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Mal S, Chakraborty S, Mahapatra M, Pakeeraiah K, Das S, Paidesetty SK, Roy P. Tackling breast cancer with gold nanoparticles: twinning synthesis and particle engineering with efficacy. NANOSCALE ADVANCES 2024; 6:2766-2812. [PMID: 38817429 PMCID: PMC11134266 DOI: 10.1039/d3na00988b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 04/10/2024] [Indexed: 06/01/2024]
Abstract
The World Health Organization identifies breast cancer as the most prevalent cancer despite predominantly affecting women. Surgery, hormonal therapy, chemotherapy, and radiation therapy are the current treatment modalities. Site-directed nanotherapeutics, engineered with multidimensional functionality are now the frontrunners in breast cancer diagnosis and treatment. Gold nanoparticles with their unique colloidal, optical, quantum, magnetic, mechanical, and electrical properties have become the most valuable weapon in this arsenal. Their advantages include facile modulation of shape and size, a high degree of reproducibility and stability, biocompatibility, and ease of particle engineering to induce multifunctionality. Additionally, the surface plasmon oscillation and high atomic number of gold provide distinct advantages for tailor-made diagnosis, therapy or theranostic applications in breast cancer such as photothermal therapy, radiotherapy, molecular labeling, imaging, and sensing. Although pre-clinical and clinical data are promising for nano-dimensional gold, their clinical translation is hampered by toxicity signs in major organs like the liver, kidneys and spleen. This has instigated global scientific brainstorming to explore feasible particle synthesis and engineering techniques to simultaneously improve the efficacy and versatility and widen the safety window of gold nanoparticles. The present work marks the first study on gold nanoparticle design and maneuvering techniques, elucidating their impact on the pharmacodynamics character and providing a clear-cut scientific roadmap for their fast-track entry into clinical practice.
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Affiliation(s)
- Suvadeep Mal
- Medicinal Chemistry Research Laboratory, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed to be University) Campus-2, Ghatikia, Kalinga Nagar Bhubaneswar Odisha 751003 India
| | | | - Monalisa Mahapatra
- Medicinal Chemistry Research Laboratory, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed to be University) Campus-2, Ghatikia, Kalinga Nagar Bhubaneswar Odisha 751003 India
| | - Kakarla Pakeeraiah
- Medicinal Chemistry Research Laboratory, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed to be University) Campus-2, Ghatikia, Kalinga Nagar Bhubaneswar Odisha 751003 India
| | - Suvadra Das
- Basic Science and Humanities Department, University of Engineering and Management Action Area III, B/5, Newtown Kolkata West Bengal 700160 India
| | - Sudhir Kumar Paidesetty
- Medicinal Chemistry Research Laboratory, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed to be University) Campus-2, Ghatikia, Kalinga Nagar Bhubaneswar Odisha 751003 India
| | - Partha Roy
- GITAM School of Pharmacy, GITAM (Deemed to be University) Vishakhapatnam 530045 India
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Golsanamlu Z, Soleymani J, Gharekhani A, Jouyban A. In-situ preparation of norepinephrine-functionalized silver nanoparticles and application for colorimetric detection of tacrolimus in plasma samples. Heliyon 2023; 9:e18404. [PMID: 37576308 PMCID: PMC10412875 DOI: 10.1016/j.heliyon.2023.e18404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 07/11/2023] [Accepted: 07/17/2023] [Indexed: 08/15/2023] Open
Abstract
Tacrolimus (Tac) is a well-documented immunosuppressive agent for the prevention of graft-vs-host diseases in several types of organ transplants. The narrow therapeutic window and the individual-variable pharmacokinetics of Tac demonstrate the importance of regular therapeutic drug monitoring (TDM) as an imperative concept for its oral medication regimens. A simple, one-step, selective, and sensitive colorimetric platform is fabricated for the determination of Tac by surface modification of the silver nanoparticles (AgNPs) via norepinephrine (NE) molecules. The attachment of NE and Tac induces the aggregation of the AgNPs, which is observed by color distinction (yellow to brown) and a noteworthy shifting of the absorption peak in the visible region. The fabricated nanoprobe can detect Tac concentrations in plasma samples in two linear ranges from 2 ng/mL to 70 ng/mL and 70 ng/mL to 1000 ng/mL with R2 > 0.99. The limit of detection (LOD) was calculated as low as 0.1 ng/mL. The developed method was applied for the determination of Tac in patient's plasma samples under Tac medication therapy.
