Does anyone have knowledge/evidence of the presence or absence of vapor collections in the domes of in situ ventriculoperitoneal shunts or reservoirs?

What precautions should be taken while handling S. aureus enterotoxin Type B in the lab?

I would like to understand potential safety concerns while handling SEB in the lab. Especially while working in animal house facility. Would like to know precautions for handling. Sigma MSDS...

07 August 2024 6,034 3 View

Why do i have a weak plasma and no coating during rf sputtering?

I have been getting a low plasma and no coating while doing rf sputtering of copper doped ZnS using a power of 140 watts and at pressure of 6.5x10-3 Mb.

07 August 2024 4,526 4 View

How to assess the osmotic power of a substance?

Hello, I suspect that a molecule I am using is causing bacteria to experience osmotic shock. What chemical properties should I look for to compare this capability with those of other substances?...

06 August 2024 977 1 View

How to understand this crystallographic phenomenon of low temperature crystals in zeolite?

During low-temperature testing, new diffraction peaks that appear could be indicative of several phenomena. In one of our tests, we observed notable new peaks around 40° and 45° in a specific...

06 August 2024 726 3 View

Do some Staphylococcus aureus strains have in vitro antimycobacterial activity ?

Some Staphylococcus aureus strains Inhibit the growth of Mycobacteria in Mueller Hinton Agar medium containing 10% OADC. Do some Staphylococcus aureus strains have in vitro antimycobacterial activity?

29 July 2024 10,023 2 View

How do we pick data for determination of Validation Acceptance Criteria?

Hello, colleagues! There is commenting open for new upcoming edition of USP 1033. Validation target acceptance criteria is now different from what it used to be and it doesn't include Cpm....

23 July 2024 7,292 3 View

When I am trying to distill triethyl amine while drying it over calcium hydride. How do I design the setup to let hydrogen escape without losing NEt3?

I am new to research. The boiling point of triethyl amine (NEt3) is 89 degrees centigrade. I am skeptical that when I will let the hydrogen escape which is getting generated in situ, I will also...

21 July 2024 7,284 4 View

Optimal condition for depositing FTO target 95:5% using sputter technique?

Hello I want to know about the sputtering condition of depositing FTO from target 95:5%. I tried with RF sputter in pressure 2.5Pa and 100 sccm Ar at room temperature but it showing no...

21 July 2024 1,680 2 View

Does anyone notice the tumor regression impact of Hepa1-6 cells in HCC orthotopic mice model?

To establish an orthotopic HCC model, C57BL/6 mice (male, 6-8 weeks) were orthotopically implanted with 3x106 Hepa1-6 cells (Over-expressed with a human gene) in 20uL Matrigel into the left lobe...

18 July 2024 9,177 2 View

What could be the possible reason that sintering of polycrystalline diamond fabricated with tape casting has suddenly started failing?

I make polycrystalline diamond with tape casting followed by HPHT sintering. When i sintered the samples up till May, the sintering was good. When i sintered the samples in June and July at the...

16 July 2024 3,212 5 View