Palo Alto Research Center Inc.

Antonio Williams

Gabriel Iftime

Warren Bruce Jackson

Palghat Srinivas Ramesh

Ashish V Pattekar

Joerg Martini

Jessica Louis Baker Rivest

Mahati Chintapalli

Sean Emerson Doris

Eric Cocker

Eli Bulger

Crystal Pham

A colorimetric sensor has a first material deposited on a surface, and sensing particles on a surface of the first material, wherein the sensing particles comprise sensing species dispersed into porous host structures, such that at least a portion of the sensing particles is exposed to an ambient environment, wherein the first material attaches the sensing particles to surface. A method of forming a colorimetric sensor including depositing a first material onto a substrate, providing porous sensing particles, wherein the sensing particles comprise sensing species dispersed into a porous host structure, and embedding the porous sensing particles onto a surface of the deposited first material, wherein the first material attaches the sensing particles to the substrate such that at least a portion of the sensing particles is exposed to an ambient environment.

Printed sensor with vibrant colorimetric particles

A system includes an unpatterned heater configured to pre-heat a thermochromic coating disposed on a substrate to a first temperature. The thermochromic coating has a threshold temperature at which the thermochromic material undergoes a color change. The system also includes a patterned heater comprising multiple heating elements configured to heat selected pixels of the thermochromic coating to a temperature at or above the threshold temperature according to a predetermined pattern. An air gap is maintained between the multiple heating elements and the thermochromic material while the patterned heater is heating the thermochromic material. The air in the air gap heated to a second temperature.

Non-contact thermal printing of color thermochromic materials

Growing community of inventors

Palo Alto, CA, United States of America

Antonio Williams