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Grasso G, Colella F, Forciniti S, Onesto V, Iuele H, Siciliano AC, Carnevali F, Chandra A, Gigli G, Del Mercato LL. Fluorescent nano- and microparticles for sensing cellular microenvironment: past, present and future applications. NANOSCALE ADVANCES 2023; 5:4311-4336. [PMID: 37638162 PMCID: PMC10448310 DOI: 10.1039/d3na00218g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 06/13/2023] [Indexed: 08/29/2023]
Abstract
The tumor microenvironment (TME) demonstrates distinct hallmarks, including acidosis, hypoxia, reactive oxygen species (ROS) generation, and altered ion fluxes, which are crucial targets for early cancer biomarker detection, tumor diagnosis, and therapeutic strategies. Various imaging and sensing techniques have been developed and employed in both research and clinical settings to visualize and monitor cellular and TME dynamics. Among these, ratiometric fluorescence-based sensors have emerged as powerful analytical tools, providing precise and sensitive insights into TME and enabling real-time detection and tracking of dynamic changes. In this comprehensive review, we discuss the latest advancements in ratiometric fluorescent probes designed for the optical mapping of pH, oxygen, ROS, ions, and biomarkers within the TME. We elucidate their structural designs and sensing mechanisms as well as their applications in in vitro and in vivo detection. Furthermore, we explore integrated sensing platforms that reveal the spatiotemporal behavior of complex tumor cultures, highlighting the potential of high-resolution imaging techniques combined with computational methods. This review aims to provide a solid foundation for understanding the current state of the art and the future potential of fluorescent nano- and microparticles in the field of cellular microenvironment sensing.
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Affiliation(s)
- Giuliana Grasso
- Institute of Nanotechnology, National Research Council (CNR-NANOTEC) c/o Campus Ecotekne, via Monteroni 73100 Lecce Italy
| | - Francesco Colella
- Institute of Nanotechnology, National Research Council (CNR-NANOTEC) c/o Campus Ecotekne, via Monteroni 73100 Lecce Italy
- Department of Mathematics and Physics ''Ennio De Giorgi", University of Salento c/o Campus Ecotekne, via Monteroni 73100 Lecce Italy
| | - Stefania Forciniti
- Institute of Nanotechnology, National Research Council (CNR-NANOTEC) c/o Campus Ecotekne, via Monteroni 73100 Lecce Italy
| | - Valentina Onesto
- Institute of Nanotechnology, National Research Council (CNR-NANOTEC) c/o Campus Ecotekne, via Monteroni 73100 Lecce Italy
| | - Helena Iuele
- Institute of Nanotechnology, National Research Council (CNR-NANOTEC) c/o Campus Ecotekne, via Monteroni 73100 Lecce Italy
| | - Anna Chiara Siciliano
- Institute of Nanotechnology, National Research Council (CNR-NANOTEC) c/o Campus Ecotekne, via Monteroni 73100 Lecce Italy
- Department of Mathematics and Physics ''Ennio De Giorgi", University of Salento c/o Campus Ecotekne, via Monteroni 73100 Lecce Italy
| | - Federica Carnevali
- Institute of Nanotechnology, National Research Council (CNR-NANOTEC) c/o Campus Ecotekne, via Monteroni 73100 Lecce Italy
- Department of Mathematics and Physics ''Ennio De Giorgi", University of Salento c/o Campus Ecotekne, via Monteroni 73100 Lecce Italy
| | - Anil Chandra
- Centre for Research in Pure and Applied Sciences, Jain (Deemed-to-be-university) Bangalore Karnataka 560078 India
| | - Giuseppe Gigli
- Institute of Nanotechnology, National Research Council (CNR-NANOTEC) c/o Campus Ecotekne, via Monteroni 73100 Lecce Italy
- Department of Mathematics and Physics ''Ennio De Giorgi", University of Salento c/o Campus Ecotekne, via Monteroni 73100 Lecce Italy
| | - Loretta L Del Mercato
- Institute of Nanotechnology, National Research Council (CNR-NANOTEC) c/o Campus Ecotekne, via Monteroni 73100 Lecce Italy
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Xiao C, Izquierdo-Roca V, Rivera-Gil P. Real Time and Spatiotemporal Quantification of pH and H 2O 2 Imbalances with a Multiplex Surface-Enhanced Raman Spectroscopy Nanosensor. ACS MATERIALS AU 2023; 3:164-175. [PMID: 38089722 PMCID: PMC9999477 DOI: 10.1021/acsmaterialsau.2c00069] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/29/2022] [Accepted: 12/29/2022] [Indexed: 06/03/2024]
Abstract
Oxidative stress is involved in many aging-related pathological disorders and is the result of defective cellular management of redox reactions. Particularly, hydrogen peroxide (H2O2), is a major byproduct and a common oxidative stress biomarker. Monitoring its dynamics and a direct correlation to diseases remains a challenge due to the complexity of redox reactions. Sensitivity and specificity are major drawbacks for H2O2 sensors regardless of their readout. Luminiscent boronate-based probes such as 3-mercaptophenylboronic acid (3-MPBA) are emerging as the most effective quantitation tool due to their specificity and sensitivity. Problems associated with these probes are limited intracellular sensing, water solubility, selectivity, and quenching. We have synthesized a boronate-based nanosensor with a surface-enhanced Raman spectroscopy (SERS) readout to solve these challenges. Furthermore, we found out that environmental pH gradients, as found in biological samples, affect the sensitivity of boronate-based sensors. When the sensor is in an alkaline environment, the oxidation of 3-MPBA by H2O2 is more favored than in an acidic environment. This leads to different H2O2 measurements depending on pH. To solve this issue, we synthesized a multiplex nanosensor capable of concomitantly quantifying pH and H2O2. Our nanosensor first measures the local pH and based on this value, provides the amount of H2O2. It seems that this pH-dependent sensitivity effect applies to all boronic acid based probes. We tested the multiplexing ability by quantitatively measuring intra- and extracellular pH and H2O2 dynamics under physiological and pathological conditions on healthy cells and cells in which H+ and/or H2O2 homeostasis has been altered.
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Affiliation(s)
- Can Xiao
- Department
of Medicine and Life Sciences, Universitat
Pompeu Fabra, Carrer Doctor Aiguader 88, 08003 Barcelona, Spain
| | - Victor Izquierdo-Roca
- Catalonia
Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, 08930 Sant Adrià del Besòs-Barcelona, Spain
| | - Pilar Rivera-Gil
- Department
of Medicine and Life Sciences, Universitat
Pompeu Fabra, Carrer Doctor Aiguader 88, 08003 Barcelona, Spain
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Srivastava P, Tavernaro I, Genger C, Welker P, Hübner O, Resch-Genger U. Multicolor Polystyrene Nanosensors for the Monitoring of Acidic, Neutral, and Basic pH Values and Cellular Uptake Studies. Anal Chem 2022; 94:9656-9664. [PMID: 35731967 DOI: 10.1021/acs.analchem.2c00944] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A first tricolor fluorescent pH nanosensor is presented, which was rationally designed from biocompatible carboxylated polystyrene nanoparticles and two analyte-responsive molecular fluorophores. Its fabrication involved particle staining with a blue-red-emissive dyad, consisting of a rhodamine moiety responsive to acidic pH values and a pH-inert quinoline fluorophore, followed by the covalent attachment of a fluorescein dye to the particle surface that signals neutral and basic pH values with a green fluorescence. These sensor particles change their fluorescence from blue to red and green, depending on the pH and excitation wavelength, and enable ratiometric pH measurements in the pH range of 3.0-9.0. The localization of the different sensor dyes in the particle core and at the particle surface was confirmed with fluorescence microscopy utilizing analogously prepared polystyrene microparticles. To show the application potential of these polystyrene-based multicolor sensor particles, fluorescence microscopy studies with a human A549 cell line were performed, which revealed the cellular uptake of the pH nanosensor and the differently colored emissions in different cell organelles, that is, compartments of the endosomal-lysosomal pathway. Our results demonstrate the underexplored potential of biocompatible polystyrene particles for multicolor and multianalyte sensing and bioimaging utilizing hydrophobic and/or hydrophilic stimuli-responsive luminophores.
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Affiliation(s)
- Priyanka Srivastava
- Division Biophotonics, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Straße 11, 12489 Berlin, Germany
| | - Isabella Tavernaro
- Division Biophotonics, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Straße 11, 12489 Berlin, Germany
| | - Claudia Genger
- nanoPET Pharma GmbH, Robert-Koch-Platz 4, Luisencarée, 10115 Berlin, Germany
| | - Pia Welker
- nanoPET Pharma GmbH, Robert-Koch-Platz 4, Luisencarée, 10115 Berlin, Germany
| | - Oskar Hübner
- Division Biophotonics, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Straße 11, 12489 Berlin, Germany
| | - Ute Resch-Genger
- Division Biophotonics, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Straße 11, 12489 Berlin, Germany
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Guan X, Meng F, Tan H, Wang X, Li J, Wei J, Ouyang J, Na N. Modular and hierarchical self-assembly of siRNAs into supramolecular nanomaterials for soft and homogeneous siRNA loading and precise and visualized intracellular delivery. Chem Sci 2022; 13:8657-8666. [PMID: 35974751 PMCID: PMC9337723 DOI: 10.1039/d2sc02488h] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 07/02/2022] [Indexed: 12/04/2022] Open
Abstract
siRNA therapeutics are challenged by homogeneous and efficient loading, maintenance of biological activities, and precise, dynamic and monitorable site-release. Herein, supramolecular nanomaterials of WP5⊃G–siRNA were constructed by modular and hierarchical self-assembly of siRNA with guest (3,6-di(thiophen-2-yl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione derivative, G) and host (pillar[5]arene, WP5) molecules in the same system. Demonstrated by experiments and theoretical calculations, WP5⊃G–siRNA was constructed via comprehensive weak interactions including electrostatic, hydrophobic–hydrophilic, host–guest and π–π interactions. Therefore, siRNAs were efficiently loaded, maintaining good stability, bioactivities and biocompatibilities. At pH 6.8, G was protonated to give weak acidic-responsive “turn-on” fluorescent signals, which realized the precise location of cancer sites. This triggered a subsequent delivery and a dynamic release of siRNA in cancer cells under acidic conditions for the entire collapse of WP5⊃G–siRNA by the protonation of both WP5 and G. By both in vitro and in vivo experiments, precise and visualized delivery to cancer sites was achieved to exhibit effective tumour inhibition. This provided an efficient and soft strategy of siRNA therapies and expanded the application of supramolecular nanomaterials in diagnosis and treatment. Supramolecular nanomaterials of WP5⊃G–siRNA were constructed by modular and hierarchical self-assembly of siRNA with guest and host molecules, initiating weak acidic-responsive, precise and visualized intracellular delivery for efficient therapies.![]()
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Affiliation(s)
- Xiaowen Guan
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Fanqi Meng
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Hongwei Tan
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Xiaoni Wang
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Jingjing Li
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Juanjuan Wei
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Jin Ouyang
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Na Na
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
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5
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Alziyadi MO, Denton AR. Osmotic pressure and swelling behavior of ionic microcapsules. J Chem Phys 2021; 155:214904. [PMID: 34879668 DOI: 10.1063/5.0064282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Ionic microcapsules are hollow shells of hydrogel, typically 10-1000 nm in radius, composed of cross-linked polymer networks that become charged and swollen in a good solvent. The ability of microcapsules to swell/deswell in response to changes in external stimuli (e.g., temperature, pH, and ionic strength) suits them to applications, such as drug delivery, biosensing, and catalysis. The equilibrium swelling behavior of ionic microcapsules is determined by a balance of electrostatic and elastic forces. The electrostatic component of the osmotic pressure of a microcapsule-the difference in the pressure between the inside and outside of the particle-plays a vital role in determining the swelling behavior. Within the spherical cell model, we derive exact expressions for the radial pressure profile and for the electrostatic and gel components of the osmotic pressure of a microcapsule, which we compute via Poisson-Boltzmann theory and molecular dynamics simulation. For the gel component, we use the Flory-Rehner theory of polymer networks. By combining the electrostatic and gel components of the osmotic pressure, we compute the equilibrium size of ionic microcapsules as a function of particle concentration, shell thickness, and valence. We predict concentration-driven deswelling at relatively low concentrations at which steric interactions between particles are weak and demonstrate that this response can be attributed to crowding-induced redistribution of counterions. Our approach may help to guide the design and applications of smart stimuli-responsive colloidal particles.
