1
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Shahnazarova G, Al Hoda Al Bast N, Ramirez JC, Nogues J, Esteve J, Fraxedas J, Serra A, Esplandiu MJ, Sepulveda B. Fe/Au galvanic nanocells to generate self-sustained Fenton reactions without additives at neutral pH. Mater Horiz 2024; 11:2206-2216. [PMID: 38415289 DOI: 10.1039/d3mh01935g] [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] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
The generation of reactive oxygen species (ROS) via the Fenton reaction has received significant attention for widespread applications. This reaction can be triggered by zero-valent metal nanoparticles by converting externally added H2O2 into hydroxyl radicals (˙OH) in acidic media. To avoid the addition of external additives or energy supply, developing self-sustained catalytic systems enabling onsite production of H2O2 at a neutral pH is crucial. Here, we present novel galvanic nanocells (GNCs) based on metallic Fe/Au bilayers on arrays of nanoporous silica nanostructures for the generation of self-sustained Fenton reactions. These GNCs exploit the large electrochemical potential difference between the Fe and Au layers to enable direct H2O2 production and efficient release of Fe2+ in water at neutral pH, thereby triggering the Fenton reaction. Additionally, the GNCs promote Fe2+/Fe3+ circulation and minimize side reactions that passivate the iron surface to enhance their reactivity. The capability to directly trigger the Fenton reaction in water at pH 7 is demonstrated by the fast degradation and mineralization of organic pollutants, by using tiny amounts of catalyst. The self-generated H2O2 and its transformation into ˙OH in a neutral environment provide a promising route not only in environmental remediation but also to produce therapeutic ROS and address the limitations of Fenton catalytic nanostructures.
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Affiliation(s)
- Gubakhanim Shahnazarova
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, E-08193 Barcelona, Spain.
- Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Nour Al Hoda Al Bast
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, E-08193 Barcelona, Spain.
- Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Jessica C Ramirez
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, E-08193 Barcelona, Spain.
- Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Josep Nogues
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, E-08193 Barcelona, Spain.
- ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Jaume Esteve
- Instituto de Microelectrónica de Barcelona (IMB-CNM, CSIC), Barcelona, 08193, Spain.
| | - Jordi Fraxedas
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, E-08193 Barcelona, Spain.
| | - Albert Serra
- Grup d'Electrodeposició de Capes Primes i Nanoestructures (GE-CPN), Departament de Ciència de Materials i Química Física, Universitat de Barcelona, Martí i Franquès, 1, E-08028, Barcelona, Catalonia, Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Maria J Esplandiu
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, E-08193 Barcelona, Spain.
| | - Borja Sepulveda
- Instituto de Microelectrónica de Barcelona (IMB-CNM, CSIC), Barcelona, 08193, Spain.
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2
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Goršak T, Jovičić EJ, Tratnjek L, Križaj I, Sepulveda B, Nogues J, Kreft ME, Petan T, Kralj S, Makovec D. The efficient magneto-mechanical actuation of cancer cells using a very low concentration of non-interacting ferrimagnetic hexaferrite nanoplatelets. J Colloid Interface Sci 2024; 657:778-787. [PMID: 38081112 DOI: 10.1016/j.jcis.2023.12.019] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/24/2023] [Accepted: 12/03/2023] [Indexed: 01/02/2024]
Abstract
Magneto-mechanical actuation (MMA) using the low-frequency alternating magnetic fields (AMFs) of magnetic nanoparticles internalized into cancer cells can be used to irreparably damage these cells. However, nanoparticles in cells usually agglomerate, thus greatly augmenting the delivered force compared to single nanoparticles. Here, we demonstrate that MMA also decreases the cell viability, with the MMA mediated by individual, non-interacting nanoparticles. The effect was demonstrated with ferrimagnetic (i.e., permanently magnetic) barium-hexaferrite nanoplatelets (NPLs, ∼50 nm wide and 3 nm thick) with a unique, perpendicular orientation of the magnetization. Two cancer-cell lines (MDA-MB-231 and HeLa) are exposed to the NPLs in-vitro under different cell-culture conditions and actuated with a uniaxial AMF. TEM analyses show that only a small number of NPLs internalize in the cells, always situated in membrane-enclosed compartments of the endosomal-lysosomal system. Most compartments contain 1-2 NPLs and only seldom are the NPLs found in small groups, but never in close contact or mutually oriented. Even at low concentrations, the single NPLs reduce the cell viability when actuated with AMFs, which is further increased when the cells are in starvation conditions. These results pave the way for more efficient in-vivo MMA at very low particle concentrations.
