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Fine-mapping and transcriptome analysis of the photosensitive leaf-yellowing gene CaLY1 in pepper(Capsicum annuum L.) 被引量:3
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作者 Sha Yang Zhuqing Zhang +6 位作者 Wenchao Chen Chengliang Liang Xuefeng Li Zhoubin Liu Qingzhi Cui Yanqing Ma Xuexiao Zou 《Horticultural Plant Journal》 SCIE CAS CSCD 2023年第1期122-132,共11页
Leaf color is directly related to altered photosynthesis.Hence,leaf yellowing mutants can be widely used for the researching plant physiology and functional genomes,for cultivating new varieties of popular horticultur... Leaf color is directly related to altered photosynthesis.Hence,leaf yellowing mutants can be widely used for the researching plant physiology and functional genomes,for cultivating new varieties of popular horticultural plants,and for identifying hybrid purity(as markers).Here,we constructed a^(60)Co-γF_(2)population from the leaf-yellowing mutant R24 via radiation mutation with the inbred line WT21 of pepper.Genetic analysis showed that the leaf-yellowing of the mutant was controlled by a single recessive gene.By applying the Bulk Segregation Analysis and Kompetitive Allele Specific PCR markers,the leaf-yellowing gene CaLY1(Capsicum annuum Leaf yellow 1)was mapped on chromosome 9,SNP5791587-SNP6011215,with a size of 214.5 kb.One non-synonymous mutated gene Capana09g000166 was found in the interval.The gene encoded a Psb X,which is the core complex of PSⅡ.Transcriptome analysis further showed that 2301 differentially expressed genes were identified under shading treatment for 24 h in R24.The Gene Ontology enrichment pathways were related to photosynthesis light harvesting,cell wall,activity of quercetin 3-O-glucosyltransferase and flavonoid metabolic process,which likely regulate the response of pepper leaves to different light levels.Functional enrichment analysis indicated that the most abundant pathways were photosynthesis antenna proteins and metabolic. 展开更多
关键词 PEPPER Leaf-color yellow FINE-MAPPING GENE photosensitive
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Development of Japonica Male Sterile Lines Integrating Cytoplasmic Male Sterility and Photosensitive Genic Male Sterility 被引量:2
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作者 WANG Shou-hai DU Shi-yun WANG De-zheng LI Cheng-quan 《Agricultural Sciences in China》 CAS CSCD 2005年第12期883-889,共7页
Acknowledgement It has been previously established that the BT type of cytoplasmic male sterility (CMS) is induced by high temperatures, while photosensitive genic male sterility (PGMS) seed sets by low temperatur... Acknowledgement It has been previously established that the BT type of cytoplasmic male sterility (CMS) is induced by high temperatures, while photosensitive genic male sterility (PGMS) seed sets by low temperatures induce. In the current study, we have bred photosensitive cytoplasmic male sterility (PCMS) lines (2308SA and 2310SA) by crossing the CMS line with the PGMS japonica line with maintainer genes. The sterility of PCMS japonica was consequently controlled by two groups of male sterile genes resulting from the integration of PGMS and CMS genes. The results on plant fertility, at different sowing times, were as follows: (a) Under conditions of natural long-day photoperiod and at temperatures above 35~C, the PGMS gene regulated PCMS japonica sterility - the higher the temperature, the lower the pollen fertility. However, bagged seed sets of PCMS japonica, not exposed to high temperatures, induced the CMS seed set. (b) Exposure to long-day photoperiod and temperature conditions between 35℃ and the critical sterility inducing temperature of PGMS resulted in both PGMS and CMS gene controlled sterility of PCMS japonica, which exhibited stable characteristics. (c) When exposed to critical sterility inducing temperatures or short-day photoperiod and daily high temperatures below 32℃, the BT type of the CMS gene regulated PCMS sterility. Under these conditions, the PGMS gene rendered male sterility insusceptible to occasional cool summer days when this PCMS line, adopted for hybrid seed production, develops into panicle differentiation stage. The present study also investigated the fertility restoration, seed production and combining ability of PCMS japonica so as to optimize its use. 展开更多
