Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
A ball and stick model of Human Insulin. Isolated on black.
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background
Close up of cristal beads
Halofantrine is a drug used to treat malaria. Halofantrine's structure contains a substituted phenanthrene, and is related to the antimalarial drugs quinine and lumefantrine. 3d illustration
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.
Biological protein and molecule, 3d rendering. 3D illustration.
3d rendering of Easter eggs background
Arabidopsis thaliana pollen grains in anther, fluorescent staining of DNA by Hoechst 33342 and modelling by  surface rendering software.
Bacteria pathogen - 3d rendered microbiology image. Illustrate of Lactobacillus Bulgaricus Bacteria, Microbacterium Tuberculosis Bacteria (MTB). Medical research, health-care concept. SEM (TEM) scanning view
Deacetoxycephalosporin-C synthase (DAOCS) is a mononuclear ferrous enzyme that transforms penicillins into cephalosporins. 3D cartoon and Gaussian surface models, chain instance color scheme, based on PDB 1uof, white background.
Close-up shooting of a green agate stone mineral surface isolated on white background. Its a macro shot shows nature beautiful details with back lit. Agate is a kind of natural gemstone. Abstract pattern. Good for Wallpaper texture background. Turquoise, blue
p53 (blue) tagged with ubiquitin (yellow) is degraded into small peptides by a proteasome (violett). p53 prevents cancer formation and acts as a guardian of the genome. Mutations in the p53 gene contribute to about half of the cases of human cancer.
Liver Fluke Section under light microscope with white background
Biological protein and molecule, 3d rendering. 3D illustration.
Liquid bubbles up Fluid Twirl
Mefloquine is a medication used to prevent or treat malaria.When used for prevention it is taken once a week and should be started one or two weeks before potential exposure. 3d illustration
Cloudy mountains, lakes and paths
3D cartoon and Gaussian surface models, PDB 6kxs, white background
Stylized representation of monochrome green glowing virus cells on a dark background
The DNA tetrahedron is designed to be mechanically robust; it consists of rigid triangles of DNA helices covalently joined at the vertices
Inside protein molecule
orange: RNA primer; red: RNA template; light blue: proofreading riboexonuclease; mid blue: helicase; dark blue: RNA directed RNA polymerase; violet: non structural proteins (NSPs).
Computer generated abstract concept image of 3d spheres like metaphor of abstract business processes.
Chain of amino acid or biomolecules called protein - 3d illustration
Texture pattern on marble of stone surface of agate slice.
3D cartoon and Gaussian surface models, PDB 6gu2, white background
Structural model of Benzene molecule
Neohalicholactone is unusual fatty acid metabolites having a cyclopropane ring and a nine-membered lactone. 3d illustration
Conceptual visualization of the swine influenza virus (h1n1)
Free Images: "bestof:Hydroxymethylfurfural 2.png Hydroxymethylfurfural png en 2D structure of 2 5-bis hydroxymethyl furan own Tamila Shalumova 2010-12-19 Hydroxymethylfurfural"
Roasted coffee beans.jpg
2,5-Bis(hydroxymethyl)furan.svg
Carbonic-acid-2D.svg
D-glyceraldehyde-3-phosphate.svg
Ethin.svg
But-1-en-3-yne.svg
Doxorubicin-2D-structure.svg
AP-7 2D-Structure.svg
Pyritinol 200.svg
2C-B 2D Structure.svg
Gliotoxin.svg
Imipramine.svg
Pemoline.svg
Lidocaine.svg
Hydroxyzine.svg
Triiodothyronine.svg
Serotonin.svg
Nikethamide.svg
Acetylcholine.svg
Synephrine.svg
Cyclizine.svg
Tartrazine.svg
Melatonin.svg
Ropinirole.svg
Triflupromazine.svg
Carbamazepine.svg
Biperiden.svg
Carbidopa.svg
Rotigotine.svg
Pergolide.svg
Apomorphine.svg
Atropine.svg
Carvedilol.svg
Captopril.svg
Moclobemide.svg
Cathinone.svg
Methcathinone.svg
Probenecid.svg
Mephenytoin.svg
NEFA.svg
Piracetam.svg
Pramiracetam.svg
Rasagiline.svg
Nabilone.svg
Alprazolam.svg
Adrafinil.svg
Nicotine.svg
Fentanyl.svg
Tianeptine.svg
Opipramol.svg
Sertraline structure.svg
Etoperidone structure.svg
Fluvoxamine structure.svg
Isocarboxazid structure.svg
Hypericin.svg
Bifemelane.svg
Astemizole.svg
Ketobemidon.svg
2C-H.svg
Phenytoin structure.svg
Ibuprofen.svg
Cipralisant.svg
Levomethamphetamine.svg
DBT.svg
DPT.svg
DET.svg
Cyclobenzaprine.svg
Agomelatine.svg
Glaucine.svg
Clobenzorex structure.svg
Harmine.svg
Paraoxon.svg
Theobromine.svg
2C-E.svg
2C-I.svg
3C-E.svg
PMA.svg
MDPV.svg
2C-B.svg
2C-T-7.svg
AMT.svg
Lamotrigine.svg
Sucralose2.svg
Alphamethylacetylfentanyl.svg
Alphamethylfentanyl.svg
Diethylcathinone.svg
Nortriptyline.svg
Bupropion.svg
Milnacipran.svg
Eticyclidine.svg
Rolicyclidine.svg
Tenocyclidine.svg
2C-C.svg
2C-T-2.svg
Vinpocetine.svg
AET.svg
Aniracetam2.svg
Sufentanil.svg
Isometheptene.svg
Hydantoin.svg
Terms of Use   Search of the Day