Controlling nano- and microfilament morphology by strategically placing chiral centers in the side chains of bent-core molecules

Ashwathanarayana Gowda, Gourab Acharjee, Suraj Kumar Pathak, Grace A. R. Rohaley, Asmita Shah, Robert P. Lemieux, Marianne E. Prévôt and Torsten Hegmann

Mater. Horiz., 2024, 11, 5550
DOI: 10.1039/D4MH01243G

Organic chiral nano- and microfilaments: types, formation, and template applications

Ashwathanarayana Gowda, Suraj Kumar Pathak, Grace A. R. Rohaley, Gourab Acharjee, Andrea Oprandi, Ryan Williams, Marianne E. Prévôt and Torsten Hegmann

Mater. Horiz., 2024, 11, 316
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Structural polymorphism in bent-core liquid crystals: from helical nanofilaments to heliconical-layered microcylinders with light-responsive properties

Hyewon Park, HyeonJun Kim, Yeongsik Kim, Hyungju Ahn, Joanna M. Wolska, YongJoo Kim and Dong Ki Yoon

Mater. Horiz., 2026, 13, 1896
DOI: 10.1039/D5MH01905B

Photonic physically unclonable functions using randomly positioned aluminum nanoholes

Juhan Lee, Seokhyeon Hong, Youngsoo Kim, Seung Hyeon Hong, Bokyung Kim and Soon-Hong Kwon

Optics Communications, 2025, 575, 131273
DOI: 10.1016/j.optcom.2024.131273

Macroscopically customizable and unclonable hierarchical pattern lables with simple encapsulation for multilevel encryption and intelligent authentication

Jingru Wang, Yanyan Li, Jiaxin Yang, Yang Li and Feng Song

Applied Materials Today, 2025, 44, 102729
DOI: 10.1016/j.apmt.2025.102729

Physical Unclonable Functions with Hyperspectral Imaging System for Ultrafast Storage and Authentication Enabled by Random Structural Color Domains

Xiaofeng Lin, Quhai Li, Yuqi Tang, Zhaohan Chen, Ruilian Chen, Yingjuan Sun, Wenjing Lin, Guobin Yi and Quan Li

Advanced Science, 2024, 11
DOI: 10.1002/advs.202401983

Lattice Transformation-Induced Retroreflective Structural Colors

Boru Wei, Zekun Zhang, Dongpeng Yang, Dekun Ma, Yuqi Zhang and Shaoming Huang

ACS Appl. Mater. Interfaces, 2023, 15, 47350
DOI: 10.1021/acsami.3c07980

Near-Infrared Circularly Polarized Luminescent Physical Unclonable Functions

Jiang Huang, Xue Jin, Xuefeng Yang, Tonghan Zhao, Helou Xie and Pengfei Duan

ACS Nano, 2024, 18, 15888
DOI: 10.1021/acsnano.4c03136

Multiplex Optical Unclonable Functions: Advances and Perspectives in Optics and Photonics for Hardware Security

Srinivas Gandla, Changgyun Moon, Jung Woo Leem, Jinsik Yoon, Hee Seong Yun, Min Seok Kim, Dongmin Kim, Sunjong Lee, Yao Yao, Dimitris Alexandropoulos, Young Min Song, Dong Ki Yoon, Wook Park, Young L. Kim and Sunkook Kim

ACS Nano, 2025, 19, 27033
DOI: 10.1021/acsnano.5c01917

Pixelated Physical Unclonable Functions through Capillarity-Assisted Particle Assembly

Zazo Cazimir Meijs, Hee Seong Yun, Pascal Fandre, Geonhyeong Park, Dong Ki Yoon and Lucio Isa

ACS Appl. Mater. Interfaces, 2023
DOI: 10.1021/acsami.3c09386

Optical-Anisotropy-Exploited Irreproducible Functions Using Microwrinkles

Kitae Kim and Jun-Hee Na

ACS Appl. Opt. Mater., 2024, 2, 2435
DOI: 10.1021/acsaom.4c00046

Planar Spin Glass with Topologically Protected Mazes in the Liquid Crystal Targeting for Reconfigurable Micro Security Media

