Transformation and Transfection Methods
Transformation and transfection are methods for introducing exogenous nucleic acids into bacterial and eukaryotic cells for genetic manipulation.
Biology
Analytical Weighing Techniques
Accurate weighing is the foundation of quantitative laboratory work, requiring proper balance use, environmental control, and technique.
Laboratory Fundamentals Centrifugation and Filtration Techniques
Centrifugation and filtration are fundamental separation techniques that use centrifugal force or porous media to isolate particles, cells, and molecules from liquid suspensions.
Laboratory Fundamentals pH Measurement and Buffer Preparation
pH measurement and buffer preparation are essential for maintaining stable reaction conditions in virtually all biological and chemical experiments.
Laboratory Fundamentals Pipetting, Dilutions, and Solution Preparation
Accurate pipetting, dilution calculations, and solution preparation are foundational skills for reproducible laboratory work.
Laboratory Fundamentals Spectrophotometer Operation and Principles
Spectrophotometry measures the interaction of light with matter and is the most widely used quantitative technique in laboratory science.
Laboratory Fundamentals Affinity Capture
Affinity capture is a set of biochemical techniques that purify or isolate proteins by exploiting specific binding interactions between a tagged or native protein and an immobilized capture reagent.
Biology Biotin-Avidin Systems
Biotin-avidin systems exploit the strongest known non-covalent biological interaction to label, capture, and detect biomolecules in biochemical assays.
Biology GST-Tag Pull-Down
GST-tag pull-down uses glutathione S-transferase fusion proteins immobilized on glutathione agarose to purify recombinant proteins or capture interacting partners.
Biology His-Tag / IMAC Purification
Immobilized metal affinity chromatography purifies polyhistidine-tagged recombinant proteins using immobilized metal ions and imidazole elution.
Biology Protein A/G Purification
Protein A and Protein G are bacterial proteins that bind the Fc region of immunoglobulins, enabling rapid one-step purification of antibodies from serum or culture supernatants.
Biology Strep-Tag Purification
Strep-tag purification uses a short peptide tag (Strep-tag II) that binds specifically to engineered streptavidin (Strep-Tactin) for gentle, one-step protein purification.
Biology