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Lee SY, Kim U, Kim Y, Lee SJ, Park EY, Oh SW. Enhanced detection of Listeria monocytogenes using tetraethylenepentamine-functionalized magnetic nanoparticles and LAMP-CRISPR/Cas12a-based biosensor. Anal Chim Acta 2023; 1281:341905. [PMID: 38783743 DOI: 10.1016/j.aca.2023.341905] [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: 08/17/2023] [Revised: 10/06/2023] [Accepted: 10/10/2023] [Indexed: 05/25/2024]
Abstract
BACKGROUND Listeria monocytogenes is a pathogenic bacterium that can lead to severe illnesses, especially among vulnerable populations. Therefore, the development of rapid and sensitive detection methods is vital to prevent and manage foodborne diseases. In this study, we used tetraethylenepentamine (TEPA)-functionalized magnetic nanoparticles (MNPs) and a loop-mediated isothermal amplification (LAMP)-based CRISPR/Cas12a-based biosensor to concentrate and detect, respectively, L. monocytogenes. LAMP enables DNA amplification at a constant temperature, providing a highly suitable approach for point-of-care testing (POCT). The ability of CRISPR/Cas12a to cleave ssDNA reporter, coupled with TEPA-functionalized MNPs effective attachment to negatively charged bacteria, forms a promising biosensor. RESULTS The LAMP assay was meticulously developed by selecting specific primers and designing crRNA sequences targeting a specific region within the hly gene of L. monocytogenes. We selected primer and refined the amplification conditions by systematically exploring a temperature range from 59 °C to 69 °C, ensuring the attainment of optimal performance. This process was complemented by systematic optimization of LAMP-CRISPR/Cas12a system parameters. In particular, we successfully established the optimal ssDNA reporter concentrations (0-1.2 μM) and Cas12a-mediated trans-cleavage times (0-20 min), crucial components that underpin the effectiveness of the LAMP-CRISPR/Cas12a-based biosensor. For optimizing parameters in capturing L. monocytogenes using TEPA-functionalized MNPs, capture efficiency was significantly enhanced through adjustments in TEPA-functionalized MNPs concentration, incubation times, and magnetic separation duration. Large-volume (20 mL) magnetic separation exhibited a 10-fold sensitivity improvement over conventional methods. Utilizing TEPA-functionalized MNPs, the LAMP-CRISPR/Cas12a-based biosensor achieved detection limits of 100 CFU mL-1 in pure cultures and 100 CFU g-1 in enoki mushrooms. SIGNIFICANCE The integration of this novel technique with the LAMP-CRISPR/Cas12a-based biosensor enhances the accuracy and sensitivity of L. monocytogenes detection in foods, and it can be a promising biosensor for POCT. The 10-fold increase in sensitivity compared to conventional methods makes this approach a groundbreaking advancement in pathogenic bacteria detection for food safety and public health.
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Affiliation(s)
- So-Young Lee
- Department of Food and Nutrition, Kookmin University, Seoul, 136-702, Republic of Korea
| | - Unji Kim
- Department of Food and Nutrition, Kookmin University, Seoul, 136-702, Republic of Korea
| | - Younggyu Kim
- Lumimac, Inc, B1, 4, Dongnam-ro 2 gil, Songpa-gu, Seoul, Republic of Korea
| | - Seung Jae Lee
- Lumimac, Inc, B1, 4, Dongnam-ro 2 gil, Songpa-gu, Seoul, Republic of Korea
| | - Eun Young Park
- Lumimac, Inc, B1, 4, Dongnam-ro 2 gil, Songpa-gu, Seoul, Republic of Korea
| | - Se-Wook Oh
- Department of Food and Nutrition, Kookmin University, Seoul, 136-702, Republic of Korea.
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Rezaei Kolarijani N, Cheraghali D, Khastar H, Ehterami A, Alizade M, Vaez A, Amini SM, Salehi M. Nanofibrous polycaprolactone/gelatin scaffold containing gold nanoparticles: Physicochemical and biological characterization for wound healing. Wound Repair Regen 2023; 31:804-815. [PMID: 37955556 DOI: 10.1111/wrr.13126] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 07/19/2023] [Accepted: 10/13/2023] [Indexed: 11/14/2023]
Abstract
In this study, gold nanoparticles were loaded into poly (ε-caprolactone) (PCL)/gelatin nanofibrous matrices to fabricate a potential wound dressing. The mats were produced by electrospinning of PCL/gelatin solution supplemented with synthesized gold nanoparticles (200, 400 and 800 ppm). Prepared scaffolds were investigated regarding their chemical properties, morphology, mechanical properties, surface wettability, water-uptake capacity, water vapor permeability, porosity, blood compatibility, microbial penetration test and cellular response. In addition to in vivo study, a full-thickness excisional wound in a rat model was used to evaluate the healing effect of prepared scaffolds. Results showed appropriate mechanical properties and porosity of prepared scaffolds. With L929 cells, the PCL/gelatin scaffold containing 400 ppm gold nanoparticles demonstrated the greatest cell growth. In vivo results validated the favorable wound-healing benefits of the scaffold incorporating gold nanoparticles, which triggered wound healing compared to sterile gauze. Our results showed the capability of nanofibrous matrices containing gold nanoparticles for successful wound treatment.
