1
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Gu X, Shu T, Deng W, Shen C, Wu Y. An X-ray activatable gold nanorod encapsulated liposome delivery system for mitochondria-targeted photodynamic therapy (PDT). J Mater Chem B 2023; 11:4539-4547. [PMID: 37161717 DOI: 10.1039/d3tb00608e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
In this work, we developed a mitochondria-targeted nanomaterial for neoadjuvant X-ray-triggered photodynamic therapy of rectal cancer. Herein, we designed a biodegradable liposome incorporating a photosensitizer, verteporfin, to generate X-ray-induced reactive oxygen species, gold nanorods as radiation enhancers, and triphenylphosphonium as the mitochondrial targeting moiety. The average size of the nanocarrier was about 150 nm. Due to the synergetic effect between X-ray and a combination of verteporfin and gold nanorods, as well as precise site-targeted TPP-modified liposomal nanocarriers, our nanoconjugates generated sufficient cytotoxic singlet oxygen within the mitochondria under X-ray irradiation, triggering the loss of membrane potential and mitochondria-related apoptosis of cancer cells.
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Affiliation(s)
- Xuefan Gu
- College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Xi'an, Shaanxi, 710065, P. R. China
- ARC Centre of Excellence for Nanoscale Biophotonics, Graduate School of Biomedical Engineering, University of New South, Wales Kensington, 2052 NSW, Australia
- Faculty of Science and Engineering, Macquarie University, Sydney, 2109 NSW, Australia
| | - Tiantian Shu
- College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Xi'an, Shaanxi, 710065, P. R. China
| | - Wei Deng
- School of Biomedical Engineering, University of Technology Sydney, Sydney, Australia
| | - Chao Shen
- Faculty of Science and Engineering, Macquarie University, Sydney, 2109 NSW, Australia
| | - Youshen Wu
- Department of Chemistry, School of Science, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China.
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2
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Zarif B, Shabbir S, Rahman A, Sherazi TA, Shahid R, Noor T, Imran M. Milk phospholipids and buttermilk based composite nanosystems for enhanced stability and bioaccessibility of β-carotene. Int Dairy J 2023. [DOI: 10.1016/j.idairyj.2023.105668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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3
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Near-infrared surface plasmon resonance sensor with a graphene-gold surface architecture for ultra-sensitive biodetection. Anal Chim Acta 2022; 1205:339692. [DOI: 10.1016/j.aca.2022.339692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 03/03/2022] [Accepted: 03/05/2022] [Indexed: 11/23/2022]
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4
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A review of optical methods for ultrasensitive detection and characterization of nanoparticles in liquid media with a focus on the wide field surface plasmon microscopy. Anal Chim Acta 2022; 1204:339633. [DOI: 10.1016/j.aca.2022.339633] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 12/27/2022]
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5
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Das S, Agarwal DK, Mandal B, Rao VR, Kundu T. Detection of the Chilli Leaf Curl Virus Using an Attenuated Total Reflection-Mediated Localized Surface-Plasmon-Resonance-Based Optical Platform. ACS OMEGA 2021; 6:17413-17423. [PMID: 34278127 PMCID: PMC8280655 DOI: 10.1021/acsomega.1c01702] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/09/2021] [Indexed: 05/16/2023]
Abstract
The development of a nanoparticle-based optical platform has been presented as a biosensor for detecting target-specific plant virus DNA. The binding dynamics of gold nanoparticles has been studied on the amine-functionalized surface by the attenuated total reflection (ATR)-based evanescent wave absorption method monitoring the localized surface plasmon resonance (LSPR). The developed surface was established as a refractive index sensor by monitoring the LSPR absorption peak of gold nanoparticles. This nanoparticle-immobilized surface was explored to establish as a biosensing platform with target-specific immunoglobulin (IgG) antibody-antigen interaction. The IgG concentration-dependent variation of absorbance was correlated with the refractive index change. After successfully establishing this ATR configuration as an LSPR-based biosensor, the single-stranded DNA of the chilli leaf curl virus was detected using its complementary DNA sequence as a receptor. The limit of detection of this sensor was determined to be 1.0 μg/mL for this target viral DNA. This ATR absorption technique has enormous potential as an LSPR based nano-biosensor for the detection of other begomoviruses.
