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Surface plasmon resonance on the LB monolayer of solvent-soluble silicon phthalocyanine 溶剂溶性酞菁硅LB单层表面等离子体共振
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00091-1
Qing Zhang , Bin He , Qing Dai , Jian-hua Gu , Ning Gu , Deyin Huang
{"title":"Surface plasmon resonance on the LB monolayer of solvent-soluble silicon phthalocyanine","authors":"Qing Zhang ,&nbsp;Bin He ,&nbsp;Qing Dai ,&nbsp;Jian-hua Gu ,&nbsp;Ning Gu ,&nbsp;Deyin Huang","doi":"10.1016/S0968-5677(98)00091-1","DOIUrl":"10.1016/S0968-5677(98)00091-1","url":null,"abstract":"<div><p>Thin films of <em>bis</em>-(<em>p</em>-chlorophenoxy) (<em>tetra</em>-4-nitrophthalocyaninato)silicon, TNPcSi(OPhCl-<em>p</em>)<sub>2</sub>, were prepared by using Langmir-Blodgett techniques and the morphology of the film was investigated by AFM (atomic force microscope) analysis. It has been found that the LB films were successfully transferred onto substrates like mica, gold deposited glass, and pure glass with domains aggregated on the substrates. Surface plasmon resonance has been used to investigate the interaction between sulfur dioxide and a monolayer of TNPcSi(OPhCl-<em>p</em>)<sub>2</sub> LB film. It has been found that the monolayer of LB film transferred onto gold deposited glass gave a 0.55° shift of resonant angle and an additional 0.45° shift of resonant angle after exposion in sulfur dioxideatomospheric ambient for twenty minute. The UV–visible absorption spectrum of the LB films of TNPcSi(OPhCl-<em>p</em>)<sub>2</sub> showed that there is chemical changes in the film after the exposure to the sulfur dioxide ambient. This work has shown a promising application as an optical gas sensor.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 631-634"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00091-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82351536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Monolayer behaviors for the photochromic liquid crystalline copolymers with azobenzene and cholesterol side groups 偶氮苯和胆固醇侧基光致变色液晶共聚物的单层行为
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00081-9
X. Chen , Q.B. Xue , K.Z. Yang , Y. Wang , J.Z. Zhang , Q.Z. Zhang
{"title":"Monolayer behaviors for the photochromic liquid crystalline copolymers with azobenzene and cholesterol side groups","authors":"X. Chen ,&nbsp;Q.B. Xue ,&nbsp;K.Z. Yang ,&nbsp;Y. Wang ,&nbsp;J.Z. Zhang ,&nbsp;Q.Z. Zhang","doi":"10.1016/S0968-5677(98)00081-9","DOIUrl":"10.1016/S0968-5677(98)00081-9","url":null,"abstract":"<div><p>Monolayer behaviors for a series of newly synthesized photochromic liquid crystalline copolymers were studied. Results showed that the azo-homopolymer would aggregate heavily after spreading and its monolayer was not suitable for deposition of the reversible photochromic LB film. However, the liquid crystallinity, which resulted by introducing mesogenic cholesteric side chains, could reduce monolayer aggregation and improve reversible photoinduced structural change in LB films.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 591-593"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00081-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78709756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Optimal fabrication condition of bacteriorhodopsin films by electrophoretic sedimentation technique 电泳沉淀法制备细菌紫质膜的最佳工艺条件
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00103-5
Junhong Min , Hyun-Goo Choi , Jeong-Woo Choi , Won Hong Lee , Rak Kim
