Photoexcitation-Induced Assembly: A Bottom-Up Physical Strategy for Driving Molecular Motion and Phase Evolution

Article Chemistry, Multidisciplinary

Highly efficient light-induced self-assembly of gold nanoparticles promoted by photoexcitation-induced aggregatable ligands

Xiaoyan Xu et al.

Summary: Ligands that can perform photoexcitation-induced aggregation were synthesized and modified onto gold nanoparticles, resulting in highly efficient light-induced self-assembly properties and high-contrast color fading in tens of seconds.

CHEMICAL COMMUNICATIONS (2023)

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Review Chemistry, Multidisciplinary

Future-Oriented Advanced Diarylethene Photoswitches: From Molecular Design to Spontaneous Assembly Systems

Hong-Bo Cheng et al.

Summary: Diarylethene (DAE) photoswitch, as a smart trigger, has shown superior performance in stimulus-responsive materials. The introduction of DAE into an assembly system has been an attractive strategy, enabling the manifestation of photochromic behavior at the system level, promoting the design and manufacture of advanced materials.

ADVANCED MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Reversible Photoswitching between Fluorescence and Room Temperature Phosphorescence by Manipulating Excited State Dynamics in Molecular Aggregates

Xuanhang Wang et al.

Summary: The study demonstrates successful realization of reversible switching between fluorescence and phosphorescence through light control, using the effective strategy of integrating o-BFT with dibenzofuran and dithienylbenzothiophene. The dual emission of fluorescence and RTP in o-BFT can be controlled through alternate UV and visible light irradiations. The study suggests the domination of photo-controlled triplet-to-singlet Forster resonance energy transfer in triplet inactivation, preserving the initial fluorescence for photoreversible fluorescence-RTP switching.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

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Review Chemistry, Multidisciplinary

From Precision Colloidal Hybrid Materials to Advanced Functional Assemblies

Veikko Linko et al.

Summary: Colloids encompass a wide range of particles, including synthetic nanoparticles and functional biological units. While synthetic colloids have been extensively researched, they often suffer from imperfections in size, shape, and interactions. In contrast, biological colloids offer precision in these aspects. Inspired by biological systems, materials science is exploring ways to achieve structural control and novel functionality in synthetic colloids. This includes guided assemblies of biological motifs, DNA nanotechnology-based assemblies, and atomically precise structures. The goal is to develop stimulus-responsive colloids with complex functions, similar to biological learning. By controlling colloidal size and dispersity, various functionalities can be achieved.

ACCOUNTS OF CHEMICAL RESEARCH (2022)

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Article Chemistry, Multidisciplinary

Polymer Mechanochromism from Force-Tuned Excited-State Intramolecular Proton Transfer

Huan Hu et al.

Summary: This study reports the development of a mechanochromic mechanophore based on excited-state intramolecular proton transfer (ESIPT) for real-time strain sensing in polyurethane films. The mechanophore exhibited high sensitivity and excellent reversibility to stress, and the mechanochromism was attributed to chain-transduced force. Density function theory (DFT) calculation was performed to analyze the force-tuned ESIPT process. This research lays the foundation for practical applications in real-time stress/strain sensing.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022)

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Article Chemistry, Multidisciplinary

Excitation-Wavelength-Dependent Organic Long-Persistent Luminescence Originating from Excited-State Long-Range Proton Transfer

Zhongwei Man et al.

Summary: Stimuli-responsive functional luminescent materials with tunable color and long-persistent emission have been successfully prepared by manipulating proton transfer pathways. Different luminous colors originate from different proton transfer processes, paving the way for the construction of pure organic luminescent materials.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022)

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Review Chemistry, Multidisciplinary

Sterically Hindered Diarylethenes with a Benzobis(thiadiazole) Bridge: Enantiospecific Transformation and Reversible Photosuperstructures

Mengqi Li et al.

Summary: Photochromic diarylethenes with reversible regulation by external light irradiation have important applications in various fields. However, there are still unresolved issues regarding the modulation of bistability, reduction of photoinactive conformers, and achievement of reversible enantiospecific transformation. To address these issues, we developed a diarylethene system based on benzobis(thiadiazole) that successfully separated multiple conformers, resulting in higher photocyclization quantum yields and enantiospecific photoreactions.

ACCOUNTS OF CHEMICAL RESEARCH (2022)

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Article Chemistry, Multidisciplinary

In Situ Regulation of Microphase Separation-Recognized Circularly Polarized Luminescence via Photoexcitation-Induced Molecular Aggregation

Bingbing Yue et al.