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Affiliation(s)
- Zahra Golsanamlu
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jafar Soleymani
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Afshin Gharekhani
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Clinical Pharmacy (Pharmacotherapy), Faculty of Pharmacy, Sina Hospital, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Abolghasem Jouyban
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
- Pharmaceutical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Li L, Zhang W, Chen H, Zhao Z, Wang M, Chen J. Visual and electrochemical determination of breast cancer marker CA15-3 based on etching of Au@Ag core/shell nanoparticles. INT J ELECTROCHEM SC 2023. [DOI: 10.1016/j.ijoes.2023.100123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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Mohammadpour-Haratbar A, Boraei SBA, Zare Y, Rhee KY, Park SJ. Graphene-Based Electrochemical Biosensors for Breast Cancer Detection. BIOSENSORS 2023; 13:bios13010080. [PMID: 36671915 PMCID: PMC9855997 DOI: 10.3390/bios13010080] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/21/2022] [Accepted: 12/28/2022] [Indexed: 06/04/2023]
Abstract
Breast cancer (BC) is the most common cancer in women, which is also the second most public cancer worldwide. When detected early, BC can be treated more easily and prevented from spreading beyond the breast. In recent years, various BC biosensor strategies have been studied, including optical, electrical, electrochemical, and mechanical biosensors. In particular, the high sensitivity and short detection time of electrochemical biosensors make them suitable for the recognition of BC biomarkers. Moreover, the sensitivity of the electrochemical biosensor can be increased by incorporating nanomaterials. In this respect, the outstanding mechanical and electrical performances of graphene have led to an increasingly intense study of graphene-based materials for BC electrochemical biosensors. Hence, the present review examines the latest advances in graphene-based electrochemical biosensors for BC biosensing. For each biosensor, the detection limit (LOD), linear range (LR), and diagnosis technique are analyzed. This is followed by a discussion of the prospects and current challenges, along with potential strategies for enhancing the performance of electrochemical biosensors.
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Affiliation(s)
- Ali Mohammadpour-Haratbar
- Biomaterials and Tissue Engineering Research Group, Department of Interdisciplinary Technologies, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran 1715424313, Iran
| | - Seyyed Behnam Abdollahi Boraei
- Biomaterials and Tissue Engineering Research Group, Department of Interdisciplinary Technologies, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran 1715424313, Iran
| | - Yasser Zare
- Biomaterials and Tissue Engineering Research Group, Department of Interdisciplinary Technologies, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran 1715424313, Iran
| | - Kyong Yop Rhee
- Department of Mechanical Engineering (BK21 Four), College of Engineering, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Soo-Jin Park
- Department of Chemistry, Inha University, Incheon 22212, Republic of Korea
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Nasrollahpour H, Khalilzadeh B, Hasanzadeh M, Rahbarghazi R, Estrela P, Naseri A, Tasoglu S, Sillanpää M. Nanotechnology‐based electrochemical biosensors for monitoring breast cancer biomarkers. Med Res Rev 2022; 43:464-569. [PMID: 36464910 DOI: 10.1002/med.21931] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 10/01/2022] [Accepted: 11/04/2022] [Indexed: 12/07/2022]
Abstract
Breast cancer is categorized as the most widespread cancer type among women globally. On-time diagnosis can decrease the mortality rate by making the right decision in the therapy procedure. These features lead to a reduction in medication time and socioeconomic burden. The current review article provides a comprehensive assessment for breast cancer diagnosis using nanomaterials and related technologies. Growing use of the nano/biotechnology domain in terms of electrochemical nanobiosensor designing was discussed in detail. In this regard, recent advances in nanomaterial applied for amplified biosensing methodologies were assessed for breast cancer diagnosis by focusing on the advantages and disadvantages of these approaches. We also monitored designing methods, advantages, and the necessity of suitable (nano) materials from a statistical standpoint. The main objective of this review is to classify the applicable biosensors based on breast cancer biomarkers. With numerous nano-sized platforms published for breast cancer diagnosis, this review tried to collect the most suitable methodologies for detecting biomarkers and certain breast cancer cell types.
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Affiliation(s)
- Hassan Nasrollahpour
- Department of Analytical Chemistry, Faculty of Chemistry University of Tabriz Tabriz Iran
| | - Balal Khalilzadeh
- Stem Cell Research Center Tabriz University of Medical Sciences Tabriz Iran
| | - Mohammad Hasanzadeh
- Pharmaceutical Analysis Research Center Tabriz University of Medical Sciences Tabriz Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center Tabriz University of Medical Sciences Tabriz Iran
- Department of Applied Cellular Sciences, Faculty of Advanced Medical Sciences Tabriz University of Medical Sciences Tabriz Iran
| | - Pedro Estrela
- Centre for Biosensors, Bioelectronics and Biodevices (C3Bio) and Department of Electronic and Electrical Engineering University of Bath Bath UK
| | - Abdolhossein Naseri
- Department of Analytical Chemistry, Faculty of Chemistry University of Tabriz Tabriz Iran
| | - Savas Tasoglu
- Koç University Translational Medicine Research Center (KUTTAM) Rumeli Feneri, Sarıyer Istanbul Turkey
| | - Mika Sillanpää
- Environmental Engineering and Management Research Group Ton Duc Thang University Ho Chi Minh City Vietnam
- Faculty of Environment and Labour Safety Ton Duc Thang University Ho Chi Minh City Vietnam
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Molaparast M, Eslampour P, Soleymani J, Shafiei-Irannejad V. Spectrofluorimetric Method for Monitoring Methotrexate in Patients' Plasma Samples and Cell Lysates Using Highly Fluorescent Carbon Dots. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2022; 21:e126918. [PMID: 36060916 PMCID: PMC9420217 DOI: 10.5812/ijpr-126918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 11/03/2021] [Accepted: 01/01/2022] [Indexed: 06/15/2023]
Abstract
For the first time, nitrogen, sulfur, phosphorus, and boron-doped carbon dots (N, S, P, B-codoped CDs) were synthesized through a hydrothermal reaction. The produced CDs were utilized to develop an optical sensor to determine methotrexate (MTX) in cell lysates and patients' plasma samples. Basically, in the presence of MTX, the fluorescence emission of the CD-based probe was quenched. Under optimum conditions, a good proportional relationship was obtained between the quenched fluorescence signal and MTX concentrations from 74.9 ng/mL to 99.9 µg/mL with a limit of detection of 74.9 ng/mL. The developed nanoprobe provided a wide linear range and high accuracy and was successfully utilized in the routine therapeutic drug monitoring of MTX in plasma samples. The obtained results proposed the developed nanoprobe for the on-time and specific detection of MTX in blood samples. As another application, N, S, P, B-codoped CDs were utilized for bioimaging MCF-7 cancer cells and could be proposed as efficient bioimaging agents for tumor cells.