{"title":"Optimal fabrication condition of bacteriorhodopsin films by electrophoretic sedimentation technique","authors":"Junhong Min ,&nbsp;Hyun-Goo Choi ,&nbsp;Jeong-Woo Choi ,&nbsp;Won Hong Lee ,&nbsp;Rak Kim","doi":"10.1016/S0968-5677(98)00103-5","DOIUrl":"10.1016/S0968-5677(98)00103-5","url":null,"abstract":"<div><p>The photocurrent of bacteriorhodopsin (bR) films fabricated by electrophoretic sedimentation (EPS) technique was investigated. The fabrication conditions by EPS, the intensity of electric field and exposure time, affected the photoelectric response and topology of bR films. Based on the photoelectric response and surface topology measured by an atomic force microscope (AFM), the optimal electric field for the fabrication of oriented bR film was 20<!--> <!-->V/cm. The exposure time of 45<!--> <!-->s did not affect the photocurrent of bR film but longer exposures damaged the bR films. The action spectrum of bR films fabricated by EPS technique was well consistent to the absorption spectrum of bR solution.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 687-690"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00103-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86416477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Preparation of asymmetric bilayer-vesicles with inner and outer monolayers composed of different amphiphilic molecules 由不同两亲性分子组成的内外单分子不对称双层囊泡的制备
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00088-1
Zhongdang Xiao, Minhua Xu, Ming Li, Zuhong Lu, Yu Wei
{"title":"Preparation of asymmetric bilayer-vesicles with inner and outer monolayers composed of different amphiphilic molecules","authors":"Zhongdang Xiao,&nbsp;Minhua Xu,&nbsp;Ming Li,&nbsp;Zuhong Lu,&nbsp;Yu Wei","doi":"10.1016/S0968-5677(98)00088-1","DOIUrl":"10.1016/S0968-5677(98)00088-1","url":null,"abstract":"<div><p>Asymmetric vesicles were prepared layer by layer from reverse micelles. The aqueous solution was first entrapped into reverse micelles prepared from lipid, then these reverse micelles penetrated the monolayer formed by another kind of amphiphilic agent at organic solvent/water interface by centrifugation and were assembled spontaneously by the second layer to form asymmetric vesicles. In general, the diameters of the vesicles ranged from 30 to 100<!--> <!-->nm. A fluorescein quenching experiment showed that asymmetric vesicles with the inner layer being lipid and the outer layer being single-chain amphiphilic molecules, [(bpy)<sub>2</sub> Ru(diazafluorenone) (CH<sub>2</sub>)<sub>15</sub>CH<sub>3</sub>](PF<sub>6</sub>)<sub>2</sub>, were successfully prepared. The half-life of flip–flop of the amphiphilic molecules between inner and outer layers was estimated to be about 17 days.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 619-622"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00088-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88547155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
All solid-state electrochromic smart window of electrodeposited WO3 and prussian blue film with PVC gel electrolyte 全固态电致变色智能窗是用PVC凝胶电解质电沉积WO3和普鲁士蓝薄膜
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00096-0
Lianyong Su, Hong Wang, Zuhong Lu
{"title":"All solid-state electrochromic smart window of electrodeposited WO3 and prussian blue film with PVC gel electrolyte","authors":"Lianyong Su,&nbsp;Hong Wang,&nbsp;Zuhong Lu","doi":"10.1016/S0968-5677(98)00096-0","DOIUrl":"10.1016/S0968-5677(98)00096-0","url":null,"abstract":"<div><p>An all solid-state electrochromic smart window of prussian blue and electrodeposited WO<sub>3</sub> film with poly(vinyl chloride) (PVC) gel electrolyte was fabricated. The smart window has been found to be excellent for electrochromism and memory characteristics. The transmittance response only lost less than 10% of the initial magnitude even after the potential stepping of 5000 cycles.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 657-659"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00096-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83618172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
Preparation and structural properties of an azobenzene liquid crystal Langmuir–Blodgett film 偶氮苯液晶Langmuir-Blodgett薄膜的制备及其结构性能
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00082-0
Jian Jin , Lin Song Li , Yan Jie Zhang , Yan Qing Tian , Ying Ying Zhao , Dong Fang Shen , Tie Jin Li , Shi Mei Jiang , Ning Zheng
