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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
Endosomes - 3d rendered image of Endosomes are membrane-bound organelles. They are parts of endocytic membrane transport pathway.  Endomembrane system in cells. Bilayer Lipid Membrane. Abstract medical illustration. Microscopic view. Microbiologic research concept.
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background
Neuroendocrine carcinoma well differentiated (carcinoid) rectum with immunostain synaptophysin
Cell membrane structure background, 3d rendering. Digital drawing.
Close up of cristal beads
Spike proteinĀ of SARS-CoV-2, Mutation in the spike protein that the virus uses to bind to the human ACE2 receptor. Mutation sped up spread of coronavirus.
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
Quantum Gravity 3d rendered image of a comprehensive exploration of Quantum Gravity theories. String theory, loop quantum gravity (LOG), causal dynamical triangulation, twistor theory, gravitational waves, spacetime, gravity waves, quantum mechanics, quantum entanglement concepts.
Spike glycoprotein homotrimer, a main target for neutralization antibody, to bind its receptor, ACE2, and mediate membrane fusion and virus entry. 3D cartoon and Gaussian surface models, white background.
Artificial Intelligence Sustainable Responsible Technology
Microscopic image of onion root tip cells undergoing mitosis. Anaphases and metaphases. 1000x magnified
Overhead aerial drone view of oyster farm racks at low tide, flying at a low altitude to be able to see the detail of the oyster racks and seaweed. Located in a tidal estuary in Sutherland, Scotland. the low tides enable workers to access the racks for turning the oysters as they grow. Oysters have been farmed for many hundreds of years using this method. Seaweed has grown around the metal lines of racks.
Cell membrane with white background, 3d rendering. Computer digital drawing.
Green and blue paper clips and one yellow paper clip on a blue background.
Amitriptyline is used as an antidepressant and antimigraine drug. It blocks sodium channels on neuronal membrans. Sodium channels generate and propagate action potentials in neurons and muscle. Source: PDB entry 6AGF
plant Flower bud of Lilium brownii var.viridulum T.S.\nunder light mircoscope with white background
3D cartoon and molecular surface models, chain id color scheme, putative membrane shown, pdb 1l7v, white background
colorised photo
Backgrounds of Bacteria and Mold under the microscope in Lab.
A molecular model of the cross section through a cell membrane.
Metastatic plasmacytoma, metastatic undifferentiated sarcoma. Microscopically show cellular material of mostly plasmacytiod cells. atypical mitoses are present. plasma cell tumor.
Diffuse large B-cell lymphoma, or DLBCL, is a cancer that starts in white blood cells called lymphocytes.
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.
Colourful abstract background
3D cartoon and Gaussian surface models, PDB 5fwk, white background
smoke lung with black deposit in microscopy
Hyaline cartilage, Elastic cartilage and Bone Human under the microscope in Lab.
A molecular model of Amyloid protein fibrils. Formed when mis-folded proteins self-assemble into fibrous sheet structures, they are found in the brains of sufferers of Alzheimer's disease and may be implicated in causing the disease.
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