MACROMOLECULAR RAPID COMMUNICATIONS
·
2012
·Vol. 34
·期 3
·274-279
·
IF 4.596
Jingguo Li,Hao Jiang,Wenlong Hu,Hongyan Xia,Gang Zou,Qijin Zhang
Herein, we synthesize a coumarin-substituted diacetylene monomer (CODA) and report the novel photo-controlled reversible assembly and disassembly behavior of the polymerized CODA (PCODA) vesicles. The photo-triggered dimerization and cleavage reactions of the coumarin groups within the surface of the adjacent PCODA vesicles can be utilized as the driving force to induce assembly and disassembly of PCODA vesicles. Moreover, the boundary of PCODA vesicles in the aggregates becomes more obscure when the irradiation time exceeds 30 min. Fusion occurs upon close docking of target membranes, driven by sufficient dimerization of the coumarin groups within the surface of PCODA vesicles.
研究领域:
材料科学
·
生物化学
·
纳米医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-12
·
IF 15.7
Feng Zeyu,Li Jialei,Yang Peng,Xu Xiangxiang,Wang Di,Li Jiahe,Zhang Chutian,Li Jingguo,Zhang Hongli,Zou Gang,Chen Xin
Multimodal optical-materials are highly desirable due to their advantages in enhancing information security, though independent modulation is challenging, especially accurately controlling the orthogonal relationship between the structural coloration (SC) and fluorescence (FL) pattern. Herein, we report a strategy which combines programmable structural coloration and switchable circularly polarized luminescence (CPL) for multimodal information encryption. Using photomask with aligned grating, programmable periodic patterns are fabricated on a polydiacetylene (PDA) gel film, which produces image in tunable structural colors. Introducing a chiral fluorescence layer containing perovskite nanocrystals and twisted-stacking Ag nanowires (NWs) bilayers, which provides stimuli-responsive FL and CPL with high dissymmetry factor ( g lum , up to 1.3). Importantly, the structural coloration information and FL patterns (including CPL pattern) can be independently modulated without mutual interference, even selectively concealed or exposed by varying microstructure design of the cross-linked PDA gel or by acetonitrile treatment.
研究领域:
材料科学
·
光学
·
化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHINESE JOURNAL OF POLYMER SCIENCE
·
2024
·
IF 4.1
Ge Zhi-Qing,Yan Shuo,Pan Zu-Xiong,Lei Shan,Mao Xuan-Zhi,Zhao Chu,Wang Mo-Zhen,Ge Xue-Wu
The thermochromic mechanism and the structure-property regulation principle of reversible thermochromic polydiacetylene (PDA) materials have always been a challenging issue. In this work, a series of diacetylene monomers (m-PCDA) containing phenyl and amide or carboxyl groups were synthesized from 10,12-pentacosadiynoic acid (PCDA) through the esterification or amidation reactions. The effects of the number and the distribution of the functional groups in m-PCDA molecules on their solid-state polymerization capability, and the thermochromic mechanism of their corresponding polymers (m-PDA) were investigated and discussed in detail. The results show that the m-PCDA monomers containing both benzene ring and groups that can form hydrogen bonding interactions have strong intermolecular interaction, and are easy to carry out the solid phase polymerization under 254-nm UV irradiation to obtain the corresponding new thermochromic m-PDA materials. The thermochromic behavior of m-PDA depends on its melting process. The initial color-change temperature (blue to red) is determined by the onset melting temperature, and the temperature range in which reversible color recovery can be achieved by repeat heating-cooling treatment is determined by its melting range. According to the proposed thermochromic mechanism of PDA, various new PDA materials with precise thermochromic temperatures and reversible thermochromic temperature ranges can be designed and synthesized through the appropriate introduction of benzene ring and groups that can form hydrogen bonding interactions into the molecular structure of linear diacetylene monomer. This work provides a perspective to the precise molecular structure design and the property regulation of the reversible thermochromic PDA materials.