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Affiliation(s)
- Mohammed O Alziyadi
- Department of Physics, North Dakota State University, Fargo, North Dakota 58108-6050, USA
| | - Alan R Denton
- Department of Physics, North Dakota State University, Fargo, North Dakota 58108-6050, USA
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6
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Liu X, Liu Y, Guo Y, Shi W, Sun Y, He Z, Shen Y, Zhang X, Xiao H, Ge D. Metabolizable pH/H 2O 2 dual-responsive conductive polymer nanoparticles for safe and precise chemo-photothermal therapy. Biomaterials 2021; 277:121115. [PMID: 34488118 DOI: 10.1016/j.biomaterials.2021.121115] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/27/2021] [Accepted: 08/28/2021] [Indexed: 01/10/2023]
Abstract
Conductive polymers with high near-infrared absorbance, have attracted considerable attention in the design of intelligent nanomedicines for cancer therapy, especially chemo-photothermal therapy. However, the unknown long-term biosafety of conductive polymers in vivo due to non-degradability hinders their clinic application. Herein, a H2O2-triggered degradable conductive polymer, polyacrylic acid (PAA) stabilized poly(pyrrole-3-COOH) (PAA@PPyCOOH), is fabricated to form nanoparticles with doxorubicin (DOX) for safe and precise chemo-phototherapy. The PAA@PPyCOOH was found to be an ideal photothermal nano-agent with good dispersity, excellent biocompatibility and high photothermal conversion efficiency (56%). After further loading of doxorubicin (DOX), PAA@PPyCOOH@DOX demonstrates outstanding photothermal performance, as well as pH/H2O2 dual-responsive release of DOX in tumors with an acidic and overexpressed H2O2 microenvironment, resulting in superior chemo-photothermal therapeutic effects. The degradation mechanism of PAA@PPyCOOH is proposed to be the ring-opening reaction between the pyrrole-3-COOH unit and H2O2. More importantly, the nanoparticles can be specifically degraded by excess H2O2 in tumor, and the degradation products were confirmed to be excreted via urine and feces. In vivo therapeutic evaluation of chemo-photothermal therapy reveals tumor growth of 4T1 breast cancer model is drastically inhibited and no apparent side-effect is detected, thus indicating substantial potential in clinic application.
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Affiliation(s)
- Xin Liu
- Key Laboratory of Biomedical Engineering of Fujian Province University/Research Center of Biomedical Engineering of Xiamen, Xiamen Key Laboratory of Fire Retardant Materials/Fujian Provincial Key Laboratory of Fire Retardant Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China; Department of Pharmacy, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde, Foshan), Foshan, 528300, PR China
| | - Yang Liu
- Key Laboratory of Biomedical Engineering of Fujian Province University/Research Center of Biomedical Engineering of Xiamen, Xiamen Key Laboratory of Fire Retardant Materials/Fujian Provincial Key Laboratory of Fire Retardant Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Yijun Guo
- Key Laboratory of Biomedical Engineering of Fujian Province University/Research Center of Biomedical Engineering of Xiamen, Xiamen Key Laboratory of Fire Retardant Materials/Fujian Provincial Key Laboratory of Fire Retardant Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Wei Shi
- Key Laboratory of Biomedical Engineering of Fujian Province University/Research Center of Biomedical Engineering of Xiamen, Xiamen Key Laboratory of Fire Retardant Materials/Fujian Provincial Key Laboratory of Fire Retardant Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China.
| | - Yanan Sun
- Key Laboratory of Biomedical Engineering of Fujian Province University/Research Center of Biomedical Engineering of Xiamen, Xiamen Key Laboratory of Fire Retardant Materials/Fujian Provincial Key Laboratory of Fire Retardant Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Zi He
- Key Laboratory of Biomedical Engineering of Fujian Province University/Research Center of Biomedical Engineering of Xiamen, Xiamen Key Laboratory of Fire Retardant Materials/Fujian Provincial Key Laboratory of Fire Retardant Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Yuqing Shen
- Transfusion Department, Woman and Children's Hospital, School of Medicine, Xiamen University, Xiamen, 361003, China
| | - Xiuming Zhang
- Key Laboratory of Biomedical Engineering of Fujian Province University/Research Center of Biomedical Engineering of Xiamen, Xiamen Key Laboratory of Fire Retardant Materials/Fujian Provincial Key Laboratory of Fire Retardant Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Haihua Xiao
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Dongtao Ge
- Key Laboratory of Biomedical Engineering of Fujian Province University/Research Center of Biomedical Engineering of Xiamen, Xiamen Key Laboratory of Fire Retardant Materials/Fujian Provincial Key Laboratory of Fire Retardant Materials, Department of Biomaterials, College of Materials, Xiamen University, Xiamen, 361005, China.
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7
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Zamora-Perez P, Pelaz B, Tsoutsi D, Soliman MG, Parak WJ, Rivera-Gil P. Hyperspectral-enhanced dark field analysis of individual and collective photo-responsive gold-copper sulfide nanoparticles. NANOSCALE 2021; 13:13256-13272. [PMID: 34477734 DOI: 10.1039/d0nr08256b] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We used hyperspectral-enhanced dark field microscopy for studying physicochemical changes in biomaterials by tracking their unique spectral signatures along their pathway through different biological environments typically found in any biomedical application. We correlate these spectral signatures with discrete environmental features causing changes in nanoparticles' physicochemical properties. We use this correlation to track the nanoparticles intracellularly and to assess the impact of these changes on their functionality. We focus on one example of a photothermal nanocomposite, i.e., polymer-coated gold/copper sulfide nanoparticles, because their performance depends on their localized surface plasmon peak, which is highly sensitive to environmental changes. We found spectral differences both in the dependence of time and discrete environmental factors, affecting the range of illumination wavelengths that can be used to activate the functionality of these types of nanoparticles. The presence of proteins (protein corona) and the increase in ionic strength induce a spectral broadening towards the NIR region which we associated with nanoparticles' agglomeration. In acidic environments, such as that of the lysosome, a red shift was also observed in addition to a decrease in the scattering intensity probably associated with a destabilization of the proteins and/or the change in the net charge of the polymer around the nanoparticles. We observed a loss of the photo-excitation potential of those nanoparticles exposed to acidic conditions in the <600 nm spectral rage. In a similar manner, ageing induces a transitioning from a broad multipeak spectrum to a distinct shoulder with time (up to 8 months) with the loss of spectral contribution in the 450-600 nm range. Hence, a fresh preparation of nanoparticles before their application would be recommended for an optimal performance. We highlight the impact of ageing and the acidic environment on the responsiveness of this type of plasmonic nanoparticle. Regardless of the spectral differences found, polymer-coated gold/copper sulfide nanoparticles retained their photothermal response as demonstrated in vitro upon two-photon irradiation. This could be ascribed to their robust geometry provided by the polymer coating. These results should be useful to rationally design plasmonic photothermal probes.
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Affiliation(s)
- Paula Zamora-Perez
- Integrative Biomedical Materials and Nanomedicine Lab, Department of Experimental and Health Sciences (DCEXS), Pompeu Fabra University (UPF), Biomedical Research Park (PRBB), carrer Doctor Aiguader 88, 08003 Barcelona, Spain.
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Synthesis, Characterization, and Optimization of Green Silver Nanoparticles Using Neopestalotiopsis clavispora and Evaluation of Its Antibacterial, Antibiofilm, and Genotoxic Effects. EUROBIOTECH JOURNAL 2021. [DOI: 10.2478/ebtj-2021-0020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Silver nanoparticles (AgNPs) have been used in a variety of biomedical applications in the last two decades, including antimicrobial, anti-inflammatory, and anticancer treatments. The present study highlights the extracellular synthesis of silver nanoparticles AgNPs using Neopestalotiopsis clavispora MH244410.1 and its antibacterial, antibiofilm, and genotoxic properties. Locally isolated N. clavispora MH244410.1 was identified by Internal transcribed spacer (ITS) sequences of nuclear ribosomal DNA. Optimization of synthesized AgNPs was performed by using various parameters (pH (2, 4, 7, 9 and 12), temperature (25, 35 and 45 °C), and substrate concentration (0.05, 0.1, 0.15, 0.2 and 0.25 mM)). After 72 hours of incubation in dark conditions, the best condition for the biosynthesis of AgNPs was determined as 0.25 mM metal concentration at pH 12 and 35 °C. Fungal synthesized AgNPs were characterized via spectroscopic and microscopic techniques such as Fouirer Transform Infrared Spectrophotometer (FTIR), UV-Visible Spectroscopy, and Transmission Electron Microscopy (TEM). The average size of the AgNPs was determined less than 60 nm using the TEM and Zetasizer measurement system (measured in purity water suspension). The characteristic peak of AgNPs was observed at ~414 nm from UV-Vis results. Antibacterial and genotoxic activity of synthesized AgNPs (0.1, 1, and 10 ppm) were also determined by using the agar well diffusion method and in vivo Somatic Mutation and Recombination Test (SMART) in Drosophila melanogaster. AgNPs exhibited potential antimicrobial activity against all the tested bacteria (Bacillus subtilis, Staphylococcus aureus, and Pseudomonas aeruginosa) except Escherichia coli in a dose-dependent manner. AgNPs did not induce genotoxicity in the Drosophila SMART assay. 79.33, 65.47, and 41.95% inhibition of biofilms formed by P. aeruginosa were observed at 10, 1, and 0.1 ppm of AgNPs, respectively. The overall results indicate that N. clavispora MH244410.1 is a good candidate for novel applications in biomedical research.
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Wey K, Schirrmann R, Diesing D, Lang S, Brandau S, Hansen S, Epple M. Coating of cochlear implant electrodes with bioactive DNA-loaded calcium phosphate nanoparticles for the local transfection of stimulatory proteins. Biomaterials 2021; 276:121009. [PMID: 34280824 DOI: 10.1016/j.biomaterials.2021.121009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 06/23/2021] [Accepted: 07/02/2021] [Indexed: 12/12/2022]
Abstract
Calcium phosphate nanoparticles were loaded with nucleic acids to enhance the on-growth of tissue to a cochlear implant electrode. The nanoparticle deposition on a metallic electrode surface is possible by electrophoretic deposition (EPD) or layer-by-layer deposition (LbL). Impedance spectroscopy showed that the coating layer did not interrupt the electrical conductance at physiological frequencies and beyond (1-40,000 Hz). The transfection was demonstrated with the model cell lines HeLa and 3T3 as well as with primary explanted spiral ganglion neurons (rat) with the model protein enhanced green fluorescent protein (EGFP). The expression of the functional protein brain-derived neurotrophic factor (BDNF) was also shown. Thus, a coating of inner-ear cochlear implant electrodes with nanoparticles that carry nucleic acids will enhance the ongrowth of spiral ganglion cell axons for an improved transmission of electrical pulses.
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Affiliation(s)
- Karolin Wey
- Inorganic Chemistry and Centre for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Essen, Germany
| | - Ronja Schirrmann
- Department of Otorhinolaryngology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Detlef Diesing
- Physical Chemistry, University of Duisburg-Essen, Essen, Germany
| | - Stephan Lang
- Department of Otorhinolaryngology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Sven Brandau
- Department of Otorhinolaryngology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Stefan Hansen
- Department of Otorhinolaryngology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Matthias Epple
- Inorganic Chemistry and Centre for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Essen, Germany.
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10
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Olejnik M, Breisch M, Sokolova V, Loza K, Prymak O, Rosenkranz N, Westphal G, Bünger J, Köller M, Sengstock C, Epple M. The effect of short silica fibers (0.3 μm 3.2 μm) on macrophages. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 769:144575. [PMID: 33486165 DOI: 10.1016/j.scitotenv.2020.144575] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/10/2020] [Accepted: 12/13/2020] [Indexed: 06/12/2023]
Abstract
Silica fibers with a dimension of 0.3 μm ∙ 3.2 μm2 nm were prepared by a modified Stöber synthesis as model particles. The particles were characterized by scanning electron microscopy, elemental analysis, thermogravimetry and X-ray powder diffraction. Their uptake by macrophages (THP-1 cells and NR8383 cells) was studied by confocal laser scanning microscopy and scanning electron microscopy. The uptake by cells was very high, but the silica fibers were not harmful to NR8383 cells in concentrations up to 100 μg mL-1. Only above 100 μg mL-1, significant cell toxic effects were observed, probably induced by a high dose of particles that had sedimented on the cells and led to the adverse effects. The chemotactic response as assessed by the particle-induced migration assay (PICMA) was weak in comparison to a control of agglomerated silica particles. The as-prepared fibers were fully X-ray amorphous but crystallized to β-cristobalite after heating to 1000 °C and converted to α-cristobalite upon cooling to ambient temperature. The fibers had sintered to larger aggregates but retained their elongated primary shape. The particle cytotoxicity towards THP-1 cells was not significantly enhanced by the crystallization.
