Rapid prototyping of a novel and flexible paper based oxygen sensing patchviaadditive inkjet printing process

Abstract

A paper-based low cost and rapid prototypable flexible oxygen sensing patch was developed for the first time using a cost-efficient additive inkjet print manufacturing process for wearable, food packaging, pharmaceutical and biomedical applications.

Food Sensors: Challenges and Opportunities

“…Drawing inspiration from biological olfactory systems, many food sensors have been designed for inclusion into packaging and processing to indicate food quality by monitoring gas composition. Common markers for gas‐targeting food sensors include carbon dioxide, [ 31,43 ] oxygen, [ 44–48 ] volatile organic compounds (VOCs), [ 49–52 ] and biogenic amines (BAs). [ 21,53–56 ]…”

“…Drawing inspiration from biological olfactory systems, many food sensors have been designed for inclusion into packaging and processing to indicate food quality by monitoring gas composition. Common markers for gas-targeting food sensors include carbon dioxide, [31,43] oxygen, [44][45][46][47][48] volatile organic compounds (VOCs), [49][50][51][52] and biogenic amines (BAs). [21,[53][54][55][56] Carbon dioxide is a product of bacterial metabolism and is also a preservative at high concentrations in modified atmosphere food packaging.…”

Recent Progress in Manufacturing Techniques of Printed and Flexible Sensors: A Review

“…By varying the density of the inkjet-printed MnO 2 deposited, the generation of the oxygen concentration was controlled. The fluorescence property of inkjet-printed ruthenium on the paper substrate facilitates contact less measurement of oxygen at a wound site (Figure 3c) [114]. This multi-functional smart wound healing bandage is designed as a wound dressing platform that offers various properties of wound dressings (e.g., mechanical strength and flexibility) while featuring additional ones not found in conventional wound dressings (e.g., on-site generation of oxygen, delivery of oxygen or other therapeutics, and integration of sensors on the same substrate).…”

“…Figure 3. (a) Schematic of inkjet printing process; (b) flexible paper-based bandage with continuousoxygen delivery and sensing capabilities developed to treat the chronic wounds: (i) overview illustration of the patch in use for foot ulcer applications, (ii) cross-sectional view of oxygen generation and sensing patch and wound area, (iii) mechanisms for generating and sensing oxygen on a flexible smart wound dressing[70]; (c) paper-based oxygen sensors[114], Reprinted with permission from RSC; (d) fully inkjet-printed metal-insulator-metal capacitors[116]; (e) graphene-based micro-supercapacitors using electrochemically exfoliated graphene as electrodes and current collectors, Reprinted with permission from[117], © American Chemical Society; (f) multilayered flexible organic Schottky diode on PET substrate[118], © IOP Publishing, Reproduced with permission from IOP; (g) flexible wireless power transfer module (42 × 42 mm 2 ), Reprinted from[119] with permission from Elsevier; (h) microfluidic-based sensing platforms with inkjet-printed Ag electrodes (3.8" × 2.5" × 0.2")[120], © IEEE, Reprinted with permission from IEEE Sensors Journal.…”

Extruded phosphorescence based oxygen sensors for large-scale packaging applications

“…Current O2 sensors are fabricated by the two main methods. One method involves dissolving sensor components (dye and carrier polymer) in an organic solvent, then casting or printing this 'cocktail' on a substrate and allowing it to dry and produce solidstate photoluminescent coating [9,10]. However, this multi-step process induces high mechanical stress within the sensor coating due to large volume reduction upon drying.…”