研究领域:
材料科学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2013
·
IF 3.172
Yangyang Xu,Jingguo Li,Wenlong Hu,Gang Zou,Qijin Zhang
Herein, a novel single-chain coumarin-substituted diacetylene monomer (CODA) was synthesized. CODA LB films exhibited obvious chirality although CODA monomer was achiral. Upon UV irradiation , CODA LB films could be polymerized into blue form and exhibit reversible thermochromism and chiroptical properties. Strong intermolecular interaction among the coumarin chromophores was assumed to be responsible for the complete reversibility of absorption and chiroptical changes for PCODA films upon thermal stimulus. And the helical packing of the coumarin chromophores seemed to play a dominating role in the subsequent formation of the helical PDA backbone. Moreover, the single-chain CODA monomer could be further photo-dimerized, and a novel gemini-type diacetylene monomer (DCODA) could be prepared. The effects of the photo-dimerization reaction of the coumarin moieties on the thermochromism and chiroptical properties of the resulting PDCODA films had been evaluated. The dimerization of head groups would enhance the thermal stability of PDCODA films but inhibit the chirality formation for PDA backbone.
研究领域:
材料化学
·
高分子科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Soft Matter
·
2018
·Vol. 14
·期 39
·8044-8050
·
IF 3.709
Yangyang Xu,Suya Fu,Feiyang Liu,Haiyin Yu,Jiangang Gao
Herein, a novel supramolecular gel was fabricated through the bi-component co-assembly strategy of commercially available 10,12-pentacosadiynoic acid (PCDA) and laboratory-synthesized amphiphilic co-gelator N-(2-(1H-imidazol-4-yl)ethyl)stearamide (IMSA), which contains one imidazole head group and a long alkyl chain tail, by synergetic noncovalent interactions. Upon irradiation of normal 254 nm UV light, blue polydiacetylene (PDA) could be obtained by topo-polymerization of the PCDA monomers in the gel phase. This PDA-based supramolecular gel is able to respond to various environmental stimuli and shows a blue-to-red chromatic transition, which could be observed by the naked eye. Specifically, upon exposure to heat, pH, metal cation and organic solvent stimuli, the PDA gel displays thermochromism, halochromism, ionochromism and solvatochromism, respectively. More interestingly, the differences of the above-mentioned stimuli-induced color transition of the blue PDA supramolecular gels could be characterized by UV-Vis absorption spectra and Raman spectra, therefore illuminating a bright application prospect in the area of chemosensing.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MACROMOLECULAR RESEARCH
·
2019
·Vol. 28
·期 1
·51-56
·
IF 1.758
Zhang Siyu,Shi Baoli,Yang Guang
Due to the high toxicity for brain and the nervous system of humans and other living organisms, the design and fabrication of a robust and sensitive method for the detection of Pb 2+ in the aqueous solution has attracted the increasing attention among scientists. Herein, a colorimetric and fluorometric sensor for the detection of Pb 2+ in the aqueous solution by incorporating a new phenylboronic acid functionalized polydiacetylene liposome was designed. The molar ratio of 4:1 between the monomers, 10,12-pentacosadiynoic acid (PCDA) and phenylboronic acid functionalized PCDA (PCDA-pBA) not only offered sufficient binding sites for Pb 2+ , but also interrupted the efficient π -conjugation backbone of polydiacetylene (PDA) chains associated with the color and fluorescence changes. Compared with other metal ions, only Pb 2+ could cause the color change and the fluorescence enhancement. Moreover, the hybrid PDA liposomes exhibited high sensitivity, fast response time (10 s), and a reasonable detection limit for Pb 2+ (0.1 µM). This work not only provides a versatile methodology for the fabrication of sensors for Pb 2+ detection, but also is of great fundamental value for a deeper understanding of the complexion-induced color changes based on polydiacetylene materials, and may pave the way for fabrication a new method for recognizing other metal ions.