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Affiliation(s)
- Mateusz Olejnik
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Essen, Germany
| | - Marina Breisch
- BG University Hospital Bergmannsheil, Surgical Research, Ruhr University Bochum, Bochum, Germany
| | - Viktoriya Sokolova
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Essen, Germany
| | - Kateryna Loza
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Essen, Germany
| | - Oleg Prymak
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Essen, Germany
| | - Nina Rosenkranz
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), Bochum, Germany
| | - Götz Westphal
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), Bochum, Germany
| | - Jürgen Bünger
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), Bochum, Germany
| | - Manfred Köller
- BG University Hospital Bergmannsheil, Surgical Research, Ruhr University Bochum, Bochum, Germany
| | - Christina Sengstock
- BG University Hospital Bergmannsheil, Surgical Research, Ruhr University Bochum, Bochum, Germany.
| | - Matthias Epple
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Essen, Germany.
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11
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Yang Y, Li R, Zhang S, Zhang X. A fluorescent nanoprobe based on cell-penetrating peptides and quantum dots for ratiometric monitoring of pH fluctuation in lysosomes. Talanta 2021; 227:122208. [PMID: 33714476 DOI: 10.1016/j.talanta.2021.122208] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/03/2021] [Accepted: 02/07/2021] [Indexed: 10/22/2022]
Abstract
A lysosome-targeting ratiometric fluorescent nanoprobe based on cell-penetrating peptides (CPPs) and quantum dots (QDs) has been developed for monitoring pH fluctuation in living cells. The as-prepared nanoprobe is constructed by Rhodamine B labeled R9RGD CPPs as H+ response unit and the red fluorescent QDs as reference unit to achieve ratiometric pH measurement. With the help of RhB-R9RGD CPPs, the nanoprobe efficiently stains lysosomes and enables discernment of lysosomal pH fluctuation in cells treated with different pH buffers and drug stimulation. The method of using dye labeled CPPs to realize functionalization of nanoparticle in one-step reported herein is expected to obtain wider applications in the detection of subcellular active substances by combining different small molecular probes and functional peptides.
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Affiliation(s)
- Yan Yang
- College of Chemical Engineering, Qinghai University, Xining, 810016, China; Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Rui Li
- College of Chemical Engineering, Qinghai University, Xining, 810016, China
| | - Sichun Zhang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China.
| | - Xinrong Zhang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
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12
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Kersting M, Olejnik M, Rosenkranz N, Loza K, Breisch M, Rostek A, Westphal G, Bünger J, Ziegler N, Ludwig A, Köller M, Sengstock C, Epple M. Subtoxic cell responses to silica particles with different size and shape. Sci Rep 2020; 10:21591. [PMID: 33299057 PMCID: PMC7726159 DOI: 10.1038/s41598-020-78550-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 11/25/2020] [Indexed: 02/06/2023] Open
Abstract
Health risks from particles are a priority challenge to health protection at work. Despite the ubiquitous exposure to a wide range of particles and the many years of research in this field, there are fundamental unresolved questions regarding the prevention of particle-related respiratory diseases. Here, the highly relevant particulate material silicon dioxide was analyzed with emphasis on defined size and shape. Silica particles were prepared with different size and shape: Spheres (NS nanospheres 60 nm; SMS submicrospheres 230 nm; MS microspheres 430 nm) and rods (SMR submicrorods with d = 125 nm, L = 230 nm; aspect ratio 1:1.8; MR microrods with d = 100 nm, L = 600 nm; aspect ratio 1:6). After an in-depth physicochemical characterization, their effects on NR8383 alveolar macrophages were investigated. The particles were X-ray amorphous, well dispersed, and not agglomerated. Toxic effects were only observed at high concentrations, i.e. ≥ 200 µg mL-1, with the microparticles showing a stronger significant effect on toxicity (MS≈MR > SMR≈SMS≈NS) than the nanoparticles. Special attention was directed to effects in the subtoxic range (less than 50% cell death compared to untreated cells), i.e. below 100 µg mL-1 where chronic health effects may be expected. All particles were readily taken up by NR8383 cells within a few hours and mainly found associated with endolysosomes. At subtoxic levels, neither particle type induced strongly adverse effects, as probed by viability tests, detection of reactive oxygen species (ROS), protein microarrays, and cytokine release (IL-1β, GDF-15, TNF-α, CXCL1). In the particle-induced cell migration assay (PICMA) with leukocytes (dHL-60 cells) and in cytokine release assays, only small effects were seen. In conclusion, at subtoxic concentrations, where chronic health effects may be expected, neither size and nor shape of the synthesized chemically identical silica particles showed harmful cell-biological effects.
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Affiliation(s)
- Markus Kersting
- BG University Hospital Bergmannsheil, Surgical Research, Ruhr University Bochum, Bochum, Germany
| | - Mateusz Olejnik
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Essen, Germany
| | - Nina Rosenkranz
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), Bochum, Germany
| | - Kateryna Loza
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Essen, Germany
| | - Marina Breisch
- BG University Hospital Bergmannsheil, Surgical Research, Ruhr University Bochum, Bochum, Germany
| | - Alexander Rostek
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Essen, Germany
| | - Götz Westphal
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), Bochum, Germany
| | - Jürgen Bünger
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), Bochum, Germany
| | - Nadine Ziegler
- Chair for Materials Discovery and Interfaces, Institute for Materials, Faculty of Mechanical Engineering, Ruhr University Bochum, Bochum, Germany
| | - Alfred Ludwig
- Chair for Materials Discovery and Interfaces, Institute for Materials, Faculty of Mechanical Engineering, Ruhr University Bochum, Bochum, Germany
| | - Manfred Köller
- BG University Hospital Bergmannsheil, Surgical Research, Ruhr University Bochum, Bochum, Germany
| | - Christina Sengstock
- BG University Hospital Bergmannsheil, Surgical Research, Ruhr University Bochum, Bochum, Germany.
| | - Matthias Epple
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Essen, Germany.
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13
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Brkovic N, Zhang L, Peters JN, Kleine-Doepke S, Parak WJ, Zhu D. Quantitative Assessment of Endosomal Escape of Various Endocytosed Polymer-Encapsulated Molecular Cargos upon Photothermal Heating. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2003639. [PMID: 33108047 DOI: 10.1002/smll.202003639] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 09/09/2020] [Indexed: 06/11/2023]
Abstract
Encapsulated molecular cargos are efficiently endocytosed by cells. For cytosolic delivery, understanding the dynamic process of cargos release from the carrier vehicles used for encapsulation and the lysosomes where the carrier vehicles are trapped (which in general is the bottleneck), followed by diffusion in the cytosol is important for improving drug/gene delivery strategies. A methodology is reported to image this process on a millisecond scale and to quantitatively analyze the data. Polyelectrolyte capsules with embedded gold nanostars to encapsulate 43 fluorescent molecular cargos with diverse properties, ranging from small fluorophores to fluorescently labeled proteins, siRNA, etc., are used. By short laser irradiation intracellular release of the molecular cargos from endocytosed capsules into the cytosol is triggered, and their intracellular spreading is imaged. Most of the released molecular cargos evenly distribute inside the entire cell, while others are enriched in certain cell compartments. The time the different molecular cargos take to distribute within cells, i.e., the spreading time, is used as a quantifier. Quantitative analysis reveals that intracellular spread cannot be described by free diffusion, but is determined by interaction of the molecular cargo with intracellular components.
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Affiliation(s)
- Nico Brkovic
- Center for Hybrid Nanostructures (CHyN) and Fachbereich Physik, Universitat Hamburg, Hamburg, 20146, Germany
| | - Li Zhang
- Center for Hybrid Nanostructures (CHyN) and Fachbereich Physik, Universitat Hamburg, Hamburg, 20146, Germany
| | - Jan N Peters
- Center for Hybrid Nanostructures (CHyN) and Fachbereich Physik, Universitat Hamburg, Hamburg, 20146, Germany
| | - Stephan Kleine-Doepke
- Center for Hybrid Nanostructures (CHyN) and Fachbereich Physik, Universitat Hamburg, Hamburg, 20146, Germany
| | - Wolfgang J Parak
- Center for Hybrid Nanostructures (CHyN) and Fachbereich Physik, Universitat Hamburg, Hamburg, 20146, Germany
| | - Dingcheng Zhu
- Center for Hybrid Nanostructures (CHyN) and Fachbereich Physik, Universitat Hamburg, Hamburg, 20146, Germany
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14
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Zyuzin MV, Zhu D, Parak WJ, Feliu N, Escudero A. Development of Silica-Based Biodegradable Submicrometric Carriers and Investigating Their Characteristics as in Vitro Delivery Vehicles. Int J Mol Sci 2020; 21:E7563. [PMID: 33066289 PMCID: PMC7590072 DOI: 10.3390/ijms21207563] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/24/2020] [Accepted: 10/03/2020] [Indexed: 12/11/2022] Open
Abstract
Nanostructured silica (SiO2)-based materials are attractive carriers for the delivery of bioactive compounds into cells. In this study, we developed hollow submicrometric particles composed of SiO2 capsules that were separately loaded with various bioactive molecules such as dextran, proteins, and nucleic acids. The structural characterization of the reported carriers was conducted using transmission and scanning electron microscopies (TEM/SEM), confocal laser scanning microscopy (CLSM), and dynamic light scattering (DLS). Moreover, the interaction of the developed carriers with cell lines was studied using standard viability, proliferation, and uptake assays. The submicrometric SiO2-based capsules loaded with DNA plasmid encoding green fluorescence proteins (GFP) were used to transfect cell lines. The obtained results were compared with studies made with similar capsules composed of polymers and show that SiO2-based capsules provide better transfection rates on the costs of higher toxicity.
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Affiliation(s)
- Mikhail V. Zyuzin
- Department of Physics and Engineering, ITMO University, Lomonosova 9, St. Petersburg 191002, Russia;
| | - Dingcheng Zhu
- Center for Hybrid Nanostructures (CHyN), Universität Hamburg, 22607 Hamburg, Germany; (D.Z.); (W.J.P.)
| | - Wolfgang J. Parak
- Center for Hybrid Nanostructures (CHyN), Universität Hamburg, 22607 Hamburg, Germany; (D.Z.); (W.J.P.)
| | - Neus Feliu
- Center for Hybrid Nanostructures (CHyN), Universität Hamburg, 22607 Hamburg, Germany; (D.Z.); (W.J.P.)
- Fraunhofer Center for Applied Nanotechnology (CAN), 20146 Hamburg, Germany
| | - Alberto Escudero
- Departamento de Química Inorgánica. Facultad de Química, Universidad de Sevilla, Calle Profesor García González 1, E–41012 Seville, Spain
- Instituto de Investigaciones Químicas (IIQ), Universidad de Sevilla–CSIC, Calle Américo Vespucio 49, E–41092 Seville, Spain
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15
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Roy S, Zhu D, Parak WJ, Feliu N. Lysosomal Proton Buffering of Poly(ethylenimine) Measured In Situ by Fluorescent pH-Sensor Microcapsules. ACS NANO 2020; 14:8012-8023. [PMID: 32568521 DOI: 10.1021/acsnano.9b10219] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Poly(ethylenimine) (PEI) is frequently used as transfection agent for delivery of nucleic acids to the cytosol. After endocytosis of complexes of PEI and nucleic acids, a fraction of them can escape endosomes/lysosomes and reach the cytosol. One proposed mechanism is the so-called proton sponge effect, which involves buffering of the lysosomal pH by PEI. There are however also reports that report the absence of such buffering. In this work, the buffering capacity of PEI of the lysosomal pH was investigated in situ by combining PEI and pH-sensing ratiometric fluorophores in a single carrier particle. As carrier particles, hereby capsules were used, which were composed of polyelectrolyte walls based on layer-by-layer assembly, with the pH sensors located inside the capsule cavities. In this way, the local pH around individual particles could be monitored during the whole process of endocytosis. Results demonstrate the pH-buffering capability of PEI, which prevents the strong acidification of lysosomes containing PEI. This effect was related to the presence of PEI and was not related to the overall charge of the carrier particles. In case PEI was added in molecular form, no buffering of pH could be observed by endocytosed encapsulated pH-sensing ratiometric fluorophores. Co-localization experiments demonstrated that this was due to the fact that internalized free PEI and the encapsulated pH-sensing ratiometric fluorophores were not located in the same lysosomes. Missing co-localization might explain why also in other studies no pH buffering was found; in the case of co-delivery of PEI, the pH sensors could be clearly observed.
