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Kazemzadeh-Beneh H, Safarnejad MR, Norouzi P, Samsampour D, Alavi SM, Shaterreza D. Development of label-free electrochemical OMP-DNA probe biosensor as a highly sensitive system to detect of citrus huanglongbing. Sci Rep 2024; 14:12183. [PMID: 38806617 PMCID: PMC11133464 DOI: 10.1038/s41598-024-63112-w] [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: 02/01/2024] [Accepted: 05/24/2024] [Indexed: 05/30/2024] Open
Abstract
The fabrication of the first label-free electrochemical DNA probe biosensor for highly sensitive detection of Candidatus Liberibacter asiaticus (CLas), as the causal agent of citrus huanglongbing disease, is conducted here. An OMP probe was designed based on the hybridization with its target-specific sequence in the outer membrane protein (OMP) gene of CLas. The characterization of the steps of biosensor fabrication and hybridization process between the immobilized OMP-DNA probe and the target ssDNA oligonucleotides (OMP-complementary and three mismatches OMP or OMP-mutation) was monitored using cyclic voltammetry and electrochemical impedance spectroscopy based on increasing or decreasing in the electron transfer in [Fe (CN)6]3-/4- on the modified gold electrode surface. The biosensor sensitivity indicated that the peak currents were linear over ranges from 20 to 100 nM for OMP-complementary with the detection limit of 0.026 nM (S/N = 3). The absence of any cross-interference with other biological DNA sequences confirmed a high selectivity of fabricated biosensor. Likewise, it showed good specificity in discriminating the mutation oligonucleotides from complementary target DNAs. The functional performance of optimized biosensor was achieved via the hybridization of OMP-DNA probe with extracted DNA from citrus plant infected with CLas. Therefore, fabricated biosensor indicates promise for sensitivity and early detection of citrus huanglongbing disease.
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Affiliation(s)
- Hashem Kazemzadeh-Beneh
- Division of Biotechnology & Plant Molecular Genetic, Department of Horticulture Science, University of Hormozgan, Bandar Abbas, Iran
| | - Mohammad Reza Safarnejad
- Department of Plant Viruses, Agricultural Research Education and Extension Organization, Iranian Research Institute of Plant Protection, P.O. Box 1452-19395, Tehran, Iran.
| | - Parviz Norouzi
- Faculty of Chemistry, Center of Excellence in Electrochemistry, University of Tehran, Tehran, Iran
| | - Davood Samsampour
- Division of Biotechnology & Plant Molecular Genetic, Department of Horticulture Science, University of Hormozgan, Bandar Abbas, Iran
| | - Seyed Mehdi Alavi
- National Institute for Genetic Engineering and Biotechnology, Tehran, Iran
| | - Davood Shaterreza
- Faculty of Chemistry, Center of Excellence in Electrochemistry, University of Tehran, Tehran, Iran
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2
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Lavecchia di Tocco F, Botti V, Cannistraro S, Bizzarri AR. Detection of miR-155 Using Peptide Nucleic Acid at Physiological-like Conditions by Surface Plasmon Resonance and Bio-Field Effect Transistor. BIOSENSORS 2024; 14:79. [PMID: 38391998 PMCID: PMC10887097 DOI: 10.3390/bios14020079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/21/2024] [Accepted: 01/30/2024] [Indexed: 02/24/2024]
Abstract
MicroRNAs are small ribonucleotides that act as key gene regulators. Their altered expression is often associated with the onset and progression of several human diseases, including cancer. Given their potential use as biomarkers, there is a need to find detection methods for microRNAs suitable for use in clinical setting. Field-effect-transistor-based biosensors (bioFETs) appear to be valid tools to detect microRNAs, since they may reliably quantitate the specific binding between the immobilized probe and free target in solution through an easily detectable electrical signal. We have investigated the detection of human microRNA 155 (miR-155) using an innovative capturing probe constituted by a synthetic peptide nucleic acid (PNA), which has the advantage to form a duplex even at ionic strengths approaching the physiological conditions. With the aim to develop an optimized BioFET setup, the interaction kinetics between miR-155 and the chosen PNA was preliminarily investigated by using surface plasmon resonance (SPR). By exploiting both these results and our custom-made bioFET system, we were able to attain a low-cost, real-time, label-free and highly specific detection of miR-155 in the nano-molar range.
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Affiliation(s)
| | | | | | - Anna Rita Bizzarri
- Biophysics and Nanoscience Centre, DEB, Università della Tuscia, Largo dell’Università, 01100 Viterbo, Italy; (F.L.d.T.); (V.B.); (S.C.)
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3
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Tahmasebi P, Farokhi S, Ahmadi G, Roushani M. Electrochemical impedance biosensor based on Y chromosome-specific sequences for fetal sex determination. Mikrochim Acta 2023; 190:483. [PMID: 38006412 DOI: 10.1007/s00604-023-06061-x] [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: 06/12/2023] [Accepted: 10/19/2023] [Indexed: 11/27/2023]
Abstract
A new electrochemical biosensor based on the sequence of chromosome Y (SRY) has been introduced to determine the gender of the fetus. At first, the DNA probe was designed based on the SRY gene sequence on chromosome Y. Then, a suitable functional group was added to the DNA probe, and it has been immobilized on the surface of the electrode modified with a nanocomposite containing Cu(OH)2 @N-C n-boxes. This substrate causes more DNA probes to connect to the electrode surface by increasing the effective surface area. The presence of the SRY sequence in the DNA sample extracted from blood was detected by the electrochemical signal of the bio-sensor. After optimizing the parameters, the fabricated genosensor showed linear responses in the two concentration ranges containing 0.5 fM to 50 pM and 50 pM to 500 nM. The limit of detection (LOD) for the proposed method was 0.16 fM. The proposed genosensor has been successfully used to determine the gender of the fetus using cell-free fetal DNA (cffDNA) in the blood plasma of several pregnant mothers. This method has advantages such as being simple, portable, accurate, and non-invasive for early determination of the gender of the fetus and early diagnosis of X-linked genetic disorders.
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Affiliation(s)
- Parisa Tahmasebi
- Department of Biology, Faculty of Science, Ilam University, Ilam, Iran.
| | - Somayeh Farokhi
- Department of Chemistry, Faculty of Sciences, Ilam University, Ilam, Iran
| | - Gelavizh Ahmadi
- Department of Biology, Faculty of Science, Ilam University, Ilam, Iran
| | - Mahmoud Roushani
- Department of Chemistry, Faculty of Sciences, Ilam University, Ilam, Iran.