关键词 Oryza sativa var. japonica photosensitive genic male sterility Cytoplasmic male sterility GENE photosensitive cytoplasmic male sterility
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Preparation of a Novel Cationic Photosensitive Resin(3D-SLR01) for Stereolithography 3D Printing and Determination of Its Some Properties 被引量:4
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作者 HUANG Biwu WU Baolin +2 位作者 HAN Linlin LU Zhenting ZHOU Wenbin 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2019年第4期761-768,共8页
A novel cationic photosensitive resin(3 DSLR-01) for stereolithography 3 D printing was prepared with 3,4-epoxycyclohexylmethyl-3’,4’-epoxycyclohexane carboxylate(2021 P),1,4-cyclohexanedimethanol glycidyl ether(JX-... A novel cationic photosensitive resin(3 DSLR-01) for stereolithography 3 D printing was prepared with 3,4-epoxycyclohexylmethyl-3’,4’-epoxycyclohexane carboxylate(2021 P),1,4-cyclohexanedimethanol glycidyl ether(JX-026), diglycidyl 4,5-epoxycyclohexane-1,2-dicarboxylate(S-186), polycaprolactone polyol(Polyol-0305), novolac epoxy resin(F-51), bis(3-ethyl-3-oxetanylmethyl) ether(S-221) and a mixture of triarylsulfonium hexafluoroantimonate salts solution(UVI-6976). The properties of the photosensitive resin and its UV-cured films were investigated by some instruments and equipment.The experimental results show that the critical exposure(Ec) of the photosensitive resin is 16.3 mJ/cm^2, the penetration depth(Dp) is 0.14 mm, and the optical property of the photosensitive resin is excellent. Rectangle plates were printed by using a stereolithography apparatus(HRPL-150 A) with the photosensitive resin as the manufacturing material, and the shrinkage rates of the plates were less than 0.60%, which showed that the accuracy of the manufactured plates was very high. 展开更多
关键词 STEREOLITHOGRAPHY photosensitive RESIN 3D PRINTING laser
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Application of Bis[2-(3,4-epoxycyclohexyl)ethyl]octamethyltetrasiloxane in the Preparation of a Photosensitive Resin for Stereolithography 3D Printing 被引量:4
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作者 HUANG Biwu HAN Linlin +3 位作者 WU Baolin CHEN Hao ZHOU Wenbin LU Zhenting 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2019年第6期1470-1478,共9页
Bis[2-(3,4-epoxycyclohexyl)ethyl]octamethyltetrasiloxane is also called diepoxycyclohexylethyl octamethyltetrasiloxane. In the present paper, diepoxycyclohexylethyl octamethyltetrasiloxane was synthesized, and the syn... Bis[2-(3,4-epoxycyclohexyl)ethyl]octamethyltetrasiloxane is also called diepoxycyclohexylethyl octamethyltetrasiloxane. In the present paper, diepoxycyclohexylethyl octamethyltetrasiloxane was synthesized, and the synthesized product was characterized by FTIR and 1 HMR. The synthesized product was compounded with some acrylates and an expoxide as well as photoinitiators to obtain a 3D printing stereolithography resin(3DSLR111). The properties of 3DSLR111 and its UV-cured samples were investigated by some instruments and equipments. The experimental results show that the critical exposure(Ec) of 3DSLR111 is 10.1 mJ/cm^2, its penetration depth(Dp) is 0.15 mm, and its viscosity at 30 ℃ is 319 mPa·s. Some samples were printed with 3DSLR111, and their linear shrinkage and warping factor were evaluated. The linear shrinkage and the curl distortion factor are less than 0.80% and 7.30%, respectively, which indicates that the sample printed with 3DSLR111 has high accuracy, and that the synthesized diepoxycyclohexylethyl octamethyltetrasiloxane can be well applied to the preparation of the photosensitive resin for stereolithography 3D printing. 展开更多
关键词 STEREOLITHOGRAPHY LASER photosensitive resin ACCURACY 3D printing