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Affiliation(s)
- Sathi Roy
- Center for Hybrid Nanostructures (CHyN), Universität Hamburg, Luruper Chaussee 149, 22607 Hamburg, Germany
| | - Dingcheng Zhu
- Center for Hybrid Nanostructures (CHyN), Universität Hamburg, Luruper Chaussee 149, 22607 Hamburg, Germany
| | - Wolfgang J Parak
- Center for Hybrid Nanostructures (CHyN), Universität Hamburg, Luruper Chaussee 149, 22607 Hamburg, Germany
- CIC Biomagune, Miramon Pasealekua 182, 20014 San Sebastian, Spain
| | - Neus Feliu
- Center for Hybrid Nanostructures (CHyN), Universität Hamburg, Luruper Chaussee 149, 22607 Hamburg, Germany
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16
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Zartner L, Muthwill MS, Dinu IA, Schoenenberger CA, Palivan CG. The rise of bio-inspired polymer compartments responding to pathology-related signals. J Mater Chem B 2020; 8:6252-6270. [PMID: 32452509 DOI: 10.1039/d0tb00475h] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Self-organized nano- and microscale polymer compartments such as polymersomes, giant unilamellar vesicles (GUVs), polyion complex vesicles (PICsomes) and layer-by-layer (LbL) capsules have increasing potential in many sensing applications. Besides modifying the physicochemical properties of the corresponding polymer building blocks, the versatility of these compartments can be markedly expanded by biomolecules that endow the nanomaterials with specific molecular and cellular functions. In this review, we focus on polymer-based compartments that preserve their structure, and highlight the key role they play in the field of medical diagnostics: first, the self-assembling abilities that result in preferred architectures are presented for a broad range of polymers. In the following, we describe different strategies for sensing disease-related signals (pH-change, reductive conditions, and presence of ions or biomolecules) by polymer compartments that exhibit stimuli-responsiveness. In particular, we distinguish between the stimulus-sensitivity contributed by the polymer itself or by additional compounds embedded in the compartments in different sensing systems. We then address necessary properties of sensing polymeric compartments, such as the enhancement of their stability and biocompatibility, or the targeting ability, that open up new perspectives for diagnostic applications.
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Affiliation(s)
- Luisa Zartner
- Chemistry Department, University of Basel, Mattenstr. 24a, BPR1096, Basel, Switzerland.
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17
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Sharma V, Sundaramurthy A. Multilayer capsules made of weak polyelectrolytes: a review on the preparation, functionalization and applications in drug delivery. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2020; 11:508-532. [PMID: 32274289 PMCID: PMC7113543 DOI: 10.3762/bjnano.11.41] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 02/25/2020] [Indexed: 06/11/2023]
Abstract
Multilayer capsules have been of great interest for scientists and medical communities in multidisciplinary fields of research, such as drug delivery, sensing, biomedicine, theranostics and gene therapy. The most essential attributes of a drug delivery system are considered to be multi-functionality and stimuli responsiveness against a range of external and internal stimuli. Apart from the highly explored strong polyelectrolytes, weak polyelectrolytes offer great versatility with a highly controllable architecture, unique stimuli responsiveness and easy tuning of the properties for intracellular delivery of cargo. This review describes the progress in the preparation, functionalization and applications of capsules made of weak polyelectrolytes or their combination with biopolymers. The selection of a sacrificial template for capsule formation, the driving forces involved, the encapsulation of a variety of cargo and release based on different internal and external stimuli have also been addressed. We describe recent perspectives and obstacles of weak polyelectrolyte/biopolymer systems in applications such as therapeutics, biosensing, bioimaging, bioreactors, vaccination, tissue engineering and gene delivery. This review gives an emerging outlook on the advantages and unique responsiveness of weak polyelectrolyte based systems that can enable their widespread use in potential applications.
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Affiliation(s)
- Varsha Sharma
- Department of Biomedical Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
- SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
| | - Anandhakumar Sundaramurthy
- SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
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18
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Van der Meeren L, Li J, Parakhonskiy BV, Krysko DV, Skirtach AG. Classification of analytics, sensorics, and bioanalytics with polyelectrolyte multilayer capsules. Anal Bioanal Chem 2020; 412:5015-5029. [PMID: 32103307 DOI: 10.1007/s00216-020-02428-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 01/05/2020] [Accepted: 01/15/2020] [Indexed: 12/17/2022]
Abstract
Polyelectrolyte multilayer (PEM) capsules, constructed by LbL (layer-by-layer)-adsorbing polymers on sacrificial templates, have become important carriers due to multifunctionality of materials adsorbed on their surface or encapsulated into their interior. They have been also been used broadly used as analytical tools. Chronologically and traditionally, chemical analytics has been developed first, which has long been synonymous with all analytics. But it is not the only development. To the best of our knowledge, a summary of all advances including their classification is not available to date. Here, we classify analytics, sensorics, and biosensorics functionalities implemented with polyelectrolyte multilayer capsules and coated particles according to the respective stimuli and application areas. In this classification, three distinct categories are identified: (I) chemical analytics (pH; K+, Na+, and Pb2+ ion; oxygen; and hydrogen peroxide sensors and chemical sensing with surface-enhanced Raman scattering (SERS)); (II) physical sensorics (temperature, mechanical properties and forces, and osmotic pressure); and (III) biosensorics and bioanalytics (fluorescence, glucose, urea, and protease biosensing and theranostics). In addition to this classification, we discuss also principles of detection using the above-mentioned stimuli. These application areas are expected to grow further, but the classification provided here should help (a) to realize the wealth of already available analytical and bioanalytical tools developed with capsules using inputs of chemical, physical, and biological stimuli and (b) to position future developments in their respective fields according to employed stimuli and application areas. Graphical abstract.
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Affiliation(s)
- Louis Van der Meeren
- Nano-Biotechnology Group, Department of Biotechnology, Ghent University, 9000, Ghent, Belgium
| | - Jie Li
- Nano-Biotechnology Group, Department of Biotechnology, Ghent University, 9000, Ghent, Belgium
| | - Bogdan V Parakhonskiy
- Nano-Biotechnology Group, Department of Biotechnology, Ghent University, 9000, Ghent, Belgium
| | - Dmitri V Krysko
- Cell Death Investigation and Therapy Laboratory, Department of Human Structure and Repair, Ghent University, 9000, Ghent, Belgium.,Cancer Research Institute Ghent, 9000, Ghent, Belgium.,Institute of Biology and Biomedicine, National Research Lobachevsky State University of Nizhni Novgorod, Nizhni Novgorod, Russian Federation, 603950
| | - Andre G Skirtach
- Nano-Biotechnology Group, Department of Biotechnology, Ghent University, 9000, Ghent, Belgium. .,Cancer Research Institute Ghent, 9000, Ghent, Belgium. .,Advanced Light Microscopy Centre, Ghent University, 9000, Ghent, Belgium.
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19
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Brackx G, Guinoiseau D, Duponchel L, Gélabert A, Reichel V, Zrig S, Meglio JMD, Benedetti MF, Gaillardet J, Charron G. A frugal implementation of Surface Enhanced Raman Scattering for sensing Zn 2+ in freshwaters - In depth investigation of the analytical performances. Sci Rep 2020; 10:1883. [PMID: 32024904 PMCID: PMC7002737 DOI: 10.1038/s41598-020-58647-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 01/13/2020] [Indexed: 11/09/2022] Open
Abstract
Surface Enhanced Raman Scattering (SERS) has been widely praised for its extreme sensitivity but has not so far been put to use in routine analytical applications, with the accessible scale of measurements a limiting factor. We report here on a frugal implementation of SERS dedicated to the quantitative detection of Zn2+ in water, Zn being an element that can serve as an indicator of contamination by heavy metals in aquatic bodies. The method consists in randomly aggregating simple silver colloids in the analyte solution in the presence of a complexometric indicator of Zn2+, recording the SERS spectrum with a portable Raman spectrometer and analysing the data using multivariate calibration models. The frugality of the sensing procedure enables us to acquire a dataset much larger than conventionally done in the field of SERS, which in turn allows for an in-depth statistical analysis of the analytical performances that matter to end-users. In pure water, the proposed sensor is sensitive and accurate in the 160-2230 nM range, with a trueness of 96% and a precision of 4%. Although its limit of detection is one order of magnitude higher than those of golden standard techniques for quantifying metals, its sensitivity range matches Zn levels that are relevant to the health of aquatic bodies. Moreover, its frugality positions it as an interesting alternative to monitor water quality. Critically, the combination of the simple procedure for sample preparation, abundant SERS material and affordable portable instrument paves the way for a realistic deployment to the water site, with each Zn reading three to five times cheaper than through conventional techniques. It could therefore complement current monitoring methods in a bid to solve the pressing needs for large scale water quality data.
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Affiliation(s)
- Gwennhaël Brackx
- Laboratoire Matière et Systèmes Complexes, UMR 7057, Université Paris Diderot, Sorbonne Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205, Paris, cedex 13, France
| | - Damien Guinoiseau
- Institut de Physique du Globe de Paris, Sorbonne Paris Cité, CNRS UMR 7154, 1 rue Jussieu, 75005, Paris, France
| | - Ludovic Duponchel
- LASIR CNRS UMR 8516, Université de Lille, Sciences et Technologies, 59655, Villeneuve d'Ascq Cedex, France
| | - Alexandre Gélabert
- Institut de Physique du Globe de Paris, Sorbonne Paris Cité, CNRS UMR 7154, 1 rue Jussieu, 75005, Paris, France
| | - Victoria Reichel
- Laboratoire Matière et Systèmes Complexes, UMR 7057, Université Paris Diderot, Sorbonne Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205, Paris, cedex 13, France
| | - Samia Zrig
- ITODYS, UMR 7086, Université Paris Diderot, Sorbonne Paris Cité, CNRS, 15 rue J-A de Baïf, 75205, Paris, cedex 13, France
| | - Jean-Marc Di Meglio
- Laboratoire Matière et Systèmes Complexes, UMR 7057, Université Paris Diderot, Sorbonne Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205, Paris, cedex 13, France
| | - Marc F Benedetti
- Institut de Physique du Globe de Paris, Sorbonne Paris Cité, CNRS UMR 7154, 1 rue Jussieu, 75005, Paris, France
| | - Jérôme Gaillardet
- Institut de Physique du Globe de Paris, Sorbonne Paris Cité, CNRS UMR 7154, 1 rue Jussieu, 75005, Paris, France
| | - Gaëlle Charron
- Laboratoire Matière et Systèmes Complexes, UMR 7057, Université Paris Diderot, Sorbonne Paris Cité, CNRS, 10 rue Alice Domon et Léonie Duquet, 75205, Paris, cedex 13, France.
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Ibadullaeva SZ, Appazov NO, Tarahovsky YS, Zamyatina EA, Fomkina MG, Kim YA. Amperometric Multi-Enzyme Biosensors: Development and Application, a Short Review. Biophysics (Nagoya-shi) 2019. [DOI: 10.1134/s0006350919050063] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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21
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Fernández-Caro H, Lostalé-Seijo I, Martínez-Calvo M, Mosquera J, Mascareñas JL, Montenegro J. Supramolecular caging for cytosolic delivery of anionic probes. Chem Sci 2019; 10:8930-8938. [PMID: 32110291 PMCID: PMC7017865 DOI: 10.1039/c9sc02906k] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 08/19/2019] [Indexed: 12/23/2022] Open
Abstract
The cytosolic delivery of hydrophilic, anionic molecular probes and therapeutics is a major challenge in chemical biology and medicine. Herein, we describe the design and synthesis of peptide-cage hybrids that allow an efficient supramolecular binding, cell membrane translocation and cytosolic delivery of a number of anionic dyes, including pyranine, carboxyfluorescein and several sulfonate-containing Alexa dyes. This supramolecular caging strategy is successful in different cell lines, and the dynamic carrier mechanism has been validated by U-tube experiments. The high efficiency of the reported approach allowed intracellular pH tracking by exploiting the ratiometric excitation of the pyranine fluorescent probe.
