What could be possible reason of higher Drug Concentration of Liposomal formulation stability samples over time?

Hello Everyone! I have prepared liposomal formulation using Rotary Evaporator method followed by dialyzed the liposomal Suspension in Phosphate buffer to remove the un-encapsulated drug. After...

25 January 2021 7,752 4 View

What is the advantage of DFT over tight-binding methods or vice-versa?

It might be a very basic question, but can somebody please put some light that what is the advantage of using Density Functional Theory (DFT) over tight-binding approximation or vice-...

31 August 2020 4,937 3 View

How the position of band inversion (near or away the Fermi level) affects the electrical transport and thermal properties in semi-metals?

Dear all, Can somebody please put some light on how the position of band inversion, near or away the Fermi level affects the electrical transport and thermal properties in semi-metals? Thanks in...

19 August 2020 5,202 8 View

My protein is a recombinant protein constitutively expressed in Pichia.Why am I getting a smear/ dragging of the loaded protein?

The protein (55KDa) has low contentration. It is purified via ammonium sulphate salting out and desalted with pD10 column. Will working with SDS-PAGE (10% resolving and 5% stacking), a drag is...

05 June 2019 4,216 14 View

How to perform band structure calculations with HSE + SOC in VASP?

Can Somebody please tell me that how to perform band structure calculations with HSE + spin-orbit coupling (SOC) in VASP? In normal HSE calculations, we perform SCF claculations with WAVECAR of...

07 January 2019 1,310 6 View

What is the meaning of parity of a band?

As we know, a band has partial contribution from all the orbitals of all the atoms, then how can we determine the parity of a band from these partial contributions? What is the physics involved in...

22 February 2018 5,256 8 View

Is there any theory which explains the origin of the existence of indirect band gap for a material?

As we know, Kronig Penney model explains the existence of band gap at the same 'k', i.e. direct band gap. However, there is nothing like indirect band gap in KP model. Then, how can we explain the...

02 May 2017 7,619 3 View

What are High symmetry points in a crystal?

12 February 2017 6,848 7 View

PSI Short form Abidin scoring?

Can anyone please guide me about how to interpret the subscale scores for the Parenting Stress Index (Esp the parental Dysfunctional subscale). Any guidance will be much appreciated!!!

18 January 2017 2,828 3 View

Any ideas of how to run a power analysis to determine sample size for a within group study?

Hi I am planning to run a within group study (collecting data from the same participants thrice). The questionnaires I am using are the BRIEF COPE, PSI (Parental stress index) and PSS (perceived...

13 November 2016 3,357 1 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

What is involved in morphological changes of SEM images of a substance?

In the sem analysis of CaCO3 nanaoparticles, the morphology images showed spherical shaped particles but the proposed morphology for these type of nanoparticles is trigonal. I prepared the...

01 March 2021 1,960 4 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

Modeling viscosity using model of Chung?

Hello, As part of simulation of gases mixture and water, I need to calculate viscosity of the fluid components and I am using relationships proposed by Chung et al. (1988). The irony is while I...

25 February 2021 8,053 5 View

How do you mesh a thin solid in Fluent?

Hello, I have used the shell function on SpaceClaim to create thin solids for the model I am studying. These are contained within an enclosure for my study. I chose this approach as it avoids the...

24 February 2021 8,856 3 View

Physical-chemical formation of stalactites/stalagmites. what promotes the formation/growth of these structures?

I know, or think I do, the basic idea behind these natural structures, as from what I know they form due to water dripping from the top leaving a salt deposit behind. But started to wonder about...

22 February 2021 1,400 4 View

Is there an ideal incubation time of RGO-modified SPCE before subsequent use, i.e., electrochemical characterization or further modification?

I notice that upon washing and air-drying of my RGO/SPCE surface and characterizing again via DPV, the current response towards ferricyanide probe significantly decreases. My worry is that the...

22 February 2021 5,324 3 View

Model Volume fraction and magnetic field applications of nanofluids in ANSYS?

Hi I am working recently on a project where I have to study how the thermal properties or heat transfer enhancement of nanofluids as the volume fraction changes, or if a magnetic field is applied...

22 February 2021 961 2 View

How to do a surface treatment of uncoated TiO2 with polymer?

Basically, I would like to know how to treat or coat on the uncoated bare TiO2 (Ti-OH rich) surface with polymer which has anchoring groups in the polymer structure like trimethoxygroups. What is...

21 February 2021 4,657 6 View

How can I measure the surface interaction or surface interfacial chemistry between polishing abrasives and upper surface of substrate ?

I am working on polishing abrasives. I need to do few characterizations ? which can provide the on time surface chemistry of substrate with polishing abrasive during optical polishing. I would...

18 February 2021 5,319 3 View