Design of oxygen sensing nanomaterial: synthesis, encapsulation of phenylacetylide substituted Pd(ii) and Pt(ii) meso-tetraphenylporphyrins into poly(1-trimethylsilyl-1-propyne) nanofibers and influence of silver nanoparticles

Abstract

Room temperature phosphorescent oxygen sensors have been designed by embedding symmetric palladium(ii) or platinum(ii) meso-tetraphenylporphyrins in poly(1-trimethylsilyl-1-propyne) in the form of nanofibers along with/without silver nanoparticles.

Novel Platinum-Porphyrin as Sensing Compound for Efficient Fluorescent and Electrochemical Detection of H2O2

“…It was proved that in the detection domain 1.05-3.9 × 10 −7 M H 2 O 2 (that is highly relevant for biological testing) the investigated porphyrin can act as fluorescent sensitive substance, with a high confidence coefficient of 99.7%. In comparison with other previous strategies [8,16,17], this fluorescent approach gave a 40 times lower detection limit of 0.3 × 10 −7 M, and the procedure is simpler, less expensive and less time consuming. The fluorimetric response is accurate and stable in the presence of several interfering mixtures of anions, cations and strongly oxidizing species frequently present in the targeted environments.…”

“…The following are available online at http://www.mdpi.com/2227-9040/8/2/29/s1, Figure S1: UV-vis spectra of Pt(II)-TAPP (the same concentration 3 × 10 −5 M) in different solvents: hexane (1); chlorobenzene (2); tetrahydrofuran (3); chloroform (4); dichloromethane (5); benzonitrile (6); dimethylformamide (7); dimethylsulfoxide (8). Effect of the solvent polarity on the intensity and position of the bands, Figure S2: Effect of the solvent polarity on the position and intensity of the bands in fluorescence spectra of Pt(II)-TAPP (the same concentration 3 × 10 −5 M), in: hexane (1); chlorobenzene (2); tetrahydrofuran (3); chloroform (4); dichloromethane (5); benzonitrile (6); dimethylformamide (7); dimethylsulfoxide (8).…”

“…The detection is based on the reversible fluorescence response of the Pt-porphyrin to different concentrations of dissolved O 2 in water. Based on the same method, other platinum fluorescent compound, Pt(II)-5-(3-aminophenyl)-10,15,20-tris-(p-tolyl)-porphyrin, incorporated in polyimide polymers was capable of detecting oxygen in concentrations up to 10% [7].Composite strips comprising Pt(II)-meso-tetrakis-(pentafluorophenyl)-porphyrin and cadmium telluride quantum dots were used for rapid colorimetric determination [8,9] of oxygen. High fluorescence quantum yield hybrid materials based on phenylacetylide fibers functionalized with platinum (II) meso-tetraphenylporphyrins were developed and showed improved sensitivity to O 2 , providing a detection limit of 7.5 ppm.…”

“…Composite strips comprising Pt(II)-meso-tetrakis-(pentafluorophenyl)-porphyrin and cadmium telluride quantum dots were used for rapid colorimetric determination [8,9] of oxygen. High fluorescence quantum yield hybrid materials based on phenylacetylide fibers functionalized with platinum (II) meso-tetraphenylporphyrins were developed and showed improved sensitivity to O 2 , providing a detection limit of 7.5 ppm.…”

Development of Highly Sensitive Metal-Free Tetraphenylporphyrin-Based Optical Oxygen Sensing Materials along with ILs and AgNPs

“…Recently, the researchers put forth that the addition of nano/micro-chemistry reagents such as AgNPs [8], AuNPs [9] and other additives like ionic liquids [10] bring superior features in the design of the sensor.…”