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Affiliation(s)
- Héctor Fernández-Caro
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) , Departamento de Química Orgánica , Universidade de Santiago de Compostela , 15782 , Santiago de Compostela , Spain . ;
| | - Irene Lostalé-Seijo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) , Departamento de Química Orgánica , Universidade de Santiago de Compostela , 15782 , Santiago de Compostela , Spain . ;
| | - Miguel Martínez-Calvo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) , Departamento de Química Orgánica , Universidade de Santiago de Compostela , 15782 , Santiago de Compostela , Spain . ;
| | - Jesús Mosquera
- CIC biomaGUNE , Paseo Miramón 182 , 20014 , Donostia/San Sebastián , Spain
| | - José L Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) , Departamento de Química Orgánica , Universidade de Santiago de Compostela , 15782 , Santiago de Compostela , Spain . ;
| | - Javier Montenegro
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) , Departamento de Química Orgánica , Universidade de Santiago de Compostela , 15782 , Santiago de Compostela , Spain . ;
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Zhao S, Caruso F, Dähne L, Decher G, De Geest BG, Fan J, Feliu N, Gogotsi Y, Hammond PT, Hersam MC, Khademhosseini A, Kotov N, Leporatti S, Li Y, Lisdat F, Liz-Marzán LM, Moya S, Mulvaney P, Rogach AL, Roy S, Shchukin DG, Skirtach AG, Stevens MM, Sukhorukov GB, Weiss PS, Yue Z, Zhu D, Parak WJ. The Future of Layer-by-Layer Assembly: A Tribute to ACS Nano Associate Editor Helmuth Möhwald. ACS NANO 2019; 13:6151-6169. [PMID: 31124656 DOI: 10.1021/acsnano.9b03326] [Citation(s) in RCA: 133] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Layer-by-layer (LbL) assembly is a widely used tool for engineering materials and coatings. In this Perspective, dedicated to the memory of ACS Nano associate editor Prof. Dr. Helmuth Möhwald, we discuss the developments and applications that are to come in LbL assembly, focusing on coatings, bulk materials, membranes, nanocomposites, and delivery vehicles.
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Affiliation(s)
- Shuang Zhao
- Fachbereich Physik, CHyN , Universität Hamburg , 22607 Hamburg , Germany
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Lars Dähne
- Surflay Nanotec GmbH , 12489 Berlin , Germany
| | - Gero Decher
- CNRS Institut Charles Sadron, Faculté de Chimie , Université de Strasbourg, Int. Center for Frontier Research in Chemistry , Strasbourg F-67034 , France
- Int. Center for Materials Nanoarchitectonics , Ibaraki 305-0044 , Japan
| | - Bruno G De Geest
- Department of Pharmaceutics , Ghent University , 9000 Ghent , Belgium
| | - Jinchen Fan
- Department of Chemical Engineering and Biointerfaces Institute , University of Michigan , Ann Arbor , Michigan 48105 , United States
| | - Neus Feliu
- Fachbereich Physik, CHyN , Universität Hamburg , 22607 Hamburg , Germany
| | - Yury Gogotsi
- Department of Materials Science and Engineering and A. J. Drexel Nanomaterials Institute , Drexel University , Philadelphia , Pennsylvania 19104 , United States
| | - Paula T Hammond
- Department of Chemical Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02459 , United States
| | - Mark C Hersam
- Department of Materials Science and Engineering , Northwestern University , Evanston , Illinois 60208-3108 , United States
| | - Ali Khademhosseini
- Department of Bioengineering, Center for Minimally Invasive Therapeutics (C-MIT), California NanoSystems Institute (CNSI) , University of California, Los Angeles , Los Angeles , California 90095 , United States
| | - Nicholas Kotov
- Department of Chemical Engineering and Biointerfaces Institute , University of Michigan , Ann Arbor , Michigan 48105 , United States
- Michigan Institute for Translational Nanotechnology , Ypsilanti , Michigan 48198 , United States
| | - Stefano Leporatti
- CNR Nanotec-Istituto di Nanotecnologia , Italian National Research Council , Lecce 73100 , Italy
| | - Yan Li
- College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - Fred Lisdat
- Biosystems Technology, Institute for Applied Life Sciences , Technical University , D-15745 Wildau , Germany
| | - Luis M Liz-Marzán
- CIC biomaGUNE , San Sebastian 20009 , Spain
- Ikerbasque, Basque Foundation for Science , Bilbao 48013 , Spain
| | | | - Paul Mulvaney
- ARC Centre of Excellence in Exciton Science, School of Chemistry , University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Andrey L Rogach
- Department of Materials Science and Engineering, and Centre for Functional Photonics (CFP) , City University of Hong Kong , Kowloon Tong , Hong Kong SAR
| | - Sathi Roy
- Fachbereich Physik, CHyN , Universität Hamburg , 22607 Hamburg , Germany
| | - Dmitry G Shchukin
- Stephenson Institute for Renewable Energy, Department of Chemistry , University of Liverpool , Liverpool L69 7ZF , United Kingdom
| | - Andre G Skirtach
- Nano-BioTechnology group, Department of Biotechnology, Faculty of Bioscience Engineering , Ghent University , 9000 Ghent , Belgium
| | - Molly M Stevens
- Department of Materials, Department of Bioengineering and Institute for Biomedical Engineering , Imperial College London , London SW7 2AZ , United Kingdom
| | - Gleb B Sukhorukov
- School of Engineering and Materials Science , Queen Mary University of London , London E1 4NS , United Kingdom
| | - Paul S Weiss
- Department of Bioengineering, Center for Minimally Invasive Therapeutics (C-MIT), California NanoSystems Institute (CNSI) , University of California, Los Angeles , Los Angeles , California 90095 , United States
- Department of Chemistry and Biochemistry and Department of Materials Science and Engineering , University of California, Los Angeles , Los Angeles , California 90095 , United States
| | - Zhao Yue
- Department of Microelectronics , Nankai University , Tianjin 300350 , China
| | - Dingcheng Zhu
- Fachbereich Physik, CHyN , Universität Hamburg , 22607 Hamburg , Germany
| | - Wolfgang J Parak
- Fachbereich Physik, CHyN , Universität Hamburg , 22607 Hamburg , Germany
- CIC biomaGUNE , San Sebastian 20009 , Spain
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23
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Roy S, Elbaz NM, Parak WJ, Feliu N. Biodegradable Alginate Polyelectrolyte Capsules As Plausible Biocompatible Delivery Carriers. ACS APPLIED BIO MATERIALS 2019; 2:3245-3256. [DOI: 10.1021/acsabm.9b00203] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sathi Roy
- Faculty of Physics, Center for Hybrid Nanostructures (CHyN), Universität Hamburg, Hamburg, Germany
| | - Nancy M. Elbaz
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
| | - Wolfgang J. Parak
- Faculty of Physics, Center for Hybrid Nanostructures (CHyN), Universität Hamburg, Hamburg, Germany
| | - Neus Feliu
- Faculty of Physics, Center for Hybrid Nanostructures (CHyN), Universität Hamburg, Hamburg, Germany
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24
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Ashraf S, Taylor A, Sharkey J, Barrow M, Murray P, Wilm B, Poptani H, Rosseinsky MJ, Adams DJ, Lévy R. In vivo fate of free and encapsulated iron oxide nanoparticles after injection of labelled stem cells. NANOSCALE ADVANCES 2019; 1:367-377. [PMID: 36132463 PMCID: PMC9473218 DOI: 10.1039/c8na00098k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 09/16/2018] [Indexed: 05/21/2023]
Abstract
Nanoparticle contrast agents are useful tools to label stem cells and monitor the in vivo bio-distribution of labeled cells in pre-clinical models of disease. In this context, understanding the in vivo fate of the particles after injection of labelled cells is important for their eventual clinical use as well as for the interpretation of imaging results. We examined how the formulation of superparamagnetic iron oxide nanoparticles (SPIONs) impacts the labelling efficiency, magnetic characteristics and fate of the particles by comparing individual SPIONs with polyelectrolyte multilayer capsules containing SPIONs. At low labelling concentration, encapsulated SPIONs served as an efficient labelling agent for stem cells. The bio-distribution after intra-cardiac injection of labelled cells was monitored longitudinally by MRI and as an endpoint by inductively coupled plasma-optical emission spectrometry. The results suggest that, after being released from labelled cells after cell death, both formulations of particles are initially stored in liver and spleen and are not completely cleared from these organs 2 weeks post-injection.
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Affiliation(s)
- Sumaira Ashraf
- Department of Biochemistry, Institute of Integrative Biology (IIB), University of Liverpool Liverpool UK
| | - Arthur Taylor
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine (ITM), University of Liverpool Liverpool UK
- Centre for Preclinical Imaging, Institute of Translational Medicine (ITM), University of Liverpool Liverpool UK
| | - Jack Sharkey
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine (ITM), University of Liverpool Liverpool UK
- Centre for Preclinical Imaging, Institute of Translational Medicine (ITM), University of Liverpool Liverpool UK
| | - Michael Barrow
- Department of Chemistry, University of Liverpool Liverpool UK
| | - Patricia Murray
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine (ITM), University of Liverpool Liverpool UK
- Centre for Preclinical Imaging, Institute of Translational Medicine (ITM), University of Liverpool Liverpool UK
| | - Bettina Wilm
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine (ITM), University of Liverpool Liverpool UK
- Centre for Preclinical Imaging, Institute of Translational Medicine (ITM), University of Liverpool Liverpool UK
| | - Harish Poptani
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine (ITM), University of Liverpool Liverpool UK
- Centre for Preclinical Imaging, Institute of Translational Medicine (ITM), University of Liverpool Liverpool UK
| | | | - Dave J Adams
- Department of Chemistry, University of Liverpool Liverpool UK
- School of Chemistry, University of Glasgow Glasgow UK
| | - Raphaël Lévy
- Department of Biochemistry, Institute of Integrative Biology (IIB), University of Liverpool Liverpool UK
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25
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Hou JT, Ren WX, Li K, Seo J, Sharma A, Yu XQ, Kim JS. Fluorescent bioimaging of pH: from design to applications. Chem Soc Rev 2018; 46:2076-2090. [PMID: 28317979 DOI: 10.1039/c6cs00719h] [Citation(s) in RCA: 326] [Impact Index Per Article: 54.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Protons play crucial roles in many physiological and pathological processes, such as receptor-mediated signal transduction, ion transport, endocytosis, homeostasis, cell proliferation, and apoptosis. The urgent demand for pH imaging and measurement in biological systems has incited the development of fluorescent pH probes. Numerous fluorescent probes have been reported, but many lack the abilities needed for biological applications. Hence, the development of new pH probes with better biocompatibility, sensitivity, and site-specificity is still indispensable. This review highlights the recent trends in the development of fluorescent materials as essential tools for tracing pH variations in the biological processes of diverse living systems.
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Affiliation(s)
- Ji-Ting Hou
- Department of Chemistry, Korea University, Seoul 02841, Korea.
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26
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Zhang XP, Luo J, Zhang DX, Jing TF, Li BX, Liu F. Porous microcapsules with tunable pore sizes provide easily controllable release and bioactivity. J Colloid Interface Sci 2018; 517:86-92. [DOI: 10.1016/j.jcis.2018.01.100] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 01/24/2018] [Accepted: 01/29/2018] [Indexed: 10/18/2022]
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27
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Zhang XP, Luo J, Jing TF, Zhang DX, Li BX, Liu F. Porous epoxy phenolic novolac resin polymer microcapsules: Tunable release and bioactivity controlled by epoxy value. Colloids Surf B Biointerfaces 2018; 165:165-171. [PMID: 29477937 DOI: 10.1016/j.colsurfb.2018.02.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 01/06/2018] [Accepted: 02/11/2018] [Indexed: 11/26/2022]
Abstract
Microcapsules (MCs) prepared with diverse wall material structures may exhibit different properties. In this study, MCs were fabricated with three kinds of epoxy phenolic novolac resins (EPNs), which possessed unique epoxy values as wall-forming materials by interfacial polymerization. The effects of the EPN types on the surface morphology, particle size distribution, encapsulation efficiency, thermal stability as well as release behavior and bioactivity of the MCs were investigated. In all three samples, the MCs had nearly spherical shapes with fine monodispersities and sizes in the range of 7-30 μm. Scanning electron microscopy (SEM) images showed that some small pores (ranging from 50 nm to 400 nm) appeared on the microcapsule surfaces and that the porosity decreased with an increasing of epoxy value. The X-ray diffractometer (XRD) analysis indicated that the cured EPN shells had larger degrees of crosslinking with higher epoxy values, leading to better thermal stabilities. Moreover, the release rate of the core material (pendimethalin) decreased with an increasing of epoxy value and thus resulted in a lower herbicidal control efficacy. The results of our research will enhance the potential application of EPNs as smart wall-forming materials to prepare porous MCs for controlled release.