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Affiliation(s)
- Tanja Goršak
- Department for Materials Synthesis, Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia; Jožef Stefan International Postgraduate School, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Eva Jarc Jovičić
- Jožef Stefan International Postgraduate School, Jamova 39, SI-1000 Ljubljana, Slovenia; Department of Molecular and Biomedical Sciences, Jožef Stefan Institute, Jamova cesta 39, Ljubljana SI-1000, Slovenia
| | - Larisa Tratnjek
- University of Ljubljana, Faculty of Medicine, Institute of Cell Biology, Vrazov trg 2, 1000 Ljubljana, Slovenia
| | - Igor Križaj
- Department of Molecular and Biomedical Sciences, Jožef Stefan Institute, Jamova cesta 39, Ljubljana SI-1000, Slovenia
| | - Borja Sepulveda
- Instituto de Microelectronica de Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Josep Nogues
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, E-08193 Barcelona, Spain; ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Mateja Erdani Kreft
- University of Ljubljana, Faculty of Medicine, Institute of Cell Biology, Vrazov trg 2, 1000 Ljubljana, Slovenia
| | - Toni Petan
- Department of Molecular and Biomedical Sciences, Jožef Stefan Institute, Jamova cesta 39, Ljubljana SI-1000, Slovenia
| | - Slavko Kralj
- Department for Materials Synthesis, Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Darko Makovec
- Department for Materials Synthesis, Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia; Jožef Stefan International Postgraduate School, Jamova 39, SI-1000 Ljubljana, Slovenia.
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3
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Fluksman A, Lafuente A, Braunstein R, Steinberg E, Friedman N, Yekhin Z, Roca AG, Nogues J, Hazan R, Sepulveda B, Benny O. Modular Drug-Loaded Nanocapsules with Metal Dome Layers as a Platform for Obtaining Synergistic Therapeutic Biological Activities. ACS Appl Mater Interfaces 2023; 15:50330-50343. [PMID: 37861446 PMCID: PMC10623511 DOI: 10.1021/acsami.3c07188] [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] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 09/29/2023] [Indexed: 10/21/2023]
Abstract
Multifunctional drug-loaded polymer-metal nanocapsules have attracted increasing attention in drug delivery due to their multifunctional potential endowed by drug activity and response to physicochemical stimuli. Current chemical synthesis methods of polymer/metal capsules require specific optimization of the different components to produce particles with precise properties, being particularly complex for Janus structures combining polymers and ferromagnetic and highly reactive metals. With the aim to generate tunable synergistic nanotherapeutic actuation with enhanced drug effects, here we demonstrate a versatile hybrid chemical/physical fabrication strategy to incorporate different functional metals with tailored magnetic, optical, or chemical properties on solid drug-loaded polymer nanoparticles. As archetypical examples, we present poly(lactic-co-glycolic acid) (PLGA) nanoparticles (diameters 100-150 nm) loaded with paclitaxel, indocyanine green, or erythromycin that are half-capped by either Fe, Au, or Cu layers, respectively, with application in three biomedical models. The Fe coating on paclitaxel-loaded nanocapsules permitted efficient magnetic enhancement of the cancer spheroid assembly, with 40% reduction of the cross-section area after 24 h, as well as a higher paclitaxel effect. In addition, the Fe-PLGA nanocapsules enabled external contactless manipulation of multicellular cancer spheroids with a speed of 150 μm/s. The Au-coated and indocyanine green-loaded nanocapsules demonstrated theranostic potential and enhanced anticancer activity in vitro and in vivo due to noninvasive fluorescence imaging with long penetration near-infrared (NIR) light and simultaneous photothermal-photodynamic actuation, showing a 3.5-fold reduction in the tumor volume growth with only 5 min of NIR illumination. Finally, the Cu-coated erythromycin-loaded nanocapsules exhibited enhanced antibacterial activity with a 2.5-fold reduction in the MIC50 concentration with respect to the free or encapsulated drug. Altogether, this technology can extend a nearly unlimited combination of metals, polymers, and drugs, thus enabling the integration of magnetic, optical, and electrochemical properties in drug-loaded nanoparticles to externally control and improve a wide range of biomedical applications.
