We need to have a biotech business logo designed

We are seeking to explore creative logo options for CyGenica Ltd. a biotech company. The company is being rebranding, you may see our current website www.cycaonco.com We would 5 very different preliminary designs for consideration by the Founder. We have engaged a designer but would like other more creative options to choose from. All designs should be very preliminary and then one shall be chosen to be developed. Please note the following guidelines:

1. The designs should be primarily text-based and 2 D.
2. We like Blue with (maybe) a bit of green.
3. The Logo is for use on the website, corporate stationery, business cards and pop-up signs.
4. It should be presented with and without the strapline "Fast track molecular delivery"
5. The logo shall not be used for retail, we are strictly a B to B biotech company.
6. Please see attached the design work from the previous designer, note that we are seeking 5 options that are different from these.
7. Please see for ease of reference attached a sheet of various Biotech and Pharma logos.