EUROPEAN POLYMER JOURNAL
·
2022
·
IF 5.546
Jiaxin Zhao,Mingjuan Zhou,Yan Zhou,Danming Chao
Multi-stimulus-responsive materials have been intensively explored due to their wide applications of sensors, controlled drug release, and intelligent devices. However, color/fluorescence dual-switching response to the multiple external triggers has rarely been reported. We present here the multi-stimuli-responsive color/fluorescence dual-switching behavior of a novel hyperbranched polyamidoamine bearing viologen and adamantane units through one-pot Michael addition polymerization coupled with terminal modification tactic. This fascinating color/fluorescence dual-switching behavior is originated from conformation change (protonation/deprotonation of tertiary amines), reversible aggregation/de-aggregation (hydrophilic/hydrophobic balance modulation by adamantanes), and molecular structure transition (redox of viologens) within a polymer scaffold upon multiple environmental stimuli of pH value, heat, and electric potential. This delicate molecular design provides an alternative avenue toward a new class of smart, adaptive, and responsive polymers.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
Matter
·
2021
·
IF 15.589
Yang Yang,Huimin Wang,Shuai Zhang,Yen Wei,Xiangming He,Jianlong Wang,Yingying Zhang,Yan Ji
Soft actuators are highly desirable in soft robots, electronic devices, wearable devices, etc. Both multi-stimuli responsiveness and multichannel self-healing ability are essential for soft actuators to be used in different circumstances. However, to date, research on soft actuators with multi-stimuli response or multichannel self-healing ability is scarce, and there is none on actuators with both multi-stimuli abilities. Here, we show that simply hot-pressing carbonized silk fabrics into the surface of vitrimers results in a thermosetting soft actuator that can be efficiently and repeatedly self-healed by five stimuli (light, electricity, electromagnetic wave, solvent, and heat) and can respond to four stimuli (light, electricity, heat, and solvent) simultaneously. Moreover, due to the nature of vitrimer, it is robust, sustainable, recyclable, and reprocessable. This soft actuator may greatly broaden its applications, as it is hopefully healed and actuated by a handy and facile tool when it is used in different environmental circumstances.
研究领域:
材料科学
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软体机器人
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智能材料
·
自修复材料
·
高分子科学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2019
·
IF 8.456
Yanqiu Wang,Xudong Yu,Yajuan Li,Yajun Zhang,Lijun Geng,Fengjuan Shen,Jujie Ren
Herein, we report the versatile ways to prepare both low-molecular weight hydrogels and polymeric hydrogels based on various types of supramolecular interactions, starting from a simple amphiphilic terpyridine-based molecule TPYA. Notably, we report that stable terpyridine-based radicals can be generated by light or heat irradiation in polymeric hydrogels based on hydrogen bonding interactions between −COOH of PAA and the terpyridine motif of TPYA for the first time. The generation of radicals is confirmed by EPR and UV–vis experiments, and the process is accompanied by significant color changes from white to dark purple. The stable radical hydrogels prepared by the supramolecular strategy are self-healing, stretchable, and self-supporting and can be molded into different geometrical shapes. It is deduced that the generation of terpyridine-based radicals enhances the intermolecular hydrogen bonding and π–π interaction of molecules in a hydrogel matrix, which is responsible for the self-healing ability. Finally, we also show that the radical gels can selectively respond to ammonia and stretch with reversible color changes based on the reversible hydrogen-bonding interaction.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Tengning Ma,Hong Luo,Weiyuan Zhou,Huijuan Zhang,Rui Yuan,Qing He,Ying Huang,Li Yang,Guanjun Chang
Counterfeiting and information leakage have become critical global challenges, exacerbated by rapid technological advancements. This study presents a novel stimuli-responsive polymer, poly(imino sulfone) (PIS), synthesized via a simple C-N coupling reaction. The findings reveal that PIS exhibits fast, high-contrast, reversible color and fluorescence dual-mode stimuli-response, driven by the protonation-deprotonation of imine groups under varying acid-base conditions. Additionally, the rigid polymer structure, coupled with strong hydrogen bonding, imparts PIS excellent thermally stable (T 5% = 463 °C, T g = 245 °C), surpassing other polymers with stimulus-responsive discoloration capabilities. Notably, even at low concentrations (0.1 wt%), PIS demonstrates strong emission performance and stimulus-induced color-change behavior. The information encoded using PIS can be efficiently and repeatedly encrypted and decrypted under acid-base stimuli, thereby enhancing the confidentiality and security of the information. When integrated into polymer matrices, PIS not only imparts quick, stable and reversible dual-mode stimulus-responsive behavior but also enhances the thermal and mechanical properties of the host materials. The resultant PIS-based patterns exhibit excellent anti-counterfeiting performance. These unique properties position PIS as a promising candidate for advanced anti-counterfeiting and encryption applications.
