Nanomaterials - Science topic

I'm working on synthesizing 1T MoS₂ via a hydrothermal method similar to the process described in the paper "A nano interlayer spacing and rich defect 1T-MoS₂ as cathode for superior performance aqueous zinc ion batteries."

The synthesis process involved dissolving 1 mmol sodium molybdate, 2 mmol thioacetamide, and 0.14 mmol CTAB, followed by stirring and transferring the solution into a 50 mL PTFE autoclave reactor for 24 hours at 200°C. I obtained a yellow to orange solution and after drying it weighing around 0.1 g.

I was expecting a higher yield based on the stoichiometry, but the actual product weight is much lower. Is this typical for this type of synthesis, or could I be missing something in the reaction? Also, how can I proceed with characterization with such a small amount of product?

Any advice or insights would be greatly appreciated!

Thanks in advance!

Has anyone worked on nanomaterials for biosensors? What challenges did you face in terms of sensitivity and specificity?

To study anti microbial activity of nanomaterials.

Hi! I actually want to know if there's a rule of thumb for sonicating nanomaterials. Sonicating for a long time might induce heat so I guess pulse mode is better. But the time to do it is often not stated. For example, 10 s pulse, 5 s off. or 10 s pulse, 10 s off. The duration might be 15 min., 30 min., or 1 hour or so. I do not really know the best.

It is hard to determine if it was sonicated well especially for dark-colored solutions.

Please help me to determine that my solution is well-mixed / homogenized.

Thank you!

I am preparing to conduct an experiment on the degradation of organic pollutants in soil using nanomaterials. I am looking for a scientific method to prepare contaminated soil by myself. Please help me. Thank you very much.

How to deal with or dispose of nanomaterials in case they come into contact with skin, clothing or food, knowing that most nanomaterials are toxic, such as nanosilver?

Nanomaterials

Can we perform docking the structure of two ligands? For example can we dock the structure of ZnO with the structure of any compounds of plant using Gaussian software? If we can do how to perform docking? orelse which software can we use for docking two ligands?

Can we use nanomaterial for bacterial coating or enahncing bacterial growth?

I need to do some experiment with it in liquid form.

Dear Colleagues,

I hope this message finds you well. As the field of nanotechnology and nanoscience continues to expand, it has become increasingly evident that collaboration and knowledge sharing are critical to advancing our research and its applications across various scientific disciplines.

To foster a more connected and collaborative environment, I propose the initiation of a global community dedicated to all researchers working in nanotechnology and nanoscience. This community aims to bring together experts and enthusiasts focusing on the application of nanomaterials in diverse fields such as medicine, energy, environmental science, electronics, and more.

To ensure this community is effective and beneficial for all, I am seeking your valuable input on the following:

I look forward to hearing your thoughts and working with you all to make this community a reality.

I m getting zero value at random places for magnetisation in ZFC and FC of my nano materials. Is it normal to get 0 value? My material is super paramagnetic.

What are the parameters should i obtain to simulate the optical properties? and which function should i used to do this work?

Thank you

When using different laser energies, what is the effect on the size of nanoparticles? Does it increase or decrease with increasing energy? Please help

actually what is the main difference between chemical synthesis and green synthesis of nanoparticles? while compared to chemical synthesis, how green synthesis reduce the toxity of prepared nanomaterials?

Energy Engineering new special issue“Eco Smart Materials for the Future Energies-(ECOSMATTECH 2024)”is open for submission now.

Submission Deadline: 30 November 2024

This special issue is for the selected papers from International conference on Eco Smart Materials for the Future Technologies(ECOSMATTECH-2024), which will be held from May 22nd to 26th, 2024. The Venue is in the Faculty of Sciences, Mohammed V University in Rabat – Morocco. For the latest updates and more details : https://ecosmattech2024.com/.