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Affiliation(s)
- Sonatan Das
- Centre
for Research in Nanotechnology and Science, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Dilip Kumar Agarwal
- Department
of Physics, Indian Institute of Technology
Bombay, Mumbai 400076, India
| | - Bikash Mandal
- Advanced
Centre for Plant Virology, Indian Agricultural
Research Institute, Pusa, New Delhi, Delhi 110012, India
| | - V. Ramgopal Rao
- Centre
for Research in Nanotechnology and Science, Indian Institute of Technology Bombay, Mumbai 400076, India
- Department
of Electrical Engineering, Indian Institute
of Technology Bombay, Mumbai 400076, India
| | - Tapanendu Kundu
- Centre
for Research in Nanotechnology and Science, Indian Institute of Technology Bombay, Mumbai 400076, India
- Department
of Physics, Indian Institute of Technology
Bombay, Mumbai 400076, India
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6
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Nanoparticle Determination in Water by LED-Excited Surface Plasmon Resonance Imaging. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9070175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The increasing popularity of nanoparticles in many applications has led to the fact that these persistent materials pollute our environment and threaten our health. An online sensor system for monitoring the presence of nanoparticles in fresh water would be highly desired. We propose a label-free sensor based on SPR imaging. The sensitivity was enhanced by a factor of about 100 by improving the detector by using a high-resolution camera. This revealed that the light source also needed to be improved by using LED excitation instead of a laser light source. As a receptor, different self-assembled monolayers have been screened. It can be seen that the nanoparticle receptor interaction is of a complex nature. The best system when taking sensitivity as well as reversibility into account is given by a dodecanethiol monolayer on the gold sensor surface. Lanthanide-doped nanoparticles, 29 nm in diameter and with a similar refractive index to the most common silica nanoparticles were detected in water down to 1.5 µg mL−1. The sensor can be fully regenerated within one hour without the need for any washing buffer. This sensing concept is expected to be easily adapted for the detection of nanoparticles of different size, shape, and composition, and upon miniaturization, suitable for long-term applications to monitor the quality of water.
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7
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Belkilani M, Shokouhi M, Farre C, Chevalier Y, Minot S, Bessueille F, Abdelghani A, Jaffrezic-Renault N, Chaix C. Surface Plasmon Resonance Monitoring of Mono-Rhamnolipid Interaction with Phospholipid-Based Liposomes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:7975-7985. [PMID: 34170134 DOI: 10.1021/acs.langmuir.1c00846] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The interactions of mono-rhamnolipids (mono-RLs) with model membranes were investigated through a biomimetic approach using phospholipid-based liposomes immobilized on a gold substrate and also by the multiparametric surface plasmon resonance (MP-SPR) technique. Biotinylated liposomes were bound onto an SPR gold chip surface coated with a streptavidin layer. The resulting MP-SPR signal proved the efficient binding of the liposomes. The thickness of the liposome layer calculated by modeling the MP-SPR signal was about 80 nm, which matched the average diameter of the liposomes. The mono-RL binding to the film of the phospholipid liposomes was monitored by SPR and the morphological changes of the liposome layer were assessed by modeling the SPR signal. We demonstrated the capacity of the MP-SPR technique to characterize the different steps of the liposome architecture evolution, i.e., from a monolayer of phospholipid liposomes to a single phospholipid bilayer induced by the interaction with mono-RLs. Further washing treatment with Triton X-100 detergent left a monolayer of phospholipid on the surface. As a possible practical application, our method based on a biomimetic membrane coupled to an SPR measurement proved to be a robust and sensitive analytical tool for the detection of mono-RLs with a limit of detection of 2 μg mL-1.