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Affiliation(s)
- Nariman Rezaei Kolarijani
- Student Research Committee, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Danial Cheraghali
- Department of Mechanical Engineering, New Jersey Institute of Technology, New Jersey, USA
| | - Hossein Khastar
- School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Arian Ehterami
- Institute for Regenerative Medicine (IREM), University of Zurich, Zurich, Switzerland
| | - Morteza Alizade
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Ahmad Vaez
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyed Mohammad Amini
- Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Majid Salehi
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
- Tissue Engineering and Stem Cells Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
- Sexual Health and Fertility Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
- Center Incubator Technology Health of Medical Science, University of Shahroud, Shahroud, Iran
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3
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Xiao F, Li W, Xu H. Advances in magnetic nanoparticles for the separation of foodborne pathogens: Recognition, separation strategy, and application. Compr Rev Food Sci Food Saf 2022; 21:4478-4504. [PMID: 36037285 DOI: 10.1111/1541-4337.13023] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 07/20/2022] [Accepted: 07/25/2022] [Indexed: 01/28/2023]
Abstract
Foodborne pathogens contamination is one of the main sources of food safety problems. Although the existing detection methods have been developed for a long time, the complexity of food samples is still the main factor affecting the detection time and sensitivity, and the rapid separation and enrichment of pathogens is still an objective to be studied. Magnetic separation strategy based on magnetic nanoparticles (MNPs) is considered to be an effective tool for rapid separation and enrichment of foodborne pathogens in food. Therefore, this study comprehensively reviews the development of MNPs in the separation of foodborne pathogens over the past decade. First, various biorecognition reagents for identification of foodborne pathogens and their modifications on the surface of MNPs are introduced. Then, the factors affecting the separation of foodborne pathogens, including the size of MNPs, modification methods, separation strategies and separation forms are discussed. Finally, the application of MNPs in integrated detection methods is reviewed. Moreover, current challenges and prospects of MNPs for the analysis of foodborne pathogens are discussed. Further research should focus on the design of multifunctional MNPs, the processing of large-scale samples, the simultaneous analysis of multiple targets, and the development of all-in-one small analytical device with separation and detection.
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Affiliation(s)
- Fangbin Xiao
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, P. R. China
| | - Weiqiang Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, P. R. China
| | - Hengyi Xu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, P. R. China
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4
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Zhang H, Xu J, Zhang X, Wang T, Zhou D, Shu W, Zhao T, Fang W. One-Pot Synthesis of Ag/Quaternary Ammonium Salt Co-Decorated Mesoporous Silica Nanoparticles for Synergistic Treatment of Cancer and Bacterial Infections. Front Bioeng Biotechnol 2022; 10:875317. [PMID: 35928953 PMCID: PMC9344533 DOI: 10.3389/fbioe.2022.875317] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 06/02/2022] [Indexed: 11/13/2022] Open
Abstract
Developing drug delivery nanosystems with both anticancer and antibacterial effects is of great clinical value. Herein, we report a facile approach to synthesize Ag and quaternary ammonium salt (QAS) co-decorated mesoporous silica nanoparticles (MSNs), namely, Ag/QAS-MSNs, for synergistic treatment of cancer and bacterial infections. In vitro studies demonstrated that Ag/QAS-MSNs not only had a strong antibacterial activity against the bacterial pathogens but also could efficiently induce cancer cell death through an apoptotic pathway. Moreover, in vivo combination therapy with Ag and QAS in Ag/QAS-MSNs was also tested in a nude mouse tumor model, and a significant synergistic anticancer effect, which is superior to that obtained by therapy with Ag-MSNs or QAS-MSNs alone, was achieved. Such excellent anticancer and antibacterial activity of Ag/QAS-MSNs could be attributed to the synergistic effect of Ag ions and QAS. Thus, Ag/QAS-MSNs have a promising future as potent anticancer agents with high antibacterial performance.