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Affiliation(s)
- Xian-Peng Zhang
- Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Jian Luo
- Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Tong-Fang Jing
- Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Da-Xia Zhang
- Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China; Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Bei-Xing Li
- Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Feng Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China; College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China.
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28
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Zhu D, Yan H, Zhou Z, Tang J, Liu X, Hartmann R, Parak WJ, Feliu N, Shen Y. Detailed investigation on how the protein corona modulates the physicochemical properties and gene delivery of polyethylenimine (PEI) polyplexes. Biomater Sci 2018; 6:1800-1817. [DOI: 10.1039/c8bm00128f] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Given the various cationic polymers developed as non-viral gene delivery vectors, polyethylenimine (PEI) has been/is frequently used in in vitro transfection.
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Affiliation(s)
- Dingcheng Zhu
- Center for Bionanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- College of Chemical and Biological Engineering
- Zhejiang University
- China
- Fachbereich Physik
| | - Huijie Yan
- Center for Bionanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- College of Chemical and Biological Engineering
- Zhejiang University
- China
- Fachbereich Physik
| | - Zhuxian Zhou
- Center for Bionanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- College of Chemical and Biological Engineering
- Zhejiang University
- China
| | - Jianbin Tang
- Center for Bionanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- College of Chemical and Biological Engineering
- Zhejiang University
- China
| | - Xiangrui Liu
- Center for Bionanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- College of Chemical and Biological Engineering
- Zhejiang University
- China
| | | | - Wolfgang J. Parak
- Fachbereich Physik
- Philipps Universität Marburg
- Germany
- Fachbereich Physik und Chemie and CHyN
- Universität Hamburg
| | - Neus Feliu
- Fachbereich Physik
- Philipps Universität Marburg
- Germany
- Fachbereich Physik und Chemie and CHyN
- Universität Hamburg
| | - Youqing Shen
- Center for Bionanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of Education
- College of Chemical and Biological Engineering
- Zhejiang University
- China
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29
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Tsoutsi D, Sanles-Sobrido M, Cabot A, Gil PR. Common Aspects Influencing the Translocation of SERS to Biomedicine. Curr Med Chem 2018; 25:4638-4652. [PMID: 29303073 PMCID: PMC6302347 DOI: 10.2174/0929867325666180105101841] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 12/05/2017] [Accepted: 12/05/2017] [Indexed: 11/22/2022]
Abstract
This review overviews the impact in biomedicine of surface enhanced. Raman scattering motivated by the great potential we believe this technique has. We present the advantages and limitations of this technique relevant to bioanalysis in vitro and in vivo and how this technique goes beyond the state of the art of traditional analytical, labelling and healthcare diagnostic technologies.
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Affiliation(s)
| | | | | | - Pilar Rivera Gil
- Address correspondence to this author at the Department of Experimental and Health Sciences, Pompeu Fabra University, Barcelona, Spain; Tel/Fax: +34933160918; E-mail:
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30
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Liu Y, Qu Z, Cao H, Sun H, Gao Y, Jiang X. pH Switchable Nanoassembly for Imaging a Broad Range of Malignant Tumors. ACS NANO 2017; 11:12446-12452. [PMID: 29195042 DOI: 10.1021/acsnano.7b06483] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Polymer-based fluorescent nanomaterials have proven to universally image various tumors based on their extremely sharp responsiveness to pH change. Such a property has never been realized in supramolecular systems. We herein design a small molecule (DPP-thiophene-4) that is composed of a diketopyrrolopyrrole (DPP) core and two alkyl chains terminated with quaternary ammonium. DPP-thiophene-4 can self-assemble into a nonfluorescent nanoassembly when the pH is >7.0 but reversibly disassembles back to fluorescent monomers when the pH is <6.8. Meanwhile, its fluorescence emission increases by 10-fold within a 0.2 pH unit change. Such a fluorogenic nanoassembly can precisely differentiate a number of malignant tumors among normal tissues in vivo due to the slight acidity within tumor microenvironments. Further the nanoassembly shows satisfactory biocompatibility and an effective clearance from the body. Overall, this supramolecular fluorogenic nanoassembly exhibits an immense potential for realizing broad range tumor diagnosis.
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Affiliation(s)
- Ye Liu
- CAS Center for Excellence in Nanoscience, Beijing Engineering Research Center for BioNanotechnology, and CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for NanoScience and Technology , No.11 Zhongguancun Beiyitiao, Beijing 100190, P. R. China
| | - Zhuo Qu
- CAS Center for Excellence in Nanoscience, Beijing Engineering Research Center for BioNanotechnology, and CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for NanoScience and Technology , No.11 Zhongguancun Beiyitiao, Beijing 100190, P. R. China
| | - Hongyan Cao
- CAS Center for Excellence in Nanoscience, Beijing Engineering Research Center for BioNanotechnology, and CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for NanoScience and Technology , No.11 Zhongguancun Beiyitiao, Beijing 100190, P. R. China
| | - Hongyan Sun
- CAS Center for Excellence in Nanoscience, Beijing Engineering Research Center for BioNanotechnology, and CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for NanoScience and Technology , No.11 Zhongguancun Beiyitiao, Beijing 100190, P. R. China
| | - Yuan Gao
- CAS Center for Excellence in Nanoscience, Beijing Engineering Research Center for BioNanotechnology, and CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for NanoScience and Technology , No.11 Zhongguancun Beiyitiao, Beijing 100190, P. R. China
| | - Xingyu Jiang
- CAS Center for Excellence in Nanoscience, Beijing Engineering Research Center for BioNanotechnology, and CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for NanoScience and Technology , No.11 Zhongguancun Beiyitiao, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
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31
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Zhao X, Zhou L, Riaz Rajoka MS, Yan L, Jiang C, Shao D, Zhu J, Shi J, Huang Q, Yang H, Jin M. Fungal silver nanoparticles: synthesis, application and challenges. Crit Rev Biotechnol 2017; 38:817-835. [PMID: 29254388 DOI: 10.1080/07388551.2017.1414141] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
PURPOSE This paper aims to summarize recent developments regarding the synthesis, application and challenges of fungal AgNPs. Possible methods to overcome the challenge of synthesis and reduce the toxicity of AgNPs have been discussed. MATERIALS AND METHODS This review consults and summary a large number of papers. RESULTS Silver nanoparticles (AgNPs) have great potential in many areas, as they possess multiple novel characteristics. Conventional methods for AgNPs biosynthesis involve chemical agents, causing environmental toxicity and high energy consumption. Fungal bioconversion is a simple, low-cost and energy-efficient biological method, which could successfully be used for AgNPs synthesis. Fungi can produce enzymes that act as both reducing and capping agents, to form stable and shape-controlled AgNPs. CONCLUSIONS AgNPs have great potential in the medical and food industries, due to their antimicrobial, anticancer, anti-HIV, and catalytic activities. However, the observed in vitro and in vivo toxicity poses considerable challenges in the synthesis and application of AgNPs.
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Affiliation(s)
- Xixi Zhao
- a Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences , Northwestern Polytechnical University , Xi'an , China
| | - Liangfu Zhou
- a Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences , Northwestern Polytechnical University , Xi'an , China
| | - Muhammad Shahid Riaz Rajoka
- a Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences , Northwestern Polytechnical University , Xi'an , China
| | - Lu Yan
- a Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences , Northwestern Polytechnical University , Xi'an , China
| | - Chunmei Jiang
- a Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences , Northwestern Polytechnical University , Xi'an , China
| | - Dongyan Shao
- a Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences , Northwestern Polytechnical University , Xi'an , China
| | - Jing Zhu
- a Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences , Northwestern Polytechnical University , Xi'an , China
| | - Junling Shi
- a Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences , Northwestern Polytechnical University , Xi'an , China
| | - Qingsheng Huang
- a Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences , Northwestern Polytechnical University , Xi'an , China
| | - Hui Yang
- a Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences , Northwestern Polytechnical University , Xi'an , China
| | - Mingliang Jin
- a Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences , Northwestern Polytechnical University , Xi'an , China
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32
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Li H, Zheng H, Zhang Y, Zhang W, Tong W, Gao C. Preparation of photo-responsive poly(ethylene glycol) microparticles and their influence on cell viability. J Colloid Interface Sci 2017; 514:182-189. [PMID: 29257972 DOI: 10.1016/j.jcis.2017.12.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 12/11/2017] [Accepted: 12/11/2017] [Indexed: 12/14/2022]
Abstract
Intelligent colloidal particles have been widely used as carriers for delivery of bioactive molecules due to the ability of controlled release. However, attention is mainly paid to the effects of their payloads, whereas the impacts of carriers are largely ignored. In this study, photo-responsive polyethylene glycol (PEG) microparticles were fabricated by using 8-arm-PEG with terminal amine groups (8-arm-PEG-NH2) and a photo-cleavable cross-linker. Due to the cleavable CO bond in the cross-linker, under UV irradiation the PEG particles could be decomposed gradually, leading to particle swelling and eventual disappearance. The PEG particles could be internalized by smooth muscle cells and HepG2 cells, and located in lysosomes. Their intracellular photo-response induced significant decrease of cell viability and increase of reactive oxygen species level.
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Affiliation(s)
- Huiying Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University in Hangzhou, 310027, China
| | - Honghao Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University in Hangzhou, 310027, China
| | - Yixian Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University in Hangzhou, 310027, China
| | - Wenbo Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University in Hangzhou, 310027, China
| | - Weijun Tong
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University in Hangzhou, 310027, China.
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University in Hangzhou, 310027, China.
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33
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De Acha N, Elosua C, Matias I, Arregui FJ. Luminescence-Based Optical Sensors Fabricated by Means of the Layer-by-Layer Nano-Assembly Technique. SENSORS (BASEL, SWITZERLAND) 2017; 17:E2826. [PMID: 29211050 PMCID: PMC5751518 DOI: 10.3390/s17122826] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 12/01/2017] [Accepted: 12/04/2017] [Indexed: 12/15/2022]
Abstract
Luminescence-based sensing applications range from agriculture to biology, including medicine and environmental care, which indicates the importance of this technique as a detection tool. Luminescent optical sensors are required to be highly stable, sensitive, and selective, three crucial features that can be achieved by fabricating them by means of the layer-by-layer nano-assembly technique. This method permits us to tailor the sensors' properties at the nanometer scale, avoiding luminophore aggregation and, hence, self-quenching, promoting the diffusion of the target analytes, and building a barrier against the undesired molecules. These characteristics give rise to the fabrication of custom-made sensors for each particular application.
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Affiliation(s)
- Nerea De Acha
- Department of Electric and Electronic Engineering, Public University of Navarra, E-31006 Pamplona, Spain.
| | - Cesar Elosua
- Department of Electric and Electronic Engineering, Public University of Navarra, E-31006 Pamplona, Spain.
- Institute of Smart Cities (ISC), Public University of Navarra, E-31006 Pamplona, Spain.
| | - Ignacio Matias
- Department of Electric and Electronic Engineering, Public University of Navarra, E-31006 Pamplona, Spain.
- Institute of Smart Cities (ISC), Public University of Navarra, E-31006 Pamplona, Spain.
| | - Francisco Javier Arregui
- Department of Electric and Electronic Engineering, Public University of Navarra, E-31006 Pamplona, Spain.
- Institute of Smart Cities (ISC), Public University of Navarra, E-31006 Pamplona, Spain.