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Affiliation(s)
- Arnon Fluksman
- Institute
for Drug Research (IDR), School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
| | - Aritz Lafuente
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, 08193 Bellaterra, Barcelona, Spain
- Universitat
Autònoma de Barcelona, Campus UAB, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Ron Braunstein
- Institute
of Biomedical and Oral Research (IBOR), Faculty of Dental Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
| | - Eliana Steinberg
- Institute
for Drug Research (IDR), School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
| | - Nethanel Friedman
- Institute
for Drug Research (IDR), School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
| | - Zhanna Yekhin
- Department
of Bone Marrow Transplantation and Cancer Immunotherapy, Hadassah
Medical Center, The Faculty of Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
| | - Alejandro G. Roca
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Josep Nogues
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, 08193 Bellaterra, Barcelona, Spain
- ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Ronen Hazan
- Institute
of Biomedical and Oral Research (IBOR), Faculty of Dental Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
| | - Borja Sepulveda
- Instituto
de Microelectronica de Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Ofra Benny
- Institute
for Drug Research (IDR), School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
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4
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Zhao Y, Descamps J, Al Hoda Al Bast N, Duque M, Esteve J, Sepulveda B, Loget G, Sojic N. All-Optical Electrochemiluminescence. J Am Chem Soc 2023; 145:17420-17426. [PMID: 37498003 DOI: 10.1021/jacs.3c05856] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Electrochemiluminescence (ECL) is widely employed for medical diagnosis and imaging. Despite its remarkable analytical performances, the technique remains intrinsically limited by the essential need for an external power supply and electrical wires for electrode connections. Here, we report an electrically autonomous solution leading to a paradigm change by designing a fully integrated all-optical wireless monolithic photoelectrochemical device based on a nanostructured Si photovoltaic junction modified with catalytic coatings. Under illumination with light ranging from visible to near-infrared, photogenerated holes induce the oxidation of the ECL reagents and thus the emission of visible ECL photons. The blue ECL emission is easily viewed with naked eyes and recorded with a smartphone. A new light emission scheme is thus introduced where the ECL emission energy (2.82 eV) is higher than the excitation energy (1.18 eV) via an intermediate electrochemical process. In addition, the mapping of the photoelectrochemical activity by optical microscopy reveals the minority carrier interfacial transfer mechanism at the nanoscale. This breakthrough provides an all-optical strategy for generalizing ECL without the need for electrochemical setups, electrodes, wiring constraints, and specific electrochemical knowledge. This simplest ECL configuration reported so far opens new opportunities to develop imaging and wireless bioanalytical systems such as portable point-of-care sensing devices.
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Affiliation(s)
- Yiran Zhao
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR6226, Rennes 35000, France
| | - Julie Descamps
- University of Bordeaux, Bordeaux INP, ISM, UMR CNRS 5255, Pessac 33607, France
| | - Nour Al Hoda Al Bast
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Barcelona 08193, Spain
| | - Marcos Duque
- Instituto de Microelectrónica de Barcelona (IMB-CNM, CSIC), Barcelona 08193, Spain
| | - Jaume Esteve
- Instituto de Microelectrónica de Barcelona (IMB-CNM, CSIC), Barcelona 08193, Spain
| | - Borja Sepulveda
- Instituto de Microelectrónica de Barcelona (IMB-CNM, CSIC), Barcelona 08193, Spain
| | - Gabriel Loget
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR6226, Rennes 35000, France
- Institute of Energy and Climate Research, Fundamental Electrochemistry (IEK-9), Forschungszentrum Jülich GmbH, Jülich 52425, Germany
| | - Neso Sojic
- University of Bordeaux, Bordeaux INP, ISM, UMR CNRS 5255, Pessac 33607, France
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5
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Fluksman A, Lafuente A, Li Z, Sort J, Lope-Piedrafita S, Esplandiu MJ, Nogues J, Roca AG, Benny O, Sepulveda B. Efficient Tumor Eradication at Ultralow Drug Concentration via Externally Controlled and Boosted Metallic Iron Magnetoplasmonic Nanocapsules. ACS Nano 2023; 17:1946-1958. [PMID: 36468629 PMCID: PMC9933591 DOI: 10.1021/acsnano.2c05733] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 11/28/2022] [Indexed: 05/20/2023]
Abstract
With the aim to locally enhance the efficacy of cancer nanotherapies, here we present metal iron based magnetoplasmonic drug-loaded nanocapsules (MAPSULES), merging powerful external magnetic concentration in the tumor and efficient photothermal actuation to locally boost the drug therapeutic action at ultralow drug concentrations. The MAPSULES are composed of paclitaxel-loaded polylactic-co-glycolic acid (PLGA) nanoparticles partially coated by a nanodome shape iron/silica semishell. The iron semishell has been designed to present a ferromagnetic vortex for incorporating a large quantity of ferromagnetic material while maintaining high colloidal stability. The large iron semishell provides very strong magnetic manipulation via magnetophoretic forces, enabling over 10-fold higher trapping efficiency in microfluidic channels than typical superparamagnetic iron oxide nanoparticles. Moreover, the iron semishell exhibits highly damped plasmonic behavior, yielding intense broadband absorbance in the near-infrared biological windows and photothermal efficiency similar to the best plasmonic nanoheaters. The in vivo therapeutic assays in a mouse xenograft tumor model show a high amplification of the therapeutic effects by combining magnetic concentration and photothermal actuation in the tumor, leading to a complete eradication of the tumors at ultralow nanoparticle and drug concentration (equivalent to only 1 mg/kg PLGA nanoparticles containing 8 μg/kg of paclitaxel, i.e., 100-500-fold lower than the therapeutic window of the free and PLGA encapsulated drug and 13-3000-fold lower than current nanotherapies combining paclitaxel and light actuation). These results highlight the strength of this externally controlled and amplified therapeutic approach, which could be applied to locally boost a wide variety of drugs for different diseases.
