title: Phosphorescent oxygen sensors based on nanostructured polyolefin substrates.
abstract: New phosphorescent oxygen-sensitive materials based on nanostructured high density polyethylene and polypropylene films are described. The polymer substrates undergo treatment by a solvent crazing process to create a well-developed network of controlled, nanometer-size pores. Indicator dye molecules are then embedded by physical entrapment in such nanostructures which subsequently can be healed. Such sensors demonstrate improved working characteristics and allow simple, cost-efficient production and disposable use. They are well suited for large-scale applications such as nondestructive control of residual oxygen and "smart" packaging.
authors.affiliation: Biochemistry Department, Cavanagh Pharmacy Building, University College Cork, Cork, Ireland.
authors.forename: Ross N
authors.initials: RN
authors.lastname: Gillanders
authors.forename: Olga V
authors.initials: OV
authors.lastname: Arzhakova
authors.forename: Andreas
authors.initials: A
authors.lastname: Hempel
authors.forename: Alla
authors.initials: A
authors.lastname: Dolgova
authors.forename: Joe P
authors.initials: JP
authors.lastname: Kerry
authors.forename: Larisa M
authors.initials: LM
authors.lastname: Yarysheva
authors.forename: Nikolai F
authors.initials: NF
authors.lastname: Bakeev
authors.forename: Alexander L
authors.initials: AL
authors.lastname: Volynskii
authors.forename: Dmitri B
authors.initials: DB
authors.lastname: Papkovsky
mesh_terms: D015374:Biosensing Techniques / Q000379:methods*; D002611:Cheese / Q000032:analysis; D005456:Fluorescent Dyes / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D010100:Oxygen / Q000032:analysis* / Q000737:chemistry; D010758:Phosphorus / Q000737:chemistry*; D011090:Polyenes / Q000737:chemistry*; D011095:Polyethylenes / Q000737:chemistry; D011126:Polypropylenes / Q000737:chemistry
chemical_list: D005456:Fluorescent Dyes; D011090:Polyenes; D011095:Polyethylenes; D011126:Polypropylenes; D010758:Phosphorus; C035051:PL 732; D010100:Oxygen