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Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
A model of a molecule of arginine, an amino acid. Amino acids are the building blocks of proteins and have many functions in metabolism. In particular, Arginine has an important function in the immune system, wound healing and cell division.
The integration of fluidics and optics, antibodies molecule in flow-through nanohole arrays, has enabled increased transport of analytes to sensing surfaces 3d rendering
Phospholipid bilayer membrane structures that make up living cells and their contents. This is an image of membrane proteins in the membrane.\nThis image, which looks like a plastic model, evokes biology and biochemistry. It can be used as a cover for magazines, textbooks and presentation materials.\nThis image was not created by AI.
3D cartoon and Gaussian surface models, PDB 6gu2, white background
Inside protein molecule
Folic acid, folate molecule. It is known as vitamin B9. Molecular model. 3D rendering. Illustration
What micro plastic is made of - Chemical ingredients.\nClose up of microplastic on finger concept of water pollution and global warming
After dopamine binding, the dopamine receptor changes his shape and binds the inactive G protein.The G protein expels its GDP molecule replacing it by GTP. and falls into two pieces. The Galpha subunit binds to and activates the enzyme adenylyl cyclase, which produces then cyclic AMP spreading a signal through the cell.
A ball and stick model of a molecule of Human Interferon. Interferons are proteins important in the working of the immune system and are produced in large numbers in the presence of viruses, bacteria, tumors and parasites.  Interferons are used in drugs to combat cancer, multiple sclerosis, hepatitis B and C and other diseases. Isolated on white.
forming of underskin cellulite illustration
The three-dimensional structure of proteins is represented in a variety of conformations. This image is based on the ribbon structure of a protein. It is suitable for biology notebooks and book covers.\nThis image has not been created by AI.
3D cartoon and Gaussian surface models, PDB 2vtb, white background.
Molecular Model of Vitamin E.
Hyaluronan, hyaluronic acid, HA, hyaluronate molecule, short fragment. Molecular model. 3D rendering. Illustration
Close up of microplastic on female finger concept of water plastic pollution and global warming with text explaining the ingredients of micro plastic
The angiotensin converting enzyme 2 (ACE2, blue) in complex with the amino acid transporter BOAT 1 (violet). ACE2 is involved in control of blood pressure and is the target for the SARS-CoV-2 virus to infect human cells..\
Freshness capsule
Squalane is a hydrocarbon derived by hydrogenation of squalene. 3d illustration
Artificial molecular structure in many colors. Horizontal composition, isolated on white background.
3D cartoon and Gaussian surface models, chain id color scheme, PDB 6jod, putative membrane is shown, white background
A ball-and-stick molecular model of the hormone Orexin, also known as Hypocretin.  Orexin is involved in the regulation of the sleep/wake cycle and it stimulates apetite, wakefulness and energy expenditure. It has been linked with Alzheimer's disease.  Isolated on white.
Cediranib cancer drug molecule. 3D rendering. Atoms are represented as spheres with conventional color coding.
Open capsule or pill with molecular structure. Nanotechnology concept
TNF-alfa (blue) is the most potent proinflammatory cytokine and is crucial in the pathogenesis of PsA. TNF-  inhibitors considerably relieve symptons in patients. A therapeutic antibody (adalimumab) blocks the receptor binding site of  TNF-.
Molecular model of lactose, a disaccharide sugar in milk.
Remdesivir is a broad-spectrum antiviral medication, it is a specific treatment for COVID-19. 3d illustration
young woman, maybe chemist, businesswoman or teacher shows a molecular structure on a virtual whiteboard. Need more stuff like this:
Prednisone is a glucocorticoid medication mostly used to suppress the immune system and decrease inflammation in conditions such as asthma, COPD, and rheumatologic diseases.
Fictitious molecule model inside red and blue pill isolated on white.
Free Images: "bestof:Streptokinase mechanism of action.png en Reaction mechanism of the enzyme streptokinase own Clossey Enzyme reactions Streptokinase"
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Beckmann rearrangement mechanism.svg
Etard rxn.svg
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Catalisi enzimatica.svg
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