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Related Concept Videos

Overview of Advanced Functional Groups02:22

Overview of Advanced Functional Groups

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Functional groups are groups of atoms with specific chemical properties that occur within organic molecules and are sometimes denoted as “R”. Functional groups can “functionalize” a compound by enabling it to adopt different physical and chemical properties.
Types of Advanced Functional Groups
The table below summarizes some of the major functional groups in organic chemistry.
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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
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Accurate analysis of complex samples often requires advanced preparation techniques to achieve reliable and reproducible results. Samples containing inorganic or organic materials can be challenging to dissolve or decompose effectively. Standard sample preparation methods include acid digestion, fusion, dry ashing, and wet digestion.
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To consistently produce healthy cells, the cell cycle—the process that generates daughter cells—must be precisely regulated.
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Related Experiment Video

Updated: Feb 8, 2026

3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache
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Recent advances in headache neuroimaging.

Roberta Messina1,2, Massimo Filippi2, Peter J Goadsby1,3

  • 1Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom.

Current Opinion in Neurology
|June 29, 2018
PubMed
Summary
This summary is machine-generated.

Recent neuroimaging studies reveal widespread brain abnormalities and network dysfunction in migraine and cluster headache patients. This research enhances our understanding of these disabling neurological conditions and informs new treatment strategies.

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Area of Science:

  • Neurology
  • Neuroimaging
  • Neuroscience

Background:

  • Primary headaches, including migraine and cluster headache, are prevalent and disabling neurological disorders.
  • Neuroimaging has significantly advanced the understanding of headache pathophysiology and treatment mechanisms.

Purpose of the Study:

  • To review recent neuroimaging findings in migraine and cluster headache.
  • To highlight structural and functional brain abnormalities and network dysfunctions in headache patients.
  • To explore novel mechanisms of action for headache preventive treatments.

Main Methods:

  • Review of recent scientific literature on neuroimaging studies of migraine and cluster headache.
  • Analysis of findings related to structural and functional brain abnormalities.
  • Investigation of brain network alterations and treatment mechanisms.

Main Results:

  • Identified widespread structural and functional abnormalities in cortical and subcortical areas involved in pain processing.
  • Demonstrated the contribution of dysfunctional brain networks to headache pathophysiology.
  • Explored new central mechanisms of action for preventive headache therapies.

Conclusions:

  • Advances in neuroimaging have deepened the understanding of migraine and cluster headache biology.
  • This knowledge facilitates the development of improved treatments for primary headaches.
  • Further research is needed to address remaining questions in headache pathophysiology and treatment.