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Affiliation(s)
- Arnon Fluksman
- Institute
for Drug Research (IDR), School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 9190501Jerusalem, Israel
| | - Aritz Lafuente
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST,
Campus UAB, 08193 Bellaterra, Barcelona, Spain
- Universitat
Autònoma de Barcelona, Campus UAB, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Zhi Li
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST,
Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Jordi Sort
- Universitat
Autònoma de Barcelona, Campus UAB, 08193 Cerdanyola del Vallès, Barcelona, Spain
- ICREA, Pg. Lluís Companys 23, 08010Barcelona, Spain
| | - Silvia Lope-Piedrafita
- Universitat
Autònoma de Barcelona, Campus UAB, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Maria José Esplandiu
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST,
Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Josep Nogues
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST,
Campus UAB, 08193 Bellaterra, Barcelona, Spain
- ICREA, Pg. Lluís Companys 23, 08010Barcelona, Spain
| | - Alejandro G. Roca
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST,
Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Ofra Benny
- Institute
for Drug Research (IDR), School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 9190501Jerusalem, Israel
| | - Borja Sepulveda
- Instituto
de Microelectronica de Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Bellaterra, Barcelona, Spain
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6
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Esplandiu MJ, Zhang K, Fraxedas J, Sepulveda B, Reguera D. Unraveling the Operational Mechanisms of Chemically Propelled Motors with Micropumps. Acc Chem Res 2018; 51:1921-1930. [PMID: 30192137 DOI: 10.1021/acs.accounts.8b00241] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The development of effective autonomous micro- and nanomotors relies on controlling fluid motion at interfaces. One of the main challenges in the engineering of such artificial machines is the quest for efficient mechanisms to power them without using external driving forces. In the past decade, there has been an important increase of man-made micro- and nanomotors fueled by self-generated physicochemical gradients. Impressive proofs of concept of multitasking machines have been reported demonstrating their capabilities for a plethora of applications. While the progress toward applications is promising, there are still open questions on fundamental physicochemical aspects behind the mechanical actuation, which require more experimental and theoretical efforts. These efforts are not merely academic but will open the door for an efficient and practical implementation of such promising devices. In this Account, we focus on chemically driven motors whose motion is the result of a complex interplay of chemical reactions and (electro)hydrodynamic phenomena. A reliable study of these processes is rather difficult with mobile objects like swimming motors. However, pumps, which are the immobilized motor counterparts, emerge as simple manufacturing and well-defined platforms for a better experimental probing of the mechanisms and key parameters controlling the actuation. Here we review some recent studies using a new methodology that has turned out to be very helpful to characterize micropump chemomechanics. The aim was to identify the redox role of the motor components, to map the chemical reaction, and to quantify the relevant electrokinetic parameters (e.g., electric field and fluid flow). This was achieved by monitoring the velocity of differently charged tracers and by fluorescence imaging of the chemical species involved in the chemical reaction, for example, proton gradients. We applied these techniques to different systems of interest. First, we probed bimetallic pumps as counterparts of the pioneering bimetallic swimmers. We corroborated that fluid motion was due to a self-generated electro-osmotic mechanism driven by the redox decomposition of H2O2. In addition, we analyzed by simulations the key parameters that yield an optimized operation. Moreover, we accomplished a better assessment of the importance of surface chemistry on the metal electrochemical response, highlighting its relevance in controlling the redox role of the metals and motion direction. Second, we focused on metallic and semiconductor micropumps to analyze light-controlled motion mechanisms through photoelectrochemical decomposition of fuels. These pumps were driven by visible light and could operate using just water as fuel. In these systems, we found a very interesting competition between two different mechanisms for fluid propulsion, namely, light-activated electro-osmosis and light-insensitive diffusio-osmosis, stemming from different chemical pathways in the fuel decomposition. In this case, surface roughness becomes a pivotal parameter to enhance or depress one mechanism over the other. These examples demonstrate that pumps are practical platforms to explore operating mechanisms and to quantify their performance. Additionally, they are suitable systems to test novel fuels or motor materials. This knowledge is extensible to swimmers providing not only fundamental understanding of their locomotion mechanisms but also useful clues for their design and optimization.
