How to make Escherichia coli BL21 CodonPlus (DE3)-RIPL chemically competent cells?

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Gromacs first step of minimization ?

I have face this problem anyone help me how to solve this issue ?which is below Fatal error: There are inconsistent shifts over periodic boundaries in a molecule type consisting of 78 atoms. The...

07 August 2024 2,598 1 View

Can I multiplex a mouse monoclonal and rat primary for IHC (mouse brain tissue)?

Hi all, I was just wondering if anyone has experience with multiplexing a mouse monoclonal primary and a rat primary. I'm trying to multiplex by incubating them in the same well but was told by a...

06 August 2024 9,710 1 View

Please inform me about the International Conference on Plant Biology?

Please inform me about the International Conference on Plant Molecular Biology, or Plant Biology, scheduled for December 2024, January/February, or March 2025.

14 July 2024 3,120 7 View

Abnormal data in in-vitro drug release study?

I'm doing in-vitro drug release study using dialysis bag method and collecting samples from the external medium at several time points, subjecting to UV-Vis spectrophotometry. But my absorbance...

14 July 2024 6,829 2 View

Are my cells contaminated with mycoplasma?

I suspect my cells are contaminated with mycoplasma. I fixed the cells with 4% PFA and stained them with DAPI. Below is the image I obtained. I don't observe the typical small, rounded DAPI foci...

11 July 2024 7,786 3 View

Is there any standard format or protocol for plant photo-plate creation?

need to know protocol for photoplate creation, styles, etc

11 July 2024 8,321 2 View

Black dots like contamination in my cell cultures. What are they?

There are black dots that seem like contamination in my corneal endothelial cell cultures. Some of the cells appear unhealthy and are enlarged. The black dots are more prevalent around these...

11 July 2024 4,829 0 View

Unification of General Relativity and Quantum Mechanics is possible ?

How can anyone develop a theoretical framework that successfully unifies general relativity and quantum mechanics? how this new theory should accurately describe gravitational interactions at...

10 July 2024 5,040 8 View

What is the most simple language and character in the world?

Dear colleagues, As well known, we can deliver messages in different languages and characters, including Chinese, English, Latin, binary and decimal codes (if with a converter) and many other...

08 July 2024 5,422 13 View

Radial Basis Functions Based Differential Quadrature Method for One Dimensional Heat Equation "required matlab code" and provide code in discription?

I am able to submit the code documents. Although my graph is 1, I would like to be in the 6E-05 graph range. Please, someone correct the error.

08 July 2024 5,770 0 View

Is there any way to quantify bacterial and fungal cells in their mixed culture?

I am working in fungal fermentation of soybean meal and there is bacterial growth in them at times. I am trying to quantify fungal cell counts and bacterial cells; but I haven't been able to do at...

07 August 2024 7,535 4 View

Why activated CAR-Jurkat cell could not kill targets?

Previously when I co-coluture anti-CD19(FMC63) CAR-Jurkat with Raji with E:T=5:1, Jurkat can eliminate Raji in 24h. However, when I test another CAR construct, although I can dectect totally CD69...

06 August 2024 641 2 View

How much total RNA concentration to be extracted from sorted plasma cells from bone marrow of C57BL/6 mice for RT-PCR ?

i have sorted anti-NP specific plasma cells from bone marrow of C57BL/6 mice at certain times after immunization with variable counts and isolated total RNA using TRIZOL method for RT-PCR using...

05 August 2024 8,835 1 View

How to use Density Functional Theory to calculate carrier mobilities of solid system?

Hello, everyone. I have tried to determine carrier motilities of some materials, by Density Functional Theory, using Quantum ESPRESSO. There are a few methods to do it, like a package called...

04 August 2024 8,894 1 View

Does long-term culture of murine Monocytes result in macrophage differentiation?

Hi, I am isolating monocytes from the bone marrow using the Mouse Monocyte EasySep kit. I want to treat these cells and monitor expression of specific markers over the course of 10 days. I will...

04 August 2024 7,282 2 View

How can I get my Granzyme B flow cytometry stain to be consistent?

I have used PE and PE-Dazzle 594 fluorochromes and have managed to get NK cells to properly show GranzymeB expression after 4 hr PMA/ionomycin stimulaton, but for some reason my CD8 cells in the...

01 August 2024 7,677 2 View

What is the best practice for resuspending cell pellets during competent cell preparation (both electro and comp)?

I'm fairly new to making homemade comp cells and have done so with some mild success. What is generally an acceptable way of resuspending comp cells during wash steps? I've been told to swirl the...

31 July 2024 8,309 0 View

Best mask design for metal deposition aiming build a Perovskite solar cell device?

What types of mask designs for metal deposition, to be used in a PVD system, are best suited for perovskite-based solar cells?

31 July 2024 4,835 3 View

How to culture and maintain Lx-2 cells?

Hi there! I recently started working on Lx-2 cells. When I thaw the cells, they start attaching within few hours but later in about 2 days they started rounding and dying. I used DMEM+2% FBS...

31 July 2024 3,893 0 View

How to treat monolayer culture cell line with essential oil?

Hi all, may I ask you for advice about treating monolayer culture cell line with essential oil. Due to the hydrophobic character of the oil, I am concerning how can it equally affect to all the...

31 July 2024 5,301 2 View