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Affiliation(s)
- Morteza Molaparast
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran
- Food and Drug Safety Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Pooya Eslampour
- Department of Oncology, Imam Khomeini Hospital, Urmia University of Medical Sciences, Urmia, Iran
- Hematology, Immune Cell Therapy, and Stem Cells Transplantation Research Center, Clinical Research Institute, Urmia University of Medical Sciences, Urmia, Iran
| | - Jafar Soleymani
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vahid Shafiei-Irannejad
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran
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Mohammadpour-Haratbar A, Zare Y, Rhee KY. Electrochemical biosensors based on polymer nanocomposites for detecting breast cancer: Recent progress and future prospects. Adv Colloid Interface Sci 2022; 309:102795. [DOI: 10.1016/j.cis.2022.102795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 10/03/2022] [Accepted: 10/03/2022] [Indexed: 12/13/2022]
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An Innovative Sandwich Type Biosensor towards Sensitive and Selective Monitoring of 2-Arachidonoylglycerol in Human Plasma Samples Using P(β-CD)-AuNPs-DDT as Amplificant Agent: A New Immuno-Platform for the Recognition of Endocannabinoids in Real Samples. BIOSENSORS 2022; 12:bios12100791. [PMID: 36290931 PMCID: PMC9599568 DOI: 10.3390/bios12100791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 11/20/2022]
Abstract
In this work, 2-AG was successfully detected in human plasma samples using a new sandwich-type electrochemical immune device based on poly-β-cyclodextrin P(β-CD) functionalized with AuNPs-DDT and toluidine blue. The P(β-CD) ensured the bioactivity and stability of the immobilized 2-AG antibody by providing a broad surface for the efficient immobilization of the biotinylated antibody. To complete the top section of the immunosensor (reporter), an HRP-conjugated antibody of 2-AG (secondary antibody (Ab2)) was attached to the surface of a glassy carbon electrode (GCE) modified by P(β-CD), as well as a primarily biotinylated antibody (Ab1). The biosensor fabrication process was monitored using field-emission scanning electron microscope (FE-SEM) and EDS methods. Using the differential pulse voltammetry technique, the immunosensor was utilized for detection of 2-AG in real samples. The suggested interface increased the surface area, which allowed for the immobilization of a large quantity of anti-2-AG antibody while also improving biocompatibility, stability, and electrical conductivity. Finally, the suggested immunosensor’s limit of quantitation was determined to be 0.0078 ng/L, with a linear range of 0.0078 to 1.0 ng/L. The results showed that the suggested bioassay can be utilized for diagnosis of 2-AG in clinical samples as a unique and ultrasensitive electrochemical biodevice.
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Golsanamlou Z, Kholafazad-Kordasht H, Soleymani J, Jouyban A. Quantification of methotrexate in plasma samples using highly fluorescent nanoparticles. J Pharm Biomed Anal 2022; 214:114716. [PMID: 35390574 DOI: 10.1016/j.jpba.2022.114716] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 02/19/2022] [Accepted: 03/05/2022] [Indexed: 11/19/2022]
Abstract
A novel amine-functionalized silica carbon polymer dots (APTES-CPDs)-based sensor was developed for methotrexate (MTX) detection. APTES-CPDs core-shell structure was synthesized via a one-step hydrothermal process and were employed as an optical sensor for MTX determination due to quenching effect of MTX on the fluorescence intensity of CPDs. Under optimum conditions, the developed sensor detects MTX in plasma samples in the dual linear ranges of 10 ng/mL to 2.0 µg/mL and 2.0 µg/mL to 50 μg/mL with a low limit of detections (LLOD)) of 10 ng/mL and 2.0 µg/mL, respectively. The obtained results are demonstrated the accuracy of the designed nanoprobe which is as high as to be used for the MTX detection in the routine therapeutic drug monitoring. In addition, the established nanoprobe shows significant specificity towards MTX compared to the co-administered drugs. Other advantages of this nanoprobe are its simple approach, high selectivity and sensitivity for MTX determination in plasma media which can approve the applicability of this MTX nanosensor in real samples.
