Although DNA has been quite successful in metal cation detection, anion detectioin remains
challenging because of the charge repulsion. Metal oxides represent a very important class …

Adsorbing DNA oligonucleotides onto nanoparticles is the first step in developing DNA-
based biosensors, drug delivery systems, and smart materials. Since DNA is a polyanion, it …

Arsenic (As) contamination in groundwater presents a major health and environmental
concern in developing countries. Typically, As is found in two oxidation states. Most …

Iron oxide nanoparticles adsorb fluorescently labeled DNA oligonucleotides via the
backbone phosphate and quench fluorescence. Arsenate displaces adsorbed DNA to …

Nanomaterials have greatly boosted the biosensor field taking advantage of their optical,
catalytic, magnetic and adsorption properties. While noble metal and carbon-based …

Various sensing platforms based on molecular or nanosystems are widely exploited through
molecular diversity and specific recognition. However, it is extremely challenging to develop …

Metal ion detection is critical in a variety of areas. The past decade has witnessed great
progress in the development of metal ion sensors using functional nucleic acids (FNAs) and …

Manganese dioxide (MnO2) is an interesting material due to its excellent biocompatibility
and magnetic properties. Adsorption of DNA to MnO2 is potentially of interest for drug …

Nanomaterials for DNA adsorption are useful for sequence-specific DNA detection. Current
materials for DNA adsorption employ electrostatic attraction, hydrophobic interaction, or π–π …

Most metal sensors are designed for a strong binding affinity toward target metal ions, and
the underlying principle relies on binding thermodynamics. The kinetic aspect of binding …