1
|
Pasek-Allen JL, Wilharm RK, Gao Z, Pierre VC, Bischof JC. Phosphonate coating of commercial iron oxide nanoparticles for nanowarming cryopreserved samples. J Mater Chem B 2022; 10:3734-3746. [PMID: 35466332 PMCID: PMC9116443 DOI: 10.1039/d1tb02483c] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
New preservation technologies may allow for organ banking similar to blood and biomaterial banking approaches. Using cryoprotective agents (CPAs), aqueous solutions with organic components such as DMSO, propylene glycol, and added salts and sugars, organs can be used to vitrify and store organs at −140 °C. When needed, these organs can be rewarmed in a rapid and uniform manner if CPAs are supplemented with iron oxide nanoparticles (IONPs) in an applied radiofrequency field. Speed and uniformity of warming are both IONP concentration and CPA suspension dependent. Here we present a coating method of small molecule phosphonate linker (PLink) and biocompatible polymer (i.e. polyethylene glycol PEG) that tunes stability and increases the maximum allowable concentration of IONPs in CPA suspension. PLink contains a phosphonate 'anchor' for high irreversible binding to iron oxide and a carboxylic acid 'handle' for ligand attachment. PLink-PEG removes and replaces the initial coating layer of commercially available IONPs (EMG1200 (hydrophobic) and EMG308 (hydrophilic) Ferrotec, Inc., increasing colloidal stability and decreasing aggregation in both water and CPAs, (verified with dynamic light scattering) from minutes (uncoated) to up to 6 days. Heating properties of EMG1200, specific absorption rate (SAR), measured using an applied field of 360 kHz and 20 kA m−1, increased from 20 to 180 W per g Fe with increasing PLink-PEG5000. PEG replacing the initially hydrophobic coating decreased aggregation in water and CPA, consistent with earlier studies on heating performance. Furthermore, although the size is minimized at 0.20 mol PEG per g Fe, heating is not maximized until concentrations above 0.43 mol PEG per g Fe on EMG1200. SAR on hydrophilic EMG308 was preserved at 400 W per g Fe regardless of the amount of PLink added to the core. Herein concentrations of IONP in VS55 (common CPA) significantly above our previous capabilities, sIONP at 10 mg Fe per mL, was reached, 25 mg Fe per mL of 308-PEG5000 and 60 mg Fe per mL of 1200-PEG5000, approaching stock EMG308 in water, 60 mg Fe per mL. Furthermore, at these concentrations cryopreserved Human dermal fibroblast cells were successfully nanowarmed (at applied fields described above), with higher viability as compared to convective rewarming in a water bath and heating rate close to 200 °C min−1, 2.5 times faster than our current system. Using PLink as the coating method allowed for higher concentrations of IONPs to be successfully suspended in CPA without affecting the heating ability. Additionally, the model ligand, PEG, allowed for increased stability over time in nanowarming experiments. New preservation technologies may allow for organ banking similar to blood and biomaterial banking approaches.![]()
Collapse
Affiliation(s)
- Jacqueline L. Pasek-Allen
- Department of Biomedical Engineering, University of Minnesota, 312 Church St. SE, Minneapolis, MN 55455, USA
| | - Randall K. Wilharm
- Department of Chemistry, University of Minnesota, 207 Pleasant St SE, Minneapolis, MN 55455, USA
| | - Zhe Gao
- Mechanical Engineering, University of Minnesota, 111 Church Street Se, Minneapolis, MN 55455, USA
| | - Valerie C. Pierre
- Department of Chemistry, University of Minnesota, 207 Pleasant St SE, Minneapolis, MN 55455, USA
| | - John C. Bischof
- Department of Biomedical Engineering, University of Minnesota, 312 Church St. SE, Minneapolis, MN 55455, USA
- Mechanical Engineering, University of Minnesota, 111 Church Street Se, Minneapolis, MN 55455, USA
| |
Collapse
|
2
|
Hristov DR, Lopez H, Ortin Y, O'Sullivan K, Dawson KA, Brougham DF. Impact of dynamic sub-populations within grafted chains on the protein binding and colloidal stability of PEGylated nanoparticles. NANOSCALE 2021; 13:5344-5355. [PMID: 33660726 DOI: 10.1039/d0nr08294e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Polyethylene glycol grafting has played a central role in preparing the surfaces of nano-probes for biological interaction, to extend blood circulation times and to modulate protein recognition and cellular uptake. However, the role of PEG graft dynamics and conformation in determining surface recognition processes is poorly understood primarily due to the absence of a microscopic picture of the surface presentation of the polymer. Here a detailed NMR analysis reveals three types of dynamic ethylene glycol units on PEG-grafted SiO2 nanoparticles (NPs) of the type commonly evaluated as long-circulating theranostic nano-probes; a narrow fraction with fast dynamics associated with the chain ends; a broadened fraction spectrally overlapped with the former arising from those parts of the chain experiencing some dynamic restriction; and a fraction too broad to be observed in the spectrum arising from units closer to the surface/graft which undergo slow motion on the NMR timescale. We demonstrate that ethylene glycol units transition between fractions as a function of temperature, core size, PEG chain length and surface coverage and demonstrate how this distribution affects colloidal stability and protein uptake. The implications of the findings for biological application of grafted nanoparticles are discussed in the context of accepted models for surface ligand conformation.
