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Grijalvo S, Rodriguez-Abreu C. Polymer nanoparticles from low-energy nanoemulsions for biomedical applications. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2023; 14:339-350. [PMID: 36959976 PMCID: PMC10028572 DOI: 10.3762/bjnano.14.29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 03/02/2023] [Indexed: 06/18/2023]
Abstract
The formulation of nanoemulsions by low-energy strategies, particularly by the phase inversion composition method, and the use of these nanoemulsions as templates for the preparation of polymer nanoparticles for biomedical applications are reviewed. The methods of preparation, nature of the components in the formulation, and their impact on the physicochemical properties, drug loading, and drug release are discussed. We highlight the utilization of ethyl cellulose, poly(lactic-co-glycolic acid), and polyurethane/polyurea in the field of nanomedicine as potential drug delivery systems. Advances are still needed to achieve better control over size distribution, nanoparticle concentration, surface functionalization, and the type of polymers that can be processed.
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Affiliation(s)
| | - Carlos Rodriguez-Abreu
- CIBER-BBN, ISCIII, Jordi Girona 18–26, 08034 Barcelona, Spain
- Instituto de Quimica Avanzada de Cataluña (IQAC), CSIC, Jordi Girona 18–26, 08034 Barcelona, Spain
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2
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Ma Z, Song Z, Jiang Q, Lv W. Novel method for microencapsulation of oxalic acid with ethyl cellulose shell for sustained-release performance. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125064] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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3
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Unique and outstanding quantum dots (QD)/tunicate cellulose nanofibrils (TCNF) nanohybrid platform material for use as 1D ink and 2D film. Carbohydr Polym 2020; 242:116396. [PMID: 32564848 DOI: 10.1016/j.carbpol.2020.116396] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/26/2020] [Accepted: 04/28/2020] [Indexed: 12/30/2022]
Abstract
Quantum dots (QD)/polymer materials have wide applications in biological imaging, clinical diagnostics, anti-counterfeiting materials, light-emitting devices and solar cells. The development of QD/cellulose nanofibrils (CNF) hybrids with a more perfect structure and excellent properties is important for improving known applications. A unique tunicate CNF (TCNF) was homogeneously blended with outstanding CdSe/CdS core/shell QD to prepare a novel QD/TCNF hybrid. The QD were monodispersed on a single TCNF fibril surface as an evenly distributed monolayer with an extremely high packing density and no visible aggregation. The prepared hybrid is an excellent platform nanomaterial which was demonstrated by its good writing fidelity when applied as a 1D ink and by its good processability in the preparation of 2D films with acceptable transparency and flexibility. This one-step direct blending approach provides a facile shortcut to effectively fabricate cellulose-based high-performance functional QD nanomaterials at the single-fibril level.
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Hajba-Horváth E, Biró E, Mirankó M, Fodor-Kardos A, Trif L, Feczkó T. Preparation and in vitro characterization of valsartan-loaded ethyl cellulose and poly(methyl methacrylate) nanoparticles. RSC Adv 2020; 10:43915-43926. [PMID: 35517152 PMCID: PMC9058329 DOI: 10.1039/d0ra07218d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 11/25/2020] [Indexed: 01/28/2023] Open
Abstract
Valsartan is an antihypertensive drug used primarily orally, however, due to its hydrophobic nature it has got low bio-availability thus requiring higher dosage/frequency and causing more side effects. The aim of our work was to prepare valsartan-loaded nanoparticles by using ethyl cellulose and poly(methyl methacrylate) polymers which can be administered orally and to investigate the preparation conditions and their significance as potential drug carriers for valsartan delivery by in vitro release studies. Ethyl cellulose and poly(methyl methacrylate) polymers were used for the preparation of nanoparticles by single emulsion-solvent evaporation technique. The formation of drug-loaded nanoparticles was designed by experimental design for size and encapsulation efficiency, in addition the prepared nanosuspensions were nano spray dried in order to gain a powder form that is easy to handle and store. Both of the nano spray dried formulations had an amorphous structure in contrast to the pure drug according to differential scanning calorimetry and X-ray diffraction analysis, which can be advantageous in drug absorption. The originally processed ethyl cellulose-valsartan nanoparticles increased the solubility of the drug in the model intestinal medium, while poly(methyl methacrylate)-valsartan nanoparticles enabled substantially prolonged drug release. The release kinetics of both types of nanoparticles could be described by the Weibull model. Valsartan-loaded ethyl cellulose and poly(methyl methacrylate) nanoparticles were prepared and nano spray-dried. The active agent was structurally changed in the nanoparticles, which could be advantageous in the intestinal absorption.![]()
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Affiliation(s)
- Eszter Hajba-Horváth
- Research Institute of Biomolecular and Chemical Engineering
- Faculty of Engineering
- University of Pannonia
- Veszprém
- Hungary
| | - Emese Biró