{"title":"Preparation and structural properties of an azobenzene liquid crystal Langmuir–Blodgett film","authors":"Jian Jin ,&nbsp;Lin Song Li ,&nbsp;Yan Jie Zhang ,&nbsp;Yan Qing Tian ,&nbsp;Ying Ying Zhao ,&nbsp;Dong Fang Shen ,&nbsp;Tie Jin Li ,&nbsp;Shi Mei Jiang ,&nbsp;Ning Zheng","doi":"10.1016/S0968-5677(98)00082-0","DOIUrl":"10.1016/S0968-5677(98)00082-0","url":null,"abstract":"<div><p>Azobenzene-containing liquid crystal, 2-hydroxy-4-hexyloxy-4′-hexyloxy azobenzene (AB), was synthesized and used to produce LB films. The surface pressure <em>vs</em> surface area isotherm showed that the liquid crystal molecules formed a stable multilayer on the water subphase owing to the self-assembly for their much smaller area per molecule with 0.1<!--> <!-->nm<sup>2</sup> at <em>π</em>=0 and 0.07<!--> <!-->nm<sup>2</sup> at collapse point. This spontaneous behavior was also confirmed by small angle X-ray diffraction for a ‘horizontally once-transferred’ LB film. The ‘vertically multi-transferred’ LB film also exhibited the same ordered layer structure with the long spacing of the multilayer about 2.0<!--> <!-->nm. Polarized FTIR spectra were used to measure the orientation of liquid crystal molecules in LB films with a tilt angle of 60° and 48° (corresponding to azobenzene moiety and hydrocarbon chain, respectively), which is well in accordance with the result of X-ray diffraction. The result from UV–vis absorption spectra revealed that the AB molecule formed H-aggregation in LB films.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 595-598"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00082-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81276401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
The process of immobilizing enzyme of glucose sensor based on diamond film 基于金刚石膜的葡萄糖传感器固定化酶的研究
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00106-0
Junguo Ran , Li Gou , Yan Liu , Changqiong Zheng , Fangqiong Tang
{"title":"The process of immobilizing enzyme of glucose sensor based on diamond film","authors":"Junguo Ran ,&nbsp;Li Gou ,&nbsp;Yan Liu ,&nbsp;Changqiong Zheng ,&nbsp;Fangqiong Tang","doi":"10.1016/S0968-5677(98)00106-0","DOIUrl":"10.1016/S0968-5677(98)00106-0","url":null,"abstract":"<div><p>Considering the poor adhesion of electrode to substrate, diamond film as a new kind of substrate material was used to fabricate a glucose sensor. Particularly, the immobilizing enzyme was investigated in detail. SEM and XPS were chosen to identify whether organic functional groups were grafted to electrode surface or not. The response characteristics of a diamond film glucose sensor show that this glucose sensor has good properties in the linear range 0.5–11.4<!--> <!-->mM<!--> <!-->l<sup>-1</sup>, sensitivity 4.0<!--> <!-->nA<!--> <!-->mM<sup>-1<!--> </sup>mm<sup>-2</sup> and peak reaction speed 2.5<!--> <!-->μA. The glucose sensor based on diamond film was a novel microchip glucose sensor with good potential.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 699-700"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00106-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84075949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Asymmetrically substituted ferrocene derivatives showing redox switching of optical properties 非对称取代二茂铁衍生物显示光学性质的氧化还原开关
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00055-8
X.D. Chai, Y.S. Jiang, W.S. Yang, D. Zhang, R. Lu, N. Lu, Y.W. Cao, T.J. Li
{"title":"Asymmetrically substituted ferrocene derivatives showing redox switching of optical properties","authors":"X.D. Chai,&nbsp;Y.S. Jiang,&nbsp;W.S. Yang,&nbsp;D. Zhang,&nbsp;R. Lu,&nbsp;N. Lu,&nbsp;Y.W. Cao,&nbsp;T.J. Li","doi":"10.1016/S0968-5677(98)00055-8","DOIUrl":"10.1016/S0968-5677(98)00055-8","url":null,"abstract":"<div><p>The electrochemical and spectroelectrochemical behaviors of three ferrocene derivatives, (<strong>1</strong>) (C<sub>18</sub>H<sub>37</sub>)<sub>2</sub>NC<sub>6</sub>H<sub>4</sub>CHCHFcCH<sub>2</sub>OH, (<strong>2</strong>) (C<sub>18</sub>H<sub>37</sub>)<sub>2</sub>NC<sub>6</sub>H<sub>4</sub>CHCHFcCHO, (<strong>3</strong>) (C<sub>18</sub>H<sub>37</sub>)<sub>2</sub>NC<sub>6</sub>H<sub>4</sub>CHCHFcCHC(CN)<sub>2</sub>, were studied and analyzed on basis of frontier orbital interactions. It was shown that all the three derivatives show two oxidation steps. The first oxidized states of <strong>1</strong> and <strong>2</strong> are stable and show strong LMCT (ligand-to-metal charge transfer) bands. This suggests that they may serve as redox switching of optical properties. In contrast, the first oxidized state of <strong>3</strong> becomes unstable due to strong electron-withdrawing effect of the acceptor substitute.