دورية أكاديمية
Novel nanohybrids based on supramolecular assemblies of meso-tetrakis-(4-sulfonatophenyl) porphyrin J-aggregates and amine-functionalized carbon nanotubes
| العنوان: | Novel nanohybrids based on supramolecular assemblies of meso-tetrakis-(4-sulfonatophenyl) porphyrin J-aggregates and amine-functionalized carbon nanotubes |
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| المؤلفون: | Trapani M., Mazzaglia A., Piperno A., Cordaro A., Zagami R., Castriciano M. A., Romeo A., Scolaro L. M. |
| المساهمون: | Trapani, M., Mazzaglia, A., Piperno, A., Cordaro, A., Zagami, R., Castriciano, M. A., Romeo, A., Scolaro, L. M. |
| بيانات النشر: | Multidisciplinary Digital Publishing Institute |
| سنة النشر: | 2020 |
| المجموعة: | Università degli Studi di Messina: IRIS |
| مصطلحات موضوعية: | Carbon nanotubes, J-aggregates, Nanohybrids, Porphyrin |
| الوصف: | The ability of multiwalled carbon nanotubes (MWCNTs) covalently functionalized with polyamine chains of different length (ethylenediamine, EDA and tetraethylenepentamine, EPA) to induce the J-aggregation of meso-tetrakis(4-sulfonatophenyl)porphyrin (TPPS) was investigated in different experimental conditions. Under mild acidic conditions, protonated amino groups allow for the assembly by electrostatic interaction with the diacid form of TPPS, leading to hybrid nanomaterials. The presence of only one pendant amino group for a chain in EDA does not lead to any aggregation, whereas EPA (with four amine groups for chain) is effective in inducing J-aggregation using different mixing protocols. These nanohybrids have been characterized through UV/Vis extinction, fluorescence emission, resonance light scattering, and circular dichroism spectroscopy. Their morphology and chemical composition have been elucidated through transmission electron microscopy (TEM) and scanning transmission electron microscopy (STEM). TEM and STEM analysis evidence single or bundles of MWCNTs in contact with TPPS J-aggregates nanotubes. The nanohybrids are quite stable for days, even in aqueous solutions mimicking physiological medium (NaCl 0.15 M). This property, together with their peculiar optical features in the therapeutic window of visible spectrum, make them potentially useful for biomedical applications. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | STAMPA |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/pmid/32252418; info:eu-repo/semantics/altIdentifier/wos/WOS:000539577200072; volume:10; issue:4 Article Number 669; firstpage:1; lastpage:682; numberofpages:14; journal:NANOMATERIALS; http://hdl.handle.net/11570/3164127Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85083826355; https://www.mdpi.com/2079-4991/10/4/669Test |
| DOI: | 10.3390/nano10040669 |
| الإتاحة: | https://doi.org/10.3390/nano10040669Test http://hdl.handle.net/11570/3164127Test https://www.mdpi.com/2079-4991/10/4/669Test |
| حقوق: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.FB7618DF |
| قاعدة البيانات: | BASE |
| DOI: | 10.3390/nano10040669 |
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