1
|
Cacioppo M, De Zorzi R, Syrgiannis Z, Bellich B, Bertoncin P, Jou IA, Brady JW, Rizzo R, Cescutti P. Microscopy and modelling investigations on the morphology of the biofilm exopolysaccharide produced by Burkholderia multivorans strain C1576. Int J Biol Macromol 2023; 253:127294. [PMID: 37813217 PMCID: PMC10872726 DOI: 10.1016/j.ijbiomac.2023.127294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/26/2023] [Accepted: 10/05/2023] [Indexed: 10/11/2023]
Abstract
Bacteria form very often biofilms where they embed in a self-synthesized matrix exhibiting a gel-like appearance. Matrices offer several advantages, including defence against external threats and the easiness of intercellular communication. In infections, biofilm formation enhances bacteria resistance against antimicrobials, causing serious clinical problems for patients' treatments. Biofilm matrices are composed of proteins, extracellular DNA, and polysaccharides, the latter being the major responsible for matrix architecture. The repeating unit of the biofilm polysaccharide synthesized by Burkholderia multivorans strain C1576 contains two mannoses and two sequentially linked rhamnoses, one of them 50 % methylated on C-3. Rhamnose, a 6-deoxysugar, has lower polarity than other common monosaccharides and its methylation further reduces polarity. This suggests a possible role of this polysaccharide in the biofilm matrix; in fact, computer modelling and atomic force microscopy studies evidenced intra- and inter-molecular non-polar interactions both within polysaccharides and with aliphatic molecules. In this paper, the polysaccharide three-dimensional morphology was investigated using atomic force microscopy in both solid and solution states. Independent evidence of the polymer conformation was obtained by transmission electron microscopy which confirmed the formation of globular compact structures. Finally, data from computer dynamic simulations were used to model the three-dimensional structure.
Collapse
Affiliation(s)
- Michele Cacioppo
- Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, University of Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Rita De Zorzi
- Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, University of Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Zois Syrgiannis
- Simpson Querrey Institute, Northwestern University, Chicago, IL 60611, USA; Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Barbara Bellich
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Paolo Bertoncin
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Ining A Jou
- Food Science Department, Cornell University, 101A Stocking Hall, Ithaca, NY 14853, USA
| | - John W Brady
- Food Science Department, Cornell University, 101A Stocking Hall, Ithaca, NY 14853, USA
| | - Roberto Rizzo
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Paola Cescutti
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy.
| |
Collapse
|
2
|
Mattinzoli D, Cacioppo M, Ikehata M, Armelloni S, Alfieri CM, Castellano G, Barilani M, Arcudi F, Messa P, Prato M. Carbon dots conjugated to SN38 for improved colorectal anticancer therapy. Mater Today Bio 2022; 16:100286. [PMID: 36186846 PMCID: PMC9523396 DOI: 10.1016/j.mtbio.2022.100286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 04/30/2022] [Accepted: 05/09/2022] [Indexed: 11/18/2022] Open
Abstract
Irinotecan (CTP-11) is one of the standard therapies for colorectal cancer (CRC). CTP-11 is enzymatically converted to the hydrophobic 7-ethyl-10-hydroxycamptothecin (SN38), a one hundred-fold more active metabolite. Conjugation of hydrophobic anticancer drugs to nanomaterials is a strategy to improve their solubility, efficacy, and selectivity. Carbon dots (CDs) have garnered interest for their small sizes (<10 nm), low toxicity, high water solubility, and bright fluorescence. This paper describes the use of CDs to improve drug vehiculation, stability, and chemotherapeutic efficiency of SN38 through a direct intracellular uptake in CRC. The covalent conjugation of SN38 to CDs via a carbamate bond provides a CD-SN38 hybrid material for slow, sustained, and pH-responsive drug release. CD-SN38 successfully penetrates the CRC cells with a release in the nucleus affecting first the cell cycle and then the cytoskeleton. Moreover, CD-SN38 leads to a deregulation of the extracellular matrix (ECM), one of the major components of the cancer niche considered a possible target therapy for reducing the cancer progression. This work shows the combined therapeutic and imaging potential of CD-based hybrid materials for the treatment of CRC. Future efforts for targeted therapy of chronic diseases characterized by altered ECM deposition, such as chronic kidney disease and chronic allograft nephropathy in kidney transplant patients are envisaged.
