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Goldberg LA, Zomer HD, McFetridge C, McFetridge PS. Silica nanoparticles enhance interfacial self-adherence of a multi-layered extracellular matrix scaffold for vascular tissue regeneration. Biotechnol Lett 2024; 46:469-481. [PMID: 38368285 DOI: 10.1007/s10529-024-03469-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 12/03/2023] [Accepted: 01/10/2024] [Indexed: 02/19/2024]
Abstract
PURPOSE Based on the clinical need for grafts for vascular tissue regeneration, our group developed a customizable scaffold derived from the human amniotic membrane. Our approach consists of rolling the decellularized amniotic membrane around a mandrel to form a multilayered tubular scaffold with tunable diameter and wall thickness. Herein, we aimed to investigate if silica nanoparticles (SiNP) could enhance the adhesion of the amnion layers within these rolled grafts. METHODS To test this, we assessed the structural integrity and mechanical properties of SiNP-treated scaffolds. Mechanical tests were repeated after six months to evaluate adhesion stability in aqueous environments. RESULTS Our results showed that the rolled SiNP-treated scaffolds maintained their tubular shape upon hydration, while non-treated scaffolds collapsed. By scanning electron microscopy, SiNP-treated scaffolds presented more densely packed layers than untreated controls. Mechanical analysis showed that SiNP treatment increased the scaffold's tensile strength up to tenfold in relation to non-treated controls and changed the mechanism of failure from interfacial slipping to single-point fracture. The nanoparticles reinforced the scaffolds both at the interface between two distinct layers and within each layer of the extracellular matrix. Finally, SiNP-treated scaffolds significantly increased the suture pullout force in comparison to untreated controls. CONCLUSION Our study demonstrated that SiNP prevents the unraveling of a multilayered extracellular matrix graft while improving the scaffolds' overall mechanical properties. In addition to the generation of a robust biomaterial for vascular tissue regeneration, this novel layering technology is a promising strategy for a number of bioengineering applications.
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Affiliation(s)
- Leslie A Goldberg
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Biomedical Sciences Building JG-56, 1275 Center Drive, Gainesville, FL, 32611-6131, USA
| | - Helena D Zomer
- Department of Physiological Sciences, University of Florida, Gainesville, FL, USA
| | - Calum McFetridge
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Biomedical Sciences Building JG-56, 1275 Center Drive, Gainesville, FL, 32611-6131, USA
| | - Peter S McFetridge
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Biomedical Sciences Building JG-56, 1275 Center Drive, Gainesville, FL, 32611-6131, USA.
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2
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Jongert TK, Slowinski IA, Dao B, Cortez VH, Gredig T, Plascencia ND, Tian F. Zeta Potential and Size Analysis of Zeolitic Imidazolate Framework-8 Nanocrystals Prepared by Surfactant-Assisted Synthesis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:6138-6148. [PMID: 38488140 DOI: 10.1021/acs.langmuir.3c03193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
The crystal nucleation and growth mechanism of monodispersed metal-organic framework nanoparticles were studied using time-resolved light dynamic, electrokinetic, and powder X-ray diffraction methods. We confirmed that zeolitic imidazolate framework-8 (ZIF-8) nanocrystals follow a nonclassical crystal growth pathway, where a fast nucleation occurs with dense liquid clusters or nanocrystals forming spontaneously when two precursors are mixed. We also explored the zeta potential and solvodynamic size changes of ZIF-8 prepared by a surfactant-assisted synthesis. Three modulators, including 1-methylimidazole (1-mIm), tris(hydroxymethyl)aminomethane (THAM), and (1-hexadecyl)trimethylammonium bromide (CTAB), were studied. We found that 1-mIm dramatically increases the rate of nucleation of ZIF-8. With an increasing amount of 1-mIm, which functions as a coordination modulator, the size increases, and the zeta potential of ZIF-8 decreases. Whereas THAM, as both a coordination and a deprotonation modulator, increases the size and zeta potential of ZIF-8 simultaneously, CTAB, as a long alkyl cationic surfactant, mainly adsorbs on the surface of ZIF-8, and the zeta potential of the formed ZIF-8 is controlled by the amount of CTAB in solution compared with its critical micelle concentration. Overall, we reveal that the modulator type and concentration can be used to control the size and zeta potential of the dispersed ZIF-8 nanocrystals in a colloid system. The experiments also enable identification of the nucleation and crystal growth processes of ZIF-8. The findings will be applicable to other nanocrystals in colloid systems, which are used for heterogeneous catalysis and guest molecular loadings.
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Affiliation(s)
- Tristan K Jongert
- Department of Chemistry & Biochemistry, California State University Long Beach, Long Beach, California 90840, United States
| | - Ian A Slowinski
- Department of Chemistry & Biochemistry, California State University Long Beach, Long Beach, California 90840, United States
| | - Benjamin Dao
- Department of Chemistry & Biochemistry, California State University Long Beach, Long Beach, California 90840, United States
| | - Victor H Cortez
- Department of Chemistry & Biochemistry, California State University Long Beach, Long Beach, California 90840, United States
| | - Thomas Gredig
- Department of Physics & Astronomy, California State University Long Beach, Long Beach, California 90840, United States
| | - Nestor D Plascencia
- Department of Physics & Astronomy, California State University Long Beach, Long Beach, California 90840, United States
| | - Fangyuan Tian
- Department of Chemistry & Biochemistry, California State University Long Beach, Long Beach, California 90840, United States
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3
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Jammor P, Sanguanphun T, Meemon K, Promdonkoy B, Boonserm P. Biosynthesis of Cry5B-Loaded Sulfur Nanoparticles using Arthrobotrys oligospora Filtrate: Effects on Nematicidal Activity, Thermal Stability, and Pathogenicity against Caenorhabditis elegans. ACS OMEGA 2024; 9:6945-6954. [PMID: 38371837 PMCID: PMC10870406 DOI: 10.1021/acsomega.3c08653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/24/2024] [Accepted: 01/26/2024] [Indexed: 02/20/2024]
Abstract
Cry5B, a crystal protein produced by Bacillus thuringiensis (Bt), is a bionematicide with potent nematicidal activity against various plant-parasitic and free-living nematodes. This protein, however, is susceptible to destruction by ultraviolet light, proteolytic enzymes, and high temperatures. This study aims to produce Cry5B protein for bionematicidal use and improve its stability and nematicidal efficacy by loading it intoArthrobotrys oligospora-mediated sulfur nanoparticles (AO-SNPs). Based on the mortality assay, the Cry5B protein exhibited dose-dependent nematicidal activity against the model organismCaenorhabditis elegans. The nematicidal activity, thermal stability, and pathogenic effects of Cry5B-loaded AO-SNPs (Cry5B-SNPs) were compared to those of free Cry5B. After 3 h of exposure to heat at 60 °C, Cry5B-SNPs had greater nematicidal activity than free Cry5B protein, indicating the effective formulation of Cry5B-SNPs that could be used as an alternative to current nematicide delivery strategies.
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Affiliation(s)
- Pasin Jammor
- Institute
of Molecular Biosciences, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand
| | - Tanatcha Sanguanphun
- Department
of Anatomy, Faculty of Science, Mahidol
University, Rama VI Road, Bangkok 10400, Thailand
| | - Krai Meemon
- Department
of Anatomy, Faculty of Science, Mahidol
University, Rama VI Road, Bangkok 10400, Thailand
| | - Boonhiang Promdonkoy
- National
Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, 113 Phahonyothin Road, Khlong
Luang, Pathumthani 12120, Thailand
| | - Panadda Boonserm
- Institute
of Molecular Biosciences, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand
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4
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Kumar S, Ganguly R, Nath S, Aswal VK. Pluronic Induced Interparticle Attraction and Re-entrant Liquid-Liquid Phase Separation in Charged Silica Nanoparticle Suspensions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023. [PMID: 37269303 DOI: 10.1021/acs.langmuir.3c00491] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Tuning surface properties of nanoparticles by introducing charge, surface functionalization, or polymer grafting is central to their stability and applications. Here, we show that introducing non-DLVO forces like steric and hydrophobic effects in charged silica nanoparticle suspensions through interaction with a nonionic surfactant brings about interesting modulations in their interparticle interaction and phase behavior. The Ludox TM-40 negatively charged silica suspensions thus exhibit liquid-liquid phase separation driven by the onset of interparticle attraction in the system in the presence of the triblock copolymer Pluronic P123. The observed phase separations are thermoresponsive in nature, as they are associated with lower consolute temperatures and a re-entrant behavior as a function of temperature. The nanoparticle-Pluronic system thus undergoes transformation from one-phase to two-phase and then back to one-phase with monotonic increase in temperature. Evolution of the interparticle interaction in the composite system is investigated by dynamic light scattering (DLS), small angle neutron scattering (SANS), zeta potential, rheological, and fluorescence spectroscopy studies. Zeta potential studies show that the charge interaction in the system is partially mitigated through adsorption of a Pluronic micellar layer on the nanoparticle surfaces. Contrast-matching SANS studies suggest that hydrophobic interactions between the adsorbed micellar layer bring about the onset of interparticle attraction in the system. The results are unique and not reported hitherto in charged silica nanoparticle systems.