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34
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Alorabi AQ, Tarn MD, Gómez-Pastora J, Bringas E, Ortiz I, Paunov VN, Pamme N. On-chip polyelectrolyte coating onto magnetic droplets - towards continuous flow assembly of drug delivery capsules. LAB ON A CHIP 2017; 17:3785-3795. [PMID: 28991297 DOI: 10.1039/c7lc00918f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Polyelectrolyte (PE) microcapsules for drug delivery are typically fabricated via layer-by-layer (LbL) deposition of PE layers of alternating charge on sacrificial template microparticles, which usually requires multiple incubation and washing steps that render the process repetitive and time-consuming. Here, ferrofluid droplets were explored for this purpose as an elegant alternative of templates that can be easily manipulated via an external magnetic field, and require only a simple microfluidic chip design and setup. Glass microfluidic devices featuring T-junctions or flow focusing junctions for the generation of oil-based ferrofluid droplets in an aqueous continuous phase were investigated. Droplet size was controlled by the microfluidic channel dimensions as well as the flow rates of the ferrofluid and aqueous phases. The generated droplets were stabilised by a surface active polymer, polyvinylpyrrolidone (PVP), and then guided into a chamber featuring alternating, co-laminar PE solutions and wash streams, and deflected across them by means of an external permanent magnet. The extent of droplet deflection was tailored by the flow rates, the concentration of magnetic nanoparticles in the droplets, and the magnetic field strength. PVP-coated ferrofluid droplets were deflected through solutions of polyelectrolyte and washing streams using several iterations of multilaminar flow designs. This culminated in an innovative "Snakes-and-Ladders" inspired microfluidic chip design that overcame various issues of the previous iterations for the deposition of layers of anionic poly(sodium-4-styrene sulfonate) (PSS) and cationic poly(fluorescein isothiocyanate allylamine hydrochloride) (PAH-FITC) onto the droplets. The presented method demonstrates a simple and rapid process for PE layer deposition in <30 seconds, and opens the way towards rapid layer-by-layer assembly of PE microcapsules for drug delivery applications.
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Affiliation(s)
- Ali Q Alorabi
- School of Mathematics and Physical Sciences, University of Hull, Cottingham Road, Hull, HU6 7RX, UK.
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Liu X, Zheng H, Li G, Li H, Zhang P, Tong W, Gao C. Fabrication of polyurethane microcapsules with different shapes and their influence on cellular internalization. Colloids Surf B Biointerfaces 2017; 158:675-681. [DOI: 10.1016/j.colsurfb.2017.06.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 06/06/2017] [Accepted: 06/22/2017] [Indexed: 02/07/2023]
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Hong CY, Wu SX, Li SH, Liang H, Chen S, Li J, Yang HH, Tan W. Semipermeable Functional DNA-Encapsulated Nanocapsules as Protective Bioreactors for Biosensing in Living Cells. Anal Chem 2017; 89:5389-5394. [DOI: 10.1021/acs.analchem.7b00081] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Cheng-Yi Hong
- MOE
Key Laboratory for Analytical Science of Food Safety and Biology,
Fujian Provincial Key Laboratory of Analysis and Detection Technology
for Food Safety, State Key Laboratory of Photocatalysis on Energy
and Environment, College of Chemistry, Fuzhou University, Fuzhou 350002, China
- Department
of Chemistry and Department of Physiology and Functional Genomics,
Center for Research at the Bio/Nano Interface, UF Health Cancer Center, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Shu-Xian Wu
- MOE
Key Laboratory for Analytical Science of Food Safety and Biology,
Fujian Provincial Key Laboratory of Analysis and Detection Technology
for Food Safety, State Key Laboratory of Photocatalysis on Energy
and Environment, College of Chemistry, Fuzhou University, Fuzhou 350002, China
| | - Shi-Hua Li
- MOE
Key Laboratory for Analytical Science of Food Safety and Biology,
Fujian Provincial Key Laboratory of Analysis and Detection Technology
for Food Safety, State Key Laboratory of Photocatalysis on Energy
and Environment, College of Chemistry, Fuzhou University, Fuzhou 350002, China
| | - Hong Liang
- MOE
Key Laboratory for Analytical Science of Food Safety and Biology,
Fujian Provincial Key Laboratory of Analysis and Detection Technology
for Food Safety, State Key Laboratory of Photocatalysis on Energy
and Environment, College of Chemistry, Fuzhou University, Fuzhou 350002, China
| | - Shan Chen
- MOE
Key Laboratory for Analytical Science of Food Safety and Biology,
Fujian Provincial Key Laboratory of Analysis and Detection Technology
for Food Safety, State Key Laboratory of Photocatalysis on Energy
and Environment, College of Chemistry, Fuzhou University, Fuzhou 350002, China
| | - Juan Li
- MOE
Key Laboratory for Analytical Science of Food Safety and Biology,
Fujian Provincial Key Laboratory of Analysis and Detection Technology
for Food Safety, State Key Laboratory of Photocatalysis on Energy
and Environment, College of Chemistry, Fuzhou University, Fuzhou 350002, China
- Molecular
Sciences and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering and
College of Biology, Collaborative Innovation Center for Molecular
Engineering and Theranostics, Hunan University, Changsha 410082, China
| | - Huang-Hao Yang
- MOE
Key Laboratory for Analytical Science of Food Safety and Biology,
Fujian Provincial Key Laboratory of Analysis and Detection Technology
for Food Safety, State Key Laboratory of Photocatalysis on Energy
and Environment, College of Chemistry, Fuzhou University, Fuzhou 350002, China
| | - Weihong Tan
- Molecular
Sciences and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing
and Chemometrics, College of Chemistry and Chemical Engineering and
College of Biology, Collaborative Innovation Center for Molecular
Engineering and Theranostics, Hunan University, Changsha 410082, China
- Department
of Chemistry and Department of Physiology and Functional Genomics,
Center for Research at the Bio/Nano Interface, UF Health Cancer Center, University of Florida, Gainesville, Florida 32611-7200, United States
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Laguna M, Escudero A, Núñez NO, Becerro AI, Ocaña M. Europium-doped NaGd(WO4)2 nanophosphors: synthesis, luminescence and their coating with fluorescein for pH sensing. Dalton Trans 2017; 46:11575-11583. [DOI: 10.1039/c7dt01986f] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Uniform nanospheres of Eu : NaGd(WO4)2 have been synthesized and further coated with fluorescein to develop a ratiometric pH sensor for biotechnological applications.
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Affiliation(s)
- Mariano Laguna
- Instituto de Ciencia de Materiales de Sevilla
- CSIC-US
- Sevilla
- Spain
| | - Alberto Escudero
- Instituto de Ciencia de Materiales de Sevilla
- CSIC-US
- Sevilla
- Spain
| | - Nuria O. Núñez
- Instituto de Ciencia de Materiales de Sevilla
- CSIC-US
- Sevilla
- Spain
| | - Ana I. Becerro
- Instituto de Ciencia de Materiales de Sevilla
- CSIC-US
- Sevilla
- Spain
| | - Manuel Ocaña
- Instituto de Ciencia de Materiales de Sevilla
- CSIC-US
- Sevilla
- Spain
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Carrillo-Carrion C, Escudero A, Parak WJ. Optical sensing by integration of analyte-sensitive fluorophore to particles. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2016.05.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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39
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Yu KK, Li K, Qin HH, Zhou Q, Qian CH, Liu YH, Yu XQ. Construction of pH-Sensitive "Submarine" Based on Gold Nanoparticles with Double Insurance for Intracellular pH Mapping, Quantifying of Whole Cells and in Vivo Applications. ACS APPLIED MATERIALS & INTERFACES 2016; 8:22839-22848. [PMID: 27532147 DOI: 10.1021/acsami.6b06331] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A series of "submarines", which composed of gold nanoparticles and modified with rhodamine and fluorescein derivatives, were presented. With dual sensitive units for both acidic and basic environment, these "gold nano-submarines" not only allow efficient intracellular pH mapping but also provide more accurate quantitative detection of pH alteration under different stimuli with distinct pH quantification range. Moreover, they even have the ability to pass through the blood brain barrier (BBB).
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Affiliation(s)
- Kang-Kang Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University , Chengdu 610064, China
| | - Kun Li
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University , Chengdu 610064, China
| | - Hui-Huan Qin
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University , Chengdu 610064, China
| | - Qian Zhou
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University , Chengdu 610064, China
| | - Chen-Hui Qian
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University , Chengdu 610064, China
| | - Yan-Hong Liu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University , Chengdu 610064, China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University , Chengdu 610064, China
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Li H, Zhang W, Tong W, Gao C. Enhanced Cellular Uptake of Bowl-like Microcapsules. ACS APPLIED MATERIALS & INTERFACES 2016; 8:11210-4. [PMID: 27119770 DOI: 10.1021/acsami.6b02965] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Among several properties of colloidal particles, shape is emerging as an important parameter for tailoring the interactions between particles and cells. In this study, bowl-like multilayer microcapsules were prepared by osmotic-induced invagination of their spherical counterparts in a concentrated polyelectrolyte solution. The internalization behaviors of bowl-like and spherical microcapsules were compared by coincubation with smooth muscle cells (SMCs) and macrophages. The bowl-like capsules tended to attach onto the cell membranes from the bend side and could be enwrapped by the membranes of SMCs, leading to a faster uptake rate and larger accumulation inside cells than those of their spherical counterparts. These results are important for understanding the shape-dependent internalization behavior, providing useful guidance for further materials design especially in biomedical applications.
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Affiliation(s)
- Huiying Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou 310027 China
| | - Wenbo Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou 310027 China
| | - Weijun Tong
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou 310027 China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou 310027 China
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41
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Tang Q, Denton AR. Ion density deviations in semipermeable ionic microcapsules. Phys Chem Chem Phys 2016; 17:11070-6. [PMID: 25826392 DOI: 10.1039/c5cp00974j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
By implementing the nonlinear Poisson-Boltzmann theory in a cell model, we theoretically investigate the influence of polyelectrolye gel permeability on ion densities and pH deviations inside the cavities of ionic microcapsules. Our calculations show that variations in permeability of a charged capsule shell cause a redistribution of ion densities within the capsule, which ultimately affects the pH deviation and Donnan potential induced by the electric field of the shell. We find that semipermeable capsules can induce larger pH deviations inside their cavities that can permeable capsules. Furthermore, with increasing capsule charge, the influence of permeability on pH deviations progressively increases. Our theory, while providing a self-consistent method for modeling the influence of permeability on fundamental properties of ionic microgels, makes predictions of practical significance for the design of microcapsules loaded with fluorescent dyes, which can serve as biosensors for diagnostic purposes.
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Affiliation(s)
- Qiyun Tang
- Department of Physics, North Dakota State University, Fargo, ND 58108-6050, USA.
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42
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Yuan YH, Liu ZX, Li RS, Zou HY, Lin M, Liu H, Huang CZ. Synthesis of nitrogen-doping carbon dots with different photoluminescence properties by controlling the surface states. NANOSCALE 2016; 8:6770-6776. [PMID: 26955862 DOI: 10.1039/c6nr00402d] [Citation(s) in RCA: 135] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Surface states of carbon dots (CDs) are critical to the photoemission properties of CDs. By carefully adjusting the reaction conditions in a hydrothermal synthesis route, we have prepared a series of CDs with excitation-dependent emission (EDE) and excitation-independent emission (EIE) properties by controlling the content of nitrogen elements, confirming that the characteristic optical properties of CDs originate from their energy levels. It has been found that surface-passivation of the as-prepared CDs by nitrogen doping can improve the emission efficiency and be beneficial to EIE features due to the single electron transition resulting from the single functional groups. And the as-prepared CDs can specifically bind with Hg(2+) with the emission quenched because of the electron transfer from the LUMO levels of CDs to Hg(2+).
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Affiliation(s)
- Yun Huan Yuan
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Ze Xi Liu
- College of Pharmaceutical Science, Southwest University, Chongqing 400716, China.
| | - Rong Sheng Li
- College of Pharmaceutical Science, Southwest University, Chongqing 400716, China.
| | - Hong Yan Zou
- College of Pharmaceutical Science, Southwest University, Chongqing 400716, China.
| | - Min Lin
- College of Pharmaceutical Science, Southwest University, Chongqing 400716, China.
| | - Hui Liu
- College of Pharmaceutical Science, Southwest University, Chongqing 400716, China.
| | - Cheng Zhi Huang
- Key Laboratory on Luminescence and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China. and College of Pharmaceutical Science, Southwest University, Chongqing 400716, China.
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43
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Photo-responsive polyethyleneimine microcapsules cross-linked by ortho -nitrobenzyl derivatives. J Colloid Interface Sci 2016; 463:22-8. [DOI: 10.1016/j.jcis.2015.10.041] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 10/15/2015] [Accepted: 10/15/2015] [Indexed: 12/30/2022]
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44
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D'souza SL, Deshmukh B, Bhamore JR, Rawat KA, Lenka N, Kailasa SK. Synthesis of fluorescent nitrogen-doped carbon dots from dried shrimps for cell imaging and boldine drug delivery system. RSC Adv 2016. [DOI: 10.1039/c5ra24621k] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Fluorescent N-doped carbon dots were synthesized using dried shrimps as precursors and rationally fabricated as a traceable drug delivery system for the targeted delivery of boldine to human breast cancer cells (MCF-7 cells).