Collapse
Affiliation(s)
- Deborah Mattinzoli
- Renal Research Laboratory, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Via Pace 9, Milan, 20122, Italy
- Corresponding author.
| | - Michele Cacioppo
- Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, University of Trieste, Via Licio Giorgieri 1, Trieste, 34127, Italy
- Center for Cooperative Research in Biomaterials (CIC BiomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 182, Donostia-San Sebastián, 20014, Spain
| | - Masami Ikehata
- Renal Research Laboratory, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Via Pace 9, Milan, 20122, Italy
| | - Silvia Armelloni
- Renal Research Laboratory, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Via Pace 9, Milan, 20122, Italy
| | - Carlo Maria Alfieri
- Unit of Nephrology, Dialysis and Renal Transplant Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Via Della Commenda 15, Milan, 20122, Italy
- University of Study of Milan, Via Festa Del Perdono 7, 20122, Milan, Italy
- Corresponding author. University of Study of Milan, via Festa Del Perdono 7, 20122, Milan, Italy.
| | - Giuseppe Castellano
- Unit of Nephrology, Dialysis and Renal Transplant Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Via Della Commenda 15, Milan, 20122, Italy
- University of Study of Milan, Via Festa Del Perdono 7, 20122, Milan, Italy
| | - Mario Barilani
- EPIGET LAB, Department of Clinical Sciences and Community Health, University of Milan, Milan, 20122, Italy
- Department of Transfusion Medicine and Hematology, Cell Factory, Regenerative Medicine Laboratory, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, 20122, Italy
| | - Francesca Arcudi
- Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, University of Trieste, Via Licio Giorgieri 1, Trieste, 34127, Italy
- Corresponding author.
| | - Piergiorgio Messa
- Unit of Nephrology, Dialysis and Renal Transplant Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Via Della Commenda 15, Milan, 20122, Italy
- University of Study of Milan, Via Festa Del Perdono 7, 20122, Milan, Italy
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, University of Trieste, Via Licio Giorgieri 1, Trieste, 34127, Italy
- Center for Cooperative Research in Biomaterials (CIC BiomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 182, Donostia-San Sebastián, 20014, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, 48013, Spain
- Corresponding author. Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, University of Trieste, via Licio Giorgieri 1, Trieste, 34127, Italy.
| |
Collapse
|
3
|
Ðorđević L, Arcudi F, Cacioppo M, Prato M. A multifunctional chemical toolbox to engineer carbon dots for biomedical and energy applications. Nat Nanotechnol 2022; 17:112-130. [PMID: 35173327 DOI: 10.1038/s41565-021-01051-7] [Citation(s) in RCA: 212] [Impact Index Per Article: 106.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 11/09/2021] [Indexed: 06/14/2023]
Abstract
Photoluminescent carbon nanoparticles, or carbon dots, are an emerging class of materials that has recently attracted considerable attention for biomedical and energy applications. They are defined by characteristic sizes of <10 nm, a carbon-based core and the possibility to add various functional groups at their surface for targeted applications. These nanomaterials possess many interesting physicochemical and optical properties, which include tunable light emission, dispersibility and low toxicity. In this Review, we categorize how chemical tools impact the properties of carbon dots. We look for pre- and postsynthetic approaches for the preparation of carbon dots and their derivatives or composites. We then showcase examples to correlate structure, composition and function and use them to discuss the future development of this class of nanomaterials.
Collapse
Affiliation(s)
- Luka Ðorđević
- Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, University of Trieste, Trieste, Italy.
- Department of Chemistry, Northwestern University, Evanston, IL, USA.
| | - Francesca Arcudi
- Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, University of Trieste, Trieste, Italy.
- Department of Chemistry, Northwestern University, Evanston, IL, USA.
| | - Michele Cacioppo
- Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, University of Trieste, Trieste, Italy
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia San Sebastián, Spain
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, University of Trieste, Trieste, Italy.
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia San Sebastián, Spain.
- Basque Foundation for Science, Ikerbasque, Bilbao, Spain.
| |
Collapse
|
4
|
Yan H, Cacioppo M, Megahed S, Arcudi F, Đorđević L, Zhu D, Schulz F, Prato M, Parak WJ, Feliu N. Influence of the chirality of carbon nanodots on their interaction with proteins and cells. Nat Commun 2021; 12:7208. [PMID: 34893594 PMCID: PMC8664908 DOI: 10.1038/s41467-021-27406-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 11/11/2021] [Indexed: 12/26/2022] Open
Abstract
Carbon nanodots with opposite chirality possess the same major physicochemical properties such as optical features, hydrodynamic diameter, and colloidal stability. Here, a detailed analysis about the comparison of the concentration of both carbon nanodots is carried out, putting a threshold to when differences in biological behavior may be related to chirality and may exclude effects based merely on differences in exposure concentrations due to uncertainties in concentration determination. The present study approaches this comparative analysis evaluating two basic biological phenomena, the protein adsorption and cell internalization. We find how a meticulous concentration error estimation enables the evaluation of the differences in biological effects related to chirality.