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Affiliation(s)
- S Kumar
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - R Ganguly
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - S Nath
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - V K Aswal
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
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Li J, Dong J, Huang Y, Su J, Xie Y, Wu Y, Tang W, Li Y, Huang W, Chen C. Aggregation Kinetics of TiO 2 Nanoparticles in Human and Artificial Sweat Solutions: Effects of Particle Properties and Sweat Constituents. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:17153-17165. [PMID: 36242560 DOI: 10.1021/acs.est.2c05237] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Dermal penetration potentials of titanium dioxide nanoparticles (TiO2 NPs) may be affected by aggregation upon contact with sweat. This study investigated the aggregation kinetics of three TiO2 NPs in thirty human sweat samples and four artificial sweat standards. Effects of particle concentration, sweat type, and inorganic (sodium chloride, disodium hydrogen phosphate, and sodium dihydrogen phosphate) and organic (l-histidine, lactic acid, and urea) constituents were examined. Three TiO2 NPs remained colloidally stable in >20/30 human sweat samples and showed significant negative correlations (P < 0.01) between aggregation rates and |zeta potentials|. They aggregated rapidly over 20 min to >750 nm in three artificial sweat standards, while remained more stable in the International-Standard-Organization-pH-5.5 standard. Aggregation behaviors of three TiO2 NPs mostly followed the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory, allowing for determining their critical coagulation concentrations in inorganic constituents (15-491 mM) and Hamaker constants (3.3-7.9 × 10-21 J). Higher concentrations of particles, inorganic constituents, and l-histidine destabilized three TiO2 NPs, whereas urea inhibited aggregation. Three TiO2 NPs adsorbed organic sweat constituents via complexation with amino or carboxyl groups, with isotherms following the Langmuir model. Correlation analyses further suggested that the adsorbed organic constituents may stabilize three TiO2 NPs against aggregation in sweat by steric hindrance.
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Affiliation(s)
- Jing Li
- College of Natural Resources and Environment, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, South China Agricultural University, 483 Wushan Road, Guangzhou, Guangdong 510642, China
- School of Environment, Beijing Jiaotong University, 3 Shangyuancun, Haidian District, Beijing 100044, China
| | - Jiawei Dong
- College of Natural Resources and Environment, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, South China Agricultural University, 483 Wushan Road, Guangzhou, Guangdong 510642, China
| | - Yanshan Huang
- College of Natural Resources and Environment, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, South China Agricultural University, 483 Wushan Road, Guangzhou, Guangdong 510642, China
| | - Jiana Su
- College of Natural Resources and Environment, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, South China Agricultural University, 483 Wushan Road, Guangzhou, Guangdong 510642, China
| | - Yu Xie
- College of Natural Resources and Environment, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, South China Agricultural University, 483 Wushan Road, Guangzhou, Guangdong 510642, China
- Department of Civil and Environmental Engineering, College of Design and Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Singapore
| | - Yundang Wu
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Wei Tang
- College of Natural Resources and Environment, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, South China Agricultural University, 483 Wushan Road, Guangzhou, Guangdong 510642, China
| | - Yongtao Li
- College of Natural Resources and Environment, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, South China Agricultural University, 483 Wushan Road, Guangzhou, Guangdong 510642, China
| | - Weilin Huang
- Department of Environmental Sciences, Rutgers, The State University of New Jersey, 14 College Farm Road, New Brunswick, New Jersey 08901, United States
| | - Chengyu Chen
- College of Natural Resources and Environment, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, South China Agricultural University, 483 Wushan Road, Guangzhou, Guangdong 510642, China
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Alvarado JF, Rozo DF, Chaparro LM, Medina JA, Salcedo-Galán F. Synthesis and Characterization of Reproducible Linseed Oil-Loaded Silica Nanoparticles with Potential Use as Oxygen Scavengers in Active Packaging. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3257. [PMID: 36145045 PMCID: PMC9502869 DOI: 10.3390/nano12183257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/22/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
Commercially available oxygen scavengers used to prevent lipid autoxidation, microbial growth and enzymatic browning in food products present several issues, which include the usage of metals and their moisture dependence to work properly. We present the synthesis and characterization of a moisture-independent oil-based oxygen scavenging system comprised of linseed oil and silica nanoparticles. The system was synthesized via sol-gel chemistry and was characterized using morphological analysis (SEM, AFM, TEM, and N2 adsorption/desorption), oil-loading analysis (TGA), and surface analysis (ζ-potential and ATR-FTIR). Performance of the system was evaluated through headspace measurements and reproducibility of synthetic procedure was verified using six replicates. Nanoparticles showed the desired spherical shape with a diameter of (122.7 ± 42.7 nm) and mesoporosity (pore diameter = 3.66 ± 0.08 nm), with an encapsulation efficiency of 33.9 ± 1.5% and a highly negative ζ-potential (-56.1 ± 1.2 mV) in basic solution. Performance of the system showed a promising high value for oxygen absorption of 25.8 ± 4.5 mL O2/g of encapsulated oil (8.3 ± 1.5 mL O2/g of nanocapsules) through a moisture independent mechanism, which suggests that the synthesized system can be used as an oxygen scavenger in dry atmosphere conditions.
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Affiliation(s)
- Juan Felipe Alvarado
- Materials and Manufacturing Research Group (CIPP-CIPEM), Department of Chemical Engineering, Universidad de los Andes, Bogota 111711, Colombia
| | - Daniel Fernando Rozo
- Materials and Manufacturing Research Group (CIPP-CIPEM), Department of Chemical Engineering, Universidad de los Andes, Bogota 111711, Colombia
| | - Luis Miguel Chaparro
- Materials and Manufacturing Research Group (CIPP-CIPEM), Department of Chemical Engineering, Universidad de los Andes, Bogota 111711, Colombia
| | - Jorge Alberto Medina
- Materials and Manufacturing Research Group (CIPP-CIPEM), Department of Mechanical Engineering, Universidad de los Andes, Bogota 111711, Colombia
| | - Felipe Salcedo-Galán
- Materials and Manufacturing Research Group (CIPP-CIPEM), Department of Chemical Engineering, Universidad de los Andes, Bogota 111711, Colombia
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7
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Maleki Dizaj S, Sharifi S, Tavakoli F, Hussain Y, Forouhandeh H, Hosseiniyan Khatibi SM, Memar MY, Yekani M, Khan H, Goh KW, Ming LC. Curcumin-Loaded Silica Nanoparticles: Applications in Infectious Disease and Food Industry. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12162848. [PMID: 36014710 PMCID: PMC9414236 DOI: 10.3390/nano12162848] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/10/2022] [Accepted: 08/13/2022] [Indexed: 05/12/2023]
Abstract
Curcumin has multiple properties that are used to cure different diseases such as cancer, infections, inflammatory, arthritic disease, etc. Despite having many effects, the inherent physicochemical properties-such as poor water solubility, chemical instability, low bioavailability, photodegradation, fast metabolism, and short half-life-of curcumin's derivatives have limited its medical importance. Recently, unprecedented advances in biomedical nanotechnology have led to the development of nanomaterial-based drug delivery systems in the treatment of diseases and diagnostic goals that simultaneously enhance therapeutic outcomes and avoid side effects. Mesoporous silica nanoparticles (MSNs) are promising drug delivery systems for more effective and safer treatment of several diseases, such as infections, cancers, and osteoporosis. Achieving a high drug loading in MSNs is critical to the success of this type of treatment. Their notable inherent properties-such as adjustable size and porosity, high pore volume, large surface area, functionality of versatile surfaces, as well as biocompatibility-have prompted extraordinary research on MSNs as multi-purpose delivery platforms. In this review, we focused on curcumin-loaded silica nanoparticles and their effects on the diagnosis and treatment of infections as well as their use in food packaging.