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4
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Botti V, Lavecchia di Tocco F, Cannistraro S, Bizzarri AR. Hybridization Kinetics of miR-155 on Gold Surfaces as Investigated by Surface Plasmon Resonance and Atomic Force Spectroscopy. ACS OMEGA 2023; 8:38941-38949. [PMID: 37901511 PMCID: PMC10601050 DOI: 10.1021/acsomega.3c03318] [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: 05/12/2023] [Accepted: 08/15/2023] [Indexed: 10/31/2023]
Abstract
miRNAs are short noncoding RNA single strands, with a crucial role in several biological processes. miRNAs are dysregulated in several human diseases, and their detection is an important goal for diagnosis and screening. Innovative biosensors for miRNAs are commonly based on the hybridization process between a miRNA and its corresponding complementary strand (or suitable aptamers) immobilized onto an electrode surface forming a duplex. A detailed description of the hybridization kinetics in working conditions deserves a great deal of interest for the optimization of the biosensing process. Surface plasmon resonance (SPR) and atomic force spectroscopy (AFS) were applied to investigate the hybridization process between miR-155, a multifunctional miRNA that constitutes an important marker overexpressed in several diseases, and its complementary strand (antimiR-155), immobilized on the gold-coated surface of a commercial electrode. Under well-adjusted pH, ionic strength, surface coverage, and concentration, we found that miR-155 has a high affinity for antimiR-155 with kinetics well described by the 1:1 Langmuir model. Both techniques provided an association rate of about 104 M-1 s-1, while a dissociation rate of 10-5 and 10-4 s-1 was assessed by SPR and AFS, respectively. These results allowed us to establish optimized measurement running times for applications in biosensing. An analysis of AFS data also led us to evaluate the binding free energy for the duplex, which was found to be close to that of free molecules in solution. These results could guide in the implementation of fine-tuned working conditions of a biosensor for detecting miRNAs based on correspondent complementary strands.
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Affiliation(s)
- Valentina Botti
- Biophysics and Nanoscience Centre,
DEB, Università della Tuscia, Largo dell’Università, 01100 Viterbo, Italy
| | | | - Salvatore Cannistraro
- Biophysics and Nanoscience Centre,
DEB, Università della Tuscia, Largo dell’Università, 01100 Viterbo, Italy
| | - Anna Rita Bizzarri
- Biophysics and Nanoscience Centre,
DEB, Università della Tuscia, Largo dell’Università, 01100 Viterbo, Italy
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Abdul Rashid JI, Yusof NA, Abdullah J, Shomiad Shueb RH. Strategies in the optimization of DNA hybridization conditions and its role in electrochemical detection of dengue virus (DENV) using response surface methodology (RSM). RSC Adv 2023; 13:18748-18759. [PMID: 37362605 PMCID: PMC10286818 DOI: 10.1039/d3ra00216k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 04/28/2023] [Indexed: 06/28/2023] Open
Abstract
In recent years, limited research has been conducted on enhancing DNA hybridization-based biosensor approaches using statistical models. This study explores the application of response surface methodology (RSM) to improve the performance of a DNA hybridization biosensor for dengue virus (DENV) detection. The biosensor is based on silicon nanowires decorated with gold nanoparticles (SiNWs/AuNPs) and utilizes methylene blue as a redox indicator. The DNA hybridization process between the immobilized DNA probe and the target DENV gene was monitored using differential pulse voltammetry (DPV) based on the reduction of methylene blue. Fourier-transform infrared spectroscopy (FTIR) and electrochemical impedance spectroscopy (EIS) were employed to confirm successful DNA hybridization events on the modified screen-printed gold electrode (SPGE) surface. Several parameters, including pH buffer, NaCl concentration, temperature, and hybridization time, were simultaneously optimized, with NaCl concentration having the most significant impact on DNA hybridization events. This study enhances the understanding of the role of each parameter in influencing DNA hybridization detection in electrochemical biosensors. The optimized biosensor demonstrated the ability to detect complementary oligonucleotide and amplified DENV gene concentrations as low as 0.0891 ng µL-1 (10 pM) and 2.8 ng µL-1, respectively. The developed biosensor shows promise for rapid clinical diagnosis of dengue virus infection.
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Affiliation(s)
- Jahwarhar Izuan Abdul Rashid
- Department of Chemistry and Biology, Centre for Defence Foundation Studies, National Defence University of Malaysia Sungai Besi Camp 57000 Kuala Lumpur Malaysia
| | - Nor Azah Yusof
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia Serdang Selangor 43400 Malaysia
| | - Jaafar Abdullah
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia Serdang Selangor 43400 Malaysia
| | - Rafidah Hanim Shomiad Shueb
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia 16150 Kubang Kerian Kelantan Malaysia
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Lee H, Lee S, Park C, Yeom M, Lim JW, Vu TTH, Kim E, Song D, Haam S. Rapid Visible Detection of African Swine Fever Virus Using Hybridization Chain Reaction-Sensitized Magnetic Nanoclusters and Affinity Chromatography. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2207117. [PMID: 36960666 DOI: 10.1002/smll.202207117] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/09/2023] [Indexed: 06/18/2023]
Abstract
African swine fever virus (ASFV) is a severe and persistent threat to the global swine industry. As there are no vaccines against ASFV, there is an immense need to develop easy-to-use, cost-effective, and rapid point-of-care (POC) diagnostic platforms to detect and prevent ASFV outbreaks. Here, a novel POC diagnostic system based on affinity column chromatography for the optical detection of ASFV is presented. This system employs an on-particle hairpin chain reaction to sensitize magnetic nanoclusters with long DNA strands in a target-selective manner, which is subsequently fed into a column chromatography device to produce quantitatively readable and colorimetric signals. The detection approach does not require expensive analytical apparatus or immobile instrumentation. The system can detect five genes constituting the ASFV whole genome with a detection limit of ≈19.8 pm in swine serum within 30 min at laboratory room temperature. With an additional pre-amplification step using polymerase chain reaction (PCR), the assay is successfully applied to detect the presence of ASFV in 30 suspected swine samples with 100% sensitivity and specificity, similar to quantitative PCR. Thus, this simple, inexpensive, portable, robust, and customizable platform for the early detection of ASFV can facilitate the timely surveillance and implementation of control measures.
