IP Library › Granted Patent US 12,354,835
Granted Patent B2
US 12,354,835 · App. 17/314,928 · Granted Jul 8, 2025

Systems and methods for selective molecular ion deposition

Inventors: Sandilya V. B. Garimella (Richland, WA); Yehia M. Ibrahim (West Richland, WA); Ailin Li (Richland, WA); Richard D. Smith (Richland, WA)
Assignee: Battelle Memorial Institute
H01J37/3178H01J27/022H01J37/3007B33Y10/00B33Y30/00G01N27/622G01N27/623H01J49/00H01J49/004H01J49/06
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Quick Facts
Patent No.
US 12,354,835
App. No.
17/314,928
Granted
Jul 8, 2025
Kind
B2
Abstract

Methods include directing a group of ions through a separation region of an ion manipulation apparatus, separating the group of ions in the separation region based on ion mobility, selecting a subset of the group of ions based on a dependence between ion mobility and ion arrival time of the separated ions at a deposition switch of the ion manipulation apparatus, and depositing the selected subset of ions on a substrate. Related systems and ion manipulation apparatus are disclosed. Also disclosed are methods and system that provide concurrent ion accumulation and ion separation in coupled and switchable electrode regions using traveling wave electric fields.

Claims (32)

1. A method, comprising:

directing a group of ions through a separation region of an ion manipulation apparatus;

separating the group of ions in the separation region based on ion mobility;

reintroducing the group of ions having traveled at least partially through the separation region back into the separation region;

selecting a subset of the group of ions based on a dependence between ion mobility and ion arrival time of the separated ions at a deposition switch of the ion manipulation apparatus; and

depositing the selected subset of ions on a substrate.

2. The method of claim 1 , wherein the selecting the subset of ions based on the ion arrival time at the deposition switch comprises selecting one or more structures of a molecule based on predetermined expected ion arrival times at the deposition switch for the selected one or more structures.

3. The method of claim 1 , wherein the ions of the group of ions have a common mass-to-charge ratio and/or mass spectrum peak.

4. The method of claim 1 , wherein the selected subset of ions comprises fewer than all of a plurality of ion structures included in the group of ions.

5. The method of claim 1 , wherein the selected subset of ions comprises fewer than all of a plurality of isomers included in the group of ions.

6. The method of claim 1 , wherein the selecting the subset of the group of ions comprises selecting from an ion mobility spectrum fewer than all of a plurality of ion mobility peaks corresponding to the selected subset of ions.

7. The method of claim 1 , further comprising, before selecting the subset of the group of ions:

directing the group of ions to an ion receiver coupled to an ion exit of the ion manipulation apparatus and configured to provide mass selection of the ions from which the subset of the group of ions is selected.

8. The method of claim 1 , wherein the selecting a subset of the group of ions comprises switching the deposition switch to direct the separated ions to a deposition region based on the ion arrival time.

9. The method of claim 1 , wherein the group of ions is a first group of ions earlier received from an accumulation region coupled to the separation region.

10. The method of claim 9 , further comprising:

accumulating a second a group of ions in the accumulation region while separating the first group of ions in the separation region.

11. The method of claim 1 , further comprising:

compressing at least a portion of the group of ions separated in the separation region.

12. The method of claim 1 , further comprising:

separating the separated ions based on ion polarity using an applied voltage difference by separating ions of different polarity spatially in a common channel of the ion manipulation apparatus and/or by separating ions of different polarity to propagate along different polarity-specific paths.

13. The method of claim 1 , wherein depositing the selected subset ions comprises depositing the separated ions at predetermined locations on the substrate.

14. The method of claim 1 , wherein depositing the selected subset ions comprises depositing the separated ions at a common location on the substrate.

15. The method of claim 1 , wherein depositing the selected subset ions comprises printing three-dimensional structures using the separated ions.

16. The method of claim 1 , wherein depositing the selected subset ions comprises depositing the separated ions on different respective substrates.

17. The method of claim 1 , further comprising, confirming the selection of the subset by directing other ions of the group of ions that are not part of the subset to a mass spectrometer and comparing a detected time-dependent ion arrival time profile from the mass spectrometer with an expected time-dependent ion arrival time profile.

18. A method, comprising:

directing a group of ions through a separation region of an ion manipulation apparatus;

separating the group of ions in the separation region based on ion mobility;

compressing at least a portion of the group of ions separated in the separation region;

selecting a subset of the group of ions based on a dependence between ion mobility and ion arrival time of the separated ions at a deposition switch of the ion manipulation apparatus; and

depositing the selected subset of ions on a substrate.

Assignments (3)
CONFIRMATORY LICENSE Recorded Aug 25, 2025
From: BATTELLE MEMORIAL INSTITUTE
To: U. S. DEPARTMENT OF ENERGY
Reel/Frame 072112/0899 →
CONFIRMATORY LICENSE Recorded Jun 15, 2021
From: BATTELLE MEMORIAL INSTITUTE, PACIFIC NORTHWEST DIVISION
To: U.S. DEPARTMENT OF ENERGY
Reel/Frame 056541/0791 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 10, 2021
From: GARIMELLA, SANDILYA V.B.; IBRAHIM, YEHIA M.; LI, AILIN; SMITH, RICHARD D.
To: BATTELLE MEMORIAL INSTITUTE
Reel/Frame 056182/0148 →
Continuity (2)
Provisional Application 63021582 · May 7, 2020
Related Publication 20210351003A1 · Nov 11, 2021
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