The thematic collection will focus on the latest research and development work ranging from fundamental mechanisms and technical methods used in materials science to advanced nanotechnological applications in the energy field. Due to the ongoing and rapid developments in the field of materials, the collection will provide an assessment of recent developments in theoretical and experimental studies of material properties ranging from the massive to the nano, including low-dimensional systems in which quantum confinement of electrons is very important, as well as two-dimensional and nanostructured systems. The collection will also present the latest technological advances involving materials, for energy applications. Theoretical approaches to understanding materials properties and predicting their behavior in complex or inaccessible environments will also be covered. The latest developments in the field of theoretical methods using advanced quantum mechanical methods for energy applications, such as ab initio calculations based on density functional theory, will be also present.

For submission guidelines and details, visit: https://www.techscience.com/.../speci.../eco-smart-materials

Nanomaterials, thin films, solar energy, batteries

Nanomaterials in a powdered form are challenging to use in laboratory concrete specimen casting. This is due to the minute-sized particles and the safety considerations. Therefore, there is a need to use nanomaterials in liquid form without altering their properties when used in the casting of concrete specimens.

Role of activator and sensitizer and how we select their concentration?

Is the journal of nanotechnology research a predatory Journal?

I am working on HKL values calculations for Pna21 space type BFO. is there anyone who can recommend a reliable method for the calculations of HKL values without accessing JCPDS cards....?

remember the calculations are for orthorhombic and rhombohedral crystals....

#research #researchanddevelopment #nanomaterials #photocatalysis #energy #energystorage #xrd #crystallography #materialscience #waterpollution #watertreatment

Which TEM grids can be used to analyse biochar material, it is fine powder . Any TEM expert can help??

Thanks and Regards

This is the method I am following adding 0.305 g of ammonium metavanadate (NH4VO3, Sigma-Aldrich, 99.99%), 0.119 g of sodium hydroxide (NaOH, Sigma-Aldrich, ≥97.0%, pellet), 0.205 mL of phosphoric acid (H3PO4, Sigma-Aldrich, 85 wt% in H2O) to 100 mL of 0.02 M aqueous citric acid solution (HOC(COOH)(CH2COOH)2, Sigma-Aldrich, ≥99.5%) while the solution was continuously stirred. Next, ammonium hydroxide (NH4OH, Aldrich, 28.0 ∼ 30.0% NH3 basis) was slowly added to the solution to adjust its pH to 9 at which metal ions can be chelated by citric acid. Then, water was evaporated at 80°C to transform the solution from sol to gel.

However, its not forming a gel even though water is evaporating, what should I do?

ICMEAAE 2024 provides an enabling platform for Materials Engineering and Applied Mechanics experts to exchange new ideas and present research results. This conference also promotes the establishment of business or research relations among global partners for future collaboration. We hope that this conference could make a significant contribution to the update of knowledge about this latest scientific field.

ICMEAAE 2024 warmly invite you to participate in and look forward to seeing you in Changsha, China.

The topics of interest include, but are not limited to:

1. Materials

- Materials Science and Engineering

- Nanomaterials

- New Energy Materials

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2. Applied Mechanics

- Vibration Science

- Elasticity

- Particle mechanics

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All accepted full papers will be published in the conference proceedings and will be submitted to EI Compendex / Scopus for indexing.

Full Paper Submission Date: February 23, 2024

Registration Deadline: March 1, 2024

Final Paper Submission Date: March 8, 2024

Conference Dates: March 15-17, 2024

Please inform me about the value of material constant "a46" for SWCNTs required for use in spintronic devices. Can anybody help me with that ?

I used a Horiba SA-9600 surface area device to measure the surface area of ​​some nano materials. But this is a device that gives values ​​directly without obtaining data tables or using absorption and desorption curves. Is it considered sufficient direct value for research and thesis?

Metallic nanomaterials have mechanical flexibility characteristics and are used as electrodes in the flexible electronics field. Why does Metallic nanomaterials (nanoparticle, nanowire) have mechanical flexibility? In addition, please provide a reference to the mechanism.

