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Farka D, Ciganek M, Veselý D, Kalina L, Krajčovič J. Epitaxial Guidance of Adamantyl-Substituted Polythiophenes by Self-Assembled Monolayers. ACS OMEGA 2024; 9:38733-38742. [PMID: 39310142 PMCID: PMC11411674 DOI: 10.1021/acsomega.4c04616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 08/20/2024] [Accepted: 08/26/2024] [Indexed: 09/25/2024]
Abstract
The anisotropic nature of charge transport through organic materials requires high control over the self-assembly of the organic materials. This is particularly so for conductive polymers, where transport occurs mainly along the polymers' backbone. Herein, we demonstrate the use of self-assembled monolayers (SAMs) to influence the self-assembly of poly(3-adamantylmethylthiophene). We employ two different SAMs, which interact with either the adamantyl- or the thiophene-functionality, respectively, and acquire distinct topologies as compared to the unmodified Au(111) surface. We compare these results with unmodified glass and mica (muscovite) surfaces, which are typically employed in the field of optoelectronics. We prove the usefulness and applicability of epitaxial effects and adamantyl substituents for organic electronics. This presents a viable way toward improved electronic performance for the field as a whole.
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Affiliation(s)
- Dominik Farka
- Institute
of Organic Chemistry and Biochemistry (IOCB), Czech Academy of Sciences, Flemingovo Náměstí 2, Prague 160 00, Czech Republic
| | - Martin Ciganek
- Faculty
of Chemistry, Brno University of Technology
(BUT), Purkyňova
118, Brno CZ-612 00, Czech Republic
| | - Dominik Veselý
- Faculty
of Chemistry, Brno University of Technology
(BUT), Purkyňova
118, Brno CZ-612 00, Czech Republic
| | - Lukáš Kalina
- Faculty
of Chemistry, Brno University of Technology
(BUT), Purkyňova
118, Brno CZ-612 00, Czech Republic
| | - Jozef Krajčovič
- Faculty
of Chemistry, Brno University of Technology
(BUT), Purkyňova
118, Brno CZ-612 00, Czech Republic
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2
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Sorrentino AL, Poggini L, Serrano G, Cucinotta G, Cortigiani B, Malavolti L, Parenti F, Otero E, Arrio MA, Sainctavit P, Caneschi A, Cornia A, Sessoli R, Mannini M. Assembling Fe 4 single-molecule magnets on a TiO 2 monolayer. NANOSCALE 2024; 16:14378-14386. [PMID: 38993100 DOI: 10.1039/d4nr02234c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
The decoration of technologically relevant surfaces, such as metal oxides, with Single-Molecule Magnets (SMMs) constitutes a persistent challenge for the integration of these molecular systems into novel technologies and, in particular, for the development of spintronic and quantum devices. We used UHV thermal sublimation to deposit tetrairon(III) propeller-shaped SMMs (Fe4) as a single layer on a TiO2 ultrathin film grown on Cu(001). The properties of the molecular deposit were studied using a multi-technique approach based on standard topographic and spectroscopic measurements, which demonstrated that molecules remain largely intact upon deposition. Ultralow temperature X-ray Absorption Spectroscopy (XAS) with linearly and circularly polarized light was further employed to evaluate both the molecular organization and the magnetic properties of the Fe4 monolayer. X-ray Natural Linear Dichroism (XNLD) and X-ray Magnetic Circular Dichroism (XMCD) showed that molecules in a monolayer display a preferential orientation and an open magnetic hysteresis with pronounced quantum tunnelling steps up to 900 mK. However, unexpected extra features in the XAS and XMCD spectra disclosed a minority fraction of altered molecules, suggesting that the TiO2 film may be chemically non-innocent. The observed persistence of SMM behaviour on a metal oxide thin film opens new possibilities for the development of SMM-based hybrid systems.
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Affiliation(s)
- Andrea Luigi Sorrentino
- Department of Industrial Engineering - DIEF - and INSTM Research Unit, University of Florence, Via Santa Marta 3, 50139 Florence, Italy
- Department of Chemistry "U. Schiff" - DICUS - and INSTM Research Unit, University of Florence, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, FI, Italy.
| | - Lorenzo Poggini
- Department of Chemistry "U. Schiff" - DICUS - and INSTM Research Unit, University of Florence, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, FI, Italy.
- Institute for Chemistry of Organo-Metallic Compounds (ICCOM-CNR), Via Madonna del Piano, 50019 Sesto Fiorentino, FI, Italy
| | - Giulia Serrano
- Department of Industrial Engineering - DIEF - and INSTM Research Unit, University of Florence, Via Santa Marta 3, 50139 Florence, Italy
- Department of Chemistry "U. Schiff" - DICUS - and INSTM Research Unit, University of Florence, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, FI, Italy.
| | - Giuseppe Cucinotta
- Department of Chemistry "U. Schiff" - DICUS - and INSTM Research Unit, University of Florence, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, FI, Italy.
| | - Brunetto Cortigiani
- Department of Chemistry "U. Schiff" - DICUS - and INSTM Research Unit, University of Florence, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, FI, Italy.
| | - Luigi Malavolti
- Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569 Stuttgart, Germany
| | - Francesca Parenti
- Department of Chemical and Geological Sciences and INSTM Research Unit, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy
| | - Edwige Otero
- Synchrotron-SOLEIL, L'Orme des Merisiers, 91192 Saint-Aubin, France
| | - Marie-Anne Arrio
- CNRS UMR7590, Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université/MNHN, 4 place Jussieu, 75252 Paris Cedex 5, France
| | - Philippe Sainctavit
- Synchrotron-SOLEIL, L'Orme des Merisiers, 91192 Saint-Aubin, France
- CNRS UMR7590, Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université/MNHN, 4 place Jussieu, 75252 Paris Cedex 5, France
| | - Andrea Caneschi
- Department of Industrial Engineering - DIEF - and INSTM Research Unit, University of Florence, Via Santa Marta 3, 50139 Florence, Italy
| | - Andrea Cornia
- Department of Chemical and Geological Sciences and INSTM Research Unit, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy
| | - Roberta Sessoli
- Department of Chemistry "U. Schiff" - DICUS - and INSTM Research Unit, University of Florence, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, FI, Italy.
- Institute for Chemistry of Organo-Metallic Compounds (ICCOM-CNR), Via Madonna del Piano, 50019 Sesto Fiorentino, FI, Italy
| | - Matteo Mannini
- Department of Chemistry "U. Schiff" - DICUS - and INSTM Research Unit, University of Florence, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, FI, Italy.