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Affiliation(s)
- Solmaz Maleki Dizaj
- Department of Dental Biomaterials, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz 5165665931, Iran
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz 5165665931, Iran
| | - Simin Sharifi
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz 5165665931, Iran
- Correspondence: (S.S.); (H.K.)
| | - Fatemeh Tavakoli
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz 5165665931, Iran
| | - Yaseen Hussain
- Lab of Controlled Release and Drug Delivery System, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Haleh Forouhandeh
- Molecular Medicine Research Center, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz 5165665931, Iran
| | | | - Mohammad Yousef Memar
- Kidney Research Center, Tabriz University of Medical Sciences, Tabriz 5165665931, Iran
| | - Mina Yekani
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz 5165665931, Iran
- Department of Microbiology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan 8715988141, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan 8715988141, Iran
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University, Mardan 23200, Pakistan
- Correspondence: (S.S.); (H.K.)
| | - Khang Wen Goh
- Faculty of Data Science and Information Technology, INTI International University, Nilai 78100, Malaysia
| | - Long Chiau Ming
- PAP Rashidah Sa’adatul Bolkiah Institute of Health Sciences, Universiti Brunei Darussalam, Bandar Seri Begawan BE 1410, Brunei
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8
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Molecularly Imprinted Polymers Exhibit Low Cytotoxic and Inflammatory Properties in Macrophages In Vitro. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12126091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Molecularly imprinted polymers (MIPs) against sialic acid (SA) have been developed as a detection tool to target cancer cells. Before proceeding to in vivo studies, a better knowledge of the overall effects of MIPs on the innate immune system is needed. The aim of this study thus was to exemplarily assess whether SA-MIPs lead to inflammatory and/or cytotoxic responses when administered to phagocytosing cells in the innate immune system. The response of monocytic/macrophage cell lines to two different reference particles, Alhydrogel and PLGA, was compared to their response to SA-MIPs. In vitro culture showed a cellular association of SA-MIPs and Alhydrogel, as analyzed by flow cytometry. The reference particle Alhydrogel induced secretion of IL-1β from the monocytic cell line THP-1, whereas almost no secretion was provoked for SA-MIPs. A reduced number of both THP-1 and RAW 264.7 cells were observed after incubation with SA-MIPs and this was not caused by cytotoxicity. Digital holographic cytometry showed that SA-MIP treatment affected cell division, with much fewer cells dividing. Thus, the reduced number of cells after SA-MIP treatment was not linked to SA-MIPs cytotoxicity. In conclusion, SA-MIPs have a low degree of inflammatory properties, are not cytotoxic, and can be applicable for future in vivo studies.
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9
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Hussain B, Kasinath V, Madsen JC, Bromberg J, Tullius SG, Abdi R. Intra-Organ Delivery of Nanotherapeutics for Organ Transplantation. ACS NANO 2021; 15:17124-17136. [PMID: 34714050 PMCID: PMC9050969 DOI: 10.1021/acsnano.1c04707] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Targeted delivery of therapeutics through the use of nanoparticles (NPs) has emerged as a promising method that increases their efficacy and reduces their side effects. NPs can be tailored to localize to selective tissues through conjugation to ligands that bind cell-specific receptors. Although the vast majority of nanodelivery platforms have focused on cancer therapy, efforts have begun to introduce nanotherapeutics to the fields of immunology as well as transplantation. In this review, we provide an overview from a clinician's perspective of current nanotherapeutic strategies to treat solid organ transplants with NPs during the time interval between organ harvest from the donor and placement into the recipient, an innovative technology that can provide major benefits to transplant patients. The use of ex vivo normothermic machine perfusion (NMP), which is associated with preserving the function of the organ following transplantation, also provides an ideal opportunity for a localized, sustained, and controlled delivery of nanotherapeutics to the organ during this critical time period. Here, we summarize previous endeavors to improve transplantation outcomes by treating the organ with NPs prior to placement in the recipient. Investigations in this burgeoning field of research are promising, but more extensive studies are needed to overcome the physiological challenges to achieving effective nanotherapeutic delivery to transplanted organs discussed in this review.
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Affiliation(s)
- Bilal Hussain
- Transplantation Research Center and Division of Renal Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Vivek Kasinath
- Transplantation Research Center and Division of Renal Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Joren C. Madsen
- Department of Surgery and Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Jonathan Bromberg
- Departments of Surgery and Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Stefan G. Tullius
- Transplant Surgery Research Laboratory and Division of Transplant Surgery, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Reza Abdi
- Transplantation Research Center and Division of Renal Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA
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10
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Xu J, Bland GD, Gu Y, Ziaei H, Xiao X, Deonarine A, Reible D, Bireta P, Hoelen TP, Lowry GV. Impacts of Sediment Particle Grain Size and Mercury Speciation on Mercury Bioavailability Potential. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:12393-12402. [PMID: 34505768 DOI: 10.1021/acs.est.1c03572] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Particle-specific properties, including size and chemical speciation, affect the reactivity of mercury (Hg) in natural systems (e.g., dissolution or methylation). Here, terrestrial, river, and marine sediments were size-fractionated and characterized to correlate particle-specific properties of Hg-bearing solids with their bioavailability potential and measured biomethylation. Marine sediments contained ∼20-50% of the total Hg in the <0.5 μm size fraction, compared to only 0.5 and 3.0% in this size fraction for terrestrial and river sediments, respectively. X-ray absorption spectroscopy (XAS) analysis indicated that metacinnabar (β-HgS) was the main mercury species in a marine sediment, whereas organic Hg-thiol (Hg(SR)2) was the main mercury species in a terrestrial sediment. Single-particle inductively coupled plasma time-of-flight mass spectrometry analysis of the marine sediment suggests that half of the Hg in the <0.5 μm size fraction existed as individual nanoparticles, which were β-HgS based on XAS analyses. Glutathione-extractable mercury was higher for samples containing Hg(SR)2 species than β-HgS species and correlated well with the amount of Hg biomethylation. This particle-scale understanding of how Hg speciation and particle size affect mercury bioavailability potential helps explain the heterogeneity in Hg methylation in natural sediments.
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Affiliation(s)
- Jiang Xu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
- Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
- Center for Environmental Implications of Nanotechnology, Pittsburgh, Pennsylvania 15213, United States
| | - Garret D Bland
- Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
- Center for Environmental Implications of Nanotechnology, Pittsburgh, Pennsylvania 15213, United States
| | - Yuan Gu
- Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Hasti Ziaei
- Department of Civil, Environmental, & Construction Engineering, Texas Tech University, Lubbock, Texas 79409, United States
| | - Xiaoyue Xiao
- Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Amrika Deonarine
- Department of Civil, Environmental, & Construction Engineering, Texas Tech University, Lubbock, Texas 79409, United States
| | - Danny Reible
- Department of Civil, Environmental, & Construction Engineering, Texas Tech University, Lubbock, Texas 79409, United States
| | - Paul Bireta
- Chevron Technical Center (a Chevron U.S.A. Inc. Division), San Ramon, California 94583, United States
| | - Thomas P Hoelen
- Chevron Technical Center (a Chevron U.S.A. Inc. Division), San Ramon, California 94583, United States
| | - Gregory V Lowry
- Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
- Center for Environmental Implications of Nanotechnology, Pittsburgh, Pennsylvania 15213, United States
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11
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Whittle E, Martín-Illana A, Cazorla-Luna R, Notario-Perez F, Veiga-Ochoa MD, Rubio J, Tamayo A. Silane Modification of Mesoporous Materials for the Optimization of Antiviral Drug Adsorption and Release Capabilities in Vaginal Media. Pharmaceutics 2021; 13:1416. [PMID: 34575491 PMCID: PMC8468001 DOI: 10.3390/pharmaceutics13091416] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/26/2021] [Accepted: 08/31/2021] [Indexed: 11/29/2022] Open
Abstract
Three different functionalities have been incorporated into mesoporous materials by means of a coupling reaction with the siloxanes 3-glycidoxypropyl-trimethoxysilane (GLYMO), 3-methacryloxypropyl-trimethoxysilane (MEMO), and 3-mercaptopropyl-trimethoxysilane (MPTMS). The disposition of the different functional groups, as well as the interaction mechanism, with the mesoporous substrate has been identified. The amount of the antiviral drug acyclovir (ACV) adsorbed depends not only on the available surface area but also on the chemical or physicochemical interactions between functionalities. The drug adsorption isotherm of the materials functionalized with GLYMO and MPTMS follow mechanisms dependent on the different surface coverage and the possibilities to establish physicochemical interactions between the drug molecule and the functionalities. On the contrary, when functionalizing with MEMO, the dominant adsorption mechanism is characteristic of chemically bonded adsorbates. The ACV release kinetics is best fitted to the Weibull model in all the functionalized materials. When the MTPMS is used as a functionalizing agent, the drug diffusion occurs at low kinetics and homogeneously along the mesoporous channels.
