1,700+ technical articles by Aladdin Scientific's scientists on reagent selection, reaction mechanisms, assay design and formulation. New every week.
Skin color is influenced by the number of superficial blood vessels, vessel diameter, local blood flow, and hemoglobin content. When the skin is exposed to heat, physical exercise, emotional changes, or external stimuli, superficial blood vessels dilate and cutaneous blood flow increases, ...
Fusion tags can improve the expression, solubility, and purification efficiency of recombinant proteins but may also affect the structure, activity, and interactions of the target protein. Selecting an appropriate cleavage enzyme according to its recognition sequence, catalytic type, and ...
Ganesh A. Kadam, Suparnak Midya, Vitalina Levchenko, Vadym Sham, Pavel K. Mykhailiuk, and Durga P. Hari reported Ring-Expansion of Ketones with [1.1.1]Propellane, published in the Journal of the American Chemical Society, 2026, 148, 388–399, DOI: 10.1021/jacs.5c14022. This study introduces a ...
Collagen peptides in skincare products are often understood as being able to directly replenish collagen lost from the skin. In reality, the process does not involve filling the dermis with exogenous collagen, but instead operates at two distinct levels.
The International Scientific Association for Probiotics and Prebiotics (ISAPP) defines probiotics as live microorganisms that, when administered in adequate amounts, confer a health benefit on the host.
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, ...