Collapse
Affiliation(s)
- Delyan R Hristov
- Centre for BioNano Interactions, School of Chemistry, University College Dublin, Dublin, Republic of Ireland
| | - Hender Lopez
- School of Physics & Optometric & Clinical Sciences, Technological University Dublin, City Campus, Kevin Street, Dublin 8, Republic of Ireland
| | - Yannick Ortin
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Republic of Ireland.
| | - Kate O'Sullivan
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Republic of Ireland.
| | - Kenneth A Dawson
- Centre for BioNano Interactions, School of Chemistry, University College Dublin, Dublin, Republic of Ireland
| | - Dermot F Brougham
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Republic of Ireland.
| |
Collapse
|
3
|
Hou Z, Liu Y, Xu J, Zhu J. Surface engineering of magnetic iron oxide nanoparticles by polymer grafting: synthesis progress and biomedical applications. NANOSCALE 2020; 12:14957-14975. [PMID: 32648868 DOI: 10.1039/d0nr03346d] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Magnetic iron oxide nanoparticles (IONPs) have wide applications in magnetic resonance imaging (MRI), biomedicine, drug delivery, hyperthermia therapy, catalysis, magnetic separation, and others. However, these applications are usually limited by irreversible agglomeration of IONPs in aqueous media because of their dipole-dipole interactions, and their poor stability. A protecting polymeric shell provides IONPs with not only enhanced long-term stability, but also the functionality of polymer shells. Therefore, polymer-grafted IONPs have recently attracted much attention of scientists. In this tutorial review, we will present the current strategies for grafting polymers onto the surface of IONPs, basically including "grafting from" and "grafting to" methods. Available functional groups and chemical reactions, which could be employed to bind polymers onto the IONP surface, are comprehensively summarized. Moreover, the applications of polymer-grafted IONPs will be briefly discussed. Finally, future challenges and perspectives in the synthesis and application of polymer-grafted IONPs will also be discussed.
Collapse
Affiliation(s)
- Zaiyan Hou
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China.
| | - Yijing Liu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China.
| | - Jiangping Xu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China.
| | - Jintao Zhu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China.
| |
Collapse
|
4
|
Pucci C, De Pasquale D, Marino A, Martinelli C, Lauciello S, Ciofani G. Hybrid Magnetic Nanovectors Promote Selective Glioblastoma Cell Death through a Combined Effect of Lysosomal Membrane Permeabilization and Chemotherapy. ACS APPLIED MATERIALS & INTERFACES 2020; 12:29037-29055. [PMID: 32459082 PMCID: PMC7343532 DOI: 10.1021/acsami.0c05556] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Glioblastoma multiforme is the most aggressive brain tumor, due to its high invasiveness and genetic heterogeneity. Moreover, the blood-brain barrier prevents many drugs from reaching a therapeutic concentration at the tumor site, and most of the chemotherapeutics lack in specificity toward cancer cells, accumulating in both healthy and diseased tissues, with severe side effects. Here, we present in vitro investigations on lipid-based nanovectors encapsulating a drug, nutlin-3a, and superparamagnetic iron oxide nanoparticles, to combine the proapoptotic action of the drug and the hyperthermia mediated by superparamagnetic iron oxide nanoparticles stimulated with an alternating magnetic field. The nanovectors are functionalized with the peptide angiopep-2 to induce receptor-mediated transcytosis through the blood-brain barrier and to target a receptor overexpressed by glioma cells. The glioblastoma multiforme targeting efficiency and the blood-brain barrier crossing abilities were tested through in vitro fluidic models, where different human cell lines were placed to mimic the tumor microenvironment. These nanovectors successfully cross the blood-brain barrier model, maintaining their targeting abilities for glioblastoma multiforme with minimal interaction with healthy cells. Moreover, we showed that nanovector-assisted hyperthermia induces a lysosomal membrane permeabilization that not only initiates a caspase-dependent apoptotic pathway, but also enhances the anticancer efficacy of the drug.
Collapse
Affiliation(s)
- Carlotta Pucci
- Istituto
Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Daniele De Pasquale
- Istituto
Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
- Scuola
Superiore Sant’Anna, The Biorobotics Institute, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Attilio Marino
- Istituto
Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Chiara Martinelli
- Istituto
Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Simone Lauciello
- Istituto
Italiano di Tecnologia, Electron Microscopy Facility, Via Morego 30, 16163 Genova, Italy
| | - Gianni Ciofani
- Istituto
Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| |
Collapse
|
5
|
Bordeianu C, Parat A, Affolter-Zbaraszczuk C, Muller RN, Boutry S, Begin-Colin S, Meyer F, Laurent S, Felder-Flesch D. How a grafting anchor tailors the cellular uptake and in vivo fate of dendronized iron oxide nanoparticles. J Mater Chem B 2017; 5:5152-5164. [DOI: 10.1039/c7tb00781g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Superparamagnetic iron oxide nanoparticles synthesized by thermal decomposition have been grafted with two dendrons bearing respectively a monophosphonic anchor (D2) or a biphosphonic tweezer (D2-2P) at their focal point.