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Affiliation(s)
- Meryem Belkilani
- CNRS, Claude Bernard Lyon 1 University, Institute of Analytical Sciences, University of Lyon, 5 rue de la Doua, F-69100 Villeurbanne, France
- ENSIT, University of Tunis, Avenue Taha Hussein, Montfleury, 1008 Tunis, Tunisia
- INSAT, Research Unit of Nanobiotechnology and Valorisation of Medicinal Plants, University of Carthage, 1080 Charguia Cedex, Tunisia
| | - Maryam Shokouhi
- Department of chemistry, University of Isfahan, Isfahan 81746-73441, Iran
| | - Carole Farre
- CNRS, Claude Bernard Lyon 1 University, Institute of Analytical Sciences, University of Lyon, 5 rue de la Doua, F-69100 Villeurbanne, France
| | - Yves Chevalier
- CNRS, Claude Bernard Lyon1 University, University of Lyon, LAGEPP, 43 Bd 11 Novembre, F-69622 Villeurbanne, France
| | - Sylvain Minot
- CNRS, Claude Bernard Lyon 1 University, Institute of Analytical Sciences, University of Lyon, 5 rue de la Doua, F-69100 Villeurbanne, France
| | - François Bessueille
- CNRS, Claude Bernard Lyon 1 University, Institute of Analytical Sciences, University of Lyon, 5 rue de la Doua, F-69100 Villeurbanne, France
| | - Adnane Abdelghani
- INSAT, Research Unit of Nanobiotechnology and Valorisation of Medicinal Plants, University of Carthage, 1080 Charguia Cedex, Tunisia
| | - Nicole Jaffrezic-Renault
- CNRS, Claude Bernard Lyon 1 University, Institute of Analytical Sciences, University of Lyon, 5 rue de la Doua, F-69100 Villeurbanne, France
| | - Carole Chaix
- CNRS, Claude Bernard Lyon 1 University, Institute of Analytical Sciences, University of Lyon, 5 rue de la Doua, F-69100 Villeurbanne, France
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8
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Yagati AK, Behrent A, Beck S, Rink S, Goepferich AM, Min J, Lee MH, Baeumner AJ. Laser-induced graphene interdigitated electrodes for label-free or nanolabel-enhanced highly sensitive capacitive aptamer-based biosensors. Biosens Bioelectron 2020; 164:112272. [PMID: 32553348 DOI: 10.1016/j.bios.2020.112272] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 04/07/2020] [Accepted: 05/02/2020] [Indexed: 12/21/2022]
Abstract
Highly porous laser-induced graphene (LIG) is easily generated in complex electrode configurations such as interdigitated electrodes (IDEs). Here, we demonstrate that their superior capacitive response at low frequencies can be exploited in affinity biosensors using thrombin aptamers as model biorecognition elements. Of specific interest was the effect of electrode surface area on capacitance detection, and the comparison between a label-free format and enhancement strategies afforded by carboxy group bearing polymeric nanoparticles or liposomes. Electrochemical impedance spectroscopy (EIS) was used to investigate the LIG performance and optimize the biosensor design. Interestingly, the label-free strategy performed extremely well and additional labels decreased the limit of detection or increased the sensitivity only minimally. It is assumed that the highly porous nature of the LIG structures dominates the capacitive response so that labels removed from the surface have only limited influence Also, while slight performance changes can be observed for smaller vs. larger electrode structures, the performance of a LIG IDE is reasonably independent of its size. In the end, a dynamic range of 5 orders of magnitude was obtained (0.01 nM-1000 nM) with a limit of detection as low as 0.12 pM. When measured in serum, this increased to 1.3 pM. The good reproducibility (relative standard deviation (RSD), 4.90%) and repeatability (RSD, 2.59%) and good long-term stability (>7 weeks at 4 °C) prove that a LIG-based capacitance sensor is an excellent choice for affinity-based biosensor. The ease-of-production, the simplicity of modification and the superior performance even in a label-free format indicate that LIG-based biosensors should be considered in point-of-care diagnostics in the future.
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Affiliation(s)
- Ajay Kumar Yagati
- Institute of Analytical Chemistry, Chemo-and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, 31, 93053, Regensburg, Germany; School of Integrative Engineering, Chung-Ang University, Heukseok-dong, Dongjak-Gu, 06974, Seoul, Republic of Korea
| | - Arne Behrent
- Institute of Analytical Chemistry, Chemo-and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, 31, 93053, Regensburg, Germany
| | - Sebastian Beck
- Department of Pharmaceutical Technology, Faculty of Chemistry and Pharmacy, University of Regensburg, 93040, Regensburg, Germany
| | - Simone Rink
- Institute of Analytical Chemistry, Chemo-and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, 31, 93053, Regensburg, Germany
| | - Achim M Goepferich
- Department of Pharmaceutical Technology, Faculty of Chemistry and Pharmacy, University of Regensburg, 93040, Regensburg, Germany
| | - Junhong Min
- School of Integrative Engineering, Chung-Ang University, Heukseok-dong, Dongjak-Gu, 06974, Seoul, Republic of Korea.
| | - Min-Ho Lee
- School of Integrative Engineering, Chung-Ang University, Heukseok-dong, Dongjak-Gu, 06974, Seoul, Republic of Korea.
| | - Antje J Baeumner
- Institute of Analytical Chemistry, Chemo-and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, 31, 93053, Regensburg, Germany.