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Preparation of A Novel Hybrid Type Photosensitive Resin for Stereolithography in 3D Printing and Testing on the Accuracy of the Fabricated Parts 被引量:9
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作者 黄笔武 DU Zhipeng +1 位作者 YONG Tao HAN Wenjuan 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2017年第3期726-732,共7页
A novel hybrid type photosensitive resin for stereolithography in 3D printing was prepared with bisphenol A type epoxy diacrylate (EA-612), tripropylene glycol diacrylate (TPGDA),ethoxylated trimethyolpropane tria... A novel hybrid type photosensitive resin for stereolithography in 3D printing was prepared with bisphenol A type epoxy diacrylate (EA-612), tripropylene glycol diacrylate (TPGDA),ethoxylated trimethyolpropane triacrylate(EO3TMPTA), cycloaliphatic diepoxide(ERL-4221),polycaprolactonepolyol(Polyol-0301),1-hydroxy-cyclohphenyl ketone(Irgacure184), and a mixture of triarylsulfonium hexafluoroantimonate salts (Ar3SSbF6). The novel hybrid type photosensitive resin was the photosensitive resin of an epoxy-acrylate hybrid system, which proceeded free radical polymerization and cationic polymerization in ultraviolet (UV) laser. Cuboid parts and double-cantilever parts were fabricated by using a stereolithography apparatus with the novel hybrid type photosensitive resin as the processing material,and the dimension shrinkage factor and the curl factor were tested. The shrinkage factor was less than 2.00%,and the curl factor was less than 8.00%, which showed that the accuracy of the fabricated parts was high with the photosensitive resin for stereolithography in 3D printing. 展开更多
关键词 laser photosensitive resin stereolithography part accuracy 3D printing
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Synthesis and Characterization of Photosensitive Poly(imide sulfonates) for Fuel Cell Application 被引量:1
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作者 文璞山 LIU Hui +2 位作者 KIM Jae Hoon LI Xiangdan LEE Myong-Hoon 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2013年第4期635-642,共8页
The novel sulfonated polyimide membranes were successfully synthesized by thermal imidization with monomers of 4,4'-(hexafluoroisopropylidene)diphthalic anhydride (6FDA), 4,4'-diamino- diphenyl ether-2,2'-disul... The novel sulfonated polyimide membranes were successfully synthesized by thermal imidization with monomers of 4,4'-(hexafluoroisopropylidene)diphthalic anhydride (6FDA), 4,4'-diamino- diphenyl ether-2,2'-disulfonic acid (SODA) and 3,3 '-diaminochalcone (3DAC). Photosensitive chalcone moiety was introduced to the main chain of copolymers, and the photocrosslinking of resulting copolymer in aqueous electrolyte was attempted. A series of sulfonated copolyimide precursors containing chalcone functional groups in the main chain were prepared with different sulfonation degrees by controlling the molar ratio of SODA, 6FDA and 3DAC. The polymer membranes were prepared from these sulfonated aromatic precursors by solution casting and subsequent thermal imidization. The crosslinking with UV irradiation was attempted in the presence or absence of distilled water. The characterizations of the resulting membrane such as the ion-exchange capacity, water absorption and ionic conductivity were performed with respect to the copolymer compositions and the photocrosslinking conditions. 展开更多
关键词 sulfonated polyimide photosensitive CHALCONE polymer electrolyte membrane fuel cell
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Green synthesis of Chlorin e6 and tests of its photosensitive bactericidal activities
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作者 Guocai Zhang Jing Yang +6 位作者 Chunping Hu Xiucheng Zhang Xiao Li Shan Gao Xiao Ouyang Ning Ma Hao Wei 《Journal of Forestry Research》 SCIE CAS CSCD 2019年第6期2349-2356,共8页
