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Updated: Jan 13, 2026

Negative Additive Manufacturing of Complex Shaped Boron Carbides

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Published on: September 18, 2018

Labyrinthine Microstructures with a High Dipole Moment Boron Complex for Molecular Physically Unclonable Functions.

Tevhide Ayça Yıldız¹, N Burak Kiremitler^2,3, Nilgun Kayaci¹

¹Department of Materials Science and Nanotechnology Engineering, Abdullah Gül University, Kayseri 38080, Türkiye.

ACS Applied Materials & Interfaces

|October 29, 2025

Summary

Researchers developed a novel molecule, InIm-BF2, to create unique, high-entropy labyrinthine patterns for physically unclonable functions (PUFs). This breakthrough offers enhanced security for cryptography and anticounterfeiting applications.

Keywords:

anticounterfeiting dipolar boron complex high dipole moment labyrinthine microstructure physically unclonable functions

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Area of Science:

Materials Science
Organic Chemistry
Cryptography

Background:

Physically unclonable functions (PUFs) are crucial for secure authentication and anticounterfeiting.
Developing novel molecular materials with advanced encoding properties is essential for next-generation PUFs.

Purpose of the Study:

To design and fabricate a new molecular material for high-entropy PUF patterns.
To investigate the formation of unique labyrinthine structures using this material.
To validate the PUF characteristics of the fabricated patterns.

Main Methods:

Synthesis of a high dipole-moment small molecule, InIm-BF2.
Fabrication of thin films using spin-coating and thermal annealing.
Characterization of labyrinthine patterns via image analysis and deep learning.

Main Results:

Successful synthesis of InIm-BF2 with specific π-stacking and intermolecular interactions.
Formation of intricate, interconnected labyrinthine patterns (≈50-100 μm) via a facile two-step process.
Demonstration of excellent PUF characteristics and high entropy in the labyrinthine patterns, authenticated by deep learning.

Conclusions:

A facile method for fabricating high-entropy molecular PUF patterns using InIm-BF2 was established.
The unique labyrinthine structures exhibit promising security features for anticounterfeiting and cryptography.
Insights into designing molecular materials for advanced security applications were provided.