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Budapest
- Hungary
| | - Mirella Mirankó
- Research Institute of Biomolecular and Chemical Engineering
- Faculty of Engineering
- University of Pannonia
- Veszprém
- Hungary
| | - Andrea Fodor-Kardos
- Research Institute of Biomolecular and Chemical Engineering
- Faculty of Engineering
- University of Pannonia
- Veszprém
- Hungary
| | - László Trif
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Budapest
- Hungary
| | - Tivadar Feczkó
- Research Institute of Biomolecular and Chemical Engineering
- Faculty of Engineering
- University of Pannonia
- Veszprém
- Hungary
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5
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Calderó G, Leitner S, García-Celma M, Solans C. Modulating size and surface charge of ethylcellulose nanoparticles through the use of cationic nano-emulsion templates. Carbohydr Polym 2019; 225:115201. [DOI: 10.1016/j.carbpol.2019.115201] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 08/01/2019] [Accepted: 08/12/2019] [Indexed: 01/25/2023]
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6
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Leitner S, Grijalvo S, Solans C, Eritja R, García-Celma MJ, Calderó G. Ethylcellulose nanoparticles as a new "in vitro" transfection tool for antisense oligonucleotide delivery. Carbohydr Polym 2019; 229:115451. [PMID: 31826509 DOI: 10.1016/j.carbpol.2019.115451] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/02/2019] [Accepted: 10/04/2019] [Indexed: 02/06/2023]
Abstract
Oil-in-water nano-emulsions have been obtained in the HEPES 20 mM buffer solution / [Alkylamidoammonium:Kolliphor EL = 1:1] / [6 wt% ethylcellulose in ethyl acetate] system over a wide oil-to-surfactant range and above 35 wt% aqueous component at 25 °C. The nano-emulsion with an oil-to-surfactant ratio of 70/30 and 95 wt% aqueous component was used for nanoparticles preparation. These nanoparticles (mean diameter around 90 nm and zeta potential of +22 mV) were non-toxic to HeLa cells up to a concentration of 3 mM of cationic species. Successful complexation with an antisense phosphorothioate oligonucleotide targeting Renilla luciferase mRNA was achieved at cationic/anionic charge ratios above 16, as confirmed by zeta potential measurements and an electrophoretic mobility shift assay, provided that no Fetal Bovine Serum is present in the cell culture medium. Importantly, Renilla luciferase gene inhibition shows an optimum efficiency (40%) for the cationic/anionic ratio 28, which makes these complexes promising for "in vitro" cell transfection.
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Affiliation(s)
- S Leitner
- Institut de Química Avançada de Catalunya (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain; Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Barcelona, Spain
| | - S Grijalvo
- Institut de Química Avançada de Catalunya (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain; Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Barcelona, Spain
| | - C Solans
- Institut de Química Avançada de Catalunya (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain; Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Barcelona, Spain
| | - R Eritja
- Institut de Química Avançada de Catalunya (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain; Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Barcelona, Spain
| | - M J García-Celma
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Barcelona, Spain; Departament de Farmàcia i Tecnologia Farmacèutica i Fisicoquímica, Univ. de Barcelona, IN2UB, Unitat Associada d'I+D al CSIC, Av Joan XXIII, s/n, 08028 Barcelona, Spain
| | - G Calderó
- Institut de Química Avançada de Catalunya (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain.
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7
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Multifunctional polymer dispersions for biomedical assays obtained by heterophase radical polymerization. Russ Chem Bull 2018. [DOI: 10.1007/s11172-018-2289-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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8
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Generalova AN, Zubov VP. Design of polymer particle dispersions (latexes) in the course of radical heterophase polymerization for biomedical applications. Colloids Surf B Biointerfaces 2018; 166:303-322. [PMID: 29604573 DOI: 10.1016/j.colsurfb.2018.03.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 03/18/2018] [Accepted: 03/24/2018] [Indexed: 10/17/2022]
Abstract
Dispersions of polymer particle (DPPs) are increasingly being exploited both as biomolecule carriers, and as markers in various DPP biomedical applications related to cell and molecular biology, enzymology, immunology, diagnostics, in vitro and in vivo visualization, bioseparation, etc. Their potential to reduce reaction scales, lower costs, improve the rate, sensitivity, selectivity, stability and reproducibility of assays governs the diversity of their bioapplications. This review focuses on the design of DPPs with innovative special properties in the course of free radical heterophase polymerization that provides careful control of both macromolecular and colloidal properties. We demonstrate approaches that, according to the polymerization technique, regulate the particle size, shape, particle size distribution, morphology, surface chemistry and functionality, as well as the formation of organic-inorganic hybrid DPPs. The production of bioreagents based on DPPs and their use in bioassay are also reviewed.
