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a vial grabbed by autosampler of gas chromatography

During chemistry lectures, students listen to lectures and do practical experiments in the chemistry laboratory. Portraits of professor and students, multi racial composition.

Abstract micrograph of a bract from a Protea flower, with polarization and post-processing color modifications at 40x.

Aligned amino acid sequences of various individuals. The amino acids were derived from their three bases in the genetic code and seen in a DNA sequence. This type of alignment is useful in determining the relatedness of individuals. In this case the sequences were derived from the ribosomal genes of a somewhat obscure fungus not known to be of any commercial, industrial or other value.

Neodymium is a rare earth element. The crystals are precipitated from a solution on a microscope slide and photographed in polarized light.

Bacteria Streptococcus thermophilus,Group A Streptococcus,Erythrogenic toxin

A background photo with the snow screen of an old tv

Abstract technological design of an artificial molecular structure in many colors. Horizontal wide composition.

$DESI is the Drug Efficacy Study of Medical Sciences. A man holding a sample holder wearing protective clothing.\nScientists who work with Mass spectrometry (MS) is an analytical technique that measures the mass-to-charge ratio of ions. The study into diabetes, Parkinson's, neurodegenerative disease, Alzheimer's and heart disease.$

Abstract image of stylized models of DNA chains on a blurred green background

Mapping of asbestos-cement roof with graph from the Multispectral Infrared and Visible Imaging Spectrometer sensor - concept with asbestos airborne fibers

A man is manipulating electronic instruments in the laboratory

Abstract micrograph of ascorbic acid crystals in a bewildering array of shapes and colors.

Aligned DNA nucleotide sequences displayed on a laptop computer screen. A genetic mutation can be seen in three of the sequences.

Animation figures. Numbers animation. From 1 to 1000. Numbers are digital.

Abstract nano molecular structure

During chemistry lectures, students listen to lectures and do practical experiments in the chemistry laboratory. Portraits of professor and students, multi racial composition.

pie chart diagram of the composition of the atmosphere on planet Earth. Illustration of the composition of the atmosphere.

macrophotography of salt crystals in water backlit

Evolution of nanotechnology and self-proliferation of therapeutic agents

Crystals of soy sauce under the microscope.

Bold Colours,Nature, Abstract vibrant pink,red,blue pantone backgrounds

Dopamine is released when your brain is expecting a reward. Human brain producing dopamine molecule 3d rendering

3d rendering of Fluid painting, abstract colorful liquid texture background.

An illustration of discontinuous spectrum, occurs when excited atoms emit light of certain wavelengths,

Black rough grunge old wall in blur. Abstract dark grey background

Particles, medical concept

Magnesium sulfate under a microscope and in polarized light.

In vitro bacterial culture

Free Images: "bestof:Isatin ms nist.gif en Screen shot of the Mass Spectrum of Isatin as found in the NIST WebBook http //webbook nist gov/chemistry/ NIST National Institute for"

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