Happy new year

Nanomaterials are materials with at least one dimension in the nanoscale range (1-100 nm). They have unique physical, chemical, and biological properties that can be exploited for the development of innovative biomaterials for neurology. However, they also pose potential risks and challenges to the safety and efficacy of these applications. In this discussion, we will explore some of the potential and risks of nanomaterials in neurology, such as:

- Nanoparticles for drug delivery and imaging of the brain and spinal cord

- Nanofibers for scaffolds and electrodes for neural tissue engineering and simulation

- Nanosensors for monitoring and modulating neural activity and signaling

- Nanocomposites for enhancing the mechanical and electrical properties of neural implants

What are your thoughts on the benefits and drawbacks of using nanomaterials in neurology? Do you have any experience or interest in this field? What are some of the ethical and social implications of nanotechnology in medicine?

I synthesized different oxide nanomaterials but cannot find the Preferred Orientation and Strain of crystal structure. how to resolve it, give me yours valuable suggestion.

Some articles about the freeze-drying of nanomaterials, more specifically gold nanoparticles. I would be grateful.

My question is self explanatory.

Which nanomaterials are preferable for use in biomass?

What is the research progress of nanomaterials in the field of plant protection?

XRD patterns of synthesized nanomaterials.

Hello Guyz,

I've a nanomaterial dispersion in water. I want to recover the material in solid form. I have used freeze drying method earlier. Now I want to utilise another method? What would be a facile method for drying the sample properly and recovering the nanomaterial powder?

We are preparing (sponge) foam-based sensors using nanomaterials as fillers... We are facing the problem of spillage of nanomaterials after dip coating.. is there any way to contain the fillers within the foam?

I synthesized protein nanomaterials using different divalent metal ions, and intrinsic Fluorescence intensity was measured, my results show nanomaterials with Copper and ferrous ions significant quenching while other metals showed significant increase intensity like with zinc cobalt and megnease as compared to control alone. like I used 0.05mg/ml protein in my synthesis. why did this happen?

One of the 20 fundamental vibrations of benzene occurs at 1309.8 cm^-1, corresponding to the B_2u symmetry. According to the rule of mutual exclusion, this vibration is forbidden in Raman and ATR spectroscopy. However, in a complex with benzene, we observe strong IR activity at 1309.8 cm^-1 in ATR. Why is this?

for example, the biosynthesis of goethite for the removal of As. Please provide your comments on this aspect.

I am currently engaged in modeling the desalination performance of Cellulose Acetate (CA)/Graphene Oxide (GO)/POSS Mixed Matrix Membranes (MMMs) for reverse osmosis (RO) applications. The primary objective of my research is to develop a comprehensive understanding of the transport phenomena and rejection mechanisms within the membrane, utilizing the Donnan-Steric Pore Model (DSPM). As part of this endeavor, I am seeking to determine the effective membrane thickness.

During the membrane preparation process, I have acquired information that the solutions of composite membranes were cast onto a non-woven Hollytex polyester substrate taped to a clean glass plate with 250 μm thicknesses using casting knife. However, I am curious if there exists any way to determine the effective thickness of the membrane without resorting to experimental methods.

Q: How does quantum confinement in nanowires affect the electronic and optical properties - and how can these effects be manipulated to create novel devices such as LEDs or solar cells?

In order to improve the properties of light blocks, which nanomaterials are more suitable to use?

How can we ensure eco-friendly nanomaterials' long-term stability and durability in water treatment processes while minimizing potential risks associated with their use, such as releasing nanoscale particles into the environment and their effects on human health !?

I am a researcher in Microbiology. I am trying to prepare a nano material from hydroxy appetite. Can anyone give me a brief on how to do that?

I prepared CdS and I got sharp peaks with high intensity in the XRD pattern. The peaks at 2𝜃 do not correspond to ICSD of the XRD patterns of cubic and hexagonal CdS nanocrystals. How can I discuss that?

Which Nanomaterials and techniques are best for waste water treatment ?

Which dialysis bag is suitable for 2 nm size particles

My area of research is regarding dietary supplementation of nanomaterials to the fingerlings and studying the growth influence of the respective nanomaterial in fingerlings. so I doubt what enzymes should be studied in the enzymatical analysis.

I want to make a model to simulate the state performance of a certain grid point in a cell body in different states. I use a neural network model to build it. I don't know how to divide the finite elements reasonably. That is, with a grid point as the center, the problem of selecting its adjacent points.