Summary: In this study, a microphase-separation-recognized CPL regulation strategy was proposed via coassembly of a hexathiobenzene-based luminophore and chiral block copolymer (cBCP) with in situ photocontrollability. The supramolecular chiropticity of solid-state materials was effectively regulated by controlling the luminophore-to-cBCP ratio and photoexcitation-induced molecular aggregation of the luminophore.

ACS NANO (2022)

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Article Chemistry, Multidisciplinary

Photoexcitation-Based Supramolecular Access to Full-Scale Phase-Diagram Structures through in situ Phase-Volume Ratio Phototuning

Bingbing Yue et al.

Summary: This study developed a far-from-equilibrium system by integrating photoexcitation-induced aggregation molecules and block copolymers to establish an in situ phase-volume ratio photocontrol strategy, allowing for the production of a wide range of assembled structures including full-scale phase-diagram structures from lamellar to spherical. The phase transition was accompanied by aggregation-induced phosphorescence and hydrophilicity/hydrophobicity change for building functional surfaces.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

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Article Nanoscience & Nanotechnology

Hierarchically self-assembled homochiral helical microtoroids

Cong Du et al.

Summary: Fabrication of microscale helical structures remains challenging due to the disfavoured torsion energy. In this study, a combined solution-interface-directed assembly strategy is used to form hierarchically self-assembled helical microtoroids with micrometre-scale lengths. The resulting helical toroids exhibit unique circularly polarized luminescence.

NATURE NANOTECHNOLOGY (2022)

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Article Materials Science, Multidisciplinary

Multiple-stimuli-responsive multicolor luminescent self-healing hydrogel and application in information encryption and bioinspired camouflage

Jing Wang et al.

Summary: A self-healing hydrogel with multicolor luminescence properties induced by multiple stimuli has been developed in this study. This hydrogel exhibits excellent self-healing capabilities and has potential applications in information encryption and bioinspired camouflage.

JOURNAL OF MATERIALS CHEMISTRY C (2022)

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Article Chemistry, Multidisciplinary

Turning On Solid-State Luminescence by Phototriggered Subtle Molecular Conformation Variations

Weijun Zhao et al.

Summary: The development of solid-state intelligent materials, particularly those with photoresponsive luminescence (PRL), is important for cutting-edge applications. A new PRL material, TPE-4N, features sensitive and reversible fluorescence switching that can be easily tuned through phototriggering and thermal annealing.

ADVANCED MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Azobenzene-Based Macrocyclic Arenes: Synthesis, Crystal Structures, and Light-Controlled Molecular Encapsulation and Release

Yuezhou Liu et al.

Summary: A series of azo-based macrocyclic arenes were designed and synthesized, showing changes in cavity size upon photoisomerization and successful light-controlled host-guest complexation. This work provides a simple and effective method for preparing azo-macrocycles and may further advance the design and applications of novel photo-responsive host-guest systems.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Multidisciplinary

Visible-Light-Driven Rotation of Molecular Motors in Discrete Supramolecular Metallacycles

Zhao-Tao Shi et al.

Summary: The study presents a visible-light-responsive molecular motor metallacycle that enables directional self-assembly of motor units through metal coordination. These metallacycles not only retain the rotation characteristics of the motors but also construct multi-component hierarchical systems, offering prospects for cooperative operations and adaptive materials.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

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Review Chemistry, Multidisciplinary

Dissipative Self-Assembly: Fueling with Chemicals versus Light

Maren Weissenfels et al.

Summary: Dissipative self-assembly is common in nature, involving complex structures and functions fueled by energy stored in chemical fuels like ATP. Synthetic chemically and light-driven systems have been developed to mimic natural systems, with multiple analogies between these modes of dissipative self-assembly. Further development in this field is anticipated.

CHEM (2021)

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Article Chemistry, Multidisciplinary

Rigid Polymer Network-Based Autonomous Photoswitches Working in the Solid State Encoded by Room-Temperature Phosphorescence

Yifan Gong et al.

Summary: The study introduces a prototype of an autonomous photoswitch that can work in the solid state based on a rigid polymer network. By using a hexacarboxylic sodium-modified hexathiobenzene compound as a photoexcitation-driven unit and complexing it with a relatively rigid polymer named poly(dimethyldiallylammonium)-chloride (PDDA) through electrostatic coupling, the photoexcitation-controlled molecular aggregation and its self-recovery can work effectively under rhythmical photoirradiation, showing excellent performance of the autonomous switch.

LANGMUIR (2021)

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Article Multidisciplinary Sciences

Complex structures arising from the self-assembly of a simple organic salt

Riccardo Montis et al.

Summary: Molecular self-assembly is the spontaneous association of simple molecules into larger and ordered structures, and it plays a crucial role in the rational design of materials. The study of fampridine hydrochloride salts has revealed the emergence of complex self-assembled structures from simple organic salts, demonstrating the potential for designing organic crystalline materials.

