4 03, 2025

Unexpected consequences: growth factor cross-contamination in mammalian and E. coli expressed growth factors

2025-03-05T17:12:06+00:00March 4th, 2025|animal-free, Blog, protein science, quality, Resources|

At Qkine we have repeatedly highlighted the need for stricter process and quality control in the manufacture of high purity in recombinant growth factors to prevent cross contamination with related growth factors. Contamination with other bioactive proteins leads to lack of inter and intra-lab reproducibility, or perhaps most concerningly incorrect scientific conclusions.

14 01, 2025

Protein tags, why and why not?

2025-01-14T13:00:28+00:00January 14th, 2025|animal-free, Blog, protein science, quality, Resources|

Protein tags are useful tools for affinity purification and other biochemical applications, but unnecessary tagging of proteins can cause issues. Read our latest blog and discover - Protein tags, why and why not?

3 12, 2024

Pep Talk December 2024

2024-12-03T14:38:23+00:00December 3rd, 2024|News, newsletter, Resources|

In our final newsletter of 2024, we highlight our collaboration with cutting-edge cell-line specialists inscreenex to define TGF beta family activity; celebrate efforts to unite the UK stem cell community and if you are quick, you can benefit from our end-of-year promotion and receive a third free growth factor when you buy two products, a great chance to stock up. 

15 11, 2024

Pep Talk November 2024

2024-11-16T11:11:23+00:00November 15th, 2024|Awards, News, newsletter, Resources|

In this edition, we are excited to announce two new distributor agreements, our products will now be available in Türkiye and SLS will be making our products more accessible in the UK and Ireland. Our latest offer, buy 2 get 1 free and other news, the launch of our high quality food grade range.

23 10, 2024

Pep Talk October 2024

2024-10-23T13:49:34+00:00October 23rd, 2024|Awards, News, newsletter, Resources|

In this edition, we are excited to announce a price freeze moving into 2025, our win of Scale-up of the Year in the Cambridge Business Awards. We also share our latest hematopoietic stem cells blog, new products IL-2 and activin E PLUS and a new application note on growth factor stability.

12 09, 2024

Pep Talk September 2024

2024-09-12T13:24:28+00:00September 12th, 2024|newsletter, Resources|

In this edition, we are excited to announce our complete transition to animal origin-free (AOF) manufacturing for all recombinant proteins. This ensures the highest quality and consistency for researchers relying on these critical components. Additionally, discover our latest application notes featuring AOF BDNF and GDNF for neural differentiation and thermostable FGF-2 and TGF-β1 for weekend-free iPSC culture.

16 08, 2024

Pep Talk August 2024

2024-08-27T14:46:27+00:00August 16th, 2024|newsletter, Resources|

In this edition, we are excited to discuss our conversations at ISSCR 2024 about the stem cell science supply chain and impact of growth factors and cytokines quality on reproducibility, including how to integrate new technologies, such as controlled-release and thermostable proteins. We are also pleased to announce our collaboration with the superb team at StemCultures, launch high quality food grade PDGF-BB, publish a new application note focusing on dopaminergic neuron differentiation and welcome to our team Paul Grafham, CFO and Rob Nixon, Commercial Director.

30 07, 2024

Pep Talk July 2024

2024-07-30T12:21:46+00:00July 30th, 2024|newsletter, Resources|

In this edition, we are excited to announce our complete transition to animal origin-free (AOF) manufacturing for all recombinant proteins. This ensures the highest quality and consistency for researchers relying on these critical components. Additionally, discover our latest application notes featuring AOF BDNF and GDNF for neural differentiation and thermostable FGF-2 and TGF-β1 for weekend-free iPSC culture.

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