Regarding the importance of using Metals (single atom, nanoclusters) as an active sites on a support (Metal Oxides, Metal sulfides, etc.) for enhancing the photocatalytic chemical reaction (H2 evolution / Water splitting/ CO2 reduction), which active sites will be good ; Metal single atom or Metal Nanoclusters or Mixture of them?

Can I use alternative material instead of lithium chip or lithium foil as a working and reference electrode and assemble two-electrode half cells for analyzing electrochemical performance tests by not using a glove box? When ı read articles related to cell montage, generally, it is mentioned using glove boxes. Is there any alternative? while answering Could you share a reference, please?

Thank you

Cancer is killing millions of people around the world treatment is there & prolongs life span,but still mostly it wins in the end.

Synthesis of nanomaterial via hydrothermal method , yield I get after final process very small in quantity. How I increase yield using this method for my research.

please give any suggestion.

Thank you.

We are trying to nanocoat cells to protect the cells. Normally the cell surface is negative charge, so we treated cells with positive charged material as the first layer, then treated cells with negative charged material as the second layer. How can I measure the charges of cell surface to demonstrate that the nanocoating of cells is successful? We ever tried to use zeta-potential to measure the charges of cell surface, but it didn't work. 

Humbly asking for help

Which quantum mechanical model is routinely used to understand the property variation in nanomaterials?Explain using examples?

I've doped a nanomaterial with an electron donor, the X-band ESR spectra does indicate that there is a change in the line widths of both the spectra along with a slight change in the g-factor values. Does this indicate a change in the electronic environment of the nanomaterial? For example can it be conclude that a charge transfer is taking place? The spectra is attached. The dark yellow spectra is only of the nanomaterial. The orange spectra is after the addition of the electron donor

I want to encapsulate of nano materials into the CNTs So i want to draw the nanotube inside the CNTs by using materials studio software.Any one can tell me how is it possible.

How about the International Research Awards on Advanced Nanomaterials and Nanotechnology? How to evaluate the award from the perspective of a researcher in the field of nanotechnology

Let's say I've a host-guest complex. I've two sets of Uv-Vis data, one where the host concentration is constant and the guest is varied and in the other the guest's concentration is constant and the host's concentration is varied. Is it possible to comment about the interaction between the two species from the perspective of d-d transitions?

Specifically interested in purine derivative as a cation of ionic liquid.

Any relevant reading suggestions are highly appreciated. Thanks.

Magnese ferrite nanomaterials tend to agglomerate very fast, when we synthesize by natural extract

Are their any advantages of using mixture of two solvents rather than one solvent for exfoliation of 2D nanomaterials?

It is okay to just deposit the material over the thin films and contact the silver paste. Then illuminate with a particular source of light.

Please anyone give us what is the significant difference between photocatalysis, electrocatalysis, and photoelectrocatalysis

I am trying to see if my water filtration membrane is leaching during filtration

I intend to perform mechanical tensile test for my polymer nanocomposites. Does there exists any ASTM standard to follow? Can I also know the dimensions of the specimen to be produced? Lastly, I intend to create a mould for the dog-bone shape. Can we get files online to create the dog-bone mould using 3D printer?

Range of humidity parameter for ambient nanomaterials' growth by CVD

Please contact us if interested in publishing in this Special Issue from Processes (MDPI). Original work and reviews will be considered.

Hi All,

I work with nanomaterials. Especially with Carbon Dots, with fluorescent properties (Max emission at 650 nm and Max excitation at 400 nm, sizes around 2nm). When we use Confocal Microscope for cell internalization, we get no fluorescence. However, it is possible to detect the shift very clearly in Flow Cytometry. Still, I think I have no choice but the Confocal Microscope to track Carbon Dots inside the cell. (It is not easy to show that these materials are inside the cell in TEM as well). What could be the reason for this situation? does anyone have a similar problem? I need your help. Why can not we detect these nanomaterials by Confocal but we can detect them by Flow Cytometer?

What are the biggest technological challenges in the production of core-shell nanomaterials?

Can you please tell your experience and/or give comments on morphology control, synthesis precision, stability and durability, economic viability, etc.