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Affiliation(s)
- Hyo Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Sojeong Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Chaewon Park
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Minjoo Yeom
- Department of Veterinary Medicine Virology Laboratory, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jong-Woo Lim
- Department of Veterinary Medicine Virology Laboratory, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - Thi Thu Hang Vu
- Department of Preclinical Science, College of Pharmacy, Korea University Sejong Campus, Sejong City, 30019, Republic of Korea
| | - Eunjung Kim
- Division of Bioengineering, Incheon National University, Incheon, 22012, Republic of Korea
- Department of Bioengineering & Nano-Bioengineering, Research Center for Bio Materials and Process Development, Incheon National University, Incheon, 22012, Republic of Korea
| | - Daesub Song
- Department of Veterinary Medicine Virology Laboratory, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - Seungjoo Haam
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 03722, Republic of Korea
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7
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Zhang H, Yang S, Zeng J, Li X, Chuai R. A Genosensor Based on the Modification of a Microcantilever: A Review. MICROMACHINES 2023; 14:427. [PMID: 36838127 PMCID: PMC9959632 DOI: 10.3390/mi14020427] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/28/2022] [Accepted: 01/06/2023] [Indexed: 06/18/2023]
Abstract
When the free end of a microcantilever is modified by a genetic probe, this sensor can be used for a wider range of applications, such as for chemical analysis, biological testing, pharmaceutical screening, and environmental monitoring. In this paper, to clarify the preparation and detection process of a microcantilever sensor with genetic probe modification, the core procedures, such as probe immobilization, complementary hybridization, and signal extraction and processing, are combined and compared. Then, to reveal the microcantilever's detection mechanism and analysis, the influencing factors of testing results, the theoretical research, including the deflection principle, the establishment and verification of a detection model, as well as environmental influencing factors are summarized. Next, to demonstrate the application results of the genetic-probe-modified sensors, based on the classification of detection targets, the application status of other substances except nucleic acid, virus, bacteria and cells is not introduced. Finally, by enumerating the application results of a genetic-probe-modified microcantilever combined with a microfluidic chip, the future development direction of this technology is surveyed. It is hoped that this review will contribute to the future design of a genetic-probe-modified microcantilever, with further exploration of the sensitive mechanism, optimization of the design and processing methods, expansion of the application fields, and promotion of practical application.
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Affiliation(s)
- He Zhang
- Correspondence: ; Tel.: +86-024-2549-6401
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8
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Hashem A, Hossain MAM, Marlinda AR, Mamun MA, Simarani K, Johan MR. Rapid and sensitive detection of box turtles using an electrochemical DNA biosensor based on a gold/graphene nanocomposite. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2022; 13:1458-1472. [PMID: 36570614 PMCID: PMC9749552 DOI: 10.3762/bjnano.13.120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 11/16/2022] [Indexed: 06/17/2023]
Abstract
The Southeast Asian box turtle, Cuora amboinensis, is an ecologically important endangered species which needs an onsite monitoring device to protect it from extinction. An electrochemical DNA biosensor was developed to detect the C. amboinensis mitochondrial cytochrome b gene based on an in silico designed probe using bioinformatics tools, and it was also validated in wet-lab experiments. As a detection platform, a screen-printed carbon electrode (SPCE) enhanced with a nanocomposite containing gold nanoparticles and graphene was used. The morphology of the nanoparticles was analysed by field-emission scanning electron microscopy and structural characteristics were analysed by using energy-dispersive X-ray, UV-vis, and Fourier-transform infrared spectroscopy. The electrochemical characteristics of the modified electrodes were studied by cyclic voltammetry, differential pulse voltammetry (DPV), and electrochemical impedance spectroscopy. The thiol-modified synthetic DNA probe was immobilised on modified SPCEs to facilitate hybridisation with the reverse complementary DNA. The turtle DNA was distinguished based on hybridisation-induced electrochemical change in the presence of methylene blue compared to their mismatches, noncomplementary, and nontarget species DNA measured by DPV. The developed biosensor exhibited a selective response towards reverse complementary DNAs and was able to discriminate turtles from other species. The modified electrode displayed good linearity for reverse complementary DNAs in the range of 1 × 10-11-5 × 10-6 M with a limit of detection of 0.85 × 10-12 M. This indicates that the proposed biosensor has the potential to be applied for the detection of real turtle species.
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Affiliation(s)
- Abu Hashem
- Nanotechnology and Catalysis Research Centre, Institute for Advanced Studies, University of Malaya, 50603, Kuala Lumpur, Malaysia
- Microbial Biotechnology Division, National Institute of Biotechnology, Ganakbari, Ashulia, Savar, Dhaka-1349, Bangladesh
| | - M A Motalib Hossain
- Nanotechnology and Catalysis Research Centre, Institute for Advanced Studies, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Ab Rahman Marlinda
- Nanotechnology and Catalysis Research Centre, Institute for Advanced Studies, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Mohammad Al Mamun
- Nanotechnology and Catalysis Research Centre, Institute for Advanced Studies, University of Malaya, 50603, Kuala Lumpur, Malaysia
- Department of Chemistry, Jagannath University, Dhaka-1100, Bangladesh
| | - Khanom Simarani
- Department of Microbiology, Institute of Biological Sciences, Faculty of Sciences, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Mohd Rafie Johan
- Nanotechnology and Catalysis Research Centre, Institute for Advanced Studies, University of Malaya, 50603, Kuala Lumpur, Malaysia
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9
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Murata T, Minami K, Yamazaki T, Yoshikawa G, Ariga K. Detection of Trace Amounts of Water in Organic Solvents by DNA-Based Nanomechanical Sensors. BIOSENSORS 2022; 12:1103. [PMID: 36551070 PMCID: PMC9775023 DOI: 10.3390/bios12121103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
The detection of trace amounts of water in organic solvents is of great importance in the field of chemistry and in the industry. Karl Fischer titration is known as a classic method and is widely used for detecting trace amounts of water; however, it has some limitations in terms of rapid and direct detection because of its time-consuming sample preparation and specific equipment requirements. Here, we found that a DNA-based nanomechanical sensor exhibits high sensitivity and selectivity to water vapor, leading to the detection and quantification of trace amounts of water in organic solvents as low as 12 ppm in THF, with a ppb level of LoD through their vapors. Since the present method is simple and rapid, it can be an alternative technique to the conventional Karl Fischer titration.
