Study of phenylpyridyldiketopyrrolopyrrole interaction with hydrogen in gas and in acids

Salyk, Ota; Vyňuchal, Jan; Kratochvílová, Irena; Todorciuc, Tatiana; Pavluch, J.; Toman, Petr

doi:10.1002/pssa.200925535

Cited by 3 publications

(3 citation statements)

References 28 publications

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“…16). 29 Upon the interaction of the pyridyl units with protons, the conductivity of derivative 28 was significantly increased; however, the surface potential decreased, indicating its potential use as a H 2 sensor.…”

Section: Probes For Ph Carbon Dioxide and H 2 Gasmentioning

confidence: 99%

Diketopyrrolopyrrole: brilliant red pigment dye-based fluorescent probes and their applications

2015

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The development of fluorescent probes for the detection of biologically relevant species is a burgeoning topic in the field of supramolecular chemistry. A number of available dyes such as rhodamine, coumarin, fluorescein, and cyanine have been employed in the design and synthesis of new fluorescent probes. However, diketopyrrolopyrrole (DPP) and its derivatives have a distinguished role in supramolecular chemistry for the design of fluorescent dyes. DPP dyes offer distinctive advantages relative to other organic dyes, including high fluorescence quantum yields and good light and thermal stability. Significant advancements have been made in the development of new fluorescent probes based on DPP in recent years as a result of tireless research efforts by the chemistry scientific community. In this tutorial review, we highlight the recent progress in the development of DPP-based fluorescent probes for the period spanning 2009 to the present time and the applications of these probes to recognition of biologically relevant species including anions, cations, reactive oxygen species, thiols, gases and other miscellaneous applications. This review is targeted toward providing the readers with deeper understanding for the future design of DPP-based fluorogenic probes for chemical and biological applications.

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Section: Probes For Ph Carbon Dioxide and H 2 Gasmentioning

confidence: 99%

Diketopyrrolopyrrole: brilliant red pigment dye-based fluorescent probes and their applications

2015

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“…Such materials are increasingly being used in various fields of physics, chemistry and biology. The particle size is one of important characteristics, because it affects a large variety of physical, electrical and optical properties of materials [4][5][6][7][8]. Also, the particle size of photonic crystal medium could be important for a new quantumelectrodynamical effect described in [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

A new approach of recognition of ellipsoidal micro- and nanoparticles on AFM images and determination of their sizes

Akhmadeev

Салахов

2016

Meas. Sci. Technol.

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In this work we develop an approach of automatic recognition of ellipsoidal particles on the atomic force microscopy (AFM) image and determination of their size, which is based on image segmentation and the surface approximation by ellipsoids. In addition to the comparative simplicity and rapidity of processing, this method allows us to determine the size of particles, the surface of which is not completely visible on the image. The proposed method showed good results on simulated images including noisy ones. Using this algorithm the size distributions of silica particles on experimental AFM images have been determined.

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“…The goal of our project was to measure the characteristic size of particles in AFM images of phenylpyridyldiketopyrrolopyrrole (PPDP), a new organic semiconducting material for hydrogen sensors [2]. The deposited layers of PPDP consisted of ellipsoidal particles with approximately the same size; the size of particles reflects the quality of the sample.…”

Section: Introductionmentioning

confidence: 99%

Detection of elliptical particles in atomic force microscopy images

Sedlář

Zitová

Kopeček

et al. 2011

2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

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In this paper we describe a method for detection and measurement of elliptical particles in atomic force microscopy (AFM) images. AFM imaging is used in physics to scan surfaces; the measured heights are represented by pixel values. Each sample in our project consisted of elliptical particles of principally the same size; the size could be characterized by the average length and width of a number of salient particles. The method we proposed is based on segmentation of undamaged particles and their approximation by ellipses; the major and minor axes provide robust estimates of the lengths and widths of the particles, respectively. The method is robust to distortions typical of AFM images. Its performance was demonstrated on images of pyrroles and compared with manual detection. Results show that the automatic method could be used in place of the time-consuming manual detection.

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Study of phenylpyridyldiketopyrrolopyrrole interaction with hydrogen in gas and in acids

Cited by 3 publications

References 28 publications

Diketopyrrolopyrrole: brilliant red pigment dye-based fluorescent probes and their applications

Diketopyrrolopyrrole: brilliant red pigment dye-based fluorescent probes and their applications

A new approach of recognition of ellipsoidal micro- and nanoparticles on AFM images and determination of their sizes

Detection of elliptical particles in atomic force microscopy images

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