Collapse
Affiliation(s)
- C. Bordeianu
- Université de Strasbourg
- CNRS
- Institut de Physique et Chimie des Matériaux de Strasbourg
- F-67000 Strasbourg
- France
| | - A. Parat
- Université de Strasbourg
- CNRS
- Institut de Physique et Chimie des Matériaux de Strasbourg
- F-67000 Strasbourg
- France
| | | | - R. N. Muller
- University of Mons
- General
- Organic and Biomedical Chemistry NMR and Molecular Imaging Laboratory
- 7000 Mons
- Belgium
| | - S. Boutry
- University of Mons
- General
- Organic and Biomedical Chemistry NMR and Molecular Imaging Laboratory
- 7000 Mons
- Belgium
| | - S. Begin-Colin
- Université de Strasbourg
- CNRS
- Institut de Physique et Chimie des Matériaux de Strasbourg
- F-67000 Strasbourg
- France
| | - F. Meyer
- Université de Strasbourg
- INSERM
- UMR 1121 Biomatériaux et Bioingénierie
- 67000 Strasbourg
- France
| | - S. Laurent
- University of Mons
- General
- Organic and Biomedical Chemistry NMR and Molecular Imaging Laboratory
- 7000 Mons
- Belgium
| | - D. Felder-Flesch
- Université de Strasbourg
- CNRS
- Institut de Physique et Chimie des Matériaux de Strasbourg
- F-67000 Strasbourg
- France
| |
Collapse
|
6
|
De Roo J, De Keukeleere K, Hens Z, Van Driessche I. From ligands to binding motifs and beyond; the enhanced versatility of nanocrystal surfaces. Dalton Trans 2016; 45:13277-83. [DOI: 10.1039/c6dt02410f] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Surface chemistry bridges the gap between nanocrystal synthesis and their applications.
Collapse
Affiliation(s)
- J. De Roo
- Department of Inorganic and Physical Chemistry
- Ghent University
- 9000 Gent
- Belgium
| | - K. De Keukeleere
- Department of Inorganic and Physical Chemistry
- Ghent University
- 9000 Gent
- Belgium
| | - Z. Hens
- Department of Inorganic and Physical Chemistry
- Ghent University
- 9000 Gent
- Belgium
| | - I. Van Driessche
- Department of Inorganic and Physical Chemistry
- Ghent University
- 9000 Gent
- Belgium
| |
Collapse
|
7
|
Zeng S, Huang YMM, Chang CEA, Zhong W. Protein binding for detection of small changes on a nanoparticle surface. Analyst 2015; 139:1364-71. [PMID: 24482794 DOI: 10.1039/c3an02155f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Protein adsorption on nanoparticles is closely associated with the physicochemical properties of particles, in particular, their surface properties. We synthesized two batches of polyacrylic acid-coated nanoparticles under almost identical conditions except for the heating duration and found differences in the head-group structure of the polyacrylic acid. The structure change was confirmed by NMR and MS. The two batches of particles had varied binding affinities to a selected group of proteins. Computational work confirmed that the head group of the polymer on the surface of a nanoparticle could directly interact with a protein, and small structural changes in the head group were sufficient to result in a significant difference in the free energy of binding. Our results demonstrate that protein adsorption is so sensitive to the surface properties of particles that it can reveal even small variations in the structure of a nanoparticle surface ligand, and should be useful for quick assessment of nanoparticle properties.
Collapse
Affiliation(s)
- Shang Zeng
- Department of Chemistry, University of California, Riverside, CA 92521, USA.
| | | | | | | |
Collapse
|
8
|
Henoumont C, Laurent S, Muller RN, Vander Elst L. HR-MAS NMR Spectroscopy: An Innovative Tool for the Characterization of Iron Oxide Nanoparticles Tracers for Molecular Imaging. Anal Chem 2015; 87:1701-10. [DOI: 10.1021/ac5035105] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Céline Henoumont
- Department
of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging
Laboratory, University of Mons, 19 Avenue Maistriau, B-7000 Mons, Belgium
| | - Sophie Laurent
- Department
of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging
Laboratory, University of Mons, 19 Avenue Maistriau, B-7000 Mons, Belgium
| | - Robert N. Muller
- Department
of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging
Laboratory, University of Mons, 19 Avenue Maistriau, B-7000 Mons, Belgium
- Center
for Microscopy
and Molecular Imaging (CMMI), 8 Rue
Adrienne Boland, 6041 Gosselies, Belgium
| | - Luce Vander Elst
- Department
of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging
Laboratory, University of Mons, 19 Avenue Maistriau, B-7000 Mons, Belgium
- Center
for Microscopy
and Molecular Imaging (CMMI), 8 Rue
Adrienne Boland, 6041 Gosselies, Belgium
| |
Collapse
|
9
|
Vasyukov GY, Mitrofanova IV, Ivanova VV, Prokopiyeva VD. SURFACE MODIFITED MAGNETIC NANOPARTICLES FOR BIOMEDICAL APPLICATION. BULLETIN OF SIBERIAN MEDICINE 2014. [DOI: 10.20538/1682-0363-2014-6-33-40] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- G. Yu. Vasyukov
- Siberian State Medical University, Tomsk;
Research Institute of Complex Problems of Cardio-Vascular Diseases, Siberian Branch of Russian Academy of Medical Science, Kemerovo
| | | | | | - V. D. Prokopiyeva
- Research Institute of Mental Health, Siberian Branch of Russian Academy Medical Science, Tomsk
| |
Collapse
|
10
|
Park M, Kim Y, Ko Y, Cheong S, Ryu SW, Cho J. Amphiphilic Layer-by-Layer Assembly Overcoming Solvent Polarity between Aqueous and Nonpolar Media. J Am Chem Soc 2014; 136:17213-23. [DOI: 10.1021/ja509168g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Minkyung Park
- Department