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9
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Akkilic N, Liljeblad M, Blaho S, Hölttä M, Höök F, Geschwindner S. Avidity-Based Affinity Enhancement Using Nanoliposome-Amplified SPR Sensing Enables Low Picomolar Detection of Biologically Active Neuregulin 1. ACS Sens 2019; 4:3166-3174. [PMID: 31724395 DOI: 10.1021/acssensors.9b01392] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Biomarkers serve as indicators of disease progression or therapeutic response of an medical intervention, and means for enabling a reliable and sensitive biomarker detection are therefore vital in clinical settings. Most biosensor assays require high-affinity interactions in combination with an enzyme or fluorescent tag to enable detection and frequently employ extensive washing procedures prior to signal readout. Attempts to overcome this limitation by using natural biological partners tend to be demanding, because their very low affinity is frequently not compatible with the need of reaching low limits of detection (LODs), especially for circulating biomarkers that possess short half-lives. To address these challenges, we developed a label-free surface plasmon resonance (SPR) platform for the detection of neuregulin 1 (NRG1) using ErbB4-modified liposomes offering both signal amplification and affinity enhancement via functional multivalent interactions. Through the functional avidity interaction between NRG1 and ErbB4, an LOD of 3.5 picomolar was reached, which is about 60-fold higher than traditional SPR and miniaturized immunoassays. The biosensor displays also an 8-fold higher sensitivity when compared with a single-molecule immunoassay employing the natural binding partner rather than a high-affinity antibody as one of the interaction partners. In fact, the liposome-induced avidity between NRG1 and ErbB4 offered an LOD that was comparable to that obtained using a high-affinity antibody and enabled detection of NRG1 in plasma with a LOD of 36 pM. Employing the liposome-enhanced platform in conjunction with a low-affinity biomarker receptor thus enables the assessment of the functional state of the biomarker at competitive LODs and eliminates the need for high-affinity antibodies.
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Affiliation(s)
| | | | | | | | - Fredrik Höök
- Department of Applied Physics, Division of Biological Physics, Chalmers University of Technology, Gothenburg 412 96, Sweden
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10
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Ren R, Cai G, Yu Z, Zeng Y, Tang D. Metal-Polydopamine Framework: An Innovative Signal-Generation Tag for Colorimetric Immunoassay. Anal Chem 2018; 90:11099-11105. [DOI: 10.1021/acs.analchem.8b03538] [Citation(s) in RCA: 200] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Rongrong Ren
- Key Laboratory of Analytical Science for Food Safety and Biology (MOE and Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350116, People’s Republic of China
| | - Guoneng Cai
- Key Laboratory of Analytical Science for Food Safety and Biology (MOE and Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350116, People’s Republic of China
| | - Zhenzhong Yu
- Key Laboratory of Analytical Science for Food Safety and Biology (MOE and Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350116, People’s Republic of China
| | - Yongyi Zeng
- Liver Disease Center, The First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, People’s Republic of China
| | - Dianping Tang
- Key Laboratory of Analytical Science for Food Safety and Biology (MOE and Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350116, People’s Republic of China
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11
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Gao T, Mu C, Shi H, Shi L, Mao X, Li G. Embedding Capture-Magneto-Catalytic Activity into a Nanocatalyst for the Determination of Lipid Kinase. ACS APPLIED MATERIALS & INTERFACES 2018; 10:59-65. [PMID: 29231711 DOI: 10.1021/acsami.7b10857] [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] [Indexed: 06/07/2023]
Abstract
The use of emerging nanocatalysts to investigate the activity of biocatalysts (protein enzymes, catalytic RNAs, etc.) is increasingly receiving attention from material, analytic, and biomedical scientists. Here, we have first fabricated a three-in-one nanocatalyst, the nitrilotriacetic acid (NTA)-modified magnetite nanoparticle (NTA-MNP), to develop an integrated magneto-colorimetric (MagColor) assay for lipid kinase activity so as to solve the inherent problems in a lipid kinase assay. On the basis of three integrated functions of the NTA-MNPs (capture, magnetic separation, and peroxidase activity), the catalytic activity of lipid kinase is directly converted to colorimetric signals. Therefore, the assay procedure is significantly simplified such that in one step the visual detection of lipid kinase activity is possible. Moreover, the whole system responds sensitively in the case that NTA-MNPs recognize a few numbers of the reaction sites, which efficiently initiates the chromogenic reaction of a large amount of chromogens; thus, the detection limit decreases to 6.5 ± 5.8 fM, about three orders of magnitude lower as compared to that of enzyme-linked immune-sorbent assay. So, by embedding desired functions into nanocatalysts, the assay for biocatalysts becomes easy, which may promisingly provide useful tools for biomedical and clinical research in the future.
