Phosphorescent oxygen sensors based on nanostructured polyolefin substrates.
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.
Gillanders
Ross N
RN
Biochemistry Department, Cavanagh Pharmacy Building, University College Cork, Cork, Ireland.
Arzhakova
Olga V
OV
Hempel
Andreas
A
Dolgova
Alla
A
Kerry
Joe P
JP
Yarysheva
Larisa M
LM
Bakeev
Nikolai F
NF
Volynskii
Alexander L
AL
Papkovsky
Dmitri B
DB
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
D005456:Fluorescent Dyes; D011090:Polyenes; D011095:Polyethylenes; D011126:Polypropylenes; D010758:Phosphorus; C035051:PL 732; D010100:Oxygen