of Chemical and Biological Engineering, Korea University, Seoul 136-713, Republic of Korea
| | - Younghoon Kim
- Department
of Chemical and Biological Engineering, Korea University, Seoul 136-713, Republic of Korea
| | - Yongmin Ko
- Department
of Chemical and Biological Engineering, Korea University, Seoul 136-713, Republic of Korea
| | - Sanghyuk Cheong
- Department
of Chemical and Biological Engineering, Korea University, Seoul 136-713, Republic of Korea
| | - Sook Won Ryu
- Department
of Laboratory Medicine, Kangwon National University School of Medicine, Chuncheon-si, Gangwon-do, Republic of Korea
| | - Jinhan Cho
- Department
of Chemical and Biological Engineering, Korea University, Seoul 136-713, Republic of Korea
| |
Collapse
|
11
|
Lu JT, Lin JCY, Lin MC, Khupse ND, Lin IJB. Labile imidazolium salt protected palladium nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:10440-10448. [PMID: 25098189 DOI: 10.1021/la501569e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
An imidazolium (Im) salt with two long alkyl substituents at N atoms is employed to prepare cubelike palladium nanoparticles (PdNPs). The bilayer nature of the capped Im salts is characterized by thermogravimetric analysis and NMR studies. These capped Im salts are labile, as evidenced by their displacement reaction with dimethylaminopyridine, and the observation of fast exchange between those free and capped Im salts on the NMR time scale. NMR results also show that these capped Im salts exhibit different diffusion rates, and interesting spinning rate dependent chemical shifts. These cubelike PdNPs could catalyze the Suzuki coupling of aryl chlorides and boronic acids with high yields in 10 min, even at room temperature.
Collapse
Affiliation(s)
- Jung-Tang Lu
- Department of Chemistry, National Dong-Hwa University , Shoufeng, Hualien 974, Taiwan
| | | | | | | | | |
Collapse
|
12
|
Ramella D, Polito L, Mazzini S, Ronchi S, Scaglioni L, Marelli M, Lay L. A Strategy for Multivalent Presentation of Carba Analogues fromN. meningitidisA Capsular Polysaccharide. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402701] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
13
|
Chiodo F, Enríquez-Navas PM, Angulo J, Marradi M, Penadés S. Assembling different antennas of the gp120 high mannose-type glycans on gold nanoparticles provides superior binding to the anti-HIV antibody 2G12 than the individual antennas. Carbohydr Res 2014; 405:102-9. [PMID: 25573666 DOI: 10.1016/j.carres.2014.07.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 07/11/2014] [Accepted: 07/15/2014] [Indexed: 11/16/2022]
Abstract
In order to re-build Man9GlcNAc2 clusters of the HIV gp120 glycoprotein, ∼2 nm gold glyconanoparticles (GNPs) were coated with the synthetic partial structures of Man9, the tetramannoside Manα1-2Manα1-2Manα1-3Manα1- and the pentamannoside Manα1-2Manα1-3[Manα1-2Manα1-6]Manα1-. Their interactions with the anti-HIV broadly neutralizing antibody 2G12 were studied by surface plasmon resonance (SPR)-based biosensors and saturation transfer difference (STD)-NMR spectroscopy. A synergistic effect of the tetra- and pentamannosides multimerized on a same GNP was observed. The assembly of these antennas of the gp120 high-mannose type glycan on GNPs provided superior binding to the anti-HIV antibody 2G12 with respect to GNPs carrying only the individual oligomannosides. The results presented in this work provide new molecular information on the interactions between clusters of oligomannosides and 2G12 that could help in the design of a carbohydrate-based vaccine against HIV.
Collapse
Affiliation(s)
- Fabrizio Chiodo
- Laboratory of Glyconanotechnology, Biofunctional Nanomaterials Unit, CIC biomaGUNE, P° de Miramón 182, 28009 San Sebastian, Spain
| | - Pedro M Enríquez-Navas
- Laboratory of Glyconanotechnology, Biofunctional Nanomaterials Unit, CIC biomaGUNE, P° de Miramón 182, 28009 San Sebastian, Spain
| | - Jesús Angulo
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
| | - Marco Marradi
- Laboratory of Glyconanotechnology, Biofunctional Nanomaterials Unit, CIC biomaGUNE, P° de Miramón 182, 28009 San Sebastian, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), P° de Miramón 182, 28009 San Sebastian, Spain
| | - Soledad Penadés
- Laboratory of Glyconanotechnology, Biofunctional Nanomaterials Unit, CIC biomaGUNE, P° de Miramón 182, 28009 San Sebastian, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), P° de Miramón 182, 28009 San Sebastian, Spain.
| |
Collapse
|
14
|
Pershina AG, Sazonov AE, Filimonov VD. Magnetic nanoparticles–DNA interactions: design and applications of nanobiohybrid systems. RUSSIAN CHEMICAL REVIEWS 2014. [DOI: 10.1070/rc2014v083n04abeh004412] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
15
|
Carrara C, Sala MC, Caneva E, Cauteruccio S, Licandro E. Magnetic iron oxide nanoparticle functionalization: isocyanate moiety as a suitable monodentate anchoring group. Org Lett 2014; 16:460-3. [PMID: 24364416 DOI: 10.1021/ol4033489] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A new strategy for anchoring organic molecules onto superparamagnetic iron oxide nanoparticles (SPIONs) using isocyanate containing linkers has been realized. This functional group easily and efficiently reacts with the hydroxyl residues of the nanoparticle surface, leading to the formation of a stable carbamate bond, as confirmed by means of spectroscopic and analytical data.
