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Related Concept Videos

Metallic Solids02:37

Metallic Solids

16.4K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and...
16.4K
Properties of Transition Metals02:58

Properties of Transition Metals

28.1K
Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.
28.1K
Theory of Metallic Conduction01:17

Theory of Metallic Conduction

2.0K
The conduction of free electrons inside a conductor is best described by quantum mechanics. However, a classical model makes predictions close to the results of quantum mechanics. It is called the theory of metallic conduction.
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...
2.0K
Biasing of Metal-Semiconductor Junctions01:27

Biasing of Metal-Semiconductor Junctions

905
Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
905
Bonding in Metals02:32

Bonding in Metals

45.1K
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”. 
45.1K
Metal-Semiconductor Junctions01:24

Metal-Semiconductor Junctions

1.4K
The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
1.4K

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Updated: Apr 28, 2026

A Method to Manipulate Surface Tension of a Liquid Metal via Surface Oxidation and Reduction
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A Method to Manipulate Surface Tension of a Liquid Metal via Surface Oxidation and Reduction

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Gallium-Based Liquid Metals: From Properties to Applications.

Zhonggui Li1, Xinyi Han1, Xiaoyu Guo1

  • 1Centre for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement, School of Physics, Beijing Institute of Technology, Beijing 100081, China.

Nanomaterials (Basel, Switzerland)
|April 27, 2026
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Summary

Gallium-based liquid metals offer unique properties for advanced applications. This review highlights their use in sensing, biomedical engineering, energy, and catalysis, showcasing their potential for future technological innovation.

Keywords:
biocompatibilitycatalysisgalliumliquid metalssensors

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Engineering

Background:

  • Gallium-based liquid metals exhibit unique properties like low melting point, fluidity, and high conductivity.
  • These materials combine metallic and liquid characteristics at room temperature.
  • Their biocompatibility and low toxicity are crucial for specific applications.

Purpose of the Study:

  • To systematically review the fundamental properties of gallium-based liquid metals.
  • To examine their advanced multifunctional applications across diverse fields.
  • To provide perspectives on future developments and opportunities.

Main Methods:

  • Literature review of fundamental properties and applications.
  • Analysis of advancements in sensing, biomedical engineering, energy, and catalysis.
  • Synthesis of current research and future outlook.

Main Results:

  • Gallium-based liquid metals enable compliant sensors for strain, temperature, and electromagnetic fields.
  • They are key to biosensing, drug delivery, and tissue engineering scaffolds.
  • Applications in batteries, thermoelectrics, and CO2 conversion catalysis are advancing.

Conclusions:

  • Gallium-based liquid metals are versatile materials with significant potential.
  • Continued research promises breakthroughs in sensing, medicine, energy, and catalysis.
  • Further development is expected to unlock new technological opportunities.