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Affiliation(s)
- Zahra Golsanamlou
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran; Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Jafar Soleymani
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Abolghasem Jouyban
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran; Faculty of pharmacy, Near East University, Mersin 10, 99138 Nicosia, North Cyprus, Turkey
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Pourakbari R, Yousefi M, Khalilzadeh B, Irani-nezhad MH, Khataee A, Aghebati-Maleki L, Soleimanian A, Kamrani A, Chakari-Khiavi F, Abolhasan R, Motallebnezhad M, Jadidi-Niaragh F, Yousefi B, Kafil HS, Hojjat-Farsangi M, Rashidi MR. Early stage evaluation of colon cancer using tungsten disulfide quantum dots and bacteriophage nano-biocomposite as an efficient electrochemical platform. Cancer Nanotechnol 2022. [DOI: 10.1186/s12645-022-00113-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Recently, biosensors have become popular analytical tools for small analytes due to their high sensitivity and wide analytical range. In the present work, development of a novel biosensing method based on tungsten disulfide quantum dots (WS2 QDs)-Au for rapidly and selectively detecting c-Met protein is introduced. As a proof of concept, M13 bacteriophage-based biosensors were used for the electrochemical detection of c-Met protein as a colon cancer biomarker.
Method
The M13 bacteriophage (virus), as the biorecognition element, was immobilized on glassy carbon electrodes which were modified by WS2 QDs-functionalized gold nanoparticles. The stepwise presence of the WS2 QDs, gold nanoparticles, and immobilized phage on glassy carbon electrodes were confirmed by scanning electron microscope (SEM) and square wave voltammetry (SWV) technique.
Results
The designed biosensor was applied to measure the amount of c-Met protein in standard solutions, and consequently the desirable detection limit of 1 pg was obtained. Finally, as a proof of concept, the developed platform was used for the evaluation of c-Met protein in serum samples of colon cancer-suffering patients and the results were compared with the results of the common Elisa kit.
Conclusions
As an interesting part of this study, some concentrations of the c-Met protein in colon cancer serum samples which could not be determined by Elisa, were easily analyzed by the developed bioassay system. The developed bioassay system has great potential to application in biomedical laboratories.
Graphical Abstract
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Jalili R, Chenaghlou S, Khataee A, Khalilzadeh B, Rashidi MR. An Electrochemiluminescence Biosensor for the Detection of Alzheimer's Tau Protein Based on Gold Nanostar Decorated Carbon Nitride Nanosheets. Molecules 2022; 27:431. [PMID: 35056745 PMCID: PMC8779933 DOI: 10.3390/molecules27020431] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/04/2022] [Accepted: 01/07/2022] [Indexed: 12/24/2022] Open
Abstract
Human Tau protein is the most reliable biomarker for the prediction of Alzheimer's disease (AD). However, the assay to detect low concentrations of tau protein in serum is a great challenge for the early diagnosis of AD. This paper reports an electrochemiluminescence (ECL) immunosensor for Tau protein in serum samples. Gold nanostars (AuNSs) decorated on carbon nitride nanosheets (AuNS@g-CN nanostructure) show highly strong and stable ECL activity compared to pristine CN nanosheets due to the electrocatalytic and surface plasmon effects of AuNSs. As a result of the strong electromagnetic field at branches, AuNSs showed a better ECL enhancement effect than their spherical counterpart. For the fabrication of a specific immunosensor, immobilized AuNSs were functionalized with a monoclonal antibody specific for Tau protein. In the presence of Tau protein, the ECL intensity of the immunosensor decreased considerably. Under the optimal conditions, this ECL based immunosensor exhibits a dynamic linear range from 0.1 to 100 ng mL-1 with a low limit of detection of 0.034 ng mL-1. The LOD is less than the Tau level in human serum; thus, this study provides a useful method for the determination of Tau. The fabricated ECL immunosensor was successfully applied to the detection of Tau, the biomarker in serum samples. Therefore, the present approach is very promising for application in diagnosing AD within the early stages of the disease.
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Affiliation(s)
- Roghayeh Jalili
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 51666-16471, Iran or (R.J.); (S.C.)
| | - Salimeh Chenaghlou
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 51666-16471, Iran or (R.J.); (S.C.)
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 51666-16471, Iran or (R.J.); (S.C.)