Collapse
Affiliation(s)
- Huijie Yan
- Fachbereich Physik, Center for Hybrid Nanostructures (CHyN), Universitat Hamburg, 22607, Hamburg, Germany
| | - Michele Cacioppo
- Fachbereich Physik, Center for Hybrid Nanostructures (CHyN), Universitat Hamburg, 22607, Hamburg, Germany
- Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, University of Trieste, Via Licio Giorgieri 1, 34127, Trieste, Italy
| | - Saad Megahed
- Fachbereich Physik, Center for Hybrid Nanostructures (CHyN), Universitat Hamburg, 22607, Hamburg, Germany
- Physics Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | - Francesca Arcudi
- Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, University of Trieste, Via Licio Giorgieri 1, 34127, Trieste, Italy
| | - Luka Đorđević
- Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, University of Trieste, Via Licio Giorgieri 1, 34127, Trieste, Italy
| | - Dingcheng Zhu
- Fachbereich Physik, Center for Hybrid Nanostructures (CHyN), Universitat Hamburg, 22607, Hamburg, Germany
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, PR China
| | - Florian Schulz
- Fachbereich Physik, Center for Hybrid Nanostructures (CHyN), Universitat Hamburg, 22607, Hamburg, Germany
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, University of Trieste, Via Licio Giorgieri 1, 34127, Trieste, Italy.
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 182, 20014, Donostia San Sebastian, Spain.
- Basque Foundation for Science, Ikerbasque, 48013, Bilbao, Spain.
| | - Wolfgang J Parak
- Fachbereich Physik, Center for Hybrid Nanostructures (CHyN), Universitat Hamburg, 22607, Hamburg, Germany.
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 182, 20014, Donostia San Sebastian, Spain.
| | - Neus Feliu
- Fachbereich Physik, Center for Hybrid Nanostructures (CHyN), Universitat Hamburg, 22607, Hamburg, Germany.
- Fraunhofer Center for Applied Nanotechnology (CAN), 20146, Hamburg, Germany.
| |
Collapse
|
5
|
Arcudi F, Ðorđević L, Rebeccani S, Cacioppo M, Zanut A, Valenti G, Paolucci F, Prato M. Lighting up the Electrochemiluminescence of Carbon Dots through Pre- and Post-Synthetic Design. Adv Sci (Weinh) 2021; 8:2100125. [PMID: 34258161 PMCID: PMC8261489 DOI: 10.1002/advs.202100125] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/28/2021] [Indexed: 05/19/2023]
Abstract
Carbon dots (CDs), defined by their size of less than 10 nm, are a class of photoluminescent (PL) and electrochemiluminescent (ECL) nanomaterials that include a variety of carbon-based nanoparticles. However, the control of their properties, especially ECL, remains elusive and afflicted by a series of problems. Here, the authors report CDs that display ECL in water via coreactant ECL, which is the dominant mechanism in biosensing applications. They take advantage of a multicomponent bottom-up approach for preparing and studying the luminescence properties of CDs doped with a dye acting as PL and ECL probe. The dependence of luminescence properties on the surface chemistry is further reported, by investigating the PL and ECL response of CDs with surfaces rich in primary, methylated, or propylated amino groups. While precursors that contribute to the core characterize the PL emission, the surface states influence the efficiency of the excitation-dependent PL emission. The ECL emission is influenced by surface states from the organic shell, but states of the core strongly interact with the surface, influencing the ECL efficiency. These findings offer a framework of pre- and post-synthetic design strategies to improve ECL emission properties, opening new opportunities for exploring biosensing applications of CDs.