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Affiliation(s)
- Elena Whittle
- Faculty of Chemistry, Universidad Complutense de Madrid, Av. Complutense, s/n, 28040 Madrid, Spain;
| | - Araceli Martín-Illana
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Universidad Complutense de Madrid, Plaza Ramón y Cajal s.n, 28007 Madrid, Spain; (A.M.-I.); (R.C.-L.); (F.N.-P.); (M.D.V.-O.)
| | - Raul Cazorla-Luna
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Universidad Complutense de Madrid, Plaza Ramón y Cajal s.n, 28007 Madrid, Spain; (A.M.-I.); (R.C.-L.); (F.N.-P.); (M.D.V.-O.)
| | - Fernando Notario-Perez
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Universidad Complutense de Madrid, Plaza Ramón y Cajal s.n, 28007 Madrid, Spain; (A.M.-I.); (R.C.-L.); (F.N.-P.); (M.D.V.-O.)
| | - María Dolores Veiga-Ochoa
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Universidad Complutense de Madrid, Plaza Ramón y Cajal s.n, 28007 Madrid, Spain; (A.M.-I.); (R.C.-L.); (F.N.-P.); (M.D.V.-O.)
| | - Juan Rubio
- Institute of Ceramics and Glass, CSIC, Kelsen 5, 28049 Madrid, Spain;
| | - Aitana Tamayo
- Institute of Ceramics and Glass, CSIC, Kelsen 5, 28049 Madrid, Spain;
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12
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Pipich V, Starc T, Buitenhuis J, Kasher R, Petry W, Oren Y, Schwahn D. Silica Fouling in Reverse Osmosis Systems- Operando Small-Angle Neutron Scattering Studies. MEMBRANES 2021; 11:membranes11060413. [PMID: 34070912 PMCID: PMC8230220 DOI: 10.3390/membranes11060413] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/20/2021] [Accepted: 05/27/2021] [Indexed: 11/16/2022]
Abstract
We present operando small-angle neutron scattering (SANS) experiments on silica fouling at two reverse osmose (RO) membranes under almost realistic conditions of practiced RO desalination technique. To its realization, two cells were designed for pressure fields and tangential feed cross-flows up to 50 bar and 36 L/h, one cell equipped with the membrane and the other one as an empty cell to measure the feed solution in parallel far from the membrane. We studied several aqueous silica dispersions combining the parameters of colloidal radius, volume fraction, and ionic strength. A relevant result is the observation of Bragg diffraction as part of the SANS scattering pattern, representing a crystalline cake layer of simple cubic lattice structure. Other relevant parameters are silica colloidal size and volume fraction far from and above the membrane, as well as the lattice parameter of the silica cake layer, its volume fraction, thickness, and porosity in comparison with the corresponding permeate flux. The experiments show that the formation of cake layer depends to a large extent on colloidal size, ionic strength and cross-flow. Cake layer formation proved to be a reversible process, which could be dissolved at larger cross-flow. Only in one case we observed an irreversible cake layer formation showing the characteristics of an unstable phase transition. We likewise observed enhanced silica concentration and/or cake formation above the membrane, giving indication of a first order liquid-solid phase transformation.
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Affiliation(s)
- Vitaliy Pipich
- Jülich Centre for Neutron Science JCNS-FRM II, Outstation at FRM II, Lichtenbergstr. 1, D-85747 Garching, Germany;
| | - Thomas Starc
- Neutron Scattering and Soft Matter (JCNS-1/IBI-8), Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany;
| | - Johan Buitenhuis
- Biomacromolecular Systems and Processes (IBI-4), Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany;
| | - Roni Kasher
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion 8499000, Israel; (R.K.); (Y.O.)
| | - Winfried Petry
- Heinz Maier-Leibnitz-Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, D-85748 Garching, Germany;
| | - Yoram Oren
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion 8499000, Israel; (R.K.); (Y.O.)
| | - Dietmar Schwahn
- Neutron Scattering and Soft Matter (JCNS-1/IBI-8), Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany;
- Correspondence:
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13
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Dong K, Zhao ZZ, Kang J, Lin LR, Chen WT, Liu JX, Wu XL, Lu TL. Cinnamaldehyde and Doxorubicin Co-Loaded Graphene Oxide Wrapped Mesoporous Silica Nanoparticles for Enhanced MCF-7 Cell Apoptosis. Int J Nanomedicine 2020; 15:10285-10304. [PMID: 33376322 PMCID: PMC7756203 DOI: 10.2147/ijn.s283981] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 11/24/2020] [Indexed: 12/16/2022] Open
Abstract
Background Combined chemotherapy is often affected by the different physicochemical properties of chemotherapeutic drugs, which should be improved by the reasonable design of co-loaded preparations. Purpose A kind of simple but practical graphene oxide (GO) wrapped mesoporous silica nanoparticles (MSN) modified with hyaluronic acid (MSN@GO-HA) were developed for the co-delivery of cinnamaldehyde (CA) and doxorubicin (DOX), in order to enhance their combined treatment on tumor cells and reduce their application defects. Methods The MSNCA@GODOX-HA was constructed by MSNCA (loading CA via physical diffusion) and GODOX-HA (modified with HA and loading DOX via π–π stacking) through the electrostatic adsorption, followed by the physicochemical characterization, serum stability and in vitro release study. Cytotoxicity on different cells was detected, followed by the tumor cell uptake tests. The intracellular reactive oxygen species (ROS) changes, mitochondrial functions and activities of caspase-3/-9 in MCF-7 cells were also evaluated, respectively. Results The MSNCA@GODOX-HA nanoparticles kept stable in FBS solution and achieved pH-responsive release behavior, which was beneficial to increase the accumulation of CA and DOX in tumor cells to enhance the treatment. MSNCA@GODOX-HA exerted higher cytotoxicity to MCF-7 human breast cancer cells than H9c2 cardiac myocyte cells, which were not only attributed to the active targeting to tumor cells by HA, but also related with the activation of intrinsic apoptotic pathway in MCF-7 cells induced by CA, which was mediated by the specific ROS signal amplification and the interference with mitochondrial function. Moreover, the efficacy of DOX was also enhanced by the above process. Conclusion The establishment of the MSNCA@GODOX-HA nanoparticles played a role in promoting strengths and restricting shortcomings of CA and DOX, thereby exerting their function and achieving efficient treatment against cancer.
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Affiliation(s)
- Kai Dong
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, People's Republic of China
| | - Zhuang-Zhuang Zhao
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, People's Republic of China
| | - Jian Kang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, People's Republic of China
| | - Lei-Ruo Lin
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, People's Republic of China
| | - Wen-Ting Chen
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, People's Republic of China
| | - Jin-Xi Liu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, People's Republic of China
| | - Xiang-Long Wu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, People's Republic of China
| | - Ting-Li Lu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, People's Republic of China
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14
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Bueno V, Ghoshal S. Self-Assembled Surfactant-Templated Synthesis of Porous Hollow Silica Nanoparticles: Mechanism of Formation and Feasibility of Post-Synthesis Nanoencapsulation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:14633-14643. [PMID: 33226821 DOI: 10.1021/acs.langmuir.0c02501] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
SiO2 is bioinert and highly functionalizable, thus making it a very attractive material for nanotechnology applications such as drug delivery and nanoencapsulation of pesticides. Herein, we synthesized porous hollow SiO2 nanoparticles (PHSNs) by using cetyltrimethylammonium bromide (CTAB) and Pluronic P123 as the structure-directing agents. The porosity and hollowness of the SiO2 structure allow for the protective and high-density loading of molecules of interest inside the nanoshell. We demonstrate here that loading can be achieved post-synthesis through the pores of the PHSNs. The PHSNs are monodisperse with a mean diameter of 258 nm and a specific surface area of 287 m2 g-1. The mechanism of formation of the PHSNs was investigated using 1-D and 2-D solid-state nuclear magnetic resonance (SS-NMR) and Fourier-transform infrared spectroscopy (FTIR). The data suggest that CTAB and Pluronic P123 interact, forming a hydrophobic spherical hollow cage that serves as a template for the porous hollow structure. After synthesis, the surfactants were removed by calcination at 550 °C and the PHSNs were added to an Fe3+ solution followed by addition of the reductant NaBH4 to the suspension, which led to the formation of Fe(0) NPs both on the PHSNs and inside the hollow shell, as confirmed by transmission electron microscopy imaging. The imaging of the formation of Fe(0) NPs inside the hollow shell provides direct evidence of transport of solute molecules across the shell and their reactions within the PHSNs, making it a versatile nanocarrier and nanoreactor.