Phototoxic treatments of pathogenic bacteria and fungi of trees induce oxidative damage that is preferable to toxic chemical treatment.Here,we used green methods to synthesize Chlorin e6 from chlorophyll a,which was e... Phototoxic treatments of pathogenic bacteria and fungi of trees induce oxidative damage that is preferable to toxic chemical treatment.Here,we used green methods to synthesize Chlorin e6 from chlorophyll a,which was extracted from crude silkworm excrement using concentrated(strong)alkali hydrolysis and acidification.The photosensitive bactericidal activities of the new chlorin were tested in vitro,and possible mechanisms of action are discussed.The results showed that Chlorin e6 can be lightactivated to have bactericidal activity against Escherichia coli,Bacillus subtilis and Fusarium oxysporum,but it had little bactericidal effect in the dark.This kind of chlorin compounds has great potential as a natural phototoxic antimicrobial compound to control harmful bacteria on the leaves in forestry systems. 展开更多
关键词 CHLORIN E6 photosensitive BACTERICIDAL ACTIVITIES
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Coupling boron-modulated bimetallic oxyhydroxide with photosensitive polymer enable highly-active and ultra-stable seawater splitting
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作者 Weiju Hao Chengyu Fu +4 位作者 Yingming Wang Kui Yin Hongyuan Yang Ruotao Yang Ziliang Chen 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2022年第12期26-37,I0002,共13页
Seawater photoelectrolysis is showing huge potential in green energy conversion field,yet it is still a formidable challenge to develop one catalyst that can drive the electrolysis reaction stably,economically and eff... Seawater photoelectrolysis is showing huge potential in green energy conversion field,yet it is still a formidable challenge to develop one catalyst that can drive the electrolysis reaction stably,economically and efficiently.Motivated by this point,the inorganic–organic hybridization strategy is proposed to insitu construct one hierarchical electrode via concurrent electroless plating and polymerization,which assures the growth of boron-modulated nickel–cobalt oxyhydroxide nanoballs and photosensitive polyaniline nanochains on the self-supporting Ti-based foil(B-Co Ni OOH/PANI@TiO_(2)/Ti).Upon inducing photoelectric effect(PEE),the designed target electrode delivers overpotentials as low as 196 and 398 mV at 100 mA cm^(-2)for hydrogen evolution reaction(HER)and oxygen evolution reaction(OER),respectively,corresponding to an activity enhancement by about 15%as compared to those without PEE.Inspiringly,when served as bifunctional electrocatalysts for overall seawater electrolysis,it can stably maintain at 200 mA cm^(-2)with negligible decay over 72 h.Further analysis reveals that the exceptional catalytic performance can be credit to the B-CoNiOOH,polyaniline(PANI)and TiO_(2)subunit coupling-induced physically and chemically synergistic catalysis effect such as admirable composition stability,photoelectric function and adhesion capability.The finding in this contribution may trigger much more broad interest to the novel hybrid catalysts consisting of photosensitive polymer and transition metal-based electrocatalysts. 展开更多
关键词 photosensitive polymer B-modulated nanohybrid Electroless plating Photoelectric effect Seawater splitting
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A Convenient Synthesis and Properties of Ru(bpy)_2[bpy(CO_2H)-(CO_2Et)](PF_6)_2 Photosensitive Dye
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作者 ShiGuoSUN XiaoJunPENG YongQianXU LeiSHI ZhenGUO LiChengSUN 《Chinese Chemical Letters》 SCIE CAS CSCD 2004年第8期969-972,共4页
A novel Ru(Ⅱ) tris-bipyridyl complex, Ru(bpy)2[bpy(CO2H)(CO2Et)][PF6]2 is prepared in a simple and convenient process. It will be an alternativ?of Ru(bpy)2bpy(CO2Et)2(PF6)2 to be used in solar cel須 as photosensitive... A novel Ru(Ⅱ) tris-bipyridyl complex, Ru(bpy)2[bpy(CO2H)(CO2Et)][PF6]2 is prepared in a simple and convenient process. It will be an alternativ?of Ru(bpy)2bpy(CO2Et)2(PF6)2 to be used in solar cel須 as photosensitive dyes. 展开更多
关键词 Ruthenium(Ⅱ) tris-bipyridyl complex photosensitive dyes light stability electrochem-istry.
