scispace - formally typeset
Search or ask a question

Why are people scared of graphene oxide? 

Answers from top 10 papers

More filters
Papers (10)Insight
Open accessJournal ArticleDOI
729 Citations
In particular, it explains why it is so difficult to reduce the graphite oxide up to pure graphene.
FROM THE CLINICAL EDITOR Exposure to graphene oxide may pose toxic effects to health, as suggested in animal studies.
Besides, graphene oxide has a negative effect on the biological treatment.
This strongly doped graphene is very different from "graphene oxide" made by mineral acid attack.
Open accessJournal ArticleDOI
Xiaoqing Guo, Nan Mei 
357 Citations
Graphene, graphene oxide, and reduced graphene oxide elicit toxic effects both in vitro and in vivo, whereas surface modifications can significantly reduce their toxic interactions with living systems.
It is possible that graphene oxide can cause multigenerational harmful effects.
HIGHLIGHTSReduced Graphene Oxide & Graphene Oxide can cause potential environmental hazards. Mechanism of ocular toxicity of the materials is complex but not to be identified. Short‐term exposure tests indicate: Graphene Oxide has apparent ocular toxicity.
In striking contrast, graphene oxide is non-toxic for “bulk” cancer cells (non-stem) and normal fibroblasts.
Importantly, similar to previously reported graphene inhalation data, this short-term nose-only inhalation study found only minimal or unnoticeable graphene oxide toxicity in the lungs and other organs.
Graphene oxide (GO) may have a huge impact in construction industry in near future.

Related Questions

How Can get rid of Graphene Oxide NPS from human body?5 answersTo eliminate Graphene Oxide Nanoparticles (NPs) from the human body, various approaches can be considered based on the research findings. Studies suggest that the biotransformation of Graphene Oxide (GO) in simulated lung fluids can alter its properties, affecting its interaction with cells and potential long-term side effects. Additionally, the use of Graphene Nanoplatelets (GNP) as alternative hemosorbents for targeted removal of proinflammatory cytokines shows promise for rapid removal of sepsis-related molecules from the bloodstream. Furthermore, the reduction of Graphene Oxide to Graphene nanoparticles using eco-friendly methods like Amla juice extracts can potentially reduce the toxicity of the material, making it safer for use in biomedical applications. These insights highlight the importance of considering biotransformation, targeted removal, and eco-friendly reduction methods for managing Graphene Oxide NPs in the human body.
Are people scared of AI?3 answersPeople's opinions on AI vary. Some express concerns about AI privacy, particularly in the US, focusing on privacy disclosure by AI applications. Others question whether AI systems should be allowed to conceal their true nature and lie for our benefit. Trust in algorithmic decisions also varies, with emerging research suggesting that people trust human decisions more than algorithmic ones. However, different populations, particularly marginalized communities, may have different levels of trust in human decision-makers. The threat of AI is often seen as AI giving a small group of humans power over the rest of us, posing temptations of wealth and power. Overall, while some people may be scared of AI, others may have more nuanced opinions based on factors such as privacy concerns, trust in human decision-makers, and the potential misuse of AI.
Can you destroy graphene?10 answers
How do you kill graphene oxide?10 answers
How to get rid of graphene oxide?10 answers
Is graphene safe to eat?10 answers