研究领域:
材料科学
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化学
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2023
·Vol. 13
·期 12
·1890
·
IF 5.3
Chun Sun,Hu Zhang,Zhihui Deng,Chao Fan,Xiaohui Liu,Mingming Luo,Yiwei Zhao,Kai Lian
Stimuli-responsive luminescent materials have received great attention for their potential application in anti-counterfeiting and information encryption. Manganese halide hybrids have been considered an efficient stimuli-responsive luminescent material due to their low price and adjustable photoluminescence (PL). However, the photoluminescence quantum yield (PLQY) of PEA2MnBr4is relatively low. Herein, Zn2+- and Pb2+-doped PEA2MnBr4samples are synthesized, and show an intense green emission and orange emission, respectively. After doping with Zn2+, the PLQY of PEA2MnBr4is elevated from 9% to 40%. We have found that green emitting Zn2+-doped PEA2MnBr4could transform to a pink color after being exposed to air for several seconds and the reversible transformation from pink to green was achieved by using heating treatment. Benefiting from this property, an anti-counterfeiting label is fabricated, which exhibits excellent “pink-green-pink” cycle capability. Pb2+-doped PEA2Mn0.88Zn0.12Br4is acquired by cation exchange reaction, which shows intense orange emission with a high QY of 85%. The PL of Pb2+-doped PEA2Mn0.88Zn0.12Br4decreases with increasing temperature. Hence, the encrypted multilayer composite film is fabricated relying on the different thermal responses of Zn2+- and Pb2+-doped PEA2MnBr4, whereby the encrypted information can be read out by thermal treatment.Keywords:anti-counterfeiting;doping;manganese halides;stimuli-responsive;photoluminescence
研究领域:
材料科学
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化学
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Composites and Hybrid Materials
·
2024
·Vol. 7
·期 6
·1-11
·
IF 23.2
Ma Hongze,Shi Zhengyang,Yang Honghong,Yuan Wei,Liang Gemeng,Zou Jinshuo,Qian Cheng,Shen Zhaocun,Sui Kunyan
Information leakage and counterfeiting are critical global issues threatening human security and social stability. Advanced flexible anti-counterfeiting technologies are urgently needed, as flexible wearables are becoming more and more significant. In this study, we report a straightforward and efficient wet spinning technique to prepare lanthanide-alginate hybrid fibers with multicolor-emitting capabilities for flexible anti-counterfeiting. Lanthanide ions are able to coordinate with sodium alginate to endow the hybrid fibers with good molding properties, thermal stability, and homogenicity. These hybrid fibers can emit red, orange, and green fluorescence depending on the ratios of doped lanthanide elements under 254 nm UV light. The fluorescence lifetime of these hybrid fibers is longer than that of commonly used organic dyes. Notably, their fluorescence can be quenched in acidic environments or by Fe 3+ ions, which is ascribed to the weakened coordination strength between 2,2′-bipyridine with the lanthanide elements. More importantly, the hybrid fibers can be woven into various flexible anti-counterfeiting patterns. Our study demonstrates the significant flexible anti-counterfeiting potential of lanthanide-doped fibers due to their low cost, ease of fabrication, and flexibility. Graphical The multicolor-emitting lanthanide-alginate hybrid fibers with multi-stimuli responsiveness are produced through a simple wet spinning process and can be woven into various patterns for flexible anti-counterfeiting.
