Demonstrating the Antioxidative Capacity of Substances with Lightsticks

Wieczorek, Robert; Sommer, Katrin

doi:10.1021/ed900043a

“…The overall, light emitting reaction in lightsticks is the oxidation of phenyl oxalate esters by hydrogen peroxide to generate phenol derivatives and carbon dioxide. 1,8,9 A base (often salicylate, C 7 H 5 O 3…”

Section: Reactions In Lightsticksmentioning

confidence: 99%

The Chemistry of Lightsticks: Demonstrations To Illustrate Chemical Processes

Kuntzleman

¹

,

Rohrer

²

,

Schultz

³

2012

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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“…This system is easier to work with, produces light for long enough that students can make accurate time measurements, and is visibly affected by pH, temperature, and the presence of a catalyst, giving students a wide range of parameters that they can investigate. It is also a system that has been used in prior laboratory activities published in this Journal . − The novelty of this activity rests in the fact that it has an explicit emphasis on the Scientific and Engineering Practices from the Framework , serving as a guide or template for how these practices can be incorporated into existing laboratory activities. The scenario for this project is shown in Box .…”

Section: Experiments Detailsmentioning

confidence: 99%

A Glowing Recommendation: A Project-Based Cooperative Laboratory Activity To Promote Use of the Scientific and Engineering Practices

Carmel

¹

,

Ward

²

,

Cooper

³

2017

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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“…Chemiluminescence is another topic that has been extensively covered in the chemistry curriculum (9)(10)(11)(12)(13)(14). In fact, chemiluminescent reactions have even been referred to as the most "exocharmic" reactions known, based on the high interest they generate in students and other observers (9).…”

Section: Introductionmentioning

confidence: 99%

“…In fact, chemiluminescent reactions have even been referred to as the most "exocharmic" reactions known, based on the high interest they generate in students and other observers (9). Chemiluminescent reactions have been used to introduce students to topics as varied as fluorescence, kinetics, thermodynamics, chromatography, catalysis, organic synthesis, and principles of green chemistry (9)(10)(11)(12)(13)(14). Many of these experiments have focused on the chemistry of glow sticks, which provide very easily obtained sources of chemiluminescent reactions.…”

Section: Introductionmentioning

confidence: 99%

Extraction of dyes contained in glow sticks using liquid CO₂

Baldwin

¹

,

Bunker

²

,

Kuntzleman

³

2019

Green Chemistry Letters and Reviews

1

0

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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Demonstrating the Antioxidative Capacity of Substances with Lightsticks

Cited by 6 publications

References 10 publications

The Chemistry of Lightsticks: Demonstrations To Illustrate Chemical Processes

The Chemistry of Lightsticks: Demonstrations To Illustrate Chemical Processes

A Glowing Recommendation: A Project-Based Cooperative Laboratory Activity To Promote Use of the Scientific and Engineering Practices

Extraction of dyes contained in glow sticks using liquid CO₂

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Demonstrating the Antioxidative Capacity of Substances with Lightsticks

Cited by 6 publications

References 10 publications

The Chemistry of Lightsticks: Demonstrations To Illustrate Chemical Processes

The Chemistry of Lightsticks: Demonstrations To Illustrate Chemical Processes

A Glowing Recommendation: A Project-Based Cooperative Laboratory Activity To Promote Use of the Scientific and Engineering Practices

Extraction of dyes contained in glow sticks using liquid CO2

Contact Info

Product

Resources

About

Extraction of dyes contained in glow sticks using liquid CO₂