Collapse
Affiliation(s)
- Claudio Carrara
- Dipartimento di Chimica and ‡Centro Interdipartimentale Grandi Apparecchiature (CIGA), Università degli Studi di Milano , Via C. Golgi 19, I-20133 Milano, Italy
| | | | | | | | | |
Collapse
|
16
|
Thandu M, Rapozzi V, Xodo L, Albericio F, Comuzzi C, Cavalli S. “Clicking” Porphyrins to Magnetic Nanoparticles for Photodynamic Therapy. Chempluschem 2013; 79:90-98. [DOI: 10.1002/cplu.201300276] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Indexed: 11/10/2022]
|
17
|
Yan B, Jeong Y, Mercante LA, Tonga GY, Kim C, Zhu ZJ, Vachet RW, Rotello VM. Characterization of surface ligands on functionalized magnetic nanoparticles using laser desorption/ionization mass spectrometry (LDI-MS). NANOSCALE 2013; 5:5063-5066. [PMID: 23640282 DOI: 10.1039/c3nr01384g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Functionalized magnetic nanoparticles (MNPs) have been characterized by laser desorption/ionization mass spectrometry (LDI-MS). Quantitative information about surface ligand composition and structure for monolayer and mixed monolayer protected Fe3O4 and FePt NPs can be obtained rapidly with very little sample consumption.
Collapse
Affiliation(s)
- Bo Yan
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant St, Amherst, Massachusetts, USA
| | | | | | | | | | | | | | | |
Collapse
|
18
|
Maiti S, Chen HY, Chen TY, Hsia CH, Son DH. Effect of surfactant and solvent on spin-lattice relaxation dynamics of magnetic nanocrystals. J Phys Chem B 2013; 117:4399-405. [PMID: 23003213 DOI: 10.1021/jp307321r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The effect of varying the surfactant and solvent medium on the dynamics of spin-lattice relaxation in photoexcited Fe3O4 nanocrystals has been investigated by measuring the time-dependent magnetization employing pump-probe transient Faraday rotation technique. The variation of the surfactants having surface-binding functional groups modified not only the static magnetization but also the dynamics of the recovery of the magnetization occurring via spin-lattice relaxation in the photoexcited Fe3O4 nanocrystals. The variation of the polarity and size of the solvent molecules can also influence the spin-lattice relaxation dynamics. However, the effect is limited to the nanocrystals having sufficiently permeable surfactant layer, where the small solvent molecules (e.g., water) can access the surface and dynamically modify the ligand field on the surface.
Collapse
Affiliation(s)
- Sourav Maiti
- Department of Chemistry, Texas A&M University, College Station, Texas 77842, USA
| | | | | | | | | |
Collapse
|
19
|
Hoffmann R. Klein, aber oho: was die Nanowissenschaft von der Chemie lernen kann. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206678] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
20
|
|
21
|
Cavalli S, Carbajo D, Acosta M, Lope-Piedrafita S, Candiota AP, Arús C, Royo M, Albericio F. Efficient γ-amino-proline-derived cell penetrating peptide-superparamagnetic iron oxide nanoparticle conjugates via aniline-catalyzed oxime chemistry as bimodal imaging nanoagents. Chem Commun (Camb) 2012; 48:5322-4. [PMID: 22516929 DOI: 10.1039/c2cc17937g] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Aniline-catalyzed oxime chemistry was employed to conjugate a γ-amino-proline-derived cell penetrating peptide to superparamagnetic iron oxide nanoparticles (SPIONs). Internalization of the novel nanoconjugate into HeLa cells was found to be remarkably higher compared to the analogous TAT-SPION conjugate.
Collapse
Affiliation(s)
- Silvia Cavalli
- CIBER-BBN, Networking Centre on Bioengineering, Biomaterials, and Nanomedicine, 08028 Barcelona, Spain.
