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A ball and stick model of a strand of a molecule of polyvinyl chloride, more commonly known as PVC. This vinyl polymer is one of the commonest plastics in use.
Perfluoroisobutene fluorocarbon molecule.  3D rendering. Atoms are represented as spheres with conventional color coding: carbon (grey), fluorine (lig
Science background with molecule or atom
3d Rendering Molecular Structure,Ozone,Hydrogen and oxygen
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
Fictitious molecule model inside red and blue pill isolated on white.
Nourish hair of shampoo or serum. Repair damaged hair concept, 3d rendering.
Computational tomography image of the abdominal and pelvic regions.
3D cartoon and Gaussian surface models, chain id color scheme, PDB 2y73, white background
Energy exchange of electrons between atoms
Lily leaf c.s. under microscope
Computer generated abstract concept image of 3d spheres like metaphor of abstract business processes.
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
A ball-and-stick plus ribbons 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.
Filtration and water purification scheme contaminated molecules pass through filter layers
Molecular structure of Sulfur dioxide SO2
Aldehyde dehydrogenase is a polymorphic enzyme responsible for the oxidation of aldehydes to carboxylic acids, which leave the liver and are metabolized by the body’s muscle and heart. 3D cartoon and Gaussian surface models, chain id color scheme, based on PDB 1nzw, white background.
Inside protein molecule
Copper(II) sulfate with molecular structure. Chemical ingredient used in medical and public health issues.
Freshness capsule
HER2 (light blue)  locked in the inactive conformation by Trastuzumab (left) and Pertuzumab. Trastuzumab has drastically improved the prognosis of HER2-positive breast cancer patients.
A molecular model of the flavonoid Quercetin.  An antioxidant and anti-inflamatory, it is used as a nutritional suplement.  It is commonly found in many fruits and vegetables and is a significant chemical component of tea.  Isolated on white.
Cediranib cancer drug molecule. 3D rendering. Atoms are represented as spheres with conventional color coding.
Division of Human Cancer Cells
Collagen protein molecule. Molecular model. 3D rendering. Illustration
Molecular Model of Vitamin E.
Squalane is a hydrocarbon derived by hydrogenation of squalene. 3d illustration
Bone marrow plasma cells .Plasma cell neoplasms are diseases in which the body makes too many plasma cells. Plasma cell neoplasms can be benign or malignant. Diagnosed with Immunostain CD138 positive.
HER3 and the epidermal Growth Factor Receptor (EGFR) activate the  MEK/ERK (MAPK) signaling pathway. They play a  crucial role in cellular proliferation, survival, and differentiation. Dysregulation of this pathway is linked to cancer progression.
Abstract technological design of an artificial molecular structure in many colors. Horizontal wide composition.
Free Images: "bestof:Rui Fig 37.png Figure 3 Incorporation of Bithionol into the Polymer Backbone own Chem538w10grp9 Polymers"
Voltage regulator foldback.svg
Energy density.svg
MDKQ3.svg
Absolute Seebeck coefficients of various metals up to high temperatures.svg
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Antimicrobialpolymerskillbacteria.png
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Rui Scheme 19.png
Davenport Fig 6.jpg
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