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Affiliation(s)
- Hanyuan Zhang
- Department of Orthopedics, Department of Sports Medicine and Arthroscopic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jianxiang Xu
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Xu Zhang
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Teng Wang
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Dairan Zhou
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Wei Shu
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Tingting Zhao
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- *Correspondence: Tingting Zhao, ; Weijun Fang,
| | - Weijun Fang
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- *Correspondence: Tingting Zhao, ; Weijun Fang,
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Xiao F, Liu J, Feng X, Xie G, Zhang W, Xu H. Rapid enrichment and detection of Staphylococcus aureus in milk using polyethyleneimine functionalized magnetic nanoparticles. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107388] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Zhang M, He L, Zhang X, Wang S, Zhang B, Hsieh L, Yang K, Tong M. Improved removal performance of Gram-negative and Gram-positive bacteria in sand filtration system with arginine modified biochar amendment. WATER RESEARCH 2022; 211:118006. [PMID: 35032874 DOI: 10.1016/j.watres.2021.118006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 12/17/2021] [Accepted: 12/21/2021] [Indexed: 06/14/2023]
Abstract
Bacterial removal by sand filtration system is commonly inefficient due to the low bacterial adsorption capacity of sand. To improve the bacterial removal performance, biochar fabricated at different temperatures (400 °C, 550 °C and 700 °C) and arginine modified biochar were added into sand filtration columns as filter layers (0.5 and 1 wt%). Addition of biochar into sand columns could improve the removal efficiency for both Escherichia coli and Bacillus subtilis under both slow (4 m/day) and fast (240 m/day) filtration conditions. Bacterial removal efficiency in sand columns with the addition of biochar fabricated at 700 °C were higher than those fabricated at 400 °C and 550 °C due to its best bacterial adsorption capacity. Modification of biochar with arginine could further improve the bacterial removal performance. Specifically, complete bacterial removal (1.35 × 107 ± 10% cells/mL) could be achieved under both slow and fast filtration conditions in sand columns with 1 wt% arginine functionalized biochar amendment. The enhanced bacterial adsorption capacity mainly contributed to the increased bacterial capture performance in columns with addition of arginine-modified biochar. Bacteria more tightly bounded with arginine-modified biochar than bulk biochar. Moreover, complete bacterial removal with the copresence of 5 mg/L humic acid in suspensions was acquired in columns with addition of 1 wt% arginine-modified biochar. Efficient bacterial removal in actual river water, multiple filtration cycles as well as longtime injection duration (100 pore volumes injection) was also obtained. The results of this study demonstrated that arginine-modified biochar had great potential to treat water contaminated by pathogenic bacteria.
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Affiliation(s)
- Mengya Zhang
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education; College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, PR China
| | - Lei He
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education; College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, PR China
| | - Xiangwei Zhang
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education; College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, PR China
| | - Shuai Wang
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education; College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, PR China
| | - Boaiqi Zhang
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education; College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, PR China
| | - Lichun Hsieh
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education; College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, PR China
| | - Kun Yang
- Department of Environmental Science, Zhejiang University; Key Laboratory of Environmental Pollution and Ecological Health of Ministry of Education; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou 310058, PR China
| | - Meiping Tong
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education; College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, PR China.
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Spagnolo S, De La Franier B, Davoudian K, Hianik T, Thompson M. Detection of E. coli Bacteria in Milk by an Acoustic Wave Aptasensor with an Anti-Fouling Coating. SENSORS 2022; 22:s22051853. [PMID: 35270999 PMCID: PMC8914748 DOI: 10.3390/s22051853] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 02/04/2023]
Abstract
Milk is a significant foodstuff around the world, being produced and consumed in large quantities. The safe consumption of milk requires that the liquid has an acceptably low level of microbial contamination and has not been subjected to spoiling. Bacterial safety limits in milk vary by country but are typically in the thousands per mL of sample. To rapidly determine if samples contain an unsafe level of bacteria, an aptamer-based sensor specific to Escherichia coli bacteria was developed. The sensor is based on an ultra-high frequency electromagnetic piezoelectric acoustic sensor device (EMPAS), with the aptamer being covalently bound to the sensor surface by the anti-fouling linker, MEG-Cl. The sensor is capable of the selective measurement of E. coli in PBS and in cow’s milk samples down to limits of detection of 35 and 8 CFU/mL, respectively, which is well below the safe limits for commercial milk products. This sensing system shows great promise for the milk industry for the purpose of rapid verification of product safety.
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Affiliation(s)
- Sandro Spagnolo
- Faculty of Mathematics, Physics and Information, Comenius University, Mlynská dolina F1, 842 48 Bratislava, Slovakia; (S.S.); (T.H.)
| | - Brian De La Franier
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada; (B.D.L.F.); (K.D.)
| | - Katharina Davoudian
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada; (B.D.L.F.); (K.D.)
| | - Tibor Hianik
- Faculty of Mathematics, Physics and Information, Comenius University, Mlynská dolina F1, 842 48 Bratislava, Slovakia; (S.S.); (T.H.)
| | - Michael Thompson
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada; (B.D.L.F.); (K.D.)
