Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Colloids

Colloids

Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...

Cohesion

Cohesion

Cohesion is the attraction between molecules of the same type, such as water molecules. Water molecules have an overall neutral charge but are polar molecule. An oxygen atom in one water molecule has a partial negative charge that can bind to a hydrogen atom with a partial positive charge in a second water molecule, forming a hydrogen bond. Each water molecule can form up to four hydrogen bonds with other water molecules. Hydrogen bonds are responsible for water's cohesive nature.
On a surface,...

Micelles

Micelles

Micelle formation is an intricate process that hinges on the properties of amphiphilic or amphipathic molecules and the conditions of the system in which they are found. Amphiphilic molecules, which have both hydrophilic (water-attracting) and hydrophobic (water-repelling) parts, play a critical role in this process.In aqueous environments, these molecules arrange themselves such that their hydrophilic heads are turned towards the water phase, while their hydrophobic tails are oriented away...

Glycocalyx and its Functions

Glycocalyx and its Functions

The glycocalyx is a carbohydrate-rich, fuzzy-appearing layer on the outer surface of the cell membrane. It is highly hydrophilic, because of this it attracts large amounts of water to the cell's surface. This aids the cell's interaction with the watery environment and also helps it to obtain substances dissolved in the water. It is also important for cell identification, self/non-self determination, and embryonic development and is used in cell-to-cell attachments to form tissues.
Components of...

Surface Active Agents

Surface Active Agents

Surfactants, named for their behavior at interfaces, positively adsorb at the interfaces of two phases, reducing interfacial tension. Their versatility as emulsifiers, detergents, and foaming agents stems from this ability. Surfactants, often termed amphiphiles, share the property of amphipathy, with molecules having both hydrophilic and hydrophobic portions. The hydrophilic part is called the head, and the hydrophobic part, including an elongated alkyl substituent, forms the tail.Surfactants...

You might also read

Related Articles

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

Sort by

Same author

Cellular and Molecular Mechanism of Traditional Chinese Medicine on Ventricular Remodeling.

Frontiers in cardiovascular medicine·2021

Same author

Artificial Intelligence-Aided Multiple Tumor Detection Method Based on Immunohistochemistry-Enhanced Dark-Field Imaging.

Analytical chemistry·2021

Same author

Hemodynamic Mimic Shear Stress for Platelet Membrane Nanobubbles Preparation and Integrin α<sub>IIb</sub>β<sub>3</sub> Conformation Regulation.

Nano letters·2021

Same author

High-performance SOD mimetic enzyme Au@Ce for arresting cell cycle and proliferation of acute myeloid leukemia.

Bioactive materials·2021

Same author

Guanxin V protects against ventricular remodeling after acute myocardial infarction through the interaction of TGF-β1 and Vimentin.

Phytomedicine : international journal of phytotherapy and phytopharmacology·2021

Same author

Gauging surface charge distribution of live cell membrane by ionic current change using scanning ion conductance microscopy.

Nanoscale·2021

Search research articles

Related Experiment Video

Updated: Jun 23, 2026

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications

Published on: August 15, 2018

A cauliflower-like gold structure for superhydrophobicity.

Hong-Xuan Ren¹, Xing-Jiu Huang, Oktay Yarimaga

¹School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210098, China [corrected]

Journal of Colloid and Interface Science

|April 22, 2009

Summary

Researchers developed a novel two-step method to create cauliflower-like gold structures. This hierarchical gold material shows potential for advanced surface applications due to its unique properties.

More Related Videos

Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars

Rendering SiO₂/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars

Published on: February 11, 2020

Measuring the Interaction Force Between a Droplet and a Super-hydrophobic Substrate by the Optical Lever Method

Measuring the Interaction Force Between a Droplet and a Super-hydrophobic Substrate by the Optical Lever Method

Published on: June 14, 2019

Related Experiment Videos

Last Updated: Jun 23, 2026

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications

Published on: August 15, 2018

Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars

Rendering SiO₂/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars

Published on: February 11, 2020

Measuring the Interaction Force Between a Droplet and a Super-hydrophobic Substrate by the Optical Lever Method

Measuring the Interaction Force Between a Droplet and a Super-hydrophobic Substrate by the Optical Lever Method

Published on: June 14, 2019

Area of Science:

Materials Science
Nanotechnology
Surface Chemistry

Background:

Hierarchical nanostructures offer unique properties for various applications.
Controlling nanoparticle assembly is crucial for designing advanced materials.
Electrochemical methods provide precise control over material growth.

Purpose of the Study:

To develop a facile two-step synthesis for hierarchical cauliflower-like gold structures.
To characterize the morphology and properties of the synthesized gold structures.
To evaluate the surface properties after modification for potential applications.

Main Methods:

Utilizing random sequential adsorption (RSA) model for initial gold nanoparticle assembly.
Employing electrochemical growth for creating the hierarchical cauliflower structure.
Characterization using scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), and X-ray diffraction (XRD).
Surface modification with fluoroalkylsilane to alter surface properties.

Main Results:

Successfully synthesized cauliflower-like gold structures with hierarchical morphology.
Confirmed structure and composition using SEM, EDS, and XRD analyses.
Demonstrated high contact angle and low sliding angle on the modified surface, indicating superhydrophobicity.

Conclusions:

The two-step synthesis provides an effective route to hierarchical gold nanostructures.
The cauliflower-like gold structures exhibit tunable surface properties.
The modified surfaces show potential for applications requiring superhydrophobic properties.