pH-Controlled Self-Assembling of meso-Tetrakis(4-sulphonatophenyl)porphyrin-Chitosan Complexes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F09%3A00021836" target="_blank" >RIV/60461373:22340/09:00021836 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

pH-Controlled Self-Assembling of meso-Tetrakis(4-sulphonatophenyl)porphyrin-Chitosan Complexes

Popis výsledku v původním jazyce

Solid meso-tetrakis(4-sulphonatophenyl)porphyrin (TPPS4) ? chitosan supramolecular complexes were prepared by addition of porphyrin to an aqueous solution of chitosan at different pH. The precipitates obtained were assigned as 1 (pH 6.8) and 2 (pH 2.5) and characterized by spectroscopic methods (Vis-NIR, FT-IR, Raman and NMR), thermal (TG/DTG and DSC) and image analysis (LM, SEM and AFM). Spectroscopic investigation confirmed the presence of TPPS4 and chitosan in both products and that the porphyrin ishighly self-associated. H-type (stacked) of TPPS4 aggregation was proposed for 1 and J-type (tilted) for 2. Thermal analysis revealed different pyrolysis routes of the complexes depending on their structural diversity. Light microscopic images indicatedfibrous and lamellar microstructures, respectively for 1 and 2. SEM and AFM images showed that both complexes consist of disk-like nanostructures; the size and interconnection of the discs is different for 1 and 2. Based on structural inf

Název v anglickém jazyce

pH-Controlled Self-Assembling of meso-Tetrakis(4-sulphonatophenyl)porphyrin-Chitosan Complexes

Popis výsledku anglicky

Solid meso-tetrakis(4-sulphonatophenyl)porphyrin (TPPS4) ? chitosan supramolecular complexes were prepared by addition of porphyrin to an aqueous solution of chitosan at different pH. The precipitates obtained were assigned as 1 (pH 6.8) and 2 (pH 2.5) and characterized by spectroscopic methods (Vis-NIR, FT-IR, Raman and NMR), thermal (TG/DTG and DSC) and image analysis (LM, SEM and AFM). Spectroscopic investigation confirmed the presence of TPPS4 and chitosan in both products and that the porphyrin ishighly self-associated. H-type (stacked) of TPPS4 aggregation was proposed for 1 and J-type (tilted) for 2. Thermal analysis revealed different pyrolysis routes of the complexes depending on their structural diversity. Light microscopic images indicatedfibrous and lamellar microstructures, respectively for 1 and 2. SEM and AFM images showed that both complexes consist of disk-like nanostructures; the size and interconnection of the discs is different for 1 and 2. Based on structural inf

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Biomacromolecules

ISSN

1525-7797

e-ISSN

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Svazek periodika

10

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

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Kód UT WoS článku

000265914200007

EID výsledku v databázi Scopus

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