| | | | | | | | | | | | | | | |
Collapse
|
22
|
González-Gálvez D, Nolis P, Philippot K, Chaudret B, van Leeuwen PWNM. Phosphine-Stabilized Ruthenium Nanoparticles: The Effect of the Nature of the Ligand in Catalysis. ACS Catal 2012. [DOI: 10.1021/cs200633k] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Pau Nolis
- Servei de Ressonància
Magnètica Nuclear, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Karine Philippot
- LCC (Laboratoire de Chimie de
Coordination du CNRS), CNRS, 205 route
de Narbonne, F-31077 Toulouse, France and Université de Toulouse, UPS, INPT, LCC; F-31077 Toulouse, France
| | - Bruno Chaudret
- Laboratoire de Physique et Chimie
des Nano-Objets, Institut des Sciences Appliquées de Toulouse, 31077 Toulouse, Cédex 04, France
| | | |
Collapse
|
23
|
Das M, Bandyopadhyay D, Singh RP, Harde H, Kumar S, Jain S. Orthogonal biofunctionalization of magnetic nanoparticles via “clickable” poly(ethylene glycol) silanes: a “universal ligand” strategy to design stealth and target-specific nanocarriers. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm34571d] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
24
|
Das M, Bandyopadhyay D, Mishra D, Datir S, Dhak P, Jain S, Maiti TK, Basak A, Pramanik P. “Clickable”, Trifunctional Magnetite Nanoparticles and Their Chemoselective Biofunctionalization. Bioconjug Chem 2011; 22:1181-93. [DOI: 10.1021/bc2000484] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Manasmita Das
- Centre of Pharmaceutical
Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, SAS Nagar, Mohali 160062, India
| | - Debarati Bandyopadhyay
- Molecular Biophysics
Unit, Indian Institute of Science Bangalore, Bangalore 560012, India
| | | | - Satyajit Datir
- Centre of Pharmaceutical
Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, SAS Nagar, Mohali 160062, India
| | | | - Sanyog Jain
- Centre of Pharmaceutical
Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, SAS Nagar, Mohali 160062, India
| | - Tapas Kumar Maiti
- Molecular Biophysics
Unit, Indian Institute of Science Bangalore, Bangalore 560012, India
| | | | | |
Collapse
|
25
|
Occhipinti E, Verderio P, Natalello A, Galbiati E, Colombo M, Mazzucchelli S, Salvadè A, Tortora P, Doglia SM, Prosperi D. Investigating the structural biofunctionality of antibodies conjugated to magnetic nanoparticles. NANOSCALE 2011; 3:387-390. [PMID: 20877896 DOI: 10.1039/c0nr00436g] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We present the synthesis of trastuzumab-functionalized pegylated iron oxide nanoparticles and provide an FTIR-based approach to gain a direct evidence of the actual conservation of the native structure of conjugated antibody. Their target-selectivity to specific cancer cell receptors has been also assessed.
Collapse
Affiliation(s)
- Emanuela Occhipinti
- Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, P.za della Scienza 2, 20126, Milano, Italy
| | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Hu W, Tong W, Li L, Zheng J, Li G. Cation non-stoichiometry in multi-component oxide nanoparticles by solution chemistry: a case study on CaWO4 for tailored structural properties. Phys Chem Chem Phys 2011; 13:11634-43. [DOI: 10.1039/c0cp02153a] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
27
|
Piazza M, Colombo M, Zanoni I, Granucci F, Tortora P, Weiss J, Gioannini T, Prosperi D, Peri F. Uniform Lipopolysaccharide (LPS)-Loaded Magnetic Nanoparticles for the Investigation of LPS-TLR4 Signaling. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201004655] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
28
|
Piazza M, Colombo M, Zanoni I, Granucci F, Tortora P, Weiss J, Gioannini T, Prosperi D, Peri F. Uniform lipopolysaccharide (LPS)-loaded magnetic nanoparticles for the investigation of LPS-TLR4 signaling. Angew Chem Int Ed Engl 2010; 50:622-6. [PMID: 21226138 DOI: 10.1002/anie.201004655] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2010] [Indexed: 12/11/2022]
Affiliation(s)
- Matteo Piazza
- Dipartimento di Biotecnologie e Bioscienze, Università di Milano Bicocca, Piazza della Scienza 2, 20126 Milano, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Mazzucchelli S, Colombo M, De Palma C, Salvadè A, Verderio P, Coghi MD, Clementi E, Tortora P, Corsi F, Prosperi D. Single-domain protein A-engineered magnetic nanoparticles: toward a universal strategy to site-specific labeling of antibodies for targeted detection of tumor cells. ACS NANO 2010; 4:5693-5702. [PMID: 20825223 DOI: 10.1021/nn101307r] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Highly monodisperse magnetite nanocrystals (MNC) were synthesized in organic media and transferred to the water phase by ultrasound-assisted ligand exchange with an iminodiacetic phosphonate. The resulting biocompatible magnetic nanoparticles were characterized by transmission electron microscopy, dynamic light scattering, and magnetorelaxometry, indicating that this method allowed us to obtain stable particle dispersions with narrow size distribution and unusually high magnetic resonance T(2) contrast power. These nanoparticles were conjugated to a newly designed recombinant monodomain protein A variant, which exhibited a convincingly strong affinity for human and rabbit IgG molecules. Owing to the nature of antibody-protein A binding, tight antibody immobilization occurred through the Fc fragment thus taking full advantage of the targeting potential of bound IgGs. If necessary, monoclonal antibodies could be removed under controlled conditions regenerating the original IgG-conjugatable MNC. As a proof of concept of the utility of our paramagnetic labeling system of human IgGs for biomedical applications, anti-HER-2 monoclonal antibody trastuzumab was immobilized on hybrid MNC (TMNC). TMNC were assessed by immunoprecipitation assay and confocal microscopy effected on HER-2-overexpressing MCF-7 breast cancer cells, demonstrating excellent recognition capability and selectivity for the target membrane receptor.
