161 Questions 154 Answers 0 Followers
Questions related from Abbas Rahdar
I look for the excel files to calculate nonlinear parameters of isotherm.
11 November 2018 722 3 View
In Origin software, how can I remove row of numbers in succession in a column? Please see the attached file.
05 May 2017 8,886 0 View
I want to dissolve ZnO nanoparticles in water, compeletly, but it is not possible. please advice me about this case. please suggest me another solvent along with water. Thank you due to kind...
04 April 2017 4,349 3 View
as you konw, to convert the intensity distribution to volume and number distribution is used from Mie theory (and not other theories) in DLS .What is reason for selection Mie theory (and not...
01 January 2017 9,641 3 View
what is effect of oil (continuous phase ) on the flouresence intensity in water-in-oil microemulsion?
10 October 2015 8,812 1 View
thanks.
09 September 2015 7,862 2 View
Is there relationship between particle size from hydro-dynamical diameter (Stokes-Einstein ) and size from intensity,volume and number by DLS measurement?
09 September 2015 6,599 0 View
with adding water-soluble polymer to water/AOT/oil microemulsion ,What kind of interactions that occur?
09 September 2015 5,233 1 View
08 August 2015 8,492 0 View
08 August 2015 478 0 View
08 August 2015 3,820 0 View
08 August 2015 6,772 0 View
What the water to surfactant molar ratio we need?
08 August 2015 4,525 0 View
08 August 2015 1,052 0 View
can i measure the thin film thickness by Uv-Vis?
08 August 2015 580 6 View
Thanks .
08 August 2015 963 0 View
please introduce me technique for characterization. How can we understand a water-soluble polymer in water-in-oil microemulsion Non-adsorbed or Adsorbed in the water nanodroplets?
08 August 2015 1,467 3 View
please tell me about role of both of them and its difference in stability of nanoparticles.
08 August 2015 1,962 5 View
08 August 2015 8,250 1 View
is The "Beta" (β) same the FWHM in the Scherrer formula to calculate the crystallite average size in the profile of Gaussian, Pseudo-Voigt, Pearson VII, Lorentzian?
08 August 2015 277 2 View
please tell me which microemulsion (water-in-oil or oil-in-water) is good to load water-soluble drugs?why?
07 July 2015 5,075 8 View
please suggest me a good software to design phase diagram for determine concentrations of three component (water,oil,surfactant) in micellar system?
07 July 2015 5,100 0 View
07 July 2015 5,520 0 View
Thanks.
07 July 2015 10,070 0 View
Thanks in advance for your replies.
05 May 2015 9,716 3 View
can we take TEM image from the microemulsions ?
05 May 2015 8,457 1 View
please tell me procedure .thanks.
05 May 2015 5,132 0 View
please introduce me a nanotechnology center that work in the semiconductors Quantum Dots in biological detection and imaging and biolabelling at a university in Germany to spend a sabbatical ?
05 May 2015 8,039 2 View
please suggest me different dyes that soluble in water?
05 May 2015 6,733 1 View
please suggest me lipids that do not deteriorate over time?
05 May 2015 3,385 1 View
05 May 2015 9,552 3 View
How do magnetic nanoparticles recognize targets such as tumor and cancer cells than safe cells?
04 April 2015 294 0 View
Why is pear-shaped the interaction volume of sample in the SEM ?
04 April 2015 8,860 3 View
04 April 2015 9,674 7 View
04 April 2015 1,835 23 View
what is FFT application in HRTEM images?
03 March 2015 7,016 1 View
The PH of solution containing magnetic nanoparticles for applications in medical diagnostics and treatment and drug delivery how should it be?
03 March 2015 6,319 8 View
please introduce me website about nanobiotechnogy education?
02 February 2015 8,051 2 View
if the peak intensity of (h k l ) plane in XRD for thin film/ bulk be maximum ,what shape is its ring in the electron diffraction in the TEM ( Thinner or wider) ?
02 February 2015 3,559 4 View
Thank you.
02 February 2015 7,645 7 View
why is the exchange interaction in Nano scale stronger than bulk?
02 February 2015 9,601 12 View
Please compare saturation magnetism value in the bulk and naoscale ( in the easy and hard axis )?
02 February 2015 2,527 0 View
please tell me about behavior of Hard Axis Loops and easy Axis loops in thin films?
02 February 2015 970 5 View
can anyone tell me about the hysteresis loop behavior of ferromagnetic thin films?
02 February 2015 5,833 5 View
what is advantages of Quantum Dots than organic dyes in biolabing of living bacteria or cells ,etc ?
02 February 2015 5,918 0 View
For take SEM image in the BSE mode should sample surface be smooth or not necessary?
