Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Entropy and Solvation02:05

Entropy and Solvation

6.9K
The process of surrounding a solute with solvent is called solvation. It involves evenly distributing the solute within the solvent. The rule of thumb for determining a solvent for a given compound is that like dissolves like. A good solvent has molecular characteristics similar to those of the compound to be dissolved. For example, polar solutions dissolve polar solutes, and apolar solvents dissolve apolar solutes. A polar solvent is a solvent that has a high dielectric constant (ϵ...
6.9K
Solubility03:00

Solubility

17.1K
Solution, Solubility, and Solubility Equilibrium
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules,...
17.1K
The Water Cycle01:00

The Water Cycle

23.9K
The Earth’s hydrosphere includes all of the areas where the storage and movement of water occurs. Since water is the basis of all living processes, the cycling of water is extremely important to ecosystem dynamics.
23.9K
Covalent Bonds01:08

Covalent Bonds

7.0K
Overview
When two atoms share electrons to complete their valence shells, they create a covalent bond. An atom's electronegativity—the force with which shared electrons are pulled towards an atom—determines how the electrons are shared. Molecules formed with covalent bonds can be either polar or nonpolar. Atoms with similar electronegativities form nonpolar covalent bonds; the electrons are shared equally. Atoms with different electronegativities share electrons unequally,...
7.0K
What are Biogeochemical Cycles?00:54

What are Biogeochemical Cycles?

30.7K
The most common elements in organic molecules, carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus, are only available in the ecosystem in limited amounts. Therefore, these nutrients must be recycled through both biotic and abiotic components of the ecosystem, in processes generally called biogeochemical cycles.
30.7K
Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility02:34

Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility

43.5K
Intermolecular forces are attractive forces that exist between molecules. They dictate several bulk properties, such as melting points, boiling points, and solubilities (miscibilities) of substances. Molar mass, molecular shape, and polarity affect the strength of different intermolecular forces, which influence the magnitude of physical properties across a family of molecules.
Temporary attractive forces like dispersion are present in all molecules, whether they are polar or nonpolar. They...
43.5K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Silver ion reduction in non-aqueous liquid oligomers with terminal epoxy and amino groups for <i>in situ</i> synthesis of silver nanoparticles.

Nanoscale·2026
Same author

Eutectogels as Delivery Media for Therapeutic Metal Complexes: What Are the Benefits?

Gels (Basel, Switzerland)·2026
Same author

Novel ruthenium(II) hexachloromacrobicyclic complexes and their first polyaromatic-terminated diaminoclathrochelate derivative: preparation, structure, redox and adsorption characteristics, and electrocatalytic activity in the hydrogen evolution reaction.

Dalton transactions (Cambridge, England : 2003)·2026
Same author

Injectable Hydrogels with Tissue-Adaptive Gelation and Mechanical Properties: Enhancing Softness and Stability.

Gels (Basel, Switzerland)·2025
Same author

One-pot straightforward access to a cyclometalated acetate platinum(II) complex exhibiting mechanochromic luminescence.

Dalton transactions (Cambridge, England : 2003)·2025
Same author

Structure and supramolecular organization of silver nitrate modified epoxy or amino terminated liquid oligoethers.

The Journal of chemical physics·2025

Related Experiment Video

Updated: May 10, 2025

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification
07:32

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification

Published on: April 7, 2017

9.3K

Hydrophobic GeO2 Aerogels by an Epoxide-Induced Process.

Olga M Gajtko1, Svetlana V Golodukhina1, Sergey Yu Kottsov1

  • 1N.S. Kurnakov Institute of General and Inorganic Chemistry RAS, Leninskii Prosp., 31, Moscow 119991, Russia.

Gels (Basel, Switzerland)
|April 25, 2025
PubMed
Summary

Researchers developed a novel one-pot method for hydrophobic germanium dioxide (GeO2) aerogels. This technique allows tunable surface properties and introduces unique luminescent characteristics for advanced material applications.

Keywords:
aerogelcontact angleepoxide-assisted sol–gel processgelhydrophobicityluminescencesurface area

More Related Videos

Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination
09:39

Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination

Published on: March 1, 2020

7.3K
Soil Lysimeter Excavation for Coupled Hydrological, Geochemical, and Microbiological Investigations
10:30

Soil Lysimeter Excavation for Coupled Hydrological, Geochemical, and Microbiological Investigations

Published on: September 11, 2016

10.6K

Related Experiment Videos

Last Updated: May 10, 2025

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification
07:32

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification

Published on: April 7, 2017

9.3K
Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination
09:39

Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination

Published on: March 1, 2020

7.3K
Soil Lysimeter Excavation for Coupled Hydrological, Geochemical, and Microbiological Investigations
10:30

Soil Lysimeter Excavation for Coupled Hydrological, Geochemical, and Microbiological Investigations

Published on: September 11, 2016

10.6K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Inorganic Chemistry

Background:

  • Hydrophobic aerogels are advanced porous materials with diverse applications.
  • Existing methods for producing germanium dioxide (GeO2) aerogels often lack control over surface properties and hydrophobicity.

Purpose of the Study:

  • To develop a straightforward, one-pot synthesis method for producing hydrophobic GeO2 aerogels.
  • To investigate the influence of precursor ratios on aerogel morphology, porous structure, and surface properties.
  • To explore the luminescent properties of the synthesized hydrophobic GeO2 aerogels.

Main Methods:

  • One-pot synthesis combining epoxide-induced sol-gel process with a co-precursor method.
  • Utilized varying ratios of GeCl4:(C2H5)2GeCl2 as precursors.
  • Characterization using SEM, TEM, low-temperature nitrogen adsorption-desorption, SAXS, and contact angle measurements.

Main Results:

  • Successfully produced hydrophobic GeO2 aerogels with tunable surface properties.
  • Increased (C2H5)2GeCl2 proportion led to higher surface area (45 to 123 m²·g⁻¹) and increased contact angle (22.1° to 140.1°).
  • Reported novel luminescent properties of hydrophobic GeO2 aerogels, with spectral ratios varying based on precursor composition.

Conclusions:

  • The developed one-pot method offers a facile route to hydrophobic GeO2 aerogels with controlled characteristics.
  • Precursor ratio is a key factor in tailoring aerogel morphology, porosity, surface wettability, and luminescence.
  • These findings open avenues for using tailored hydrophobic GeO2 aerogels in applications requiring specific surface and optical properties.