How to analyze bacterial inhabitation?

Hello, everyone. I found the bacteria I cultured can be inhabitated by another bacteria when I culture then together in the plate. Now, I want to analyze which metabolite contribute to the...

11 December 2018 4,934 2 View

Is there any reference about how may sample do you need for metabolomics analysis?

For metabolimics analysis, sample repeat is necessary, but how to know how ,any samples do I need is enough for analysis? For example, microorganism, plant or tissue?

06 July 2018 5,006 3 View

Can I use relative quantitative data analysis of NMR for multiomics analysis?

When I analyze NMR data for metabolomics combined with other omics, can I use relative quantification data but not absolute quantification to do multi-omics data analysis?

06 July 2018 764 5 View

Anyone know the composition of beef extract and yeast extract?

anyone know the composition of beef extract and yeast extract

31 December 2017 2,956 5 View

How lactic acid bacteria export lactic acid from cell into medium?

pH of medium would be decreased, anyone know how cell export lactic acid into medium?

11 December 2017 2,932 0 View

How to avoid sample loss when I use freeze dryer?

When I use freeze-dryer, after freeze at -80C for 5 or 7h, drying it but there are always sample loss after drying, some of the dried sample get out of the glass tube. How to avoid the loss?

02 March 2017 7,954 7 View

Derivatization of amino acids analyzed by GCMS?

01 January 1970 2,379 11 View

How to analyze glyoxylic acid, pyruvic acid with GC MS

I want to analyze TCA cycle, but pyruvic acid, glyoxylic acid cannot be detected. My GC MS is 7890A-5957C, HP-5MS column, MTBSTFA as derivatization reagent, Anyone can give some advice?

01 January 1970 1,224 3 View

Anyone know muma package in R language?

I am a beginner in R language and I want to analyze metabolomics data with R. Recently I found an R package "muma" which is for metabolomics data analysis but I don't know how to use that package....

01 January 1970 9,141 6 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View