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Affiliation(s)
- Maria Jose Esplandiu
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Kuan Zhang
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Jordi Fraxedas
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Borja Sepulveda
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - David Reguera
- Departament de Física de la Matèria Condensada, Universitat de Barcelona, C/Martí i Franquès 1, 08028 Barcelona, Spain
- Universitat de Barcelona, Institute of Complex Systems (UBICS), C/Martí i Franquès 1, 08028 Barcelona, Spain
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7
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Li Z, Lopez-Ortega A, Aranda-Ramos A, Tajada JL, Sort J, Nogues C, Vavassori P, Nogues J, Sepulveda B. Simultaneous Local Heating/Thermometry Based on Plasmonic Magnetochromic Nanoheaters. Small 2018; 14:e1800868. [PMID: 29761629 DOI: 10.1002/smll.201800868] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 04/04/2018] [Indexed: 05/24/2023]
Abstract
A crucial challenge in nanotherapies is achieving accurate and real-time control of the therapeutic action, which is particularly relevant in local thermal therapies to minimize healthy tissue damage and necrotic cell deaths. Here, a nanoheater/thermometry concept is presented based on magnetoplasmonic (Co/Au or Fe/Au) nanodomes that merge exceptionally efficient plasmonic heating and simultaneous highly sensitive detection of the temperature variations. The temperature detection is based on precise optical monitoring of the magnetic-induced rotation of the nanodomes in solution. It is shown that the phase lag between the optical signal and the driving magnetic field can be used to detect viscosity variations around the nanodomes with unprecedented accuracy (detection limit 0.0016 mPa s, i.e., 60-fold smaller than state-of-the-art plasmonic nanorheometers). This feature is exploited to monitor the viscosity reduction induced by optical heating in real-time, even in highly inhomogeneous cell dispersions. The magnetochromic nanoheater/thermometers show higher optical stability, much higher heating efficiency and similar temperature detection limits (0.05 °C) compared to state-of-the art luminescent nanothermometers. The technological interest is also boosted by the simpler and lower cost temperature detection system, and the cost effectiveness and scalability of the nanofabrication process, thereby highlighting the biomedical potential of this nanotechnology.
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Affiliation(s)
- Zhi Li
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), Consejo Superior de Investigaciones Científicas (CSIC) and Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193, Barcelona, Spain
- Departament de Física, Facultat de Ciències, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
| | | | - Antonio Aranda-Ramos
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Facultat de Biociències, Universitat Autónoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
| | - José Luis Tajada
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), Consejo Superior de Investigaciones Científicas (CSIC) and Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Jordi Sort
- Departament de Física, Facultat de Ciències, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluís Companys 23, 08010, Barcelona, Spain
| | - Carme Nogues
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Facultat de Biociències, Universitat Autónoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
| | - Paolo Vavassori
- CIC nanoGUNE, E-20018, Donostia-San Sebastian, Spain
- IKERBASQUE, Basque Foundation for Science, E-40013, Bilbao, Spain
| | - Josep Nogues
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), Consejo Superior de Investigaciones Científicas (CSIC) and Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluís Companys 23, 08010, Barcelona, Spain
| | - Borja Sepulveda
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), Consejo Superior de Investigaciones Científicas (CSIC) and Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193, Barcelona, Spain
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8
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Zhang K, Fraxedas J, Sepulveda B, Esplandiu MJ. Photochemically Activated Motors: From Electrokinetic to Diffusion Motion Control. ACS Appl Mater Interfaces 2017; 9:44948-44953. [PMID: 29199814 DOI: 10.1021/acsami.7b15855] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Self-propelled micro/nanomotors that can transform chemical energy from the surrounding environment into mechanical motion are cutting edge nanotechnologies with potential applications in biomedicine and environmental remediation. These applications require full understanding of the propulsion mechanisms to improve the performance and controllability of the motors. In this work, we demonstrate that there are two competing chemomechanical mechanisms at semiconductor/metal (Si/Pt) micromotors in a pump configuration under visible light exposure. The first propulsion mechanism is driven by an electro-osmotic process stemmed from a photoactivation reaction mediated by H2O2, which takes place in two separated redox reactions at the Si and Pt interfaces. One reaction involves the oxidation of H2O2 at the silicon side, and the other the H2O2 reduction at the metal side. The second mechanism is not light responsive and is triggered by the redox decomposition of H2O2 exclusively at the Pt surface. We show that it is possible to enhance/suppress one mechanism over the other by tuning the surface roughness of the micromotor metal. More specifically, the actuation mechanism can be switched from light-controlled electrokinetics to light-insensitive diffusio-osmosis by only increasing the metal surface roughness. The different actuation mechanisms yield strikingly different fluid flow velocities, electric fields, and light sensitivities. Consequently, these findings are very relevant and can have a remarkable impact on the design and optimization of photoactivated catalytic devices and, in general, on bimetallic or insulating-metallic motors.