Collapse
Affiliation(s)
- Serena Mazzucchelli
- Dipartimento di Scienze Cliniche Luigi Sacco, Università di Milano, Ospedale L. Sacco, via G.B. Grassi 74, 20157 Milano, Italy
| | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Kamat M, El-Boubbou K, Zhu DC, Lansdell T, Lu X, Li W, Huang X. Hyaluronic acid immobilized magnetic nanoparticles for active targeting and imaging of macrophages. Bioconjug Chem 2010; 21:2128-35. [PMID: 20977242 DOI: 10.1021/bc100354m] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Imaging and targeted delivery to macrophages are promising new approaches to study and treat a variety of inflammatory diseases such as atherosclerosis. In this manuscript, we have designed and synthesized iron oxide based magnetic nanoparticles bearing hyaluronic acid (HA) on the surface to target activated macrophages. The HA-coated nanoparticles were prepared through a co-precipitation procedure followed by postsynthetic functionalization with HA and fluorescein. The nanoparticles were characterized by transmission electron microscopy, thermogravimetric analysis, elemental analysis, dynamic light scattering, and high-resolution magic angle spinning NMR and were biocompatible with cells and colloidally stable in the presence of serum. The HA immobilized on the nanoparticles retained their specific biological recognition with the HA receptor CD44, which is present on activated macrophages in high-affinity forms. Cell uptake studies demonstrated significant uptake of HA nanoparticles by activated macrophage cell line THP-1, which enabled magnetic resonance imaging of THP-1 cells. The uptake of nanoparticles was found to be both HA and CD44 dependent. Interestingly, Prussian blue staining showed that the magnetite cores of the HA-coated nanoparticles were only transiently present inside the cells, thus reducing the potential concerns of nanotoxicity. Furthermore, fluorescein on the nanoparticle was found to be delivered to the cell nucleus. Therefore, with further development, these HA functionalized magnetic nanoparticles can potentially become a useful carrier system for molecular imaging and targeted drug delivery to activated macrophages.
Collapse
Affiliation(s)
- Medha Kamat
- Department of Chemistry, Michigan State University, East Lansing, 48824, United States
| | | | | | | | | | | | | |
Collapse
|
31
|
El-Boubbou K, Zhu DC, Vasileiou C, Borhan B, Prosperi D, Li W, Huang X. Magnetic glyco-nanoparticles: a tool to detect, differentiate, and unlock the glyco-codes of cancer via magnetic resonance imaging. J Am Chem Soc 2010; 132:4490-9. [PMID: 20201530 DOI: 10.1021/ja100455c] [Citation(s) in RCA: 165] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Within cancer, there is a large wealth of diversity, complexity, and information that nature has engineered rendering it challenging to identify reliable detection methods. Therefore, the development of simple and effective techniques to delineate the fine characteristics of cancer cells can have great potential impacts on cancer diagnosis and treatment. Herein, we report a magnetic glyco-nanoparticle (MGNP) based nanosensor system bearing carbohydrates as the ligands, not only to detect and differentiate cancer cells but also to quantitatively profile their carbohydrate binding abilities by magnetic resonance imaging (MRI). Using an array of MGNPs, a range of cells including closely related isogenic tumor cells, cells with different metastatic potential and malignant vs normal cells can be readily distinguished based on their respective "MRI signatures". Furthermore, the information obtained from such studies helped guide the establishment of strongly binding MGNPs as antiadhesive agents against tumors. As the interactions between glyco-conjugates and endogenous lectins present on cancer cell surface are crucial for cancer development and metastasis, the ability to characterize and unlock the glyco-code of individual cell lines can facilitate both the understanding of the roles of carbohydrates as well as the expansion of diagnostic and therapeutic tools for cancer.
Collapse
|
32
|
Shylesh S, Schünemann V, Thiel WR. Magnetically Separable Nanocatalysts: Bridges between Homogeneous and Heterogeneous Catalysis. Angew Chem Int Ed Engl 2010; 49:3428-59. [PMID: 20419718 DOI: 10.1002/anie.200905684] [Citation(s) in RCA: 943] [Impact Index Per Article: 67.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sankaranarayanapillai Shylesh
- Fachbereich Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Strasse 52, 67663 Kaiserslautern, Germany.
| | | | | |
Collapse
|
33
|
Shylesh S, Schünemann V, Thiel W. Magnetisch abtrennbare Nanokatalysatoren: Brücken zwischen homogener und heterogener Katalyse. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200905684] [Citation(s) in RCA: 134] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
34
|
Mullen DG, Fang M, Desai A, Baker JR, Orr BG, Banaszak Holl MM. A quantitative assessment of nanoparticle-ligand distributions: implications for targeted drug and imaging delivery in dendrimer conjugates. ACS NANO 2010; 4:657-70. [PMID: 20131876 PMCID: PMC2836386 DOI: 10.1021/nn900999c] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Functional nanoparticles often contain ligands including targeting molecules, fluorophores, and/or active moieties such as drugs. Characterizing the number of these ligands bound to each particle and the distribution of nanoparticle-ligand species is important for understanding the nanomaterial's function. In this study, the amide coupling methods commonly used to conjugate ligands to poly(amidoamine) (PAMAM) dendrimers were examined. A skewed Poisson distribution was observed and quantified using HPLC for two sets of dendrimer-ligand samples prepared using the amine-terminated form of the PAMAM dendrimer and a partially acetylated form of the PAMAM dendrimer that has been used for targeted in vivo drug delivery. The prepared samples had an average number of ligands per dendrimer ranging from 0.4 to 13. Distributions identified by HPLC are in excellent agreement with the mean ligand/dendrimer ratio, measured by (1)H NMR, gel permeation chromatography (GPC), and potentiometric titration. These results provide insight into the heterogeneity of distributions that are obtained for many classes of nanomaterials to which ligands are conjugated and belie the use of simple cartoon models that present the "average" number of ligands bound as a physically meaningful representation for the material.