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3
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Yu Y, Zhao H, Chen K, Cao S, Lan M. Sandwich-type electrochemical aptasensor for sensitive detection of myoglobin based on Pt@CuCo-oxide nanoparticles as a signal marker. Talanta 2024; 272:125764. [PMID: 38346359 DOI: 10.1016/j.talanta.2024.125764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/30/2024] [Accepted: 02/06/2024] [Indexed: 03/17/2024]
Abstract
When an acute myocardial infarction (AMI) occurs, myoglobin (Mb) is the biomarker whose concentration firstly increases, and the high sensitive detection of Mb is critical for early diagnosis of AMI. Herein, a sandwich-type electrochemical aptasensor for the sensitive detection of Mb was constructed by using Pt@Cu1.33OCo0.83O as the signal marker. On one hand, nano-flower-like Cu1.33OCo0.83O was synthesized by hydrothermal method and Pt nanoparticles (Pt NPs) were loaded on its surface. Pt@Cu1.33OCo0.83O could immobilize aptamer 2 (Apt2) successfully by the Pt-S bond. And because of the synergistic effect between Pt and bimetallic oxide, Pt@Cu1.33OCo0.83O had an excellent catalytic effect on the signal source of hydrogen peroxide (H2O2) to amplify the current signal, which enhance the sensitivity of the aptasensor. On the other hand, the screen-printed gold electrode (SPGE) was used as the sensing base, which had good conductivity and ensured the immobilization of aptamer 1 (Apt1). The quantitative detection of Mb was achieved by specific recognition between Mb and Apt1, Apt2. As a result, the constructed electrochemical aptasensor had a good linear range (1-1500 ng/mL) with a low detection limit (LOD) of 0.128 ng/mL (S/N = 3), and a high sensitivity of 29.47 μA dec-1. The aptasensor also realized the detection of Mb in human serum samples with good accuracy, and the results were consistent with the hospital's biochemical indicators, which demonstrated the potential application of the prepared sensor in the clinical detection of Mb.
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Affiliation(s)
- Yueying Yu
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Hongli Zhao
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China.
| | - Kaicha Chen
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Shida Cao
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Minbo Lan
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China; Research Center of Analysis and Test, East China University of Science and Technology, Shanghai, 200237, PR China.
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4
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Sultan M, Mohamed OA, El-Masry HM, Taha G. Fabrication and evaluation of antimicrobial cellulose/Arabic gum hydrogels as potential drug delivery vehicle. Int J Biol Macromol 2023:125083. [PMID: 37247718 DOI: 10.1016/j.ijbiomac.2023.125083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 05/31/2023]
Abstract
This article aims to assess the highly potent antimicrobial hydrogels composed of cellulose and Arabic gum containing sulfadiazine drug (sulfadiazine-loaded Cel/AG) as drug-targeting carriers. ATR-IR, SEM/ EDS, XRD, and XPS methods were used to investigate the hydrogel. The highest water absorption % was 489.93 ± 4.5 at pH 7.4. Pseudo-second order and Fickian diffusion govern the swelling behavior. The maximal sulfadiazine loading percent was 82.291 ± 74. The in-vitro drug release exhibited significant responses in physiologically simulated pH values. The maximum cumulative release percent was 66.42 ± 0.6 % at pH 7.4. The drug release is predicted by the first order and Korsmeyer-Peppas models. The first diffusion coefficient was (Di = 9.207 ± 47 × 10-3 cm2/h) and the late one was (DL = 5.64 ± 9.0 × 10-2 cm2/h) at pH 7.4. That hydrogel is well-thought-out a potential drug delivery vehicle. The thermal stability of the Cel/AG hydrogel drug carrier has been enhanced by the incorporation of sulfadiazine which is evidenced by increasing the total activation approximately two-fold. The total activation energy of Cel/AG and sulfadiazine-loaded Cel/AG hydrogels were -0.07362 and -0.2092 J/mol. The sulfadiazine medication's inhibitory effect was markedly enhanced when it was incorporated into the Cel/AG hydrogel films.
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Affiliation(s)
- Maha Sultan
- Packaging Materials Department, National Research Centre, 33 El Bohouth St. (former El Tahrir St.), Dokki, Giza, P.O. 12622, Egypt
| | - Ola A Mohamed
- Chemistry of Tanning Materials and Leather Technology Department, National Research Centre, 33 El Bohouth St. (former El Tahrir St.), Dokki, Giza, P.O. 12622, Egypt
| | - Hossam Mohammed El-Masry
- Chemistry of Natural and Microbial Products, National Research Centre, 33 El Bohouth St. (former El Tahrir St.), Dokki, Giza, P.O. 12622, Egypt
| | - Ghada Taha
- Pre-treatment and Finishing of Cellulose-based Textiles, National Research Centre, 33 El Bohouth St. (former El Tahrir St.), Dokki, Giza, P.O. 12622, Egypt.
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5
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Zhong X, Yan J, Ding X, Su C, Xu Y, Yang M. Recent Advances in Bioorthogonal Click Chemistry for Enhanced PET and SPECT Radiochemistry. Bioconjug Chem 2023; 34:457-476. [PMID: 36811499 DOI: 10.1021/acs.bioconjchem.2c00583] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Due to their high reaction rate and reliable selectivity, bioorthogonal click reactions have been extensively investigated in numerous research fields, such as nanotechnology, drug delivery, molecular imaging, and targeted therapy. Previous reviews on bioorthogonal click chemistry for radiochemistry mainly focus on 18F-labeling protocols employed to produce radiotracers and radiopharmaceuticals. In fact, besides fluorine-18, other radionuclides such as gallium-68, iodine-125, and technetium-99m are also used in the field of bioorthogonal click chemistry. Herein, to provide a more comprehensive perspective, we provide a summary of recent advances in radiotracers prepared using bioorthogonal click reactions, including small molecules, peptides, proteins, antibodies, and nucleic acids as well as nanoparticles based on these radionuclides. The combination of pretargeting with imaging modalities or nanoparticles, as well as the clinical translations study, are also discussed to illustrate the effects and potential of bioorthogonal click chemistry for radiopharmaceuticals.
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Affiliation(s)
- Xinlin Zhong
- School of Life Sciences and Health Engineering, Jiangnan University, Wuxi 214122, P. R. China
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Junjie Yan
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi 214063, P. R. China
| | - Xiang Ding
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi 214063, P. R. China
| | - Chen Su
- Wuxi Maternal and Child Health Hospital, Wuxi School of Medicine, Jiangnan University, Wuxi 214002, P. R. China
| | - Yuping Xu
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi 214063, P. R. China
| | - Min Yang
- School of Life Sciences and Health Engineering, Jiangnan University, Wuxi 214122, P. R. China
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi 214063, P. R. China
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
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6
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Wan K, Wang G, Bo W, Xue S, Miao Z. A Sandwich Structure of Fulvic Acid and PMIDA-Modified LDHs for the Simultaneous Removal of Cu 2+ and Aniline in Multicomponent Solutions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:2537-2547. [PMID: 36758167 DOI: 10.1021/acs.langmuir.2c02724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The coexistence of organic and inorganic pollutants in industrial wastewater has emerged as a concerning environmental issue worldwide due to the critical levels of biological toxicity of these pollutants. In this context, the present study proposes a sandwich structure of fulvic acid and PMIDA-modified LDHs (FA/PMIDA-LDHs) for the simultaneous removal of Cu2+ and aniline from wastewater. The specific structure was synthesized using a combination of coprecipitation and impregnation methods. Abundant benzene rings and oxygen-containing functional groups greatly increased the number of sites for the adsorption of both Cu2+ and aniline. The maximum adsorption capacity of Cu2+ and aniline in solution with initial pH 5.0 at 25 °C could reach 221.24 and 132.28 mg/g, respectively. Cu2+ could be chelated by the functional groups in the FA/PMIDA-LDHs structure, and a coupled reduction-complexation mechanism was proposed for this process. The uptake of aniline on FA/PMIDA-LDHs was demonstrated to be a result of the combination of coordination forces, hydrophobic effects, π-π interactions, and hydrogen bonds. In a multicomponent solution, FA/PMIDA-LDHs exhibited excellent salt tolerance of up to 1000 mg/L of Na+ or Ca2+. The effects of Fe3+, Ni2+, Cl-, Cr2O72-, SO42-, and H2PO4- on the uptakes of Cu2+ and aniline were also investigated.