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Affiliation(s)
- Tomohiro Murata
- Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8561, Japan
- International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan
| | - Kosuke Minami
- Center for Functional Sensor & Actuator (CFSN), Research Center for Functional Materials (RCFM), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan
| | - Tomohiko Yamazaki
- Research Center for Functional Materials (RCFM), National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba 305-0047, Japan
- Division of Life Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0808, Japan
| | - Genki Yoshikawa
- Center for Functional Sensor & Actuator (CFSN), Research Center for Functional Materials (RCFM), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan
- Materials Science and Engineering, Graduate School of Pure and Applied Science, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8571, Japan
| | - Katsuhiko Ariga
- Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8561, Japan
- International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan
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Huber F, Lang HP, Heller S, Bielicki JA, Gerber C, Meyer E, Egli A. Rapid Bacteria Detection from Patients' Blood Bypassing Classical Bacterial Culturing. BIOSENSORS 2022; 12:994. [PMID: 36354504 PMCID: PMC9688106 DOI: 10.3390/bios12110994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/26/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
Sepsis is a life-threatening condition mostly caused by a bacterial infection resulting in inflammatory reaction and organ dysfunction if not treated effectively. Rapid identification of the causing bacterial pathogen already in the early stage of bacteremia is therefore vital. Current technologies still rely on time-consuming procedures including bacterial culturing up to 72 h. Our approach is based on ultra-rapid and highly sensitive nanomechanical sensor arrays. In measurements we observe two clearly distinguishable distributions consisting of samples with bacteria and without bacteria respectively. Compressive surface stress indicates the presence of bacteria. For this proof-of-concept, we extracted total RNA from EDTA whole blood samples from patients with blood-culture-confirmed bacteremia, which is the reference standard in diagnostics. We determined the presence or absence of bacterial RNA in the sample through 16S-rRNA hybridization and species-specific probes using nanomechanical sensor arrays. Via both probes, we identified two clinically highly-relevant bacterial species i.e., Escherichia coli and Staphylococcus aureus down to an equivalent of 20 CFU per milliliter EDTA whole blood. The dynamic range of three orders of magnitude covers most clinical cases. We correctly identified all patient samples regarding the presence or absence of bacteria. We envision our technology as an important contribution to early and sensitive sepsis diagnosis directly from blood without requirement for cultivation. This would be a game changer in diagnostics, as no commercial PCR or POCT device currently exists who can do this.
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Affiliation(s)
- François Huber
- Swiss Nanoscience Institute (SNI), Department of Physics, University of Basel, CH-4056 Basel, Switzerland
| | - Hans Peter Lang
- Swiss Nanoscience Institute (SNI), Department of Physics, University of Basel, CH-4056 Basel, Switzerland
| | - Stefanie Heller
- Applied Microbiology Research (Lab 315), Zentrum für Lehre und Forschung, Department of Biomedicine, University of Basel, CH-4031 Basel, Switzerland
| | - Julia Anna Bielicki
- University Children’s Hospital Basel (UKBB), Department of Medicine, University of Basel, CH-4056 Basel, Switzerland
| | - Christoph Gerber
- Swiss Nanoscience Institute (SNI), Department of Physics, University of Basel, CH-4056 Basel, Switzerland
| | - Ernst Meyer
- Swiss Nanoscience Institute (SNI), Department of Physics, University of Basel, CH-4056 Basel, Switzerland
| | - Adrian Egli
- Applied Microbiology Research (Lab 315), Zentrum für Lehre und Forschung, Department of Biomedicine, University of Basel, CH-4031 Basel, Switzerland
- Clinical Bacteriology and Mycology, University Hospital Basel, CH-4031 Basel, Switzerland
- Institute of Medical Microbiology, University of Zurich, CH-8006 Zurich, Switzerland
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11
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Hashem A, Marlinda AR, Hossain MAM, Al Mamun M, Shalauddin M, Simarani K, Johan MR. A Unique Oligonucleotide Probe Hybrid on Graphene Decorated Gold Nanoparticles Modified Screen-Printed Carbon Electrode for Pork Meat Adulteration. Electrocatalysis (N Y) 2022. [DOI: 10.1007/s12678-022-00779-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Recent Advances in Nanomechanical Membrane-Type Surface Stress Sensors towards Artificial Olfaction. BIOSENSORS 2022; 12:bios12090762. [PMID: 36140147 PMCID: PMC9496807 DOI: 10.3390/bios12090762] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/08/2022] [Accepted: 09/14/2022] [Indexed: 11/17/2022]
Abstract
Nanomechanical sensors have gained significant attention as powerful tools for detecting, distinguishing, and identifying target analytes, especially odors that are composed of a complex mixture of gaseous molecules. Nanomechanical sensors and their arrays are a promising platform for artificial olfaction in combination with data processing technologies, including machine learning techniques. This paper reviews the background of nanomechanical sensors, especially conventional cantilever-type sensors. Then, we focus on one of the optimized structures for static mode operation, a nanomechanical Membrane-type Surface stress Sensor (MSS), and discuss recent advances in MSS and their applications towards artificial olfaction.
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13
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Sena-Torralba A, Álvarez-Diduk R, Parolo C, Piper A, Merkoçi A. Toward Next Generation Lateral Flow Assays: Integration of Nanomaterials. Chem Rev 2022; 122:14881-14910. [PMID: 36067039 PMCID: PMC9523712 DOI: 10.1021/acs.chemrev.1c01012] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
![]()
Lateral flow assays (LFAs) are currently the most used
point-of-care
sensors for both diagnostic (e.g., pregnancy test, COVID-19 monitoring)
and environmental (e.g., pesticides and bacterial monitoring) applications.
Although the core of LFA technology was developed several decades
ago, in recent years the integration of novel nanomaterials as signal
transducers or receptor immobilization platforms has brought improved
analytical capabilities. In this Review, we present how nanomaterial-based
LFAs can address the inherent challenges of point-of-care (PoC) diagnostics
such as sensitivity enhancement, lowering of detection limits, multiplexing,
and quantification of analytes in complex samples. Specifically, we
highlight the strategies that can synergistically solve the limitations
of current LFAs and that have proven commercial feasibility. Finally,
we discuss the barriers toward commercialization and the next generation
of LFAs.