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Affiliation(s)
- A N Generalova
- M.M. Shemyakin & Yu.A. Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997, Miklukho-Maklaya 16/10, Moscow, Russia; Scientific Research Centre "Crystallography and Photonics" of the Russian Academy of Sciences, 119333, Leninsky pr. 59, Moscow, Russia.
| | - V P Zubov
- M.M. Shemyakin & Yu.A. Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997, Miklukho-Maklaya 16/10, Moscow, Russia
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9
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Bizmark N, Ioannidis MA. Ethyl Cellulose Nanoparticles at the Alkane-Water Interface and the Making of Pickering Emulsions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:10568-10576. [PMID: 28862863 DOI: 10.1021/acs.langmuir.7b02051] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Pickering emulsions stabilized by nanoparticles have recently received great attention for their remarkable stability, in part a consequence of irreversible adsorption. In this study, we generate Pickering oil-in-water emulsions stabilized by ethyl cellulose (EC) nanoparticles without the addition of surfactants. Over a range of ionic strength and EC nanoparticle concentrations, a series of dynamic interfacial tension (IFT) measurements complemented by extended DLVO theoretical computations are conducted to quantitatively describe the behavior of EC nanoparticles at the interface of water with different alkanes. Regardless of ionic strength, there is no barrier against the adsorption of EC nanoparticles at the alkane-water interfaces studied and the particles tightly cover these interfaces with near maximal coverage (i.e., 91%). Remarkably, the rate of approach to maximum coverage of the alkane-water interface by EC nanoparticles during the later stages of adsorption is accelerated in the presence of salt at concentrations below the critical coagulation concentration (CCC), unlike the air-water interface. Above the CCC, alkane-water interfaces behave similar to air-water interfaces, showing decay in the adsorption flux which is attributed to an increase in surface blocking originating from the attachment of nanoparticles to nanoparticles already adsorbed at the interface. These findings shed light on particle-particle and particle-interface colloidal interactions at and near fluid-fluid interfaces, thereby improving our ability to use hydrophobic EC nanoparticles as emulsion stabilizers.
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Affiliation(s)
- Navid Bizmark
- Department of Chemical Engineering, University of Waterloo , 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Marios A Ioannidis
- Department of Chemical Engineering, University of Waterloo , 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
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10
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Rowland CE, Brown CW, Delehanty JB, Medintz IL. Nanomaterial-based sensors for the detection of biological threat agents. MATERIALS TODAY (KIDLINGTON, ENGLAND) 2016; 19:464-477. [PMID: 32288600 PMCID: PMC7108310 DOI: 10.1016/j.mattod.2016.02.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The danger posed by biological threat agents and the limitations of modern detection methods to rapidly identify them underpins the need for continued development of novel sensors. The application of nanomaterials to this problem in recent years has proven especially advantageous. By capitalizing on large surface/volume ratios, dispersability, beneficial physical and chemical properties, and unique nanoscale interactions, nanomaterial-based biosensors are being developed with sensitivity and accuracy that are starting to surpass traditional biothreat detection methods, yet do so with reduced sample volume, preparation time, and assay cost. In this review, we start with an overview of bioagents and then highlight the breadth of nanoscale sensors that have recently emerged for their detection.
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Affiliation(s)
- Clare E. Rowland
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, DC 20375, USA
- National Research Council, Washington, DC 20036, USA
| | - Carl W. Brown
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, DC 20375, USA
- College of Science, George Mason University, Fairfax, VA 22030, USA
| | - James B. Delehanty
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Igor L. Medintz
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, DC 20375, USA
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11
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Tiwari A, Dhoble SJ. Stabilization of ZnS nanoparticles by polymeric matrices: syntheses, optical properties and recent applications. RSC Adv 2016. [DOI: 10.1039/c6ra13108e] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
ZnS nanocomposites is a promising area of research for designing novel functional hybrid materials due to their unique optical and electronic properties. This review emphasizes on the synthesis, optical studies and potential applications.
