Related Experiment Video
Updated: Nov 21, 2025
08:01
Sulfate Separation by Selective Crystallization with a Bis-iminoguanidinium Ligand
Published on: September 8, 2016
8.7K
Hydrogen bond regulated hydrogen sulfate ion recognition: an overview
Suvendu Paul1, Tapas Majumdar1, Arabinda Mallick2
1Department of Chemistry, University of Kalyani, Kalyani, Nadia, West Bengal-741235, India. tapasmju@gmail.com.
Dalton Transactions (Cambridge, England : 2003)
|January 13, 2021
Summary
This review details advancements in optical sensors for detecting hydrogen sulfate (HSO4-), crucial for biological and environmental monitoring. It highlights sensor mechanisms and performance metrics over the last two decades.
Area of Science:
- Analytical Chemistry
- Environmental Science
- Biochemistry
Background:
- Hydrogen sulfate (HSO4-) plays a critical role in numerous physiological and environmental processes.
- Accurate detection of HSO4- is essential for monitoring biological systems and environmental health.
- Existing detection methods necessitate the development of advanced sensing technologies.
Purpose of the Study:
- To provide a comprehensive review of optical sensors for HSO4- detection.
- To emphasize the progress in optical recognition of HSO4- based on hydrogen bonding over the past 20 years.
- To discuss the underlying mechanisms and key performance aspects of HSO4- sensors.
Main Methods:
- Review of scientific literature focusing on optical HSO4- sensors.
- Analysis of sensing mechanisms including hydrogen-bond-driven proton transfer, ESIPT, ICT, PET, CHEF, and TBET.
- Evaluation of sensor performance characteristics such as selectivity, sensitivity, and reusability.
Main Results:
- Significant progress has been made in developing colorimetric and fluorimetric HSO4- sensors.
- Hydrogen bonding interactions are a key strategy for the optical recognition of HSO4-.
- Various photophysical mechanisms enable sensitive and selective detection, with some sensors allowing for naked-eye observation and in vivo applications.
Conclusions:
- Optical sensors based on hydrogen bonding have shown remarkable advancements for HSO4- detection.
- Understanding the correlation between photophysical changes and interaction mechanisms is crucial for sensor design.
- These sensors offer promising tools for HSO4- monitoring in diverse applications, including biological and environmental fields.
More Related Videos
Related Concept Videos
01:04Hydrogen Bonds
11.7K
A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...
11.7K
00:26Hydrogen Bonds
128.7K
Hydrogen bonds are weak attractions between atoms that have formed other chemical bonds. One of these atoms is electronegative, like oxygen, and has a partial negative charge. The other is a hydrogen atom that has bonded with another electronegative atom and has a partial positive charge.
Hydrogen Bonds Control the World!
Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared....
Hydrogen Bonds Control the World!
Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared....
128.7K
01:01Introduction to Chemical Bonds
10.5K
Chemical Bonds
The electrons of the outermost energy level determine the energetic stability of the atom and its tendency to form chemical bonds with other atoms. The innermost electron shell has a maximum capacity of two electrons, but the next two electron shells can each have a maximum of eight electrons. This is known as the octet rule, which states that, with the exception of the innermost shell, atoms are most stable energetically when they have eight electrons in their valence shell, the...
The electrons of the outermost energy level determine the energetic stability of the atom and its tendency to form chemical bonds with other atoms. The innermost electron shell has a maximum capacity of two electrons, but the next two electron shells can each have a maximum of eight electrons. This is known as the octet rule, which states that, with the exception of the innermost shell, atoms are most stable energetically when they have eight electrons in their valence shell, the...
10.5K
03:05Acid Strength and Molecular Structure
31.9K
Binary Acids and Bases
In the absence of any leveling effect, the acid strength of binary compounds of hydrogen with nonmetals (A) increases as the H-A bond strength decreases down a group in the periodic table. For group 17, the order of increasing acidity is HF < HCl < HBr < HI. Likewise, for group 16, the order of increasing acid strength is H2O < H2S < H2Se < H2Te. Across a row in the periodic table, the acid strength of binary hydrogen compounds increases with increasing...
In the absence of any leveling effect, the acid strength of binary compounds of hydrogen with nonmetals (A) increases as the H-A bond strength decreases down a group in the periodic table. For group 17, the order of increasing acidity is HF < HCl < HBr < HI. Likewise, for group 16, the order of increasing acid strength is H2O < H2S < H2Se < H2Te. Across a row in the periodic table, the acid strength of binary hydrogen compounds increases with increasing...
31.9K
02:45Valence Bond Theory
44.9K
Overview of Valence Bond Theory
44.9K
02:42Valence Bond Theory
10.2K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
10.2K