See what other people are reading

What is the connection between alkali treatment of hemp fibers, sound absorption and the viscous characteristic length?
5 answers
Alkali treatment of hemp fibers plays a crucial role in enhancing their properties for composite applications. The treatment effectively removes non-cellulosic components, improves fiber-matrix adhesion, and increases tensile strength and stiffness. This improved adhesion between fibers and matrices due to alkali treatment leads to better sound absorption properties in composites, as seen in impact testing results where alkali-treated hemp fibers showed enhanced impact resistance compared to untreated fibers. Additionally, the alkali treatment alters the fiber constituents, such as cellulose, hemicellulose, and lignin, which influences the interfacial adhesion between fibers and matrices, affecting the viscous characteristic length of the composites. Therefore, alkali treatment of hemp fibers not only enhances mechanical properties but also impacts sound absorption and the viscous characteristic length in composite materials.
What are the current challenges and future prospects for integrating metal contacts on monolayer into 2D transistor technology?
5 answers
Integrating metal contacts on monolayer 2D semiconductors in transistor technology faces challenges such as high contact resistances and metal-induced gap states (MIGS). Achieving Schottky barrier-free contacts for both p- and n-type 2D FETs is crucial, with recent advancements showing promising results. Contact scaling impacts FET performance, with Au contacts to MoS2 FETs displaying reduced ON-current as contact length decreases. Novel metallic materials and contact strategies like van der Waals (vdW) metallic contacts and bulk semimetallic contacts offer solutions for low-resistance p-type contacts, minimizing MIGS and reducing contact resistance significantly. Future prospects involve exploring phase-engineered and semimetallic contacts to transition metal dichalcogenides (TMDCs) for enhanced transistor performance. Addressing these challenges and leveraging innovative contact strategies can pave the way for high-performance 2D transistor technology.
What is the effect of alkali treatment applied to hemp fibers on the viscous characteristic length?
5 answers
The alkali treatment applied to hemp fibers has a significant effect on the viscous characteristic length. Studies have shown that alkali treatment enhances the thermal stability and mechanical properties of hemp fibers. Specifically, the treatment increases the crystallinity of the fibers, leading to improved thermal stability and a rise in the glass transition temperature. Additionally, the removal of non-cellulosic components through alkali treatment improves fiber-matrix adhesion, resulting in better tensile strength and stiffness. Moreover, alkali-treated fiber composites exhibit enhanced flame retardancy and compatibility with the polymer matrix, further highlighting the positive impact of alkali treatment on the viscous characteristic length of hemp fibers.
How to discribe why microwave is synthesize faster than conventional method interm of Energy actiivation?
4 answers
Microwave heating enables faster synthesis compared to conventional methods due to its direct energy transmission to the reactants, reducing energy waste and enhancing reaction kinetics at lower temperatures. This efficiency arises from the microwave's ability to interact with polar media through dipole interactions, leading to rapid and uniform heating of the entire material simultaneously. Unlike conventional heating, which loses efficiency through energy transfer via various media, microwave heating's direct energy delivery mechanism minimizes energy loss and side reactions, resulting in ultrafast reactions with high precision and efficiency. Additionally, microwave-assisted synthesis offers eco-friendly conditions, quick reaction times, operational simplicity, and enhanced product yields, making it a preferred choice for rapid chemical reactions and materials preparation.
How to discribe why microwave is synthesize faster than conventional method interm of Kinetic of activation Energy?
5 answers
Microwave synthesis is faster than conventional methods due to the reduction in activation energy, as observed in various studies. The application of microwave irradiation leads to a decrease in activation energy during chemical reactions. This reduction in activation energy under microwave conditions alters the reaction mechanism, making the process more efficient and rapid compared to conventional heating methods. The rapid volumetric heating and specific energy absorption of microwaves contribute to higher reaction rates and increased selectivity, resulting in shorter reaction times and higher product yields. Additionally, the enthalpy variation induced by microwave energy input plays a crucial role in lowering the activation energy, further enhancing the kinetics of the reaction.
What are the potential health risks associated with feeding pets food that contains propylene glycol?
5 answers