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The photosensitive effect of Ce on the precipitation of Ag nanoparticles induced by femtosecond laser in silicate glass
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作者 戴晔 邱建荣 《Chinese Physics B》 SCIE EI CAS CSCD 2009年第7期2858-2863,共6页
This paper studies the photosensitive effect of cerium oxide on the precipitation of Ag nanoparticles after femtosecond laser irradiating into silicate glass and successive annealing.Spectroscopy analysis and diffract... This paper studies the photosensitive effect of cerium oxide on the precipitation of Ag nanoparticles after femtosecond laser irradiating into silicate glass and successive annealing.Spectroscopy analysis and diffraction efficiency measurements show that the introduction of cerium oxide may increase the concentration of Ag atoms in the femtosecond laser-irradiated regions resulting from the photoreduction reaction Ce^3+ + Ag^+ → Ce^4+ + Ag^0 via multiphoton excitation.These results promote the aggregation of Ag nanopartieles during the annealing process. It is also found that different concentrations of cerium oxide may influence the Ag nanoparticle precipitation in the corresponding glass. 展开更多
关键词 femtosecond laser glass photosensitive effect
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Suppression of Cladding Mode Coupling by B/Ge Codoped Photosensitive Fiber With Photosensitive and Depressed Inner Cladding 被引量:2
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作者 龚岩栋 简水生 《High Technology Letters》 EI CAS 2000年第2期56-60,共5页
Excess loss on the short wavelength side of the Bragg resonant wavelength caused by cladding mode coupling limits wide use of grating in the fiber communication system, especially in densed wavelength division multipl... Excess loss on the short wavelength side of the Bragg resonant wavelength caused by cladding mode coupling limits wide use of grating in the fiber communication system, especially in densed wavelength division multiplexing (DWDM) system. A novel photosensitive fiber design that have depressed cladding and photosensitive inner cladding in the same fiber is proposed, which can suppress cladding mode coupling greatly. Using MCVD method B/Ge codoped fiber with depressed cladding was fabriceted out, which was also doped in boron and germanium and had the photosensitivity. Finally, the transmission spectrum of written grating in this fiber by phase mask method verified its larger photosensitivity and greatly suppression of cladding mode coupling. 展开更多
关键词 FIBER Grating PHOTOSENSITIVITY CLADDING mode Coupling
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Synthesis of Two Novel Rhenium(I) Bipyridyl Photosensitive Dyes 被引量:1
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作者 ShiGuoSUN XiaoJunPENG MingWenFAN YongQianXU LeiSHI LiChengSU 《Chinese Chemical Letters》 SCIE CAS CSCD 2004年第8期965-968,共4页
Two novel rhenium(I) 2, 2'-bipyridyl complexes, [(4,4'-di-COOEt-bipy) Re(CO)3 (NCCH3)PF6] and [(4,4'-di-COOEt-bipy) Re (CO)3 (NCS)], a model complex [(4,4'-di- COOEt-bipy) Re (CO)3 (pyridine)PF6], were... Two novel rhenium(I) 2, 2'-bipyridyl complexes, [(4,4'-di-COOEt-bipy) Re(CO)3 (NCCH3)PF6] and [(4,4'-di-COOEt-bipy) Re (CO)3 (NCS)], a model complex [(4,4'-di- COOEt-bipy) Re (CO)3 (pyridine)PF6], were synthesized. Their ground stat?electronic spectra and emission spectra were measured in acetonitrile. The MLCT absorption maximum of the complex exhibited a considerable red shift as the ligand changed from pyridine to CNCH3, or SCN. 展开更多
关键词 Rhenium(I) 2 2'-bipyridyl complex PHOTOSENSITIZER red shift.
