Article
Engineering, Biomedical
Yuanfeng Li, Yin-Zi Piao, Hua Chen, Keqing Shi, Juqin Dai, Siran Wang, Tieli Zhou, Anh-Tuan Le, Yaran Wang, Fan Wu, Rujiang Ma, Linqi Shi, Yong Liu
Summary: New antimicrobial dynamic covalent nano-networks (aDCNs) were synthesized, which are composed of antibiotics bearing multiple primary amines, polyphenols, and a cross-linker acylphenylboronic acid. These aDCNs are highly responsive to stimuli and have excellent antimicrobial performance, inhibiting biofilm formation and eliminating mature biofilms of drug-resistant bacteria. They also alleviate macrophage inflammation and minimize the side effects of free antibiotics.
BIOACTIVE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiaowen Hu, Yuanfeng Li, Yinzi Piao, Mahdi Karimi, Yang Wang, Feng Wen, Huaqiong Li, Linqi Shi, Yong Liu
Summary: This research reports a novel class of antimicrobial molecules (T(2)A(2)) composed of nitric oxide (NO)-donor (DN) and various natural aldehydes, which self-assemble into nanoparticles and exhibit significant bactericidal efficacy. Cin-T(2)A(2) can kill multidrug-resistant staphylococci and eradicate their biofilms through multiple mechanisms. Furthermore, Cin-T(2)A(2) rapidly eradicates bacteria and alleviates inflammation in murine infection models.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yanhui Cui, Fen Li, Xin Zhang
Summary: Two new dyes were synthesized with an aromatic amine donor and dansyl acceptor connected by Diels-Alder dynamic covalent bonds, allowing switchable fluorescence resonance energy transfer. Single crystal X-ray diffraction revealed the longer and weaker nature of Diels-Alder bonds compared to normal single bonds. The dynamic covalent properties enable mutual conversion of the dyes through maleimide exchanges to construct a new system with higher energy transfer efficiency.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Danping Wang, Lingxiao Li, Hezhen Xu, Yixin Sun, Wenxiao Li, Tian Liu, Yan Li, Xianbao Shi, Zhonggui He, Yinglei Zhai, Bingjun Sun, Jin Sun
Summary: Prodrug-based nanoassemblies are developed to overcome the limitations of chemotherapeutic drugs. The response modules, which consist of disulfide bond linkages, are crucial for intelligent drug release at tumor sites. Different response modules resulted in Docetaxel prodrug nanoassemblies with varying characteristics.
Review
Materials Science, Multidisciplinary
Cheng Liu, Yizheng Tan, Huaping Xu
Summary: Dynamic covalent chemistry has seen significant advancements in the past two decades. These developments are mainly focused on two aspects: the continuous discovery of new dynamic covalent bonds (DCBs) and the incorporation of various DCBs into polymer materials for different functionalities. These functional polymer materials have opened up new opportunities for sustainable development. This review provides an overview of the diverse functions enabled by DCBs in polymer materials, including self-healing, chemical recycling, and shape controlling. Key emphasis is given to three-dimensional shape reconfiguration/programming, surface patterning, and reversible actuation. Current issues, challenges, and future development directions of DCBs-containing materials are also discussed.
SCIENCE CHINA-MATERIALS
(2022)
Article
Engineering, Biomedical
Longshun Yang, Guoqing Yan, Shi Wang, Jiaxi Xu, Qin Fang, Yanbing Xue, Lu Yang, Xiaoxiao Xu, Rupei Tang
Summary: The PEGylated dual-drug backboned nano-prodrugs were successfully constructed with defined structure, precise drug ratio, extraordinary high drug loading, and reduction/pH dual sensitivity. These nano-prodrugs exhibited stable storage and blood circulation through PEGylation and low critical micelle concentration, enhanced tumor accumulation and cellular uptake via extracellular DePEGylation and dynamic size translation, and synergetic cytotoxicity via intracellular efficient drug release. This study may pave the way for easy industrial manufacture, quality control, and highly selective chemotherapy for clinical translation.
