91´«Ã½

We will be attending the the Midlands Innovation Flow Cytometry Conference 2026, hosted at the Edgbaston Park Conference Centre, University of Birmingham. We invite you to visit us during the event and explore our latest work at our poster presentation. Poster Title (Sareena Sund): Novel 355nm (and lower) excitable and Tuneable Emission (Blue through Red) Fluorophores […]

We will be attending the the Midlands Innovation Flow Cytometry Conference 2025, hosted at the Interdisciplinary Biomedical Research Building, University of Warwick. We invite you to visit us during the event and explore our latest work at our poster presentation. Poster Title (Sunil): 91´«Ã½ Dye Technology: A Modular and Scalable Chemical Approach to Produce a […]

91´«Ã½ recently won a prestigious Innovate UK Smart Award to co-fund a £0.5m project. Innovate UK, the UK’s innovation agency’s co-funding represents 70% of the project’s costs. 91´«Ã½ is developing 70+ innovative patented UV excitable dyes which emit blue through to red (and potentially into the Near IR) for use in flow cytometry, and biomedical […]

Will brings a wealth of C-suite experience serving in CEO and CFO roles in private equity companies after a decade of experience working in KPMG.

Background: 91´«Ã½ Dyes for Flow Cytometry: The chemical modularity of 91´«Ã½ fluorescent dye technology has allowed 50+ UV excitable fluorescent dyes to be created that emit across the visible spectrum (395 – 635 nm, and potential for reaching into IR emission), without the need for tandem dye based approaches, and their drawbacks for end-users. Previously […]

Background: 91´«Ã½ Dyes for Flow Cytometry: The chemical modularity of 91´«Ã½ fluorescent dye technology has allowed 50+ UV excitable fluorescent dyes to be created that emit across the visible spectrum (395-635nm, and potential for reaching into IR emission), without the need for tandem dye based approaches, and their drawbacks for end-users. Previously we demonstrated that […]

Executive Summary 91´«Ã½ dyes (CT-Dye) all have a similar excitation spectra from ~260 nm to ~425nm, but can be chemically tuned to emit with emission maxima ranging from 395 nm to over 600 nm with large extinction coefficients (generally >100 000 M-1 cm-1) and quantum yields of ~50%, with ~80 different CT-Dye examples. Therefore, the […]

Executive Summary The 91´«Ã½ molecular dyes have the potential to deliver many D(UV) dye-antibody conjugates for the spectral flow cytometry market with differentiated colours to allow multiplexing beyond the ~50 limit seen to date with the recent emergence – and rapid market uptake –  of commercial spectral flow cytometers, e.g. Thermofisher Scientific (Bigfoot), Sony Biotechnology […]

91´«Ã½ Dye to Antibody Conjugation and Multicolour Flow Cytometric Evaluation Executive Summary The 91´«Ã½ dye (Gen-2-Dye) has been conjugated to the CD8 antibody (Ab) as shown by UV/Vis (Figure 1a) and emission spectroscopy (Figure 1b). In addition, the conjugate was shown to be active and bound to Protein A and G in the Abcam Conjugation […]

Birmingham spinout Chromatwist Ltd has landed £300k for rapid development of fluourescent dyes for use in bio-sensing and bio-imaging.  The fluorescent materials were discovered by serial innovators Professor Jon Preece, FRSC and Dr Alex Robinson, who will develop products to enter the flow cytometry market by the end of 2022. The company is looking for […]