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White blood cell interacting with Klebsiella pneumoniae bacteria TEM
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Acid coal mine water treatment lagoon
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Antibodies binding influenza virus Illustration of human antibodies (orange) neutralizing a influenza virus particle (blue) Each Y-shaped molecule h
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Antibodies binding influenza virus illustration
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Sketch of 3 antibodies computer artwork An antibody also known as an immunoglobulin is an assembly of proteins that allows the immune system to id
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Immunoglobulin G antibody molecules coloured transmission electron micrograph (TEM) IgG is the most abundant human immunoglobulin and is found in a
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Gastric ulcer Coloured X-ray of a stomach containing a gastric (peptic) ulcer (upper right white) Ulcers are caused by excessive stomach acid (dige
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The Mat de Cocagne 1845 Bastille Day celebrations in Paris the struggle for prizes is carried on by means of a high pole fixed in the Champs El
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Viruses and antibodies Computer artwork of four viruses (round left) surrounded by Y-shaped immunoglobulins or antibodies (white) A white blood cel
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Antibody Computer graphic of a molecule of immunoglobulin G1 a type of antibody protein that the immune system uses to fight infections Like all pr
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Antibody computer artwork An antibody also known as an immunoglobulin is an assembly of proteins that allows the immune system to identify and neu
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Antibody computer artwork An antibody also known as an immunoglobulin is an assembly of proteins that allows the immune system to identify and neu
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Chemical peel
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Virus and antibodies Computer artwork of a virus particle (purple) surrounded by antibodies (Y-shaped) Antibodies are assemblies of proteins that al
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Viruses and antibodies artwork
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Goblet and secretory cells Coloured transmission electron micrograph (TEM) of a section through a goblet cell (pink blue) and secretory cells of th
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Immunoglobulin G antibody molecule Computer model of the secondary structure of immunoglobulin G (IgG) This is the most abundant immunoglobulin and
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Gastric ulcer Coloured X-ray of a stomach containing a gastric (peptic) ulcer (upper right black) Ulcers are caused by excessive stomach acid (dige
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Titration Chemist prepares to chemically analyse a solution using a technique known as titration He is pipetting a coloured solution out of a flas
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Immunoglobulin G antibody Molecular model of the antibody immunoglobulin G (IgG) Each coloured strand represents a protein chain The arrows and cyl
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Pupil performing titration Schoolgirl dripping measured volumes of an acid from a burette (down right) The conical flask (lower right) contains a me
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Pupil performing titration Schoolgirl dripping measured volumes of an acid from a burette (down centre) The conical flask (bottom centre) contains a
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Phenolphthalein in a labelled reagent bottle This colourless chemical (formula C20H14O4) is used as an indicator for acids and bases The ion that
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Investigating pH and neutralisation
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Acids react with alkalis producing a salt
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Immunological research Scientists use an automated immunochemical analyser in a laboratory Immunochemistry is the study of antigens and antibodies
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Rhodogune (daughter of the Parthian king Mithridates I) 2nd century BC A plate from Les Images Ou Tableaux De Platte Peinture Des Deux Philostrates S
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Titration Chemist prepares to chemically analyse a solution using a technique known as titration He is pipetting a measured amount of a coloured s
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Automated titration Chemist with a computer-controlled system for analysing chemical solutions by a technique known as titration Titrations are de
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Titration Schoolgirl adding an alkaline solution (from a burette) to a known volume of acid (in flask) The alkaline solution will neutralise the a
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Testing pH Universal indicator (left) being used to test the pH of a solution (centre) of sodium hydroxide and hydrochloric acid Here the solution
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Testing pH Universal indicator (left) being used to test the pH of a solution (centre) of sodium hydroxide as hydrochloric acid is added As the acid
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Neutralisation titration
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Neutralisation titration Burette (top) being used to slowly add measured amounts of an acid to an alkaline solution in a flask (bottom) containing a
