Poly(methyl methacrylate)-Supported Polydiacetylene Films: Unique Chromatic Transitions and Molecular Sensing

被引：71

作者：

Kootery, Kaviya Parambath ^{[1
]}

Jiang, Hao ^{[1
]}

Kolusheva, Sofiya ^{[2
]}

Vinod, T. P. ^{[1
]}

Ritenberg, Margarita ^{[1
]}

Zeiri, Leila ^{[2
]}

Volinsky, Roman ^{[3
]}

Malferrari, Danilo ^{[4
]}

Galletti, Paola ^{[4
,5
]}

Tagliavini, Emilio ^{[4
,5
]}

Jelinek, Raz ^{[1
,2
]}

机构：

[1] Ben Gurion Univ Negev, Dept Chem, IL-84105 Beer Sheva, Israel

[2] Ben Gurion Univ Negev, Ilse Katz Inst Nanoscale Sci & Technol, IL-84105 Beer Sheva, Israel

[3] Aalto Univ, Dept Biomed Engn & Computat Sci, Helsinki, Finland

[4] Univ Bologna, Interdipartimental Ctr Ind Res CIRI Energy & Envi, I-48123 Ravenna, Italy

[5] Univ Bologna, Dipartimento Chim G Ciamician, I-40126 Bologna, Italy

来源：

ACS APPLIED MATERIALS & INTERFACES | 2014年 / 6卷 / 11期

关键词：

polydiacetylene; colorimetric sensors; spin coating; PMMA; thin films; IONIC LIQUIDS; LIPID/POLYDIACETYLENE VESICLES; SOLID-STATE; POLYMERIZATION; THERMOCHROMISM; LEVOGLUCOSAN; DIACETYLENE; AZOBENZENE; SENSORS;

D O I：

10.1021/am501414z

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Polydiacetylenes (PDAs) constitute a family of conjugated polymers exhibiting unique colorimetric and fluorescence transitions, and have attracted significant interest as chemo- and biosensing materials. We spin-coated PDA films upon poly(methyl methacrylate) (PMMA), and investigated the photophysical properties and sensing applications of the new PDA configuration. Specifically, the as-polymerized blue PDA layer underwent distinct transformations to purple, red, and yellow phases, which could be quantified through conventional color scanning combined with application of image analysis algorithms. Furthermore, we recorded a reversible red-purple PDA transition that was induced by ultraviolet irradiation, a phenomenon that had not been reported previously in PDA film systems. We show that distinct color and fluorescence transitions were induced in the PMMA-supported PDA films by amphiphilic substances-surfactants and ionic liquids and that the chromatic transformations were correlated to the analyte structures and properties. Overall, this study presents a new chromatic PDA film system in which noncovalent interactions between the PMMA substrate and spin-coated PDA give rise to distinct chromatic properties and molecular sensing capabilities.

引用

页码：8613 / 8620

页数：8

共 47 条

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