Does anyone know if commercial plant membrane vesicles are available?

More Weiqing Zeng's questions See All

Does a Banach algebra version of "the sum of a closed subspace and a finite dimensional subspace is always closed" exist?

In the setting of Banach spaces, it is well know that if $M$ is a closed subspace of a Banach space $X$ and $F$ is a finite dimensional subspace of $X$, then $M+F$ is closed. Does a Banach...

16 July 2024 8,437 4 View

For 3d transition metal elements, is there a mathematical expression for the energy E in their hard X-ray absorption spectrum?

Only the absorption side is considered, and the fine structure of the extended side is not considered

05 July 2024 2,894 2 View

How to realize charge and discharge of in-situ batteries in PPMS? Is there any expert scholar who can give me some advice?

The difficulty lies in how to miniaturize the battery. The sample holder is only 6.5mm, which means that the width or height of the battery cannot exceed 6.5mm (the height is about 3cm). I hope...

05 July 2024 8,141 0 View

Why does the L2 edge in NiO's SXAS data split into two peaks?

Please ask experts to help answer, why the NiO L2 edge data will split into two peaks in SXAS.

01 May 2024 797 1 View

A staining solution that stains dead or living cells in tumor tissue ?

A solution that specifically stains dead or living cells in tumor tissue to help us calculate the area of dead or living cells.

22 April 2024 7,080 0 View

Mixed clostridioides difficile colonies by CRISPR genome editing?

We are genome editing Clotridioides difficile via CRISPR system. However, we met some difficulties generating a clean knock out. The colonies after editing showed both WT and KO PCR bands as the...

20 April 2024 7,927 2 View

What causes these spots on this tomato fruits?

There are many spots on the tomato fruits, the size of a pinhole in the middle, and sometimes there is a white ring outside. Please help us and identify this pathogen. Thanks a lot!

01 April 2024 4,895 2 View

Can people help me find Chinese version of Everyday Stressor Index?

Heyy, anyone who know that how to get the Hall’s (1990) Everyday Stressors Index (ESI)instrument, because I need it for thesis purpose but I can't find ways to purchases it online . I saw that...

29 March 2024 7,285 0 View

Why does the LSV curve show a linear decrease in current density at the end ?

When the LSV test is conducted with the prepared material, the image of linear decline will appear at last, but this problem will not occur when I change to other materials (such as new foam...

04 January 2024 9,718 5 View

How to culture epicardial cells derived from mouse embryonic hearts in vitro?

Thanks to "In Vitro Culture of Epicardial Cells From Mouse Embryonic Heart", I have cultured primary epicardial cells, but after continuing to culture and passage, I found that the proliferation...

19 November 2023 4,289 1 View

Hello Everyone ! I'm looking for a good journal to publish my manuscript with low publication cost?

I am Looking for a Science Journal with good impact factor and low publication cost to publish a review paper. Your suggestions would be appreciated.

06 August 2024 6,796 3 View

Why does my protein refolded to beta sheet during thermal denaturation analysis?

Hi! So i attempted to understand a novel protein behavior towards heat application by analyzing its secondary structure change. I subjected the protein to a thermal denaturation analysis using...

06 August 2024 1,989 3 View

How do soil microflora interact with plant roots and influence plant nutrition, health, and productivity?

06 August 2024 9,618 3 View

Are there instances where molecules with larger molecular weights exhibit greater mobility than those with smaller molecular weights?

Hi, I know that low molecular weight (MW) molecules generally tend to have higher mobility, while high molecular weight molecules tend to have lower mobility. However, in my experimental...

06 August 2024 1,495 2 View

Weak DAPI staining after immunohistochemistry - how to improve?

After immunohistochemistry of previously fixed in PFA and EtOH and then frozen 20 μm sections of zebrafish brain, DAPI staining is very weak (right) compared to the same sections stained without...

05 August 2024 9,637 2 View

Low-yield gel extraction problem?

I am having an issue with my gel image where my PCR product is not appearing very bright on the gel. When I perform gel extraction, the A260/280 purity value is very low. I used the Qiagen gel...

05 August 2024 9,798 3 View

For an in-vitro drug release study, what molecular weight cut-off (MWCO) dialysis bag is required for a 117 kDa protein?

kindly reply me. Thanking you in advance.

05 August 2024 7,727 4 View

How to isolate lymphocytes from mouse spleen?

I have tried several times to isolate lymphocytes from mouse spleen, but all attempts have been unsuccessful. I tried most available protocols. I used different dissociation media (HBSS with Ca...

04 August 2024 9,913 7 View

Any idea about 'International Research Journal of commerce , arts and science? Is it a UGC listed journal?

Any idea about 'International Research Journal of commerce , arts and science? Is it a UGC listed journal? Kindly advice

04 August 2024 7,367 3 View

Are authors sowing for scientific Journals to be reaping the benefits? We are charged for publication but we offer free peer review services, why?

As authors and academic writers, we usually prepare our manuscript using our own resources. We submit these manuscripts to scientific Journals for peer review and publication sometimes at a fee....

03 August 2024 7,304 2 View