Sökning: "Biology and Life Sciences"

Visar resultat 21 - 25 av 358 uppsatser innehållade orden Biology and Life Sciences.

1. 21. Optimization of two high-performance size-exclusion chromatography methods with diode-array detection for protein quantification and purity assessment

   Master-uppsats, Lunds universitet/Centrum för analys och syntes

   Författare :Camilla Lane; [2023]
   Nyckelord :Method qualification; Protein concentration; Protein Purity; High Performance Size exclusion chromatography; Quality control; Analytical chemistry; Biology and Life Sciences;

   Sammanfattning : Background: There is a need to develop methods of determining concentration and purity for two new affinity ligands, protein T and protein H, in order to ensure the quality of an industrial production of said proteins. Aims: To develop a High Performance Size Exclusion Chromatography, HPSEC, method to determine concentration and purity of protein T and to improve an existing HPSEC method for concentration and purity determination of protein H that show selectivity, display linearity between peak area and injection amount and give repeatable results. LÄS MER

3. 22. Production of succinic acid by Actinobacillus succinogenes in attached-growth bioreactors and dynamic modelling of biofilm formation

   Master-uppsats, Lunds universitet/Teknisk mikrobiologi

   Författare :Henrik Östberg; [2023]
   Nyckelord :Actinobacillus succinogenes; Succinic acid; Biofilm; Attached-growth bioreactor; Dynamic modelling; Cell cultivation; Applied microbiology; Biology and Life Sciences;

   Sammanfattning : Actinobacillus succinogenes is a microorganism is a very efficient producer of succinic acid, a chemical with a wide range of industrial applications. The bacterium is prone to form biofilm, a flocculation of cells attached to a surface. LÄS MER

4. 23. The Potential Use of Degradable Starch Microspheres as a Carrier for Nasal Drug Administration

   Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

   Författare :Rojda Unal; [2023]
   Nyckelord :Pharmaceutical technology; Nasal administration; Läkemedel; Pulverformiga bärare; Sfärer; Pulverinhalation; Bärarmaterial; Läkemedelseffektivitet; Pulverteknik; Partikelformulering; Nasal deposition; Biology and Life Sciences;

   Sammanfattning : Intranasal drug delivery is a practical and accessible method for treating localized symptoms as well as achieving systemic drug absorption. The approach takes advantage of the permeability, vascularization, and limited enzymatic activity of nasal tissue, leading to enhanced drug absorption. LÄS MER

5. 24. The Examination of Alternative Methods for Sperm Cell Lysis and Purification of Sexual Assault Samples

   Master-uppsats, Lunds universitet/Teknisk mikrobiologi

   Författare :Emilie Boson; [2023]
   Nyckelord :Differential lysis; Differential extraction; Sexual assault samples; Sperm cells; Forensic; DNA recovery; DNA profiling; DNA purification; Applied microbiology; Technology and Engineering; Biology and Life Sciences;

   Sammanfattning : Forensic sexual assault samples typically contain a mixture of a small quantity of sperm cells and a high quantity of epithelial cells. This relationship complicates the generation of a DNA profile, which prompts the need for differential lysis and extraction of the DNA. LÄS MER

7. 25. Biocatalysis in Pickering emulsions

   Master-uppsats, Lunds universitet/Bioteknik (master); Lunds universitet/Bioteknik (CI)

   Författare :Christine Vera Isabel Schmidt; [2023]
   Nyckelord :Enzymes; Pickering emulsion; Amine Transaminases; Green Chemistry; Stereoselectivity; Biotechnology; Biology and Life Sciences;

   Sammanfattning : Employing enzymes as catalysts in the production of chiral amines that are both used as building blocks and active pharmaceutical ingredients might be promising due to milder reaction conditions compared to non-biological catalysts, exclusion of heavy metals, high selectivity towards substrates and precision in chirality of the products. Transaminases are attractive for the use in this process. LÄS MER