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Affiliation(s)
- Keji Wan
- National Engineering Research Center of Coal Preparation and Purification, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Guoqiang Wang
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Wenting Bo
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Shuwen Xue
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Zhenyong Miao
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
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7
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Zhu P, Papadimitriou VA, van Dongen JE, Cordeiro J, Neeleman Y, Santoso A, Chen S, Eijkel JC, Peng H, Segerink LI, Rwei AY. An optical aptasensor for real-time quantification of endotoxin: From ensemble to single-molecule resolution. SCIENCE ADVANCES 2023; 9:eadf5509. [PMID: 36753543 PMCID: PMC9908015 DOI: 10.1126/sciadv.adf5509] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 01/09/2023] [Indexed: 06/18/2023]
Abstract
Endotoxin is a deadly pyrogen, rendering it crucial to monitor with high accuracy and efficiency. However, current endotoxin detection relies on multistep processes that are labor-intensive, time-consuming, and unsustainable. Here, we report an aptamer-based biosensor for the real-time optical detection of endotoxin. The endotoxin sensor exploits the distance-dependent scattering of gold nanoparticles (AuNPs) coupled to a gold nanofilm. This is enabled by the conformational changes of an endotoxin-specific aptamer upon target binding. The sensor can be used in an ensemble mode and single-particle mode under dark-field illumination. In the ensemble mode, the sensor is coupled with a microspectrometer and exhibits high specificity, reliability (i.e., linear concentration to signal profile in logarithmic scale), and reusability for repeated endotoxin measurements. Individual endotoxins can be detected by monitoring the color of single AuNPs via a color camera, achieving single-molecule resolution. This platform can potentially advance endotoxin detection to safeguard medical, food, and pharmaceutical products.
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Affiliation(s)
- Pancheng Zhu
- Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, Netherlands
- State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, 210016 Nanjing, China
| | | | - Jeanne E. van Dongen
- BIOS Lab on a Chip Group, MESA+ Institute for Nanotechnology, Technical Medical Centre, Max Planck Institute for Complex Fluid Dynamics, University of Twente, P.O. Box 217, 7500 AE Enschede, Netherlands
| | - Julia Cordeiro
- Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, Netherlands
| | - Yannick Neeleman
- Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, Netherlands
| | - Albert Santoso
- Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, Netherlands
| | - Shuyi Chen
- Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, Netherlands
- Institute of Organic and Polymeric Materials, National Taipei University of Technology, 10608 Taipei, Taiwan
- Research and Development Center for Smart Textile Technology, National Taipei University of Technology, 10608 Taipei, Taiwan
| | - Jan C. T. Eijkel
- BIOS Lab on a Chip Group, MESA+ Institute for Nanotechnology, Technical Medical Centre, Max Planck Institute for Complex Fluid Dynamics, University of Twente, P.O. Box 217, 7500 AE Enschede, Netherlands
| | - Hanmin Peng
- State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, 210016 Nanjing, China
| | - Loes I. Segerink
- BIOS Lab on a Chip Group, MESA+ Institute for Nanotechnology, Technical Medical Centre, Max Planck Institute for Complex Fluid Dynamics, University of Twente, P.O. Box 217, 7500 AE Enschede, Netherlands
| | - Alina Y. Rwei
- Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, Netherlands
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8
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Sharma KS, Dubey AK, Kumar C, Phadnis PP, Sudarsan V, Vatsa RK. Mesoporous Silica-Coated Upconversion Nanoparticles Assisted Photodynamic Therapy Using 5-Aminolevulinic Acid: Mechanistic and In Vivo Studies. ACS APPLIED BIO MATERIALS 2022; 5:583-597. [PMID: 35025194 DOI: 10.1021/acsabm.1c01074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Exclusively red-emitting upconversion nanoparticles (UCNPs) with the composition NaErF4:0.5%Tm as a core and NaYF4 as a shell were synthesized for performing photodynamic therapy (PDT). A possible mechanism was proposed for core-shell UCNPs formation. For loading a maximum amount of 5-aminolevulinic acid (5-ALA), mesoporous silica coating was performed on UCNPs. Studies under dark conditions confirmed the biocompatibility of 5-ALA-loaded UCNPs formulation (UCNPs-5-ALA) with MCF-7 cells. Meanwhile, studies under light-exposed conditions exhibited effective cytotoxicity against MCF-7 cells. Studies employing D2O-based cell cultured media and addition of DABCO in cell culture established that the cell death was due to oxidation of cellular components by reactive oxygen species (ROS) triggering the apoptosis. The formation of ROS was confirmed by DCF(H)DA-based ROS analysis via fluorescence microscopy to demonstrate the ROS production, which mediates the programmed cell death. Additionally, we have validated the apoptosis in MCF-7 cells with flow cytometry analyses. This was further confirmed by an electrophoretic mobility shift assay on nuclear extract and measurement of mitochondrial membrane potential. In the case of animal model studies, the formulation UCNPs-5-ALA without irradiation (980 nm) did not possess any in vivo cytotoxicity on tumor-induced SCID mice and there was a minimum migration of UCNPs-5-ALA to the vital organs but maximum retention at the tumor site only. Meanwhile, only the mice treated with UCNPs-5-ALA and irradiated on the tumor region with 980 nm laser (500 mW) for 20 min possessed a tumor with a size reduced to about 75% as compared with the corresponding control groups. To the best of our knowledge, this type of study was conducted for the first time employing exclusively red-emitting phosphors for effective PDT.
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Affiliation(s)
- K Shitaljit Sharma
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Akhil K Dubey
- Bio-Organic Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Chandan Kumar
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Prasad P Phadnis
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India.,Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India
| | | | - Rajesh K Vatsa
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India.,Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India
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9
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Deng S, Gigliobianco MR, Mijit E, Minicucci M, Cortese M, Campisi B, Voinovich D, Battistelli M, Salucci S, Gobbi P, Lupidi G, Zambito G, Mezzanotte L, Censi R, Di Martino P. Dually Cross-Linked Core-Shell Structure Nanohydrogel with Redox-Responsive Degradability for Intracellular Delivery. Pharmaceutics 2021; 13:pharmaceutics13122048. [PMID: 34959330 PMCID: PMC8708258 DOI: 10.3390/pharmaceutics13122048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/20/2021] [Accepted: 11/25/2021] [Indexed: 11/16/2022] Open
Abstract
A redox-responsive nanocarrier is a promising strategy for the intracellular drug release because it protects the payload, prevents its undesirable leakage during extracellular transport, and favors site-specific drug delivery. In this study, we developed a novel redox responsive core-shell structure nanohydrogel prepared by a water in oil nanoemulsion method using two biocompatible synthetic polymers: vinyl sulfonated poly(N-(2-hydroxypropyl) methacrylamide mono/dilactate)-polyethylene glycol-poly(N-(2-hydroxypropyl) methacrylamide mono/dilactate) triblock copolymer, and thiolated hyaluronic acid. The influence on the nanohydrogel particle size and distribution of formulation parameters was investigated by a three-level full factorial design to optimize the preparation conditions. The surface and core-shell morphology of the nanohydrogel were observed by scanning electron microscope, transmission electron microscopy, and further confirmed by Fourier transform infrared spectroscopy and Raman spectroscopy from the standpoint of chemical composition. The redox-responsive biodegradability of the nanohydrogel in reducing environments was determined using glutathione as reducing agent. A nanohydrogel with particle size around 250 nm and polydispersity index around 0.1 is characterized by a thermosensitive shell which jellifies at body temperature and crosslinks at the interface of a redox-responsive hyaluronic acid core via the Michael addition reaction. The nanohydrogel showed good encapsulation efficiency for model macromolecules of different molecular weight (93% for cytochrome C, 47% for horseradish peroxidase, and 90% for bovine serum albumin), capacity to retain the peroxidase-like enzymatic activity (around 90%) of cytochrome C and horseradish peroxidase, and specific redox-responsive release behavior. Additionally, the nanohydrogel exhibited excellent cytocompatibility and internalization efficiency into macrophages. Therefore, the developed core-shell structure nanohydrogel can be considered a promising tool for the potential intracellular delivery of different pharmaceutical applications, including for cancer therapy.