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Affiliation(s)
- Vinicius Bueno
- Department of Civil Engineering, McGill University, Montreal, Quebec H3A 0C3, Canada
| | - Subhasis Ghoshal
- Department of Civil Engineering, McGill University, Montreal, Quebec H3A 0C3, Canada
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15
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Pullanchery S, Kulik S, Okur HI, de Aguiar HB, Roke S. On the stability and necessary electrophoretic mobility of bare oil nanodroplets in water. J Chem Phys 2020; 152:241104. [DOI: 10.1063/5.0009640] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Affiliation(s)
- S. Pullanchery
- Laboratory for Fundamental BioPhotonics, Institute of Bioengineering (IBI), Institute of Materials Science (IMX) and Engineering, School of Engineering (STI), and Lausanne Centre for Ultrafast Science, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - S. Kulik
- Laboratory for Fundamental BioPhotonics, Institute of Bioengineering (IBI), Institute of Materials Science (IMX) and Engineering, School of Engineering (STI), and Lausanne Centre for Ultrafast Science, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - H. I. Okur
- Laboratory for Fundamental BioPhotonics, Institute of Bioengineering (IBI), Institute of Materials Science (IMX) and Engineering, School of Engineering (STI), and Lausanne Centre for Ultrafast Science, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- Department of Chemistry and National Nanotechnology Research Center (UNAM), Bilkent University, 06800 Ankara, Turkey
| | - H. B. de Aguiar
- Laboratoire Kastler Brossel, ENS-Université PSL, CNRS, Sorbonne Université, Collège de France, 24 rue Lhomond, 75005 Paris, France
| | - S. Roke
- Laboratory for Fundamental BioPhotonics, Institute of Bioengineering (IBI), Institute of Materials Science (IMX) and Engineering, School of Engineering (STI), and Lausanne Centre for Ultrafast Science, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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16
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Yang Z, Zhong W, Chen Y, Wang C, Mo S, Zhang J, Shu R, Song Q. Improving Glycerol Photoreforming Hydrogen Production Over Ag 2O-TiO 2 Catalysts by Enhanced Colloidal Dispersion Stability. Front Chem 2020; 8:342. [PMID: 32509721 PMCID: PMC7248401 DOI: 10.3389/fchem.2020.00342] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Accepted: 04/01/2020] [Indexed: 11/19/2022] Open
Abstract
Solar-driven photocatalytic reforming of biomass-derived resources for hydrogen production offers a sustainable route toward the generation of clean and renewable fuels. However, the dispersion stability of the catalyst particles in the aqueous phase hinders the efficiency of hydrogen production. In this work, a novel method of mixing Ag2O-TiO2 photocatalysts with different morphologies was implemented to promote colloidal dispersion stability, thereby improving hydrogen production performance. A series of Ag2O-TiO2 nanoparticles with different morphologies were synthesized, and their dispersion stabilities in aqueous phase were investigated individually. Two types of Ag2O-TiO2 particles with different morphologies under certain proportions were mixed and suspended in glycerol aqueous solution without adding any dispersant for enhancing dispersion stability while reacting. From the results, photocatalytic hydrogen production was found to be strongly correlated to colloidal dispersion stability. The mixed suspension of Ag2O-TiO2 nanosphere and nanoplate achieved an excellent colloidal dispersion stability without employing any additives or external energy input, and the photoreforming hydrogen production obtained from this binary component system was around 1.1-2.3 times higher than that of the single-component system. From the calculated hydrogen production rate constants between continuous stirring and the binary system, there was only <6% difference, suggesting an efficient mass transfer of the binary system for photoreforming hydrogen production. The proposed method could provide some inspiration to a more energy-efficient heterogeneous catalytic hydrogen production process.
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Affiliation(s)
- Zhi Yang
- Guangdong Provincial Key Laboratory on Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou, China
| | - Weilin Zhong
- Guangdong Provincial Key Laboratory on Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou, China
| | - Ying Chen
- Guangdong Provincial Key Laboratory on Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou, China
| | - Chao Wang
- Guangdong Provincial Key Laboratory on Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou, China
| | - Songping Mo
- Guangdong Provincial Key Laboratory on Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou, China
| | - Jingtao Zhang
- Guangdong Provincial Key Laboratory on Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou, China
| | - Riyang Shu
- Guangdong Provincial Key Laboratory on Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou, China
| | - Qingbin Song
- Macau Environmental Research Institute, Macau University of Science and Technology, Macao, China
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17
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Dobbs HA, Degen GD, Berkson ZJ, Kristiansen K, Schrader AM, Oey T, Sant G, Chmelka BF, Israelachvili JN. Electrochemically Enhanced Dissolution of Silica and Alumina in Alkaline Environments. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:15651-15660. [PMID: 31454249 DOI: 10.1021/acs.langmuir.9b02043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Dissolution of mineral surfaces at asymmetric solid-liquid-solid interfaces in aqueous solutions occurs in technologically relevant processes, such as chemical/mechanical polishing (CMP) for semiconductor fabrication, formation and corrosion of structural materials, and crystallization of materials relevant to heterogeneous catalysis or drug delivery. In some such processes, materials at confined interfaces exhibit dissolution rates that are orders of magnitude larger than dissolution rates of isolated surfaces. Here, the dissolution of silica and alumina in close proximity to a charged gold surface or mica in alkaline solutions of pH 10-11 is shown to depend on the difference in electrostatic potentials of the surfaces, as determined from measurements conducted using a custom-built electrochemical pressure cell and a surface forces apparatus (SFA). The enhanced dissolution is proposed to result from overlap of the electrostatic double layers between the dissimilar charged surfaces at small intersurface separation distances (<1 Debye length). A semiquantitative model shows that overlap of the electric double layers can change the magnitude and direction of the electric field at the surface with the less negative potential, which results in an increase in the rate of dissolution of that surface. When the surface electrochemical properties were changed, the dissolution rates of silica and alumina were increased by up to 2 orders of magnitude over the dissolution rates of isolated compositionally similar surfaces under otherwise identical conditions. The results provide new insights on dissolution processes that occur at solid-liquid-solid interfaces and yield design criteria for controlling dissolution through electrochemical modification, with relevance to diverse technologies.
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18
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Sabeela NI, Almutairi TM, Al-Lohedan HA, Ezzat AO, Atta AM. Reactive Mesoporous pH-Sensitive Amino-Functionalized Silica Nanoparticles for Efficient Removal of Coomassie Blue Dye. NANOMATERIALS 2019; 9:nano9121721. [PMID: 31810331 PMCID: PMC6955940 DOI: 10.3390/nano9121721] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 11/21/2019] [Accepted: 11/28/2019] [Indexed: 01/25/2023]
Abstract
In this work, new smart mesoporous amine-functionalized silica nanoparticles were prepared from hydrolyzing microgels based on N-isopropyl acrylamide-co-vinyltrimethoxysilane microgels with tetraethoxysilicate and 3-aminopropyltriethoxysilane by sol-gel method. The thermal stability and Fourier transform infrared were used to determine the amine contents of the silica nanoparticles. The pH sensitivity of the synthesized silica nanoparticles in their aqueous solutions was evaluated by using dynamic light scattering (DLS) and zeta potential measurements. The porosity of the amine-functionalized silica nanoparticles was evaluated from a transmittance electron microscope and Brunauer-Emmett-Teller (BET) plot. The results have positively recommended the pH-sensitive amine-functionalized silica nanoparticles as one of the effective nano-adsorbent to remove 313 mg·g−1 of CB-R250 water pollutant.
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Affiliation(s)
- Nourah I. Sabeela
- Surfactants Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (N.I.S.); (A.O.E.)
| | - Tahani M. Almutairi
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Hamad A. Al-Lohedan
- Surfactants Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (N.I.S.); (A.O.E.)
| | - Abdelrahman O. Ezzat
- Surfactants Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (N.I.S.); (A.O.E.)
| | - Ayman M. Atta
- Surfactants Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (N.I.S.); (A.O.E.)
- Correspondence:
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19
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Dong K, Lei Q, Guo R, Wu X, Zhang Y, Cui N, Shi JY, Lu T. Regulating intracellular ROS signal by a dual pH/reducing-responsive nanogels system promotes tumor cell apoptosis. Int J Nanomedicine 2019; 14:5713-5728. [PMID: 31413571 PMCID: PMC6662175 DOI: 10.2147/ijn.s208089] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 07/01/2019] [Indexed: 12/21/2022] Open
Abstract
Purpose: The levels of reactive oxygen species (ROS) in tumor cells are much higher than that in normal cells, and rise rapidly under the influence of exogenous or endogenous inducing factors, eventually leading to the apoptosis of tumor cells. Therefore, this study prepared a dual pH/reducing-responsive poly (N-isopropylacrylamide-co-Cinnamaldehyde-co-D-α-tocopheryl polyethylene glycol 1000 succinate, PssNCT) nanogels, which employed two exogenous ROS inducers, cinnamaldehyde (CA) and D-α-tocopheryl polyethylene glycol 1000 succinate (TPGS), to selectively induce apoptosis by regulating ROS levels in tumor cells. Methods: The PssNCT nanogels were prepared by the free radical precipitation polymerization under the crosslink between pH-sensitive hydrazone and reducing-sensitive disulfide bonds, followed by the physicochemical and morphological characteristics investigations. Plasma stability, dual pH/reducing responsive degradation and in vitro release were also assessed. In cell experiments, cytotoxicity in different cells were first detected. The intracellular ROS levels and mitochondrial functions of tumor cells were then evaluated. Moreover, the apoptosis and western-blot assays were employed to verify the association between ROS levels elevation and apoptosis in tumor cells. Results: The nanogels exhibited a round-like hollow structure with the diameter smaller than 200nm. The nanogels were stable in plasma, while showed rapid degradation in acidic and reducing environments, thus achieving significant release of CA and TPGS in these media. Furthermore, the sufficient amplification of ROS signals was induced by the synergistically function of CA and TPGS on mitochondria, which resulted in the opening of the mitochondrial apoptotic pathway and enhanced cytotoxicity on MCF-7 cells. However, nanogels barely affected L929 cells owing to their lower intracellular ROS basal levels. Conclusion: The specific ROS regulation method achieved by these nanogels could be explored to selectively kill tumor cells according to the difference of ROS signals in different kinds of cells.