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Unmanned mine clearance vehicle Small unmanned ground vehicle (SUG-V) being remotely operated by the US Navy during a mine clearance training exercis
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Chemistry experiment Student preparing an acid-base titration to determine the concentration of an alkaline solution He is filling a glass pipette
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Burette Valve and tip of a laboratory burette with the tip placed inside the neck of a flask In the background is a measuring cylinder (at left) and
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Rotary kiln for lime burning This is a rotating cylinder kiln The white powder is lime and limestone dust The glow (upper centre) is where limeston
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Shaft kiln for lime burning This is a vertical-shaft kiln with a conveyor belt (top left) to add raw materials to the kiln Smoke (top) forms as lime
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Alkaline household products Alkalis react with and can neutralise acids Strong alkalis are corrosive and are often used as cleaning products
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US Navy underwater mine clearance drone
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US Navy underwater mine clearance drone
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US Navy underwater mine clearance drone
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US Navy underwater mine clearance drone
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US Navy mine neutralisation system US Navy Mineman 2nd Class operating the mine neutralisation system from the combat information centre aboard the m
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Decontamination foam testing View of a researcher spraying decontamination foam in a laboratory In minutes this foam neutralises biological and che
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Genetically modified maize Genetically modified (GM) maize plants Zea mays during a field trial This GM maize has had one application of a Glyphosa
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Genetically modified maize Genetically modified (GM) maize plants Zea mays during a field trial This GM maize has had one application of a Glyphosa
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Genetically modified maize Tractor in a field of genetically modified (GM) maize plants Zea mays during a field trial This GM maize has had one app
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Genetically modified maize Tractor in a field of genetically modified (GM) maize plants Zea mays during a field trial This GM maize has had one app
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Testing for carbonate Test tube containing a compound added to acid (left) producing a gas which is bubbled through limewater (calcium hydroxide solu
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Ampoule of antivenin serum orange liquid with foam at top
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Antibodies and B cells Computer artwork showing antibodies (green) neutralising cytokine activity in B cell (large round) white blood cells
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Antibodies and B cells Computer artwork showing antibodies (green) neutralising cytokine activity in B cell (large round) white blood cells
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Phenolphthalein in a labelled laboratory bottle This colourless chemical (formula C20H14O4) is used as an indicator for acids and bases The ion t
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Genetically modified maize Tractor in a field of genetically modified (GM) maize plants Zea mays during a field trial This GM maize has had one app
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Diphtheria vaccine Researcher pipettes pink liquid into phials during testing of a diphtheria vaccine Corynebacterium diphtheriae the bacterium whi
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Response to acid rain View of a lime dosing column on a stream in Sweden The doser adds lime (calcium hydroxide) to the stream which is acidic due t
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Lavender A field of lavender Lavandula spica The name comes from Latin lavare wash referring to the plants use in toilet preparations It flower
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Metal salt crystals Salts are compounds that can be formed from the neutralisation of an acid The salts here (clockwise from lower left) are sodium
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Sodium hydroxide bottle and pellets The bottle contains sodium hydroxide solution (NaOH caustic soda) The watch glass contains sodium hydroxide pel
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Antibodies Computer artwork of antibodies in the blood stream Antibodies are assemblies of proteins that allow the immune system to identify and neu
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Polarised light micrograph of crystals of ammonium sulphate mag X 25 A white crystalline solid ammonium sulphate is produced in large quantities
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Reaction of magnesium carbonate in acid Digital thermometer (top) being used to measure the temperature of a chemical reaction The reading is 23 deg
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Alkaline titration using methyl orange Endpoint of a titration using methyl orange to detect the neutralisation of an excess of alkali Methyl orange
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Phenolphthalein indicator being compared in acid (left) and alkaline (right) solutions Changes in colour (here pink to colourless) are a common way t
