Spiropyran 2025 March Papers List
| Authors | Author Full Names | Article Title | Source Title | Author Keywords | Keywords Plus | Abstract | Addresses | Affiliations | Reprint Addresses | Email Addresses | Journal Abbreviation | Journal ISO Abbreviation | Publication Date | Publication Year | Volume | Issue | Start Page | End Page | Article Number | DOI | DOI Link |
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| Zou, XQ; Xiao, XZ; Zhang, SX; Zhong, JJ; Hou, YL; Liao, LQ | Zou, Xueqing; Xiao, Xiaozhen; Zhang, Shixiong; Zhong, Jiajun; Hou, Yulin; Liao, Liqiong | A photo-switchable and thermal-enhanced fluorescent hydrogel prepared from N-isopropylacrylamide with water-soluble spiropyran derivative | JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION | Hydrogel; fluorescent; photo-switchable; thermal-enhanced; spiropyran | POLY(N-ISOPROPYLACRYLAMIDE) HYDROGEL; TEMPERATURE; SURFACE; NANOPARTICLES; SENSOR; PH; SPIRONAPHTHOXAZINE; ENVIRONMENT; MODULATION; DETACHMENT | Herein, a photo-switchable and thermal-enhanced fluorescent hydrogel has been fabricated from N-isopropylacrylamide (NIPAAm) with a mixture of water-soluble acryloyl-alpha-cyclodextrin/acryloyl-alpha-cyclodextrin-spiropyran (acryloyl-alpha-CD/acryloyl-alpha-CD-SP) as cross-linkers. The physical properties, photochromic properties, and fluorescent behavior of the hydrogel were characterized. The fluorescence emission of the hydrogel can be reversibly switched 'on/off' by UV/visible light irradiation, and meanwhile the fluorescence intensity can be enhanced by increasing the temperature above the volume phase transition temperature (VPTT) of the hydrogel. The hydrogel also shows spatiotemporal fluorescent behavior, excellent cytocompatibility, and fatigue resistance in photochromic and photo-switchable fluorescent behaviors. | [Zou, Xueqing; Liao, Liqiong] Wuhan Univ, Coll Chem & Mol Sci, Wuhan, Hubei, Peoples R China; [Xiao, Xiaozhen; Liao, Liqiong] Southern Med Univ, Sch Biomed Engn, Guangzhou, Guangdong, Peoples R China; [Zhang, Shixiong; Zhong, Jiajun; Hou, Yulin] Sun Yat Sen Univ, Sch Engn, Guangzhou, Guangdong, Peoples R China | Wuhan University; Southern Medical University - China; Sun Yat Sen University | Liao, LQ （連絡著者）、Wuhan Univ, Coll Chem & Mol Sci, Wuhan, Hubei, Peoples R China.;Liao, LQ （連絡著者）、Southern Med Univ, Sch Biomed Engn, Guangzhou, Guangdong, Peoples R China. | liqiongliao@hotmail.com | J BIOMAT SCI-POLYM E | J. Biomater. Sci.-Polym. Ed. | 2018 | 29 | 13 | 1579 | 1594 | 10.1080/09205063.2018.1475942 | http://dx.doi.org/10.1080/09205063.2018.1475942 | ||
| Machida, S; Nakamura, Y; Itaya, A; Ikeda, N | Machida, Shinjiro; Nakamura, Yuta; Itaya, Akira; Ikeda, Noriaki | Poly(2-isopropyl-2-oxazoline) Bearing a Spiropyran Side-Chain: Synthesis and Evaluation of Photo and Temperature-Responsive Properties | MACROMOLECULAR CHEMISTRY AND PHYSICS | photoinduced phase change; poly(2-isopropyl-2-oxazoline); spiropyran; temperature responsive polymers; turbidity | AQUEOUS-SOLUTION; PHOTORESPONSIVE POLYMERS; N-ISOPROPYLACRYLAMIDE; RAFT POLYMERIZATION; ALPHA-CYCLODEXTRIN; BLOCK-COPOLYMERS; PHASE-SEPARATION; POLY(N-ISOPROPYLACRYLAMIDE); LIGHT; STIMULI | Poly(2-isopropyl-2-oxazoline)s with varied loading of the spiropyran side-chain are synthesized, and their photochemical and thermosensitive properties are characterized in aqueous solution. The absorption spectrum of the sample aqueous solution (0.1 wt%) indicates that 7.8 mol% of the pendant groups are in the zwitterionic merocyanine form. The introduction of spiropyran groups causes a marked decrease in the cloud point of the aqueous solution even when the pendant groups contain the zwitterionic merocyanine form. The cloud point of the aqueous solution of the samples in the spiropyran form is slightly (less than 1 degrees C) lower than that bearing the merocyanine group. Moreover, the photoinduced phase transition is demonstrated at an optimum temperature for the spiropyran-bearing poly(2-isopropyl-2-oxazoline). This material can be made applicable to a light-driven drug releasing system by introducing a hydrophobic group to form micelles and increasing the photoinduced change of the cloud point. | [Machida, Shinjiro; Nakamura, Yuta; Itaya, Akira; Ikeda, Noriaki] Kyoto Inst Technol, Fac Mat Sci & Engn, Sakyo Ku, Kyoto 6060962, Japan | Kyoto Institute of Technology | Machida, S （連絡著者）、Kyoto Inst Technol, Fac Mat Sci & Engn, Sakyo Ku, Kyoto 6060962, Japan. | machida@kit.ac.jp | MACROMOL CHEM PHYS | Macromol. Chem. Phys. | NOV | 2019 | 220 | 22 | 1900240 | 10.1002/macp.201900240 | http://dx.doi.org/10.1002/macp.201900240 | ||
