Why is the calculation of fluorescence quantum yield involves refraction index of the solvent?

Hi why we are using refractive index of solvents when calculating quantum yield in solvent. What is the effect of refractive index to quantum yield?

17 January 2021 8,848 5 View

What is the best solution for counter electrode for perovskite solar cells at room conditions?

I'm investigating transparent counter electrode for FTO/PEDOT:PSS/MAPI3/PCBM layered perovskite solar cell. In my research lab, currently i have a glove box with N2 gas as a carrier. I'm goning...

21 December 2020 6,504 3 View

How Can I integrate DC Motor Dynamics into LQR Controller?

Hello dear academicians, I control my system with a LQR . My input (u) is torque produced by 3 reaction wheels. These wheels are connected to DC Motors. Reaction wheels inertias are already...

05 January 2020 2,702 12 View

Ethanol contamination during elution of cDNA with TE in RNA-seq library prep?

I am using NEBNext Ultra II RNA library prep kit for preparing libraries from bacterial samples. When the libraries ready, I did second Ampure bead purification for those have dimer peaks. During...

24 October 2018 8,971 2 View

Can anyone suggest free DNA sequence assembler software for Windows ?

Can anyone suggest free DNA sequence assembler software for Windows ?

18 October 2018 2,408 7 View

Which way is better for batch anaerobic reactor? Continuous nitrogen sparging or one time sparging?

I am trying to grow Bifidobacterium longum in a anaerobic reactor. I use MRS+ L-cysteine for the growth media (which is also regular growth media). I maintain anaerobic conditions with N2...

07 March 2018 9,449 7 View

No title

03 May 2016 3,513 3 View

Protein-aptamer gel electrophoresis help, please??

Hi, I have problems with running gel electrophoresis. I have tried agarose gel electrophoresis and native PAGE. I have two proteins, which have molecular weights of ~30kDa and ~180kDa and two...

03 March 2021 4,275 4 View

Gel electrophoresis result for total RNA samples, 1.5 Agarose gel was used, How to improve the integrity of RNA?

Gel electrophoresis, RNA degradation, RNA extraction from fresh tissue

02 March 2021 5,433 5 View

How to regulate SSCP temperature in simple PAGE?

I'd like to perform single-strand conformation polymorphism (SSCP) in my thesis, however I cannot control the temperature of the vertical PAGE since we are using the conventional tanks. Is there a...

02 March 2021 9,157 1 View

Why are my bands weird in this Agarose gel?

Can someone please give me some possible things that could go wrong? Here is my recipe: 0.5g Agarose 50 mL of TAE 1x 1 uL ethyl bromide. Gel was run at 100V for 1 hour. The buffer used is also TAE.

01 March 2021 9,952 3 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

How to classify strictly upper triangular matrices by similarity?

Let F be a field. Consider U, the set of n times n strictly upper triangular matrices in F. For X, Y in U, we call them similar if there exists some S, which is non-degenerate and upper...

01 March 2021 2,957 8 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 View

Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 View

How to find a correlation between coordinates in a curvilinear coordinate system?

Hello. I have a skewed elliptical coordinate system (I use alternative elliptical coordinates). And I need to determine connections between coordinates in order to fetch a covariance matrix of...

28 February 2021 364 3 View