- Correspondence: ; Tel.: +1-416-978-3575
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8
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Lee SY, Chen F, Lee TY. Tryptamine-functionalized magnetic nanoparticles for highly sensitive detection of Salmonella typhimurium. Analyst 2021; 146:2559-2566. [PMID: 33899066 DOI: 10.1039/d0an02458a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
There is significant demand for the development of rapid, sensitive, and specific methods for detecting bacterial pathogens in order to identify the causes of food poisoning. Nucleic acid amplification tests (NAATs) allow for the culture-free detection of bacterial pathogens and are not as labor intensive and time consuming as culture-based detection methods. However, suitable sample preparation methods must be developed for the realization of simple, rapid, and sensitive NAATs. To resolve this problem, we developed a new sample preparation method that integrates bacterial pathogen enrichment and DNA extraction. We engineered magnetic nanoparticles (MNPs) with a physicochemical probe (tryptamine) for single-tube sample preparation with minimal sample loss. The tryptamine-functionalized MNPs (Indole@MNPs) showed inherent hydrophobicity owing to the indole side chain and a change in their zeta potential with a decrease in the pH. Because of their physicochemical characteristics, the Indole@MNPs could adsorb bacterial pathogens, thus allowing sample enrichment and DNA binding and release through weak electrostatic interactions via pH control. We successfully detected Salmonella enterica serovar Typhimurium, a common cause of bacterial food poisoning, at a concentration of 10 CFU/10 mL in milk samples using quantitative PCR. Thus, the proposed method allows for the simple and sensitive detection of Salmonella typhimurium and can be used for nontyphoidal salmonella detection to ensure food safety.
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Affiliation(s)
- Seon-Yeong Lee
- Department of Technology Education, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Feixiong Chen
- Department of Convergence System Engineering and Department of Biomedical Engineering, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Tae Yoon Lee
- Department of Technology Education, Chungnam National University, Daejeon, 34134, Republic of Korea and Department of Convergence System Engineering and Department of Biomedical Engineering, Chungnam National University, Daejeon, 34134, Republic of Korea
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9
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Liu WY, Wang W, Ju XJ, Liu Z, Xie R, Chu LY. Functional microparticles from multiscale regulation of multiphase emulsions for mass-transfer intensification. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2020.116242] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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10
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Integrated strategy for the separation of endotoxins from biofluids. LPS capture on newly synthesized protein. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117689] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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11
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Lee H, Han H, Jeon S. Baleen-Mimicking Virtual Filters for Rapid Detection of Pathogenic Bacteria in Water Using Magnetic Nanoparticle Chains and a Halbach Ring. ACS Sens 2020; 5:3432-3437. [PMID: 33104342 DOI: 10.1021/acssensors.0c01334] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We have developed a virtual filter that quickly and efficiently captures and detects pathogenic bacteria in large amounts of water. The virtual filter comprised magnetic nanoparticle chains (MNCs) obtained by cross-linking alginate-coated magnetic nanoparticles (MNPs). When the MNC solution in a disposable plastic tube was exposed to an external magnetic field, the MNCs were aligned along the magnetic field lines, forming a filter similar to a whale's baleen filtering system. A Halbach ring that increased the magnetic field inside the ring was used as the source of an external magnetic field. The Halbach ring produced a more uniform and denser alignment of MNCs than any other ring array. To demonstrate the performance of the virtual filter comprising MNCs, Escherichia coli (E. coli) O157-spiked water was injected into the virtual filter comprising polyethyleneimine-coated MNCs, and the concentration of E. coli O157 captured by electrostatic interaction was determined using qPCR analysis. The bacterial capture efficiency using MNCs was 90% at a flow rate of 5 mL/min, and the detection limit after 10 min of preconcentration of bacteria was 10 cfu/mL, which is 100 times lower than that obtained using qPCR alone.
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Affiliation(s)
- Hyeonjeong Lee
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Gyeongbuk, Republic of Korea
| | - Hyunsoo Han
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Gyeongbuk, Republic of Korea
| | - Sangmin Jeon
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Gyeongbuk, Republic of Korea
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12
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A single-tube sample preparation method based on a dual-electrostatic interaction strategy for molecular diagnosis of gram-negative bacteria. Mikrochim Acta 2020; 187:558. [PMID: 32914337 DOI: 10.1007/s00604-020-04536-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 08/27/2020] [Indexed: 10/23/2022]
Abstract
A single-tube method based on a dual-electrostatic interaction (EI) strategy for bacteria capture and DNA extraction was designed to enable the highly sensitive detection of nucleic acids. Specially designed magnetic nanoparticles were developed to meet the opposing requirements of a single-tube method, which exist between the strong EI required for efficient bacteria capture and the weak EI required for DNA extraction with minimal DNA adsorption. A dual-EI strategy for the single-tube (DESIGN) method was thus developed to integrate bacteria enrichment, bacteria cell lysis, and DNA recovery in a single tube, thereby minimizing precious sample loss and reducing handling time. Subsequently, we evaluated the performance with a variety of concentrations from 5 to 100 colony-forming units (CFU)/10 mL human urine and milk samples. The DESIGN method achieved the simple and sensitive detection of Salmonella enterica serovar Typhimurium in 10 mL of human urine and milk samples up to 5 CFU by quantitative PCR. Furthermore, the DESIGN method detected Brucella ovis and Escherichia coli from 10 mL of human urine with a detection limit up to 5 CFU/10 mL. Graphical abstract.
