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

Pigmentation

Pigmentation

The color of the skin is influenced by a number of pigments, including melanin, carotene, and hemoglobin. Recall that melanin is produced by cells called melanocytes, which are found scattered throughout the stratum basale of the epidermis. The melanin is transferred to the keratinocytes via melanosomes.
Melanin occurs in two primary forms: eumelanin that provides black and brown pigment and pheomelanin that provides red color. Dark-skinned individuals produce more melanin than those with pale...

You might also read

Related Articles

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

Sort by

Same author

A Three-Dimensional Covalent Organic Framework Enables Guest-Triggered Reversible Disorder-Order Structural Adaptation for SO<b><sub>2</sub></b> Adsorption.

Journal of the American Chemical Society·2026

Same author

Mapping the crystallization landscape of rare earth MOFs: a high-throughput investigation of structure, kinetics, and selectivity.

Chemical science·2026

Same author

Influence of Acid Modulators on MIL-53(Al) Formation on the Surface of Aluminum Nanocrystals.

Inorganic chemistry·2026

Same author

Reversible Addition-Fragmentation Chain-Transfer Aqueous Emulsion Polymerization Observed by Transmission Electron Microscopy.

Journal of the American Chemical Society·2026

Same author

Structure-Property Relationships for Moisture-Swing Direct Air Capture.

Environmental science & technology·2026

Same author

Prediction of rheological properties via structure elucidation of solvated hydrogels.

Nature materials·2026

Same journal

A Ni-Mediated Cross-Coupling Approach to Deuterated <sup>18</sup>F- Fluoromethylated (Hetero)arenes.

Journal of the American Chemical Society·2026

Same journal

Efficient Light-Driven CO<sub>2</sub> Capture and Reversible Release Enabled by Metastable Photoacid-Decorated Metal-Organic Frameworks.

Journal of the American Chemical Society·2026

Same journal

In Situ Raman Spectroscopy Reveals the Dynamic Evolution and Ethanol Dependence of SEI Structure in Li-Mediated N<sub>2</sub> Reduction Reaction.

Journal of the American Chemical Society·2026

Same journal

Solvent Esterification and Stoichiometric Control in Ambient-Grown FAPbI<sub>3</sub> Single-Crystal Solar Cells.

Journal of the American Chemical Society·2026

Same journal

Unlocking Azulene Functionalization via Strain-Induced Azulyne Intermediates.

Journal of the American Chemical Society·2026

Same journal

An Oxazine-Locked Covalent Organic Framework by a Tandem Pinner/Schiff Base Reaction for Hydrogen Peroxide Photosynthesis.

Journal of the American Chemical Society·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Nov 17, 2025

Quantification of Hypopigmentation Activity In Vitro

Quantification of Hypopigmentation Activity In Vitro

Published on: March 6, 2019

Synthetic Porous Melanin.

Zofia E Siwicka, Florencia A Son, Claudia Battistella

¹Center for Bio/Molecular Science & Engineering, US Naval Research Laboratory, Washington, D.C. 20375, United States.

Journal of the American Chemical Society

|February 18, 2021

Summary

This summary is machine-generated.

Researchers created a novel synthetic porous melanin with a high surface area for enhanced toxin adsorption. This material shows promise for capturing gases like carbon dioxide and ammonia, and organophosphate toxins.

More Related Videos

Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model

Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model

Published on: September 7, 2013

Laser Microdissection-Based Protocol for the LC-MS/MS Analysis of the Proteomic Profile of Neuromelanin Granules

Published on: December 16, 2021

Related Experiment Videos

Last Updated: Nov 17, 2025

Quantification of Hypopigmentation Activity In Vitro

Quantification of Hypopigmentation Activity In Vitro

Published on: March 6, 2019

Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model

Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model

Published on: September 7, 2013

Laser Microdissection-Based Protocol for the LC-MS/MS Analysis of the Proteomic Profile of Neuromelanin Granules

Published on: December 16, 2021

Area of Science:

Materials Science
Biomaterials Engineering
Environmental Science

Background:

Melanin, a natural pigment, protects against UV radiation and can adsorb toxins.
Natural melanin's toxin adsorption properties are observed in some organisms.
There is potential to enhance melanin's adsorbent capabilities through synthetic modifications.

Purpose of the Study:

To synthesize a novel porous melanin material.
To enhance the natural adsorbent properties of melanin and melanin-like materials.
To explore the gas and toxin adsorption capabilities of the synthetic material.

Main Methods:

Synthesis of porous polydopamine-based melanin using a mesoporous silica nanoparticle template.
Oxidative polymerization of dopamine.
Etching of the silica template to create porous structure.
Characterization of the synthetic porous melanin's physical properties and adsorption capabilities.

Main Results:

Successfully synthesized synthetic porous melanin (SPM) with a high surface area.
SPM demonstrated effective uptake of various gases, including selective CO2 capture over CH4.
The material showed high potential for ammonia capture and organophosphate toxin adsorption.

Conclusions:

Synthetic porous melanin exhibits enhanced adsorbent properties compared to natural melanin.
The developed material has significant potential for environmental applications, such as gas capture and toxin removal.
Further research may uncover similar porous melanin structures in biological systems.