Geonhyeong Park, Yun‐Seok Choi, S. Joon Kwon and Dong Ki Yoon

Advanced Materials, 2023, 35
DOI: 10.1002/adma.202303077

Tunable Circularly Polarized Luminescence via Chirality Induction and Energy Transfer from Organic Films to Semiconductor Nanocrystals

Sylwia Parzyszek, Jacopo Tessarolo, Adrián Pedrazo-Tardajos, Ana M. Ortuño, Maciej Bagiński, Sara Bals, Guido H. Clever and Wiktor Lewandowski

ACS Nano, 2022, 16, 18472
DOI: 10.1021/acsnano.2c06623

Dual-color center diamond for concealable physically unclonable functions

Fuhang Jiao, Junlu Sun, Chaonan Lin, Ying Xiao, Zhenfeng Zhang, Yuan Deng, Haizhong Guo, Shunfang Li, Lijun Wang, Chong-Xin Shan and Lin Dong

Nano Research, 2025, 18, 94907905
DOI: 10.26599/NR.2025.94907905

Paintable Physical Unclonable Functions using DNA

Soon Mo Park, Geonhyeong Park and Dong Ki Yoon

Advanced Materials, 2023, 35
DOI: 10.1002/adma.202302135

Chiroptical Synaptic Perovskite Memristor as Reconfigurable Physical Unclonable Functions

HoYeon Kim, Kyuho Lee, Guangtao Zan, EunAe Shin, Woojoong Kim, Kaiying Zhao, Gyumin Jang, Jooho Moon and Cheolmin Park

ACS Nano, 2025, 19, 691
DOI: 10.1021/acsnano.4c11753

Ultralow‐Voltage Frequency Tunning of Liquid Crystal‐Based GHz Antenna via Nanoscratching Method

Changjae Lee, Jinki Park, Ye‐Eun Chi, Youngin Yoo, Seong‐Ook Park and Dong Ki Yoon

Adv Materials Technologies, 2024, 9
DOI: 10.1002/admt.202301859

A guide for assessing optically imaged physically unclonable functions for authentication

Ella Mann-Andrews, Thomas McGrath, Blake Halliday and Robert James Young

Applied Physics Reviews, 2025, 12
DOI: 10.1063/5.0253691

Spatial Control of Chiral Self‐Assembly and Lithographic Applications in Liquid Crystal Polymer Network

Changjae Lee, Wentao Tang, Fumito Araoka, Jesse G. Park, Rui Zhang and Dong Ki Yoon

Advanced Materials, 2025, 37
DOI: 10.1002/adma.202510782

Quasi-ordered plasmonic metasurfaces with unclonable stochastic scattering for secure authentication

Gyurin Kim, Doeun Kim, JuHyeong Lee, Juhwan Kim, Se-Yeon Heo, Young Min Song and Hyeon-Ho Jeong

Nat Commun, 2025, 16
DOI: 10.1038/s41467-025-61570-y

Cyberattack‐Resistant Cholesteric Liquid Crystal‐Based Physical Unclonable Function Keys

Mauro Daniel Luigi Bruno, Antonio Ferraro, Giovanna Palermo, Riccardo Cristoforo Barberi, Albert Schenning and Maria Penelope De Santo

Advanced Photonics Research, 2026, 7
DOI: 10.1002/adpr.202500293

Physical Unclonable Functions Employing Circularly Polarized Light Emission from Nematic Liquid Crystal Ordering Directed by Helical Nanofilaments

Jun-Sung Park, Jae-Jin Lee, Yong-Jun Choi, Tae-Woong Moon, Seunghyun Kim, Seungwoo Cho, Haeun Kang, Dong Ha Kim, Jongwook Park and Suk-Won Choi

ACS Appl. Mater. Interfaces, 2024, 16, 7875
DOI: 10.1021/acsami.3c17682

Strengthening Multi‐Factor Authentication Through Physically Unclonable Functions in PVDF‐HFP‐Phase‐Dependent a‐IGZO Thin‐Film Transistors

Youngmin Han, Subin Lee, Eun Kwang Lee, Hocheon Yoo and Byung Chul Jang

Advanced Science, 2024, 11
DOI: 10.1002/advs.202309221

Timed Physical Password or Authentication Keys

Andrew Martin, Daisy J. Kiptoo, David S. Kanoy, Shixuan Li, Chuanshen Du, Manish Kumar, Alana Pauls, Sid Pathak, Paul Bogdan, Aydin Aysu and Martin Thuo

