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A ball and stick model of Human Insulin. Isolated on black.
Science background with molecule or atom
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
Particles, medical concept
3D cartoon and Gaussian surface models. chain id color scheme, PDB 5zjd, white background.
Photomicrograph of flatworm,
Molecules of collagen serum and cream applied to skin and absorbed. 3D rendering.
Fragment of uranium or yellow cake
alien structure made of white spheres and flowing glass liquid, molecular, hi-tech concept, abstract design element
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
From left to right: the NMDA and  AMPA receptors transport calcium cations into neurons after being activated by the neurotransmitter glutamate and  the GABA receptor (right) transport chloride anions after the activation by gamma aminobutyrate. PDB entries: 6wht,  3kg2, 6d6u
3d Rendering Molecular Structure,Ozone,Hydrogen and oxygen
A molecular model of Bisphenol A or BPA.  It is a common building block in the production of many epoxy resins and plastics including polycarbonate plastic. As such it is present in a huge range of food packaging and household products. There are now concerns about its health effects, particularly its effect on children, infants and fetuses.   Isolated on white.
Monosodium glutamate, MSG or sodium glutamate molecules. MSG is used in cooking as a flavor enhancer with an umami taste 3d rendering
CD47 also known as integrin associated protein is a transmembrane protein that in humans is encoded by the CD47 gene. CD47 belongs to the immunoglobulin superfamily and partners with membrane integrins and also binds the ligands thrombospondin-1 and signal-regulatory protein alpha. 3D cartoon and Gaussian surface models, chain id color scheme, based on PDB 2jjt, white background
Liver Fluke Section under light microscope with white background
Biological protein and molecule, 3d rendering. 3D illustration.
Photomicrograph of Paramecium caudatum. Consists of only one cell. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
Aerial view of loyster farm by Ardara, County Donegal - Ireland.
Silica Quartz mineralisation around purple fluorite cubic crystals in a mineral rock sample
Macro cubical pyrite on white matrix isolated on gray background
A molecular model of the plasticizer Dibutyl Phthalate or DBP.  As a plasticizer it has been used in many products including adhesives, textiles, cosmetics and children's toys. There are now concerns about its health effects, particularly its effect on male health and behaviour.   Isolated on white.
Squalane is a hydrocarbon derived by hydrogenation of squalene. 3d illustration
Slice of natural crystal for patterns and textures use with high resolution.
PETase is a bacterial enzyme that breaks down PET-plastic to monomeric molecules. The whole bacterial degradation process yields terephtalic acid and ethylene glycol, which are environmentally harmless.
Structural model of Benzene molecule
3D cartoon and Gaussian surface models, chain id color scheme, PDB 3omv, white background
plant Flower bud of Lilium brownii var.viridulum T.S.\nunder light mircoscope with white background
Coxsackie virus internal structure, 3d illustration set isolated on white
Green quartz crystal isolated on the white background.
Free Images: "bestof:Potassium-sulfide-unit-cell-3D-ionic.png own Benjah-bmm27 Benjah-bmm27 Potassium sulfide Crystal structures of sulfides Crystal structures of potassium salts"
crystal-cream-of-tartar-100178.jpg
ice-ice-crystal-form-frost-crystal-1029818.jpg
hazel-tree-eiskristalle-ice-winter-1063564.jpg
Lewis dot K.svg
Modele alliage ordonne.svg
Minocycline structure.svg
Cryst struct deficit.svg
Structure FeAl B2.svg
Lattice of pentagonal stars.svg