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Affiliation(s)
- Kuan Zhang
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST , Campus UAB, Bellaterra, 08193 Barcelona, Spain
- Universitat Autònoma de Barcelona (UAB) , Bellaterra E-08193, Spain
| | - Jordi Fraxedas
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST , Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Borja Sepulveda
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST , Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Maria J Esplandiu
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST , Campus UAB, Bellaterra, 08193 Barcelona, Spain
- Universitat Autònoma de Barcelona (UAB) , Bellaterra E-08193, Spain
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9
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Solis-Tinoco V, Marquez S, Sepulveda B, Lechuga LM. Fabrication of well-ordered silicon nanopillars embedded in a microchannel via metal-assisted chemical etching: a route towards an opto-mechanical biosensor. RSC Adv 2016. [DOI: 10.1039/c6ra15485a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Nanofabrication methodology that integrates the creation of silicon nanopillars inside a microfluidic channel which has significant implications for the achievement of new optomechanical biosensors.
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Affiliation(s)
- V. Solis-Tinoco
- Nanobiosensors and Bioanalytical Applications Group
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)
- CSIC
- The Barcelona Institute of Science and Technology
- Bellaterra
| | - S. Marquez
- Nanobiosensors and Bioanalytical Applications Group
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)
- CSIC
- The Barcelona Institute of Science and Technology
- Bellaterra
| | - B. Sepulveda
- Nanobiosensors and Bioanalytical Applications Group
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)
- CSIC
- The Barcelona Institute of Science and Technology
- Bellaterra
| | - L. M. Lechuga
- Nanobiosensors and Bioanalytical Applications Group
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)
- CSIC
- The Barcelona Institute of Science and Technology
- Bellaterra
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10
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Otte MA, Solis-Tinoco V, Prieto P, Borrisé X, Lechuga LM, González MU, Sepulveda B. Tailored Height Gradients in Vertical Nanowire Arrays via Mechanical and Electronic Modulation of Metal-Assisted Chemical Etching. Small 2015; 11:4201-4208. [PMID: 26033973 DOI: 10.1002/smll.201500175] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 04/26/2015] [Indexed: 06/04/2023]
Abstract
In current top-down nanofabrication methodologies the design freedom is generally constrained to the two lateral dimensions, and is only limited by the resolution of the employed nanolithographic technique. However, nanostructure height, which relies on certain mask-dependent material deposition or etching techniques, is usually uniform, and on-chip variation of this parameter is difficult and generally limited to very simple patterns. Herein, a novel nanofabrication methodology is presented, which enables the generation of high aspect-ratio nanostructure arrays with height gradients in arbitrary directions by a single and fast etching process. Based on metal-assisted chemical etching using a catalytic gold layer perforated with nanoholes, it is demonstrated how nanostructure arrays with directional height gradients can be accurately tailored by: (i) the control of the mass transport through the nanohole array, (ii) the mechanical properties of the perforated metal layer, and (iii) the conductive coupling to the surrounding gold film to accelerate the local electrochemical etching process. The proposed technique, enabling 20-fold on-chip variation of nanostructure height in a spatial range of a few micrometers, offers a new tool for the creation of novel types of nano-assemblies and metamaterials with interesting technological applications in fields such as nanophotonics, nanophononics, microfluidics or biomechanics.