研究领域:
材料科学
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光学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2024
·
IF 5.3
Fanqi Meng,Lei Chen,Haoran Chen,Meili Shen,Guangyi Wang,Yulei Chang
Combined phototherapy with other therapeutic strategies can improve the therapeutic outcomes of tumors and reduce the side effects. However, shaping multiple modalities for combination therapy remains challenging. Herein, multiple stimuli-responsive drug-loaded micelles are presented, which are self-assembled from cypate-conjugated pH-sensitive poly(ethylene glycol)–poly(2-(diisopropylamino) ethyl methacrylate)–poly(2-aminoethyl methacrylate hydrochloride) and redox-responsive poly(glycidyl methacrylate)–poly(propylene sulfide) copolymer and loaded with chemo agents doxorubicin (DOX) and sorafenib (SRF, also a ferroptosis inducer) for enhanced tumor therapy. The DOX and SRF chemo drugs were encapsulated into the hydrophobic core of PPS and PDPA to enable multiple stimuli-responsive controlled drug delivery. In vivo and in vitro experiments are carried out to investigate the potential application for controlled drug release and systemic chemo-phototherapy. This study highlights the rational design of cypate-based drug-loaded micelles, offering multiple stimuli-responsive drug releases and synergistic photo-, ferro-, and chemotherapy in colorectal cancer.
研究领域:
肿瘤学
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药剂学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
·
2018
·Vol. 56
·期 10
·1067-1077
·
IF 2.588
Yuanfeng Gao,Chang-Ming Dong
Stimuli-responsive polypeptides are receiving much attention for drug delivery systems and tissue engineering scaffolds; however, it is challenging to construct multiple-responsive polypeptides and one-component polymeric hydrogels. Herein, a novel type of triple redox/temperature-responsive diselenide-containing poly(methoxydiethylene glycol- l -glutamate) homopolypeptide was facilely synthesized by selenocystamine-initiated ring-opening polymerization in DMF at 30 °C, and their chemical structures and physical properties were fully characterized by means of 1 H NMR, GPC, FT-IR, WAXD, and CD. They self-assembled into spherical micelles in aqueous solution, which possess a lower critical solution temperature, redox-responsiveness inherited from diselenide bond, and the triple stimuli-sensitive self-assembly behaviors, as characterized by means of turbidity, DLS, TEM, and zeta potential measurements. The diselenide-containing homopolypeptides formed supramolecular hydrogels at room temperature, exhibiting a thermal gel–sol transition. The rheological tests evidence that the mechanical modulus of the hydrogel is independent of angular frequency within 100 rad/s and at 25 °C, in which the storage modulus of G′ is order of magnitude greater than the loss modulus of G″, displaying a solid-like elastic behavior. Moreover, the mechanical modulus of the hydrogel can be tuned by changing the chain length of the homopolypeptide, the 10-mM 1,4-dithiothreitol (DTT) reduction, and 1 mM H 2 O 2 oxidation, respectively. Consequently, this work provides a simple strategy to fabricate triple-stimuli responsive polypeptide micelles and one-component hydrogels. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2018 , 56 , 1067–1077
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2019
·
IF 6.361
Jing Wang,Hanyue Deng,Yajuan Sun,Cheng Yang
A biocompatible oil-in-water emulsion containing no surfactant or other organic modifier was prepared using two negatively charged, naturally derived materials: alginate and montmorillonite (MMT), and it was found that the stable emulsion has good storage stability and coalescence stability. The dispersing and suspending effects of alginate to MMT were observed, and the interaction between alginate and MMT was confirmed by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and Zeta potential. The distribution of particles at the oil-water interface and in the aqueous phase of the emulsion was observed by confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM). A unique mechanism of the stable Pickering emulsion was then proposed. It is demonstrated that alginate not only thicken the continuous phase, create a gel-like environment around the droplets, but also could modify the MMT surface, synergistically enhance the electrostatic force of droplets due to the same charge property with MMT. Moreover, the rheological properties of the emulsion co-stabilized by MMT/Alginate can be well adjusted using various stimuli including pH and salt. In general, this work presents a highly stable, tunable and biocompatible emulsion for potential applications in food and cosmetic products.
