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

Controls in Experiments01:13

Controls in Experiments

13.3K
When conducting an experiment, it is crucial to have control to reduce bias and accurately measure the dependent variables. It also marks the results more reliable. Controls are elements in an experiment that have the same characteristics as the treatment groups but are not affected by the independent variable. By sorting these data into control and experimental conditions, the relationship between the dependent and independent variables can be drawn. A randomized experiment always includes a...
13.3K
What is an Experiment?01:12

What is an Experiment?

15.7K
An experiment is a planned activity carried out under controlled conditions. The purpose of an experiment is to investigate the relationship between two variables. When one variable causes change in another, we call the first variable the explanatory or independent variable. The affected variable is called the response or dependent variable. In a randomized experiment, the researcher manipulates values of the explanatory variable and measures the resulting changes in the response variable. The...
15.7K
Experimental Designs01:16

Experimental Designs

15.8K
An experimental design is a systematic process that allows researchers to evaluate the relationship between dependent and independent variables. There are three widely used types of experimental design - pre-experimental design, true experimental design, and quasi-experimental design. In pre-experimental design, the researcher compares the data before and after some interventions or treatments. The true-experimental design has more than one purposefully created group, a commonly measured...
15.8K
Data Collection by Experiments01:13

Data Collection by Experiments

25.5K
Data collection is a systematic method of obtaining, observing, measuring, and analyzing accurate information. An experimental study is a standard method of data collection that involves the manipulation of the samples by applying some form of treatment prior to data collection. It refers to manipulating one variable to determine its changes on another variable. The sample subjected to treatment is known as “experimental units.”
An example of the experimental method is a public...
25.5K
Bioequivalence Experimental Study Designs: Repeated Measures, Cross-Over, Carry-Over, and Latin Square Designs01:15

Bioequivalence Experimental Study Designs: Repeated Measures, Cross-Over, Carry-Over, and Latin Square Designs

6
Body:Bioequivalence experimental study designs play a pivotal role in testing the effectiveness of various treatments. Key among these are the repeated measures, cross-over, carry-over, and Latin square designs. In the repeated measures design, each subject receives all treatments, allowing for temporal comparisons. This type of design is useful in reducing variability but requires careful planning to avoid bias.The cross-over design, an economical method, involves sequential administration of...
6
Naturalistic Observations02:30

Naturalistic Observations

16.5K
If you want to understand how behavior occurs, one of the best ways to gain information is to simply observe the behavior in its natural context. However, people might change their behavior in unexpected ways if they know they are being observed. How do researchers obtain accurate information when people tend to hide their natural behavior? As an example, imagine that your professor asks everyone in your class to raise their hand if they always wash their hands after using the restroom. Chances...
16.5K

You might also read

Related Articles

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

Sort by
Same author

Solvent-Encoded Intrinsic Emission and Self-Assembly of Coiled-Coil-Based Foldamers.

The journal of physical chemistry. B·2026
Same author

Synthetic deformylated α-helical PSMα3 as a selective inhibitor of human amyloid aggregation.

Scientific reports·2025
Same author

Experimental methods for studying amyloid cross-interactions.

Protein science : a publication of the Protein Society·2025
Same author

Construction and cytotoxicity evaluation of peptide nanocarriers based on coiled-coil structures with a cyclic β-amino acid at the knob-into-hole interaction site.

Journal of materials chemistry. B·2025
Same author

Environmental sensitivity of amyloidogenic motifs in fungal NOD-like receptor-mediated immunity: Molecular and structural insights into amyloid assembly.

International journal of biological macromolecules·2025
Same author

Biophysical and molecular interactions of enantiomeric piperonal-derived trans β-aryl-δ-iodo-γ-lactones with cancer cell membranes, protein and DNA: Implications for anticancer activity.

International journal of biological macromolecules·2025
Same journal

Nanotechnology-Stem Cell Strategies in 3D Glioblastoma Organoid: Targeting Glioma Stem Cells Within a Complex Tumor Microenvironment.

