How to know if Zinc Oxide is coated on the glass substrates?

Hello all I have prepared Zinc Oxide nanoparticles using sol gel synthesis. I tried to coat the ITO and glass substrates with the ZnO nanoparticles ( dispersed in ethanol). But I am not sure if...

08 December 2020 3,692 8 View

Which PEIE to use?

Hello all Thanks for answering my previous questions. I am making perovskite LED and intend to use PEIE on zinc oxide layer as ETL. But I am not sure what version of PEIE to us. There is the one...

08 November 2020 5,710 3 View

Zno NPs seperation?

Thanks a lot for your answers. I have one more question: after synthesizing ZnO nanoparticles , I am not able to separate from the original solution (dispersion actually). The recipe is as...

23 October 2020 9,857 8 View

How to do PBABr synthesis?

I am following this recipe for PBABr synthesis. I added HBr (48 wt % in H2O) to Methanol and PBA solution at 0 degrees celsius. But after 2 hours of stirring I am not able to see precipitates. I...

08 October 2020 6,485 4 View

ZnO and PBABr synthesis?

Hello all, I want to synthesize ZnO nanoparticles and PBABr in my lab for my LED project. I know the method, but I am not sure how can I check(even visually) that I have arrived at the correct...

27 September 2020 5,334 7 View

MoO3 RF Sputtering?

Hello all, I have to do RF sputtering for MoO3 for my LED project. But I have come across many recipes for reactive RF sputtering of MoO3 ,using Mo as a target and Oxygen as the reactive gas But...

16 September 2020 5,222 2 View

How teachers are engaging their students at the time of COVID-19?

Most of the countries are still not opened the school, college and universities because of COVID-19. It is spreading rapidly. In such situation, what are the roles playing by teachers/lecturers to...

14 July 2020 5,998 30 View

Can we define the external quantum efficiency as the (number of photons emitted/ electrons injected) for n LED device?

I have come across the definition for EQE as the number of radiative recombination events out of the total number of recombination events in the LED. But is it safe to say that EQE = number of...

07 July 2020 3,023 1 View

How to obtain corrected PL spectrum?

Hello all, I am intending to measure the PL spectra for my perovskite samples. How can we obtain a corrected PL spectra in the spectrometer, independent of the photoresponsivity of the silicon...

29 June 2020 7,298 5 View

Cordycepin therapeutic potential to combat Covid virus disease ?

28 April 2020 2,943 2 View

How to model Type 1 collagen structure for finite element analysis ?

I have started a project in which stress distribution in Type 1-collagen scaffold is to be modelled. I am thinking of using finite element analysis to model the structure and the loading...

07 February 2021 5,487 3 View

How to create a scaffold by using the particle leaching process?

In the leaching process,Why does NaCl settle despite sieving? How can we understand how much solvent the system needs? And, how can enhance the mechanical strength in this process and find the...

12 January 2021 5,679 2 View

How can I take an electrical conductivity test from a nanofibrous scaffold?

I have a nanofiber scaffold for tissue engineering. When I did the electrical conductivity test, the ohmmeter reports a wide range of values (from 300 kOhm to 20 MOhm). I placed the scaffold...

06 January 2021 2,232 1 View

How do I avoid sucking up electrospun scaffolds during cell culture?

Hi, I'm a PhD student working to develop electoconductive, electrospun scaffolds for cardiac tissue engineering applications. I have been seeding cells onto these scaffolds but having major...

04 December 2020 6,672 3 View

Is there any technique to reduce carbonate precentage in bone sample (bovine hydroxyapatite)?

Dear colleagues, I am a researcher working with bovine hydroxyapatite. I want to reduce the percentage of carbonate on the sample. Is there any suggested techniques for this? I am measured the...

19 November 2020 3,828 3 View

What is the best framework for measuring socio-emotional aspects in students' collaborative writing?

I would like to pursue my Phd and examine the role of diverse socio-emotional or environmental characteristics (e.g., efficacy, aptitude, anxiety, strategy, technology skills, and curriculum in...

01 February 2020 5,061 1 View

Gel made with Alginate 2.5% and gelatin 5% is dissolving with PBS?

Few minutes after adding PBS 1x to wash 3D printed scaffolds, the gel got all dissolved. Loads of papers use PBS to wash it and apparently they did not have any problem. Any advice? Did anyone has...

11 December 2019 2,733 2 View

PRGE31_Restriction site upstream of gRNA scaffold ?

I am new to plant biology, looking for a gRNA and a Cas9 expressing construct to transform dicot plants. pRGE31 hosts a gRNA scaffold sequence but can't find a restriction site upstream of the...

09 December 2019 3,275 3 View

Query regarding bioinformatics?

10 November 2019 3,257 1 View

How to solve early solidification which causes hanging web in electrospinning?

I want to make electrospinning scaffold with PLA/PCL/PMMA/Collagen with these methods: 1. I use chloroform:methanol 3:1 to dissolve PLA (mW 80.000, 2 wt%), PCL (mW 70.000, 3 wt%), and PMMA mW...

10 November 2019 4,013 3 View