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Affiliation(s)
- Kai Dong
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, People’s Republic of China
| | - Qiuya Lei
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, People’s Republic of China
| | - Runhao Guo
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, People’s Republic of China
| | - Xianglong Wu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, People’s Republic of China
| | - Yanni Zhang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, People’s Republic of China
| | - Ning Cui
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, People’s Republic of China
| | - Jian-Yu Shi
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, People’s Republic of China
| | - Tingli Lu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, People’s Republic of China
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20
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Phan HT, Haes AJ. What Does Nanoparticle Stability Mean? THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2019; 123:16495-16507. [PMID: 31844485 PMCID: PMC6913534 DOI: 10.1021/acs.jpcc.9b00913] [Citation(s) in RCA: 147] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The term "nanoparticle stability" is widely used to describe the preservation of a particular nanostructure property ranging from aggregation, composition, crystallinity, shape, size, and surface chemistry. As a result, this catch-all term has various meanings, which depend on the specific nanoparticle property of interest and/or application. In this feature article, we provide an answer to the question, "What does nanoparticle stability mean?". Broadly speaking, the definition of nanoparticle stability depends on the targeted size dependent property that is exploited and can only exist for a finite period of time given all nanostructures are inherently thermodynamically and energetically unfavorable relative to bulk states. To answer this question specifically, however, the relationship between nanoparticle stability and the physical/chemical properties of metal/metal oxide nanoparticles are discussed. Specific definitions are explored in terms of aggregation state, core composition, shape, size, and surface chemistry. Next, mechanisms of promoting nanoparticle stability are defined and related to these same nanoparticle properties. Metrics involving both kinetics and thermodynamics are considered. Methods that provide quantitative metrics for measuring and modeling nanoparticle stability in terms of core composition, shape, size, and surface chemistry are outlined. The stability of solution-phase nanoparticles are also impacted by aggregation state. Thus, collision and DLVO theories are discussed. Finally, challenges and opportunities in understanding what nanoparticle stability means are addressed to facilitate further studies with this important class of materials.
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21
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Arami H, Patel CB, Madsen SJ, Dickinson PJ, Davis RM, Zeng Y, Sturges BK, Woolard KD, Habte FG, Akin D, Sinclair R, Gambhir SS. Nanomedicine for Spontaneous Brain Tumors: A Companion Clinical Trial. ACS NANO 2019; 13:2858-2869. [PMID: 30714717 PMCID: PMC6584029 DOI: 10.1021/acsnano.8b04406] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Nanoparticles' enhanced permeation and retention (EPR) variations due to tumor heterogeneity in naturally occurring brain tumors are commonly neglected in preclinical nanomedicine studies. Recent pathological studies have shown striking similarities between brain tumors in humans and dogs, indicating that canine brain tumors may be a valuable model to evaluate nanoparticles' EPR in this context. We recruited canine clinical cases with spontaneous brain tumors to investigate nanoparticles' EPR in different brain tumor pathologies using surface-enhanced Raman spectroscopy (SERS). We used gold nanoparticles due to their surface plasmon effect that enables their sensitive and microscopic resolution detection using the SERS technique. Raman microscopy of the resected tumors showed heterogeneous EPR of nanoparticles into oligodendrogliomas and meningiomas of different grades, without any detectable traces in necrotic parts of the tumors or normal brain. Raman observations were confirmed by scanning electron microscopy (SEM) and X-ray elemental analyses, which enabled localization of individual nanoparticles embedded in tumor tissues. Our results demonstrate nanoparticles' EPR and its variations in clinically relevant, spontaneous brain tumors. Such heterogeneities should be considered alongside routine preoperative imaging and histopathological analyses in order to accelerate clinical management of brain tumors using nanomedicine approaches.
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Affiliation(s)
- Hamed Arami
- Department of Radiology, Molecular Imaging Program at Stanford (MIPS), Stanford University School of Medicine, Stanford, California 94305, United States
| | - Chirag B. Patel
- Department of Radiology, Molecular Imaging Program at Stanford (MIPS), Stanford University School of Medicine, Stanford, California 94305, United States
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California 94304, United States
| | - Steven J. Madsen
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
| | - Peter J. Dickinson
- Department of Surgical and Radiological Sciences, University of California at Davis, Davis, California 95616, United States
| | - Ryan M. Davis
- Department of Radiology, Molecular Imaging Program at Stanford (MIPS), Stanford University School of Medicine, Stanford, California 94305, United States
| | - Yitian Zeng
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
| | - Beverly K. Sturges
- Department of Surgical and Radiological Sciences, University of California at Davis, Davis, California 95616, United States
| | - Kevin D. Woolard
- Department of Pathology, Microbiology and Immunology, University of California, Davis, California 95616, United States
| | - Frezghi G. Habte
- Department of Radiology, Molecular Imaging Program at Stanford (MIPS), Stanford University School of Medicine, Stanford, California 94305, United States
| | - Demir Akin
- Department of Radiology, Molecular Imaging Program at Stanford (MIPS), Stanford University School of Medicine, Stanford, California 94305, United States
| | - Robert Sinclair
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
| | - Sanjiv S. Gambhir
- Department of Radiology, Molecular Imaging Program at Stanford (MIPS), Stanford University School of Medicine, Stanford, California 94305, United States
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
- Department of Bioengineering, Stanford University, Stanford, California 94305, United States
- Stanford Neuroscience Institute, Stanford University School of Medicine, Stanford, California 94305, United States
- Corresponding Author (Sanjiv S. Gambhir).
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22
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Sachar HS, Sivasankar VS, Das S. Electrostatics and Interactions of an Ionizable Silica Nanoparticle Approaching a Plasma Membrane. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:4171-4181. [PMID: 30798603 DOI: 10.1021/acs.langmuir.9b00036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The surface charge of the plasma membrane (PM) and the large salt content of the extracellular space ensure a significant role of the electrostatic effect dictating the interaction between the PM and an approaching nanoparticle (NP). In this article, we theoretically study the case of an ionizable silica NP approaching the PM. We witness that the surface charge of the silica NP, dictated by the surface ionization of the silica in the electrostatic environment created by the PM surface charge and the extracellular ion concentration, decreases as it approaches the PM. In other words, a silica NP is more negative away from the PM than in close proximity to the PM. Accordingly, we witness a significantly lower repulsion between the PM and NP favoring the approach and the interactions of the silica NP with the PM. Additionally, the presence of the silica NP in the vicinity of the PM induces a large nonisopotentiality, even across a fully permeable PM. We anticipate that these findings will be critically important in the better design of the widely used silica NPs for targeted drug and gene deliveries.
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Affiliation(s)
- Harnoor Singh Sachar
- Department of Mechanical Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Vishal Sankar Sivasankar
- Department of Mechanical Engineering , University of Maryland , College Park , Maryland 20742 , United States
| | - Siddhartha Das
- Department of Mechanical Engineering , University of Maryland , College Park , Maryland 20742 , United States
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23
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Tummino ML, Testa ML, Malandrino M, Gamberini R, Bianco Prevot A, Magnacca G, Laurenti E. Green Waste-Derived Substances Immobilized on SBA-15 Silica: Surface Properties, Adsorbing and Photosensitizing Activities towards Organic and Inorganic Substrates. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E162. [PMID: 30699919 PMCID: PMC6409592 DOI: 10.3390/nano9020162] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 01/24/2019] [Accepted: 01/25/2019] [Indexed: 11/16/2022]
Abstract
Urban wastes are a potential source of environment contamination, especially when they are not properly disposed. Nowadays, researchers are finding innovative solutions for recycling and reusing wastes in order to favour a sustainable development from the viewpoint of circular economy. In this context, the lignin-like fraction of biomass derived from Green Compost is a cost-effective source of soluble Bio-Based Substances (BBS-GC), namely complex macromolecules/supramolecular aggregates characterized by adsorbing and photosensitizing properties. In this work BBS-GC were immobilized on a silica support (SBA-15) and the chemico-physical properties of the resulting hybrid material (BBS-SBA) were analysed by zeta-potential measurements, nitrogen adsorption at 77K and micro-calorimetric techniques. Successively, the BBS-SBA photosensitizing and adsorption abilities were tested. Adsorption in the dark of Rhodamine B and Orange II on BBS-SBA and their degradation upon irradiation under simulated solar light were shown, together with the formation of hydroxyl radicals detected by Electron Paramagnetic Resonance spectroscopy. Furthermore, the adsorption of six inorganic ions (Al, Ni, Mn, As, Hg, Cr) on BBS-SBA was studied in pure water at two different pH values and in a landfill leachate, showing the good potential of this kind of materials in the removal of wastewater contaminants.