NATURE (2021)

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Review Chemistry, Multidisciplinary

Advances in Application of Azobenzene as a Trigger in Biomedicine: Molecular Design and Spontaneous Assembly

Hong-Bo Cheng et al.

Summary: Azobenzene, a well-known derivative of stimulus-responsive molecular switches, has shown superior performance in biomedical applications. Recent studies have focused on developing long-wavelength-responsive azobenzene, matching its characteristics to the bio-optical window for larger and more effective stimulus response. The use of azobenzene as a hypoxia-sensitive connector has also resulted in on/off state switching of properties such as pharmacology and fluorescence activity. Here, we summarize recent advances in utilizing azobenzene as a trigger in biomedicine.

ADVANCED MATERIALS (2021)

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Article Chemistry, Physical

Enhancing the Operability of Photoexcitation-Controlled Aggregation-Induced Emissive Molecules in the Organic Phase

Taoyu Weng et al.

Summary: This study investigates the control of photoexcitation-induced AIEgens using hexathiobenzene as a prototype phosphorescent group, exploring factors such as light intensity, dissolved oxygen content, and solvent polarity. An organogel strategy is developed to minimize interference factors and improve practical application ability, providing new insights for further development of functional materials based on photoexcitation.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2021)

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Article Multidisciplinary Sciences

Visualizing Material Processing via Photoexcitation-Controlled Organic-Phase Aggregation-Induced Emission

Jian Gu et al.

Summary: By employing a non-equilibrium strategy of photoexcitation-controlled aggregation, aggregation-induced emission (AIE) was achieved in pure organic phases, leading to a continuous aggregation-dependent luminescent enhancement with up to a 200-fold increase in luminescent quantum yield, as well as the realization of photoconvertible self-assemblies.

RESEARCH (2021)

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Review Chemistry, Multidisciplinary

Organic composite materials: Understanding and manipulating excited states toward higher light-emitting performance

Haiyun Dong et al.

Summary: This review focuses on the structure design and dynamics modulation of the electronic excited states in organic composite materials, covering aspects such as singlet/triplet levels, vibronic transition, charge transfer, and various light-emitting behaviors like fluorescence and phosphorescence. The aim is to provide insight into the relationship between light-emitting properties and excited states of organic composite materials for improved design and applications.

AGGREGATE (2021)

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Article Materials Science, Multidisciplinary

Manipulating crystals through photoexcitation-induced molecular realignment

Shen Shen et al.

Summary: The paper proposes a new non-equilibrium strategy of photoexcitation-induced molecular realignment to manipulate crystal growth and transformation, allowing dynamic changes in molecular conformation under continuous photoirradiation while maintaining molecular structure intact. This strategy enables crystal photomanipulation from solution growth to doped films with phototuning of optical behaviors, providing a paradigm for controlling molecular ordering through light.

JOURNAL OF MATERIALS CHEMISTRY C (2021)

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Article Materials Science, Multidisciplinary

A chiral single-component sol-gel platform with highly integrated optical properties

Bin Wu et al.

Summary: An enantiomeric pair of luminescent gelators designed with hexathiobenzene and glutamic acid derivatives exhibit aggregation-induced emission (AIE), room-temperature phosphorescence (RTP), and circularly polarized luminescence (CPL). These optical properties can be switched on and off by thermal stimuli.

JOURNAL OF MATERIALS CHEMISTRY C (2021)

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Article Chemistry, Multidisciplinary

A Fluorescence-Phosphorescence-Phosphorescence Triple-Channel Emission Strategy for Full-Color Luminescence

Taoyu Weng et al.

SMALL (2020)

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Review Chemistry, Multidisciplinary

Molecular Photoswitching in Confined Spaces

Angela B. Grommet et al.

ACCOUNTS OF CHEMICAL RESEARCH (2020)

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Article Chemistry, Multidisciplinary

Photo-induced crystallization with emission enhancement (PICEE)

Kongqi Chen et al.

MATERIALS HORIZONS (2020)

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Article Chemistry, Multidisciplinary

Fluorescence to multi-colored phosphorescence interconversion of a novel, asterisk-shaped luminogen via multiple external stimuli

Xiaoyong Jia et al.

CHEMICAL COMMUNICATIONS (2020)

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Review Chemistry, Multidisciplinary

Supramolecular materials based on AIE luminogens (AIEgens): construction and applications

Jie Li et al.

