Investigation of the photophysical and eletrochemical properties of a free base tetrapyridyl porphyrin with meso carbon linked ruthenium(II) groups

Sampaio, Renato N.; Silva, M.M.; Batista, A.A.; Neto, N.M. Barbosa

doi:10.1016/j.jphotochem.2015.09.014

Cited by 16 publications

(12 citation statements)

References 57 publications

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“…Although TA measurement of [Fe-TPyP] is similar to that of [TPyP],i ts hows enhanced bleaching of Qb ands as well as T 1 -T n absorption band (Supporting Information, Figures S28 and S29). [38] These data show the electron transfer from Fe-center to porphyrin as supported by the TD-DFT calculations (Figure 2; Supporting Information, Figure S30). On the other hand, decay trace of 430 nm bleach signal for [Fe-TPyP] exhibits alonger lifetime (from pumped state to ground state) than that of [TPyP], which is required for efficient photocatalytic process (Supporting Information, Table S7 and Figure S31).…”

Section: Angewandte Chemiesupporting

confidence: 52%

A Noble‐Metal‐Free Heterogeneous Photosensitizer‐Relay Catalyst Triad That Catalyzes Water Oxidation under Visible Light

et al. 2018

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Section: Angewandte Chemiesupporting

confidence: 52%

A Noble‐Metal‐Free Heterogeneous Photosensitizer‐Relay Catalyst Triad That Catalyzes Water Oxidation under Visible Light

et al. 2018

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“…Metal organic sensitizer is a metal complex, such as zinc-based porphyrin [117], ruthenium-based porphyrin [118], ruthenium-based pyridine [119] and the like. Among metal organic dyes, ruthenium-based-dye family is a standard sensitizer and boosting performance of DSSCs due to their favorable electrochemical properties, highly stable oxidized states, wide absorption spectrum [120,121].…”

Section: Metal Organic Sensitizersmentioning

confidence: 99%

Engineering flexible dye-sensitized solar cells for portable electronics

Lei

et al. 2019

Solar Energy

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With growing demand for economic, eco-friendly, easy-manufacturing and renewable portable power source, flexible dye-sensitized solar cells (FDSSCs) exhibit a promising potential in the field of portable power sources. However, FDSSCs surfer from low conversion efficiency and poor stability, which hinder their applications. In this work, we have summarized recent development and challenges according to respective functions of their vital components (substrate, semiconductor film, sensitizer, electrolytes and counter electrode) as well as their effects on photoelectric conversion efficiency. Meanwhile, typical fabrication approaches have been analyzed for increasing the incident photon to current efficiency (IPCE). The approaches in rigid dye-sensitized solar cells (DSSCs) for improving performance are also introduced to provide the favorable direction for accelerating FDSSCs' application in field of potable power source.

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“…It is known in the literature that there are several types of endogenous PS responsible for anti-fungal effects, including various kinds of porphyrins and flavins, depending on the fungal species. The Soret bands of porphyrins are generally in the range of 400∼410nm [28]; while some types can reach 413∼416nm [29]. On the other hand, the Soret bands of flavins are usually at longer wavelengths.…”

Section: Discussionmentioning

confidence: 99%

Data Driven Modeling of the Reactive Oxygen Species Stimulated by Photon Energy in Light Therapies

Dong

Wang

2020

IEEE Access

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Light therapies can be used to treat fungal infections. A general mechanism is attributed to the generation of cytotoxic reactive oxygen species (ROS) due to light stimulation. The effectiveness of these therapies has been widely studied in the literature via conducting biological experiments, where fungi are exposed to light with various wavelengths and power. However, despite the large amount of work reporting the experimental results, few efforts have been given to build a mathematical model that describes the amount of generated ROS as a function of the photon energy and power of the stimulating light. The lack of such a model still hinders the optimization of the light doses. In this work, we propose a novel modeling method based on experimental data, so as to establish a mathematical relationship between the ROS concentration and the stimulating photon energy and light fluence (energy density). The anti-fungal experiments were performed on Candida albicans (C. albicans) using four LED light sources with different wavelengths ranging from 385nm to 450nm. Both the viability of the fungi and the ROS concentration therein were measured during the experiments. High fitting accuracy has been achieved by the model, which therefore demonstrates the effectiveness of the proposed modeling techniques. INDEX TERMS Biomedical engineering, data driven modeling, light-emitting diodes, light therapy, parameter estimation.

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Investigation of the photophysical and eletrochemical properties of a free base tetrapyridyl porphyrin with meso carbon linked ruthenium(II) groups

Cited by 16 publications

References 57 publications

A Noble‐Metal‐Free Heterogeneous Photosensitizer‐Relay Catalyst Triad That Catalyzes Water Oxidation under Visible Light

A Noble‐Metal‐Free Heterogeneous Photosensitizer‐Relay Catalyst Triad That Catalyzes Water Oxidation under Visible Light

Engineering flexible dye-sensitized solar cells for portable electronics

Data Driven Modeling of the Reactive Oxygen Species Stimulated by Photon Energy in Light Therapies

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