1,700+ technical articles by Aladdin Scientific's scientists on reagent selection, reaction mechanisms, assay design and formulation. New every week.
γ-PGA is a natural polymer composed of numerous linked glutamic acid units. Industrially, it is generally produced by microbial fermentation using Bacillus species and other microorganisms. Depending on the microbial strain and production conditions, γ-PGA may consist of D-glutamic acid, ...
The Scientific Committee on Consumer Safety (SCCS) describes octocrylene as a yellow, transparent, viscous liquid with a relative molecular mass of approximately 361.5, low water solubility, and a high octanol–water partition coefficient.
Tumor immune killing depends not only on whether immune cells are present, but also on the balance between inhibitory and activating signals. NKG2A restricts NK cell and CD8⁺ T cell function through HLA-E, whereas NKG2D recognizes tumor stress ligands and enhances immune killing. Together, ...
Endopeptidases and exopeptidases act on internal and terminal regions of peptide chains, respectively. They are important enzyme classes in protein degradation, peptide processing, antigen presentation, cell death, and disease microenvironment research. The two differ clearly in substrate level, ...
Organoids can self-organize from tissue stem cells, primary cells, or pluripotent stem cells in a three-dimensional environment and partially reconstruct the cellular composition, spatial architecture, and functional characteristics of organs. They provide models that more closely resemble in ...
The fibrinolytic system selectively degrades cross-linked fibrin within thrombi by converting plasminogen into plasmin. Streptokinase, urokinase, and tissue-type plasminogen activator initiate this process through different mechanisms and exhibit clear differences in fibrin selectivity, duration ...
Induced pluripotent stem cells (iPSCs) have self-renewal and multilineage differentiation capacities and can be used in disease modeling, drug screening, organoid construction, and cell therapy research. Directed differentiation of iPSCs depends on stage-specific signal regulation. Activin A, ...
The superoxide anion radical (O₂•⁻) participates in redox signaling and also serves as an important precursor of hydrogen peroxide, peroxynitrite, and other reactive species. Because it is short-lived and highly reactive, detection results depend strongly on probe specificity, the reaction ...
Microorganisms can rapidly release excess carbon and generate ATP through acetate-producing pathways, while also activating extracellular acetate into acetyl-CoA. Phosphotransacetylase, acetate kinase, and acetyl-CoA synthetase jointly regulate acetate production, reutilization, and the ...