- Department of Environmental Engineering, Gebze Technical University, Gebze 41400, Turkey
- Department of Material Science and Physical Chemistry of Materials, South Ural State University, 454080 Chelyabinsk, Russia
| | - Balal Khalilzadeh
- Stem Cell Research Center (SCRC), Tabriz University of Medical Sciences, Tabriz 51666-14711, Iran;
| | - Mohammad-Reza Rashidi
- Stem Cell Research Center (SCRC), Tabriz University of Medical Sciences, Tabriz 51666-14711, Iran;
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Nasrollahpour H, Naseri A, Rashidi MR, Khalilzadeh B. Application of green synthesized WO 3-poly glutamic acid nanobiocomposite for early stage biosensing of breast cancer using electrochemical approach. Sci Rep 2021; 11:23994. [PMID: 34907220 PMCID: PMC8671486 DOI: 10.1038/s41598-021-03209-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 11/29/2021] [Indexed: 11/09/2022] Open
Abstract
Biopolymer films have drawn growing demand for their application in the point of care domain owing to their biocompatibility, eco-friendly, and eligibility for in vivo analyses. However, their poor conductivity restricts their sensitivity in diagnostics. For high-quality electrochemical biosensor monitoring, two vital factors to be greatly paid attention are the effective merge of amplification modifiers with transducing surface and the superior linking across the recognition interface. Here, we introduce an enzyme-free electrochemical biosensor based on electrosynthesized biocompatible WO3/poly glutamic acid nano-biocomposites to address the hardships specific to the analysis of circulating proteins clinical samples. In addition to its green synthesis route, the poor tendency of both components of the prepared nano-biocomposite to amine groups makes it excellent working in untreated biological samples with high contents of proteins. Several electrochemical and morphological investigations (SEM, EDX, and dot mapping) were fulfilled to gain a reliable and trustful standpoint of the framework. By using this nanobiosensor, the concentration of HER-2 was detectable as low as 1 fg mL-1 with a wide linear response between 1 ng mL-1 and 1 fg mL-1. Meanwhile, the protocol depicted ideal specificity, stability, and reproducibility for the detection of HER-2 protein in untreated serum samples of breast cancer patients.
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Affiliation(s)
- Hassan Nasrollahpour
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, PO Box 51644-14766, Tabriz, Iran
| | - Abdolhossein Naseri
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, PO Box 51644-14766, Tabriz, Iran.
| | - Mohammad-Reza Rashidi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Balal Khalilzadeh
- Stem Cell Research Center, Tabriz University of Medical Sciences, 51664-14766, Tabriz, Iran.
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Golsanamlou Z, Mahmoudpour M, Soleymani J, Jouyban A. Applications of Advanced Materials for Non-Enzymatic Glucose Monitoring: From Invasive to the Wearable Device. Crit Rev Anal Chem 2021; 53:1116-1131. [PMID: 34894901 DOI: 10.1080/10408347.2021.2008227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
Diabetes mellitus (DM) is a global health problem leading to many complications and disabilities in life adjusting activities and even dead. Monitoring glucose levels is a key factor in diagnosis and management of DM. Conventional glucose sensors consisted of immobilized enzymes, are so susceptible to environmental conditions. In this way, nonenzymatic biosensors have attracted extensive attentions in many clinical diagnostics applications. To date, the finger pricking test is a common enzyme-based glucometer that is an invasive and inconvenient and may lead to infections in the injection sites. So, working on the possibility of cutaneous or subcutaneous insertion of devices as a noninvasive or minimally-invasive systems for continuous glucose controlling approaches through human biofluids (blood, perspiration, tears, saliva, etc.) have stimulated growing interest. This review summarizes recent nonenzymatic and noninvasive biofluids glucose monitoring systems which are highly resilience and stretchable to continuously adapt to body movements during common physical activity. Sensors are based on their constituent materials including carbon-based, metal nanoparticles, polymer, and hydrogel systems are classified for electrochemical, and optical glucose detection. Finally, we address the drawbacks and challenges of enzyme-free sensors which are aroused sustaining research passion to be used in point-of-care medical diagnostics applications.
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Affiliation(s)
- Zahra Golsanamlou
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mansour Mahmoudpour
- Food and Drug Safety Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jafar Soleymani
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Abolghasem Jouyban
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Faculty of Pharmacy, Near East University, Nicosia, Turkey
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14
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Glycoprotein-based bioimaging of HeLa cancer cells by folate receptor and folate decorated graphene quantum dots. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106732] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Saadati A, Hassanpour S, Hasanzadeh M. Lab-on-fruit skin and lab-on-leaf towards recognition of trifluralin using Ag-citrate/GQDs nanocomposite stabilized on the flexible substrate: A new platform for the electroanalysis of herbicides using direct writing of nano-inks and pen-on paper technology. Heliyon 2020; 6:e05779. [PMID: 33376825 PMCID: PMC7758526 DOI: 10.1016/j.heliyon.2020.e05779] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/11/2020] [Accepted: 12/15/2020] [Indexed: 12/04/2022] Open
Abstract
Trifluralin is herbicide of the dinitroanilines group in which NO2 molecules are attached to the benzene ring at diverse positions. Trifluralin affects endocrine function and is listed as an endocrine disrupter in the European Union list. Therefore, its determination is so important in health science. In this study, an easy, sensitive and environmentally friendly method has been developed for determination of trifluralin based on its electrochemical oxidation on a three-electrode system designed on the surface of agricultural products using Ag-citrate/GQDs (graphene quantum dots) nano-ink. The sensor was prepared by direct writing on the surface of the samples. The designed electrodes were dried after 24 h at room temperature and used for trifluralin detection. Under optimized experimental conditions, the Ag-citrate/GQDs nano-ink based sensor was exhibited good sensitivity and specificity for trifluralin detection. The obtained linear range using the cyclic voltammetric (CV) technique is between 0.008 to 1 mM and low limit of quantification (LLOQ) was 0.008 mM. Also, the obtained linear range using differential pulse voltammetric (DPV) and square wave voltammetric (SWV) techniques is 0.005–0.04 mM with LLOQ of 0.005 mM. For further validation of the applicability of the proposed method, it was also used for detection of trifluralin on the surface of apple skin.