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Affiliation(s)
- Maria Laura Tummino
- Dipartimento di Chimica, Università di Torino, via P. Giuria 7, I-10125 Torino, Italy.
| | - Maria Luisa Testa
- Istituto per lo Studio dei Materiali Nanostrutturati, Consiglio Nazionale delle Ricerche, via U. La Malfa 153, I-90146 Palermo, Italy.
| | - Mery Malandrino
- Dipartimento di Chimica, Università di Torino, via P. Giuria 7, I-10125 Torino, Italy.
| | - Roberta Gamberini
- Acea Pinerolese Industriale S.p.A., Via Vigone 42, I-10064 Pinerolo (TO), Italy.
| | | | - Giuliana Magnacca
- Dipartimento di Chimica, Università di Torino, via P. Giuria 7, I-10125 Torino, Italy.
- NIS and INSTM Reference Centre, Via P. Giuria 7, I-10125 Torino, Italy.
| | - Enzo Laurenti
- Dipartimento di Chimica, Università di Torino, via P. Giuria 7, I-10125 Torino, Italy.
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24
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Dong K, Lei Q, Qi H, Zhang Y, Cui N, Wu X, Xie L, Yan X, Lu T. Amplification of Oxidative Stress in MCF-7 Cells by a Novel pH-Responsive Amphiphilic Micellar System Enhances Anticancer Therapy. Mol Pharm 2019; 16:689-700. [DOI: 10.1021/acs.molpharmaceut.8b00973] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Kai Dong
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, China
| | - Qiuya Lei
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, China
| | - Hongfei Qi
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, China
| | - Yanni Zhang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, China
| | - Ning Cui
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, China
| | - Xianglong Wu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, China
| | - Li Xie
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, China
| | - Xiaocheng Yan
- School of Computer Science, Northwestern Polytechnical University, Xi’an, Shaanxi, China
| | - Tingli Lu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, China
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25
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Domhoff A, Balwani A, Martin TB, Davis EM. Leveraging Nanoparticle Dispersion State To Tune Vanadium Ion Selectivity of Nanophase-Segregated Ionomer Nanocomposites for Redox Flow Batteries. ACS APPLIED ENERGY MATERIALS 2019; 2:https://doi.org/10.1021/acsaem.9b01443. [PMID: 33073181 PMCID: PMC7558369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Ionomer nanocomposites provide a promising solution to address ion crossover issues inherent to traditional ion-containing membranes used in batteries for grid-scale energy storage (e.g., vanadium redox flow batteries). Herein, we investigate the impact of nanoparticle surface chemistry on nanoparticle dispersion, membrane morphology, and vanadium ion permeability in a series of Nafion nanocomposites. Specifically, silica nanoparticles (SiNPs) were functionalized with various chemical moieties, seven in total, that electrostatically interact, either attractively or repulsively, with the sulfonic acid groups that coalesce to form the ionic network within Nafion. As seen from electron microscopy analysis of the nanocomposites, SiNPs with sulfonic acid end-functionality were, on average, well dispersed within the ionomer membrane, though increased vanadium ion permeability, as compared to pristine (or unmodified) Nafion, was observed and attributed to changes in the Donnan potential of the system. In contrast, SiNPs with amine end-functionality were, on average, observed to form large aggregates within the ionomer membrane. Surprisingly, nanocomposites containing a higher degree of nanoparticle aggregation demonstrated the lowest vanadium ion permeability. Fractal analysis of the low-Q small-angle neutron scattering data suggests that the interface between the ionomer and the SiNP surface transitions from rough to smooth when the nanoparticle surface is changed from sulfonic acid-functionalized to amine-functionalized.
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Affiliation(s)
- Allison Domhoff
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, South Carolina 29634, United States
| | - Apoorv Balwani
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, South Carolina 29634, United States
| | - Tyler B. Martin
- National Institute of Standards and Technology (NIST) Center for Neutron Research (NCNR), Gaithersburg, Maryland 20899, United States
| | - Eric M. Davis
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, South Carolina 29634, United States
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26
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Jansto A, Davis EM. Role of Surface Chemistry on Nanoparticle Dispersion and Vanadium Ion Crossover in Nafion Nanocomposite Membranes. ACS APPLIED MATERIALS & INTERFACES 2018; 10:36385-36397. [PMID: 30256611 DOI: 10.1021/acsami.8b11297] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
While the introduction of nanoparticles into Nafion membranes has proven to be a viable method to tune the ion selectivity in energy storage technologies such as the vanadium redox flow battery, there still remains a limited understanding of the fundamental mechanism by which the nanoparticles selectively restrict ion crossover. Herein, the surface chemistry and loading of SiO2 nanoparticles (SiNPs) were systematically varied to elucidate the relationship between nanoparticle dispersion (or dispersion state) and vanadium ion permeability in Nafion nanocomposite membranes. Specifically, nanoparticle surface functionalization was altered to achieve both attractive (amine-functionalized) and repulsive (unfunctionalized and sulfonic acid-functionalized) electrostatic interactions between the SiNPs and the ionic groups of Nafion. At a nanoparticle loading of 5 wt %, membranes containing unfunctionalized and amine-functionalized SiNPs demonstrated ∼25% reduction in vanadium ion permeability as compared to unmodified Nafion. Drastically different dispersion states were observed in the electron microscopy images of each nanocomposite membrane, where most notably, aggregates on the order of 500 nm were observed for membranes containing amine-functionalized SiNPs (at all nanoparticle loadings). Results from this work indicate that both dispersion state and surface chemistry of the SiNPs play a critical role in governing the vanadium ion transport in these ionomer nanocomposite membranes.
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Affiliation(s)
- Allison Jansto
- Department of Chemical and Biological Engineering , Clemson University , Clemson , South Carolina 29634 , United States
| | - Eric M Davis
- Department of Chemical and Biological Engineering , Clemson University , Clemson , South Carolina 29634 , United States
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27
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Zimmermann M, John D, Grigoriev D, Puretskiy N, Böker A. From 2D to 3D patches on multifunctional particles: how microcontact printing creates a new dimension of functionality. SOFT MATTER 2018; 14:2301-2309. [PMID: 29504010 PMCID: PMC5870046 DOI: 10.1039/c8sm00163d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 02/14/2018] [Indexed: 05/13/2023]
Abstract
A straightforward approach for the precise multifunctional surface modification of particles with three-dimensional patches using microcontact printing is presented. By comparison to previous works it was possible to not only control the diameter, but also to finely tune the thickness of the deposited layer, opening up the way for three-dimensional structures and orthogonal multifunctionality. The use of PEI as polymeric ink, PDMS stamps for microcontact printing on silica particles and the influence of different solvents during particle release on the creation of functional particles with three-dimensional patches are described. Finally, by introducing fluorescent properties by incorporation of quantum dots into patches and by particle self-assembly via avidin-biotin coupling, the versatility of this novel modification method is demonstrated.