Collapse
Affiliation(s)
- Francesca Arcudi
- Department of Chemical and Pharmaceutical SciencesINSTM UdR TriesteUniversity of TriesteVia Licio Giorgieri 1Trieste34127Italy
- Present address:
Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIL60208USA
| | - Luka Ðorđević
- Department of Chemical and Pharmaceutical SciencesINSTM UdR TriesteUniversity of TriesteVia Licio Giorgieri 1Trieste34127Italy
- Present address:
Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIL60208USA
| | - Sara Rebeccani
- Department of Chemistry “Giacomo Ciamician”University of BolognaVia Selmi 2Bologna40126Italy
| | - Michele Cacioppo
- Department of Chemical and Pharmaceutical SciencesINSTM UdR TriesteUniversity of TriesteVia Licio Giorgieri 1Trieste34127Italy
- Carbon Bionanotechnology GroupCenter for Cooperative Research in Biomaterials (CIC biomaGUNE)Basque Research and Technology Alliance (BRTA)Paseo de Miramón 182Donostia‐San Sebastián20014Spain
| | - Alessandra Zanut
- Department of Chemistry “Giacomo Ciamician”University of BolognaVia Selmi 2Bologna40126Italy
- Present address:
Tandon School of EngineeringNew York UniversityBrooklynNY11201USA
| | - Giovanni Valenti
- Department of Chemistry “Giacomo Ciamician”University of BolognaVia Selmi 2Bologna40126Italy
| | - Francesco Paolucci
- Department of Chemistry “Giacomo Ciamician”University of BolognaVia Selmi 2Bologna40126Italy
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical SciencesINSTM UdR TriesteUniversity of TriesteVia Licio Giorgieri 1Trieste34127Italy
- Carbon Bionanotechnology GroupCenter for Cooperative Research in Biomaterials (CIC biomaGUNE)Basque Research and Technology Alliance (BRTA)Paseo de Miramón 182Donostia‐San Sebastián20014Spain
- IkerbasqueBasque Foundation for ScienceBilbao48013Spain
| |
Collapse
|
6
|
Cacioppo M, Scharl T, Đorđević L, Cadranel A, Arcudi F, Guldi DM, Prato M. Symmetry-Breaking Charge-Transfer Chromophore Interactions Supported by Carbon Nanodots. Angew Chem Int Ed Engl 2020; 59:12779-12784. [PMID: 32282973 PMCID: PMC7496469 DOI: 10.1002/anie.202004638] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Indexed: 11/10/2022]
Abstract
Carbon dots (CDs) and their derivatives are useful platforms for studying electron-donor/acceptor interactions and dynamics therein. Herein, we couple amorphous CDs with phthalocyanines (Pcs) that act as electron donors with a large extended π-surface and intense absorption across the visible range of the solar spectrum. Investigations of the intercomponent interactions by means of steady-state and pump-probe transient absorption spectroscopy reveal symmetry-breaking charge transfer/separation and recombination dynamics within pairs of phthalocyanines. The CDs facilitate the electronic interactions between the phthalocyanines. Thus, our findings suggest that CDs could be used to support electronic couplings in multichromophoric systems and further increase their applicability in organic electronics, photonics, and artificial photosynthesis.
Collapse
Affiliation(s)
- Michele Cacioppo
- Department of Chemical and Pharmaceutical SciencesUniversity of Trieste, and INSTM, unit of TriesteVia Licio Giorgieri 134127TriesteItaly
| | - Tobias Scharl
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular MaterialsFriedrich-Alexander Universität Erlangen-NürnbergEgerlandstrasse 391058ErlangenGermany
| | - Luka Đorđević
- Department of Chemical and Pharmaceutical SciencesUniversity of Trieste, and INSTM, unit of TriesteVia Licio Giorgieri 134127TriesteItaly
- Present address: Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIL60208USA
- Present address: Simpson Querrey InstituteNorthwestern University303 E. SuperiorChicagoIL60611USA
| | - Alejandro Cadranel
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular MaterialsFriedrich-Alexander Universität Erlangen-NürnbergEgerlandstrasse 391058ErlangenGermany
- Universidad de Buenos AiresFacultad de Ciencias Exactas y NaturalesDepartamento de Química Inorgánica, Analítica y Química FísicaPabellón 2, Ciudad UniversitariaC1428EHABuenos AiresArgentina
- CONICET—Universidad de Buenos AiresInstituto de Química-Física de Materiales, Medio Ambiente y Energía (INQUIMAE)Pabellón 2, Ciudad UniversitariaC1428EHA BuenosAiresArgentina
| | - Francesca Arcudi
- Department of Chemical and Pharmaceutical SciencesUniversity of Trieste, and INSTM, unit of TriesteVia Licio Giorgieri 134127TriesteItaly
- Present address: Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIL60208USA
| | - Dirk M. Guldi
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular MaterialsFriedrich-Alexander Universität Erlangen-NürnbergEgerlandstrasse 391058ErlangenGermany
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical SciencesUniversity of Trieste, and INSTM, unit of TriesteVia Licio Giorgieri 134127TriesteItaly
