you can use TEM to study the size and shape of nanoparticles. SEM (or FESEM) also can give you information on shape and size. XRD also can give you information about size and crystalinity of your nanoparticles. Zeta potential analyser can be used to study surface charge of NPs. If your nanoparticles are combination of different elements, you may also use FTIR to study bonding or exfoliation etc. DSC and TGA can be used to study thermal properties of nanoparticles.

you can use TEM to study the size and shape of nanoparticles. SEM (or FESEM) also can give you information on shape and size. XRD also can give you information about size and crystalinity of your nanoparticles. Zeta potential analyser can be used to study surface charge of NPs. If your nanoparticles are combination of different elements, you may also use FTIR to study bonding or exfoliation etc. DSC and TGA can be used to study thermal properties of nanoparticles.

there are lots of different ways of characterizing nanoparticles. its depends what are you looking for. I think xrd is the best way to see what particles are these and at the same time you can estimate particle size, them SEM, TEM for microstructure , PL and uv-vis for optical characterizing and FTIR to see functional grope in it

You can use first microtrac (size dispersion) to see if there are nanoparticles of this material and its size , and then you can use TEM to see its shape and corroborated your analysis in the microtrac.

Our you can use UV-vis for optical characterizing

Dear friends, Thank you so much for your nice suggestions and helping hands.

For preliminary characterization of size, we can use particle size analyser/SEM. Is there any other major characterisation / characteristic equipment that can support TEM and also confirming the preliminary analysis?

Dynamic Light Scattering

By "dynamic light scattering" it is very simple to measure the asymmetry. Please read this publication we did that for gold nanoparticles:

Article Magnetic Gold Nanoparticles in SERS-Based Sandwich Immunoass...

I'm not sure what kind of nanoparticles you are working with but generally for studying the morphology of the synhesized nanoparticles, you can begin with simple methods such as analysis of particle size and zeta potential by DLS and FTIR.

Friends dont forget that Raman Spectropy is also an important tool for Nanoparticle characterisation.

Also all are discussing about the optical,thermal characterisation and particle size characterisation.But if you arer interested for electrical characterisation then you may go for c-v,I-V measurement or dielectric measurement.

There are so many characterization techniques which could help you to analyze your synthesized NPs. Dr. Hezaveh has already mentioned about it. And some others are also suggesting to use certain techniques. Hope you could have got your answer.

Cheers.............

Characterization techniques depends on the type of nanoparticle you have synthesized as everybody has cleared, but if your nanoparticle are Magnetic in nature you can always go for VSM characterization along ICP analysis after having the idea of the Crystallinity of the as-synthesized nanoparticles...........

Dear

You can XRD analysis for investigation nanoparticle synthesis and calculation size of it.

Please firstly record XRD of your nanoparticle and then compare it with standard XRD or XRD reported in other paper for it. Then used Scherrer

equation D=Kλ/(β cosθ) you can calculated diameter of NpS

Best regards

Dr. KARIMI-maleh

Depends on what you have synthetized

DLS, SEM, AFM as it is shown in attached paper.

Article Polymerization Model for Hydrogen Peroxide Initiated Synthes...

There are some researchers who have used flow cytometry for some type of characterization of these nanoparticles but then it is wholly dependent upon your type of nanoparticle, precursors involved in it and most importantly the size........

Basically, it depends what do you want to measure. For the phase confirmation, you can do XRD, which can be further used for the measurement of crystallite size only if the size is less than 100 nm. The shape and morphology can be confirmed from SEM and TEM which can also tell you the size of your particles as well. For the optical properties you can do UV-Visiblle spectroscopic analysis. If you want to know the oxidation states of the elements in your compounds and their composition then you can do XPS, which can also give you information about the valence band edge for the calculation of Band Diagram. UV-Visible spectroscopy can also help you to calculate the band gap of the semiconductor materials by means of Tauc Plot. There are so many other techniques as well depending upon what you intend to do.

I don't know in which type of nano particles you are working but I think the initial & simple characterization can be done from color change & spectrophotometric (Absorption & emission ) study if applicable for your nano particles.

All the best..

simplest way of characterisation is by use of UV spectroscopic method

Any metallic or semiconductor nanoparticle should be characterized by UV-vis, Fluorescence, HR-TEM or TEM depending on particle size, DLS (watch our for the actual diameter and hydrodynamic).

Then if needed and other things are done such as capping exchange, organization, you can do IR, AFM.

SEM -you would have to coat your particles otherwise you may lose them due to high vaccum. ESEM could be used in some instances but particle size needs too be larger than "typical quantum dots".

XRD is the good method for (nanopowder) both size and material confirmation. Cost wise also it is cheaper one. SEM analysis will give information about shape and it will not give accurate size. SEM with EDS confirms the material also too. DLS for size analysis only but sample (spherical shaped particles) should be in liquid form. Moreover, sample particles are in rod shape, this analysis does not give proper result. UV.Vis is also a good tool for metals and semiconductor particles, if the sample is in liquid form otherwise finding the exact solvent is main problem.

A combination of XRD, SEM with EDS and UV-Vis analysis will give the necessary information of nanoparticles like size, shape and material confirmation. Cost wise also cheaper too.

based on the nanoparticles nature if metal nPs UV-spec analysis is simple

Depend on what kind of information u want to get. If u just wanna see the size than XRD is the simple and cheap, other than that: DLS, SEM, TEM. If u wanna know the critical size where it change properties than the instrument will depen on ur sample.

SEM, TEM, DLS, etc.

Article Assembly and Characterization of Polyurethane–Gold Nanoparti...

Any methods that has been described earlier can be used.One of them may suit with your sample. But for my experience on nanoglass, TEM is the best. Just in case your sample is in the form of thin film, other method such as using IR is also possible.

TEM, SEM

It also have to notice how small u wanna go?

Friends he asked the question at december 2012,,,, i think he completed the characterization of NPs by any of the method

XRD analysis associated with XPS measurement for monitoring the excitation state of the binding energy of the synthesized nanoparticles. SAED analysis is also an essential study for synthesized nanoparticles.

TEM is the best method for characterisation of NPs

Dear you can use zetasizer to give you 3 characters (ps, pdi, and zp), then you can do sem or tem for shape, franz diffusion cell analyzer to determine in vitro realising ability. Tq

Best way to characterize the nanoparticles is you go for particle size analyzer attach to zeta potential; particle size analyzer will provide you the information of size distribution of the particle as well as poly dispersity index value that will indicate whether the particles are monodisperse or not. Zeta potential value will indicate the stability of the particle.Then you go for TEM attach with EDS. TEM will exactly calculate the shape and size of the particle and EDS will provide you the purity percentage of your particle.

TEM is the best method but you can try either with UV-Vis Spectroscopy for some NP (e.g. for silver nanoparticles you could have information about shape and appro imately particle size)

XRD can give information about nature of crystalinity ,size, size distribution (SAXS),cation distribution. While TEM can give information about size, shape and size distribution.