公开(公告)号：US20220381718A1

公开(公告)日：2022-12-01

申请号：US17680195

申请日：2022-02-24

Applicant: HRL Laboratories, LLC

Inventor： Adam GROSS ,  John VAJO ,  Jason GRAETZ

IPC: G01N27/04

Abstract: Some variations provide a system for sensing a chemical active in a coating, the system comprising: a coating disposed on a substrate; a chemical active contained within the coating, wherein the chemical active is mobile within the coating, and wherein the chemical active is ionically and/or electrically conductive; a first electrode and a second electrode configured to measure AC impedance within the coating; and an electrical meter configured in electrical communication with the first and second electrodes to read a signal corresponding to the AC impedance. Some methods comprise: pressing electrodes against the coating; reading out an impedance value; and converting the impedance value to a concentration of the chemical active in the coating. Other methods comprise: adding a solvent to a coating surface; pressing electrodes against a surface region; reading out an impedance value; and converting the impedance value to a concentration of the chemical active in the coating.

公开(公告)号：US20220225608A1

公开(公告)日：2022-07-21

申请号：US17713356

申请日：2022-04-05

Applicant: HRL Laboratories, LLC

Inventor： Adam GROSS ,  Andrew NOWAK ,  Ashley DUSTIN ,  Jason GRAETZ ,  John VAJO

IPC: A01N25/10 ,  C09D5/14 ,  A01N33/12

Abstract: An antimicrobial coating is disclosed that provides fast transport rates of biocides for better effectiveness to deactivate SARS-CoV-2 and other viruses or bacteria on common surfaces. Some variations provide an antimicrobial structure comprising: a solid structural phase comprising a solid structural material; a continuous transport phase that is interspersed within the solid structural phase, wherein the continuous transport phase comprises a solid transport material; and an antimicrobial agent contained within the continuous transport phase, wherein the solid structural phase and the continuous transport phase are separated by an average phase-separation length from about 100 nanometers to about 500 microns. The antimicrobial structure is capable of destroying at least 99.99% of bacteria and/or viruses in 10 minutes of contact. Many options are disclosed for suitable materials to form the solid structural phase, the continuous transport phase, and the antimicrobial agent.

公开(公告)号：US20210386059A1

公开(公告)日：2021-12-16

申请号：US17090968

申请日：2020-11-06

Applicant: HRL Laboratories, LLC

Inventor： Adam GROSS ,  Andrew NOWAK ,  Ashley DUSTIN ,  Jason GRAETZ ,  John VAJO

IPC: A01N25/10 ,  A01N33/12 ,  C09D5/14

Abstract: An antimicrobial coating is disclosed that provides fast transport rates of biocides for better effectiveness to deactivate SARS-CoV-2 and other viruses or bacteria on common surfaces. Some variations provide an antimicrobial structure comprising: a solid structural phase comprising a solid structural material; a continuous transport phase that is interspersed within the solid structural phase, wherein the continuous transport phase comprises a solid transport material; and an antimicrobial agent contained within the continuous transport phase, wherein the solid structural phase and the continuous transport phase are separated by an average phase-separation length from about 100 nanometers to about 500 microns. The antimicrobial structure is capable of destroying at least 99.99 wt % of bacteria and/or viruses in 10 minutes of contact. Many options are disclosed for suitable materials to form the solid structural phase, the continuous transport phase, and the antimicrobial agent.