CHEMICAL SOCIETY REVIEWS (2020)

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Article Chemistry, Multidisciplinary

Crystal Multi-Conformational Control Through Deformable Carbon-Sulfur Bond for Singlet-Triplet Emissive Tuning

Hongwei Wu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

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Article Multidisciplinary Sciences

Photoexcitation-controlled self-recoverable molecular aggregation for flicker phosphorescence

Xiaoyong Jia et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2019)

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Review Materials Science, Multidisciplinary

Photo-Regulated Supramolecular Polymers: Shining Beyond Disassembly and Reassembly

Qi Zhang et al.

ADVANCED OPTICAL MATERIALS (2019)

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Article Chemistry, Physical

Visualization and Manipulation of Molecular Motion in the Solid State through Photoinduced Clusteroluminescence

Haoke Zhang et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2019)

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Article Chemistry, Multidisciplinary

Dynamic Ultralong Organic Phosphorescence by Photoactivation

Long Gu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2018)

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Review Chemistry, Multidisciplinary

Photochromism into nanosystems: towards lighting up the future nanoworld

Ling Wang et al.

CHEMICAL SOCIETY REVIEWS (2018)

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Article Multidisciplinary Sciences

Light-enabled reversible self-assembly and tunable optical properties of stable hairy nanoparticles

Yihuang Chen et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2018)

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Article Multidisciplinary Sciences

Light-driven transformable optical agent with adaptive functions for boosting cancer surgery outcomes

Ji Qi et al.

NATURE COMMUNICATIONS (2018)

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Article Multidisciplinary Sciences

The influence of the molecular packing on the room temperature phosphorescence of purely organic luminogens

Jie Yang et al.

NATURE COMMUNICATIONS (2018)

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Review Chemistry, Multidisciplinary

Construction of Stimuli-Responsive Functional Materials via Hierarchical Self-Assembly Involving Coordination Interactions

Li-Jun Chen et al.

ACCOUNTS OF CHEMICAL RESEARCH (2018)

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Article Chemistry, Multidisciplinary

Control on Dimensions and Supramolecular Chirality of Self-Assemblies through Light and Metal Ions

Guofeng Liu et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2018)

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Article Chemistry, Multidisciplinary

Helical Self-Assembly-Induced Singlet-Triplet Emissive Switching in a Mechanically Sensitive System

Hongwei Wu et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2017)

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Article Chemistry, Multidisciplinary

Molecular stacking dependent phosphorescence-fluorescence dual emission in a single luminophore for self-recoverable mechanoconversion of multicolor luminescence

Hongwei Wu et al.

CHEMICAL COMMUNICATIONS (2017)

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Review Chemistry, Multidisciplinary

Recent developments in reversible photoregulation of oligonucleotide structure and function

Anouk S. Lubbe et al.

CHEMICAL SOCIETY REVIEWS (2017)

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Article Nanoscience & Nanotechnology

Tuning for Visible Fluorescence and Near-Infrared Phosphorescence on a Unimolecular Mechanically Sensitive Platform via Adjustable CH-π Interaction

Hongwei Wu et al.

ACS APPLIED MATERIALS & INTERFACES (2017)

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Article Chemistry, Multidisciplinary

Excited State Modulation for Organic Afterglow: Materials and Applications

Shen Xu et al.

ADVANCED MATERIALS (2016)

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Review Chemistry, Multidisciplinary

Supramolecular Amphiphiles Based on Host-Guest Molecular Recognition Motifs

Guocan Yu et al.

CHEMICAL REVIEWS (2015)

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Article Chemistry, Multidisciplinary

Light-controlled self-assembly of non-photoresponsive nanoparticles

Pintu K. Kundu et al.

NATURE CHEMISTRY (2015)

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Article Nanoscience & Nanotechnology

Light-powered autonomous and directional molecular motion of a dissipative self-assembling system

Giulio Ragazzon et al.

NATURE NANOTECHNOLOGY (2015)

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Review Chemistry, Multidisciplinary

Photochromic Materials: More Than Meets The Eye

Junji Zhang et al.

ADVANCED MATERIALS (2013)

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Review Chemistry, Multidisciplinary

Metal-Organic Frameworks and Self-Assembled Supramolecular Coordination Complexes: Comparing and Contrasting the Design, Synthesis, and Functionality of Metal-Organic Materials

Timothy R. Cook et al.

CHEMICAL REVIEWS (2013)

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Article Chemistry, Multidisciplinary

Unimolecular Photoconversion of Multicolor Luminescence on Hierarchical Self-Assemblies

Liangliang Zhu et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2013)

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Organophosphorus π-conjugated materials

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CHEMICAL REVIEWS (2006)

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Photocontrollable self-assembly

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CHEMISTRY-A EUROPEAN JOURNAL (2005)

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Self-assembly at all scales

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SCIENCE (2002)

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Photoexcitation-Induced Assembly: A Bottom-Up Physical Strategy for Driving Molecular Motion and Phase Evolution

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