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE)Basque Research and Technology Alliance (BRTA)Paseo de Miramon 18220014Donostia San SebastiánSpain
- Basque Foundation for ScienceIkerbasqueBilbao48013Spain
| |
Collapse
|
7
|
Cacioppo M, Scharl T, Đorđević L, Cadranel A, Arcudi F, Guldi DM, Prato M. Symmetry‐Breaking Charge‐Transfer Chromophore Interactions Supported by Carbon Nanodots. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004638] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Michele Cacioppo
- Department of Chemical and Pharmaceutical Sciences University of Trieste, and INSTM, unit of Trieste Via Licio Giorgieri 1 34127 Trieste Italy
| | - Tobias Scharl
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials Friedrich-Alexander Universität Erlangen-Nürnberg Egerlandstrasse 3 91058 Erlangen Germany
| | - Luka Đorđević
- Department of Chemical and Pharmaceutical Sciences University of Trieste, and INSTM, unit of Trieste Via Licio Giorgieri 1 34127 Trieste Italy
- Present address: Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- Present address: Simpson Querrey Institute Northwestern University 303 E. Superior Chicago IL 60611 USA
| | - Alejandro Cadranel
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials Friedrich-Alexander Universität Erlangen-Nürnberg Egerlandstrasse 3 91058 Erlangen Germany
- Universidad de Buenos Aires Facultad de Ciencias Exactas y Naturales Departamento de Química Inorgánica, Analítica y Química Física Pabellón 2, Ciudad Universitaria C1428EHA Buenos Aires Argentina
- CONICET— Universidad de Buenos Aires Instituto de Química-Física de Materiales, Medio Ambiente y Energía (INQUIMAE) Pabellón 2, Ciudad Universitaria C1428EHA Buenos Aires Argentina
| | - Francesca Arcudi
- Department of Chemical and Pharmaceutical Sciences University of Trieste, and INSTM, unit of Trieste Via Licio Giorgieri 1 34127 Trieste Italy
- Present address: Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Dirk M. Guldi
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials Friedrich-Alexander Universität Erlangen-Nürnberg Egerlandstrasse 3 91058 Erlangen Germany
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences University of Trieste, and INSTM, unit of Trieste Via Licio Giorgieri 1 34127 Trieste Italy
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE) Basque Research and Technology Alliance (BRTA) Paseo de Miramon 182 20014 Donostia San Sebastián Spain
- Basque Foundation for Science Ikerbasque Bilbao 48013 Spain
| |
Collapse
|
8
|
Abstract
Carbon nanodots (CNDs) hold great potential in imaging and drug delivery applications. In this study, nitrogen-doped CNDs (NCNDs) were coupled to the anticancer agent paclitaxel (PTX) through a labile ester bond. NCNDs showed excellent cell viability and endowed the NCND-PTX conjugate with good water solubility. The hybrid integrates the optical properties of the nanodots with the anticancer function of the drug into a single unit. Cytotoxicity was evaluated in breast, cervix, lung, and prostate cancer cell lines by the MTT assay while the cellular uptake was monitored using confocal microscopy. NCND-PTX induced apoptosis in cancer cells exhibiting slightly better anticancer activity compared to the drug alone. Moreover, the course of the NCND-PTX interaction with cancer cells was monitored using an xCELLigence system. The NCND-based conjugate represents a promising platform for bioimaging and drug delivery.
Collapse
Affiliation(s)
- I Jennifer Gomez
- Carbon Bionanotechnology Laboratory, CIC biomaGUNE, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
| | | | | | | | | |
Collapse
|
9
|
Cacioppo M, Vizzari V, D’Andrea C, Rossi R. T11-O-03 Male erotic imagery. Sexologies 2008. [DOI: 10.1016/s1158-1360(08)72949-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
10
|
Portolano B, Maizon DO, Riggio V, Tolone D, Cacioppo M. Effects of different simplified milk recording methods on genetic evaluation with Test-Day animal model. Italian Journal of Animal Science 2007. [DOI: 10.4081/ijas.2007.1s.195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- B. Portolano
- Dipartimento di Scienze Entomologiche, Fitopatologiche, Microbiologiche Agrarie e Zootecniche, Università di Palermo, Italy
| | - D. O. Maizon
- Dipartimento di Scienze Entomologiche, Fitopatologiche, Microbiologiche Agrarie e Zootecniche, Università di Palermo, Italy
| | - V. Riggio
- Dipartimento di Scienze Entomologiche, Fitopatologiche, Microbiologiche Agrarie e Zootecniche, Università di Palermo, Italy
| | - D. Tolone
- Dipartimento di Scienze Entomologiche, Fitopatologiche, Microbiologiche Agrarie e Zootecniche, Università di Palermo, Italy
| | - M. Cacioppo
- Dipartimento Interventi Infrastrutturali-Centro di Ricerca per le Biotecnologie Applicate alle Produzioni Animali e Vegetali-Assessorato Agricoltura e Foreste della Regione Siciliana, Italy
| |
Collapse
|