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Affiliation(s)
- Amadeo Sena-Torralba
- Nanobioelectronics & Biosensors Group, Institut Català de Nanociència I Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, Spain.,Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Ruslan Álvarez-Diduk
- Nanobioelectronics & Biosensors Group, Institut Català de Nanociència I Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Claudio Parolo
- Barcelona Institute for Global Health (ISGlobal) Hospital Clínic-Universitat de Barcelona, Carrer del Rosselló 132, 08036 Barcelona, Spain
| | - Andrew Piper
- Nanobioelectronics & Biosensors Group, Institut Català de Nanociència I Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Arben Merkoçi
- Nanobioelectronics & Biosensors Group, Institut Català de Nanociència I Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona, Spain.,Catalan Institution for Research and Advanced Studies (ICREA), Pg. Lluís Companys 23, 08010 Barcelona, Spain
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14
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Yan S, Wang L, Wang Y, Cao Z, Zhang S, Du X, Fan P, Zhang P, Chen HY, Huang S. Non-binary Encoded Nucleic Acid Barcodes Directly Readable by a Nanopore. Angew Chem Int Ed Engl 2022; 61:e202116482. [PMID: 35261129 DOI: 10.1002/anie.202116482] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Indexed: 01/13/2023]
Abstract
A large collection of unique molecular barcodes is useful in the simultaneous sensing or screening of molecular analytes. Though the sequence of DNA has been widely applied to encode for molecular barcodes, decoding of these barcodes is normally assisted by sequencing. We here demonstrate a barcode system based solely on self-assembly of synthetic nucleic acids and direct nanopore decoding. Each molecular barcode is composed of "n" distinct information nodes in a non-binary manner and can be sequentially scanned and decoded by a Mycobacterium smegmatis porin A (MspA) nanopore. Nanopore events containing step-shaped features were consistently reported. 14 unique information nodes were developed which in principle could encode for 14n unique molecular barcodes in a barcode containing "n" information nodes. These barcode probes were adapted to detect different antibody proteins or cancer-related microRNAs, suggesting their immediate application in a wide variety of sensing applications.
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Affiliation(s)
- Shuanghong Yan
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, China.,Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 210023, Nanjing, China
| | - Liying Wang
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, China.,Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 210023, Nanjing, China
| | - Yuqin Wang
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, China.,Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 210023, Nanjing, China
| | - Zhenyuan Cao
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, China.,Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 210023, Nanjing, China
| | - Shanyu Zhang
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, China.,Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 210023, Nanjing, China
| | - Xiaoyu Du
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, China.,Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 210023, Nanjing, China
| | - Pingping Fan
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, China.,Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 210023, Nanjing, China
| | - Panke Zhang
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, China
| | - Shuo Huang
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, China.,Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 210023, Nanjing, China
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15
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Yan S, Wang L, Wang Y, Cao Z, Zhang S, Du X, Fan P, Zhang P, Chen H, Huang S. Non‐binary Encoded Nucleic Acid Barcodes Directly Readable by a Nanopore. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shuanghong Yan
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
- Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University 210023 Nanjing China
| | - Liying Wang
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
- Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University 210023 Nanjing China
| | - Yuqin Wang
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
- Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University 210023 Nanjing China
| | - Zhenyuan Cao
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
- Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University 210023 Nanjing China
| | - Shanyu Zhang
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
- Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University 210023 Nanjing China
| | - Xiaoyu Du
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
- Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University 210023 Nanjing China
| | - Pingping Fan
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
- Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University 210023 Nanjing China
| | - Panke Zhang
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
| | - Hong‐Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
| | - Shuo Huang
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
- Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University 210023 Nanjing China
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16
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Targeted design of green carbon dot-CA-125 aptamer conjugate for the fluorescence imaging of ovarian cancer cell. Cell Biochem Biophys 2021; 80:75-88. [PMID: 34716880 DOI: 10.1007/s12013-021-01034-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 09/15/2021] [Indexed: 12/12/2022]
Abstract
Aptamer-Carbon Dot (CD) bioconjugation is an attractive target-tracking strategy in detecting cell surface antigens. This study describes an effective imaging paradigm for CA-125 antigen imaging. Our experience encompasses green CD synthesis and characterization, CD-capture probe conjugation through covalent bonding, the hybridization linkage of CD-probe to aptamer and their coupling confirmation, and fluorescent targeted imaging of ovarian cancer cells. As a result, the synthesized CDs from lemon extract by hydrothermal reaction show average size of 2 nm with maximum fluorescence intensity at excitation/emission 360/450 nm. CD-probe construction was provided by functional group interactions of CD and probe via EDC/NHS chemistry. The linkage of CD-probe to aptamer was conducted by Watson-Crick nucleotide pairing. The assessment of CD-probe and CD-probe-aptamer fabrication was validated by the increase in surface roughness through AFM analysis, the diminish of fluorescence intensity of CD after bioconjugation, and particle size growth of the construct. Conjugates with negligible cytotoxicity, appropriate zeta potential, and good aptamer release were applied in cellular imaging. This targeted diagnosis method was employed the four reported DNA aptamers toward fluorescence intensity. The DOV-3 aptamer showed more qualified detection over other aptamer conjugates during fluorescent microscopy analysis. In conclusion, the CD-probe-aptamer conjugate applications as toxic-free method can open new horizons in fluorescent nano-imaging in the field of targeted cancer cell diagnosis.
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17
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ESSENCE – A rapid, shear-enhanced, flow-through, capacitive electrochemical platform for rapid detection of biomolecules. Biosens Bioelectron 2021; 182:113163. [DOI: 10.1016/j.bios.2021.113163] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/25/2021] [Accepted: 03/10/2021] [Indexed: 01/24/2023]
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18
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Ali MR, Bacchu MS, Setu MAA, Akter S, Hasan MN, Chowdhury FT, Rahman MM, Ahommed MS, Khan MZH. Development of an advanced DNA biosensor for pathogenic Vibrio cholerae detection in real sample. Biosens Bioelectron 2021; 188:113338. [PMID: 34030094 DOI: 10.1016/j.bios.2021.113338] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/10/2021] [Accepted: 05/11/2021] [Indexed: 11/28/2022]
Abstract
Due to the epidemics of emerging microbial diseases worldwide, the accurate and rapid quantification of pathogenic bacteria is extremely critical. In this work, a highly sensitive DNA-based electrochemical biosensor has been developed to detect Vibrio cholerae using gold nanocube and 3-aminopropyltriethoxysilane (APTES) modified glassy carbon electrode (GCE) with DNA carrier matrix. Electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM) experiments were performed to interrogate the proposed sensor at each stage of preparation. The biosensor has demonstrated high sensitivity with a wide linear response range to target DNA from 10-8 to 10-14 (R2= 0.992) and 10-14 to 10-27 molL-1 (R2= 0.993) with a limit of detection (LOD) value of 7.41 × 10-30 molL-1 (S/N = 5). The biosensor also exhibits a selective detection behavior in bacterial cultures that belong to the same and distant genera. Moreover, the proposed sensor can be used for six consecutive DNA assays with a repeatability relative standard deviations (RSD) value of 5% (n = 5). Besides, the DNA biosensor shows excellent recovery for detecting V. cholerae in poultry feces, indicating that the designed biosensor could become a powerful tool for pathogenic microorganisms screening in clinical diagnostics, food safety, and environmental monitoring.
