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Related Concept Videos

Photoluminescence: Applications01:14

Photoluminescence: Applications

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Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
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Photoluminescence: Fluorescence and Phosphorescence01:23

Photoluminescence: Fluorescence and Phosphorescence

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Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...
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Wood Products01:21

Wood Products

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Wood products encompass a broad range of materials crafted from wood strands, veneers, lumber, and even waste wood-like shreds, designed for both structural and nonstructural purposes. Various specialized wood products have been developed to enhance strength, durability, and versatility in building applications.
Glue-laminated wood, often referred to as glulam, combines multiple smaller pieces of dimensional lumber using adhesives to form a single, larger piece. Cross-laminated timber consists...
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Flame Photometry: Lab01:16

Flame Photometry: Lab

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In a flame photometer, when a solution like potassium chloride is aspirated into the flame, the solvent evaporates, leaving behind dehydrated salt. This salt dissociates into free gaseous atoms in their ground state. Some of these atoms absorb energy from the flame, leading to their excitation. The excited atoms return to the ground state, emitting photons at characteristic wavelengths. Because only electronic transitions are involved, the resulting emission lines are very narrow. The intensity...
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Variables Affecting Phosphorescence and Fluorescence01:26

Variables Affecting Phosphorescence and Fluorescence

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Fluorescence and phosphorescence are essential phenomena in fields like analytical chemistry, biological imaging, and materials science, where they detect molecular properties and visualize cellular structures. Understanding the variables that influence these luminescent behaviors is crucial for maximizing accuracy and efficiency in their applications. These variables can broadly be grouped into chemical structure, solvent properties, and external conditions, each playing a distinct role in...
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Flame Photometry: Overview01:02

Flame Photometry: Overview

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Flame photometry, also known as flame emission spectrometry, is a technique used for the qualitative and quantitative analysis of elements present in a sample using a flame as the source of excitation energy. The concept of flame photometry was realized in the early 1860s by Kirchhoff and Bunsen, who discovered that specific elements emit characteristic radiation when excited in flames. The first instrument developed for this purpose was used to measure sodium (Na) in plant ash using a Bunsen...
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A Novel Technique for Generating and Observing Chemiluminescence in a Biological Setting
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Chemiluminescent wood.

Maximilian Ritter1, Laura Stricker2, Ingo Burgert1

  • 1Wood Materials Science, Institute for Building Materials, ETH Zürich, 8093 Zürich, Switzerland; WoodTec group, Cellulose and Wood Materials, Empa - Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland.

Carbohydrate Polymers
|June 1, 2024
PubMed
Summary
This summary is machine-generated.

Researchers developed light-emitting wood by incorporating chemiluminescent systems. This functionalized wood shows complex interactions and allows studying light propagation, inspiring new optical and sensor applications.

Keywords:
ChemiluminescenceHydrogen peroxideLight emissionPeroxyoxalateWood

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Area of Science:

  • Materials Science
  • Optics and Photonics
  • Biomaterials

Background:

  • Wood materials offer unique properties for advanced applications.
  • Functionalization of wood can lead to novel optical and photonic materials.
  • Chemiluminescent systems can be integrated into materials for light emission.

Purpose of the Study:

  • To functionalize wood with artificial chemiluminescent systems.
  • To characterize the light emission properties of functionalized wood.
  • To investigate the interaction between wood's structure and chemiluminescence.

Main Methods:

  • Incorporation of phenyl oxalate ester–hydrogen peroxide–fluorophore and luminol–ferricyanide systems into wood.
  • Detailed characterization of light emission features.
  • Analysis of chemiluminescent front propagation using wood's anisotropic properties.

Main Results:

  • Successful creation of light-emitting wood materials.
  • Identification of quenching effects from wood extractives and lignin on chemiluminescence.
  • Demonstration of studying chemiluminescent front propagation within wood structure.

Conclusions:

  • Wood can be functionalized to create light-emitting materials.
  • Wood's intrinsic properties influence chemiluminescent system performance.
  • This approach opens avenues for novel wood-based optical devices, sensors, and design elements.