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Syntheses and Photosensitive Effects of Rare Earth Carboxylate Complexes
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作者 林宜超 《Journal of Rare Earths》 SCIE EI CAS CSCD 1996年第2期98-104,共7页
Six kinds of cerium carboxylate (CeCar(3)) and rare earth carboxylate (RECar(3), RE=La+Ce+Pr) complexes were synthesized, and the compositions and characters of these complexes were studied by elementary analysis, the... Six kinds of cerium carboxylate (CeCar(3)) and rare earth carboxylate (RECar(3), RE=La+Ce+Pr) complexes were synthesized, and the compositions and characters of these complexes were studied by elementary analysis, thermo-gravimetric and differential thermal analysis (TG-DTA), infrared (IR) spectroscopy and ultra violet (UV) spectroscopy. The carbonyl indexes (CI) of law density polyethylene (LDPE) films containing CeCar(3) or RECar(3) during UV photooxidation were determined by IR spectroscopy. The effects of CeCar(3) or RECar(3) on the UV photooxidation rates, viscosity and average molecular weights (M(n)) of LDPE films were studied by using CI, and their mechanisms in sensitizing photooxidation degradation of LDPE films are discussed. Results show that the lifetime of LDPE films can be controlled by adding 0.1 wt%similar to 0.3 wt% CeCar(3) complexes to LDPE films. 展开更多
关键词 rare earth carboxylate PHOTOSENSITIZER LDPE photooxidative degradation
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A Photosensitive Copolymer for UV-curable Electrodeposition Coatings
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作者 刘仁 刘晓亚 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2011年第6期1098-1102,共5页
A series of photosensitive random copolymers (UPDHES) were prepared by introducing acrylate groups onto the side chain of the copolymer backbone of N, N-domethyl amimethyl methacrylate (DMAEMA), 2-hydroxypropyl ac... A series of photosensitive random copolymers (UPDHES) were prepared by introducing acrylate groups onto the side chain of the copolymer backbone of N, N-domethyl amimethyl methacrylate (DMAEMA), 2-hydroxypropyl acrylate (HEA), 2-ethylhexyl acrylate (EHA), and styrene (St) (PDHES). The molecular structure of UPDHES was characterized by FTIR, 1HNMR and GPC. The photopolymerization kinetics of UPDHES with different C=C content was investigated using real time FTIR in which it was found that the UPDHES system had notable photosensitivity. The effect of C=C content on the properties of cured films were studied by evaluating various film properties such as thermal stability, glass transition temperature and tensile properties. The thermal degradation of cured films was investigated via thermogravimetric analysis/infrared spectrometry (TGA-IR). Thus a series of UV-curable electrodeposition coatings with good photosensitivity and mechanical properties were prepared from a low-cost photosensitive random copolymer. 展开更多
关键词 UV-CURABLE electrodeposition coatings PHOTOSENSITIVITY
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Radiation construction and excellent performances of Ag NPs/TiO_(2)/PEG/PVP multifunctional aerogel:Adsorption-photocatalytic degradation,photosensitive antibacterial and cytotoxicity 被引量:1
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作者 Jin-Yu Yang Dong-Liang Liu +2 位作者 Yue-Sheng Li Xiao-Jie Yang Yi Liu 《Journal of Materiomics》 SCIE CSCD 2024年第3期585-593,共9页
A cutting-edge method known as photocatalytic antibacterial technology can effectively eliminate drug-resistant bacterial strains and boast a wide-ranging antimicrobial capability.In the study,a novel Ag NPs/TiO_(2)/P... A cutting-edge method known as photocatalytic antibacterial technology can effectively eliminate drug-resistant bacterial strains and boast a wide-ranging antimicrobial capability.In the study,a novel Ag NPs/TiO_(2)/PEG/PVP(ATPP)aerogel photocatalyst was synthesized by an electron beam in-situ radiation method using polyethylene glycol(PEG),polyvinylpyrrolidone(PVP),AgNO_(3),and TiO_(2)as raw materials.ATPP was characterized by X-ray diffraction spectroscopy(XRD),X-ray photoelectron spectroscopy(XPS)and solid ultraviolet diffuse reflectance spectroscopy(UV-Vis DRS).The results demonstrated that silver ions were reduced to silver nanoparticles by electron beam radiation method.At the same time,the doping of silver nanoparticles(Ag NPs)enhanced visible-light adsorption.The degradation rate of methylene blue(MB)on 5%(in