Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Bonding in Metals

Bonding in Metals

Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”.

Metal-Ligand Bonds

Metal-Ligand Bonds

The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...

Alkali Metals

Alkali Metals

Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals

Formation of Complex Ions

Formation of Complex Ions

A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...

Precipitation of Ions

Precipitation of Ions

Predicting Precipitation
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:

Ions and Ionic Charges

Ions and Ionic Charges

In ordinary chemical reactions, the nucleus — which contains the protons and neutrons of each atom and thus identifies the element — remains unchanged. Electrons, however, can be added to atoms by transfer from other atoms, lost by transfer to other atoms, or shared with other atoms. The transfer and sharing of electrons among atoms govern the chemistry of the elements. During the formation of some compounds, atoms gain or lose electrons to form electrically charged particles called...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

One-Pot Synthesis of Functionalized Coumarin Fluorophores Enables Rapid Access to Live-Cell Bioorthogonal Labeling and Microenvironmental Sensing Agents.

Bioconjugate chemistry·2026

Same author

Triple threat bismuth peptide imaging in cells.

Chemical science·2026

Same author

A printable, unimolecular, core-shell polymer bottlebrush-based signal transducer using solvatochromatic reporting.

Chemical science·2025

Same author

Unimolecular thermometers: core-shell polymer bottlebrushes with solvatochromic responses to temperature.

Chemical communications (Cambridge, England)·2025

Same author

Imaging Copper Levels during Life in the Brain and beyond Using a Fluorescent Copper Sensor with Multimodal Capacity.

Chemical & biomedical imaging·2025

Same author

Exploring 4-Amino-1,8-Naphthalimides: Lifetime-Based Sensing of Chemical Micro-Environments.

Chemistry (Weinheim an der Bergstrasse, Germany)·2025

Search research articles

Related Experiment Video

Updated: Feb 2, 2026

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides

Published on: September 7, 2019

Pattern recognition of toxic metal ions using a single-probe thiocoumarin array.

David G Smith¹, Linda Mitchell¹, Elizabeth J New¹

¹School of Chemistry, The University of Sydney, NSW 2006, Australia. elizabeth.new@sydney.edu.au.

|November 28, 2018

Summary

A novel single molecule sensor identifies toxic metal ions in water using varying solvent responses. This pattern recognition approach accurately detects metals in pure and lake water, showing promise for environmental monitoring.

More Related Videos

Electronic Tongue Generating Continuous Recognition Patterns for Protein Analysis

Electronic Tongue Generating Continuous Recognition Patterns for Protein Analysis

Published on: September 16, 2014

Engineering Molecular Recognition with Bio-mimetic Polymers on Single Walled Carbon Nanotubes

Engineering Molecular Recognition with Bio-mimetic Polymers on Single Walled Carbon Nanotubes

Published on: January 10, 2017

Related Experiment Videos

Last Updated: Feb 2, 2026

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides

Published on: September 7, 2019

Electronic Tongue Generating Continuous Recognition Patterns for Protein Analysis

Electronic Tongue Generating Continuous Recognition Patterns for Protein Analysis

Published on: September 16, 2014

Engineering Molecular Recognition with Bio-mimetic Polymers on Single Walled Carbon Nanotubes

Engineering Molecular Recognition with Bio-mimetic Polymers on Single Walled Carbon Nanotubes

Published on: January 10, 2017

Area of Science:

Analytical Chemistry
Environmental Science
Materials Science

Background:

Pattern recognition methods like principal component analysis (PCA) and linear discriminant analysis (LDA) are crucial for identifying analytes, particularly metal ions.
Current methods often rely on multiple molecular probes with cross-reactivity, necessitating complex arrays.
Developing a single, versatile probe that can generate diverse responses is key to simplifying detection systems.

Purpose of the Study:

To develop a single molecule sensor capable of identifying toxic metal ions.
To leverage varying molecular responses in different solvents to create array diversity.
To assess the efficacy of this system for detecting toxic metals in environmental water samples.

Main Methods:

Utilized a single molecule exhibiting differential responses across various solvents.
Combined the molecule's response with solvent selection to generate a diverse detection array.
Applied pattern recognition techniques, specifically PCA and LDA, for data analysis.
Tested the system with seven toxic metal ions in aqueous samples, including pure and doped lake water.

Main Results:

The developed array successfully identified all seven toxic metal ions in pure water samples.
Accurate identification of all metals was also achieved in doped lake water samples.
Explored the limit of detection for copper (Cu(II)) and mercury (Hg(II)), demonstrating system sensitivity.

Conclusions:

A single molecule sensor combined with solvent variation offers a powerful approach for toxic metal ion identification.
The system demonstrates high accuracy and sensitivity for detecting toxic metals in diverse water matrices.
This technology holds significant promise for real-time monitoring of toxic metals in environmental water sources.