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Affiliation(s)
| | - Chaoli Mu
- State Key Laboratory of Pharmaceutical Biotechnology and Collaborative Innovation Center of Chemistry for Life Sciences, Department of Biochemistry, Nanjing University , Nanjing 210093, P. R. China
| | - Hai Shi
- State Key Laboratory of Pharmaceutical Biotechnology and Collaborative Innovation Center of Chemistry for Life Sciences, Department of Biochemistry, Nanjing University , Nanjing 210093, P. R. China
| | - Liu Shi
- State Key Laboratory of Pharmaceutical Biotechnology and Collaborative Innovation Center of Chemistry for Life Sciences, Department of Biochemistry, Nanjing University , Nanjing 210093, P. R. China
| | | | - Genxi Li
- State Key Laboratory of Pharmaceutical Biotechnology and Collaborative Innovation Center of Chemistry for Life Sciences, Department of Biochemistry, Nanjing University , Nanjing 210093, P. R. China
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12
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Hinman SS, McKeating KS, Cheng Q. Surface Plasmon Resonance: Material and Interface Design for Universal Accessibility. Anal Chem 2018; 90:19-39. [PMID: 29053253 PMCID: PMC6041476 DOI: 10.1021/acs.analchem.7b04251] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Samuel S. Hinman
- Environmental Toxicology, University of California–Riverside, Riverside, California 92521, United States
| | - Kristy S. McKeating
- Department of Chemistry, University of California–Riverside, Riverside, California 92521, United States
| | - Quan Cheng
- Environmental Toxicology, University of California–Riverside, Riverside, California 92521, United States
- Department of Chemistry, University of California–Riverside, Riverside, California 92521, United States
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13
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Surface Plasmon Resonance Immunosensor for the Detection of Campylobacter jejuni. CHEMOSENSORS 2017. [DOI: 10.3390/chemosensors5020016] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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14
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Valkonen S, van der Pol E, Böing A, Yuana Y, Yliperttula M, Nieuwland R, Laitinen S, Siljander P. Biological reference materials for extracellular vesicle studies. Eur J Pharm Sci 2017; 98:4-16. [DOI: 10.1016/j.ejps.2016.09.008] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 09/06/2016] [Accepted: 09/06/2016] [Indexed: 01/05/2023]
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15
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Abstract
Clinical and environmental analyses frequently necessitate rapid, simple, and inexpensive point-of-care or field tests. These semiquantitative tests may be later followed up by confirmatory laboratory-based assays, but provide an initial scenario assessment important for resource mobilization and threat confinement. Lateral-flow assays (LFAs) and dip-stick assays, which are typically antibody-based and yield a visually detectable signal, provide an assay format suiting these applications extremely well. Signal generation is commonly obtained through the use of colloidal gold or latex beads, which yield a colored band either directly proportional or inversely proportional to the concentration of the analyte of interest. Here, dye-encapsulating liposomes as a highly visible alternative are discussed. The semiquantitative LFA biosensor described in this chapter relies on a sandwich immunoassay for the detection of myoglobin in whole blood. After an acute myocardial infarction (AMI) event, several cardiac markers are released into the blood, the most common of which are troponin, creatine kinase MB, C-reactive protein, and myoglobin. Due to its early release, myoglobin has value as an indicator of a recent heart attack amongst conditions which present with similar symptoms and its lack of elevation can effectively rule out a heart attack (Brogan et al., Ann Emerg Med 24:665-671, 1994). The assay described within relies on sandwich complex formation between a membrane immobilized capture monoclonal antibody against myoglobin, a detector biotinylated monoclonal antibody against a different epitope on myoglobin, and streptavidin-conjugated visible dye (sulforhodamine B)-encapsulating liposomes to allow for signal generation.