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 479-483"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00055-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84417500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Surface plasmon resonance research on photoinduced switch properties of liquid crystalline azobenzene polymer Langmuir–Blodgett films 液晶偶氮苯聚合物Langmuir-Blodgett薄膜光致开关特性的表面等离子体共振研究
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00100-X
Jianhua Gu, Hua Lü, Lingyun Liu, Bingjie Liang, Yiwen Chen, Zuhong Lu
{"title":"Surface plasmon resonance research on photoinduced switch properties of liquid crystalline azobenzene polymer Langmuir–Blodgett films","authors":"Jianhua Gu,&nbsp;Hua Lü,&nbsp;Lingyun Liu,&nbsp;Bingjie Liang,&nbsp;Yiwen Chen,&nbsp;Zuhong Lu","doi":"10.1016/S0968-5677(98)00100-X","DOIUrl":"10.1016/S0968-5677(98)00100-X","url":null,"abstract":"<div><p>We report a novel phenomenon of photoisomerization-induced switch properties in liquid crystalline azo-benzene polymer poly{2-hydroetheyl methacrylate}-co-{6-[4-(S-2-methyl-1-butyloxycarbonylphenylazo) phenoxy]hexyl methacrylate} Langmuir–Blodgett (LB) monolayers. These monolayers were deposited on gold film and irradiated with UV (360<!--> <!-->nm) and blue (450<!--> <!-->nm) light. The switch properties were investigated by the surface plasmon resonance (SPR) technique. A method called photoinduced patterning was used for the fabrication of a model molecular device. It has been found that the photoinduced process of writing and erasing in such devices can be repeated for tens of cycles.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 675-678"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00100-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88204173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Micro-patterning of 3-aminopropyltrimethoxy- silane self-assembled monolayers with colloidal gold 用胶体金制备3-氨基丙基三甲氧基硅烷自组装单分子膜
Supramolecular Science Pub Date : 1998-10-01 DOI: 10.1016/S0968-5677(98)00108-4
Junfu Liu , Lingang Zhang , Ning Gu , Qingyue Hong , Jiyun Ren , Yanpeng Wu , Pansong Mao , Deying Chen , Zuhong Lu
{"title":"Micro-patterning of 3-aminopropyltrimethoxy- silane self-assembled monolayers with colloidal gold","authors":"Junfu Liu ,&nbsp;Lingang Zhang ,&nbsp;Ning Gu ,&nbsp;Qingyue Hong ,&nbsp;Jiyun Ren ,&nbsp;Yanpeng Wu ,&nbsp;Pansong Mao ,&nbsp;Deying Chen ,&nbsp;Zuhong Lu","doi":"10.1016/S0968-5677(98)00108-4","DOIUrl":"10.1016/S0968-5677(98)00108-4","url":null,"abstract":"<div><p>This paper provides a new method to the micro-patterning of 3-aminopropyl-trimethoxysilane (ATS) self-assembled monolayers by colloidal Au. Photolithographing of ATS self-assembled monolayers on SiO<sub>2</sub>-coated Si substrates and subsequent assembly of colloidal Au to the amino terminal groups in the unirradiated regions lead to the formation of Au microstructures. As revealed by scanning electron microscopy, the colloidal Au closely replicates the mask patterns on the unirradiated regions. The present approach may be applicable to fabrication of microelectronic circuits and microbiosensors.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 5","pages":"Pages 705-708"},"PeriodicalIF":0.0,"publicationDate":"1998-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00108-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86803736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
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