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

The Anatomy of Chloroplasts01:08

The Anatomy of Chloroplasts

8.6K
Green algae and plants, including green stems and unripe fruit, harbor specialized organelles called chloroplasts to carry out photosynthesis. They coordinate both stages of photosynthesis — the light-dependent reactions and the light-independent reactions. The light-dependent reactions use sunlight to release oxygen and produce chemical energy in the form of ATP and NADPH, and the light-independent reactions capture CO2 and use ATP and NADPH to produce sugar.
Structure of...
8.6K
Assembly of Cytoskeletal Filaments01:18

Assembly of Cytoskeletal Filaments

28.0K
Cytoskeletal filaments are polymeric forms of smaller protein subunits. However, individual cytoskeletal filaments may easily disassemble or associate with other similar filaments to form rigid structures. Microfilaments, made of actin monomers, rely on actin-binding proteins to form bundles and create networks of individual actin filaments. Microtubules rely on microtubule-associated proteins (MAPs) to form sturdy cylindrical structures. However, the proteins involved in forming complex...
28.0K
Amyloid Fibrils03:03

Amyloid Fibrils

12.1K
Amyloid fibrils are aggregates of misfolded proteins.  Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils. 
Amyloid deposits were observed as early as 1639 in the liver and the spleen.   In 1854, Rudolph Virchow performed iodine staining,...
12.1K
Channel Rhodopsins01:11

Channel Rhodopsins

3.3K
Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
3.3K
Anatomy of Chloroplasts01:07

Anatomy of Chloroplasts

120.5K
Green algae and plants, including green stems and unripe fruit, harbor chloroplasts—the vital organelles where photosynthesis takes place. In plants, the highest density of chloroplasts is found in the mesophyll cells of leaves.
120.5K
Studying the Cytoskeleton01:17

Studying the Cytoskeleton

10.3K
The cytoskeletal architecture can be studied using different microscopic and biochemical techniques. Electron microscopy was instrumental in discovering the cytoskeletal architecture around the 1960s, which allowed obtaining structural information at a high-resolution level. However, the sample preparation procedure often limits this ability in biological samples. Several protocols have been developed over the years to optimize sample preparation. In one of the protocols known as rotary...
10.3K

You might also read

Related Articles

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

Sort by
Same author

Establishing communities of practice in undergraduate science classrooms.

Journal of microbiology & biology education·2026
Same author

Uncovering supramolecular chirality codes for the design of tunable biomaterials.

Nature communications·2024
Same author

Engineering Synthetic Electron Transfer Chains from Metallopeptide Membranes.

Inorganic chemistry·2023
Same author

Dynamic exchange controls the assembly structure of nucleic-acid-peptide chimeras.

Soft matter·2023
Same author

Polyanion order controls liquid-to-solid phase transition in peptide/nucleic acid co-assembly.

Frontiers in molecular biosciences·2022
Same author

Physiology and whole-plant carbon partitioning during stem sugar accumulation in sweet dwarf sorghum.

Planta·2021

Related Experiment Video

Updated: Feb 26, 2026

Isolation and Fluorescence Imaging for Single-particle Reconstruction of Chlamydomonas Centrioles
10:38

Isolation and Fluorescence Imaging for Single-particle Reconstruction of Chlamydomonas Centrioles

Published on: September 21, 2018

10.2K

Amyloid scaffolds as alternative chlorosomes.

Rolando F Rengifo1, Noel X Li, Anthony Sementilli

  • 1Emory University, Departments of Biology and Chemistry, 1515 Dickey Dr. NE, Atlanta, GA 30322, USA. dlynn2@emory.edu.

Organic & Biomolecular Chemistry
|July 18, 2017
PubMed
Summary

Researchers emulated natural self-assembling systems to create novel photoredox materials. These materials utilize amyloid peptide scaffolds to organize light-harvesting molecules and store energy, advancing nanobiotechnology applications.

More Related Videos

Detecting and Characterizing Protein Self-Assembly In Vivo by Flow Cytometry
05:58

Detecting and Characterizing Protein Self-Assembly In Vivo by Flow Cytometry

Published on: July 17, 2019

11.5K
Photobleaching Enables Super-resolution Imaging of the FtsZ Ring in the Cyanobacterium Prochlorococcus
10:09

Photobleaching Enables Super-resolution Imaging of the FtsZ Ring in the Cyanobacterium Prochlorococcus

Published on: November 6, 2018

6.9K

Related Experiment Videos

Last Updated: Feb 26, 2026

Isolation and Fluorescence Imaging for Single-particle Reconstruction of Chlamydomonas Centrioles
10:38

Isolation and Fluorescence Imaging for Single-particle Reconstruction of Chlamydomonas Centrioles

Published on: September 21, 2018

10.2K
Detecting and Characterizing Protein Self-Assembly In Vivo by Flow Cytometry
05:58

Detecting and Characterizing Protein Self-Assembly In Vivo by Flow Cytometry

Published on: July 17, 2019

11.5K
Photobleaching Enables Super-resolution Imaging of the FtsZ Ring in the Cyanobacterium Prochlorococcus
10:09

Photobleaching Enables Super-resolution Imaging of the FtsZ Ring in the Cyanobacterium Prochlorococcus

Published on: November 6, 2018

6.9K

Area of Science:

  • Biomimetic Nanotechnology
  • Photoredox Materials Science
  • Self-Assembly

Background:

  • Living systems exhibit complex self-organizing frameworks with inherent functional capabilities.
  • Understanding these natural assembly codes is key to advancing nanobiotechnology.
  • Chlorosome antenna arrays serve as a model for efficient light harvesting and energy transfer.

Purpose of the Study:

  • To emulate and extend the self-assembling features of chlorosome antenna arrays.
  • To develop novel cell-compatible photoredox materials.
  • To explore the use of amyloid peptide scaffolds for organizing chromophores and storing energy.

Main Methods:

  • Reviewing existing research on amyloid peptide scaffolds.
  • Analyzing the self-assembling architecture of chlorosome antenna arrays.
  • Investigating the organization of light-harvesting chromophores within peptide scaffolds.
  • Examining the incorporation of redox-active metal ions for energy storage.

Main Results:

  • Amyloid peptide scaffolds can effectively organize light-harvesting chromophores.
  • Peptide bilayer symmetry breaking facilitates directional energy and electron transfer.
  • High-density incorporation of redox-active metal ions is achievable for energy storage.

Conclusions:

  • Emulation of natural self-assembly offers a pathway to advanced photoredox materials.
  • Amyloid peptide scaffolds provide a versatile platform for designing functional nanomaterials.
  • This approach holds promise for extending the capabilities of nanobiotechnology.