02 February 2015 4,732 12 View
.
02 February 2015 3,469 4 View
what is origin of color generation from nanoparticles and nanostructures?
01 January 2015 7,382 6 View
What is the origin of color in bulk metals?For example, Why gold is yellow?
01 January 2015 3,582 7 View
what is mechanism that produce color in butterfly wings? pigment or diffraction ?
01 January 2015 4,186 5 View
what is aspect ratio and what is its role in the surface plasmon resonance in particles?
01 January 2015 3,405 2 View
What are the methods to create a plasma in the chamber for the thin film deposition ?
01 January 2015 1,916 4 View
What is the role of plasma in the thin film deposition?In all methods of physical vapor deposition of plasma used? In chemical vapor deposition, how?
01 January 2015 2,988 5 View
Which deposition method does the oxide thin film is better? why ?
01 January 2015 7,301 10 View
How to create plasma conditions?
01 January 2015 1,102 5 View
can anyone tell me about how to Polarization and surface plasmon resonance of spherical nanostructures, nanorods and nanowires ?
01 January 2015 5,672 3 View
does doping in Si (n-type and p-type ) change the lattice parameter ?
01 January 2015 9,614 3 View
What is difference between Hall-Petch and reversed Hall-Petch ?
01 January 2015 748 3 View
Can anyone tell me at least three possible mechanisms of hardness enhancement in the superlattice coating?
01 January 2015 7,406 1 View
As size change from bulk to nanoscale ,orbit moment increase or spin moment ?
01 January 2015 4,955 1 View
is equal The number of X-Ray peaks in XRD and the number of rings in the electron diffraction pattern by TEM for a same polycrystal thin film/powder sample?
01 January 2015 8,078 7 View
Is it logical that I observe the x-ray peaks in 20 degree while i use from the GIXRD (low-angle ) for thin film structural study? why ?
01 January 2015 443 26 View
One can introduce the website useful notes to be offered in different areas of nanotechnology?
01 January 2015 442 2 View
Can anyone suggest useful books in nanoelectronics, nanooptics,nanocomposites, or nanomagnetism fields with low mathemathic level but functional and operational approach?
01 January 2015 2,043 2 View
Can anyone tell me about the molecular wires application in nanoelectronics?
01 January 2015 3,626 0 View
Is possible the thin film structural analysis by XRD? As we all know XRD is useful in bulk and not surface layer.
01 January 2015 4,107 30 View
why the hardness can be further enhanced in the nanocomposite coating design even though the Nano crystalline size is below 10 nm ?
01 January 2015 2,588 2 View
what is reasons of change in the magnetic properties in the Nano scale than bulk?
01 January 2015 6,848 1 View
Why isn't a hole created in absence of electrons due to intra band transition in the metals?
01 January 2015 7,590 13 View
What is difference between photonic band gap in photonic crystals and band gap in semiconductors?
01 January 2015 6,548 7 View
Is the absorption in metals nanoparticles stronger than nanoscale semiconductors , or vice versa ?how about the emission ? Why ?
01 January 2015 8,435 2 View
Is the absorption in bulk metals stronger than semiconductors , or vice versa ?how about the emission ? Why ?
01 January 2015 5,205 7 View
What is the difference in the absorption and emission of bulk semiconductors and semiconductor nanoparticle ?
01 January 2015 2,440 2 View
Why noble metals like gold, silver and copper in bulk state are not magnetic, but the at the nanoscale are magnetic?
01 January 2015 1,262 4 View
What is the origin of magnetism? for example , Why the secret of the origin of magnetism in iron is shell 3d while in the rare-earth metals 4f shell is origin of magnetism?
01 January 2015 4,071 7 View
As we know band gap is a forbidden region of energy for carriers but why does create the donor and acceptor levels in forbidden region ?
01 January 2015 3,935 5 View
can anyone tell me about the energy barrier in superparamagnetism?
01 January 2015 6,273 1 View
PVD thin film uniformity is better than CVD or vice versa? why ?
01 January 2015 945 5 View
Easy and hard axes of magnetization in the case of Cobalt nanowires /thin film/ bulk in what directions?
01 January 2015 9,084 4 View
What should be the thickness of a thin film where surface anisotropy on the shape anisotropy overcome?
01 January 2015 3,875 3 View
can anyone tell me about behavior of Hard Axis Loops and easy Axis loops in thin films?
01 January 2015 9,553 1 View
what is difference between monolayer and thin film?
01 January 2015 9,789 4 View
When do we use the small angle x-ray (two-theta less than 5 degrees) for thin film structural study,Is it possible observe x-ray peaks at higher angles? why ?