Transformations allotropiques fer.svg
Sr 2 Ru O 4 Layered Perovskite Structure.svg
Cristal reseau maille.svg
Sulfur-dioxide-resonance-2D.svg
Potassium salicylate.svg
Potassium lactate.svg
Potassium trispyrazolylborate.svg
L-potassium lactate.svg
Potassium methylcarbamodithioate 200.svg
Volixibat potassium.svg
Hydrogen-sulfide-3D-vdw.svg
Potassium 2-hydroxypropanoate 200.svg
Furaptra.svg
Dipotassium cyclooctatetraenide.svg
Sodium sorbate V.1.svg
Oelic Acid Potassium Salt Structural Formula V.2.svg
Palmitic Acid Potassium Salt Structural Formula V.2.svg
Stearic Acid Potassium Salt Structural Formula V.2.svg
Potassium gluconate.svg
Potassium lauryl sulfate.svg
Potassium citrate.svg
Vinyl-chloride-2D.svg
Structures cub hex BN.svg
NaCl-Obtención-1.svg
NaCl-Obtención-2.svg
Legame ionico fra sodio e cloro.svg
Limonene-2D-skeletal.svg
Kristallstruktur (Begriffe).svg
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portugues-sexo_alemão-sex_ingles-sex_africano-seks_russo-секс_albanes-sex_chines-性別_bulgaro-секс_croata-spol_gales-rhyw_coreano-섹스_frances-sexe_japones-セックス_filandes-sukupuolesta_arabe-الجنس_prontos_ai_tens_em_15_linguas_a_p.jpg
portugues-sexo_alemão-sex_ingles-sex_africano-seks_russo-секс_albanes-sex_chines-性別_bulgaro-секс_croata-spol_gales-rhyw_coreano-섹스_frances-sexe_japones-セックス_filandes-sukupuolesta_arabe-الجنس_prontos_ai_tens_em_15_linguas_a_p.jpg
Potassium-sulfide-unit-cell-3D-ionic.png
Potassium-sulfide-3D-ionic.png
Potassium-sulfide-unit-cell-3D-balls.png
Potassium-fluoride-3D-ionic.png
Potassium-chloride-3D-ionic.png
Potassium-iodide-3D-ionic.png
Potassium-fluoride-unit-cell-3D-ionic.png
Potassium-chloride-unit-cell-3D-ionic.png
Potassium-iodide-unit-cell-3D-ionic.png
Magnesium-sulfide-unit-cell-3D-balls.png
Magnesium-sulfide-3D-ionic.png
Potassium-graphite-xtal-3D-sticks-A.png
Potassium-hydroxide-xtal-3D-vdW.png
Potassium-hydroxide-xtal-3D-balls.png
Potassium-hydroxide-nine-unit-cells-3D-balls.png
Potassium-graphite-xtal-3D-SF-A.png
Potassium-graphite-xtal-3D-SF-B.png
Potassium-carbonate-xtal-3D-SF.png
Iron(II)-sulfide-unit-cell-3D-balls.png
Calcium-sulfide-3D-ionic.png
Pyrite-3D-polyhedra.png
Calcium-sulfide-3D-balls.png
Pyrite-unit-cell-3D-balls.png
Potassium-thiocyanate-xtal-3D-vdW-A.png
Potassium-graphite-xtal-3D-SF-C.png
Potassium-tetrachlorogallate-xtal-3D-balls.png
Potassium-tetrachlorogallate-xtal-3D-SF.png
Potassium-nonahydridorhenate-xtal-1999-3D-SF.png
Potassium-thiocyanate-xtal-3D-vdW-B.png
Potassium-perchlorate-xtal-3D-SF.png
Potassium-persulfate-xtal-1997-3D-SF.png
Potassium-sodium-tartrate-tetrahydrate-xtal-3D-balls.png
Potassium-nonahydridorhenate-xtal-1999-3D-balls.png
Potassium-tetrachloroplatinate-xtal-1990-C-3D-balls.png
Potassium-tetrachloroplatinate-xtal-1990-C-3D-SF.png
Potassium-persulfate-xtal-1997-3D-balls.png
K2FeO4-xtal-1982-CM-3D-balls.png
Potassium-sodium-tartrate-tetrahydrate-xtal-3D-SF.png
18-crown-6-potassium-chlorochromate-unit-cell-3D-vdW.png
Covellite-xtal-CM-3D-balls.png
Potassium-carbonate-unit-cell-3D-balls.png
Potassium-permanganate-2004-xtal-3D-balls-B.png
Potassium-permanganate-2004-xtal-3D-SF-A.png
Potassium-permanganate-2004-xtal-3D-SF-B.png
Potassium-octachlorodirhenate(III)-dihydrate-xtal-1965-3D-balls.png
PhBF3K-xtal-1995-CM-3D-SF.png
PhBF3K-xtal-1995-anion-CM-3D-ellipsoids.png
Potassium-chlorochromate-xtal-3D-ionic.png
Potassium-cyanide-phase-I-unit-cell-CM-3D-balls.png
Potassium-cyanide-phase-I-unit-cell-3D-balls.png
Potassium-cyanide-phase-I-unit-cell-3D-SF.png
Greenockite-3D-balls.png
Hawleyite-3D-balls.png
Zincite-3D-balls.png
Zincite-3D-ionic.png
Zinc-fluoride-3D-balls.png
Sodium-bromide-3D-ionic.png
Magnesium-chloride-3D-polyhedra.png
Corundum-unit-cell-3D-balls.png
Nantokite-unit-cell-3D-balls.png
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