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Wang X, Wan R, Gu H, Fu G, Tang H, Hu G. Well-water-dispersed N-trimethyl chitosan/Fe 3O 4 hybrid nanoparticles as peroxidase mimetics for quick and effective elimination of bacteria. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:969-983. [PMID: 32085685 DOI: 10.1080/09205063.2020.1733751] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Fe3O4 nanoparticles, used as peroxidase mimetics, exhibit splendid future in the biomedical field. However, the functionalization on Fe3O4 nanoparticles always goes with the loss of superparamagnetism and decrease in peroxidase-activity. Here, we synthesized green polyethylene glycol (PEG)-functionalized magnetic/N-trimethyl chitosan (CS) hybrid nanoparticles (Fe3O4@PAA/TMC/PEG NPs) with improved water dispersibility, superparamagnetism, high saturation magnetization and well peroxidase-like activity. The functionalized coating was divided in two steps, one involved a cross-linked PEG/PAA/CS middle layer to protect the nanocrystal Fe3O4 from oxidization, the other was a hydrophilic PEG/TMC outer layer improving the water dispersion, biocompatibility, as well as supplying positive quaternary ammonium groups for a potential increase of cell binding efficiency. The structure, composition and morphology of Fe3O4@PAA/TMC/PEG NPs were characterized by TEM, FT-IR spectroscopy, DLS, zeta potential measurement, respectively. Thermal performance was characterized by TGA, and the peroxidase-like mimics activity was tested by TMB·2HCl colour development experiments. The magnetic property of the as-prepared hybrid nanoparticles was first confirmed by VSM, and then proved by the bacterial pathogens adsorption, especially at ultralow pathogen concentration. Particularly, with an external magnet, the Fe3O4@PAA/TMC/PEG NPs, combined cationic quaternary ammonium groups and peroxidise-mimetic catalytic activity, were tested for antibacterial effect by plating method.
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Affiliation(s)
- Xiaojuan Wang
- Tianjin Institute of Urology, The Second Hospital, Tianjin Medical University, Tianjin, People's Republic of China
| | - Rongxin Wan
- Tianjin Institute of Urology, The Second Hospital, Tianjin Medical University, Tianjin, People's Republic of China
| | - Hanqing Gu
- Tianjin Institute of Urology, The Second Hospital, Tianjin Medical University, Tianjin, People's Republic of China
| | - Guoqi Fu
- Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, Department of Chemistry, Nankai University, Tianjin, People's Republic of China
| | - Huiqin Tang
- Tianjin Institute of Urology, The Second Hospital, Tianjin Medical University, Tianjin, People's Republic of China
| | - Guoying Hu
- Tianjin Institute of Urology, The Second Hospital, Tianjin Medical University, Tianjin, People's Republic of China
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14
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Fang W, Zhu W, Chen H, Zhang H, Hong S, Wei W, Zhao T. MRI Enhancement and Tumor Targeted Drug Delivery Using Zn2+-Doped Fe3O4 Core/Mesoporous Silica Shell Nanocomposites. ACS APPLIED BIO MATERIALS 2020; 3:1690-1697. [DOI: 10.1021/acsabm.9b01244] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Weijun Fang
- College of Basic Medicine, Anhui Medical University, Hefei 230032, China
| | - Wenjuan Zhu
- School of Chemistry and Chemical Engineering, Hefei Normal University, Hefei 230601, China
| | - Hu Chen
- School of Chemistry and Chemical Engineering, Hefei Normal University, Hefei 230601, China
| | - Hanyuan Zhang
- Department of Sports Medicine and Arthroscopic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Shi Hong
- College of Basic Medicine, Anhui Medical University, Hefei 230032, China
| | - Wenmei Wei
- College of Basic Medicine, Anhui Medical University, Hefei 230032, China
| | - Tingting Zhao
- College of Basic Medicine, Anhui Medical University, Hefei 230032, China
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15
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Guan Y, Tsao CY, Quan DN, Li Y, Mei L, Song Y, Zhang B, Liu Y, Payne GF, Bentley WE, Wang Q. Focusing quorum sensing signalling by nano-magnetic assembly. Environ Microbiol 2019; 20:2585-2597. [PMID: 29806719 DOI: 10.1111/1462-2920.14284] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 05/14/2018] [Accepted: 05/14/2018] [Indexed: 12/21/2022]
Abstract
Quorum sensing (QS) exists widely among bacteria, enabling a transition to multicellular behaviour after bacterial populations reach a particular density. The coordination of multicellularity enables biotechnological application, dissolution of biofilms, coordination of virulence, and so forth. Here, a method to elicit and subsequently disperse multicellular behaviour among QS-negative cells is developed using magnetic nanoparticle assembly. We fabricated magnetic nanoparticles (MNPs, ∼5 nm) that electrostatically collect wild-type (WT) Escherichia coli BL21 cells and brings them into proximity of bioengineered E. coli [CT104 (W3110 lsrFG- luxS- pCT6 + pET-DsRed)] reporter cells that exhibit a QS response after receiving autoinducer-2 (AI-2). By shortening the distance between WT and reporter cells (e.g., increasing local available AI-2 concentrations), the QS response signalling was amplified four-fold compared to that in native conditions without assembly. This study suggests potential applications in facilitating intercellular communication and modulating multicellular behaviours based on user-specified designs.