Methods in molecular biology (Clifton, N.J.)·2026
Same journal

Mapping the 3D Chromosome Organization of a Biosynthetic Gene Cluster by Capture Hi-C (CHi-C).

Methods in molecular biology (Clifton, N.J.)·2026
Same journal

Mapping the 3D Chromosome Organization of Streptomyces by Hi-C.

Methods in molecular biology (Clifton, N.J.)·2026
Same journal

CUT&Tag Epigenomic Profiling of Biosynthetic Gene Clusters in Arabidopsis thaliana.

Methods in molecular biology (Clifton, N.J.)·2026
Same journal

Rhizobium rhizogenes-Mediated Hairy Root Transformation Protocol for Lotus japonicus and Other Legumes.

Methods in molecular biology (Clifton, N.J.)·2026
Same journal

Characterization of Bioactive Saponins from Sea Cucumbers.

Methods in molecular biology (Clifton, N.J.)·2026
See all related articles

Related Experiment Video

Updated: Oct 3, 2025

A Within-Subject Experimental Design using an Object Location Task in Rats
09:28

A Within-Subject Experimental Design using an Object Location Task in Rats

Published on: May 6, 2021

4.7K

Challenges in Experimental Methods.

Marlena E Gąsior-Głogowska1, Natalia Szulc2, Monika Szefczyk3

  • 1Department of Biomedical Engineering, Wroclaw University of Science and Technology, Wrocław, Poland. marlena.gasior-glogowska@pwr.erdu.pl.

Methods in Molecular Biology (Clifton, N.J.)
|February 15, 2022
PubMed
Summary
This summary is machine-generated.

Studying amyloid proteins presents challenges due to aggregation and insolubility. Bioinformatics methods offer a solution for analyzing amyloid peptides when experimental results are ambiguous.

Keywords:
FibersMicroscopyOligomersSpectroscopyStainingStructural analysisSynthesis

More Related Videos

Using Enclosed Y-Mazes to Assess Chemosensory Behavior in Reptiles
06:15

Using Enclosed Y-Mazes to Assess Chemosensory Behavior in Reptiles

Published on: April 7, 2021

5.8K
Methods for Presenting Real-world Objects Under Controlled Laboratory Conditions
06:54

Methods for Presenting Real-world Objects Under Controlled Laboratory Conditions

Published on: June 21, 2019

6.0K

Related Experiment Videos

Last Updated: Oct 3, 2025

A Within-Subject Experimental Design using an Object Location Task in Rats
09:28

A Within-Subject Experimental Design using an Object Location Task in Rats

Published on: May 6, 2021

4.7K
Using Enclosed Y-Mazes to Assess Chemosensory Behavior in Reptiles
06:15

Using Enclosed Y-Mazes to Assess Chemosensory Behavior in Reptiles

Published on: April 7, 2021

5.8K
Methods for Presenting Real-world Objects Under Controlled Laboratory Conditions
06:54

Methods for Presenting Real-world Objects Under Controlled Laboratory Conditions

Published on: June 21, 2019

6.0K

Area of Science:

  • Biochemistry
  • Structural Biology
  • Biophysics

Background:

  • Amyloid studies face experimental challenges.
  • Diverse methods exist for protein and amyloid investigation.

Purpose of the Study:

  • To review experimental methods for amyloid characterization.
  • To highlight challenges and the growing role of bioinformatics in amyloid research.

Main Methods:

  • Basic staining techniques for fiber visualization.
  • Advanced methods like Atomic Force Microscopy-Infrared Spectroscopy (AFM-IR) for nanoscale characterization.
  • Bioinformatics approaches for data analysis.

Main Results:

  • Method selection depends on experimental goals (aggregation, oligomer vs. fiber distinction, kinetics).
  • Insolubility, rapid aggregation, and peptide purity are common limitations.
  • Experimental results can be ambiguous and lead to misclassification.

Conclusions:

  • Experimental amyloid research is complex and often yields ambiguous results.
  • Bioinformatics tools are increasingly vital for overcoming experimental limitations and improving accuracy in amyloid peptide analysis.