ACTA BIOMATERIALIA
(2021)
Review
Pharmacology & Pharmacy
Lukasz Banach, George T. Williams, John S. Fossey
Summary: The global number of diabetes patients is increasing, requiring monitoring and insulin injections to control blood sugar levels. Closed-loop insulin delivery systems are a superior option. Boronic acid derivatives can be used to design responsive self-regulated insulin delivery materials that can respond to elevated and changing blood sugar levels.
ADVANCED THERAPEUTICS
(2021)
Article
Chemistry, Multidisciplinary
Jing Fang, Zhiyuan Fu, Xiaohong Chen, Yaozu Liu, Fengqian Chen, Yujie Wang, Hui Li, Yusran Yusran, Kai Wang, Valentin Valtchev, Shilun Qiu, Bo Zou, Qianrong Fang
Summary: Two dynamic three-dimensional covalent organic frameworks (COFs), JUC-635 and JUC-636, based on aggregation-induced emission (AIE) or aggregation-caused quenching (ACQ) chromophores, were reported. JUC-635 showed sustained fluorescence and reversible sensitivity upon pressure increase, with high-contrast emission differences. This study expands the potential applications of COFs as exceptional piezochromic materials in pressure sensing, barcoding, and signal switching.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Multidisciplinary Sciences
Lei Wei, Tu Sun, Zhaolin Shi, Zezhao Xu, Wen Wen, Shan Jiang, Yingbo Zhao, Yanhang Ma, Yue-Biao Zhang
Summary: The development of porous solids that can rapidly and selectively detect volatile organic compounds (VOCs) is of significant importance in sensor design. In this study, a dynamic 3D covalent organic framework (dynaCOF) was constructed, which can undergo structural transitions upon the adsorption of different gases and vapours. The framework can detect and differentiate organic vapours based on their polarity and sizes/shapes, providing a potential way for multiplex fluorescence sensing of various VOCs.
NATURE COMMUNICATIONS
(2022)
Review
Chemistry, Multidisciplinary
Binjie Jin, Shu Yang
Summary: A liquid crystalline elastomer (LCE) network with dynamic covalent bonds (DCBs), known as LCE vitrimers, can have its mesogen alignment and network topology reprogrammed locally through bond exchange reactions induced by external stimulus. Upon removal of the external stress, a new network is formed and the reprogrammed shape is fixed, resulting in different physical properties of the LCE vitrimers. This review gives a brief introduction to LCE fundamentals, discusses various DCBs and design principles for LCE vitrimers, presents strategies to improve stability and reprogrammability of registered mesogen alignment, explores preparation methods for LCE vitrimers with complex shapes and their actuations, reviews potential applications such as self-healing and recycling, mechanochromic effects, and post-functionalization of nanopores, and concludes with a discussion on remaining challenges and opportunities.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Polymer Science
Pothanagandhi Nellepalli, Twinkal Patel, Jung Kwon Oh
Summary: Polyurethane (PU) is widely used in daily life and various applications, and significant efforts have been made to develop self-healable materials with high performance by incorporating covalent dynamic bonds. The review summarizes various strategies for synthesizing self-healable, reprocessable, and recyclable PU materials.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Yuan Guan, Hongyu Li, Shufen Zhang, Wenbin Niu
Summary: This paper reports the design of mechanochromic self-healing thermal management devices based on photonic vitrimer. A series of new photonic vitrimers were prepared by dynamic disulfide covalent bond and PS@SiO2 photonic crystals. The resulting photonic vitrimer exhibits bright structural colors, large tensile strain, high mechanical strength, and self-healing ability. Taking advantage of these features, a novel mechanochromic flexible wireless thermal management (MFW) device was developed, which shows promising applications in wearable electronics, vitro physiotherapy, and personal heating.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hanna Traeger, Derek Kiebala, Celine Calvino, Yoshimitsu Sagara, Stephen Schrettl, Christoph Weder, Jess M. Clough
Summary: In this study, a generalisable protocol based on optical microscopy, tensile testing, and image processing is proposed for the spatially resolved interrogation of mechanical deformation at the molecular level around defects in mechanophore-containing polymers. This approach can be applied to a broad range of polymeric materials, mechanophores, and deformation scenarios.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Multidisciplinary
Arico Del Mauro, Zoran Kokan, Vladimir Sindelar
Summary: Bambusuril-based [1]rotaxanes were formed quantitatively using a reversible covalent bond and host-guest anion recognition. These novel [1]rotaxanes exhibited a dynamic nature, facilitating carboxylate component exchange reactions in acetonitrile.