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Affiliation(s)
- Yongguang Guan
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, 20742, USA
| | - Chen-Yu Tsao
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, 20742, USA.,Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, 20742, USA
| | - David N Quan
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, 20742, USA.,Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, 20742, USA
| | - Ying Li
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, 20742, USA
| | - Lei Mei
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, 20742, USA
| | - Yingying Song
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, 20742, USA
| | - Boce Zhang
- Department of Biomedical and Nutritional Sciences, University of Massachusetts, Lowell, MA, 01854, USA
| | - Yi Liu
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, 20742, USA.,Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, 20742, USA
| | - Gregory F Payne
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, 20742, USA.,Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, 20742, USA
| | - William E Bentley
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, 20742, USA.,Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, 20742, USA
| | - Qin Wang
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, 20742, USA
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16
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Kadam R, Maas M, Rezwan K. Selective, Agglomerate-Free Separation of Bacteria Using Biofunctionalized, Magnetic Janus Nanoparticles. ACS APPLIED BIO MATERIALS 2019; 2:3520-3531. [DOI: 10.1021/acsabm.9b00415] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Reshma Kadam
- Advanced Ceramics, University of Bremen, Am Biologischen Garten 2, 28359 Bremen, Germany
| | - Michael Maas
- Advanced Ceramics, University of Bremen, Am Biologischen Garten 2, 28359 Bremen, Germany
- MAPEX Centre of Materials and Processes, University of Bremen, 28359 Bremen, Germany
| | - Kurosch Rezwan
- Advanced Ceramics, University of Bremen, Am Biologischen Garten 2, 28359 Bremen, Germany
- MAPEX Centre of Materials and Processes, University of Bremen, 28359 Bremen, Germany
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17
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Chircov C, Grumezescu AM, Holban AM. Magnetic Particles for Advanced Molecular Diagnosis. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2158. [PMID: 31284393 PMCID: PMC6651565 DOI: 10.3390/ma12132158] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 07/02/2019] [Accepted: 07/03/2019] [Indexed: 12/17/2022]
Abstract
Molecular diagnosis is the field that aims to develop nucleic-acid-based analytical methods for biological markers and gene expression assessments by combining laboratory medicine and molecular genetics. As it gradually becomes a clinical reality, molecular diagnosis could benefit from improvements resulting from thorough studies that could enhance the accuracy of these methods. The application of magnetic particles in molecular diagnosis tools has led to tremendous breakthroughs in terms of specificity, sensitivity, and discrimination in bioassays. Therefore, the aim of this review is to highlight the principles involved in the implementation of magnetic particles for sample preparation and targeted analyte isolation, purification, and extraction. Furthermore, the most recent advancements in the area of cancer and infectious disease diagnosis are presented, with an emphasis on screening and early stage detection.
