)magnets, magnetic stickers, etc.

Investigation

In the study parameters as the composition of the NdFeB/ink blend, the thickness and the pattern (compact or hole-engraved) of the printed magnet, and the thickness of the substrate were investigated by both experimental and theoretical studies.

Results

The performance is enhanced if a void round area is created in the center of the magnet to introduce a further area of strong field gradient. This pattern allows the development of stronger attracting forces to MNPs, higher MNPs loading, and a better distribution of them on the electrode surface.

Applications

The electrochemical conversion of surface-confined Fe3O4 MNPs to Prussian blue electroactive moieties and the amperometric determination of hydrogen peroxide

Ultrasensitive determination of riboflavin (vitamin B2) using Ag/Fe3O4 MNP

Reference: https://www.sciencedirect.com/science/article/pii/S0013468620313748

Comments

Penguinone: this is how chemistry community honors Penguins!

What is it? Penguinone is an organic compound with the molecular formula C10H14O. It's name comes from the fact that it's 2-dimensional molecular structure resembles a penguin. The systematic name of the molecule is 3,4,4,5-tetramethylcyclohexa-2,5-dienone. Properties Density: 0.9±0.1 g/cm3 Boiling Point: 215.0±30.0 °C (at 760 mmHg) Vapour Pressure: 0.2±0.4 mmHg at 25°C Enthalpy of Vaporization: 45.1±3.0 kJ/molFlash Point: 79.1±19.5 °C Index Of Refraction: 1.470 Polarizability: 18.1cm3 H- NMR spectrume of Penguinone References: wikipedia.com ~ chemspider.com ~ nmrdb.org

Limonene...a majestic odor in nature!

What is it? Limonene is a colorless liquid hydrocarbon classified as a cyclic terpene. Where can we find it? It is a major constituent in several citrus oils (orange, lemon, mandarin, lime, and grapefruit). Name Limonene takes its name from the lemon, as the rind of the lemon -like other citrus fruits- contains considerable amounts of this compound, which contributes to their odor. Properties IUPAC name: 1-Methyl-4-(1-methylethenyl)-cyclohexeneMolecular Formula: C10H16 Average mass: 136.234Melting Point: -74.35 °C Boiling Point:176 °C Chiral rotation: 87°-102° Isomerism Carbon number four of the cyclohexene ring is chiral. Limonene therefore has two optical isomers. Chiral centres are labelled as R or S using IUPAC nomenclature. But we can found it as d or l or most commonly with (+) or (-). The two enantiomers have identical chemical properties but different odours. R-Limonene smells like orange and S-Limonene smells like lemon. Enantiomers Exception

When casein gets company...milk turn into plastic!

"Plastic made from milk" —that certainly sounds like something made-up. If you agree, you may be surprised to learn that in the early 20th century, milk was used to make many different plastic ornaments —including jewelry for Queen Mary of England! Plastic from milk ~ Casein Plastic ~ Galalith What is it Galalith? Galalith (Erinoid in the United Kingdom) is a synthetic plastic material manufactured by the interaction of casein and formaldehyde. Given a commercial name derived from the Greek words gala (milk) and lithos (stone), it is odourless, insoluble in water, biodegradable, antiallergenic, antistatic and virtually nonflammable. What is Casein? Casein is the name for a family of related phosphoproteins. These proteins are commonly found in mammalian milk, making up 80% of the proteins in cow's milk and between 20% and 45% of the proteins in human milk. Casein has a wide variety of uses, from being a major compon

In-f-Organic Chemistry

Search This Blog