Feeding pets food containing propylene glycol can pose health risks. Propylene glycol, commonly used in foods, drugs, and cosmetics, has low toxicity but can lead to central nervous system depression, hematologic toxicity, and metabolic acidosis in high concentrations. Additionally, propylene glycol can cause metabolic disorders in patients and may lead to toxicity, especially in products with high concentrations. In animals, propylene oxide, a derivative of propylene glycol, is a genotoxic agent and a site-of-contact carcinogen, causing irritations and necrosis upon exposure. Moreover, propylene glycol toxicity can result from its metabolism to lactic acid, leading to significant toxicity and even death in extreme cases. Therefore, pet owners should be cautious about the potential health risks associated with feeding their pets food containing propylene glycol.
How do carbon quantum dots improve the efficiency and performance of triboelectric materials?
5 answers
Carbon quantum dots (CQDs) play a crucial role in enhancing the efficiency and performance of various materials. In the context of triboelectric materials, CQDs have been utilized to improve functionality. For instance, in the field of triboelectric nanogenerators (TENGs), graphene-based composite electrodes, doped graphene electrodes, and laser-induced graphene (LIG) electrodes have been explored to enhance TENG performance significantly. Similarly, in flexible piezoelectric sensors (FPS), the introduction of CQDs into polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP) films has shown improved piezoelectric performance, sensitivity, and stability, enabling applications like anti-touch alarm systems and vibration monitoring. Overall, the unique properties of CQDs, such as their large specific surface area, surface defects, and functional groups, contribute to enhancing the efficiency and performance of triboelectric materials in various applications.
Why the intensity of x-ray peak increases with doping while the other xrd peaks are absent?
5 answers
The intensity of the x-ray peak increases with doping due to the presence of short-range charge order (CO) in the material. This phenomenon is observed in electron-doped cuprates, where the CO peak intensity rises with decreasing carrier doping until a certain point, after which it is suppressed due to strong damping. The absence of other XRD peaks can be attributed to the specific structural changes induced by doping. For instance, in the case of Fe-doped zirconia, the substitution of Zr with Fe atoms leads to a significant change in the XANES spectrum, indicating a rearrangement of the crystal structure. Similarly, in Mn-doped ZnO nanoparticles, the lattice parameter slightly increases with doping, affecting the XRD pattern. These structural modifications and charge redistributions contribute to the observed changes in x-ray peak intensity.
What are the material advancement in 3D printing concrete?
5 answers
Material advancements in 3D printing concrete (3DPC) include the use of waste materials as supplementary cementitious materials (SCMs) to enhance rheology, although excessive use can reduce early strength. Lightweight aggregates like cenospheres, perlite, and foam beads have been explored to improve printing and mechanical performances, with optimized mixtures showing enhanced flow characteristics and specific compressive strength. Carbon-based nanomaterials (CBNs) such as graphene and carbon nanotubes have been studied for their potential to modify concrete properties at a molecular level, offering high-performance printable materials for 3D concrete printing (3DCP). Additionally, the Gradation-Ready Extrusion System (GRES) has been developed to produce graded, multi-material building components, allowing for variations in material properties within a single component, thus expanding the potential applications of 3D concrete printing.
What are the advantages of integrating 2D van der Waal heterostructures on silicon substrate?
5 answers
Integrating 2D van der Waals heterostructures on a silicon substrate offers several advantages. These heterostructures can be electrostatically programmed in nanoseconds, significantly faster than other 2D-based homojunctions. Additionally, the integration enhances the response of photocurrent in silicon-based PN junction photodetectors, leading to increased photoresponsivity and photocurrent gain, along with a higher optical I on /I off ratio. Moreover, the monolithic 3D integration of 2D materials on silicon platforms enables high current driving capability with low leakage, nonvolatile switching characteristics, and a tunable bandgap, crucial for various electronic applications like transistors, memory devices, and sensors. Overall, this integration showcases the potential for transformative multifunctional electronic devices, paving the way for advancements beyond traditional silicon-based systems.
Can fragrances be used as a tool for mood regulation or therapy?
5 answers
Fragrances have shown potential in mood regulation and therapy. Studies suggest that essential oils (EOs) extracted from plants have therapeutic effects, including alleviating depression and anxiety symptoms through various mechanisms like regulating monoamine levels and promoting neurogenesis. Inhalation of fragrances can modulate the central nervous system, affecting moods and behaviors. Additionally, refined oils from native plants have demonstrated antidepressant effects in experiments, indicating their potential for mood regulation. Fragrance diffusers have been explored to detect mental states like depression and stress from EEG signals and release appropriate fragrances in real-time to aid in recovery. While the exact mood-regulating mechanisms of essential oils are still being researched, their applications in mood regulation and therapy, along with their benefits in neurodegenerative diseases and diabetes, show promise for future therapeutic use.