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Affiliation(s)
- Cristina Chircov
- Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania
| | - Alexandru Mihai Grumezescu
- Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania.
| | - Alina Maria Holban
- Microbiology Immunology Department, Faculty of Biology, University of Bucharest, 050095 Bucharest, Romania
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18
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Li Z, Ma J, Ruan J, Zhuang X. Using Positively Charged Magnetic Nanoparticles to Capture Bacteria at Ultralow Concentration. NANOSCALE RESEARCH LETTERS 2019; 14:195. [PMID: 31165285 PMCID: PMC6548795 DOI: 10.1186/s11671-019-3005-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Accepted: 05/07/2019] [Indexed: 05/11/2023]
Abstract
Detecting bacteria at low concentrations without time-consuming culture processes would allow rapid diagnoses. Since electrostatic attraction exists between negatively charged bacterial cells and positively charged magnetic nanoparticles (NP+), capture of bacteria holds great promise towards achieving this goal. Here, we present a rapid and highly efficient approach to capture Escherichia coli, which was used as a model for gram-negative bacteria. Capture of E. coli at very low concentrations of 10 and 100 CFU/mL using NP+ is rapidly and efficiently achieved within 1 h. Moreover, the capture efficiency of NP+ was over 90% by analyzing the number of bacterial colonies on the plate. Optical and transmission electron microscopy confirmed the bacterial capture abilities of electrically charged nanoparticles (NPs). In contrast, negatively charged magnetic nanoparticles (NP-) did not show affinities towards E. coli. These results showed that bacterial cells, such as E. coli, carry a negative charge. Unlike a ligand-dependent capture system, our designed NP+ has potentials to capture a broad range of bacteria via electrostatic attractions.
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Affiliation(s)
- Zhiming Li
- Institue of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
- Department of Urology, the First Affiliated Hospital of Xiamen University, Xiamen, 361003 Fujian China
| | - Jinyuan Ma
- Department of Pharmacy, Shanghai Dermatology Hospital, Shanghai, 200443 China
| | - Jun Ruan
- College of Life Sciences, Central China Normal University, Wuhan, 430079 China
| | - Xuan Zhuang
- Department of Urology, the First Affiliated Hospital of Xiamen University, Xiamen, 361003 Fujian China
- Department of Clinical Medicine, Fujian Medical University, Fuzhou, 350005 Fujian Province China
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19
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Budimir M, Jijie R, Ye R, Barras A, Melinte S, Silhanek A, Markovic Z, Szunerits S, Boukherroub R. Efficient capture and photothermal ablation of planktonic bacteria and biofilms using reduced graphene oxide-polyethyleneimine flexible nanoheaters. J Mater Chem B 2019; 7:2771-2781. [PMID: 32255079 DOI: 10.1039/c8tb01676c] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Bacterial infections are one of the leading causes of disease worldwide. Conventional antibiotics are becoming less efficient, due to antibiotic-resistant bacterial strains. Therefore, the development of novel antibacterial materials and advanced treatment strategies are becoming increasingly important. In the present work, we developed a simple and efficient strategy for effective bacterial capture and their subsequent eradication through photothermal killing. The developed device consists of a flexible nanoheater, comprising a Kapton/Au nanoholes substrate, coated with reduced graphene oxide-polyethyleneimine (K/Au NH/rGO-PEI) thin films. The Au NH plasmonic structure was tailored to feature strong absorption in the near-infrared (NIR) region, where most biological matter has limited absorption, while PEI was investigated for its strong binding with bacteria through electrostatic interactions. The K/Au NH/rGO-PEI device was demonstrated to capture and eliminate effectively both planktonic Gram-positive Staphilococcus aureus (S. aureus) and Gram-negative Escherichia coli (E. coli) bacteria after 10 min of NIR (980 nm) irradiation and, to destroy and eradicate Staphilococcus epidermidis (S. epidermidis) biofilms after 30 min irradiation. The technique developed herein is simple and universal with potential applications for eradication of different micro-organisms.
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Affiliation(s)
- Milica Budimir
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, UMR 8520 - IEMN, F-59000 Lille, France.
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20
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Martínez-Matamoros D, Castro-García S, Balado M, Matamoros-Veloza A, Camargo-Valero MA, Cespedes O, Rodríguez J, Lemos ML, Jiménez C. Preparation of functionalized magnetic nanoparticles conjugated with feroxamine and their evaluation for pathogen detection. RSC Adv 2019; 9:13533-13542. [PMID: 35519600 PMCID: PMC9063908 DOI: 10.1039/c8ra10440a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 04/22/2019] [Indexed: 12/27/2022] Open
Abstract
Interaction of a conjugate between amino-functionalized silica magnetite and the siderophore feroxamine with Yersinia enterocolitica wild type.