CHEMICAL COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Mengqi Du, Hannes A. Houck, Qiang Yin, Yewei Xu, Ying Huang, Yang Lan, Li Yang, Filip E. Du Prez, Guanjun Chang
Summary: The click chemistry reaction between triazolinedione (TAD) and indole derivatives was used to create force-reversible C-N bonds, which enable materials to display reversible stress-responsiveness in real time. This method provides a general strategy to enhance mechanical strength and ductility in covalently crosslinked polymer materials.
NATURE COMMUNICATIONS
(2022)
Review
Chemistry, Multidisciplinary
Andrey S. Klymchenko
Summary: Biomembranes, as lipid structures, play a crucial role in cellular processes. The development of chemical tools, such as fluorescent probes, for sensing and imaging biomembranes is a rapidly growing field. This Account focuses on advances in smart molecules for membrane targeting and sensing, with a particular emphasis on plasma membranes and organelles.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Lazare Saladin, Ophelie Dal Pra, Andrey S. S. Klymchenko, Pascal Didier, Mayeul Collot
Summary: Dual-emissive photoconvertible fluorophores (DPCFs) are useful for tracking labeled cells in bioimaging. The directed photooxidation-induced conversion (DPIC) mechanism allows efficient DPCFs to be obtained by conjugating a coumarin to aromatic singlet-oxygen reactive moieties (ASORMs). Pyrrole is a suitable ASORM that provides a high hypsochromic shift and fast conversion. By modifying pyrrole, we can tune the photoconversion properties of the DPCFs, leading to an improved dual emissive converter, SCP-Boc, with high brightness and a 63% enhanced photoconversion yield. SCP-Boc was successfully used for sequential cell photoconversion using laser scanning confocal microscopy.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Review
Pharmacology & Pharmacy
Xinyue Wang, Halina Anton, Thierry Vandamme, Nicolas Anton
Summary: This review provides an updated insight into the characterization methods of nano-emulsions, including new and unconventional experimental approaches. It offers an overview of various techniques used to characterize nano-emulsions, ranging from classical methods to in vitro, ex vivo, and in vivo evaluation. The review also introduces innovative methods such as nanoparticle tracking analysis, small-angle X-ray scattering, Raman spectroscopy, and nuclear magnetic resonance. The use of lipophilic fluorescent probes and imaging techniques to understand the stability, surface decoration, release mechanisms, and in vivo fate of nano-emulsion droplets is discussed.
EXPERT OPINION ON DRUG DELIVERY
(2023)
Article
Chemistry, Physical
Germain A. Brou, Gildas K. Gbassi, Ievgen Shulov, Aidar Seralin, Andrey S. Klymchenko, Thierry F. Vandamme, Nicolas Anton
Summary: In this study, we investigated the characterization and tracking of chemical reactions of amphiphile compounds on model interfaces. By using a custom-made surfactant and interfacial crosslinking through click chemistry, we observed changes in monolayer properties and dilatational elasticity. Through bulk phase exchange and washing, we specifically measured the interfacial effects of the entities adsorbed and trapped at the interface.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Fei Liu, Nicolas Anton, Yosuke Niko, Andrey S. Klymchenko
Summary: Current biomedical applications of nanocarriers focus on controlled drug delivery, but this study proposes a different approach where toxic molecules are extracted from biological tissues using lipid nanoemulsion (NE) droplets. By designing a highly lipophilic amine (LipoAmine), cargo-aldehydes can be reacted and encapsulated inside lipid NEs through dynamic covalent chemistry. The formation of imine conjugates was validated and the NEs successfully extracted fluorescent dye and toxic aldehydes from cells, demonstrating the potential for developing detoxification platforms.