研究领域:
分析化学
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材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2015
·Vol. 3
·期 43
·21690-21698
·
IF 7.443
Dong-En Wang,Yaolei Wang,Chang Tian,Longlong Zhang,Xiang Han,Qin Tu,Maosen Yuan,Sheng Chen,Jinyi Wang
The development of a novel and simple method to trace lead ions (Pb2+) has received great attention due to its high toxicity to human health and the environment. In this paper, we describe a new polydiacetylene (PDA)-based liposome sensor for the colorimetric and fluorometric detection of Pb2+ in aqueous solution and in alginate hydrogel microbeads. In the sensor system, a dopamine group was rationally introduced into a diacetylene monomer to work as a strong binding site for Pb2+. The dopamine-functionalized monomer and 10,12-pentacosadiynoic acid (PCDA) were then incorporated into PDA liposomes in aqueous solution. After UV light-induced polymerization, deep blue colored liposome solutions were obtained. Upon the addition of various metal ions into the liposome solution, only Pb2+ could cause a distinct color change from blue to red and a dramatic fluorescence enhancement. To further improve its sensitivity and address its intrinsic aggregation, we then developed a liposome-immobilized detection system by encapsulating PDA–DA liposomes into alginate hydrogel beads through a microfluidic droplet-based method. The results showed that the PDA–DA liposome-containing hybrid hydrogel beads possessed excellent stability and high sensitivity. These interesting findings demonstrated that the PDA liposome system developed in the current study may offer a new method for Pb2+ recognition in a more efficient manner.
研究领域:
分析化学
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环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
MACROMOLECULAR RAPID COMMUNICATIONS
·
2013
·Vol. 35
·期 3
·303-308
·
IF 4.929
Hongyan Xia,Yangyang Xu,Guang Yang,Hao Jiang,Gang Zou,Qijin Zhang
Here, a novel multi-stimuli-responsive fluorescence probe is developed by incorporating spiropyran group into the coumarin-substituted polydiacetylene (PDA) vesicles. The fluorescence of PDA can be turned on upon heating, and can be quenched upon exposure to UV light irradiation or pH stimuli owing to the fluorescene resonance energy transfer (FRET) between the red-phase PDA and the open merocyanine (MC) form of spiropyran. Moreover, we have designed and experimentally realized a set of logic gate operations for the first time based on the fluorescence modulation of the designed system upon thermal, photo, and pH stimuli. This novel type of resettable logic gates augur well for practical applications in information storage, optical recording, and sensing in complicated microenvironments.
研究领域:
生物化学
·
材料科学
·
信息存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry C
·
2023
·Vol. 11
·期 31
·10527-10534
·
IF 6.4
Peng Yang,Yifan Xie,Li Wen,Liyu Gan,Linxiao Deng,Hongli Zhang,Jiahe Li,Zeyu Feng,Chutian Zhang,Lixin Xu,Gang Zou
Achieving strong and dynamic tunable chiroptical responses in flexible films is highly desirable for potential applications including 3D optical displays, biosensors, and so on. Recently, controlled twisted stacking of two anisotropic layers became a popular strategy to fabricate artificial chiral nanostructures. However, in most cases, their structure and chiroptical responses are fixed, limiting their practical applications. Herein, we employed polydiacetylene (PDA)–Cs+ and PDA–Zn2+ assemblies as the individual layers within the twisted stacking structures and the hybrid films exhibited giant optical activity as well as excellent mechanical deformability. The chromatic transitions of the PDA layer under in situ water or electrothermal stimuli enable simultaneous control of two circular dichroism (CD) characteristics (magnitude and spectral position). By taking advantage of such programmable chiroptical responses, we demonstrate that PDA films have potential for full color, fast responsive, and circular polarization-based multiplex laser displays and higher-dimensional anti-counterfeiting applications. This work not only provides flexible chiral PDA films with strong and dynamic tunable chiroptical responses but is also of great fundamental value for the rational design of smart chiroptical devices.
