Loss-free liquids manipulation platform

Patent metadata

Field	Value
Publication number	US-11919003-B2
Application number	US-202217577472-A
Country	US
Kind code	B2
Filing date	Jan 18, 2022
Priority date	Jan 22, 2021
Publication date	Mar 5, 2024
Grant date	Mar 5, 2024

Abstract

Disclosed is a device for moving a liquid in a substantially loss-free operation, the device made of at least a photothermal film; a pyroelectric crystal over the photothermal film; and a superomniphobic surface over the pyroelectric crystal, wherein the device is configured to move the liquid in the substantially loss-free operation with a beam of light.

First claim

What is claimed is:

1. A device for moving a liquid in a substantially loss-free operation, comprising:
a tri-layered substrate, further comprising:
a photothermal film;
a pyroelectric crystal located on an upper surface of the photothermal film; and
a superomniphobic surface located on an upper surface of the pyroelectric crystal,

wherein the device is configured to move the liquid over the superomniphobic surface in the substantially loss-free operation with a beam of light.

2. The device according to claim 1 , wherein the superomniphobic surface comprises a silica nanosphere network.

3. The device according to claim 1 , wherein the photothermal film comprises a graphene-polymer composite configured to sense beam of light and generate a localized and uneven thermogenesis.

4. The device according to claim 1 , wherein the pyroelectric crystal comprises a lithium niobate wafer.

5. The device according to claim 1 , wherein the beam of light comprises infrared light.

6. The device according to claim 1 , wherein the liquid is an organic liquid, an inorganic liquid, or a biological substance.

7. The device according to claim 1 , wherein the superomniphobic surface is configured to interface with the liquid in a substantially frictionless manner via maintaining a Cassie state and substantially prevent liquid residue thereon as a result of moving the liquid thereon.

8. A measurement instrument comprising the device according to claim 1 .

9. A liquid transfer apparatus comprising the device according to claim 1 .

10. An apparatus for moving a liquid in a substantially loss-free operation, comprising:
a tri-layered substrate, further comprising:
a photothermal film base layer;
a pyroelectric crystal located on an upper surface of the photothermal film; and
a superomniphobic surface located on an upper surface of the pyroelectric crystal, the superomniphobic surface configured to interface with the liquid; and

a light generation component configured to irradiate a beam of light onto the superomniphobic surface.

11. The apparatus according to claim 10 , wherein the light generation component irradiates an infrared beam of light onto the superomniphobic surface.

12. The apparatus according to claim 10 , further comprising:
a movement component configured to at least one of:
move the light generation component relative to the superomniphobic surface to thereby move the liquid over the superomniphobic surface; or
move a structure including the superomniphobic surface relative to the light generation component to thereby move the liquid over the superomniphobic surface.

13. A method of transporting a liquid in a substantially loss-free manner, comprising:
irradiating a beam of light onto an upper surface of a superomniphobic layer, wherein the superomniphobic layer is located on a pyroelectric crystal, and the pyroelectric crystal is further located on a photothermal film, whereby the liquid is present on the upper surface of the superomniphobic layer not in contact with the pyroelectric crystal.

14. The method according to claim 13 , wherein
transporting the liquid comprises at least one of moving the liquid, merging the liquid, dispensing the liquid, and splitting the liquid into at least two fractions.

15. The method according to claim 13 , further comprising:
moving the beam of light relative to the upper surface of the superomniphobic layer to thereby move the liquid across the upper surface of the superomniphobic layer.

Assignees

• Univ Hong Kong

Inventors

• Wang Liqiu
• Li Wei
• Tang Xin

Classifications

• B01L3/502784 Primary

  specially adapted for droplet or plug flow, e.g. digital microfluidics · CPC title

• B01L3/50273

  characterised by the means or forces applied to move the fluids · CPC title

• B01L2300/0887

  Laminated structure · CPC title

• B01L2300/0896

  Nanoscaled · CPC title

• B01L2300/12

  Specific details about materials · CPC title