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Phenol reactions Phenol (carbolic acid C6H5OH) dissolved in water (H2O left) forming a milky solution An alkali is added (centre) which neutrali
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Acid and alkali Bottles of sulphuric acid and sodium hydroxide or caustic soda (an alkali or base) solutions Acids are substances which produce an e
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Acid-base titration Demonstration of an acid-base titration using the indicator phenolphthalein An alkaline solution is in the flask with a few dro
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Alka-Seltzer tablets and packaging Alka-Seltzer tablets are used to treat indigestion heartburn and associated headaches and pain These tablets ar
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Chemistry experiment Student preparing an acid-base titration to determine the concentration of an alkaline solution He is filling a glass pipette (
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Illustration of an acid-base neutralization reaction with the example of hydrochloric acid and sodium hydroxide
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Illustration of an oxidation-reduction reaction with the example of rust on an iron padlock
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Physical and chemical changes illustration Water boiling is a physical change water electrolysis causes a chemical change
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Illustration of litmus liquid and litmus paper results from tests in solutions with acidic alkaline and neutral pHs
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Gastric ulcer Gross specimen of part of a human stomach containing a perforated gastric (peptic) ulcer Ulcers are caused by excessive stomach acid (
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Dyspepsia and reflux Artwork of the effects of antacids in preventing acid reflux and dyspepsia (indigestion) The stomach is seen as a wire-frame mo
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Experimental cancer therapy bottle containing the monoclonal antibody p53 a tumour suppressing protein A normal p53 gene becomes activated in respo
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Influenza virus Artwork depicting the anatomy of an influenza virus (group Orthomyxovirus) such as the Beijing flu virus At centre the virus cont
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Influenza virus Artwork depicting the anatomy of an influenza virus (group Orthomyxovirus) such as the Beijing flu virus At centre the virus cont
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Litmus test for pH illustration
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Bottle and pellets of sodium hydroxide A reagent bottle of sodium hydroxide (NaOH caustic soda) solution and a watch glass containing sodium hydroxi
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Lassa virus particle and antibodies illustration The antibodies (pink) are binding to the viruss glycoprotein surface spikes (red and yellow) and n
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Lassa virus protein and antibodies illustration
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Lassa virus protein and antibodies illustration
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Artwork of the influenza virus which belongs to the Orthomyxoviridae family The virus is formed by a core of ribonucleic acid (RNA) the brown sphere
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False-colour images of reflected sunlight (left) and atmospheric sodium (right) on Mercury made at the Kitt Peak Solar Observatory over a period of 3
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False-colour transmission electron micrograph (TEM) featuring two elongated acinar cells of the exocrine human pancreas Arranged in rounded glands
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Small intestine lining Light micrograph of a section through the healthy lining of a human duodenum the uppermost part of the small intestine The l
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Duodenum secretory cells Coloured transmission electron micrograph (TEM) of a section through the human duodenum showing secretory cells of the surf
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Duodenum secretory cells Coloured transmission electron micrograph (TEM) of a section through the human duodenum showing secretory cells of the surf
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False-colour scanning electron micrograph (SEM) of intestinal villi in the duodenum These villi are long ridge-like folds in the wall of the duodenum
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False-colour scanning electron micrograph (SEM) of a section through the duodenum The duodenal wall has muscle layers (at far left brown) Long ridg
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Antibody Computer graphic of a molecule of immunoglobulin G1 a type of antibody protein that the immune system uses to fight infections Like all pr
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Antibody Computer graphic of a molecule of immunoglobulin G1 a type of antibody protein that the immune system uses to fight infections The molecul
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T cell dependent B cell activation computer artwork Invading pathogens (gold ovoids) are phagocytosed (engulfed) by macrophages a type of white blo
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Diphtheria antitoxin Inoculated horse having blood taken from its exterior jugular vein which will be used to treat diphtheria Diphtheria is an acu
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Decontamination foam testing View of a researcher studying two petri dishes during the testing of a decontamination foam Anthrax bacteria simulants
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