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Cell membrane cholesterol is shown in pink. 3D cartoon and Gaussian surface models, PDB 7rpk, white background.
In a quiet, sterile lab environment, a lone scientist adjusts the settings on a sophisticated 3D printer that has been optimized for printing meat from bio ink, a revolutionary new material that has the potential to greatly reduce the environmental impact of traditional meat production.
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
Dna structure on science background. 3d illustration
Genetic research abstract - Colorectal cancer
Enzyme-linked immunosorbent assay (ELISA), Immunology testing method in laboratory
Abs Virus - 3d rendered image like colorized scanning electron micrograph. Scene showing virus (yellow)  emerging from infected cell.\nConcept of coronavirus that’s causing a global pandemic. Covid-19, Sars-cov-2 alpha, betta, gamma, delta, lambda variant, 2019-nCoV, Coronavirus.\nSEM, TEM, hologram view.
Laboratory personnel testing blood
Science background with molecule or atom
SARS-CoV-2 ORF3a is a putative viral ion channel implicated in autophagy inhibition, inflammasome activation and apoptosis. 3D cartoon and Gaussian surface models, based on PDB 7kjr, white background.
Close-up shot of a petri dish for checking an antibiotic in the laboratory.
The calcitonin gene related peptide (yellow) binds to its receptor (blue) on neurons and smooth muscle cells of cerebral blood vessels, activating a signal cascade through G-proteins (dark blue) in this cells that  leads to a dilatation of the blood vessels (vasodilatation).
Close up of cristal beads
Algaes under microscopic view
The three-dimensional structure of proteins is represented in a variety of conformations. This image is based on the ribbon structure of a protein. It is suitable for biology notebooks and book covers.\nThis image has not been created by AI.
Three syringes are pictured on a sterile metal tray, which is held in the hands of someone wearing a lab coat and gloves. In the background are lab and research materials.
The integration of fluidics and optics, antibodies molecule in flow-through nanohole arrays, has enabled increased transport of analytes to sensing surfaces 3d rendering
in vitro fertilization on scientific background. 3d illustration
Close-up shot of a petri dish for checking an antibiotic in the laboratory.
Freshwater Closterium algae (unicellular charophyte green algae) - optical microscope x200 magnification
Photomicrograph of filamentous blue-green algae, Oscillatoria species. Each band along the stand is one cell. This filament is very short probably having recently parted from a longer one. Filaments are typically many times longer. This algae is mobile, it moves and twists through the water. San Francisco Bay, California, USA. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination. Note - motion blur of live specimen, very shallow depth of field, chromatic aberration and uneven focus are inherent in light microscopy.
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background
Human embryonic stem cells
Midsection of young male biochemist using pipette over multi well plate at laboratory
Nourish hair of shampoo or serum. Repair damaged hair concept, 3d rendering.
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
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.
Cross-section Dicot, Monocot and Root of Plant Stem under the microscope for classroom education.
plant Leaf of Nerium indicum T.S. under light mircoscope with white background
Free Images: "bestof:Chromosome Conformation Capture Technology (zh-cn).svg 染色质构象捕捉� � � Chromosome_Conformation_Capture_Technology jpg 50 2014-02-08 08 09 UTC"
