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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 cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background

Nucleosome structure. Structure of an oligonucleosome, showing the packaging of DNA in chromosomes. 3D illustration.

Copper(II) sulfate with molecular structure. Chemical ingredient used in medical and public health issues.

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.

3D cartoon and Gaussian surface models, PDB 5fwk, white background

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.

3D rendering of biotinylated antibody, an engineered protein designed to bind to specific molecules. Biotin allows researchers to easily track and manipulate these antibodies.

Carbamide in Chemical Watch Glass with molecular structure. Chemical ingredient used in medical and public health issues.

Immunotherapy of Alzheimer's disease: Monoclonal antibody (light blue) bound to an amyloid beta peptide (orange), that is aggregated to amyloid beta fibrils, which build up amyloid plaques.

Rendered coronavirus/2019-nCoV single-stranded RNA, built from experimentally determined Ebola virus crystal structure. Color symbols - bluewhite=carbon, pink=oxygen, lightblue=nitrogen, white=hydrogen, lavender=phosphorus

3D cartoon and molecular surface models, chain id color scheme, putative membrane shown, pdb 1l7v, white background

Healthy natural ingredients containing vitamin B3 and minerals. Nutritious eating

A ribbons model of Human Insulin. Isolated on white.

Variety of seeds bowl on white quartz counter top

Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet), ampicillin (red).

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3D cartoon and Gaussian surface models, chain id color scheme, PDB 2iw2, white background

Selenium with capsules or pills on the periodic table (Periodic table made by me) Stock image representing mineral supplementation.

Best nutritious food to fight with anemia. Natural source iron, vitamins and minerals

The word SEO and related words are in speech bubbles on blue background. Communication Concept.

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Constant-k Filter Transmission Parameters.svg

Ketocarboxylic Acids General Formulae V.1.svg

Fixed-points theory and variance minimization (dynamic vibration absorber) (SVG).svg

Constant-k Filter Gain with Multiple Half-Sections.svg

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