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Affiliation(s)
- Katie A Edwards
- Department of Biological and Environmental Engineering, Cornell University, 140 Riley-Robb Hall, Ithaca, NY, 14853, USA
| | - Ricki Korff
- Department of Biological and Environmental Engineering, Cornell University, 140 Riley-Robb Hall, Ithaca, NY, 14853, USA
| | - Antje J Baeumner
- Department of Biological and Environmental Engineering, Cornell University, 140 Riley-Robb Hall, Ithaca, NY, 14853, USA.
- Institute for Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93040, Regensburg, Germany.
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16
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Liu C, Wang X, Xu J, Chen Y. Chemical Strategy to Stepwise Amplification of Signals in Surface Plasmon Resonance Imaging Detection of Saccharides and Glycoconjugates. Anal Chem 2016; 88:10011-10018. [DOI: 10.1021/acs.analchem.6b02184] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Chanjuan Liu
- Key
Laboratory of Analytical Chemistry for Living Biosystems, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao Wang
- Key
Laboratory of Analytical Chemistry for Living Biosystems, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiying Xu
- Key
Laboratory of Analytical Chemistry for Living Biosystems, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yi Chen
- Key
Laboratory of Analytical Chemistry for Living Biosystems, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing National Laboratory for Molecular Science, Beijing 100190, China
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17
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Seo S, Zhou X, Liu GL. Sensitivity Tuning through Additive Heterogeneous Plasmon Coupling between 3D Assembled Plasmonic Nanoparticle and Nanocup Arrays. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:3453-62. [PMID: 27206214 DOI: 10.1002/smll.201600451] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 03/29/2016] [Indexed: 05/14/2023]
Abstract
Plasmonic substrates have fixed sensitivity once the geometry of the structure is defined. In order to improve the sensitivity, significant research effort has been focused on designing new plasmonic structures, which involves high fabrication costs; however, a method is reported for improving sensitivity not by redesigning the structure but by simply assembling plasmonic nanoparticles (NPs) near the evanescent field of the underlying 3D plasmonic nanostructure. Here, a nanoscale Lycurgus cup array (nanoLCA) is employed as a base colorimetric plasmonic substrate and an assembly template. Compared to the nanoLCA, the NP assembled nanoLCA (NP-nanoLCA) exhibits much higher sensitivity for both bulk refractive index sensing and biotin-streptavidin binding detection. The limit of detection of the NP-nanoLCA is at least ten times smaller when detecting biotin-streptavidin conjugation. The numerical calculations confirm the importance of the additive plasmon coupling between the NPs and the nanoLCA for a denser and stronger electric field in the same 3D volumetric space. Tunable sensitivity is accomplished by controlling the number of NPs in each nanocup, or the number density of the hot spots. This simple yet scalable and cost-effective method of using additive heterogeneous plasmon coupling effects will benefit various chemical, medical, and environmental plasmon-based sensors.
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Affiliation(s)
- Sujin Seo
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Xiangfei Zhou
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Gang Logan Liu
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
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18
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Fenzl C, Hirsch T, Baeumner AJ. Nanomaterials as versatile tools for signal amplification in (bio)analytical applications. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.10.018] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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19
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Fenzl C, Genslein C, Domonkos C, Edwards KA, Hirsch T, Baeumner AJ. Investigating non-specific binding to chemically engineered sensor surfaces using liposomes as models. Analyst 2016; 141:5265-73. [DOI: 10.1039/c6an00820h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Clever surface engineering strategies lead to the minimization of non-specific binding of liposomes to sensor substrates.
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Affiliation(s)
- C. Fenzl
- Institute of Analytical Chemistry
- Chemo- and Biosensors
- University of Regensburg
- 93053 Regensburg
- Germany
| | - C. Genslein
- Institute of Analytical Chemistry
- Chemo- and Biosensors
- University of Regensburg
- 93053 Regensburg
- Germany
| | - C. Domonkos
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- Budapest
- Hungary
| | - K. A. Edwards
- Department of Biological and Environmental Engineering
- Cornell University
- Ithaca
- USA
| | - T. Hirsch
- Institute of Analytical Chemistry
- Chemo- and Biosensors
- University of Regensburg
- 93053 Regensburg
- Germany
| | - A. J. Baeumner
- Institute of Analytical Chemistry
- Chemo- and Biosensors
- University of Regensburg
- 93053 Regensburg
- Germany
| |
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