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Affiliation(s)
- Siyuan Deng
- School of Pharmacy, University of Camerino, Via S. Agostino 1, 62032 Camerino, Italy; (S.D.); (M.C.); (G.L.)
| | | | - Emin Mijit
- Physics Division, School of Science and Technology, University of Camerino, Via Madonna delle Carceri 9, 62032 Camerino, Italy; (E.M.); (M.M.)
| | - Marco Minicucci
- Physics Division, School of Science and Technology, University of Camerino, Via Madonna delle Carceri 9, 62032 Camerino, Italy; (E.M.); (M.M.)
| | - Manuela Cortese
- School of Pharmacy, University of Camerino, Via S. Agostino 1, 62032 Camerino, Italy; (S.D.); (M.C.); (G.L.)
| | - Barbara Campisi
- Department of Economic, Business, Mathematic and Statistical Sciences, University of Trieste, 34127 Trieste, Italy;
| | - Dario Voinovich
- Department of Chemical and Pharmaceutical Science, University of Trieste, P. le Europa 1, 34127 Trieste, Italy;
| | - Michela Battistelli
- Institute of Morphological Sciences, University of Urbino, Via Ca’ le Suore 2, 61029 Urbino, Italy; (M.B.); (P.G.)
| | - Sara Salucci
- Cellular Signalling Laboratory, Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, 40126 Bologna, Italy;
| | - Pietro Gobbi
- Institute of Morphological Sciences, University of Urbino, Via Ca’ le Suore 2, 61029 Urbino, Italy; (M.B.); (P.G.)
| | - Giulio Lupidi
- School of Pharmacy, University of Camerino, Via S. Agostino 1, 62032 Camerino, Italy; (S.D.); (M.C.); (G.L.)
| | - Giorgia Zambito
- Department of Radiology and Nuclear Medicine, Erasmus Medical Center, 3015 GD Rotterdam, The Netherlands; (G.Z.); (L.M.)
| | - Laura Mezzanotte
- Department of Radiology and Nuclear Medicine, Erasmus Medical Center, 3015 GD Rotterdam, The Netherlands; (G.Z.); (L.M.)
| | - Roberta Censi
- School of Pharmacy, University of Camerino, Via S. Agostino 1, 62032 Camerino, Italy; (S.D.); (M.C.); (G.L.)
- Correspondence: ; Tel.: +39-0737-40-2231
| | - Piera Di Martino
- Dipartimento di Farmacia, Università “G. D’Annunzio” Chieti e Pescara, Via dei Vestini, 1, 66100 Chieti, Italy;
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10
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Murtaza A, Uroos M, Sultan M, Muazzam R, Naz S. Enhancing catalytic potential of gold nanoparticles by linear and cross-linked polyurethane blending. RSC Adv 2021; 11:26635-26643. [PMID: 35480030 PMCID: PMC9037337 DOI: 10.1039/d1ra04662d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 07/23/2021] [Indexed: 11/21/2022] Open
Abstract
This work describes the synthesis of gold nanoparticles (AuNPs) and their subsequent stabilization using a water-borne polyurethane matrix of micro-particles (Au/PU) by a heating method. Composites were prepared both from linear and cross-linked polyurethane (LPU and CPU). Catalytic activities of synthesized composites exhibiting 226.4 nm size were evaluated for reduction of Congo red dye. More than 90% Congo red degradation was achieved in just 6 minutes with Au/LPU. Under similar conditions, 30% of dye was degraded with Au/CPU composite in 5 minutes. The effects of different variables such as concentration of dye, catalyst dose and concentration of reagents have been optimized. The degradation process followed first order kinetics. The most efficient composite (Au/LPU) was characterized using UV/Vis, FTIR, SEM, XRD and DLS techniques. The excellent catalytic activity can be attributed to the polyurethane matrix making the dye available to catalytic sites (AuNPs).
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Affiliation(s)
- Amna Murtaza
- Centre for Research in Ionic Liquids, School of Chemistry, University of the Punjab 54590 Lahore Pakistan
| | - Maliha Uroos
- Centre for Research in Ionic Liquids, School of Chemistry, University of the Punjab 54590 Lahore Pakistan
| | - Misbah Sultan
- Centre for Applied Chemistry, School of Chemistry, University of the Punjab 54590 Lahore Pakistan
| | - Rabia Muazzam
- Centre for Research in Ionic Liquids, School of Chemistry, University of the Punjab 54590 Lahore Pakistan
| | - Sadia Naz
- Centre for Research in Ionic Liquids, School of Chemistry, University of the Punjab 54590 Lahore Pakistan
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11
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Sofińska-Chmiel W, Kołodyńska D, Adamczuk A, Świetlicki A, Goliszek M, Smagieł R. Studies on the Mechanism of Cu(II) Ion Sorption on Purolite S 940 and Purolite S 950. MATERIALS 2021; 14:ma14112915. [PMID: 34071511 PMCID: PMC8198485 DOI: 10.3390/ma14112915] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/26/2021] [Accepted: 05/27/2021] [Indexed: 12/16/2022]
Abstract
The aim of the presented research was to investigate the mechanism of sorption of Cu(II) ions on the commercially available Purolite S 940 and Purolite S 950 chelating ion exchangers with the aminophosphonic functional groups. In order to understand better the sorption mechanism, the beads were cut with an ultramicrotome before and after the Cu(II) ion sorption process. The cut beads were examined by scanning electron microscopy (SEM) with an EDX detector. The performed linear profiles of the elemental composition allowed us to examine the depth with which the sorbed metal penetrates into. For further investigations concerning the mechanism of the sorption process, the Fourier transform infrared spectroscopy (FTIR) analysis using the attenuated total reflectance (ATR) technique and the X-ray photoelectron spectroscopy (XPS) methods have been used. The comparison of FTIR and XPS spectra before and after the sorption of Cu(II) ions showed that free electron pairs from nitrogen and oxygen in the aminophosphonic functional groups participate in the process of copper ion sorption. In addition, the microscopic studies suggested that the process of ion exchange between Na(I) ions and sorbed Cu(II) ions takes place on the Purolite S 940 and Purolite S 950. This study concerning the in-depth understanding the of Cu(II) sorption mechanism, using modern analytical tools and research methods could be very useful for its further modifications leading to the improvement of the process efficiency.
