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

Catalytically Perfect Enzymes01:07

Catalytically Perfect Enzymes

4.0K
The theory of catalytically perfect enzymes was first proposed by W.J. Albery and J. R. Knowles in 1976. These enzymes catalyze biochemical reactions at high-speed. Their catalytic efficiency values range from 108-109 M-1s-1. These enzymes are also called 'diffusion-controlled' as the only rate-limiting step in the catalysis is that of the substrate diffusion into the active site. Examples include triose phosphate isomerase, fumarase, and superoxide dismutase.
 
Most enzymes...
4.0K
Catalysis02:50

Catalysis

27.0K
The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
27.0K
Gas Chromatography: Types of Detectors-II01:19

Gas Chromatography: Types of Detectors-II

418
In gas chromatography, different detectors are employed to meet specific analytical needs. These detectors are often categorized based on their detection mechanisms and the types of compounds they are best suited to analyze. Thermal Conductivity Detectors (TCD), Flame Ionization Detectors (FID), and Electron Capture Detectors (ECD) represent common categories, each with unique operating principles and applications. However, beyond these, several other detectors are designed for more specialized...
418

You might also read

Related Articles

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

Sort by
Same author

Impact of a Single Hemodialysis Session on Oxidative Stress-Inducing and Oxidative Damage Biomarkers in End-Stage Kidney Disease Patients.

Current issues in molecular biology·2026
Same author

Mechanistic basis of teichoic acid transport by a gatekeeper flippase.

Nature communications·2026
Same author

Nested TMAPs to Visualize Billions of Molecules.

Journal of chemical information and modeling·2026
Same author

Assigning the stereochemistry of natural products by machine learning.

Journal of cheminformatics·2026
Same author

Correction to "Exploring Simple Drug Scaffolds from the GDB Chemical Space Reveals a Chiral Bicyclic Azepane with Potent Neuropharmacology".

Journal of medicinal chemistry·2026
Same author

Structures of ALG3/9/12 reveal the assembly logic of the N-glycan oligomannose core.

Nature chemical biology·2026

Related Experiment Video

Updated: Jul 20, 2025

Fabrication and Testing of Catalytic Aerogels Prepared Via Rapid Supercritical Extraction
09:28

Fabrication and Testing of Catalytic Aerogels Prepared Via Rapid Supercritical Extraction

Published on: August 31, 2018

7.3K

Organic Catalytic Activity as a Method for Agnostic Life Detection.

Christos D Georgiou1, Christopher McKay2, Jean-Louis Reymond3

  • 1Department of Biology, University of Patras, Patras, Greece.

Astrobiology
|July 31, 2023
PubMed
Summary
This summary is machine-generated.

Catalytic activity offers a sensitive, agnostic approach to detecting extraterrestrial life. This method uses hydrolytic enzymes to identify life signs, even in non-living samples, with high amplification.

Keywords:
CatalysisEnceladusEuropaLife detectionMars

More Related Videos

Experimental Protocol for Detecting Cyanobacteria in Liquid and Solid Samples with an Antibody Microarray Chip
10:57

Experimental Protocol for Detecting Cyanobacteria in Liquid and Solid Samples with an Antibody Microarray Chip

Published on: February 7, 2017

9.2K
Expression and Purification of Nuclease-Free Oxygen Scavenger Protocatechuate 3,4-Dioxygenase
10:14

Expression and Purification of Nuclease-Free Oxygen Scavenger Protocatechuate 3,4-Dioxygenase

Published on: November 8, 2019

6.4K

Related Experiment Videos

Last Updated: Jul 20, 2025

Fabrication and Testing of Catalytic Aerogels Prepared Via Rapid Supercritical Extraction
09:28

Fabrication and Testing of Catalytic Aerogels Prepared Via Rapid Supercritical Extraction

Published on: August 31, 2018

7.3K
Experimental Protocol for Detecting Cyanobacteria in Liquid and Solid Samples with an Antibody Microarray Chip
10:57

Experimental Protocol for Detecting Cyanobacteria in Liquid and Solid Samples with an Antibody Microarray Chip

Published on: February 7, 2017

9.2K
Expression and Purification of Nuclease-Free Oxygen Scavenger Protocatechuate 3,4-Dioxygenase
10:14

Expression and Purification of Nuclease-Free Oxygen Scavenger Protocatechuate 3,4-Dioxygenase

Published on: November 8, 2019

6.4K

Area of Science:

  • Astrobiology
  • Biochemistry
  • Analytical Chemistry

Background:

  • Ideal life detection requires high sensitivity and insensitivity to abiotic processes.
  • Detecting life with alternate molecular structures is a significant challenge.
  • Catalysis presents a promising agnostic method for life detection.

Purpose of the Study:

  • To propose catalytic activity as the basis for a nearly ideal life detection instrument.
  • To develop a hydrolytic catalysis detection instrument for extraterrestrial organic material.
  • To assess the potential for detecting chirality in unknown life forms.

Main Methods:

  • Utilizing chromogenic assay-based detection of hydrolytic catalytic activities.
  • Designing artificial substrates releasing chromogenic or fluorescent groups upon hydrolysis.
  • Employing D- and L-enantiomers of substrates to probe for chirality.

Main Results:

  • Catalysis provides significant amplification, enabling detection of minute catalyst amounts.
  • The method is not dependent on culturing or growing alien life.
  • Catalytic activity can persist in dead biomass, aiding detection.

Conclusions:

  • Hydrolytic catalysis is a robust and sensitive method for agnostic life detection.
  • The proposed instrument can detect extraterrestrial life and its chirality.
  • Optofluidic chip technology can facilitate sensitive measurements of catalytic activity.