Recognition and sensing of fluoride anion
Massimo Cametti1, Kari Rissanen
1University of Rome La Sapienza, Rome, Italy. massimo.cametti@uniroma1.it
Chemical Communications (Cambridge, England)
|May 14, 2009
Summary
Chemists are developing new methods for fluoride anion recognition due to its dual role in industry and health. This research focuses on effective fluoride binding, particularly in challenging environments like water.
Area of Science:
- Analytical Chemistry
- Environmental Science
- Toxicology
Background:
- Fluoride anion recognition is crucial due to fluoride's beneficial industrial uses and dietary presence.
- Emerging concerns link fluoride exposure to various human pathologies, necessitating careful monitoring.
- The duplicitous nature of fluoride drives significant scientific interest in its detection and management.
Purpose of the Study:
- To review diverse chemical approaches for selective fluoride anion binding.
- To highlight research advancements in fluoride recognition, especially in aqueous and protic media.
- To provide insights into developing effective fluoride sensing and sequestration strategies.
Main Methods:
- Comprehensive literature review of chemical sensing and binding methodologies for fluoride.
- Analysis of various chemosensors and receptors designed for fluoride ion detection.
- Evaluation of strategies for fluoride recognition in competitive solvent systems.
Main Results:
- A wide array of chemical strategies for fluoride binding has been developed globally.
- Significant progress has been made in designing receptors for fluoride recognition in protic solvents.
- Challenges remain in achieving high selectivity and sensitivity in complex matrices.
Conclusions:
- Continued innovation in fluoride anion recognition is essential for both industrial applications and health risk assessment.
- Developing robust fluoride sensors for aqueous environments is a key research frontier.
- Further research is needed to translate laboratory findings into practical applications for fluoride management.
Related Concept Videos
03:07Electron Affinity
The electron affinity (EA) is the energy change for adding an electron to a gaseous atom to form an anion (negative ion).
02:42Ionic Crystal Structures
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
01:29Atomic Fluorescence Spectroscopy
Atomic fluorescence spectroscopy (AFS) is an analytical technique that involves the electronic transitions of atoms in a flame, furnace, or plasma being excited by electromagnetic (EM) radiation. When these atoms absorb energy, they become excited and subsequently release energy as they return to their original state. This emitted light, or "fluorescence," is observed at a right angle to the incident beam. Both absorption and emission processes transpire at distinct wavelengths, which are...
03:10Precipitation Reactions
In a precipitation reaction, aqueous solutions of soluble salts react to give an insoluble ionic compound – the precipitate. The reaction occurs when oppositely charged ions in solution overcome their attraction for water and bind to each other, forming a precipitate that separates out from the solution. Since such reactions involve the exchange of ions between ionic compounds in aqueous solution, they are also referred to as double displacement, double replacement, exchange reactions, or...
01:13Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene
Bromination and chlorination of aromatic rings by electrophilic aromatic substitution reactions are easily achieved, but fluorination and iodination are difficult to achieve. Fluorine is so reactive that its reaction with benzene is difficult to control, resulting in poor yields of monofluoroaromatic products. To address this, Selectfluor reagent is used as a fluorine source in which a fluorine atom is bonded to a positively charged nitrogen.
01:03Olfactory Receptors: Location and Structure
The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...