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Affiliation(s)
- M R Ali
- Dept. of Chemical Engineering, Jashore University of Science and Technology, Jashore, 7408, Bangladesh; Laboratory of Nano-bio and Advanced Materials Engineering (NAME), Jashore University of Science and Technology, Jashore, 7408, Bangladesh
| | - M S Bacchu
- Dept. of Chemical Engineering, Jashore University of Science and Technology, Jashore, 7408, Bangladesh; Laboratory of Nano-bio and Advanced Materials Engineering (NAME), Jashore University of Science and Technology, Jashore, 7408, Bangladesh
| | - M A A Setu
- Dept. of Microbiology, Jashore University of Science and Technology, Jashore, 7408, Bangladesh
| | - S Akter
- Dept. of Microbiology, Jashore University of Science and Technology, Jashore, 7408, Bangladesh
| | - M N Hasan
- Dept. of Chemical Engineering, Jashore University of Science and Technology, Jashore, 7408, Bangladesh; Laboratory of Nano-bio and Advanced Materials Engineering (NAME), Jashore University of Science and Technology, Jashore, 7408, Bangladesh
| | - F T Chowdhury
- Dept. of Chemistry, University of Rajshahi, Rajshahi, 7205, Bangladesh
| | - M M Rahman
- Dept. of General Educational Development (GED), Daffodil International University, Mirpur Road, Dhanmondi, Dhaka, 1207, Bangladesh
| | - M S Ahommed
- Dept. of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai, 980-8578, Japan
| | - M Z H Khan
- Dept. of Chemical Engineering, Jashore University of Science and Technology, Jashore, 7408, Bangladesh; Laboratory of Nano-bio and Advanced Materials Engineering (NAME), Jashore University of Science and Technology, Jashore, 7408, Bangladesh.
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19
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Huber F, Lang HP, Lang D, Wüthrich D, Hinić V, Gerber C, Egli A, Meyer E. Rapid and Ultrasensitive Detection of Mutations and Genes Relevant to Antimicrobial Resistance in Bacteria. GLOBAL CHALLENGES (HOBOKEN, NJ) 2021; 5:2000066. [PMID: 33552553 PMCID: PMC7857129 DOI: 10.1002/gch2.202000066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 11/06/2020] [Indexed: 06/12/2023]
Abstract
The worldwide emergence of multidrug-resistant (MDR) bacteria is associated with significant morbidity, mortality, and healthcare costs. Rapid and accurate diagnostic methods to detect antibiotic resistance are critical for antibiotic stewardship and infection control measurements. Here a cantilever nanosensor-based diagnostic assay is shown to detect single nucleotide polymorphisms (SNPs) and genes associated with antibiotic resistance in Gram negative (Pseudomonas aeruginosa) and positive (Enterococcus faecium) bacteria, representing frequent causes for MDR infections. Highly specific RNA capture probes for SNPs (ampRD135G or ampRG154R ) or resistance genes (vanA, vanB, and vanD) allow to detect the binding of bacterial RNA within less than 5 min. Serial dilutions of bacterial RNA indicate an unprecedented sensitivity of 10 fg µL-1 total RNA corresponding to less than ten bacterial cells for SNPs and 1 fg µL-1 total RNA for vanD detection equivalent to single bacterial cell sensitivity.
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Affiliation(s)
- François Huber
- Swiss Nanoscience Institute (SNI)Department of PhysicsUniversity of BaselKlingelbergstrasse 82BaselCH‐4056Switzerland
| | - Hans Peter Lang
- Swiss Nanoscience Institute (SNI)Department of PhysicsUniversity of BaselKlingelbergstrasse 82BaselCH‐4056Switzerland
| | - Daniela Lang
- Clinical Bacteriology and Mycology, University Hospital BaselApplied Microbiology ResearchDepartment of BiomedicineUniversity of BaselPetersgraben 4Basel4031Switzerland
| | - Daniel Wüthrich
- Clinical Bacteriology and Mycology, University Hospital BaselApplied Microbiology ResearchDepartment of BiomedicineUniversity of BaselPetersgraben 4Basel4031Switzerland
| | - Vladimira Hinić
- Clinical Bacteriology and Mycology, University Hospital BaselApplied Microbiology ResearchDepartment of BiomedicineUniversity of BaselPetersgraben 4Basel4031Switzerland
| | - Christoph Gerber
- Swiss Nanoscience Institute (SNI)Department of PhysicsUniversity of BaselKlingelbergstrasse 82BaselCH‐4056Switzerland
| | - Adrian Egli
- Clinical Bacteriology and Mycology, University Hospital BaselApplied Microbiology ResearchDepartment of BiomedicineUniversity of BaselPetersgraben 4Basel4031Switzerland
| | - Ernst Meyer
- Swiss Nanoscience Institute (SNI)Department of PhysicsUniversity of BaselKlingelbergstrasse 82BaselCH‐4056Switzerland
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20
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Ngamdee T, Yin LS, Vongpunsawad S, Poovorawan Y, Surareungchai W, Lertanantawong B. Target Induced-DNA strand displacement reaction using gold nanoparticle labeling for hepatitis E virus detection. Anal Chim Acta 2020; 1134:10-17. [PMID: 33059855 DOI: 10.1016/j.aca.2020.08.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 08/08/2020] [Accepted: 08/11/2020] [Indexed: 12/19/2022]
Abstract
DNA strand displacement is an attractive, enzyme-free target hybridization strategy for nano-biosensing. The target DNA induces a strand displacement reaction by replacing the pre-hybridized strand that is labeled with gold nanoparticles (AuNPs). Thus, the amount of displaced-AuNP-labeled strand is proportional to the amount of target DNA in the sample. The use of a magnetogenosensing technique to isolate the target DNA allows for a simple, one-pot detection approach, which minimizes possible carry-over contamination and pipetting errors. We sought a proof-of-concept for this technology in its ability to detect DNA-equivalent of hepatitis E virus (HEV), which causes acute viral hepatitis for which rapid and simple diagnostic methods remain limited. Signal detection was done via visual observation, spectrophotometry, and electrochemistry. The sensor demonstrated good sensitivity with detection limits of 10 pM (visual), 10 pM (spectrophotometry) and 1 fM (electrochemical). This sensor also exhibited high specificity for real target amplicons and could discriminate between perfect and mismatched sequences. Lyophilized biosensor reagents stored at 4 °C, 25 °C, and outdoor ambient temperature, were stable for up to 90, 50, and 40 days, respectively. The integration of magnetic separation and target DNA-induced strand displacement reaction in a dry reagent form makes the sensing platform easy-to-use and suitable for field settings.
