Results 11 to 20 of about 87,831 (289)

Nano-assembled thin film gas sensors. 1. Ammonia detection by a porphyrin-based multilayer film. [PDF]

open access: yes, 2006
A thin film of porphyrin deposited by the layer-by-layer method is employed as the active element for an optical sensor. The usefulness of this film technology and the resulting nanoscale matrix for the detection of volatile organic compounds (VOCs ...
Takahara, Naoki   +4 more
core   +7 more sources

Langmuir-Blodgett films of porphyrins and phthalocyanines [PDF]

open access: yes, 2002
Phthalocyanines and porphyrins have been studied for many years as bulk, thick and thin films. Their use in Langmuir and Langmuir-Blodgett films is governed their peripheral substituents.
Portus, Dan
core   +7 more sources

Urinary porphyrin excretion in hepatitis C infection [PDF]

open access: yes, 1999
A high prevalence of hepatitis C virus infection in porphyria cutanea tarda in some populations suggests a close link between viral hepatitis and alteration of porphyrin metabolism.
Jacob, Karl   +2 more
core   +1 more source

Translational and rotational motions of albumin sensed by a non-covalent associated porphyrin under physiological and acidic conditions: a fluorescence correlation spectroscopy and time resolved anisotropy study. [PDF]

open access: yes, 2008
The interaction between a free-base, anionic water-soluble porphyrin, TSPP, and the drug carrier protein, bovine serum albumin (BSA) has been studied by time-resolved fluorescence anisotropy (TRFA) and fluorescence correlation spectroscopy (FCS) at two ...
Costa, S.M.   +4 more
core   +1 more source

Dye-sensitized solar cells with 13% efficiency achieved through the molecular engineering of porphyrin sensitizers [PDF]

open access: yes, 2014
Dye-sensitized solar cells have gained widespread attention in recent years because of their low production costs, ease of fabrication and tunable optical properties, such as colour and transparency. Here, we report a molecularly engineered porphyrin dye,
Peng Gao   +24 more
core   +2 more sources

Porphyrins at interfaces

open access: yesNature Chemistry, 2015
Porphyrins and other tetrapyrrole macrocycles possess an impressive variety of functional properties that have been exploited in natural and artificial systems. Different metal centres incorporated within the tetradentate ligand are key for achieving and regulating vital processes, including reversible axial ligation of adducts, electron transfer ...
Willi Auwärter   +3 more
openaire   +3 more sources

Proof of concept for molecular velcro based on the attractive interaction between porphyrin and pyridine containing copolymers

open access: yeseXPRESS Polymer Letters, 2018
In this short communication, we investigated the synthesis and mixing of porphyrin and pyridine functionalized copolymers as a proof of concept for a velcro-like interaction.
M. Sievers   +3 more
doaj   +1 more source

Synthesis of Fe(II)/Co(II)-Fused Triphenyl Porphyrin Dimer as Candidate for Oxygen Reduction Reaction Catalyst

open access: yesIndonesian Journal of Chemistry, 2021
This paper reports the synthesis of Fe(II)/Co(II) fused triphenyl porphyrin dimers as candidate of hybrid organic metal electrocatalyst. The synthesis was conducted in five-step reactions using the starting materials pyrrole and benzaldehyde.
Atmanto Heru Wibowo   +6 more
doaj   +1 more source

Porphyrin‐Based Porous Materials for Antibacterial Applications [PDF]

open access: yesAdvanced science
Porphyrin‐based porous materials have excellent photophysical properties and tunable structures for high‐efficiency antibacterial therapy. This review comprehensively discusses the structural design strategies and synthetic pathways of the four main types of porphyrin‐based porous materials, summarizes their cross‐domain antimicrobial applications, and
Liang X, Li X, Xiong Y, Wang X, Yang Y.
europepmc   +2 more sources

Porphyrin Wheels [PDF]

open access: yesJournal of the American Chemical Society, 1996
A simple method to prepare porphyrin 'wheels' on a micrometer scale is described. It is possible to arrange several types of porphyrin derivatives, including Protoporphyrin IX and Chlorophyll-a, in the form of rings using this method. A mechanism for the formation of these types of assemblies is proposed that is based on the generation of '2D-gas ...
Schenning, A.P.H.J   +4 more
openaire   +2 more sources

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