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Affiliation(s)
- Ashish Tiwari
- Department of Chemistry
- Government Lahiri College
- India
| | - S. J. Dhoble
- Department of Physics
- RTM Nagpur University
- Nagpur-440033
- India
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12
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Zhao XF, Winter WT. Cellulose/Cellulose-Based Nanospheres: Perspectives and Prospective. Ind Biotechnol (New Rochelle N Y) 2015. [DOI: 10.1089/ind.2014.0030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Xing Fei Zhao
- Department of Chemistry and Cellulose Research Institute, State University of New York College of Environmental Science and Forestry (SUNY-ESF), Syracuse, NY
| | - William T. Winter
- Department of Chemistry and Cellulose Research Institute, State University of New York College of Environmental Science and Forestry (SUNY-ESF), Syracuse, NY
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13
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Pinto RJB, Carlos LD, Marques PAAP, Silvestre AJD, Freire CSR. An overview of luminescent bio-based composites. J Appl Polym Sci 2014. [DOI: 10.1002/app.41169] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ricardo J. B. Pinto
- Department of Chemistry, CICECO; University of Aveiro; 3810-193 Aveiro Portugal
| | - Luís D. Carlos
- Department of Physics, CICECO; University of Aveiro; 3810-193 Aveiro Portugal
| | - Paula A. A. P. Marques
- Department of Mechanical Engineering, TEMA; University of Aveiro; 3810-193 Aveiro Portugal
| | | | - Carmen S. R. Freire
- Department of Chemistry, CICECO; University of Aveiro; 3810-193 Aveiro Portugal
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14
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Zheng W, Chen S, Zhao S, Zheng Y, Wang H. Zinc sulfide nanoparticles template by bacterial cellulose and their optical properties. J Appl Polym Sci 2014. [DOI: 10.1002/app.40874] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Weili Zheng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of Textile Science & Technology (Ministry of Education), College of Materials Science and Engineering, Donghua University; Shanghai 201620 People's Republic of China
| | - Shiyan Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of Textile Science & Technology (Ministry of Education), College of Materials Science and Engineering, Donghua University; Shanghai 201620 People's Republic of China
| | - Siyu Zhao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of Textile Science & Technology (Ministry of Education), College of Materials Science and Engineering, Donghua University; Shanghai 201620 People's Republic of China
| | - Yi Zheng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of Textile Science & Technology (Ministry of Education), College of Materials Science and Engineering, Donghua University; Shanghai 201620 People's Republic of China
| | - Huaping Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of Textile Science & Technology (Ministry of Education), College of Materials Science and Engineering, Donghua University; Shanghai 201620 People's Republic of China
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15
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Tkacheva NI, Morozov SV, Grigor’ev IA, Mognonov DM, Kolchanov NA. Modification of cellulose as a promising direction in the design of new materials. POLYMER SCIENCE SERIES B 2013. [DOI: 10.1134/s1560090413070063] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Abd-Elrahman MI, Ahmed MO, Abdel-Aleem JA. Optical properties of cellulose derivatives blend film carrying a chalcogenide material. MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING 2013; 16:1052-1056. [DOI: 10.1016/j.mssp.2013.02.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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17
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Pikulev V, Loginova S, Gurtov V. Luminescence properties of silicon-cellulose nanocomposite. NANOSCALE RESEARCH LETTERS 2012; 7:426. [PMID: 22849811 PMCID: PMC3464184 DOI: 10.1186/1556-276x-7-426] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Accepted: 07/19/2012] [Indexed: 06/01/2023]
Abstract
We have characterized the structure and luminescence properties for two-component material composed of nanocrystalline cellulose and nanocrystalline (less to 100 nm) silicon powder. An efficient and stable photoluminescence of nanocomposite, resistant to the influence of gas-phase oxidants, has been found. The obtained material has electret-like properties and demonstrates the possibility of multiple-recharging in an electric field near 5·103 V/cm at temperatures ranging from -70°C to 100°C. The presence of the electric field, as well as ozone or low-temperature plasma treatment, does not change the luminescence spectrum due to quantum size properties of silicon nanoparticles. We believe that these particles may appear in two states: both embedded in a cellulose matrix and in the form of mechanical mixture.