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Affiliation(s)
- Tatchanun Ngamdee
- Department of Biotechnology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, 10150, Thailand
| | - Lee Su Yin
- Faculty of Applied Sciences, AIMST University, Bedong, Kedah, 08100, Malaysia
| | - Sompong Vongpunsawad
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Yong Poovorawan
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Werasak Surareungchai
- Department of Biotechnology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, 10150, Thailand; Nanoscience and Nanotechnology Program, King Mongkut's University of Technology Thonburi (KMUTT), Bangkok, 10140, Thailand
| | - Benchaporn Lertanantawong
- Nanoscience and Nanotechnology Program, King Mongkut's University of Technology Thonburi (KMUTT), Bangkok, 10140, Thailand; Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Salaya, Nakhon Pathom, 73170, Thailand.
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21
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Goodchild SA, Gao R, Shenton DP, McIntosh AJS, Brown T, Bartlett PN. Direct Detection and Discrimination of Nucleotide Polymorphisms Using Anthraquinone Labeled DNA Probes. Front Chem 2020; 8:381. [PMID: 32478035 PMCID: PMC7235368 DOI: 10.3389/fchem.2020.00381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 04/14/2020] [Indexed: 02/04/2023] Open
Abstract
A novel electrochemical detection approach using DNA probes labeled with Anthraquinone (AQ) as a reporter moiety has been successfully exploited as a method for the direct detection of DNA targets. This assay uses simple voltammetry techniques (Differential Pulse Voltammetry) to exploit the unique responsiveness of AQ to its chemical environments within oxygenated aqueous buffers, providing a specific detection mechanism as a result of DNA hybridization. This measurement is based on a cathodic shift of the reduction potential of the AQ tag and the concurrent reduction in peak current upon DNA binding. The further utility of this approach for discrimination of closely related DNA targets is demonstrated using DNA strands specific to B. anthracis and closely related bacillus species. DNA targets were designed to the rpoB gene incorporating nucleotide polymorphisms associated with different bacillus species. This assay was used to demonstrate that the shift in reduction potential is directly related to the homology of the target DNA. The discriminatory mechanism is dependent on the presence of oxygen in the measurement buffer and is strongly linked to the position of the nucleotide polymorphisms; with homology at the terminus carrying the AQ functionalised nucleotide critical to achieving accurate discrimination. This understanding of assay design was used to demonstrate an optimized assay capable of discriminating between Yersinia pestis (the causative agent of plague) and closely related species based on the groEL gene. This method is attractive as it can not only detect DNA binding, but can also discriminate between multiple Single Nucleotide Polymorphisms (SNPs) within that DNA without the need for any additional reagents, reporters, or processes such as melting of DNA strands. This indicates that this approach may have great potential to be exploited within novel biosensors for detection and diagnosis of infectious disease in future Point of Care (PoC) devices.
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Affiliation(s)
- Sarah A Goodchild
- Defence Science and Technology Laboratory, Salisbury, United Kingdom.,University of Southampton, Southampton, United Kingdom
| | - Rachel Gao
- University of Southampton, Southampton, United Kingdom
| | - Daniel P Shenton
- Defence Science and Technology Laboratory, Salisbury, United Kingdom
| | | | - Tom Brown
- Chemistry Research Laboratory, University of Oxford, Oxford, United Kingdom
| | - Philip N Bartlett
- Defence Science and Technology Laboratory, Salisbury, United Kingdom
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22
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Young AP, Jackson DJ, Wyeth RC. A technical review and guide to RNA fluorescence in situ hybridization. PeerJ 2020; 8:e8806. [PMID: 32219032 PMCID: PMC7085896 DOI: 10.7717/peerj.8806] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 02/25/2020] [Indexed: 12/20/2022] Open
Abstract
RNA-fluorescence in situ hybridization (FISH) is a powerful tool to visualize target messenger RNA transcripts in cultured cells, tissue sections or whole-mount preparations. As the technique has been developed over time, an ever-increasing number of divergent protocols have been published. There is now a broad selection of options available to facilitate proper tissue preparation, hybridization, and post-hybridization background removal to achieve optimal results. Here we review the technical aspects of RNA-FISH, examining the most common methods associated with different sample types including cytological preparations and whole-mounts. We discuss the application of commonly used reagents for tissue preparation, hybridization, and post-hybridization washing and provide explanations of the functional roles for each reagent. We also discuss the available probe types and necessary controls to accurately visualize gene expression. Finally, we review the most recent advances in FISH technology that facilitate both highly multiplexed experiments and signal amplification for individual targets. Taken together, this information will guide the methods development process for investigators that seek to perform FISH in organisms that lack documented or optimized protocols.
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Affiliation(s)
- Alexander P Young
- Department of Biology, St. Francis Xavier University, Antigonish, NS, Canada
| | - Daniel J Jackson
- Department of Geobiology, Georg-August Universität Göttingen, Göttingen, Germany
| | - Russell C Wyeth
- Department of Biology, St. Francis Xavier University, Antigonish, NS, Canada
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23
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Yrad FM, Castañares JM, Alocilja EC. Visual Detection of Dengue-1 RNA Using Gold Nanoparticle-Based Lateral Flow Biosensor. Diagnostics (Basel) 2019; 9:E74. [PMID: 31336721 PMCID: PMC6787709 DOI: 10.3390/diagnostics9030074] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 07/02/2019] [Accepted: 07/10/2019] [Indexed: 01/05/2023] Open
Abstract
Dengue is a rapidly spreading mosquito-borne viral disease. Early diagnosis is important for clinical screening, medical management, and disease surveillance. The objective of this study was to develop a colorimetric lateral flow biosensor (LFB) for the visual detection of dengue-1 RNA using dextrin-capped gold nanoparticle (AuNP) as label. The detection was based on nucleic acid sandwich-type hybridization among AuNP-labeled DNA reporter probe, dengue-1 target RNA, and dengue-1 specific DNA capture probe immobilized on the nitrocellulose membrane. Positive test generated a red test line on the LFB strip, which enabled visual detection. The optimized biosensor has a cut-off value of 0.01 µM using synthetic dengue-1 target. Proof-of-concept application of the biosensor detected dengue-1 virus in pooled human sera with a cut-off value of 1.2 × 104 pfu/mL. The extracted viral RNA, when coupled with nucleic acid sequence-based amplification (NASBA), was detected on the LFB in 20 min. This study first demonstrates the applicability of dextrin-capped AuNP as label for lateral flow assay. The biosensor being developed provides a promising diagnostic platform for early detection of dengue infection in high-risk resource-limited areas.