ACS APPLIED BIO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Deep Sekhar Biswas, Paraskevi Gaki, Elisabete Cruz Da Silva, Antoine Combes, Andreas Reisch, Pascal Didier, Andrey S. Klymchenko
Summary: By studying the FRET phenomenon between fluorescent organic nanoparticles, it is found that the efficiency does not follow the Forster law and can achieve high efficiency at long distances. This opens up the possibility of using advanced optical nanomaterials for amplified FRET-based biosensing.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Analytical
Reimi Pelletier, Dmytro I. Danylchuk, Hela Benaissa, Fanny Broch, Romain Vauchelles, Arnaud Gautier, Andrey S. Klymchenko
Summary: Genetically encoded protein labels combined with polarity-sensitive fluorescent probes provide information about the nanoscale environments of proteins within subcellular compartments. A solvatochromic HaloTag probe, NR12-Halo, specifically labels a variety of proteins localized in different cell compartments and distinguishes proteins within lipid membranes. This probe also reveals changes in protein environments during their life cycle, heterogeneity in membrane protein polarity, and the effects of mechanical stress and fatty acid diet on protein nanoenvironments. The solvatochromic HaloTag probe is a promising tool for studying protein interactions and nanoscale environments within subcellular structures.
ANALYTICAL CHEMISTRY
(2023)
Editorial Material
Chemistry, Multidisciplinary
L. Saladin, O. Dal Pra, A. S. S. Klymchenko, P. Didier, M. Collot
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Applied
Malik Muhammad Irfan, Shefaat Ullah Shah, Kifayat Ullah Shah, Nicolas Anton, Ysia Idoux-Gillet, Guillaume Conzatti, Elise Perennes, Thierry Vandamme
Summary: The purpose of this study was to develop a stable lyophilised finasteride nanosystem (FNS-NS) for topical delivery. The FNS-NS was fabricated using ultrasonication and the impact of different cryoprotectants on its characteristics was investigated. The lyophilised FNS-NS showed spherical shape, a particle size range of 188.6 nm +/- 4.4 to 298.7 nm +/- 4.7, low PDI values, and zeta potential within -38.3 to +53.3 mV. Confocal laser microscopy demonstrated higher cellular internalisation for undecorated FNS-NS compared to its chitosan-decorated counterpart. The lyophilised FNS-NS remained stable for 90 days and the FNS-NS with 15% trehalose showed promising attributes for topical delivery in treating androgenic alopecia.
JOURNAL OF MICROENCAPSULATION
(2023)
Review
Engineering, Biomedical
Tyler C. Owens, Nicolas Anton, Mohamed F. Attia
Summary: Computed tomography (CT) is a powerful imaging technique widely used in modern medicine, but it often requires the use of contrast agents to visualize structures with similar densities. Current clinical contrast agents for CT have significant drawbacks, such as nephrotoxicity and short circulation half-lives. Nanoparticle contrast agents have shown promise and are likely to be the main component of the next generation of CT contrast agents.
ACTA BIOMATERIALIA
(2023)
Article
Materials Science, Multidisciplinary
Deep Sekhar Biswas, Nina Melnychuk, Caterina Severi, Pascal Didier, Andrey S. Klymchenko
Summary: Light-harvesting is a fundamental process in nature that drives the development of artificial systems for various applications. Researchers have discovered that using blank hydrophobic salts can suppress dye aggregation within nanoparticles, improving their fluorescence properties and enabling efficient energy transfer and antenna effects.
ADVANCED OPTICAL MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Anila Hoskere Ashoka, Ilya O. Aparin, Andreas Reisch, Andrey S. Klymchenko
Summary: Brightness is crucial for (bio)molecular detection and optical bioimaging. This tutorial review provides definitions of brightness and describes the major approaches to its analysis. It also discusses the current chemical methods to combat Aggregation-Caused Quenching and compares the brightness and other properties of different fluorescent organic nanoparticles. The importance of brightness in biological applications is also analyzed.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Biochemistry & Molecular Biology
Benjamin Mary, Nandini Asokan, Katerina Jerabkova-Roda, Annabel Larnicol, Ignacio Busnelli, Tristan Stemmelen, Angelique Pichot, Anne Molitor, Raphael Carapito, Olivier Lefebvre, Jacky G. Goetz, Vincent Hyenne
Summary: Hemodynamics affect the function of circulating tEVs. Under low flow conditions, tEVs are mainly internalized by venous endothelial cells and rerouted towards non-degradative compartments, promoting their pro-tumoral function.