High quality tools for innate immunity research and drug discovery
Technical information for the Phytotitre natural extract libraries
Phytotitre product flyer



Technical information for the Puretitre natural compound library
Puretitre product flyer




Recombinant protein technical data sheets
Recombinant CD14 technical data sheet (TDS)





Safety First - Safety information for Phytotitre projects
Phytotitre safety information - please read before use
Project guides and outlines (laboratory projects)
Antibiotic drug discovery project outline 
Cancer biology drug discovery project outline 
Enzyme inhibitor drug discovery project outline 
Immunology drug discovery project outline 
Project guides and outlines (data analysis "dry" projects)
Project guides for data analysis projects in Microbiology 
Project guides for data analysis projects in Cancer Biology 
Method sheets for laboratory projects
Method Sheet 01 - Defrosting, opening and re-sealing the Phytotitre or Puretitre kits 
Method Sheet 02 - Preparing a bacterial culture for screening in 96-well format 
Method Sheet 03 - Plating bacterial cell cultures for screening with the Phytotitre kit 
Method Sheet 04 - Challenging bacterial cultures with the Phytotitre extracts 
Method Sheet 05 - Measuring bacterial growth by plate-based absorbance assay 
Method Sheet 06 - Plating mammalian cell-lines for screening with the Phytotitre kit 
Method Sheet 07 - Challenging mammalian cell-lines with Phytotitre extracts 
Method Sheet 08 - MTT assay for mammalian cell metabolic activity 
Method Sheet 09 - Crystal violet assay for mammalian cell biomass 
Method Sheet 10 - Resuspending solvent-free extracts for further experimentation 
Method Sheet 11 - Preparation of dose curves from individual extracts 
Method Sheet 12 - Plating macrophages for cytokine production assay 
Method Sheet 13 - Challenging macrophages with Phytotitre extracts and LPS 
Method Sheet 14 - Measuring TNF-α secretion using the L929 cell bioassay 
Method Sheet 15 - Screening for inhibitors of the enzyme β-galactosidase 
Method Sheet 16 - Using a microplate reader to measure absorbance 
Method Sheet 17 - Data analysis and chart plotting (bacterial growth data) 
Method Sheet 18 - Data analysis and chart plotting (mammalian cell viability data) 
Method Sheet 19 - Data analysis and chart plotting (L929 cell bioassay data) 
Method Sheet 20 - Data analysis and chart plotting (enzyme activity data) 
Method Sheet 21 - Statistical analysis of screening data 
Method Sheet 22 - Statistical analysis of dose curve data 
Method sheets for data analysis projects
Method Sheet 50 - Introduction to the Phytotitre and Puretitre libraries 
Method Sheet 51 - Basic data handling using Microsoft Excel 
Method Sheet 52 - Background correction of absorbance values 
Method Sheet 53 - Calculation of bioassay ‘Z-prime’ score 
Method Sheet 54 - Calculation of mean and SD of repeat experiments 
Method Sheet 55 - Mapping experimental data to compound maps 
Method Sheet 56 - Drawing appropriate charts of experimental data 
Method Sheet 57 - Adding error bars to charts 
Method Sheet 58 - Identifying ‘hits’ from a compound screen 
Method Sheet 59 - Basic correlation analysis 
Method Sheet 60 - Basic Student’s T-test using Microsoft Excel 
Method Sheet 61 - Exploring the structural features of Puretitre compounds 
Method Sheet 62 - Calculation of IC50 by 4 paramater curve fitting using Excel 
Datasets for data analysis projects in Microbiology
Screen of the Puretitre library for inhibitors of growth of Micrococcus luteus 
Screen of the Puretitre library for inhibitors of growth of Escherichia coli DH5-alpha 
Screen of the Phytotitre library for inhibitors of growth of Staphylococcus aureus 
Screen of the Phytotitre library for inhibitors of growth of Escherichia coli DH5-alpha 
Datasets for data analysis projects in Cancer Biology
Screen of the Phytotitre library for inhibitors of growth of the A2780 tumour cell-line 
Screen of the Phytotitre library for inhibitors of growth of the HepG2 tumour cell-line 
Screen of the Phytotitre library for inhibitors of growth of the MCF-7 tumour cell-line 
Screen of the Phytotitre library for inhibitors of growth of the PC3 tumour cell-line 
Notice for Students and Educators
Disclaimer: These resources are provided for educational purposes only. The user’s University Supervisor remains the Principal Investigator and the sole party responsible for the safe conduct, risk assessment, and ethical oversight of all laboratory work. Caithness Biotechnolgies Ltd. accepts no liability for any injury, loss, or damage resulting from the application of the advice or protocols provided herein.