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bee19992_anthid_red,_m,_kenya,_butt_2014-08-09-14.50.36_ZS_PMax.jpg
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bee_09856e08,m,_thailand,_angle_2014-08-09-11.19.21_ZS_PMax.jpg
Coelioxys_cayennensis,_f,_argentina,_angle_2014-08-09-17.09.49_ZS_PMax.jpg
Nomia_omanomano,_m,_oman,_face_2014-08-09-19.26.02_ZS_PMax.jpg
paranomada_velutina,_f,_arizona,_face_2014-08-09-15.30.33_ZS_PMax.jpg
paranomada_velutina,_f,_arizona,_angle_2014-08-09-15.21.39_ZS_PMax.jpg
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Nomia_spiney,_m,_vietnam,_angle_2014-08-09-20.34.08_ZS_PMax.jpg
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bee_09856e08,m,_thailand,_tool_2014-08-09-12.06.33_ZS_PMax.jpg
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Coelioxys_cayennensis,_f,_argentina,_side_2014-08-09-17.36.07_ZS_PMax.jpg
Parepeolus_stuardi,_f,_side,_chile_2014-08-06-17.08.09_ZS_PMax.jpg
Coelioxys_cayennensis,_f,_argentina,_face_2014-08-09-17.19.32_ZS_PMax.jpg
Ceratina_14507h1,_m,_vietnam,_side_2014-08-09-16.53.21_ZS_PMax.jpg
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bee_eucerine,_f,_chile,_side_2014-08-09-14.24.44_ZS_PMax.jpg
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Caupolicana_gaullei,_m,_brazil,_angle_2014-08-14-09.30.49_ZS_PMax.jpg
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Xylocopa_balck_violetwing,_f,_kyrgystan,_face_2014-08-09-18.39.14_ZS_PMax.jpg
bombus_eximias,_f,_tawain,_face_2014-08-10-09.44.49_ZS_PMax.jpg
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Ceratina_(Macro).jpg
Panurginus_calcaratus,_f,_facd,_Norway_2014-08-06-09.15.21_ZS_PMax.jpg
Panurginus_calcaratus,_f,_side,_Norway_2014-08-06-09.32.48_ZS_PMax.jpg
Xylocopa_balck_violetwing,_f,_kyrgystan,_angle_2014-08-09-18.24.33_ZS_PMax.jpg
Colletes_hederae,_f,_country_unk,_face_2014-08-09-18.06.18_ZS_PMax.jpg
Caupolicana_electa,_f,_ga,_baker,_face_2015-01-08-09.19.23_ZS_PMax.jpg
Xylocopa_balck_violetwing,_f,_kyrgystan,_side_2014-08-09-18.51.09_ZS_PMax.jpg
Colletes_hederae,_f,_country_unk,_side_2014-08-09-18.15.49_ZS_PMax.jpg
bee_ceratina_monster,_f,_ukraine,_angle_2014-08-09-12.21.55_ZS_PMax.jpg
bee_ceratina_monster,_f,_ukraine,_side_2014-08-09-12.48.23_ZS_PMax.jpg
bee_ceratina_monster,_m,_crimea,_face_2014-08-09-13.08.38_ZS_PMax.jpg
bee_ceratina_monster,_m,_crimea,_facebackground_2014-08-09-13.22.29_ZS_PMax.jpg
Nomia_spiney,_m,_vietnam,_face_2014-08-09-21.31.26_ZS_PMax.jpg
bee_big_3_color,_m,_india,_angle_2014-08-09-21.46.28_ZS_PMax.jpg
Bombus_fraternus,f,_ga,_baker,face_2015-01-08-09.06.56_ZS_PMax.jpg
bee19992_anthid_red,_m,_kenya,_face_2014-08-09-14.59.06_ZS_PMax.jpg
Nomia_species,_m,_oman,_angle_2014-08-09-19.16.10_ZS_PMax.jpg
Nomia_species,_m,_oman,_side_2014-08-09-20.08.16_ZS_PMax.jpg
bee_eucerine,_f,_chile,_face_2014-08-09-14.03.29_ZS_PMax.jpg
bombus_eximias,_f,_tawain,_side_2014-08-10-09.55.23_ZS_PMax.jpg
bee19992_anthid_red,_m,_kenya,_angle_2014-08-09-14.36.59_ZS_PMax.jpg
Meganomia_sp,_m,_south_africa,_face_2014-10-11-18.08.09_ZS_PMax.jpg
Dianthidium_curvatum,_m,_GA,_baker,_face_2015-01-08-09.40.49_ZS_PMax.jpg
Dianthidium_curvatum,_m,_GA,_baker,_back_2015-01-08-09.35.02_ZS_PMax.jpg
Protoxaea_gloriosa,_f,_left_side,_Cochise_Co.,_AZ_2016-09-07-11.08.jpg
Triepeolus_lunatus,_f,_back,_Charleston_Co.,_SC_2016-09-08-18.14.jpg
Triepeolus_lunatus,_f,_right_side,_Charleston_Co.,_SC_2016-09-08-18.37.jpg
Triepeolus_lunatus,_f,_face,_Charleston_Co.,_SC_2016-09-08-18.23.jpg
bee19992_anthid_red,_m,_kenya,_side_2014-08-09-15.11.14_ZS_PMax.jpg
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