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Affiliation(s)
- Arezoo Saadati
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Food and Drug Safety Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Soodabeh Hassanpour
- Department of Analytical Chemistry, Faculty of Science, Palacky University Olomouc, 17. Listopadu 12, 77146 Olomouc, Czech Republic
| | - Mohammad Hasanzadeh
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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16
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Non-invasive bioassay of Cytokeratin Fragment 21.1 (Cyfra 21.1) protein in human saliva samples using immunoreaction method: An efficient platform for early-stage diagnosis of oral cancer based on biomedicine. Biomed Pharmacother 2020; 131:110671. [DOI: 10.1016/j.biopha.2020.110671] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/17/2020] [Accepted: 08/20/2020] [Indexed: 12/28/2022] Open
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17
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A novel immunosensor for the monitoring of PSA using binding of biotinylated antibody to the prostate specific antigen based on nano-ink modified flexible paper substrate: efficient method for diagnosis of cancer using biosensing technology. Heliyon 2020; 6:e04327. [PMID: 32671252 PMCID: PMC7347657 DOI: 10.1016/j.heliyon.2020.e04327] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 05/27/2020] [Accepted: 06/24/2020] [Indexed: 02/04/2023] Open
Abstract
Prostate cancer is the most significant reason for deaths in men, outside of lung cancer. The clinical examination of cancer proteins or biomarkers is extremely significant in early examination and monitoring of recurrence of disease after treatment. Biomarkers have expanded great clinical significance owing to their extensive spectra in the identification, elimination, early diagnosis and cure of cancer. In this work, novel, ultrasensitive sandwich-type portable bio device based on citrate-capped silver nanoparticles (Citrate-AgNPs) modified graphene quantum dots (GQDs) nano ink for detection of Prostate specific antigen (PSA) was fabricated. Functionalized cysteamine with gold nanoparticles (Cys-AuNPs) was also utilized to amplify the signal. It provides a good and high external area for the immobilization biotinylated antibody of PSA in the large amount. For the first time, citrate-AgNPs-GQDs nano ink was directly written on the cellulose paper surface (ivory sheet and photographic paper) and modified by Cys-AuNPs. So, final structure of the immunodevices was completed after including of Ab1 and PSA (antigen). The immunosensors were used for the recognition of PSA by using DPVs (differential pulse voltammetry) technique. The obtained low limit of quantification (LLOQ) of the first immunodevice (ivory sheet/Citrate AgNPs-GQDs nano-ink/CysA-Au NPs/Ab1/BSA/PSA/Ab2) was 0.07 μg/L and the linear range for the calibration plot was from 0.07 to 60 μg/L. Also, the achieved LLOQ of the second immunodevice (photographic paper/Citrate AgNPs-GQDs nano-ink/Cys-Au NPs/Ab1/BSA/PSA/Ab2) was 0.05 μg/L with the linear range of 10 to 0.05 μg/L. It is noteworthy that, proposed immunoassay was effectively utilized to the monitoring of PSA glycoprotein in unprocessed human plasma sample. Obtained results show that the constructed immunosensor is able to apply as portable bio device for the clinical analysis of PSA in human plasma samples.
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18
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Sardaremelli S, Razmi H, Hasanzadeh M, Shadjou N. A novel bioassay for the monitoring of hydrogen peroxide in human plasma samples based on binding of horseradish peroxidase-conjugated prostate specific antigen to poly (toluidine blue) as imprinted polymer receptor. Int J Biol Macromol 2020; 145:311-324. [DOI: 10.1016/j.ijbiomac.2019.12.195] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/19/2019] [Accepted: 12/21/2019] [Indexed: 12/18/2022]
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19
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Jeong S, Park MJ, Song W, Kim HS. Current immunoassay methods and their applications to clinically used biomarkers of breast cancer. Clin Biochem 2020; 78:43-57. [PMID: 32007438 DOI: 10.1016/j.clinbiochem.2020.01.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 12/13/2019] [Accepted: 01/29/2020] [Indexed: 12/21/2022]
Abstract
Breast cancer is the leading cause of cancer-related mortality worldwide, with a higher incidence in developed countries. The biomarkers for breast cancer such as estrogen receptor, progesterone receptor, human epidermal growth factor receptor 2, CA (cancer antigen) 15-3, CA 27.29, and carcinoembryonic antigen have been recommended for use in the laboratory based on the guidelines of American and European societies. Immunoassays have been frequently and consistently used to detect these clinically established biomarkers of breast cancer. Despite the higher accessibility of serum biomarkers, including CA 15-3, CA 27.29, and CEA, compared to tissue markers, variations in immunoassays affect their standardization and clinical utility. When reviewing the immunoassays used to detect these serum markers, we found that the most frequently used immunoassay was enzyme-linked immunosorbent assay, followed by electrochemiluminescent immunoassay, and then chemiluminescence immunoassay for CA 15-3 and CEA. Meanwhile, the chemiluminescence immunoassay was the most common technique for CA27.29. The electrochemiluminescent immunoassay and monoclonal fluorometric assay have become the preferred methods in 2010-2019 compared to 2000-2009. Analytical and clinical performance factors such as sensitivity, specificity, detection limit, hazard risk to laboratory personnel, speed, and economic feasibility influenced these changes in user preference. When using the immunoassays, there should be a comprehensive understanding of the principles, advantages, vulnerability, and precautions for interpretation. In the future, a combination of immunological biomarkers and genetic platforms will benefit patients with breast cancer by facilitating prognosis prediction and guiding therapeutic intervention.
