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

Physical Properties of Alcohols and Phenols02:32

Physical Properties of Alcohols and Phenols

14.4K
Alcohols are organic compounds in which a hydroxy group is attached to a saturated carbon. Phenols are a class of alcohols containing a hydroxy group attached to an aromatic ring. The physical properties of the alcohols and phenols are influenced by hydrogen bonding due to the oxygen–hydrogen dipole in the hydroxy functional group and dispersion forces between alkyl or aryl regions of alcohol and phenol molecules.
Alcohols possess a higher boiling point than aliphatic hydrocarbons of...
14.4K
Preparation of Alcohols via Addition Reactions02:15

Preparation of Alcohols via Addition Reactions

6.3K
Overview
The acid-catalyzed addition of water to the double bond of alkenes is a large-scale industrial method used to synthesize low-molecular-weight alcohols. An acidic atmosphere is required to allow the hydrogen in the water molecule to act as an electrophile and attack the double bond in an alkene. The addition of a proton to the double bond creates a carbocation intermediate. The proton preferentially bonds to the less substituted end of the double bond to create a more stable carbocation...
6.3K
¹H NMR of Labile Protons: Temporal Resolution01:10

¹H NMR of Labile Protons: Temporal Resolution

1.1K
Protons bonded to heteroatoms such as nitrogen and oxygen exhibit a range of chemical shift values. This is due to the varying degree of hydrogen bonding between the proton and the heteroatom in other molecules. The extent of hydrogen bonding affects the electron density around the proton, thereby giving different chemical shift values for the protons in the proton NMR spectrum.
The –OH proton in alcohols typically appears in the range of δ 2 to 5 ppm but can vary depending on the specific...
1.1K
Physical Properties of Ethers02:17

Physical Properties of Ethers

7.1K
Overview
An ether molecule has a net dipole moment due to the polarity of C–O bonds. Subsequently, boiling points of ethers are lower than those of alcohols of comparable molecular weight and slightly higher than those of hydrocarbons of comparable molecular weight (Table 1).
Ethers can act as hydrogen bond acceptors, making them more water-soluble than hydrocarbons, but since ethers cannot act as hydrogen bond donors, they are much less soluble in water than alcohols. Ethers are considered...
7.1K
Vapor Pressure02:34

Vapor Pressure

35.0K
When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase molecules move randomly about, they will occasionally collide with the surface of the condensed phase, and in some cases, these collisions will result in the molecules re-entering the condensed phase. The change from the gas phase to the liquid is called condensation. When the rate of condensation becomes equal to the rate of vaporization, neither the amount of the liquid nor the amount of the vapor...
35.0K
Protection of Alcohols02:31

Protection of Alcohols

7.3K
This lesson delves into the concept of protection and deprotection of a functional group fundamental to synthetic organic chemistry. These phenomena are explained in the context of aliphatic and aromatic alcohols.
Protection
It defines a protecting group as the masking agent to make the more reactive species inert to a given set of conditions. This concept is depicted via the illustration of liquid flow through different outlets in an assembly of pipes. The analogy helps to understand the role...
7.3K

You might also read

Related Articles

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

Sort by
Same author

Bulk Nanobubbles through Gas Supersaturation Originated by Hot and Cold Solvent Mixing.

Langmuir : the ACS journal of surfaces and colloids·2024
Same author

Understanding the Role of Surface Charge on Nanobubble Capillary Bridging during Particle-Particle Interaction.

Langmuir : the ACS journal of surfaces and colloids·2024
Same author

On Nanobubble Dynamics under an Oscillating Pressure Field during Salting-out Effects and Its DLVO Potential.

Langmuir : the ACS journal of surfaces and colloids·2023
Same author

Ion transport and current rectification in a charged conical nanopore filled with viscoelastic fluids.

Scientific reports·2022
Same author

Does salting-out effect nucleate nanobubbles in water: Spontaneous nucleation?

Ultrasonics sonochemistry·2021
Same author

Risperidone mono - therapy as prophylaxis in bipolar affective disorders.

Indian journal of psychiatry·2011

Related Experiment Video

Updated: Jul 6, 2025

Production of Membrane-Filtered Phase-Shift Decafluorobutane Nanodroplets from Preformed Microbubbles
07:10

Production of Membrane-Filtered Phase-Shift Decafluorobutane Nanodroplets from Preformed Microbubbles

Published on: March 23, 2021

2.8K

Do Nanobubbles Exist in Pure Alcohol?

Harsh Sharma1, Mohit Trivedi1, Neelkanth Nirmalkar1

  • 1Department of Chemical Engineering, Indian Institute of Technology Ropar, Rupnagar 140001, India.

Langmuir : the ACS Journal of Surfaces and Colloids
|January 4, 2024
PubMed
Summary
This summary is machine-generated.

Stable nanobubbles exist in pure alcohol, challenging previous ion-stabilization theories. This study generated and characterized these alcohol nanobubbles using advanced techniques, confirming their presence.

More Related Videos

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
08:19

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Published on: May 9, 2021

2.2K
Formulation and Acoustic Modulation of Optically Vaporized Perfluorocarbon Nanodroplets
07:44

Formulation and Acoustic Modulation of Optically Vaporized Perfluorocarbon Nanodroplets

Published on: July 16, 2021

2.1K

Related Experiment Videos

Last Updated: Jul 6, 2025

Production of Membrane-Filtered Phase-Shift Decafluorobutane Nanodroplets from Preformed Microbubbles
07:10

Production of Membrane-Filtered Phase-Shift Decafluorobutane Nanodroplets from Preformed Microbubbles

Published on: March 23, 2021

2.8K
Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
08:19

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Published on: May 9, 2021

2.2K
Formulation and Acoustic Modulation of Optically Vaporized Perfluorocarbon Nanodroplets
07:44

Formulation and Acoustic Modulation of Optically Vaporized Perfluorocarbon Nanodroplets

Published on: July 16, 2021

2.1K

Area of Science:

  • Physical Chemistry
  • Nanotechnology
  • Colloid Science

Background:

  • The existence of nanobubbles in pure water is debated, with ion stabilization proposed.
  • Nanobubbles in alcohol systems remain controversial due to the absence of ions.

Purpose of the Study:

  • To test the hypothesis that stable nanobubbles can exist in pure alcohols.
  • To characterize the properties of nanobubbles generated in pure alcohol.

Main Methods:

  • Generation of nanobubbles using ultrasound and oscillatory pressure fields.
  • Characterization via nanoparticle tracking analysis (NTA) for size and concentration.
  • Measurement of zeta potential using light scattering.
  • Estimation of refractive index (RI) using Mie scattering theory and electromagnetic wave simulation.

Main Results:

  • Nanobubbles were successfully generated and detected in pure alcohols.
  • The average refractive index of these nanobubbles was estimated at 1.17 ± 0.03.
  • Degassing decreased nanobubble concentration and increased their size.
  • The average zeta potential was measured at -5 ± 0.9 mV.
  • Mechanical stability models predicted nanobubble presence.

Conclusions:

  • Experimental and theoretical evidence supports the existence of nanobubbles in pure alcohol.
  • These nanobubbles exhibit marginal colloidal stability in higher-order alcohols.
  • Findings challenge the necessity of ions for nanobubble stabilization.