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Affiliation(s)
| | - Balaji Deshmukh
- National Center for Cell Science
- NCCS Complex
- Pune University Campus
- Pune-411 007
- India
| | - Jigna R. Bhamore
- Department of Chemistry
- S. V. National Institute of Technology
- Surat–395007
- India
| | - Karuna A. Rawat
- Department of Chemistry
- S. V. National Institute of Technology
- Surat–395007
- India
| | - Nibedita Lenka
- National Center for Cell Science
- NCCS Complex
- Pune University Campus
- Pune-411 007
- India
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45
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Qiu J, Zhang R, Li J, Sang Y, Tang W, Rivera Gil P, Liu H. Fluorescent graphene quantum dots as traceable, pH-sensitive drug delivery systems. Int J Nanomedicine 2015; 10:6709-24. [PMID: 26604747 PMCID: PMC4630193 DOI: 10.2147/ijn.s91864] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Graphene quantum dots (GQDs) were rationally fabricated as a traceable drug delivery system for the targeted, pH-sensitive delivery of a chemotherapeutic drug into cancer cells. The GQDs served as fluorescent carriers for a well-known anticancer drug, doxorubicin (Dox). The whole system has the capacity for simultaneous tracking of the carrier and of drug release. Dox release is triggered upon acidification of the intracellular vesicles, where the carriers are located after their uptake by cancer cells. Further functionalization of the loaded carriers with targeting moieties such as arginine-glycine-aspartic acid (RGD) peptides enhanced their uptake by cancer cells. DU-145 and PC-3 human prostate cancer cell lines were used to evaluate the anticancer ability of Dox-loaded RGD-modified GQDs (Dox-RGD-GQDs). The results demonstrated the feasibility of using GQDs as traceable drug delivery systems with the ability for the pH-triggered delivery of drugs into target cells.
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Affiliation(s)
- Jichuan Qiu
- Center of Bio and Micro/Nano Functional Materials, State Key Laboratory of Crystal Materials, Shandong University, Jinan, People’s Republic of China
| | - Ruibin Zhang
- Blood Purification Center, Jinan Central Hospital, Shandong University School of Medicine, Jinan, People’s Republic of China
| | - Jianhua Li
- Center of Bio and Micro/Nano Functional Materials, State Key Laboratory of Crystal Materials, Shandong University, Jinan, People’s Republic of China
| | - Yuanhua Sang
- Center of Bio and Micro/Nano Functional Materials, State Key Laboratory of Crystal Materials, Shandong University, Jinan, People’s Republic of China
| | - Wei Tang
- Department of Pathogenic Biology, Shandong University School of Medicine, Jinan, People’s Republic of China
| | - Pilar Rivera Gil
- Institute of Chemistry, Rovira i Virgili University, Tarragona, Spain
| | - Hong Liu
- Center of Bio and Micro/Nano Functional Materials, State Key Laboratory of Crystal Materials, Shandong University, Jinan, People’s Republic of China
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, People’s Republic of China
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46
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Liu W, Wang X, Bai K, Lin M, Sukhorukov G, Wang W. Microcapsules functionalized with neuraminidase can enter vascular endothelial cells in vitro. J R Soc Interface 2015; 11:20141027. [PMID: 25339691 DOI: 10.1098/rsif.2014.1027] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Microcapsules made of polyelectrolyte multilayers exhibit no or low toxicity, appropriate mechanical stability, variable controllable degradation and can incorporate remote release mechanisms triggered by various stimuli, making them well suited for targeted drug delivery to live cells. This study investigates interactions between microcapsules made of synthetic (i.e. polystyrenesulfonate sodium salt/polyallylamine hydrochloride) or natural (i.e. dextran sulfate/poly-L-arginine) polyelectrolyte and human umbilical vein endothelial cells with particular focus on the effect of the glycocalyx layer on the intake of microcapsules by endothelial cells. Neuraminidase cleaves N-acetyl neuraminic acid residues of glycoproteins and targets the sialic acid component of the glycocalyx on the cell membrane. Three-dimensional confocal images reveal that microcapsules, functionalized with neuraminidase, can be internalized by endothelial cells. Capsules without neuraminidase are blocked by the glycocalyx layer. Uptake of the microcapsules is most significant in the first 2 h. Following their internalization by endothelial cells, biodegradable DS/PArg capsules rupture by day 5; however, there is no obvious change in the shape and integrity of PSS/PAH capsules within the period of observation. Results from the study support our hypothesis that the glycocalyx functions as an endothelial barrier to cross-membrane movement of microcapsules. Neuraminidase-loaded microcapsules can enter endothelial cells by localized cleavage of glycocalyx components with minimum disruption of the glycocalyx layer and therefore have high potential to act as drug delivery vehicles to reach tissues beyond the endothelial barrier of blood vessels.
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Affiliation(s)
- Weizhi Liu
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, UK
| | - Xiaocong Wang
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, UK
| | - Ke Bai
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, UK
| | - Miao Lin
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, UK
| | - Gleb Sukhorukov
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, UK School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK
| | - Wen Wang
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, UK School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK
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Parks A, Charest-Morin X, Boivin-Welch M, Bouthillier J, Marceau F. Autophagic flux inhibition and lysosomogenesis ensuing cellular capture and retention of the cationic drug quinacrine in murine models. PeerJ 2015; 3:e1314. [PMID: 26500823 PMCID: PMC4614855 DOI: 10.7717/peerj.1314] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 09/21/2015] [Indexed: 11/23/2022] Open
Abstract
The proton pump vacuolar (V)-ATPase is the driving force that mediates the concentration of cationic drugs (weak bases) in the late endosome-lysosome continuum; secondary cell reactions include the protracted transformation of enlarged vacuoles into autophagosomes. We used the inherently fluorescent tertiary amine quinacrine in murine models to further assess the accumulation and signaling associated with cation trapping. Primary fibroblasts concentrate quinacrine ∼5,000-fold from their culture medium (KM 9.8 µM; transport studies). The drug is present in perinuclear granules that are mostly positive for Rab7 and LAMP1 (microscopy). Both drug uptake and retention are extensively inhibited by treatments with the V-ATPase inhibitor bafilomycin A1. The H+ ionophore monensin also prevented quinacrine concentration by fibroblasts. However, inhibition of plasma membrane transporters or of the autophagic process with spautin-1 did not alter quinacrine transport parameters. Ancillary experiments did not support that low micromolar concentrations of quinacrine are substrates for organic cation transporters-1 to -3 or P-glycoprotein. The secondary autophagy induced by quinacrine in cells may derive from the accumulation of incompetent autophagolysosomes, as judged from the accumulation of p62/SQSTM1 and LC3 II (immunoblots). Accordingly, protracted lysosomogenesis is evidenced by increased expression of LAMP1 and LAMP2 in quinacrine-treated fibroblasts (48 h, immunoblots), a response that follows the nuclear translocation of the lysosomal genesis transcription factor TFEB and upregulation of LAMP1 and −2 mRNAs (24 h). Quinacrine administration to live mice evidenced variable distribution to various organs and heterogeneous accumulation within the lung (stereo-microscopy, extraction). Dose-dependent in vivo autophagic and lysosomal accumulation was observed in the lung (immunoblots). No evidence has been found for transport or extrusion mechanisms modulating the cellular uptake of micromolar quinacrine at the plasma membrane level. As shown in vitro and in vivo, V-ATPase-mediated cation sequestration is associated, above a certain threshold, to autophagic flux inhibition and feed-back lysosomogenesis.
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Affiliation(s)
- Alexandre Parks
- Research Center CHU de Québec, Université Laval , Quebec City QC , Canada
| | | | | | | | - Francois Marceau
- Research Center CHU de Québec, Université Laval , Quebec City QC , Canada
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48
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FRET-Based Nanobiosensors for Imaging Intracellular Ca²⁺ and H⁺ Microdomains. SENSORS 2015; 15:24662-80. [PMID: 26404317 PMCID: PMC4610457 DOI: 10.3390/s150924662] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 09/14/2015] [Accepted: 09/16/2015] [Indexed: 01/10/2023]
Abstract
Semiconductor nanocrystals (NCs) or quantum dots (QDs) are luminous point emitters increasingly being used to tag and track biomolecules in biological/biomedical imaging. However, their intracellular use as highlighters of single-molecule localization and nanobiosensors reporting ion microdomains changes has remained a major challenge. Here, we report the design, generation and validation of FRET-based nanobiosensors for detection of intracellular Ca2+ and H+ transients. Our sensors combine a commercially available CANdot®565QD as an energy donor with, as an acceptor, our custom-synthesized red-emitting Ca2+ or H+ probes. These ‘Rubies’ are based on an extended rhodamine as a fluorophore and a phenol or BAPTA (1,2-bis(o-aminophenoxy)ethane-N,N,N′,N′-tetra-acetic acid) for H+ or Ca2+ sensing, respectively, and additionally bear a linker arm for conjugation. QDs were stably functionalized using the same SH/maleimide crosslink chemistry for all desired reactants. Mixing ion sensor and cell-penetrating peptides (that facilitate cytoplasmic delivery) at the desired stoichiometric ratio produced controlled multi-conjugated assemblies. Multiple acceptors on the same central donor allow up-concentrating the ion sensor on the QD surface to concentrations higher than those that could be achieved in free solution, increasing FRET efficiency and improving the signal. We validate these nanosensors for the detection of intracellular Ca2+ and pH transients using live-cell fluorescence imaging.
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49
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Schäferling M. Nanoparticle-based luminescent probes for intracellular sensing and imaging of pH. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2015; 8:378-413. [PMID: 26395962 DOI: 10.1002/wnan.1366] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 07/06/2015] [Accepted: 07/22/2015] [Indexed: 12/13/2022]
Abstract
Fluorescence imaging microscopy is an essential tool in biomedical research. Meanwhile, various fluorescent probes are available for the staining of cells, cell membranes, and organelles. Though, to monitor intracellular processes and dysfunctions, probes that respond to ubiquitous chemical parameters determining the cellular function such as pH, pO2 , and Ca(2+) are required. This review is focused on the progress in the design, fabrication, and application of photoluminescent nanoprobes for sensing and imaging of pH in living cells. The advantages of using nanoprobes carrying fluorescent pH indicators compared to single molecule probes are discussed as well as their limitations due to the mostly lysosomal uptake by cells. Particular attention is paid to ratiometric dual wavelength nanosensors that enable intrinsic referenced measurements. Referencing and proper calibration procedures are basic prerequisites to carry out reliable quantitative pH determinations in complex samples such as living cells. A variety of examples will be presented that highlight the diverseness of nanocarrier materials (polymers, micelles, silica, quantum dots, carbon dots, gold, photon upconversion nanocrystals, or bacteriophages), fluorescent pH indicators for the weak acidic range, and referenced sensing mechanisms, that have been applied intracellularly up to now. WIREs Nanomed Nanobiotechnol 2016, 8:378-413. doi: 10.1002/wnan.1366 For further resources related to this article, please visit the WIREs website.
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Affiliation(s)
- Michael Schäferling
- Division 1.10 Biophotonics, Federal Institute for Materials Research and Testing, Berlin, Germany
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Tung CH, Qi J, Hu L, Han MS, Kim Y. A Quick Responsive Fluorogenic pH Probe for Ovarian Tumor Imaging. Theranostics 2015; 5:1166-74. [PMID: 26284146 PMCID: PMC4533099 DOI: 10.7150/thno.12813] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 07/09/2015] [Indexed: 12/25/2022] Open
Abstract
A novel cell-permeable compound, CypH-1, that is non-fluorescent at neutral pH, but fluoresces under mildly acidic conditions with a near infrared maximum emission wavelength was designed for the detection of tumors in the clinical setting. The potential of CypH-1 in ovarian cancer imaging was demonstrated using a murine model. The intraperitoneally administered CypH-1 results in a robust fluorescence signal of discrete neoplastic lesions with millimeter range resolution within few hours. Moreover, fluorescence signal is strikingly enhanced at peripheral regions of tumors at the microscopic level suggesting a sharp physiological difference at the tumor/normal tissue interface. This robust acid-activated imaging agent is expected to have significant impact in broad surgical and diagnostic applications.
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