mass)ATPP could reach 81%under visible light for 180 min.Escherichia coli(E.coli)and Staphylococcus aureus(S.aureus)were used as model bacteria to explore the antimi-crobial properties of ATPP by zone of the inhibition method,plate counting method and live/dead bacterial staining.Cyclic antibacterial experiments showed that the antibacterial effect of ATPP was sustainable.Meanwhile,MTT assay and Hoechst33342/PI double staining were used to prove that the composite had good biocompatibility.The aerogel photocatalytic material has the potential to decrease microbial presence in both medical and environmental settings,making it a valuable tool for such applications. 展开更多
关键词 Ag NPs/TiO_(2)/PEG/PVP aerogel Electron beam radiation Adsorption-photocatalytic photosensitive antibacterial CYTOTOXICITY
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Controllable CPL response driven by achiral UV-photosensitive dichroic dye through cholesteric liquid crystals
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作者 Yihan Chen Yang Li +3 位作者 Hang Li Lulu Li Yiwu Quan Yixiang Cheng 《Science China Chemistry》 SCIE EI CAS CSCD 2024年第4期1250-1255,共6页
Versatile stimuli-responsive circularly polarized luminescent(CPL)materials have potential applications in information storage,security encryption,and intelligent displays.In this study,the Z/E isomerization of ultrav... Versatile stimuli-responsive circularly polarized luminescent(CPL)materials have potential applications in information storage,security encryption,and intelligent displays.In this study,the Z/E isomerization of ultraviolet(UV)-photosensitive achiralα-cyanostilbene derivative was used as an achiral dichroic dye(Switch)to drive the controllable CPL-active response in cholesteric liquid crystals(CLCs).Under irradiation by 365 nm UV light,the resulting CLCs-Z-Switch underwent a Z-to-E configuration isomerization as CLCs-E-Switch,accompanied by a decrease in its dichroic order parameter(SFvalue)from 0.15to 0.07.Although the quantum yield(QY)of CLCs-E-Switch increased from 8.1%(CLCs-Z-Switch)to 16.8%,the corresponding glumvalues of CPL emission decreased from+0.55/-0.57 to+0.37/-0.39 due to a decrease in the order of helical arrangement of E-Switch in E7 media.This study enables photosensitive CLCs-Switch to be applied for optical information storage devices. 展开更多
关键词 circularly polarized luminescent photosensitive dichroic dye cholesteric liquid crystals chiral induction
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Nanostructured self-assemblies of photosensitive dyes: green and efficient theranostic approaches 被引量:1
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作者 Hao Liu Xue-Yan Li +1 位作者 Xingshu Li Jian-Dong Huang 《Green Chemical Engineering》 EI CSCD 2023年第4期399-416,共18页
Recently,nano theranostics,by integrating diagnostic and therapeutic functions into a nano system,have provided increasing opportunities for the design of personalized medicine in cancer.Among the construction method ... Recently,nano theranostics,by integrating diagnostic and therapeutic functions into a nano system,have provided increasing opportunities for the design of personalized medicine in cancer.Among the construction method of various theranostic nano systems,the design of single component nanoparticles which are composed of organic photosensitive dyes has become a promising approach to constructing multifunctional nano-theranostic systems,thanks to its unique advantages such as defined structure,100%loading,and high repeatability.Specifically,depending on the inherent photonic imaging and therapeutic properties of the photosensitive dyes,the multifunctional purpose which integrates theranostic effects and targeting abilities can be realized via reasonable molecular modification and supramolecular assembly.In this review,recent advances in the development of nanostructured self-assemblies of porphyrins,phthalocyanines,and boron-dipyrromethanes for theranostics are summarized.Emphasis on their design consideration and theranostic applications are presented.Additionally,prospects for clinical practice and potential challenges of this rapidly growing field are also provided. 展开更多
关键词 THERANOSTIC DYE PHOTOSENSITIZER Multifunctional nanoparticle Self-assembly
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PREPARATION AND APPLICATION OF PHOTOSENSITIVE COPOLYMERS FOR PDP BARRIER RIBS FORMED BY PHOTOLITHOGRAPHY