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Affiliation(s)
- Weronika Sofińska-Chmiel
- Analytical Laboratory, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie Skłodowska University, Maria Curie Skłodowska Sq. 2, 20-031 Lublin, Poland;
- Correspondence:
| | - Dorota Kołodyńska
- Department of Inorganic Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie Skłodowska University, Maria Curie Skłodowska Sq. 2, 20-031 Lublin, Poland;
| | - Agnieszka Adamczuk
- Institute of Agrophysics PAS, Doświadczalna 4 Str., 20-290 Lublin, Poland;
| | - Aleksander Świetlicki
- Department of Materials Engineering, Mechanical Engineering Faculty, Lublin University of Technology, Nadbystrzycka 36 Str., 20-618 Lublin, Poland;
| | - Marta Goliszek
- Analytical Laboratory, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie Skłodowska University, Maria Curie Skłodowska Sq. 2, 20-031 Lublin, Poland;
| | - Radosław Smagieł
- Biolive Innovation, B. Dobrzańskiego 3 Str., 20-262 Lublin, Poland;
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12
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13
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Li B, Zeng HC. Minimalization of Metallic Pd Formation in Suzuki Reaction with a Solid-State Organometallic Catalyst. ACS APPLIED MATERIALS & INTERFACES 2020; 12:33827-33837. [PMID: 32627521 DOI: 10.1021/acsami.0c09739] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Suzuki reaction usually uses palladium (Pd) complexes to accommodate a wide range of substrates. In pursuing greener synthesis, immobilization of Pd complexes with various support materials has shown promising potential. Although this approach can give stable conversion, initially immobilized Pd ions are largely reduced to Pd0 aggregates and turned essentially into supported nanoparticles after use, which departs from its original intention of complex immobilization and thus hampers its activity. Herein, we immobilize noble metal ions into a spherical thiolated organosilica. This new type of catalysts can catalyze Suzuki reaction homogeneously via leaching out Pd ions and shuttling them back after the reaction. The excellent reusability attained can be attributed to minimalization of forming metallic palladium. Thus, the developed catalysts can be viewed as a two-way device to release and to restore metal ions for homogeneous catalysis.
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Affiliation(s)
- Bowen Li
- Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, 119260, Singapore
| | - Hua Chun Zeng
- Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, 119260, Singapore
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14
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Sokołowska K, Luan Z, Hulkko E, Rameshan C, Barrabés N, Apkarian VA, Lahtinen T. Chemically Selective Imaging of Individual Bonds through Scanning Electron Energy-Loss Spectroscopy: Disulfide Bridges Linking Gold Nanoclusters. J Phys Chem Lett 2020; 11:796-799. [PMID: 31939675 DOI: 10.1021/acs.jpclett.9b03496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
As proof-of-principle of chemically selective, spatially resolved imaging of individual bonds, we carry out electron energy-loss spectroscopy in a scanning transmission electron microscopy instrument on atomically precise, thiolate-coated gold nanoclusters linked with 5,5'-bis(mercaptomethyl)-2,2'-bipyridine dithiol ligands. The images allow the identification of bridging disulfide bonds (R-S-S-R) between clusters, and X-ray photoelectron spectra support the finding.
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Affiliation(s)
- Karolina Sokołowska
- Department of Chemistry, Nanoscience Center , University of Jyväskylä , P.O. Box 35, 40014 Jyväskylä , Finland
| | - Zhongyue Luan
- Department of Material Science and Engineering , University of California, Irvine , Irvine , California 92697 , United States
| | - Eero Hulkko
- Department of Chemistry, Nanoscience Center , University of Jyväskylä , P.O. Box 35, 40014 Jyväskylä , Finland
- Department of Electronics and Nanoengineering , Aalto University , P.O. BOX 11000, FI-00076 Espoo , Finland
| | - Christoph Rameshan
- Faculty of Technical Chemistry, Institute of Materials Chemistry , Technische Universität Wien , 1060 Vienna , Austria
| | - Noelia Barrabés
- Faculty of Technical Chemistry, Institute of Materials Chemistry , Technische Universität Wien , 1060 Vienna , Austria
| | - Vartkess A Apkarian
- Department of Chemistry , University of California, Irvine , Irvine , California 92697 , United States
| | - Tanja Lahtinen
- Department of Chemistry, Nanoscience Center , University of Jyväskylä , P.O. Box 35, 40014 Jyväskylä , Finland
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15
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Wei M, Shi X, Xiao L, Zhang H. Synthesis of polyimide-modified carbon nanotubes as catalyst for organic pollutant degradation via production of singlet oxygen with peroxymonosulfate without light irradiation. JOURNAL OF HAZARDOUS MATERIALS 2020; 382:120993. [PMID: 31465944 DOI: 10.1016/j.jhazmat.2019.120993] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 08/06/2019] [Accepted: 08/10/2019] [Indexed: 06/10/2023]
Abstract
Polyimide-modified carbon nanotubes (PI/CNTs) were synthesized via a solvent-free thermal method and used as a metal-free catalyst to activate peroxymonosulfate for organic contaminant degradation without light irradiation. The characterization results suggested that PI was loaded onto the surface of CNTs. The catalytic ability of the PI/CNTs was strongly correlated with the content of PI in the catalysts. The PI/CNTs (22% of PI) showed the highest catalytic efficiency for organic pollutant degradation at room temperature. The degradation efficiency of acid orange 7 (AO7) dye was significantly enhanced to 98.9% within 15 min, compared to the efficiency of 2.2% exhibited by pure PI. The radical quenching tests and electron paramagnetic resonance spectrometry proved that singlet oxygen, instead of hydroxyl radicals or sulfate radicals, played a dominant role during the catalytic oxidation of AO7. The influences of operation parameters including temperature and catalyst amount were investigated. The PI/CNTs metal-free catalyst exhibited high catalytic activity under a broad range of pH values. The recycling study of four repeated reactions demonstrated good stability of the PI/CNTs. This work provided a promising metal-free catalyst for degradation of organic pollutants in aqueous solutions, contributing to the development of green materials for sustainable remediation.
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Affiliation(s)
- Mingyu Wei
- School of Resource and Environmental Science, Key Laboratory for Biomass-Resource Chemistry and Environmental Biotechnology of Hubei Province, Wuhan University, Wuhan 430072, PR China; Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Xiaowen Shi
- School of Resource and Environmental Science, Key Laboratory for Biomass-Resource Chemistry and Environmental Biotechnology of Hubei Province, Wuhan University, Wuhan 430072, PR China
| | - Ling Xiao
- School of Resource and Environmental Science, Key Laboratory for Biomass-Resource Chemistry and Environmental Biotechnology of Hubei Province, Wuhan University, Wuhan 430072, PR China.
| | - Haifei Zhang
- Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom.
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16
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Brush-modified materials: Control of molecular architecture, assembly behavior, properties and applications. Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2019.101180] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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17
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Ghiassian S, Yu L, Gobbo P, Nazemi A, Romagnoli T, Luo W, Luyt LG, Workentin MS. Nitrone-Modified Gold Nanoparticles: Synthesis, Characterization, and Their Potential as 18F-Labeled Positron Emission Tomography Probes via I-SPANC. ACS OMEGA 2019; 4:19106-19115. [PMID: 31763533 PMCID: PMC6868604 DOI: 10.1021/acsomega.9b02322] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 10/28/2019] [Indexed: 05/11/2023]
Abstract
A novel bioorthogonal gold nanoparticle (AuNP) template displaying interfacial nitrone functional groups for bioorthogonal interfacial strain-promoted alkyne-nitrone cycloaddition reactions has been synthesized. These nitrone-AuNPs were characterized in detail using 1H nuclear magnetic resonance spectroscopy, transmission electron microscopy, thermogravimetric analysis, and X-ray photoelectron spectroscopy, and a nanoparticle raw formula was calculated. The ability to control the conjugation of molecules of interest at the molecular level onto the nitrone-AuNP template allowed us to create a novel methodology for the synthesis of AuNP-based radiolabeled probes.