ACS Appl. Mater. Interfaces, 2025, 17, 37257
DOI: 10.1021/acsami.5c06006

Emerging Trends in Nanophotonic Systems for Sustainable and Resilient Societies

Hyun Min Kim, Doeun Kim, Gyurin Kim, Juhwan Kim, JuHyeong Lee, Jiyeong Ma, Tung‐Chun Lee and Hyeon‐Ho Jeong

Advanced Sensor Research, 2026, 5
DOI: 10.1002/adsr.202500138

Dynamic Physical Unclonable Function Relying on Lasing Polarization

Xinyu Gao, Wangqi Mao, Hu Wang, Hongxing Dong, Shuang Liang, Wei Xie, Yuchuan Shao and Long Zhang

ACS Photonics, 2024, 11, 2263
DOI: 10.1021/acsphotonics.4c00071

Random and unpredictable optical textures in biobased self-assembled ionogels for dynamic anti-counterfeiting tags

Susana I. C. J. Palma, Efthymia Ramou and Ana C. A. Roque

Commun Mater, 2025, 6
DOI: 10.1038/s43246-025-00940-x

Physically Unclonable Holographic Encryption and Anticounterfeiting Based on the Light Propagation of Complex Medium and Fluorescent Labels

Rui Xu, Ming Feng, Jinyue Xie, Xu Sang, Jiaxin Yang, Jingru Wang, Yan Li, Adnan Khan, Lisa Liu and Feng Song

ACS Appl. Mater. Interfaces, 2024, 16, 2888
DOI: 10.1021/acsami.3c14571

Cholesteric Liquid Crystal‐Mediated Chiral Plasmonic Films with Strong Chiroptical Response, Dynamic Tunability, and Reversible Thermal Reconfigurability

Jung Young Jung, Min Jeong Shin, Baekman Kim, Ui Jeong Pyo, Jin Gyeong Son, Dong Ki Yoon and Sang Woo Han

Advanced Optical Materials, 2024, 12
DOI: 10.1002/adom.202400760

Designing Physical Unclonable Functions From Optically Active Materials

Maxime Klausen, Junfang Zhang and Molly M. Stevens

Advanced Materials, 2025, 37
DOI: 10.1002/adma.202502059

Structural color‐based physical unclonable function

Xiaofeng Lin, Daxiang Shi, Guobin Yi and Dingshan Yu

Responsive Materials, 2024, 2
DOI: 10.1002/rpm.20230031

Silicon Vacancies Diamond/Silk/PVA Hierarchical Physical Unclonable Functions for Multi‐Level Encryption

Fuhang Jiao, Chaonan Lin, Lin Dong, Xin Mao, Yi Wu, Fuying Dong, Zhenfeng Zhang, Junlu Sun, Shunfang Li, Xun Yang, Kaikai Liu, Lijun Wang and Chong‐Xin Shan

Advanced Science, 2024, 11
DOI: 10.1002/advs.202308337

Reconfigurable Liquid Crystal‐Based Physical Unclonable Function Integrating Optical and Electrical Responses

Hee Seong Yun, Dayan Wei, Sungjun Yang, Geonhyeong Park, Min Seok Kim, Tae Joo Shin, David M. Walba, Moon Jong Han and Dong Ki Yoon

Advanced Materials, 2025, 37
DOI: 10.1002/adma.202504288

Architected Nanomaterials Powering Optical Physical Unclonable Functions

Liulei Pan, Yaoming Wei, Jiawei Wang and Xingyi Ma

Laser & Photonics Reviews, 2026
DOI: 10.1002/lpor.202501958

Multi‐Level Optical Physical Unclonable Function Based on Random Surface Scattering for Hierarchical Cryptographic Protocols

Jeong Jin Kim, Min Seong Kim and Gil Ju Lee

Advanced Science, 2025, 12
DOI: 10.1002/advs.202512317

Mechanochromic Palettes of Cholesteric Liquid Crystal Elastomers for Visual Signaling

Hyewon Park, Hye Joo Lee, Hyungju Ahn, Woong Chan Han, Hee Seong Yun, Yun‐Seok Choi, Dae Seok Kim and Dong Ki Yoon

Advanced Optical Materials, 2024, 12
DOI: 10.1002/adom.202400266