Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View

Please. Could you help be in implementing Fractal Discrete Cosine Transform algorithm in Matlab?

I do need the Matlab code of Fractal Discrete Cosine Transform (FDCT). Can anyone who has already implement this code, help me with the implementation of this transform?

24 February 2021 5,602 2 View

What is the reason film thickness increased?

what is the reason film thickness increased when increased doping concentrations give some reasons The measured film thickness is 156, 282, 394, 548 and 681 nm for 0, 1.5, 2.5, 3.5, and 4.5 wt....

17 February 2021 8,987 5 View

Queries regarding the rain flow counting algorithm?

02 February 2021 9,790 2 View

Why does my MTT Assay remain in purple color and does not change to yellow?

19 January 2021 5,098 4 View

How to determine the genetic potential of the genotype in terms of fruit size and weight?

In addition to genetic and environmental factors, fruit size is also influenced by crop load, rootstock, orchard planting system/tree training system, pollination, water and nutrient management,...

13 January 2021 9,309 4 View

Is it possible to ligate two restriction ends those have no complementary bases?

In my lab,we are trying to construct a control plasmid. So we have to remove the insert gene which has two restriction ends:one is XhoI and other one is Hind III.So after double digestion we want...

01 January 2021 3,271 4 View

staircase ramp using VPWL in cadence ?

how to generate staircase ramp using VPWL signal in cadence ?

27 December 2020 1,521 3 View

Is it machine learning models that have replicability capability?

We are doing the prediction of soil nutrients using spectral information by applying machine learning models. More than 300 soil samples were used from one district for analysis. We got the...

21 December 2020 9,663 3 View

How can I analyse and compare crop yield under different irrigation methods?

I have to compare yield parameters of a tree crop grown under three irrigation methods. But these systems are already established separately in three adjacent fields. Since I can not follow a RCBD...

21 December 2020 3,065 5 View

Are protein samples in SDS compatible with ELISA?

I have used an AllPrep DNA/RNA/Protein Mini Kit QIAGEN kit to extract RNA and protein from my samples. At the end of the protein purification, I resuspend my protein in 5% SDS. Will these samples...

28 February 2021 7,370 3 View

How to calculate the crystallinity of cellulose film?

27 February 2021 2,753 4 View

How to replicate the well conditions of a crystal hit with 20%(w/v) isopropanol?

I had a crystal hit in a well with 0.1M HEPEs pH 7.5, 10%(w/v) PEG 4000, and 20%(w/v) isopropanol. Why is isopropanol in w/v here if it's just solvent? How do I recreate this well condition?

25 February 2021 9,761 1 View

How to reduce static electricity of powder after lyophilization?

I am working on synthesizing and then purifying peptides using the SPPS system. After purification of the peptide, the peptide powder is obtained using a freeze dryer. When measuring the powder,...

22 February 2021 10,099 5 View

Does anyone have a working Guanidine Hydrochloride purification protocol for synthesized ssRNA?

I am trying to in vitro transcribe some fluorescein labeled ssRNA. And I want to purify the ssRNA from the free NTPs and the enzymes (RNA polymerase and DNase I). Due to the characteristic of the...

18 February 2021 4,392 4 View

Purification of proteins from baculovirus-infected insect cells?

18 February 2021 6,665 6 View

Agarose gel purification pre MinION sequencing?

Dear all, we performed an agarose gel purification with MinElute kit (QIAGEN) to extract bands between 3500 bp and 6000 bp for further sequencing with MinION. After the purification process,...

16 February 2021 5,178 1 View

What is the difference between Q sepharose column and DEAE Sepharose column?

I am working on protein (lipase enzyme) purification. After using the Sephadex G-25 fine column, which column (Q or DEAE sepharose column) should I use? What are the buffers should I select? Thank you

16 February 2021 6,921 5 View

What is the optimal method to prepare a controlled porosity osmotic pump (CPOP) tablet for scanning electron microscopy?

In order to assess the shape and size of pores formed by dissolving the pore former in the semipermeable membrane structure, SEM images are needed. Cellulose acetate was used in the coating...

15 February 2021 6,135 3 View

Why samples do not run in resolving gel?

Hello everybody, I have a problem with SDS-PAGE and I do not know why my samples stop at the top of the resolving gel and they do not run through it. The percentage of gel is 15% and the size of...

14 February 2021 9,116 6 View