Exhibit 23.3
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated March 14, 2025 with respect to the consolidated financial statements of Nexalin Technology, Inc. (the “Company”) included in the Annual Report on Form 10-K of the Company for the year ended December 31, 2025.
| /s/ Marcum LLP |
Marlton, NJ
September 22, 2026