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Affiliation(s)
- Seri Jeong
- Department of Laboratory Medicine, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, 1 Singil-ro, Yeongdeungpo-gu, Seoul 07440, South Korea.
| | - Min-Jeong Park
- Department of Laboratory Medicine, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, 1 Singil-ro, Yeongdeungpo-gu, Seoul 07440, South Korea.
| | - Wonkeun Song
- Department of Laboratory Medicine, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, 1 Singil-ro, Yeongdeungpo-gu, Seoul 07440, South Korea.
| | - Hyon-Suk Kim
- Department of Laboratory Medicine, Severance Hospital, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea.
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20
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Mobed A, Hasanzadeh M, Shadjou N, Hassanpour S, Saadati A, Agazadeh M. Immobilization of ssDNA on the surface of silver nanoparticles-graphene quantum dots modified by gold nanoparticles towards biosensing of microorganism. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104286] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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21
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Suntornsuk W, Suntornsuk L. Recent applications of paper‐based point‐of‐care devices for biomarker detection. Electrophoresis 2019; 41:287-305. [DOI: 10.1002/elps.201900258] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 09/30/2019] [Accepted: 10/05/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Worapot Suntornsuk
- Department of Microbiology, Faculty of ScienceKing Mongkut's University of Technology Thonburi Bangkok Thailand
| | - Leena Suntornsuk
- Department of Pharmaceutical ChemistryFaculty of PharmacyMahidol University Bangkok Thailand
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22
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Bahavarnia F, Saadati A, Hassanpour S, Hasanzadeh M, Shadjou N, Hassanzadeh A. Paper based immunosensing of ovarian cancer tumor protein CA 125 using novel nano-ink: A new platform for efficient diagnosis of cancer and biomedical analysis using microfluidic paper-based analytical devices (μPAD). Int J Biol Macromol 2019; 138:744-754. [PMID: 31326512 DOI: 10.1016/j.ijbiomac.2019.07.109] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 07/04/2019] [Accepted: 07/17/2019] [Indexed: 01/28/2023]
Abstract
Ovarian cancer is the first and most important cause of malignancy death in women. Mucin 16 or MUC16 protein also known as carcinoma antigen 125 (CA 125) is the most commonly used glycoprotein for early stage diagnosis of ovarian cancer. In this work, a novel paper-based bio-device through hand writing of Ag/RGO (silver nanoparticles/reduced graphene oxide) nano-ink on the flexible paper substrate using pen-on-paper technology was developed. The prepared interface was used to the recognition of CA 125 protein in human biofluid. For this purpose, Ag/rGO nano-ink was synthesized by deposition of Ag nanoparticles onto graphene oxide sheets and the reduction of graphene oxide to rGO simultaneously. Conductivity and resistance of conductive lines were studied after drawing on photographic paper. Subsequently, to prepare a new and unique immuno-device, paper electrode modified by cysteamine caped gold nanoparticles (CysA/Au NPs) using electrochemical techniques. CysA is bonded by sulfur atoms with Au (CysA/Au NPs), and from the amine group with hydroxyl and carboxyl groups of Ag/RGO nano-ink deposited on the surface of paper-based electrodes (CysA/Au NPs/Ag-rGO). Then, anti-CA 125 antibody was immobilized on the electrode surface through Au NPs and CA 125 positively charged amine groups interaction. Atomic force microscopy, Transmission electron microscopy, Field emission scanning electron microscopy, and dynamic light scattering, were performed to identify the engineered immunosensor. Using chronoamperometry technique and under the optimized conditions, the low limit of quantitation (LLOQ) for the proposed immunoassay was recorded as 0.78 U/ml, which this evaluation was performed at highly linear range of 0.78-400 U/ml. The high sensitivity of the electrochemical immunosensor device is indicative of the ability of this immuno-device to detect early stages ovarian cancer.