01 January 2015 2,018 7 View
what is difference between super-hardness and super-toughness coating?
01 January 2015 4,945 1 View
what is difference between CVD and PVD for thin film coating?
01 January 2015 6,468 8 View
Why the hardness may start to decrease when the grain size is below 10 nm in Nano crystalline film ?
01 January 2015 2,441 10 View
Can anyone tell me about substrate role on magnetic properties of thin film?
01 January 2015 9,288 3 View
01 January 2015 7,328 7 View
See above
01 January 2015 6,828 10 View
What is origin of the energy band formation in solids? perturbation theory or Pauli exclusion principle?
01 January 2015 5,399 15 View
Is it true that for every bulk metal absorption and emission occur at approximately the same wavelength?
01 January 2015 1,898 1 View
What is the difference in the absorption and emission of bulk metals and metal nanoparticle ?
01 January 2015 2,698 2 View
What is the difference between an alloy and a compound?
01 January 2015 8,488 6 View
what is difference between to make alloying and doping?which does process (alloying or doping ) change lattice parameter?
01 January 2015 1,021 6 View
01 January 2015 9,861 1 View
01 January 2015 6,779 6 View
In the doping, if the impurity atoms size lower the host atoms size ,change in peaks intensities or shifting in X-Ray peaks?
01 January 2015 8,181 3 View
By doping in semiconductors the levels is created in band gap ,now in photonic crystals by creating defect, does create levels in photonic band gap?
01 January 2015 4,018 3 View
What kind of information is derivable from the Photoluminescence Spectra of nanoparticles and thin films?
12 December 2014 1,081 2 View
what is reasons to cause discrepancies between the peak positions of an X-ray spectrum and its standard data?
12 December 2014 9,069 1 View
What is the major difficulty with interpreting all TEM images?
12 December 2014 6,297 1 View
can anyone tell me that Why are electron images not in colour?
12 December 2014 5,945 0 View
why is the color of 20 nm gold nanoparticles red? What happens when two or three gold particles agglomerate together?
12 December 2014 9,440 3 View
what is color origin of nanoparticles in the different sizes?؟
12 December 2014 3,085 2 View
can anyone tell me For an industrial application that requires fast identification of elements, what XRF system (WDS or EDS) is better?
12 December 2014 568 3 View
Can we use the ZAF method for quantitative analysis for EDS in a TEM?
12 December 2014 9,009 2 View
can anyone tell me How do you change the image magnification in a TEM?
12 December 2014 1,345 0 View
is possible identify and calculate of strain and stress from an dark field image in TEM ?
12 December 2014 7,798 0 View
I want to take SAED,did a selected-area aperture locate in the image plane of the objective lens or in the back focal of the intermediate lens ?
12 December 2014 1,046 2 View
Thanks in advance.
12 December 2014 1,604 5 View
can anyone tell me about residual stress role in shift the diffraction peak position in XRD?
12 December 2014 2,978 15 View
Is the peak density (number of peaks per 2θ angle) higher at low 2θ or at high 2θ in X-ray diffraction spectra? Why?
12 December 2014 313 0 View
Do the XRD peaks of a crystalline shift to the high or low 2θ direction by doping? In other words, does the doping lead to XRD peaks shifting or change in the peaks intensity?
12 December 2014 2,663 6 View
12 December 2014 2,209 1 View
If diffraction peaks of a crystalline solid shift to the high 2θ direction by internal stress, is this tensile or compressive stress?
12 December 2014 498 3 View
What is the Preferred Orientation role in peaks shifting in the XRD?
12 December 2014 7,720 7 View
is it possible identify defects( (point (vacancy) ,linear (dislocation),planar (grain boundary)) with HRTEM ? TEM? STEM?
12 December 2014 235 13 View
Can anyone tell me relationship between broading and crystalline quality of semiconductors nanostructures in Photoluminescence ?
12 December 2014 6,738 2 View
can anyone tell me meaning of multi-peak of the PL in nanomaterial?
12 December 2014 2,691 2 View
can anyone tell me meaning of broadening of the PL in nanomaterial?
12 December 2014 7,507 2 View
what is Fermi energy ? what is its important?
12 December 2014 5,858 0 View
Can anyone tell me difference between XRF and X-Ray Reflectivity (XRR)?
12 December 2014 4,680 3 View
Composition maps may be obtained by EDS, AES and XPS techniques. Please indicate the right technique(s) for each of the following types of samples: thin film of oxides, polycrystalline metals, and...
12 December 2014 8,597 8 View
Is it possible to eliminate surface charging of a insulator or polymer sample without conductive coating?
12 December 2014 3,504 5 View
Why is fluorescence microscopy more commonly used in biological and polymer specimens than in metals and ceramics?
