Printed Bio-Sensors

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DuPont produces a range of screen printable inks and silicone adhesive and films, utilizing various metallurgies and organic systems for use in biosensors. These materials are specifically designed for use in medical monitoring, diagnostics, drug delivery, food and environmental sensors.

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Bio-sensor inks

Application	Composition	Product Code	Sheet Resistivity (mΩ/sq/mil)	Features
Silver
Biomedical	• Silver	5000	8	Signal lines and sensor pads
Biomedical	• Silver	5025	12-15	Signal lines and sensor pads
Biomedical	• Silver	5028	<12	Signal lines and sensor pads
Biomedical	• Ag:AgCl	5883		Stable reference electrodes 75:25 – 75:25 +1% C – 65:35 – 32:68 ratio
Biomedical	• Ag:AgCl	5890		Stable reference electrodes 75:25 – 75:25 +1% C – 65:35 – 32:68 ratio
Biomedical	• Ag:AgCl	5874	70-90	Stable reference electrodes 75:25 – 75:25 +1% C – 65:35 – 32:68 ratio
Biomedical	• Ag:AgCl	5876		Stable reference electrodes 75:25 – 75:25 +1% C – 65:35 – 32:68 ratio
Carbon
Biomedical	• Carbon	BQ242	20 000-25 000 @0,5mils	High sensitivity electrodes
Biomedical	• Carbon	BQ221	<100 000	High sensitivity electrodes
Biomedical	• Carbon	BQ226		High sensitivity electrodes
Gold
Biomedical	• Gold	BQ331	500	Inert surface electrodes
Platinum
Biomedical	• Platinum + Carbon	7112	200 000-400 000	High activity electrodes
Biomedical	• Platinum	BQ321	5 000-10 000	High sensitivity electrode
Dielectric
Biomedical	• Dielectric	BQ10		Flexible insulator: Thermal – UV curable
Biomedical	• Dielectric	5036		Flexible insulator: Thermal – UV curable
Adhesive
Biomedical	• Adhesive	Liveo™ MG-2 PSA		Pressure Sensitive Adh. for reliable patch wear on body
Biomedical	• Adhesive	Liveo™ MG 7-SSA		Soft skin adhesive for gentle patch wear on human body
Biomedical	• Conductive tape	1-3150		Soft Silicone conductive tapes
Biomedical	Encapsulation	MDX4-4210		2 components pourable biomedical elastomer
Biomedical	Substrate	Liveo™ 7-4107		Silicone membrane 75µm
Biomedical	TPU Tape	TBD		TPU film with SSA Adhesive on one side

Piezo-resistive inks

Force-sensing resistors consist of a conductive polymer, which changes resistance in a predictable manner following application of force to its surface. Applying a force to the surface of the sensing film causes particles to touch the conducting electrodes, changing the resistance of the film. As with all resistive based sensors, force-sensing resistors require a relatively simple interface and can operate satisfactorily in moderately hostile environments. Compared to other force sensors, the advantages of FSRs are their size (thickness typically less than 0.5 mm), low cost and good shock resistance.

You can create such functionnalities with our blendable inks:

Substrate	Carbon	Dielectric	Blending ratio	Additionnal
PET	7082M	5036/3571	60:40	dielectric 8153 for spacer

Bio-sensor inks

Piezo-resistive inks

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