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Affiliation(s)
- Farnas Bahavarnia
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Arezoo Saadati
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Soodabeh Hassanpour
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Hasanzadeh
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz 51664, Iran.
| | - Nasrin Shadjou
- Nanotechnology Research Center, Urmia University, Urmia, Iran
| | - Ahmad Hassanzadeh
- Department of Processing, Helmholtz-Institute Freiberg for Resource Technology, Helmholtz-Zentrum Dresden-Rossendorf, Chemnitzer Str. 40, 09599 Freiberg, Germany
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23
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Sensitive detection of Trifluralin in untreated human plasma samples using reduced graphene oxide modified by polyethylene imine and silver nanoparticles: A new platform on the analysis of pesticides and chemical injuries. Microchem J 2019. [DOI: 10.1016/j.microc.2019.03.092] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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24
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A novel paper based immunoassay of breast cancer specific carbohydrate (CA 15.3) using silver nanoparticles-reduced graphene oxide nano-ink technology: A new platform to construction of microfluidic paper-based analytical devices (μPADs) towards biomedical analysis. Microchem J 2019. [DOI: 10.1016/j.microc.2019.01.018] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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25
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Jafari M, Hasanzadeh M, Solhi E, Hassanpour S, Shadjou N, Mokhtarzadeh A, Jouyban A, Mahboob S. Ultrasensitive bioassay of epitope of Mucin-16 protein (CA 125) in human plasma samples using a novel immunoassay based on silver conductive nano-ink: A new platform in early stage diagnosis of ovarian cancer and efficient management. Int J Biol Macromol 2019; 126:1255-1265. [DOI: 10.1016/j.ijbiomac.2019.01.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 01/02/2019] [Accepted: 01/02/2019] [Indexed: 01/12/2023]
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26
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Ultrasensitive immunoassay of breast cancer type 1 susceptibility protein (BRCA1) using poly (dopamine-beta cyclodextrine-Cetyl trimethylammonium bromide) doped with silver nanoparticles: A new platform in early stage diagnosis of breast cancer and efficient management. Microchem J 2019. [DOI: 10.1016/j.microc.2018.11.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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27
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Han X, Xu K, Taratula O, Farsad K. Applications of nanoparticles in biomedical imaging. NANOSCALE 2019; 11:799-819. [PMID: 30603750 PMCID: PMC8112886 DOI: 10.1039/c8nr07769j] [Citation(s) in RCA: 229] [Impact Index Per Article: 45.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
An urgent need for early detection and diagnosis of diseases continuously pushes the advancements of imaging modalities and contrast agents. Current challenges remain for fast and detailed imaging of tissue microstructures and lesion characterization that could be achieved via development of nontoxic contrast agents with longer circulation time. Nanoparticle technology offers this possibility. Here, we review nanoparticle-based contrast agents employed in most common biomedical imaging modalities, including fluorescence imaging, MRI, CT, US, PET and SPECT, addressing their structure related features, advantages and limitations. Furthermore, their applications in each imaging modality are also reviewed using commonly studied examples. Future research will investigate multifunctional nanoplatforms to address safety, efficacy and theranostic capabilities. Nanoparticles as imaging contrast agents have promise to greatly benefit clinical practice.
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Affiliation(s)
- Xiangjun Han
- Department of Radiology, First Hospital of China Medical University, Shenyang, Liaoning, 110001 P. R. China.
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28
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Cross-linked chitosan/thiolated graphene quantum dots as a biocompatible polysaccharide towards aptamer immobilization. Int J Biol Macromol 2018; 123:1091-1105. [PMID: 30458193 DOI: 10.1016/j.ijbiomac.2018.11.139] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 11/09/2018] [Accepted: 11/14/2018] [Indexed: 01/11/2023]
Abstract
Chitosan has a number of commercial and possible biomedical uses. Chitosan as a polysaccharide is a bioactive polymer with a variety of applications due to its functional properties such as antibacterial activity, non-toxicity, ease of modification, and biodegradability. In this work, cross-linked chitosan/thiolated graphene quantum dot as a biocompatible polysaccharide was modified by gold nanoparticle and used for immobilization of ractopamine (RAC) aptamer. A highly specific DNA-aptamer (5'-SH-AAAAAGTGCGGGC-3'), selected to RAC was immobilized onto thiolated graphene quantum dots (GQDs)-chitosan (CS) nanocomposite modified by gold nanostructures (Au NSs) and used for quantification of RAC. Different shapes of gold nanostructures with various sizes from zero-dimensional nanoparticles to spherical structures were prepared by one-step template-assistant green electrodeposition method. Fully electrochemical methodology was used to prepare a new transducer on a glassy carbon surface which provided a high surface area to immobilize a high amount of the aptamer. Therefore, a label free electrochemical (EC) apta-assay for ultrasensitive detection of RAC was developed. A special immobilization media consisting of Au NSs/GQDs-CS/Cysteamine (CysA) was utilized to improve conductivity and performance of the biosensor. The RAC aptamer was attached on the Au NSs of the composite membrane via AuS bond. The fabrication process of the EC aptamer based assay was characterized by some electrochemical techniques. The peak currents obtained by differential pulse voltammetry decreased linearly with the increasing of RAC concentrations and the apta-assay responds approximately over a wide dynamic range of RAC concentration from 0.0044 fM to 19.55 μM. The low limit of quantification was 0.0044 fM.
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