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Related Concept Videos

Catalysis02:50

Catalysis

30.1K
The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
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Introduction to Mechanisms of Enzyme Catalysis01:13

Introduction to Mechanisms of Enzyme Catalysis

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For many years, scientists thought that enzyme-substrate binding took place in a simple "lock-and-key" fashion. This model stated that the enzyme and substrate fit together perfectly in one instantaneous step. However, current research supports a more refined view scientists call induced fit. The induced-fit model expands upon the lock-and-key model by describing a more dynamic interaction between enzyme and substrate. As the enzyme and substrate come together, their interaction causes...
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Molecules and Compounds02:38

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Atoms and Molecules
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ATP Driven Pumps I: An Overview01:27

ATP Driven Pumps I: An Overview

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ATP-driven pumps, also known as transport ATPases, are integral membrane proteins. They have binding sites for ATP located on the membrane's cytosolic side and the ion-conducting domain in the transmembrane region. These pumps use the free energy released from ATP hydrolysis to move the solutes across cell membranes against an electrochemical gradient.
There are four main types of ATP-driven pumps - P-type, V-type, F-type, and ABC transporter. All these pumps are of varying complexities and...
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ATP Driven Pumps II: P-type Pumps01:34

ATP Driven Pumps II: P-type Pumps

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The P-type pumps are a large family of integral membrane transporter ATPases. They are divided into five major types based on substrate specificity, from I to V.
A typical P-type pump has three cytosolic domains: nucleotide-binding (N), phosphorylation (P), and activator (A) domains. These domains are connected to the membrane-spanning helices by short amino acid segments. ATP hydrolysis and covalent phosphoenzyme intermediate formation are crucial parts of the catalytic cycle. At the highly...
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Xylem and Transpiration-driven Transport of Resources02:03

Xylem and Transpiration-driven Transport of Resources

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The xylem of vascular plants distributes water and dissolved minerals that are taken up by the roots to the rest of the plant. The cells that transport xylem sap are dead upon maturity, and the movement of xylem sap is a passive process.
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Related Experiment Video

Updated: Jan 20, 2026

Preparation of Silver-Palladium Alloyed Nanoparticles for Plasmonic Catalysis under Visible-Light Illumination
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Preparation of Silver-Palladium Alloyed Nanoparticles for Plasmonic Catalysis under Visible-Light Illumination

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Plasmon-Driven Catalysis on Molecules and Nanomaterials.

Zhenglong Zhang1, Chengyun Zhang1, Hairong Zheng1

  • 1School of Physics and Information Technology , Shaanxi Normal University , Xi'an 710062 , China.

Accounts of Chemical Research
|August 20, 2019
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Summary

Plasmonic noble metal nanoparticles harness solar energy for catalysis. They drive chemical reactions and nanomaterial transformations via surface plasmon resonance, hot electrons, and heat, offering efficient solar-to-chemical energy conversion.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Photocatalysis

Background:

  • Plasmonic noble metal nanoparticles are emerging photocatalysts for solar energy conversion.
  • Surface plasmon resonance (SPR) enables efficient light harvesting and energy transfer.

Purpose of the Study:

  • To review theoretical and experimental advances in plasmonic catalysis mechanisms.
  • To highlight plasmon-driven nanomaterial crystal growth and transformation.

Main Methods:

  • Analysis of excitation mechanisms and energy transfer pathways in plasmonic catalysis.
  • Review of experimental data on plasmon-driven reactions and material transformations.

Main Results:

  • Plasmonic fields enhance reaction efficiency through photon density and resonant energy transfer.
  • Hot electrons and local thermal effects contribute to catalysis.
  • Plasmonic catalysis extends to inducing crystal growth and transformation in nanomaterials.

Conclusions:

  • Plasmonic catalysis offers tunable pathways for molecular reactions and nanomaterial transformations.
  • Understanding these mechanisms is crucial for designing efficient solar-to-chemical energy conversion systems.