Total Chlorophyll value higher in stress plants?

Hi all, Recently i estimated Chlorophyll in mangroves plant under 2 weeks of non-essential metal.My result is showed different attitude that as concentration higher,chlorophyll also higher( chl...

01 February 2019 4,407 4 View

Mangroves leaves area formula?

I want to estimate leaf area of Mangrove plant.For calculation i have seen same formula but different factor number(I think it is factor) like, A = L x W x 0.75. A = L x W x 0.55 so i need...

01 February 2019 8,571 1 View

Extinction coefficient required?

I measure Poly phenol Oxidase (PPO) by Mayer 1965.Now for calculation i required extinction coefficient for poly phenol oxidase? So please share. i have seen so many papers but did not find...

08 September 2018 5,140 0 View

Book name required?

For my enzymatic and non enzymatic antioxidant like Catalase,peroxidase,Glutathione etc in plants required any book(online PDF or purchase) in which I get all information +Assay protocol...

01 February 2018 6,839 0 View

I need help regarding calculation of antioxidant enzyme like catalase,Ascorbate peroxidase etc?

Dear all,I am stuck in calculation of CAT and APx activities in plants.I used SPECIFIC ENZYMATIC ACTIVITY formula.For CAT assay i used 100ul plant enzyme but for APx i used 40ul plant enzyme. So...

01 February 2018 9,220 4 View

Research paper required?

Heloo every one! I need help regarding to research paper/proposal on Long term abiotic stress on antioxidant activity in plants in different time interval. Please share

10 November 2017 8,425 4 View

Required Method in Enzomology book pdf.

i am again submitting my question regarding pdf or any form of documents of book.(I think my question has omitted from this page) Method in Enzymology volume 234 page # 270-285. I google it but...

07 August 2017 5,911 2 View

Standard value increase or decrease?

Heloo All.I am making H2O2 standard graph. My min.value (O.D)of Std.curve is 0.241and max.(O.D)is 0.349.where as my samples O.D (absorbance of spectrophotometer)are below then 0.241.so can I use...

07 August 2017 1,956 0 View

How can i calculate dilution factor(df)in my sample?

I have taken 2 mg leaves and crush in 5 ml solution.Actually i have to take 2 mg leave sample and 2 ml solution. So during calculation how can i calculate df in my formula. Smilarly if i add my...

06 July 2017 8,015 4 View

Is any one guide me how to calculate antioxidant activity?

02 March 2017 4,017 9 View

Buffer to disrupt platelet alpha granules for PF4 quantification?

Hello! I want to quantify by ELISA the secreted (from platelets poor plasma) and the non-secreted (from platelet lysate) PF4 before and after TRAP stimulation. I will use the ELISA from R&D...

03 March 2021 1,499 2 View

Buffer Exchange using column packed with sephadex G-25 effect on protein concentration?

Hello, If i am doing a buffer exchange for an antibody of 1mg/mL, does the elution lose protein in the process of buffer exchange? For example, if i flow through 500 uL of 1mg/mL sample, and...

03 March 2021 6,299 3 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 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

What do I do with DLS peaks that are from the buffer?

I'm looking at the aggregation of my protein sample using DLS. Unfortunately, my buffer (20mM HEPES) also results in a set of peaks. These are at approximately 1 and 1000 d.nm. The lowest peak...

01 March 2021 9,015 2 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

What is the most suitable resuspension buffer for TCA/acetone precipitated protein?

I need to extract protein from fermented carbon sources for Bradford assay. Most researchers experiencing insolubility of pellet in resuspension buffer. Please assist me to select most suitable...

26 February 2021 7,129 3 View

What urea buffer can i use for biotagged protein extraction from streptavidin beads?

Hi all, I have been doing research on biotagged LDB1 proteins in Mel cells. I purify the proteins using M280 streptavidin beads. The yield is very low so I've been trying to optimize it by...

24 February 2021 5,749 3 View

Cloudy/high background western blot - can anyone help me?

Hi everyone! I try to detect VDR protein (~48 kDa) using Western Blot. After SDS-PAGE using 10% MP TGX Stain-Free Gel from BioRad I transferred the protein onto an metOH activated PVDF membrane...

23 February 2021 6,266 3 View

How to prepare electrolyte of NaClO4 salt for Na-ion battery? Any problem with this salt?

Hello, I am trying to make anode for Na-ion batteries. I have no experience with preparation of the electrolyte for any batteries. NaClO4 salt are available and I am planning to use EC:PC as...

21 February 2021 8,132 1 View