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Affiliation(s)
- M A Otte
- NanoBiosensors and Bioanalytical Applications Group, Institut Catala de Nanociencia i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC) & CIBER-BBN, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - V Solis-Tinoco
- NanoBiosensors and Bioanalytical Applications Group, Institut Catala de Nanociencia i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC) & CIBER-BBN, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - P Prieto
- IMM-Instituto de Microelectrónica de Madrid (CNM-CSIC), Isaac Newton 8, PTM, 28760, Tres Cantos, Madrid, Spain
| | - X Borrisé
- Nanolithography Laboratory, Institut Catala de Nanociencia i Nanotecnologia (ICN2) & CNM-IMB (CSIC), Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - L M Lechuga
- NanoBiosensors and Bioanalytical Applications Group, Institut Catala de Nanociencia i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC) & CIBER-BBN, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - M U González
- IMM-Instituto de Microelectrónica de Madrid (CNM-CSIC), Isaac Newton 8, PTM, 28760, Tres Cantos, Madrid, Spain
| | - B Sepulveda
- Magnetic Nanostructures Group, Institut Catala de Nanociencia i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC), Campus UAB, Bellaterra, 08193, Barcelona, Spain
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Soler M, Mesa-Antunez P, Estevez MC, Ruiz-Sanchez AJ, Otte MA, Sepulveda B, Collado D, Mayorga C, Torres MJ, Perez-Inestrosa E, Lechuga LM. Highly sensitive dendrimer-based nanoplasmonic biosensor for drug allergy diagnosis. Biosens Bioelectron 2015; 66:115-23. [DOI: 10.1016/j.bios.2014.10.081] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 10/20/2014] [Accepted: 10/21/2014] [Indexed: 01/14/2023]
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Carrascosa LG, Sina AAI, Palanisamy R, Sepulveda B, Otte MA, Rauf S, Shiddiky MJA, Trau M. Molecular inversion probe-based SPR biosensing for specific, label-free and real-time detection of regional DNA methylation. Chem Commun (Camb) 2014; 50:3585-8. [DOI: 10.1039/c3cc49607d] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
DNA regional methylation can be detected in real-time and label-free using surface plasmon resonance biosensing coupled to molecular inversion probe based amplification.
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Affiliation(s)
- Laura G. Carrascosa
- Australian Institute for Bioengineering and Nanotechnology (AIBN)
- The University of Queensland
- Brisbane, Australia
| | - Abu Ali Ibn Sina
- Australian Institute for Bioengineering and Nanotechnology (AIBN)
- The University of Queensland
- Brisbane, Australia
| | - Ramkumar Palanisamy
- Australian Institute for Bioengineering and Nanotechnology (AIBN)
- The University of Queensland
- Brisbane, Australia
| | - Borja Sepulveda
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)
- Campus UAB 08193 Bellaterra, Spain
| | - Marinus A. Otte
- Catalan Institute of Nanoscience and Nanotechnology (ICN2)
- Campus UAB 08193 Bellaterra, Spain
| | - Sakandar Rauf
- Australian Institute for Bioengineering and Nanotechnology (AIBN)
- The University of Queensland
- Brisbane, Australia
| | - Muhamad J. A. Shiddiky
- Australian Institute for Bioengineering and Nanotechnology (AIBN)
- The University of Queensland
- Brisbane, Australia
| | - Matt Trau
- Australian Institute for Bioengineering and Nanotechnology (AIBN)
- The University of Queensland
- Brisbane, Australia
- School of Chemistry and Molecular Biosciences
- University of Queensland
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Estevez MC, Otte MA, Sepulveda B, Lechuga LM. Trends and challenges of refractometric nanoplasmonic biosensors: a review. Anal Chim Acta 2013; 806:55-73. [PMID: 24331040 DOI: 10.1016/j.aca.2013.10.048] [Citation(s) in RCA: 139] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 10/22/2013] [Accepted: 10/27/2013] [Indexed: 01/28/2023]
Abstract
Motivated by potential benefits such as sensor miniaturization, multiplexing opportunities and higher sensitivities, refractometric nanoplasmonic biosensing has profiled itself in a short time span as an interesting alternative to conventional Surface Plasmon Resonance (SPR) biosensors. This latter conventional sensing concept has been subjected during the last decades to strong commercialization, thereby strongly leaning on well-developed thin-film surface chemistry protocols. Not surprisingly, the examples found in literature based on this sensing concept are generally characterized by extensive analytical studies of relevant clinical and diagnostic problems. In contrast, the more novel Localized Surface Plasmon Resonance (LSPR) alternative finds itself in a much earlier, and especially, more fundamental stage of development. Driven by new fabrication methodologies to create nanostructured substrates, published work typically focuses on the novelty of the presented material, its optical properties and its use - generally limited to a proof-of-concept - as a label-free biosensing scheme. Given the different stages of development both SPR and LSPR sensors find themselves in, it becomes apparent that providing a comparative analysis of both concepts is not a trivial task. Nevertheless, in this review we make an effort to provide an overview that illustrates the progress booked in both fields during the last five years. First, we discuss the most relevant