Molecule World™ for iPad


Scientists of all ages can use Molecule World™ to explore thousands of fascinating biological and chemical structures easily on an iPad®.

Get the Molecule World iPad app today! 

Molecule World Makes it easy to:

  • View and manipulate chemical structures with your fingers
  • View sequences and structures of proteins and nucleic acids
  • Show, dim, or hide any chain, residue, or other chemical
  • View disulfide bonds
  • Use rainbow coloring to show orientation and protein folding
  • Use coloring styles to show charge, hydrophobicity, or location in a protein
  • Select nearby residues to show active sites or epitopes

Molecule World Collections:  Molecule World structure collections allow students to investigate ideas and concepts in biology and chemistry.  Download a collection and work with it anywhere.  


  • A set of popular protein, DNA, RNA, and chemical structures for biology teaching that include hemoglobin, antibodies, restriction enzymes, tRNA, caffeine, and more. 
  • View molecular and chemical structures in 3D
  • Manipulate structures easily with your fingertips
  • Color structures by molecule, residue, or chemical properties
  • Draw structures as ball & stick models, space fill models, or tubes
  • Use the color key to identify residues or properties
  • Work with structures from the NCBI, PDB, and PubChem in Cn3D, PDB, and SDF formats

Take a look at our blog post, Molecule World combines art, science, and the joy of discovery, for some fun ideas and things to do with 23S ribosomal RNA.  With Molecule World, you can learn about chemistry, biochemistry, and molecular biology through hands-on exploration with 3D molecules.

Questions about using Molecule World?  See Molecule World questions.

Molecule World™ was developed with funding from the National Science Foundation (SBIR IIP 1315426).  Any opinions, findings, conclusions, or recommendations expressed on this website are those of the authors and do not necessarily represent the official views, opinions, or policy of the National Science Foundation.

To learn about proteins visit Biology Online: Protein.

View all: Molecule World

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