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Affiliation(s)
- Sara Ghiassian
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
| | - Lihai Yu
- London
Regional Cancer Program, 800 Commissioners Rd. E., London N6A 5W9, Ontario, Canada
| | - Pierangelo Gobbo
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
| | - Ali Nazemi
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
| | - Tommaso Romagnoli
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
| | - Wilson Luo
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
| | - Leonard G. Luyt
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
- London
Regional Cancer Program, 800 Commissioners Rd. E., London N6A 5W9, Ontario, Canada
| | - Mark S. Workentin
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
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18
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Ahmad N, Colak B, Gibbs MJ, Zhang DW, Gautrot JE, Watkinson M, Becer CR, Krause S. Peptide Cross-Linked Poly(2-oxazoline) as a Sensor Material for the Detection of Proteases with a Quartz Crystal Microbalance. Biomacromolecules 2019; 20:2506-2514. [PMID: 31244015 DOI: 10.1021/acs.biomac.9b00245] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Inflammatory conditions are frequently accompanied by increased levels of active proteases, and there is rising interest in methods for their detection to monitor inflammation in a point of care setting. In this work, new sensor materials for disposable single-step protease biosensors based on poly(2-oxazoline) hydrogels cross-linked with a protease-specific cleavable peptide are described. The performance of the sensor material was assessed targeting the detection of matrix metalloproteinase-9 (MMP-9), a protease that has been shown to be an indicator of inflammation in multiple sclerosis and other inflammatory conditions. Films of the hydrogel were formed on gold-coated quartz crystals using thiol-ene click chemistry, and the cross-link density was optimized. The degradation rate of the hydrogel was monitored using a quartz crystal microbalance (QCM) and showed a strong dependence on the MMP-9 concentration. A concentration range of 0-160 nM of MMP-9 was investigated, and a lower limit of detection of 10 nM MMP-9 was determined.
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Affiliation(s)
- Norlaily Ahmad
- School of Engineering and Materials Science , Queen Mary University of London , London , E1 4NS , United Kingdom.,Centre of Foundation Studies , Universiti Teknologi MARA , Cawangan Selangor, Kampus Dengkil , 43800 Dengkil , Selangor , Malaysia
| | - Burcu Colak
- School of Engineering and Materials Science , Queen Mary University of London , London , E1 4NS , United Kingdom
| | - Martin John Gibbs
- School of Engineering and Materials Science , Queen Mary University of London , London , E1 4NS , United Kingdom
| | - De-Wen Zhang
- Institute of Medical Engineering, School of Basic Medical Sciences , Xi'an Jiaotong University Health Science Center , Xi'an , 710061 , China
| | - Julien E Gautrot
- School of Engineering and Materials Science , Queen Mary University of London , London , E1 4NS , United Kingdom
| | - Michael Watkinson
- The Lennard-Jones Laboratories, School of Chemical and Physical Sciences , Keele University , Staffordshire , ST5 5BG , United Kingdom
| | - C Remzi Becer
- Department of Chemistry , University of Warwick , Coventry , CV47AL , United Kingdom
| | - Steffi Krause
- School of Engineering and Materials Science , Queen Mary University of London , London , E1 4NS , United Kingdom
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19
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Miao P, Liu Z, Guo J, Yuan M, Zhong R, Wang L, Zhang F. A novel ultrasensitive surface plasmon resonance-based nanosensor for nitrite detection. RSC Adv 2019; 9:17698-17705. [PMID: 35520579 PMCID: PMC9064595 DOI: 10.1039/c9ra02460c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 05/21/2019] [Indexed: 02/03/2023] Open
Abstract
Nitrite is a common food additive, however, its reduction product, nitrosamine, is a strong carcinogen, and hence the ultra-sensitive detection of nitrite is an effective means to prevent related cancers. In this study, different sized gold nanoparticles (AuNPs) were modified with P-aminothiophenol (ATP) and naphthylethylenediamine (NED). In the presence of nitrite, satellite-like AuNPs aggregates formed via the diazotization coupling reaction and the color of the system was changed by the functionalized AuNPs aggregates. The carcinogenic nitrite content could be detected by colorimetry according to the change in the system color. The linear concentration range of sodium nitrite was 0-1.0 μg mL-1 and the detection limit was determined to be 3.0 ng mL-1. Compared with the traditional method, this method has the advantages of high sensitivity, low detection limit, good selectivity and can significantly lower the naked-eye detection limit to 3.0 ng mL-1. In addition, this method is suitable for the determination of nitrite in various foods. We think this novel designed highly sensitive nitrate nanosensor holds great market potential.
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Affiliation(s)
- Pandeng Miao
- Grain College, Henan University of Technology Zhengzhou 450001 P. R. China
- State Key Laboratory of Respiratory Disease, Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital, Department of Biomedical Engineering, School of Basic Medical Sciences, Guangzhou Medical University Guangzhou 511436 P. R. China
| | - Zhongdong Liu
- Grain College, Henan University of Technology Zhengzhou 450001 P. R. China
| | - Jun Guo
- State Key Laboratory of Respiratory Disease, Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital, Department of Biomedical Engineering, School of Basic Medical Sciences, Guangzhou Medical University Guangzhou 511436 P. R. China
| | - Ming Yuan
- State Key Laboratory of Respiratory Disease, Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital, Department of Biomedical Engineering, School of Basic Medical Sciences, Guangzhou Medical University Guangzhou 511436 P. R. China
| | - Ruibo Zhong
- State Key Laboratory of Respiratory Disease, Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital, Department of Biomedical Engineering, School of Basic Medical Sciences, Guangzhou Medical University Guangzhou 511436 P. R. China
| | - Liping Wang
- School of Biomedical Engineering, Shanghai Jiaotong University Shanghai 200241 P. R. China
| | - Feng Zhang
- State Key Laboratory of Respiratory Disease, Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital, Department of Biomedical Engineering, School of Basic Medical Sciences, Guangzhou Medical University Guangzhou 511436 P. R. China
- School of Biomedical Engineering, Shanghai Jiaotong University Shanghai 200241 P. R. China
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20
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A dual-signal readout enzyme-free immunosensor based on hybridization chain reaction-assisted formation of copper nanoparticles for the detection of microcystin-LR. Biosens Bioelectron 2019; 126:151-159. [DOI: 10.1016/j.bios.2018.10.033] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 10/16/2018] [Indexed: 12/11/2022]
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21
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Mishra S, Sankararamakrishnan N. Characterization, evaluation, and mechanistic insights on the adsorption of antimonite using functionalized carbon nanotubes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:12686-12701. [PMID: 29468398 DOI: 10.1007/s11356-018-1347-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 01/22/2018] [Indexed: 06/08/2023]
Abstract
Floating catalytic chemical vapor deposition technique was used for synthesizing carbon nanotubes (CNTs) using ferrocene in benzene as the hydrocarbon source. The functionalization of CNTs was carried out by oxidation followed by grafting of potassium iodide (KI) and mercaptoethanol (HS(CH2)2OH) ligands to produce iodide-grafted CNTs (CNT-I) and thiol-functionalized CNTs (CNT-SH), respectively. The resulting adsorbents have been thoroughly characterized by various techniques. Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS) studies revealed the efficient grafting of the ligands. Further, their adsorption capacities towards antimonite have been assessed. The adsorption kinetics fitted the pseudo-second-order model for both the adsorbents. Moreover, the adsorption of Sb(III) followed Langmuir and Freundlich's model. The maximum adsorption capacity of CNT-I and CNT-SH for Sb(III) at pH 7 was found to be 200 and 140.85 mg/g, respectively. The interference effect of various ions on the adsorption of antimonite was studied. A suitable mechanism for Sb(III) adsorption has been postulated using TEM, XRD, XPS, and FTIR. The adaptability of the adsorbents was demonstrated by the removal capacity of Sb(III) at parts per billion levels from nuclear decontamination formulation (NAC) and tap water matrix as well.
