DUAL FLEXIBLE CELLULOSE-BASED MATRIX FOR ELECTRONICS AND MICROFLUIDICS INTEGRATION

• Main Authors: NUNES PEREIRA, Luís Miguel, MENDES DE SOUSA, Antonio Paulo, FERRÃO PAIVA MARTINS, Rodrigo, DA SILVA PEDROSA, Jorge Filipe, DE OLIVEIRA RODRIGUES PINTO, Paula Cristina, CORREIA FORTUNATO, Elvira Maria, ALVES RAMOS RODRIGUES, Ricardo Jorge
• Format: Patent
• Language: English; French; German
• Published: 28.02.2024
• Subjects: ELECTRICITY; IMPREGNATING OR COATING OF PAPER; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PERFORMING OPERATIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; TEXTILES; TRANSPORTING; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G

This invention consists of a renewable and biodegradable, flexible, lightweight and miniaturized, cellulose-based, double layered, double structure and of different degree of compactness matrix capable of simultaneously integrating microfluidic functions as well as electronic and electrochemical components. One of the layers of the double layered cellulosic matrix consists of a porous structure, with pores and hydrophilic affinity suitable for fluid flow, ensuring microfluidic functionality. The second layer of the double layered cellulosic matrix has a highly compact structure, shown by an adequate level of surface smoothness to ensure a continuous printing and integration of electronic devices and circuits.The matrix presented has its application on the production of sensors in the most diverse segments, namely in the medical, pharmaceutical, food, packaging and distribution, safety, agricultural, environmental and veterinary areas.