Collapse
Affiliation(s)
- Douglas G. Mullen
- Program in Macromolecular Science and Engineering, University of Michigan, Ann Arbor, MI 48109
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan, Ann Arbor, MI 48109
| | - Ming Fang
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan, Ann Arbor, MI 48109
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109
| | - Ankur Desai
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan, Ann Arbor, MI 48109
| | - James R. Baker
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan, Ann Arbor, MI 48109
| | - Bradford G. Orr
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan, Ann Arbor, MI 48109
- Program in Applied Physics, University of Michigan, Ann Arbor, MI 48109
- Department of Physics, University of Michigan, Ann Arbor, MI 48109
| | - Mark M. Banaszak Holl
- Program in Macromolecular Science and Engineering, University of Michigan, Ann Arbor, MI 48109
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan, Ann Arbor, MI 48109
- Program in Applied Physics, University of Michigan, Ann Arbor, MI 48109
- Department of Physics, University of Michigan, Ann Arbor, MI 48109
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109
- Corresponding author: Mark M. Banaszak Holl, , 930 N. University Avenue, Ann Arbor, MI 48109-1055. TEL: 734-763-2283, FAX: 734-763-2283
| |
Collapse
|
35
|
Barbaro P, Santo VD, Liguori F. Emerging strategies in sustainable fine-chemical synthesis: asymmetric catalysis by metal nanoparticles. Dalton Trans 2010; 39:8391-402. [DOI: 10.1039/c002051f] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
36
|
Corsi F, De Palma C, Colombo M, Allevi R, Nebuloni M, Ronchi S, Rizzi G, Tosoni A, Trabucchi E, Clementi E, Prosperi D. Towards ideal magnetofluorescent nanoparticles for bimodal detection of breast-cancer cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2009; 5:2555-2564. [PMID: 19634132 DOI: 10.1002/smll.200900881] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
An increasing number of novel molecular markers based on nanomaterials for tumor diagnostics have been developed in recent years. Many efforts have focused on the achievement of site-targeted bioconjugated nanoparticles. In contrast, the mechanisms of toxicity, endocytosis, and degradation pathways are still poorly understood, despite their primary importance for clinical translation. In this study, three different model nanoscale magnetofluorescent particle systems (MFNs) are designed and fabricated. These nanoparticles are evaluated in terms of size, morphology, zeta potential, fluorescence efficiency, capability of enhancing T(2) relaxivity of water protons, and stability. Accordingly, two are developed and the mechanism of internalization, the intracellular fate, and the toxicity in MCF-7 adenocarcinoma cells are studied. Besides the well-documented size effect, the anionic charge seems to be a crucial factor for particle internalization, as MFN penetration through the cell membrane could be modulated by surface charge. Ultrastructural analysis of transmission electron micrographs combined with evidence from confocal microscopy reveals that MFNs are internalized by clathrin-mediated endocytosis and macropinocytosis. Moreover, MFNs are found in EEA1-positive endosomes and in lysosomes, indicating that they follow a physiological pathway of endocytosis. Magnetorelaxometric analysis demonstrates that MFNs enable the detection of 5 x 10(5) cells mL(-1) after treatment with particle dosages as low as 30 microg mL(-1). Hence, MFNs appear to be a valuable and safe bimodal contrast agent that can be developed for the noninvasive diagnosis of breast cancer.
Collapse
Affiliation(s)
- Fabio Corsi
- Dipartimento di Scienze Cliniche Luigi Sacco, Università degli Studi di Milano, Ospedale L. Sacco, Via G.B. Grassi 74, 20157 Milano, Italy
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Femtomolar detection of autoantibodies by magnetic relaxation nanosensors. Anal Biochem 2009; 392:96-102. [DOI: 10.1016/j.ab.2009.05.034] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2009] [Revised: 05/22/2009] [Accepted: 05/22/2009] [Indexed: 11/19/2022]
|
38
|
Prencipe G, Maiorana S, Verderio P, Colombo M, Fermo P, Caneva E, Prosperi D, Licandro E. Magnetic peptide nucleic acids for DNA targeting. Chem Commun (Camb) 2009:6017-9. [PMID: 19809629 DOI: 10.1039/b911449a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A versatile synthetic platform for the efficient immobilization of PNAs on magnetic iron oxides, providing magnetic nanosensors for selective DNA recognition, is presented.
Collapse
Affiliation(s)
- Giuseppe Prencipe
- Dipartimento di Chimica Organica e Industriale, Università di Milano, Via Venezian, 21-20133 Milano, Italy
| | | | | | | | | | | | | | | |
Collapse
|
39
|
Preparation and fluorescence properties of fluorophore-labeled avidin–biotin system immobilized on Fe3O4 nanoparticles through functional indolequinone linker. Bioorg Med Chem 2009; 17:3775-81. [DOI: 10.1016/j.bmc.2009.04.048] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2009] [Revised: 04/22/2009] [Accepted: 04/23/2009] [Indexed: 01/02/2023]
|