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Affiliation(s)
- Shruti Mishra
- Centre for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India.
| | - Nalini Sankararamakrishnan
- Centre for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
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22
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Feng X, Deng C, Gao M, Yan G, Zhang X. Novel synthesis of glucose functionalized magnetic graphene hydrophilic nanocomposites via facile thiolation for high-efficient enrichment of glycopeptides. Talanta 2018; 179:377-385. [DOI: 10.1016/j.talanta.2017.11.040] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 10/30/2017] [Accepted: 11/17/2017] [Indexed: 12/21/2022]
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23
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Vasimalai N, Fernández-Argüelles MT, Espiña B. Detection of Sulfide Using Mercapto Tetrazine-Protected Fluorescent Gold Nanodots: Preparation of Paper-Based Testing Kit for On-Site Monitoring. ACS APPLIED MATERIALS & INTERFACES 2018; 10:1634-1645. [PMID: 29271189 DOI: 10.1021/acsami.7b11769] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This work demonstrates the development of a highly sensitive method to detect and quantify sulfide ions (S2-) in water samples. First, we synthesized 6-mercapto-s-triazolo(4,3-b)-s-tetrazine (MTT) by the reaction between formaldehyde and 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole at room temperature. The synthetic MTT was used as a capping ligand for the synthesis of gold nanodots (AuNDs) via a one-pot green method at room temperature with only a 10 min reaction time. Transmission electron microscopy images exhibited that the MTT-AuNDs have an average particle size of 1.9 nm and an emission maximum at 672 nm upon excitation at 360 nm. The synthesized highly red emissive MTT-AuNDs are used as specific fluorescent probes for the detection of S2-. The fluorescence of MTT-AuNDs was significantly and dose-dependently quenched by the addition of S2-. The observed fluorescence quenching was ascribed to the formation of an Au2S complex, which was determined by Raman and mass spectroscopy. A good linearity was achieved for the increasing concentration of S2- from 870 nM to 16 μM, and the detection limit was found to be 2 nM (S/N = 3). The S2- detection system that is described in this study was validated and agreed well with the standard methylene blue method. Furthermore, the present sensor was examined for its use in quantifying S2- in real water samples obtained from lakes and rivers. In addition, the specificity was checked against the most likely ion interferences in real water. Moreover, a cost-effective and viable paper-based S2- sensor was fabricated for environmental monitoring based on the use of MTT-AuNDs. The developed system would be an environmentally friendly and easy-to-use detection device for S2- in water.
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Affiliation(s)
- Nagamalai Vasimalai
- Life Sciences Department, INL-International Iberian Nanotechnology Laboratory , Av. Mestre José Veiga, 4715-330 Braga, Portugal
| | | | - Begoña Espiña
- Life Sciences Department, INL-International Iberian Nanotechnology Laboratory , Av. Mestre José Veiga, 4715-330 Braga, Portugal
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24
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Simpson EJ, Gobbo P, Bononi FC, Murrell E, Workentin MS, Luyt LG. Bombesin-functionalized water-soluble gold nanoparticles for targeting prostate cancer. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/jin2.33] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Emily J. Simpson
- Western University Chemistry; 1151 Richmond Street London Ontario N6A 5B7 Canada
| | - Pierangelo Gobbo
- Western University Chemistry; 1151 Richmond Street London Ontario N6A 5B7 Canada
| | - Fernanda C. Bononi
- Western University Chemistry; 1151 Richmond Street London Ontario N6A 5B7 Canada
| | - Emily Murrell
- Western University Chemistry; 1151 Richmond Street London Ontario N6A 5B7 Canada
| | - Mark S. Workentin
- Western University Chemistry; 1151 Richmond Street London Ontario N6A 5B7 Canada
| | - Leonard G. Luyt
- Western University Chemistry; 1151 Richmond Street London Ontario N6A 5B7 Canada
- London Regional Cancer Program; Western University Oncology; 790 Commissioners Rd. E London Ontario N6A 4L6 Canada
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25
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Tiwari P, Azad UP, Gupta S, Prakash R. Pd@TTF Tailored Nanostructured Platform: Voltammetric Estimation of Ceftazidime. ChemistrySelect 2017. [DOI: 10.1002/slct.201700700] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Preeti Tiwari
- School of Materials Science and Technology; Indian Institute of Technology (Banaras Hindu University); Varanasi- 221005 India
| | - Uday Pratap Azad
- School of Materials Science and Technology; Indian Institute of Technology (Banaras Hindu University); Varanasi- 221005 India
| | - Sandeep Gupta
- School of Materials Science and Technology; Indian Institute of Technology (Banaras Hindu University); Varanasi- 221005 India
| | - Rajiv Prakash
- School of Materials Science and Technology; Indian Institute of Technology (Banaras Hindu University); Varanasi- 221005 India
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26
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Liu SM, Mazunin D, Pattabiraman VR, Bode JW. Synthesis of Bifunctional Potassium Acyltrifluoroborates. Org Lett 2016; 18:5336-5339. [DOI: 10.1021/acs.orglett.6b02652] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Sizhou M. Liu
- Laboratorium
für Organische
Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Dmitry Mazunin
- Laboratorium
für Organische
Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Vijaya R. Pattabiraman
- Laboratorium
für Organische
Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Jeffrey W. Bode
- Laboratorium
für Organische
Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
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27
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Iranifam M. Analytical applications of chemiluminescence systems assisted by carbon nanostructures. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.08.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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28
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Ananthi A, Phani KL. Self-assembly of gold nanoparticles on sulphide functionalized polydopamine in application to electrocatalytic oxidation of nitric oxide. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.01.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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29
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Weissman MR, Winger KT, Ghiassian S, Gobbo P, Workentin MS. Insights on the Application of the Retro Michael-Type Addition on Maleimide-Functionalized Gold Nanoparticles in Biology and Nanomedicine. Bioconjug Chem 2016; 27:586-93. [DOI: 10.1021/acs.bioconjchem.5b00600] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Max R. Weissman
- The University of Western Ontario and the Centre for Materials and Biomaterials Research, Richmond Street, London, Ontario N6A 5B7, Canada
| | - Kathleen T. Winger
- The University of Western Ontario and the Centre for Materials and Biomaterials Research, Richmond Street, London, Ontario N6A 5B7, Canada
| | - Sara Ghiassian
- The University of Western Ontario and the Centre for Materials and Biomaterials Research, Richmond Street, London, Ontario N6A 5B7, Canada
| | - Pierangelo Gobbo
- The University of Western Ontario and the Centre for Materials and Biomaterials Research, Richmond Street, London, Ontario N6A 5B7, Canada
| | - Mark S. Workentin
- The University of Western Ontario and the Centre for Materials and Biomaterials Research, Richmond Street, London, Ontario N6A 5B7, Canada
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30
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Bayazit MK, Hodge SA, Clancy AJ, Menzel R, Chen S, Shaffer MSP. Carbon nanotube anions for the preparation of gold nanoparticle–nanocarbon hybrids. Chem Commun (Camb) 2016; 52:1934-7. [DOI: 10.1039/c5cc08726k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
This methodology highlights the unusual chemistry of negatively charged carbon nanotubes and provides a blueprint for the generation of hybrid nanomaterials.