研究领域:
食品科学
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材料科学
·
生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MACROMOLECULES
·
2025
·
IF 5.2
Ke Wang,Xiaofang Liu,Ziyan Li,Fan Zhao,Guiyan Liu,Yongfei Zeng
A new family of multistimuli-responsive acrylamide-based homopolymers with different end pendant substituents were prepared by reversible addition–fragmentation chain transfer (RAFT) polymerization. They include three types of multistimuli-response: temperature/pH/CO2-response, temperature/pH/redox-response, and temperature/pH/light-response. When the terminal substituent was ethyl and tetrahydropyran, P(Et-N-AM) and P(THP-N-AM) exhibited lower critical solution temperature (LCST) behavior in water, which can be adjusted by degree of polymerization (DP) and concentration of polymer, additives, pH, and the injection of CO2/N2 to the solution. When the terminal substituents were phenyl, ferrocene, and azobenzene, P(Ph-N-AM), P(Fc-N-AM), and P(Azo-N-AM) were insoluble in water due to the increase of hydrophobicity, but the upper critical solution temperature (UCST) was exhibited in the mixed solution of nBuOH/water and can be adjusted by the addition of acid or base. P(Fc-N-AM) was also redox-responsive, and its UV/vis absorption peaks changed with the addition of FeCl3/VC. P(Azo-N-AM) was also light-responsive, and under UV/blue light radiation, the characteristic peaks of its UV/vis absorption spectrum changed reversibly. In addition, the three homopolymers were amphiphilic, which can self-assemble in solution, and the obtained micelles were also responsive. Finally, nile red (NR) was used as a hydrophobic drug model, and the controlled release behavior of NR-loaded micelles of P(Fc-N-AM) and P(Azo-N-AM) under different stimuli was investigated. This work has greatly enriched the family of multistimuli-responsive poly(N-substituted acrylamide)s, and the synthetic steps of homopolymers were simple; the responsive behavior was sensitive, and the species were rich. It provides a reference for the design of novel stimuli-responsive polymers and has a good application prospect in self-assembly, drug release, and other fields.
研究领域:
高分子化学
·
材料科学
·
药物递送
✓ 已验证
产品关联
DOI
高影响因子
Advanced Optical Materials
·
2024
·
IF 8
Chao Wang,Zhengguang Yan,Lin Ma,Jiawen Xiao
Advanced optical information encryption usually relies on the integration of multicolor, stimulus-responsive, and afterglow luminescence. However, achieving these simultaneously within a single-phase system has posed challenges, complicating the design process. In this study, an advanced 3D information encryption strategy is presented based on undoped and alloyed Cs₂CdCl₄, encrypted through three distinct channels: emission wavelength, water stimulation, and afterglow time. Specifically, Mn 2+ , Sb 3+ , and Ag + doped Cs₂CdCl₄ single crystals are successfully synthesized via a modified hydrothermal method, which exhibit bright orange, green, and blue emissions, respectively. Decryption of specific information can be achieved by employing corresponding narrowband filters. Furthermore, the Cs₂CdCl₄ system demonstrates hydrochromism, attributed to water-induced sequential phase transitions. Upon water treatment, the 2D Cs₂CdCl₄ will undergo a phase transition to Cs 3 Cd 2 Cl 7 , and finally to cubic CsCdCl 3 . Interestingly, the resultant CsCdCl 3 exhibits pronounced afterglow, originating from the triplet emission of Cd ions. Leveraging these unique properties, a highly secure and adjustable 3D encrypted quick response code is designed. The encrypted information is encoded in coordinates, and decrypted information can be retrieved in both compressed and decompressed modes as required. These findings pave the way for the development of novel smart photonic materials and multimodal optical information encryption.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
EUROPEAN POLYMER JOURNAL
·
2018
·
IF 3.741
Kun Wang,Hao Lu,BeiBei Liu,Jiping Yang
Polyurethanes STMPU and HTMPU containing AIE fluorogens in the soft segments and hard segments, respectively, have been synthesized and characterized. Both two resulting polyurethane solutions exhibited an aggregation-enhanced emission (AEE) feature. Then two kinds of polyurethane films were prepared and their multi-stimuli-responsive properties were explored. Interestingly, the fluorescence emission of two polyurethane films were decreased in high temperature, and polyurethanes with different structures have different temperature-dependent fluorescent behaviors. Meanwhile, weak emission was obtained when acetone was dripped onto the two polyurethane films. Moreover, the fluorescence of the polyurethane STMPU film was greatly enhanced with the increase of tensile stress (at ε < 0.3), suggesting its potential application in multifunctional fluorescent probes.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）