| Wang, BB; Xiao, XZ; Zhang, YH; Liao, LQ | Wang, Beibei; Xiao, Xiaozhen; Zhang, Yuhuan; Liao, Liqiong | High strength dual-crosslinked hydrogels with photo-switchable color changing behavior | EUROPEAN POLYMER JOURNAL | Hydrogel; Dual-crosslinked; High strength; Spiropyran | RESPONSIVE HYDROGELS; SURFACE; POLYMERS; DELIVERY; SYSTEMS; ROBUST | Herein, high strength dual-crosslinked hydrogels with photo-switchable color changing behavior were designed and fabricated. In the mixture solution of alpha-cyclodextrin (alpha-CD), alpha-cydodextrin-spiropyran (alpha-CD-SP), and poly (ethylene glycol) diacrylate (PEGDA), the PEGDA chains first threaded into the cavity of alpha-CD/alpha-CD-SP and form inclusion complexes to generate the physical gel; then, the as-prepared physical gels were subjected to photo-polymerization to form a covalently crosslinked network. With the contribution of both no-covalent and covalent bond, the dual-crosslinked hydrogels possess high tensile strength, which is about fifteen times that of the pure PEG hydrogel. And due to the sacrifice of no-covalent bond, hydrogels showed high energy dissipation ratio, up to 75.3% and high fatigue resistance during loading-unloading tests. While the ingenious introduction of SP moieties, enables the as-prepared gels photo-switchable spatiotemporal color changing behavior reversibly. Erasable patterns on hydrogels could be written using UV light and erased by Vis light for multiple cycles. This flexible hydrogel with good physical performance shows high potential in photochromic flexible wearable devices. | [Wang, Beibei] Wuhan Univ, Coll Chem & Mol Sci, Wuhan, Hubei, Peoples R China; [Xiao, Xiaozhen; Liao, Liqiong] Southern Med Univ, Biomat Res Ctr, Guangdong Prov Key Lab Construct & Detect Tissue, Sch Biomed Engn, Guangzhou, Guangdong, Peoples R China; [Zhang, Yuhuan] Southwest Univ, ICEAM, Chongqing, Peoples R China | Wuhan University; Southern Medical University - China; Southwest University - China | Liao, LQ （連絡著者）、Southern Med Univ, Biomat Res Ctr, Guangdong Prov Key Lab Construct & Detect Tissue, Sch Biomed Engn, Guangzhou, Guangdong, Peoples R China. | liqiongliao@hotmail.com | EUR POLYM J | Eur. Polym. J. | JUL | 2019 | 116 | 545 | 553 | 10.1016/j.eurpolymj.2019.04.035 | http://dx.doi.org/10.1016/j.eurpolymj.2019.04.035 | ||
| Zhang, H; Zhang, Y; Chen, Y; Wang, SP; Zhang, C; Liu, Y | Zhang, Hui; Zhang, Yi; Chen, Yong; Wang, Shuai-Peng; Zhang, Chang; Liu, Yu | Polyrotaxane in-situ copolymerization stretchable supramolecular hydrogels for photo-controlled cascade energy transfer | EUROPEAN POLYMER JOURNAL | Polyrotaxane; Cascade energy transfer; Hydrogel; Copolymerization; Photo-control | Amphiphilic polysorbate (Tween 80) encapsulated hydrophobic methyl acrylate (MA), spiropyran (SP), nitro-benzoxadiazole (NBDAE) and cyanine 5 (Cy5) was mixed to form micelles, which in-situ copolymerized with acrylamide (AM) and polyrotaxane (PR) containing polyethylene glycol (PEG) threaded into vinyl modified alpha-cyclodextrin (alpha-CD) with amantadine end-capping to form stretchable supramolecular hydrogel. Benefiting from the sliding cross-linking points of PR, the hydrogel exhibited excellent mechanical properties (1300 % breaking strain and 0.26 MPa breaking stress). Meanwhile, photoreactive achievement of reversible SP acted as primary energy acceptor tuned cascade energy transfer from energy donor NBDAE to secondary acceptor Cy5 (energy transfer efficiency = 80 % for primary transfer, 65 % for secondary transfer). Therefore, this stretchable supramolecular hydrogel material can achieve phototunable multi-color emission and be applied in the field of time-resolved information anti-counterfeiting. | [Zhang, Hui; Zhang, Yi; Chen, Yong; Wang, Shuai-Peng; Zhang, Chang; Liu, Yu] Nankai Univ, Coll Chem, State Key Lab Elemento Organ Chem, Tianjin 300071, Peoples R China; [Liu, Yu] Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin, Peoples R China | Nankai University; Collaborative Innovation Center of Chemical Science & Engineering Tianjin | Liu, Y （連絡著者）、Nankai Univ, Coll Chem, State Key Lab Elemento Organ Chem, Tianjin 300071, Peoples R China. | yuliu@nankai.edu.cn | EUR POLYM J | Eur. Polym. J. | JUN 23 | 2023 | 192 | 112070 | 10.1016/j.eurpolymj.2023.112070 | http://dx.doi.org/10.1016/j.eurpolymj.2023.112070 |