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作者 Tao Zhang Qian-wen Dong +1 位作者 Wei Zhang 魏杰 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 2013年第3期444-451,共8页
In this work, the photosensitive paste was prepared. It was comprised of inorganic particles and a photosensitive organic component. The inorganic panicles included glass, ceramics, and metals. The organic component s... In this work, the photosensitive paste was prepared. It was comprised of inorganic particles and a photosensitive organic component. The inorganic panicles included glass, ceramics, and metals. The organic component should contain at least the following photosensitive materials: photosensitive monomers, photoreactive copolymer and photopolymerization initiators. The photoreactive copolymer played a role of an adhesive in the photosensitive paste. Meanwhile in the development stage, the carboxyl groups of the copolymer reacted with the alkalescent developer. Following this, the unexposed part must be removed and an excellent pattern can be formed. A series of three-component acrylic copolymers (MAA/St/MMA) were designed, and then synthesized via free radical polymerization. Subsequently glycidyl methacrylate (GMA) was employed to modify the prepared copolymers through ring-opening reactions between the carboxyl groups and the epoxide groups. Eventually the photosensitive copolymers were obtained and used to form the barrier ribs of PDPs. The chemical structure, glass transition temperature, acid value and molecular weight of photosensitive copolymers had different effects on the structure and pattern of PDP barrier ribs. Through analyzing effects of different polymer performance parameters on the patterns of barrier ribs, the optimal photosensitive copolymer was acquired. 展开更多
关键词 Plasma display panel Barrier rib photosensitive copolymer photosensitive paste.
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Raman spectroscopic study of DNA after photosensitive damage caused by hypocrellins A and B 被引量:6
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作者 许以明 张志义 张洪雨 《Science China(Life Sciences)》 SCIE CAS 1998年第4期360-366,共7页
Laser Raman spectroscopy provided the direct evidence for microcosmic photodamage in space structure of DNA molecule. When photosensitive damage was made to space structure of calf thymus DNA by hypocrellins A and B, ... Laser Raman spectroscopy provided the direct evidence for microcosmic photodamage in space structure of DNA molecule. When photosensitive damage was made to space structure of calf thymus DNA by hypocrellins A and B, the Raman characteristic frequencies and the intensities of the bands assigned to various groups of the components of DNA (phosphate backbone deoxyribose and four bases) changed at various degrees. There were not only the strand breakage, but also the breakage of some H bonds and disruption of vertical base base stacking interactions. The photosensitive damage of hypocrellin B on DNA was stronger than that of hypocrellin A on DNA. 展开更多
关键词 DNA HYPOCRELLIN A HYPOCRELLIN B photosensitive DAMAGE RAMAN spectroscopy.
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Photosensitive hydrogels: from structure, mechanisms, design to bioapplications 被引量:5
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作者 Wenhui Ji Qiong Wu +5 位作者 Xisi Han Wei Zhang Wei Wei Liang Chen Lin Li Wei Huang 《Science China(Life Sciences)》 SCIE CAS CSCD 2020年第12期1813-1828,共16页
Hydrogel is a smart material with a three-dimensional network structure and has been widely used in various fields due to its good biodegradability, biocompatibility, and modification. Photosensitive hydrogel is a sma... Hydrogel is a smart material with a three-dimensional network structure and has been widely used in various fields due to its good biodegradability, biocompatibility, and modification. Photosensitive hydrogel is a smart hydrogel, and its amenability to remote, precise control, and flexible and convenient regulation of stimulating factors make it an ideal candidate for use in fields such as biological materials, drug carriers, and sensors. In this review, we discuss the structure, mechanisms, design principles,and bioapplications of photosensitive hydrogels as developed in recent years. Finally, their potential for development and potential future challenges are outlined. 展开更多
关键词 photosensitive hydrogels FLEXIBLE bioapplications DETECTION smart materials
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