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Affiliation(s)
- Vitaly Pikulev
- Department of Solid State Physics, Petrozavodsk State University, Petrozavodsk, 185640, Russia
| | - Svetlana Loginova
- Department of Solid State Physics, Petrozavodsk State University, Petrozavodsk, 185640, Russia
| | - Valery Gurtov
- Department of Solid State Physics, Petrozavodsk State University, Petrozavodsk, 185640, Russia
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18
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Generalova AN, Oleinikov VA, Sukhanova A, Artemyev MV, Zubov VP, Nabiev I. Quantum dot-containing polymer particles with thermosensitive fluorescence. Biosens Bioelectron 2012; 39:187-93. [PMID: 22884648 DOI: 10.1016/j.bios.2012.07.030] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Revised: 07/17/2012] [Accepted: 07/18/2012] [Indexed: 10/28/2022]
Abstract
Composite polymer particles consisting of a solid poly(acrolein-co-styrene) core and a poly(N-vinylcaprolactam) (PVCL) polymer shell doped with CdSe/ZnS semiconductor quantum dots (QDs) were fabricated. The temperature response of the composite particles was observed as a decrease in their hydrodynamic diameter upon heating above the lower critical solution temperature of the thermosensitive PVCL polymer. Embedding QDs in the PVCL shell yields particles whose fluorescence is sensitive to temperature changes. This sensitivity was determined by the dependence of the QD fluorescence intensity on the distances between them in the PVCL shell, which reversibly change as a result of the temperature-driven conformational changes in the polymer. The QD-containing thermosensitive particles were assembled with protein molecules in such a way that they retained their thermosensitive properties, including the completely reversible temperature dependence of their fluorescence response. The composite particles developed can be used as local temperature sensors, as carriers for biomolecules, as well as in biosensing and various bioassays employing optical detection schemes.
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Affiliation(s)
- Alla N Generalova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russian Federation
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19
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20
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Oleinikov VA. Fluorescent semiconductor nanocrystals (quantum dots) in protein biochips. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2011; 37:171-89. [DOI: 10.1134/s1068162011020117] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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21
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Douma K, Megens RTA, van Zandvoort MAMJ. Optical molecular imaging of atherosclerosis using nanoparticles: shedding new light on the darkness. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2011; 3:376-88. [DOI: 10.1002/wnan.139] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kim Douma
- Department of Biomedical Engineering, Maastricht University Medical Centre, Maastricht, The Netherlands
- Department of Radiology, Maastricht University Medical Centre, Maastricht, The Netherlands
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Remco T. A. Megens
- Institute for Cardiovascular Prevention, Ludwig‐Maximilians‐University, Munich, Germany
- Institute for Molecular Cardiovascular Research (IMCAR), Interdisciplinary Centre for Clinical Research, RWTH Aachen University, Aachen, Germany
| | - Marc A. M. J. van Zandvoort
- Department of Biomedical Engineering, Maastricht University Medical Centre, Maastricht, The Netherlands
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, Maastricht, The Netherlands
- Institute for Molecular Cardiovascular Research (IMCAR), Interdisciplinary Centre for Clinical Research, RWTH Aachen University, Aachen, Germany
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22
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Luna-Martínez J, Hernández-Uresti D, Reyes-Melo M, Guerrero-Salazar C, González-González V, Sepúlveda-Guzmán S. Synthesis and optical characterization of ZnS–sodium carboxymethyl cellulose nanocomposite films. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2010.12.021] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Bruce IJ. Novel and Improved Nanomaterials, Chemistries and Apparatus for Nanobiotechnology: the NACBO Project. Nanomedicine (Lond) 2011; 6:187-93. [DOI: 10.2217/nnm.10.155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This article outlines the nature and activities of the recently completed EU Framework Programme 6 Integrated Project, Novel and Improved Nanomaterials, Chemistries and Apparatus for Nanobiotechnology (NACBO). This project was designed to yield new nanomaterials, surface activation and synthetic nucleic acid chemistries, procedures and hardware for applications in forensics and diagnostics. It provides details on the project’s structure and partnership along with its principal objectives and successes in terms of publications and commercial exploitation.
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Affiliation(s)
- Ian James Bruce
- Nanobiotechnology Research Group, School of Biosciences, University of Kent, Canterbury, Kent, CT2 7NJ, UK
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24
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Calderó G, García-Celma MJ, Solans C. Formation of polymeric nano-emulsions by a low-energy method and their use for nanoparticle preparation. J Colloid Interface Sci 2011; 353:406-11. [DOI: 10.1016/j.jcis.2010.09.073] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2010] [Revised: 09/23/2010] [Accepted: 09/24/2010] [Indexed: 10/19/2022]
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