Bodipy Based Fluorescent Materials in Cellulose Matrices: Synthesis, Spectral Properties and Vapochromic Fluorescent Recognition of Alcohols and Acetone

Abstract

This paper highlights advances made using the 4-bora-3a,4a-diaza-s-indacene (BODIPY) as a fluorophore in design and application of fluorescent sensors for microenvironment polarity. Sections of the paper cover broad analysis of a range of fluorescent indicators immobilized in ethyl-and methyl cellulose matrices. The present study demonstrates that BODIPYbased fluorescent materials could be successfully utilized for ratiometric detection of ethanol and acetone in gas phase. The achieved limit of detection value equals 0.02 mg/ml for acetone and 0.08 mg/ml for ethanol, whereas obtained sensoric materials are reusable without regeneration required.

On the Use of Polymer-Based Composites for the Creation of Optical Sensors: A Review

“…There are many polar substituents that contribute to the formation of dipole interactions with the corresponding substrates. Such matrices include: among the organic ones most popular are oligo-polysaccharides [ 46 , 47 ], cellulose [ 48 , 49 , 50 , 51 ], polymethylmethacrylate (PMMA) [ 52 , 53 , 54 , 55 ], polyvinyl chloride (PVC) [ 11 , 56 ]; among inorganic ones most popular are silica and other polymeric oxides obtained by sol-gel synthesis [ 57 , 58 , 59 , 60 , 61 , 62 ]. On the other hand, the luminophore must have the following groups (one or several): H-, hydroxo-, amino-, nitro-, sulpho-, mercapto- and groups comprising from atoms with an unsplit electron pair and capable of forming a donor-acceptor bond; phenyl and other cyclically conjugated molecules to form π-π stacking.…”

“…PMMA matrices with BODIPY can be used to produce sensors for polarity reversal of the environment [ 62 ]. Ethyl cellulose matrices with BODIPY or bis-dipyrrin complexes can be used for the some gases detection in micro quantities in air [ 48 , 49 , 63 ]. It should also be noted that sorption increases the threshold for aggregation, i.e., more dye can be placed in the matrix without forming aggregates [ 64 ].…”

Chemistry of Liquid Systems and Functional Materials Based on Coordination Compounds of Linear and Cyclic Polypyrroles

“…На схеме 3 представлены синтезированные нами флуоресцентные красители на основе BODIPY, которые можно разделить на четыре группы в зависимости от особенностей их химического строения: борфторидные комплексы дипиррина с заместителями различной природы в α-, β-, β'-и/или μ-положениях дипирринового остова BODIPY1-20 [48][49][50][51][52][53][54][55][56][57][58][59][60][61][62][63], их димерные и тримерные производные BODIPY21-24 [64], а также соединение с расширенной π-системой BODIPY25 [65], и кроме того, аза-замещенные борфторидные комплексы дипиррина с заместителями различной природы в α-, β-и/или β'-положениях дипирринового остова аза-BODIPY26-30 [60,61,66,67].…”

“…Было показано, что с увеличением длины углеводородной цепи в спирте амплитуда тушения снижается до пренебрежимо малой. Сенсорный отклик полученных вапохромных материалов также полностью обратим [57].…”