摘要:
The present disclosure provides a device and a cell culture system comprising a substrate that generates significant chemical ion signatures adapted for cultυring stem cells. This disclosure further provides unique surface properties, such as surface wettability, along with defined polymer microspot environments in an array, for effectively supporting the propagation and differentiation of human pluripotent stem cells in vitro. Methods of cυlturing, maintenance, differentiating stem cells as well as reprogramming somatic cells into stem cells using the device and the cell culture system with the suitable substrates, along with suitable culture media, are also provided.
摘要:
This invention relates to a method of screening arrays of polymers having pre- determined surface energies. The polymer arrays of the present invention can be used to screen for microorganism adherence. More specifically the arrays can be used to screen for adherence of particular bacteria or fungi to particular polymers in the array. Furthermore, this invention relates to a method combining in-situ polymer synthesis with physico-chemical characterisation of the resulting polymer array and subsequent biological assays of bacterial or fungal adherence. This allows for high throughput screening and characterisation of candidate polymers which are not susceptible to bacterial or fungal adherence or which can be used to support bacterial or fungal adherence where such is required. The arrays can also be used to screen for inhibition or promotion of biofilm formation.
摘要:
The invention provides polymer particles that are obtainable by a method selected from emulsion methods, diffusion methods and evaporation methods carried out in the presence of surface-engineering surfactant which is one or more polymer that displaysa lower critical solution temperature,in aqueous media, that is between 10 to 90°C, this polymer being the polymerisation product of one or more monomer selected from polymerisable alkyleneglycol acrylate monomers and polymerisable alkyleneglycol methacrylate monomers. The polymer particles can be used in controlled release applications, such as flavour release applications, fragrance release applications and biomedical applications. The invention also provides a cell support matrix comprising the polymer particles.