Related Experiment Video
Updated: Feb 10, 2026
06:28
Self-Assembly of Hybrid Lipid Membranes Doped with Hydrophobic Organic Molecules at the Water/Air Interface
Published on: May 1, 2020
4.0K
Thionine Self-Assembled Structures on Graphene: Formation, Organization, and Doping.
Thiago A S L de Sousa1, Thales F D Fernandes1, Matheus J S Matos2
1Departamento de Física, ICEx , Universidade Federal de Minas Gerais , Avenida Presidente Antônio Carlos 6627 , Belo Horizonte CEP 31270-901 , Brazil.
Langmuir : the ACS Journal of Surfaces and Colloids
|May 25, 2018
Summary
Thionine molecules self-assemble into organized structures on graphene, creating a hybrid material. This interaction strongly dopes graphene, offering potential for new 2D material devices.
Area of Science:
- Materials Science
- Surface Science
- Nanotechnology
Background:
- Organic molecule interactions with 2D materials form hybrid systems for research and applications.
- Self-assembly of molecules on surfaces is key to understanding material properties.
Purpose of the Study:
- To investigate the self-assembly of thionine on graphene and its impact on graphene's properties.
- To explore the formation of ordered molecular structures and their electronic effects.
Main Methods:
- Atomic force microscopy (AFM) for structural analysis.
- Electrical transport measurements to assess doping effects.
- Raman spectroscopy for material characterization.
- First-principles calculations for theoretical insights.
Main Results:
- Observed time-dependent evolution of thionine self-assembled structures on graphene.
- Achieved highly oriented molecular assembly aligned with graphene symmetry.
- Demonstrated a significant n-type doping effect on graphene induced by thionine.
Conclusions:
- Thionine and graphene form well-organized hybrid structures with tunable electronic properties.
- The study provides insights into molecular self-assembly on 2D materials.
- Results suggest potential for designing tailored 2D material hybrid devices.
Related Concept Videos
01:32Assembly of Complex Microtubule Structures
2.5K
Complex microtubule structures are present in resting cells and in dividing cells. In resting cells, they are responsible for maintaining the cellular architecture, tracks for intracellular transport, positioning of organelles, assembly of cilia and flagella. They mediate the bipolar spindle assembly for chromosomal segregation and positioning of the cell division plate in dividing cells. The formation of microtubule complex structures depends on the cell type, cell stage, and cell function.
2.5K
01:13Structure and Organization of Smooth Muscles
8.8K
Smooth muscle tissue is a type of muscle tissue that can be found lining various vital organs in the human body, including the lungs, blood vessels, digestive tract, and respiratory tract. This type of tissue is responsible for regulating the movements of these organs, playing crucial roles in the functioning of various systems, including the vascular, digestive, respiratory, and urinary systems.
Structure of smooth muscle cell
Smooth muscle cells are spindle-shaped with tapering ends and a...
Structure of smooth muscle cell
Smooth muscle cells are spindle-shaped with tapering ends and a...
8.8K
01:28Prokaryotic Gene Structure and Organization
2.3K
Prokaryotic genomes exhibit a streamlined organization of coding and non-coding regions essential for gene expression and protein synthesis. While coding regions contain the genetic instructions for proteins or functional RNAs, non-coding regions regulate the precise transcription and translation of these genes.Coding Regions: Proteins and RNAsThe primary coding regions, known as structural genes, include sequences transcribed into messenger RNA (mRNA) and ultimately translated into...
2.3K
01:18Structural Organization of the Human Body: An Overview
29.8K
It is convenient to consider the body's structures in terms of fundamental levels of organization that increase in complexity: subatomic particles, atoms, molecules, organelles, cells, tissues, organs, organ systems, and organisms.
To study the chemical level of organization, scientists consider the simplest building blocks of matter: subatomic particles, atoms, and molecules. All matter in the universe is composed of one or more unique pure substances called elements, familiar examples of...
To study the chemical level of organization, scientists consider the simplest building blocks of matter: subatomic particles, atoms, and molecules. All matter in the universe is composed of one or more unique pure substances called elements, familiar examples of...
29.8K
01:56Structural Protein Function
30.0K
Structural proteins are a category of proteins responsible for functions ranging from cell shape and movement to providing support to major structures such as bones, cartilage, hair, and muscles. This group includes proteins such as collagen, actin, myosin, and keratin.
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to...
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to...
30.0K
02:10Additional Subnuclear Structures
5.4K
The eukaryotic nucleus is a double membrane-bound organelle that contains nearly all of the cell’s genetic material in the form of chromosomes. It is rightly called the “brain” of the cell as it shoulders the responsibility of responding to various physiological processes, stress, altered metabolic conditions, and other cellular signals.
The nucleus contains many membrane-less subnuclear organelles or nuclear bodies, such as nucleoli, Cajal bodies, speckles,...
The nucleus contains many membrane-less subnuclear organelles or nuclear bodies, such as nucleoli, Cajal bodies, speckles,...
5.4K