Sunday, July 27, 2025
LBNN
  • Business
  • Markets
  • Politics
  • Crypto
  • Finance
  • Energy
  • Technology
  • Taxes
  • Creator Economy
  • Wealth Management
  • Documentaries
No Result
View All Result
LBNN

Ice-free preservation method holds promise to protect reefs

Simon Osuji by Simon Osuji
August 26, 2023
in Technology
0
Ice-free preservation method holds promise to protect reefs
0
SHARES
0
VIEWS
Share on FacebookShare on Twitter

Ice-free preservation method holds promise to protect reefs
Facilitating and verifying an isochoric vitrification process. a Custom-designed isochoric chamber rated for 400 MPa/−200 °C. The chamber body is built of aluminum 7075-T651 for its combination of excellent thermal and mechanical properties, and the threaded adapter is built of 316 stainless steel. The adapter possesses a significantly lower temperature coefficient of thermal expansion compared to Al-7075, thus producing an advantageous thermal shrink-seal upon cooling. b Pressure–temperature–time (PTT) trace for successful vitrification, as indicated by the absence of a jump in pressure (n = 10 independent trials). c, d PTT traces for slower cooling (c) and warming (d) rates, each of which produce detectable ice nucleation and the according pressurization (n = 10 independent trials, each). Each vitrification trial reflected in (b–d) employed a fresh sample of CVS1 solution. Solid lines in (b–d) represent the mean PTT trace across trials, and shaded error bands represent the full range of results. Source data for (b–d) are provided as a Source data file. Credit: Nature Communications (2023). DOI: 10.1038/s41467-023-40500-w

As ocean temperatures continue to rise, coral reefs face increasing threats as ecosystem damage has accelerated in recent decades. The ability to preserve and revive biodiverse coral samples has become an essential priority for the health and future of the world’s oceans.

Related posts

Global gas flaring hits highest level since 2007 – EnviroNews

Global gas flaring hits highest level since 2007 – EnviroNews

July 27, 2025
Rent upsurge pushing Abuja residents to brink of displacement – EnviroNews

Rent upsurge pushing Abuja residents to brink of displacement – EnviroNews

July 27, 2025

An interdisciplinary team of researchers demonstrated that live coral can be preserved through a new technique called isochoric vitrification. This process takes selected coral fragments through the stages of cryopreservation, then revival. Critically, the process allows the coral to be cooled rapidly to a temperature of -196 degrees Celsius—nearly -321 degrees Fahrenheit—without forming ice, which is lethal to coral and most biological matter.

“This work is an interdisciplinary collaboration that unifies the experts in coral preservation with experts in cryothermodynamics,” said Dr. Matthew Powell-Palm, lead author on this project. “It’s this collaborative marriage of fundamental thermodynamic advancements and fundamental advancements in coral biology and husbandry that have enabled our breakthrough success in whole coral cryopreservation.”

The research team’s findings were published in Nature Communications. Alongside Powell-Palm, collaborators included Dr. Mary Hagedorn and Dr. E. Michael Henley of the Smithsonian’s National Zoo and Conservation Biology Institute (NZCBI) and Dr. Boris Rubinsky of the University of California, Berkeley.

Powell-Palm, an assistant professor in the J. Mike Walker ’66 Department of Mechanical Engineering at Texas A&M University, and Rubinsky led the work to develop the isochoric vitrification technique. Hagedorn and Henley took the technique into the real world, applying it to preserve coral fragments at the Hawaii Institute of Marine Biology.

Coral reefs are among the planet’s most diverse ecosystems and are vital in ensuring food security, protecting coastlines and serving as home to nearly a quarter of the ocean’s lifeforms. Previous methods of cryopreservation involved collecting coral reproductive matter while the coral reproduced, which was limited to a few days out of the year and in often difficult-to-access locations. Developing a technique not limited by the coral’s reproductive schedule makes it possible to extract and preserve coral throughout the year at any time.

To preserve the coral fragment without forming ice, researchers first bleached the sample—a process in which a symbiotic photosynthetic algae is removed from the coral. While in nature, bleaching is typically associated with overstress in coral and leads to starvation in the organism. However, it was discovered that by applying isochoric vitrification without bleaching, the algae created ice pockets.