研究领域:
材料科学
·
光学
·
生物传感
✓ 已验证
产品关联
DOI
高影响因子
EUROPEAN POLYMER JOURNAL
·
2024
·
IF 5.8
Xuan Xia,YingMin Lu,GuanZhou Liu,Chao Liu,Qi Wang
Composites of polydiacetylenes (PDA) and zinc oxide (ZnO) find diverse applications in thermochromic inks, colorimetric sensors, and anticounterfeiting, albeit often with complex preparation methods, single functionality, and high color-changing temperature ranges. This study presents environmentally friendly aqueous composites exhibiting dual thermochromic and fluorescent properties, achieved by integrating ZnO quantum dots (QDs) with particle sizes below 10 nm with PDA. By varying the concentration ratio of ZnO QDs to PDA, the effects on fluorescence and thermochromic properties were systematically explored. The interaction between ZnO QDs and PDA interfaces causes alterations to the energy states in the conjugated π-orbital array within PDA molecules. In contrast to pure PDA solutions, the composite materials not only exhibit thermochromism but also fluorescence. Demonstratively, the composite was applied as functional ink or paste for writing, film production, and inkjet printing, maintaining robust thermochromic sensitivity and fluorescence properties in the resulting specimens. This methodology imparts excellent multifunctionality to composite materials, enhancing and broadening their application potential.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2025
·
IF 5.1
Chunyu Song,Jiahao Huang,Chenglong Qiu,Yong Yang
Temperature monitoring is essential for many natural and engineering processes in our daily life. Reversible and irreversible temperature sensors for different applications or environments have been devised to accommodate these processes. In this study, two polydiacetylenes (PDA-1 and PDA-2) functionalized with amide groups are prepared by topochemical polymerization, which exhibit reversible and irreversible thermochromic behavior at different temperatures. The thermochromic properties of these PDAs are evaluated by UV–vis absorption spectrum. Both samples can undergo multi-step thermochromic processes, which turn red at 80 and 90 °C, respectively. Their thermal stabilities are characterized by thermogravimetric analyses, which demonstrate that both PDAs are sufficiently stable when used up to 200 °C. The changes in the unsaturated structure before and after heating the resulting PDAs are revealed by Raman spectroscopy. In-situ FTIR spectroscopy captures the dynamic changes of molecular bonds and conjugated structures under thermal stimulation. Compared with PDA-1, strong hydrogen-bonding networks and aromatic interactions in headgroup provide PDA-2 with the capability of recovering its initial molecular organization and average π-electron conjugation length upon removal of thermal stimuli. PDAs present aggregated sheet-like structure before and after heating upon 100 °C. XRD results reveal that the blue-to-red color transition originated from the slight increase of the d-spacing value of the macromolecular backbones. The CR value of PDA-2 reaches 0.65 at 100 °C, indicating superior color transfer performance. Once cooled to 20 °C, the CR value sharply drops back to its initial level, demonstrating that its thermochromic reversibility is quite high. In particular, PDA-2 presents a reversible thermochromic feature upon heating at 100 °C, making it an efficient and reusable temperature-sensing material.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2014
·Vol. 6
·期 21
·13097-13103
·
IF 6.739
Xiang-Kun Nie,Yi-Ting Xu,Zhi-Ling Song,Ding Ding,Feng Gao,Hao Liang,Long Chen,Xia Bian,Zhuo Chen,Weihong Tan
Molecular self-assembly, a process to design molecular entities to aggregate into desired structures, represents a promising bottom-up route towards precise construction of functional systems. Here we report a multifunctional, self-assembled system based on magnetic-graphitic-nanocapsule (MGN) templated diacetylene assembly and photopolymerization. The as-prepared assembly system maintains the unique color and fluorescence change properties of the polydiacetylene (PDA) polymers, while also pursues the superior Raman, NIR, magnetic and superconducting properties from the MGN template. Based on both fluorescence and magnetic resonance imaging (MRI) T2 relaxivity, the MGN@PDA system could efficiently monitor the pH variations which could be used as a pH sensor. The MGN@PDA system further demonstrates potential as unique ink for anti-counterfeiting applications. Reversible color change, strong and unique Raman scattering and fluorescence emission, sensitive NIR thermal response, and distinctive magnetic properties afford this assembly system with multicoded anti-counterfeiting capabilities.
研究领域:
材料科学
·
生物医学工程
·
化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）