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Affiliation(s)
- Marc Zimmermann
- Fraunhofer Institute for Applied Polymer Research IAP, D-14476 Potsdam-Golm, Germany. and Chair of Polymer Materials and Polymer Technologies, University Potsdam, D-14476 Potsdam-Golm, Germany
| | - Daniela John
- Fraunhofer Institute for Applied Polymer Research IAP, D-14476 Potsdam-Golm, Germany.
| | - Dmitry Grigoriev
- Fraunhofer Institute for Applied Polymer Research IAP, D-14476 Potsdam-Golm, Germany.
| | - Nikolay Puretskiy
- Fraunhofer Institute for Applied Polymer Research IAP, D-14476 Potsdam-Golm, Germany.
| | - Alexander Böker
- Fraunhofer Institute for Applied Polymer Research IAP, D-14476 Potsdam-Golm, Germany. and Chair of Polymer Materials and Polymer Technologies, University Potsdam, D-14476 Potsdam-Golm, Germany
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28
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Nanosized aptameric cavities imprinted on the surface of magnetic nanoparticles for high-throughput protein recognition. Mikrochim Acta 2018; 185:241. [PMID: 29594596 DOI: 10.1007/s00604-018-2745-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Accepted: 02/20/2018] [Indexed: 10/17/2022]
Abstract
The authors introduce a new kind of surface artificial biomimetic receptor, referred to as aptameric imprinted polymer (AIP), for separation of biological macromolecules. Highly dispersed magnetic nanoparticles (MNPs) were coated with silica and then functionalized with methacrylate groups via silane chemistry. The aptamer was covalently immobilized on the surface of nanoparticles via a "thiol-ene" click reaction. Once the target analyte (bovine serum albumin; BSA) has bound to the aptamer, a polymer is created by 2-dimensional copolymerization of short-length poly(ethylene glycol) and (3-aminopropyl)triethoxysilane. Following removal of BSA from the polymer, the AIP-MNPs presented here can selectively capture BSA with a specific absorbance (κ) as high as 65. When using this AIP, the recovery of BSA from spiked real biological samples is >97%, and the adsorption capacity is as high as 146 mg g-1. In our perception, this method has a wide scope in that it may be applied to the specific extraction of numerous other biomolecules. Graphical abstract Schematic presentation of the AIP (aptamer-imprinted polymer) introduced here. The surface of silica coated magnetic nanoparticles is modified with a polymer that is covalently modified with an aptamer against bovine serum albumin (BSA).
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29
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Lin J, Zhao C, Liu C, Fu S, Han L, Lu X, Yang C. Redox-responsive F127-folate/F127-disulfide bond-d-α-tocopheryl polyethylene glycol 1000 succinate/P123 mixed micelles loaded with paclitaxel for the reversal of multidrug resistance in tumors. Int J Nanomedicine 2018; 13:805-830. [PMID: 29445276 PMCID: PMC5808690 DOI: 10.2147/ijn.s152395] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Introduction The development of nanodrug carriers utilizing tumor microenvironment has become a hotspot in reversing multidrug resistance (MDR). Materials and methods This study synthesized a redox-sensitive copolymer, Pluronic F127-disulfide bond-d-α-tocopheryl polyethylene glycol 1000 succinate (FSST), through the connection of the reduction-sensitive disulfide bond between F127 and d-α-tocopheryl polyethylene glycol 1000 succinate. This polymer could induce the elevation of reactive oxygen species (ROS) levels, ultimately resulting in cytotoxicity. Moreover, the redox-responsive mixed micelles, F127-folate (FA)/FSST/P123 (FFSSTP), based on FSST, Pluronic F127-FA, and Pluronic P123, were prepared to load paclitaxel (PTX). Results The in vitro release study demonstrated that FFSSTP/PTX accelerated the PTX release through the breakage of disulfide bond in reductive environment. In cellular experiment, FFSSTP/PTX induced significant apoptosis in PTX-resistant MCF-7/PTX cells through inhibiting adenosine triphosphate (ATP)-binding cassette proteins from pumping out PTX by interfering with the mitochondrial function and ATP synthesis. Furthermore, FFSSTP/PTX induced apoptosis through elevating the intracellular levels of ROS. Conclusion FFSSTP could become a potential carrier for the treatment of MDR tumors.
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Affiliation(s)
- Jing Lin
- College of Pharmacy, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Chaoyue Zhao
- College of Pharmacy, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Cuijuan Liu
- College of Pharmacy, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Shiyao Fu
- College of Pharmacy, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Luying Han
- College of Pharmacy, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Xinping Lu
- College of Pharmacy, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Chunrong Yang
- College of Pharmacy, Jiamusi University, Jiamusi, Heilongjiang, China
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30
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Woźniak-Budych MJ, Przysiecka Ł, Maciejewska BM, Wieczorek D, Staszak K, Jarek M, Jesionowski T, Jurga S. Facile Synthesis of Sulfobetaine-Stabilized Cu2O Nanoparticles and Their Biomedical Potential. ACS Biomater Sci Eng 2017; 3:3183-3194. [DOI: 10.1021/acsbiomaterials.7b00465] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Marta J. Woźniak-Budych
- NanoBioMedical
Centre, Adam Mickiewicz University in Poznan, Umultowska 85, Poznan 61-712, Poland
| | - Łucja Przysiecka
- NanoBioMedical
Centre, Adam Mickiewicz University in Poznan, Umultowska 85, Poznan 61-712, Poland
| | - Barbara M. Maciejewska
- NanoBioMedical
Centre, Adam Mickiewicz University in Poznan, Umultowska 85, Poznan 61-712, Poland
| | - Daria Wieczorek
- Department
of Technology and Instrumental Analysis, Faculty of Commodity Science, Poznan University of Economics and Business, al. Niepodległości
10, Poznan 61-875, Poland
| | - Katarzyna Staszak
- Institute
of Technology and Chemical Engineering, Poznan University of Technology, ul. Berdychowo 4, Poznan 60-965, Poland
| | - Marcin Jarek
- NanoBioMedical
Centre, Adam Mickiewicz University in Poznan, Umultowska 85, Poznan 61-712, Poland
| | - Teofil Jesionowski
- Institute
of Technology and Chemical Engineering, Poznan University of Technology, ul. Berdychowo 4, Poznan 60-965, Poland
| | - Stefan Jurga
- NanoBioMedical
Centre, Adam Mickiewicz University in Poznan, Umultowska 85, Poznan 61-712, Poland
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31
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Jo MR, Yu J, Kim HJ, Song JH, Kim KM, Oh JM, Choi SJ. Titanium Dioxide Nanoparticle-Biomolecule Interactions Influence Oral Absorption. NANOMATERIALS 2016; 6:nano6120225. [PMID: 28335354 PMCID: PMC5302714 DOI: 10.3390/nano6120225] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 11/14/2016] [Accepted: 11/21/2016] [Indexed: 12/12/2022]
Abstract
Titanium dioxide (TiO2) nanoparticles (NPs) have been widely applied in various industrial fields, such as electronics, packaging, food, and cosmetics. Accordingly, concerns about the potential toxicity of TiO2 NPs have increased. In order to comprehend their in vivo behavior and potential toxicity, we must evaluate the interactions between TiO2 NPs and biomolecules, which can alter the physicochemical properties and the fate of NPs under physiological conditions. In the present study, in vivo solubility, oral absorption, tissue distribution, and excretion kinetics of food grade TiO2 (f-TiO2) NPs were evaluated following a single-dose oral administration to rats and were compared to those of general grade TiO2 (g-TiO2) NPs. The effect of the interactions between the TiO2 NPs and biomolecules, such as glucose and albumin, on oral absorption was also investigated, with the aim of determining the surface interactions between them. The intestinal transport pathway was also assessed using 3-dimensional culture systems. The results demonstrate that slightly higher oral absorption of f-TiO2 NPs compared to g-TiO2 NPs could be related to their intestinal transport mechanism by microfold (M) cells, however, most of the NPs were eliminated through the feces. Moreover, the biokinetics of f-TiO2 NPs was highly dependent on their interaction with biomolecules, and the dispersibility was affected by modified surface chemistry.
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Affiliation(s)
- Mi-Rae Jo
- Division of Applied Food System, Major of Food Science and Technology, Seoul Women's University, Seoul 01797, Korea.
| | - Jin Yu
- Division of Applied Food System, Major of Food Science and Technology, Seoul Women's University, Seoul 01797, Korea.
| | - Hyoung-Jun Kim
- Department of Chemistry and Medical Chemistry, Yonsei University, Wonju, Gangwondo 26493, Korea.
| | - Jae Ho Song
- Department of Chemistry and Medical Chemistry, Yonsei University, Wonju, Gangwondo 26493, Korea.
| | - Kyoung-Min Kim
- Department of Chemistry and Medical Chemistry, Yonsei University, Wonju, Gangwondo 26493, Korea.
- Seoul Institute, National Forensic Service, 139, Jiyang-ro, Yangcheon-gu, Seoul 08036, Korea.
| | - Jae-Min Oh
- Department of Chemistry and Medical Chemistry, Yonsei University, Wonju, Gangwondo 26493, Korea.
| | - Soo-Jin Choi
- Division of Applied Food System, Major of Food Science and Technology, Seoul Women's University, Seoul 01797, Korea.
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32
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Szymusiak M, Donovan AJ, Smith SA, Ransom R, Shen H, Kalkowski J, Morrissey JH, Liu Y. Colloidal Confinement of Polyphosphate on Gold Nanoparticles Robustly Activates the Contact Pathway of Blood Coagulation. Bioconjug Chem 2015; 27:102-9. [DOI: 10.1021/acs.bioconjchem.5b00524] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Stephanie A. Smith
- Department
of Biochemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | | | | | | | - James H. Morrissey
- Department
of Biochemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
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