advances in SPR biosensing, including interesting analytical applications, together with different strategies that assure improvements in performance, throughput and/or integration. Subsequently, the remaining part of this work focuses on the use of nanoplasmonic sensors for real label-free biosensing applications. First, we discuss the motivation that serves as a driving force behind this research topic, together with a brief summary that comprises the main fabrication methodologies used in this field. Next, the sensing performance of LSPR sensors is examined by analyzing different parameters that can be invoked in order to quantitatively assess their overall sensing performance. Two aspects are highlighted that turn out to be especially important when trying to maximize their sensing performance, being (1) the targeted functionalization of the electromagnetic hotspots of the nanostructures, and (2) overcoming inherent negative influence that stem from the presence of a high refractive index substrate that supports the nanostructures. Next, although few in numbers, an overview is given of the most exhaustive and diagnostically relevant LSPR sensing assays that have been recently reported in literature, followed by examples that exploit inherent LSPR characteristics in order to create highly integrated and high-throughput optical biosensors. Finally, we discuss a series of considerations that, in our opinion, should be addressed in order to bring the realization of a stand-alone LSPR biosensor with competitive levels of sensitivity, robustness and integration (when compared to a conventional SPR sensor) much closer to reality.
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Affiliation(s)
- M-Carmen Estevez
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC & CIBER-BBN, ICN2 Building Campus UAB, 08193 Bellaterra, Barcelona, Spain.
| | - Marinus A Otte
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC & CIBER-BBN, ICN2 Building Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Borja Sepulveda
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC & CIBER-BBN, ICN2 Building Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Laura M Lechuga
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC & CIBER-BBN, ICN2 Building Campus UAB, 08193 Bellaterra, Barcelona, Spain
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Aili D, Gryko P, Sepulveda B, Dick JAG, Kirby N, Heenan R, Baltzer L, Liedberg B, Ryan MP, Stevens MM. Polypeptide folding-mediated tuning of the optical and structural properties of gold nanoparticle assemblies. Nano Lett 2011; 11:5564-5573. [PMID: 22047629 DOI: 10.1021/nl203559s] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Responsive hybrid nanomaterials with well-defined properties are of significant interest for the development of biosensors with additional applications in tissue engineering and drug delivery. Here, we present a detailed characterization using UV-vis spectroscopy and small angle X-ray scattering of a hybrid material comprised of polypeptide-decorated gold nanoparticles with highly controllable assembly properties. The assembly is triggered by a folding-dependent bridging of the particles mediated by the heteroassociation of immobilized helix-loop-helix polypeptides and a complementary nonlinear polypeptide present in solution. The polypeptides are de novo designed to associate and fold into a heterotrimeric complex comprised of two disulfide-linked four-helix bundles. The particles form structured assemblies with a highly defined interparticle gap (4.8±0.4 nm) that correlates to the size of the folded polypeptides. Transitions in particle aggregation dynamics, mass-fractal dimensions and ordering, as a function of particle size and the concentration of the bridging polypeptide, are observed; these have significant effects on the optical properties of the assemblies. The assembly and ordering of the particles are highly complex processes that are affected by a large number of variables including the number of polypeptides bridging the particles and the particle mobility within the aggregates. A fundamental understanding of these processes is of paramount interest for the development of novel hybrid nanomaterials with tunable structural and optical properties and for the optimization of nanoparticle-based colorimetric biodetection strategies.
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Affiliation(s)
- Daniel Aili
- Department of Materials, Institute for Biomedical Engineering, Imperial College London, Exhibition Road, SW7 2AZ London, United Kingdom
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Kretschmer RR, Sepulveda B, Almazan A, Gamboa F. Intradermal reactions to an antigen (histolyticin) obtained from axenically cultivated Entamoeba histolytica. Trop Geogr Med 1972; 24:275-81. [PMID: 4344186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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17
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Alvarez Cordero R, Elizondo L, Ramirez Degollado J, Sepulveda B, Landa L. [Stomach cancer. Study of 90 cases]. Prensa Med Mex 1967; 32:342-9. [PMID: 5633863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Landa L, Godinez C, Jurado J, Sepulveda B. [Cancer of the gallbladder and biliary tract]. Prensa Med Mex 1967; 32:78-82. [PMID: 5633834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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