Friday, August 15, 2025
Science
No Result
View All Result
  • Login
  • HOME
  • SCIENCE NEWS
  • CONTACT US
  • HOME
  • SCIENCE NEWS
  • CONTACT US
No Result
View All Result
Scienmag
No Result
View All Result
Home Science News Chemistry

New study shows how organic molecules impact gold nanoparticles

July 17, 2024
in Chemistry
Reading Time: 3 mins read
0
Understanding how nanoparticles interact with organic molecules
70
SHARES
640
VIEWS
Share on FacebookShare on Twitter
ADVERTISEMENT
ADVERTISEMENT

A new study shows how organic molecules greatly influence the redox potential of gold nanoparticles, with differences up to 71 mV. Using experiments and computer simulations, the study highlights the important role of capping agents in controlling the nanoparticles’ electrochemical properties and also identifies how kinetic effects impact these interactions. These findings have practical uses in areas like nanoparticle dispersion, monitoring ligand exchange, and advancements in fields such as catalysis, electronics, and drug delivery, showing the potential for customizing nanoparticle behavior for specific applications.

Understanding how nanoparticles interact with organic molecules

Credit: Din Zelikovich (PhD student), Pavel Savchenko (MSc student) and Hadassah Elgavi Sinai (Senior Researcher).

A new study shows how organic molecules greatly influence the redox potential of gold nanoparticles, with differences up to 71 mV. Using experiments and computer simulations, the study highlights the important role of capping agents in controlling the nanoparticles’ electrochemical properties and also identifies how kinetic effects impact these interactions. These findings have practical uses in areas like nanoparticle dispersion, monitoring ligand exchange, and advancements in fields such as catalysis, electronics, and drug delivery, showing the potential for customizing nanoparticle behavior for specific applications.

 

A recent study led by Prof. Daniel Mandler with Prof. Roi Baer and Dr. Hadassah Elgavi Sinai and a team at Hebrew University, published in the Journal of the American Chemical Society, reveals how organic molecules affect the behavior of tiny gold particles absorbed on surfaces. Their research deepens our understanding of how these nanoparticles absorbed on surfaces interact with their surroundings, offering important insights for various uses. The research was conducted jointly by PhD student Din Zelikovich, who carried out very careful experiments and MSc student Pavel Savchenko, who conducted the theoretical calculations.

The study found that different molecules, like 2- and 4-mercaptobenzoic acid, can cause gold nanoparticles to have significantly different electrical properties, with differences up to 71 Mv (millivolts). This highlights how crucial these molecules are in determining how nanoparticles behave.

Using advanced computer simulations and experiments, the collaboration between the experimental and theoretical teams showed that some molecules stick to gold surfaces in predictable ways, matching what they saw experimentally. However, they also found that the kinetics, namely, the rate the nanoparticles are oxidized adds more complexity to how they interact.

For instance, they discovered that gold nanoparticles stabilized by 4-mercaptobenzoic acid reacted twice as quickly as those with citrate. This finding, backed by scientific theories, shows just how much the right molecule can change how these nanoparticles act.

Prof. Daniel Mandler emphasized the significance of the research, stating, “Our study demonstrates the profound impact that capping agents have on the redox properties of nanoparticles. This understanding allows us to fine-tune nanoparticle behavior for specific applications, potentially leading to significant impact in fields ranging from catalysis to drug delivery.”

As the scientific community continues to explore the intricate world of nanoparticles, this research contributes valuable knowledge to the field of nanoparticle chemistry. By shedding light on the complex interactions between nanoparticles and their capping agents, this study opens new avenues for designing and optimizing nanoparticles for a wide range of applications, promising exciting developments in nanotechnology in the years to come.



Journal

Journal of the American Chemical Society

DOI

10.1021/jacs.4c02524

Method of Research

Experimental study

Subject of Research

Not applicable

Article Title

The Effect of the Capping Agents of Nanoparticles on Their Redox Potential

Article Publication Date

3-Jul-2024

Share28Tweet18
Previous Post

New gene therapy for muscular dystrophy offers hope

Next Post

Paving the way to extremely fast, compact computer memory

Related Posts

blank
Chemistry

Discovery of Intrinsic HOTI-Type Topological Hinge States in Photonic Metamaterials

August 15, 2025
blank
Chemistry

Scientists Employ Innovative Technique in Quest to Unveil Elusive Dark Matter Particle

August 15, 2025
blank
Chemistry

High-Throughput Discovery of Fluoroprobes for Amyloid

August 15, 2025
blank
Chemistry

Ocular Side Effects Associated with Semaglutide: New Insights

August 15, 2025
blank
Chemistry

Quantum Gas Defies Warming: A Cool Breakthrough in Physics

August 15, 2025
blank
Chemistry

FSU Chemists Pioneer Advanced X-Ray Material, Revolutionizing Thin Film Imaging

August 14, 2025
Next Post
Giant chiral magnetoelectric oscillations

Paving the way to extremely fast, compact computer memory

  • Mothers who receive childcare support from maternal grandparents show more parental warmth, finds NTU Singapore study

    Mothers who receive childcare support from maternal grandparents show more parental warmth, finds NTU Singapore study

    27533 shares
    Share 11010 Tweet 6881
  • University of Seville Breaks 120-Year-Old Mystery, Revises a Key Einstein Concept

    947 shares
    Share 379 Tweet 237
  • Bee body mass, pathogens and local climate influence heat tolerance

    641 shares
    Share 256 Tweet 160
  • Researchers record first-ever images and data of a shark experiencing a boat strike

    507 shares
    Share 203 Tweet 127
  • Warm seawater speeding up melting of ‘Doomsday Glacier,’ scientists warn

    310 shares
    Share 124 Tweet 78
Science

Embark on a thrilling journey of discovery with Scienmag.com—your ultimate source for cutting-edge breakthroughs. Immerse yourself in a world where curiosity knows no limits and tomorrow’s possibilities become today’s reality!

RECENT NEWS

  • Rewrite Illuminating photoreceptors: TGFβ signaling modulates the severeness of retinal degeneration as a headline for a science magazine post, using no more than 8 words
  • Partial Flood Defenses Heighten Risks, Inequality in Cities
  • Expanding Rock Extraction Boosts Enhanced Weathering Efficiency
  • Loop Quantum Gravity: Black Hole Effects Rewritten

Categories

  • Agriculture
  • Anthropology
  • Archaeology
  • Athmospheric
  • Biology
  • Bussines
  • Cancer
  • Chemistry
  • Climate
  • Earth Science
  • Marine
  • Mathematics
  • Medicine
  • Pediatry
  • Policy
  • Psychology & Psychiatry
  • Science Education
  • Social Science
  • Space
  • Technology and Engineering

Subscribe to Blog via Email

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Join 4,859 other subscribers

© 2025 Scienmag - Science Magazine

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
No Result
View All Result
  • HOME
  • SCIENCE NEWS
  • CONTACT US

© 2025 Scienmag - Science Magazine

Discover more from Science

Subscribe now to keep reading and get access to the full archive.

Continue reading