12 December 2014 10,393 5 View
What change in the EDS spectrum when a specimen is tilted to face the detector in an SEM?
12 December 2014 4,855 3 View
12 December 2014 514 11 View
is it possible identify electrical field and Magnetic field from SEM image in SE mode? How?
12 December 2014 6,261 2 View
12 December 2014 9,136 6 View
What is the working distance (WD) label in SEM image?
12 December 2014 1,595 17 View
What is difference between interstitial doping and substitutional doping? Do you know any examples?
12 December 2014 1,491 2 View
can anyone give me information about n index in Bragg's law ? please tell me that n=1 for which ( h k l) planes? please tell me that n=2 for which (h k l) planes?
11 November 2014 2,814 2 View
Can anyone tell me that color change origin of synthesized nanoparticles in the different sizes is reflection or absorption or scattering effect ?
11 November 2014 7,556 4 View
Can anyone tell me that What is the relation between crystallite, grain and particle in Nano scale? Is the Scherrer equation used in the determination of size of particles, crystallite or grain in...
11 November 2014 5,013 0 View
Can anyone explain why XRD peak broadening occurs at the nanoscale?
11 November 2014 1,572 9 View
Can anyone tell me reason of band bending in semiconductors?
11 November 2014 2,833 9 View
Can anyone tell me that why is there a donor level in the band gap and conduction band under (and not in the conduction band ) and why the effective Fermi level shifts toward the conduction...
11 November 2014 4,080 3 View
can anyone tell me metal's dielectric constant negative or positive? why? metal nanoparticles dielectric constant negative or positive ? why?
11 November 2014 1,900 2 View
Why do shape and size have the greatest effect on the optical properties of metal nanoparticles?
11 November 2014 8,882 6 View
can anyone tell me about relationship between intensity of XRD peaks and doping level of a dopant in XRD pattern? Does intensity of XRD peaks increase as doping concentration increase?
11 November 2014 5,510 2 View
What is the best method to prepare the multi element OXIDES thin films on substrate?
11 November 2014 9,302 4 View
What is the best method to prepare the multi elemental (ALLOYS) and the single elemental thin films on substrate?
11 November 2014 7,026 4 View
can anyone tell me difference among scattering , diffraction and reflection basically and physically?
11 November 2014 6,073 8 View
can anyone tell me band theory and valance and conduction band formation basically and physically?
11 November 2014 10,076 4 View
What forces act on an electron as it interacts with atoms in TEM?
10 October 2014 1,275 1 View
10 October 2014 7,052 0 View
Can anyone recommend a Nanoceria Co-precipitation synthesis protocol please?
10 October 2014 4,626 2 View
10 October 2014 496 0 View
Can anyone help with SEM image detail interpretation, for example: what is the meaning of WD ? what is the meaning of Det:Sec ? what is the meaning of Det:in Beam? what is the meaning of HV:13.0 kv?
10 October 2014 4,251 23 View
Please answer based on Bragg's law.
10 October 2014 5,724 2 View
Why is TEM such an important experimental tool for materials scientists and nanotechnologists?
10 October 2014 5,509 2 View
Can anyone recommend a Nanoceria synthesis protocol please?
10 October 2014 1,152 12 View
In microscopy, what is the difference between resolution & resolving power?
10 October 2014 9,345 3 View
What is two-beam and multiple-beam condition in TEM and its application? please response based on Bragg's law . .
10 October 2014 6,289 3 View
How can I achieve paper with title :Core/Shell Nanoparticles: Classes, Properties, Synthesis Mechanisms, Characterization, and Applications
09 September 2014 1,286 5 View
Can anybody please explain the Zn Mole fraction and mole percent based on x = 0.0, 0.1, 0.2 for Co(1-x)ZnxFe2O4 nanoparticles
09 September 2014 3,304 8 View
Dear Satish Bolloju, i want to synthesis Zn1−xCuxS nanoparticles that Cu is doping agent with dopant content ranging from x=0.00,0.05, 0.10 .I prepare 0.1 M CuCl2 50 ml ,So for x=0.00 ,1.oo...
09 September 2014 951 0 View
09 September 2014 7,882 0 View
In the other words, suppose the CuCl2 volume is 50 ml ,So for x=0.00 ,1.oo ,2.00 , how much CuCl2 need in ml,respectively?
09 September 2014 5,327 3 View
Is anyone familiar with the functionalized core-shell Quantum Dot labeling and synthesis methods for cancer therapy?
09 September 2014 4,577 0 View
In Excel , how can I remove row of numbers in succession in a column? Please see the attached file.
01 January 1970 3,012 4 View
