Related Experiment Video
Updated: May 1, 2026

09:43
Synthesis of Immunotargeted Magneto-plasmonic Nanoclusters
Published on: August 22, 2014
15.3K
Biomimetic Plasmonic Nanophages by Head/Tail Self-Assembling: Gold Nanoparticle/Virus Interactions
Hazem Ahmed1, Hender Lopez2, Francesco Boselli3,4
1Nanobiointeractions & Nanodiagnostics Lab, Istituto Italiano di Tecnologia, Via Morego 30, Genova 16163, Italy.
ACS Nano
|July 31, 2024
Summary
This study combines gold nanoparticles (AuNPs) with bacteriophages to create advanced nanotools. These hybrid nanostructures show specific assembly and maintain targeting ability for biomedical applications.
Area of Science:
- Nanotechnology
- Biotechnology
- Materials Science
Background:
- Gold nanoparticles (AuNPs) offer plasmonic and catalytic properties for disease therapeutics and diagnostics.
- Bacteriophages are versatile biotechnological tools with engineered targeting capabilities, stability, and sustainable production.
Purpose of the Study:
- To investigate the interactions between gold nanoparticles (AuNPs) and filamentous M13 phages.
- To understand the self-assembly mechanisms of these hybrid nanostructures.
- To establish a platform for developing advanced phage-based nanotools.
Main Methods:
- Advanced characterization techniques combined with computational models.
- Analysis of differently sized AuNPs interacting with M13 phages.
- In silico simulations to elucidate assembly mechanisms and protein interactions.
Main Results:
- Observed specific head/tail "tadpole-like" configuration of AuNP-M13 complexes.
- AuNP size influenced interplay with M13 capsid proteins and hybrid structure tropism.
- Hybrid nanostructures remained biomimetic, avoiding biomolecular corona formation and retaining targeting ability.
Conclusions:
- Established a fundamental workflow for developing phage-based targeting nanotools.
- Demonstrated the potential of AuNP-phage hybrids for nanotechnology and biomedical applications.
- Highlighted the size-dependent tunability of hybrid nanostructures' tropism.
Related Concept Videos
What are Viruses?
109.5K
Overview
109.5K
Viral Structure
59.0K
Viruses are extraordinarily diverse in shape and size, but they all have several structural features in common. All viruses have a core that contains a DNA- or RNA-based genome. The core is surrounded by a protective coat of proteins called the capsid. The capsid is composed of subunits called capsomeres. The capsid and genome-containing core are together known as the nucleocapsid.
59.0K
Viral Recombination
22.3K
Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
22.3K
Protein Complex Assembly
12.5K
Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types. Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
Many viruses self-assemble into a fully functional unit using the infected host cell to...
12.5K
Intracellular Movement of Viruses and Bacteria
3.0K
Intracellular bacteria and viruses often comprise a group of highly infectious pathogens that can cause several diseases. Bacterial pathogens include those belonging to the genus Rickettsia responsible for conditions such as rocky mountain spotted fever and the Mediterranean spotted fever; Chlamydia, a genus responsible for a sexually transmitted disease; Coxiella burnetii, an agent responsible for Q fever. Viral pathogens include vaccinia—a poxvirus, and herpes simplex virus—a...
3.0K
Introduction to Virus
2.9K
Viruses are unique biological entities that blur the boundary between living and non-living systems. Although they lack cellular structure and metabolic processes, they can exhibit characteristics of life when infecting a host. Their defining feature is a nucleic acid core, composed of either DNA or RNA, encapsulated within a protein coat called a capsid. This simple structure allows them to invade host cells and use their machinery for replication efficiently.Viral Structure and...
2.9K