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Affiliation(s)
| | | | - Adam J. Clancy
- Department of Chemistry
- Imperial College London
- London SW7 2AZ
- UK
| | - Robert Menzel
- Department of Chemistry
- Imperial College London
- London SW7 2AZ
- UK
| | - Shu Chen
- Department of Chemistry
- Imperial College London
- London SW7 2AZ
- UK
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31
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Ghiassian S, Gobbo P, Workentin MS. Water-Soluble Maleimide-Modified Gold Nanoparticles (AuNPs) as a Platform for Cycloaddition Reactions. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500685] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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32
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Northrop BH, Frayne SH, Choudhary U. Thiol–maleimide “click” chemistry: evaluating the influence of solvent, initiator, and thiol on the reaction mechanism, kinetics, and selectivity. Polym Chem 2015. [DOI: 10.1039/c5py00168d] [Citation(s) in RCA: 117] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The mechanism and kinetics of thiol–maleimide “click” reactions have been modeled computationally under a variety of conditions and further investigated using experimental competition reactions.
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33
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34
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Lee J, Ahmed SR, Oh S, Kim J, Suzuki T, Parmar K, Park SS, Lee J, Park EY. A plasmon-assisted fluoro-immunoassay using gold nanoparticle-decorated carbon nanotubes for monitoring the influenza virus. Biosens Bioelectron 2014; 64:311-7. [PMID: 25240957 DOI: 10.1016/j.bios.2014.09.021] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 09/03/2014] [Accepted: 09/06/2014] [Indexed: 12/17/2022]
Abstract
A plasmon-assisted fluoro-immunoassay (PAFI) was developed for the detection of the influenza virus by using Au nanoparticle (Au NP)-decorated carbon nanotubes (AuCNTs) that were synthesized using phytochemical composites at room temperature in deionized water. Specific antibodies (Abs) against the influenza virus were conjugated onto the surface of AuCNTs and cadmium telluride quantum dots (QDs), which had a photoluminescence intensity that varied as a function of virus concentration and a detection limit of 0.1 pg/mL for all three types of influenza viruses examined. The clinically isolated influenza viruses (A/Yokohama/110/2009 (H3N2)) were detected in the range of 50-10,000 PFU/mL, with a detection limit of 50 PFU/mL. From a series of proof-of-concept and clinical experiments, the developed PAFI biosensing system provided robust signal production and enhancement, as well as an excellent selectivity and sensitivity for influenza viruses. This nanoparticle-based technique could be potentially developed as an efficient detection platform for the influenza virus.
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Affiliation(s)
- Jaewook Lee
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka 422-8529, Japan; Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, Canada, T2N 1N4
| | - Syed Rahin Ahmed
- Department of Bioscience, Graduate School of Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka 422-8529, Japan; Department of Nano Fusion and Cogno-Mechatronics Engineering, Pusan National University, Busan 609-735, Republic of Korea
| | - Sangjin Oh
- Department of Nano Fusion and Cogno-Mechatronics Engineering, Pusan National University, Busan 609-735, Republic of Korea
| | - Jeonghyo Kim
- Department of Nano Fusion and Cogno-Mechatronics Engineering, Pusan National University, Busan 609-735, Republic of Korea
| | - Tetsuro Suzuki
- Department of Infectious Diseases, Hamamatsu University School of Medicine, 1-20-1 Higashi-ku, Handa-yama, Hamamatsu 431-3192, Japan
| | - Kaushik Parmar
- Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, Canada, T2N 1N4
| | - Simon S Park
- Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, Canada, T2N 1N4
| | - Jaebeom Lee
- Department of Nano Fusion and Cogno-Mechatronics Engineering, Pusan National University, Busan 609-735, Republic of Korea.
| | - Enoch Y Park
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka 422-8529, Japan; Department of Bioscience, Graduate School of Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka 422-8529, Japan.
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35
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Zhang H, Cui H. High-density assembly of chemiluminescence functionalized gold nanodots on multiwalled carbon nanotubes and their application as biosensing platforms. NANOSCALE 2014; 6:2563-2566. [PMID: 24457618 DOI: 10.1039/c3nr05574d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A one-step strategy was developed for high-density assembly of N-(aminobutyl)-N-(ethylisoluminol) (ABEI) functionalized gold nanodots onto the sidewalls of chitosan-grafted multiwalled carbon nanotubes (cs-MWCNTs) via the reduction of HAuCl4 with ABEI in the presence of cs-MWCNTs, resulting in novel hybrid nanomaterials with excellent chemiluminescence and electrochemiluminescence properties.
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Affiliation(s)
- Hongli Zhang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
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36
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Wang X, Shi J, Jiang Z, Li Z, Zhang W, Song X, Ai Q, Wu H. Preparation of Ultrathin, Robust Protein Microcapsules through Template-Mediated Interfacial Reaction between Amine and Catechol Groups. Biomacromolecules 2013; 14:3861-9. [DOI: 10.1021/bm400983a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Xiaoli Wang
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
- Synergetic
Innovation Center of Chemical Science and Engineering, Tianjin 300072, People’s Republic of China
| | - Jiafu Shi
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
- Synergetic
Innovation Center of Chemical Science and Engineering, Tianjin 300072, People’s Republic of China
| | - Zhongyi Jiang
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
- National
Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- Synergetic
Innovation Center of Chemical Science and Engineering, Tianjin 300072, People’s Republic of China
| | - Zheng Li
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Wenyan Zhang
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
- Synergetic
Innovation Center of Chemical Science and Engineering, Tianjin 300072, People’s Republic of China
| | - Xiaokai Song
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
- Synergetic
Innovation Center of Chemical Science and Engineering, Tianjin 300072, People’s Republic of China
| | - Qinghong Ai
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
- Synergetic
Innovation Center of Chemical Science and Engineering, Tianjin 300072, People’s Republic of China
| | - Hong Wu
- Key
Laboratory for Green Chemical Technology of Ministry of Education,
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
- Synergetic
Innovation Center of Chemical Science and Engineering, Tianjin 300072, People’s Republic of China
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37
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Milne M, Gobbo P, McVicar N, Bartha R, Workentin MS, Hudson RHE. Water-soluble gold nanoparticles (AuNP) functionalized with a gadolinium(iii) chelate via Michael addition for use as a MRI contrast agent. J Mater Chem B 2013; 1:5628-5635. [DOI: 10.1039/c3tb20699h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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