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Affiliation(s)
- Diana Martínez-Matamoros
- Centro de Investigacións Científicas Avanzadas (CICA)
- Departamento de Química
- Facultade de Ciencias
- Universidade da Coruña
- 15071 A Coruña
| | - Socorro Castro-García
- Centro de Investigacións Científicas Avanzadas (CICA)
- Departamento de Química
- Facultade de Ciencias
- Universidade da Coruña
- 15071 A Coruña
| | - Miguel Balado
- Department of Microbiology and Parasitology
- Institute of Aquaculture
- Universidade de Santiago de Compostela
- Campus Sur
- Santiago de Compostela 15782
| | - Adriana Matamoros-Veloza
- Institute of Functional Surfaces
- School of Mechanical Engineering
- University of Leeds
- Leeds LS2 2JT
- UK
| | | | - Oscar Cespedes
- Faculty of Mathematics and Physical Sciences
- School of Physics and Astronomy
- University of Leeds
- Leeds LS2 9JT
- UK
| | - Jaime Rodríguez
- Centro de Investigacións Científicas Avanzadas (CICA)
- Departamento de Química
- Facultade de Ciencias
- Universidade da Coruña
- 15071 A Coruña
| | - Manuel L. Lemos
- Department of Microbiology and Parasitology
- Institute of Aquaculture
- Universidade de Santiago de Compostela
- Campus Sur
- Santiago de Compostela 15782
| | - Carlos Jiménez
- Centro de Investigacións Científicas Avanzadas (CICA)
- Departamento de Química
- Facultade de Ciencias
- Universidade da Coruña
- 15071 A Coruña
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21
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Halouane F, Jijie R, Meziane D, Li C, Singh SK, Bouckaert J, Jurazek J, Kurungot S, Barras A, Li M, Boukherroub R, Szunerits S. Selective isolation and eradication of E. coli associated with urinary tract infections using anti-fimbrial modified magnetic reduced graphene oxide nanoheaters. J Mater Chem B 2017; 5:8133-8142. [PMID: 32264652 DOI: 10.1039/c7tb01890h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The fast and efficient elimination of pathogenic bacteria from water, food or biological samples such as blood remains a challenging task. Magnetic isolation of bacteria from complex media holds particular promise for water disinfection and other biotechnological applications employing bacteria. When it comes to infectious diseases such as urinary tract infections, the selective removal of the pathogenic species in complex media such as human serum is also of importance. This issue can only be accomplished by adding pathogen specific targeting sites onto the magnetic nanostructures. In this work, we investigate the potential of 2-nitrodopamine modified magnetic particles anchored on reduced graphene oxide (rGO) nanocomposites for rapid capture and efficient elimination of E. coli associated with urinary tract infections (UTIs) from water and serum samples. An optimized magnetic nanocarrier achieves a 99.9% capture efficiency even at E. coli concentrations of 1 × 101 cfu mL-1 in 30 min. In addition, functionalization of the nanostructures with poly(ethylene glycol) modified pyrene units and anti-fimbrial E. coli antibodies allowed specific elimination of E. coli UTI89 from serum samples. Irradiation of the E. coli loaded nanocomposite with a near-infrared laser results in the total ablation of the captured pathogens. This method can be flexibly modified for any other pathogenic bacteria, depending on the antibodies used, and might be an interesting alternative material for a magnetic-based body fluid purification approach.
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Affiliation(s)
- Fatima Halouane
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, UMR 8520-IEMN, F-59000 Lille, France.
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22
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Fang W, Zhang H, Wang X, Wei W, Shen Y, Yu J, Liang J, Zheng J, Shen Y. Facile synthesis of tunable plasmonic silver core/magnetic Fe3O4 shell nanoparticles for rapid capture and effective photothermal ablation of bacterial pathogens. NEW J CHEM 2017. [DOI: 10.1039/c7nj02071f] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Multifunctional Ag@Fe3O4–PEI nanoparticles have been developed for simultaneously capturing and photothermal killing bacteria in contaminated source.
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Affiliation(s)
- Weijun Fang
- School of Basic Medical Sciences
- Anhui Medical University
- Hefei 230032
- P. R. China
- Biopharmaceutical Research Institute
| | - Hanyuan Zhang
- Department of Sports Medicine and Arthroscopic Surgery
- The First Affiliated Hospital of Anhui Medical University
- Hefei 230022
- P. R. China
| | - Xin Wang
- School of Basic Medical Sciences
- Anhui Medical University
- Hefei 230032
- P. R. China
| | - Wenmei Wei
- School of Basic Medical Sciences
- Anhui Medical University
- Hefei 230032
- P. R. China
| | - Yujun Shen
- School of Basic Medical Sciences
- Anhui Medical University
- Hefei 230032
- P. R. China
| | - Jishuang Yu
- School of Basic Medical Sciences
- Anhui Medical University
- Hefei 230032
- P. R. China
| | - Junxing Liang
- School of Basic Medical Sciences
- Anhui Medical University
- Hefei 230032
- P. R. China
| | - Jun Zheng
- Center of Modern Experimental Technology
- Anhui University
- Hefei 230601
- P. R. China
| | - Yuxian Shen
- School of Basic Medical Sciences
- Anhui Medical University
- Hefei 230032
- P. R. China
- Biopharmaceutical Research Institute
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