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Related Concept Videos

Essential Minerals for Bone Health01:31

Essential Minerals for Bone Health

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The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
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Complement System01:27

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The complement system is a group of approximately 20 plasma proteins that strengthen the body's defenses against infections through opsonization, inflammation, and cell lysis. Opsonization involves coating pathogens with complement proteins, making them more recognizable and facilitating phagocyte engulfment. Certain complement proteins induce inflammation that attracts immune cells to the site of infection. Cell lysis involves the destruction of pathogens through the formation of a...
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EDTA: Auxiliary Complexing Reagents01:26

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EDTA titrations are usually carried out in highly basic conditions, where the fully deprotonated form of EDTA, Y4−, actively complexes with the free metal ions in the solution. Several metal ions precipitate as hydrous oxide (hydroxides, oxides, or oxyhydroxides) under these conditions, lowering the concentration of free metal ions in the solution. For this reason, auxiliary complexing agents or ligands such as ammonia, tartrate, citrate, or triethanolamine are used in EDTA titrations to...
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Masking and Demasking Agents01:19

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EDTA titrations may necessitate masking and demasking agents to temporarily protect a particular metal ion in a mixture from the EDTA reaction. These agents facilitate the sequential analysis of the metal ions by forming stable complexes with some—but not all—metal ions during certain steps.
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Complexometric Titration: Ligands00:43

Complexometric Titration: Ligands

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Different monodentate and polydentate ligands are used as complexing agents in complexometric titration reactions. The formation of complexes by mono- and bidentate ligands involves two or more intermediate steps, limiting their use as complexing agents. In comparison, polydentate ligands can form complexes with metal ions in a single-step process, facilitating sharper end points. This means polydentate ligands, such as amino carboxylic acid derivatives, are most commonly employed in...
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Related Experiment Video

Updated: Dec 29, 2025

Platelet-Derived Extracellular Vesicle Functionalization of Ti Implants
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Fluoride Modification of Titanium Surfaces Enhance Complement Activation.

Maria H Pham1, Håvard J Haugen1, Janne E Reseland1

  • 1Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, 0317 Oslo, Norway.

Materials (Basel, Switzerland)
|February 8, 2020
PubMed
Summary
This summary is machine-generated.

Fluoride-modified titanium dental implants alter complement cascade biomarkers. This surface treatment may enhance tissue growth, remodeling, and repair, potentially improving implant performance.

Keywords:
acute reactionbiomaterialsbuffy coatdental implantssurface modificationtitaniumhydrofluoric acid

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Related Experiment Videos

Last Updated: Dec 29, 2025

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Area of Science:

  • Biomaterials Science
  • Immunology
  • Dental Implantology

Background:

  • Dental implant surfaces interact with blood, triggering inflammatory responses and complement cascades.
  • Understanding these early interactions is crucial for improving dental implant success.

Purpose of the Study:

  • To investigate the effect of fluoride-modified titanium surfaces on complement cascade activation.
  • To use human buffy coat as a model to assess these inflammatory responses.

Main Methods:

  • Human buffy coats were exposed to hydrofluoric acid-modified titanium surfaces.
  • Complement cascade biomarkers were identified and quantified using ELISA and Luminex multianalyte profiling.

Main Results:

  • Modified surfaces showed lower C3 levels at 30 minutes.
  • Increased levels of C4, MIP-4, CRP, and pigment epithelium-derived factor were observed at 360 minutes compared to controls.

Conclusions:

  • Hydrofluoric acid treatment of titanium surfaces alters specific complement cascade and angiogenesis biomarkers.
  • These modifications may contribute to enhanced tissue growth, remodeling, and repair, potentially improving fluoride-modified Ti dental implant clinical performance.