What could be the reason of no transformation using a ligation mixture?

Recently, I have been working with some genes contained in pBlueScript II SK (+) and that contain XhoI and XbaI restriction sites. I would like to clone them in PET28a. For instance, the...

22 June 2020 3,474 5 View

What is the best journal for gynecology?

Some of us my be biased because of the journals we have around us, but by any scale other than impact factor, what is the best journal?

31 May 2020 4,089 3 View

What factors influence user acceptance of affective technologies?

Affective technologies are the interfaces concerning the emotional artificial intelligence branch known as affective computing (Picard, 1997). Applications such as facial emotion recognition...

08 May 2020 2,973 9 View

Are there zinc-CYS parameters in CHARMM files? of has anyone generated these parameters?

06 March 2020 5,939 2 View

How do I run a successful digestion for a large plasmid with GC Repeats, hairpins, and potentially other secondary structure?

I am doing some cloning and am having some issues with both sequencing my 22kb plasmid and running digestions with it. I sent my plasmid in for sequencing and got terrible results, but...

02 July 2019 1,506 3 View

How to assess machine learning tools in eCognition Developer version 9.3.2?

How to assess machine learning classification tools in the latest release of eCognition Developer 9.3.2.

17 September 2018 8,963 1 View

I am looking for a simple basic description of a system within systems theory used to describe an organisation?

I have studied systems theory in the more complex mathematical version and have a handout in Dutch describing an organisation as a system with the primary process and two kinds of feedback loops....

15 April 2018 6,746 2 View

Any observation of Bactrocera oleae controled by Macrolophus predator ? ?

Lot of Macrolophus this year on Bactrocera oleae in south France.

26 July 2017 6,782 19 View

Preparation of spheroids for microscopic analysis

I'm using HepG2 to form 3D HepG2 aggregates with alginate, to confocal microscopy analyzes. However, I have difficulty to maintaining the spheroids after fixation and all procedures of incubations...

24 July 2017 478 1 View

Does anyone work with esophageal cell line immortalized with hTERT ?

22 June 2016 3,575 3 View

RIA. How to measure?

When you use RIA, with a control the unknown sample with antibodies, you bare in mind the binding sites of the antibodies. However you still need to measure labelled antigen (radioactive) and not...

28 February 2021 2,133 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

EMSA troubleshooting. Protein-DNA complex not migrating, cold probe lane with multiple bands. Can anyone help?

I'm running an EMSA to show the DNA binding activity of recombinant proteins versus the Wild type. Previous assays run by my research group using a different test system show the protein-DNA...

24 February 2021 8,325 1 View

What is the proper in vitro culturing method to get information about the activation of innate immune cells by VLPs?

Dear All, I am interested in studying the response of immune cells against virus-like particles (VLPs). I used the PBMC in vitro assay and treat it with the VLP using PHA as a positive ctrl while...

16 February 2021 1,337 2 View

Why does flow deformation occur at the test line and control line on nitrocellulose membranes (LFIA)?

I use 1% BSA in 10 mM phosphate buffer (pH 7.4) solution when striping my nitrocellulose membranes with antigens and antibodies. However, I always observe deformed flow when my sample or running...

16 February 2021 4,224 3 View

Can the viability assays (ex: MTT/CCK-8) measure cell proliferation? or are they solely viability assays?

I want to conduct a proliferation assay to test a chemotherapy combination on a cancer cell line. At first, I thought about the MTT assay. But now, all sources are saying that these do not measure...

14 February 2021 3,142 7 View

GST assay in microplate?

I'd like to know if anyone can provide me with a protocol for traditional GST enzymatic assay (with GSH and CDNB as substrates) in a 96 well microplate, for cell line and/or C.elegans...

11 February 2021 1,328 3 View

What lysis buffer is compatible with Bradford assay?

Hello! I am planning to use Bradford assay to measure protein content in PBMCs lysates. The problem is that Bradford assay doesn't seem to be compatible with Tris-based buffers or SDS. Are there...

10 February 2021 1,797 5 View

For PC-3 cell line. How long before irradiation do I have to synchronize my cells to G0/G1?

I am trying to do a clonogenic assay for PC-3 after irradiation. I have to synchronize my cells by serum starvation but there's a optimal time I have to do that before irradiation. been looking in...

09 February 2021 9,480 1 View

What is best technique to quantify necrotic cell death of specific cell populations?

I currently using FACS (Aurora Cytek) to quantify necrotic Gr1+ cell death from the spleens of immune competent mice. I target Gr1+ cells in the spleens of tumor-bearing mice using a photodynamic...

08 February 2021 733 6 View