We evaluated the toxicity of graphite nanoplatelets (GNPs) in the model organism Caenorhabditis elegans. The GNPs resulted nontoxic by measuring longevity as well as reproductive capability end points. An imaging technique based on Fourier transform infrared spectroscopy (FT-IR) mapping was also developed to analyze the GNPs spatial distribution inside the nematodes. Conflicting reports on the in vitro antimicrobial properties of graphene-based nanomaterials prompted us to challenge the host-pathogen system C. elegans-Pseudomonas aeruginosa to assess these findings through an in vivo model.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/nl204388p | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Application of Hydrogenated Graphitic Supports in Electrocatalysts: Effects on Carbon Support Surface Chemistry, Nanoparticle Growth, and Electrocatalytic Activity.
ACS Appl Mater Interfaces
January 2025
Department of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada.
One of the key technical challenges before the widespread adoption of proton exchange membrane fuel cells (PEMFCs) is increasing the durability of the platinum catalyst layer to meet a target of 8000 operating hours with only a 10% loss of performance. Carbon corrosion, one of the primary mechanisms of degradation in fuel cells, has attracted attention from researchers interested in solving the durability problem. As such, the development of catalyst supports to avoid this issue has been a focus in recent years, with interest in hydrophobic supports such as highly graphitized carbons.
View Article and Find Full Text PDFWater absorption properties of graphene nanoplatelets filled bamboo/kenaf reinforced polylactic acid hybrid composites.
Int J Biol Macromol
January 2025
Advanced Engineering Materials and Composites Research Centre, Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia, UPM Serdang, 43400, Selangor, Malaysia; Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, UPM Serdang, 43400, Selangor, Malaysia.
Environmental issues have resulted in the forming of sustainable materials, including natural fiber-reinforced PLA composites; nonetheless, this composite has low water resistance, resulting in poor composite performance. This research aims to investigate the impact of adding a small amount of graphene nanoplatelets (GNP) on the water absorption (WA) characteristic of bamboo/kenaf-reinforced PLA hybrid composites. The physical behavior and water resistance of the composites, as well as the mechanical performance and surface after 14 days of immersion, were comprehensively investigated.
View Article and Find Full Text PDFHigh-throughput extraction of cellulose nanofibers from Imperata cylindrica grass for advanced bio composites.
Int J Biol Macromol
January 2025
Research Institute of Mechatronics, Department of Mechanical Engineering, Changwon National University, Uichang-gu, Changwon 51140, Gyeongsangnam-do, Republic of Korea. Electronic address:
Article Synopsis
- A novel and cost-effective method for extracting cellulose nanofibers (ECNFs) from Imperata cylindrica grass was developed, resulting in high yield and purity.
- The extracted ECNFs exhibited impressive characteristics, including a uniform diameter, high crystallinity, and small crystal size, confirmed through advanced analytical techniques.
- ECNFs were shown to significantly improve the mechanical properties of chitosan composite films, while incorporating graphene nanoplatelets further enhanced their thermal stability, flame retardancy, and electromagnetic shielding capabilities.
Characterization of Antimicrobial Properties of Copper-Doped Graphitic Nanoplatelets.
Int J Mol Sci
November 2024
Department of Chemical Engineering, Wonkwang University, 460 Iksandae-ro, Iksan 54538, Jeonbuk, Republic of Korea.
Article Synopsis
- - Recent outbreaks of pathogens have led researchers to explore graphene as a potential antimicrobial agent due to its low toxicity and effective interaction with bacteria, making it attractive for antimicrobial applications.
- - Integrating graphene into copper coatings can enhance their antimicrobial effects, but challenges in uniformly distributing graphene within the copper matrix have limited practical use; Cu-doped graphitic nanoplatelets (CuGnPs) offer a possible solution to this issue.
- - Studies demonstrated that CuGnPs significantly reduced the survival of Staphylococcus aureus compared to controls, indicating that copper combined with graphene oxide can improve bacterial inhibition effectiveness.
Sonochemical Synthesis of Potassium-Intercalated Carbon Allotropes: Bulk Formation at Ambient Room Temperature.
Inorg Chem
November 2024
Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States.
Intercalation can be used to alter the electronic properties of graphitic materials. Intercalation is, however, a notoriously brute-force process typically carried out at a high temperature in an inert environment for an extended period. As an exception to this, a simple sonication-assisted intercalation of potassium into graphite at ambient room temperature (RT) has been reported.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!