Once removed, the researchers could preserve the bleached coral fragment in a glassy state by introducing it to a chemical solution and storing it inside a specialized aluminum container which was then rapidly cooled using liquid nitrogen. The coral was then warmed and revived by reintroducing filtered seawater gradually over 20 minutes.

While the technique is scientifically sophisticated, Powell-Palm said one of its greatest strengths is the simplicity of the technology required to apply it.

“Compared to other emergent vitrification techniques—which frequently require lasers, electromagnetic implements or other high-tech laboratory equipment—our isochoric vitrification approach is exceedingly fieldable,” Powell-Palm said.

“It requires no moving parts or electronics, and the protocol can be implemented by a field technician with no background in thermodynamics. This is essential to the practicality of any conservation technique because when this is deployed in real marine field stations, the high-tech lab infrastructure common to many laboratories will not be available. From a purely technological perspective, the technique is simple, rugged and ready for the field.”

Looking forward, the researchers are working to reduce the stress placed on coral throughout the process. While the researchers successfully preserved and revived one species of coral, the life span observed was only up to 24 hours post-thaw. By reducing the overall stress placed on the coral, researchers hope to achieve long-term survival for subjects of the vitrification process and rapid deployment of the technique into real-world conservation efforts.

“Everyone benefits from the health of the world’s oceans, be it by eating fish, living in a coastal community that benefits from reef-driven tourism, or simply enjoying a walk on the beach,” Powell-Palm said. “Coral reefs are essential to the baseline health of our oceans, and cryo-conservation of endangered coral species can help to ensure that these invaluable and marvelous organisms do not go extinct.”

More information:
Matthew J. Powell-Palm et al, Cryopreservation and revival of Hawaiian stony corals using isochoric vitrification, Nature Communications (2023). DOI: 10.1038/s41467-023-40500-w

Provided by
Texas A&M University College of Engineering

Citation:
Ice-free preservation method holds promise to protect reefs (2023, August 23)
retrieved 26 August 2023
from https://phys.org/news/2023-08-ice-free-method-reefs.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

Source link

Previous Post

Challenges and Opportunities of Digital Transformation in Singapore

Next Post

CBP officers seize over $910K in cocaine at World Trade Bridge

Next Post
CBP officers seize over $910K in cocaine at World Trade Bridge

CBP officers seize over $910K in cocaine at World Trade Bridge

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

RECOMMENDED NEWS

Inngest raises $6.1M as it expands its workflow engine

Inngest raises $6.1M as it expands its workflow engine

1 year ago
GABA Receptors Unveiled as Potential Antidepressant Targets

GABA Receptors Unveiled as Potential Antidepressant Targets

2 years ago
TotalEnergies edges closer to restarting $20 billion gas project in Mozambique

TotalEnergies edges closer to restarting $20 billion gas project in Mozambique

6 days ago
OpenAI enhances AI safety with new red teaming methods

OpenAI enhances AI safety with new red teaming methods

8 months ago

POPULAR NEWS

  • Ghana to build three oil refineries, five petrochemical plants in energy sector overhaul

    Ghana to build three oil refineries, five petrochemical plants in energy sector overhaul

    0 shares
    Share 0 Tweet 0
  • The world’s top 10 most valuable car brands in 2025

    0 shares
    Share 0 Tweet 0
  • When Will SHIB Reach $1? Here’s What ChatGPT Says

    0 shares
    Share 0 Tweet 0
  • Top 10 African countries with the highest GDP per capita in 2025

    0 shares
    Share 0 Tweet 0
  • Global ranking of Top 5 smartphone brands in Q3, 2024

    0 shares
    Share 0 Tweet 0
  • Privacy Policy
  • Contact

© 2023 LBNN - All rights reserved.

No Result
View All Result
  • Home
  • Business
  • Politics
  • Markets
  • Crypto
  • Economics
    • Manufacturing
    • Real Estate
    • Infrastructure
  • Finance
  • Energy
  • Creator Economy
  • Wealth Management
  • Taxes
  • Telecoms
  • Military & Defense
  • Careers
  • Technology
  • Artificial Intelligence
  • Investigative journalism
  • Art & Culture
  • Documentaries
  • Quizzes
    • Enneagram quiz
  • Newsletters
    • LBNN Newsletter
    • Divergent Capitalist

© 2023 LBNN - All rights reserved.