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Affiliation(s)
- Flora M Yrad
- Nano-Biosensors Lab, Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI 48824, USA
- Department of Chemistry, University of San Carlos, Talamban, Cebu 6000, Philippines
- Department of Chemistry, Silliman University, Dumaguete 6200, Philippines
| | | | - Evangelyn C Alocilja
- Nano-Biosensors Lab, Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI 48824, USA.
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24
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Nurul Najian A, Foo PC, Ismail N, Kim-Fatt L, Yean CY. Probe-specific loop-mediated isothermal amplification magnetogenosensor assay for rapid and specific detection of pathogenic Leptospira. Mol Cell Probes 2019; 44:63-68. [DOI: 10.1016/j.mcp.2019.03.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 02/28/2019] [Accepted: 03/10/2019] [Indexed: 12/13/2022]
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25
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Liu YH, Deng HH, Li HN, Shi TF, Peng HP, Liu AL, Chen W, Hong GL. A DNA electrochemical biosensor based on homogeneous hybridization for the determination of Cryptococcus neoformans. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.09.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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26
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Zhou MH, Meng WL, Zhang CY, Li XB, Wu JZ, Zhang NH. The pH-dependent elastic properties of nanoscale DNA films and the resultant bending signals for microcantilever biosensors. SOFT MATTER 2018; 14:3028-3039. [PMID: 29637943 DOI: 10.1039/c7sm01883e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The diverse mechanical properties of nanoscale DNA films on solid substrates have a close correlation with complex detection signals of micro-/nano-devices. This paper is devoted to formulating several multiscale models to study the effect of pH-dependent ionic inhomogeneity on the graded elastic properties of nanoscale DNA films and the resultant bending deflections of microcantilever biosensors. First, a modified inverse Debye length is introduced to improve the classical Poisson-Boltzmann equation for the electrical potential of DNA films to consider the inhomogeneous effect of hydrogen ions. Second, the graded characteristics of the particle distribution are taken into consideration for an improvement in Parsegian's mesoscopic potential for both attraction-dominated and repulsion-dominated films. Third, by the improved interchain interaction potential and the thought experiment about the compression of a macroscopic continuum DNA bar, we investigate the diversity of the elastic properties of single-stranded DNA (ssDNA) films due to pH variations. The relevant theoretical predictions quantitatively or qualitatively agree well with the relevant DNA experiments on the electrical potential, film thickness, condensation force, elastic modulus, and microcantilever deflections. The competition between attraction and repulsion among the fixed charges and the free ions endows the DNA film with mechanical properties such as a remarkable size effect and a non-monotonic behavior, and a negative elastic modulus is first revealed in the attraction-dominated ssDNA film. There exists a transition between the pH-sensitive parameter interval and the pH-insensitive one for the bending signals of microcantilevers, which is predominated by the initial stress effect in the DNA film.
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Affiliation(s)
- Mei-Hong Zhou
- Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China
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27
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Xu Y, Huo B, Sun X, Ning B, Peng Y, Bai J, Gao Z. Rapid detection of staphylococcal enterotoxin B in milk samples based on fluorescence hybridization chain reaction amplification. RSC Adv 2018; 8:16024-16031. [PMID: 35542189 PMCID: PMC9080154 DOI: 10.1039/c8ra01599f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 04/24/2018] [Indexed: 12/20/2022] Open
Abstract
A rapid, simple, and sensitive method has been developed to detect staphylococcal enterotoxin B (SEB). To establish the hybridization chain reaction-based aptasensor, we described the new probes of two hairpins (H1 and H2), which were first designed based on the partial complementary sequence of the SEB aptamer (cDNA). The H1 labeled with a fluorophore and a quencher can act as a molecular fluorescence “switch”. Hence, in the presence of SEB, the aptamer binds SEB, while the unbound cDNA triggers HCR to carry out the cyclic hybridization of H1 and H2 so as to turn “ON” the fluorescence through forming long nicked DNA. By using this new strategy, SEB can be sensitively detected within the range of 3.13 ng mL−1 to 100 ng mL−1 with a detection limit of 0.33 ng mL−1 (S/N = 3). Furthermore, the developed method could facilitate the detection of SEB effectively in milk samples. A new competitive aptasensor combined with HCR was developed for SEB detection.![]()
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Affiliation(s)
- Yanyang Xu
- College of Food Science and Engineering
- Jilin University
- Changchun 130022
- P. R. China
| | - Bingyang Huo
- College of Food Science and Engineering
- Jilin University
- Changchun 130022
- P. R. China
| | - Xuan Sun
- Huazhong Agricultural University
- College of Life Science and Technology
- Wuhan 430070
- P. R. China
| | - Baoan Ning
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety
- Institute of Environmental and Operational Medicine
- Academy of Military Medical Science
- Academy of Military Science
- Tianjin 300050
| | - Yuan Peng
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety
- Institute of Environmental and Operational Medicine
- Academy of Military Medical Science
- Academy of Military Science
- Tianjin 300050
| | - Jialei Bai
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety
- Institute of Environmental and Operational Medicine
- Academy of Military Medical Science
- Academy of Military Science
- Tianjin 300050
| | - Zhixian Gao
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety
- Institute of Environmental and Operational Medicine
- Academy of Military Medical Science
- Academy of Military Science
- Tianjin 300050
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28
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Kim J, Olsen TR, Zhu J, Hilton JP, Yang KA, Pei R, Stojanovic MN, Lin Q. Integrated Microfluidic Isolation of Aptamers Using Electrophoretic Oligonucleotide Manipulation. Sci Rep 2016; 6:26139. [PMID: 27217242 PMCID: PMC4877600 DOI: 10.1038/srep26139] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 04/20/2016] [Indexed: 01/06/2023] Open
Abstract
We present a microfluidic approach to integrated isolation of DNA aptamers via systematic evolution of ligands by exponential enrichment (SELEX). The approach employs a microbead-based protocol for the processes of affinity selection and amplification of target-binding oligonucleotides, and an electrophoretic DNA manipulation scheme for the coupling of these processes, which are required to occur in different buffers. This achieves the full microfluidic integration of SELEX, thereby enabling highly efficient isolation of aptamers in drastically reduced times and with minimized consumption of biological material. The approach as such also offers broad target applicability by allowing selection of aptamers with respect to targets that are either surface-immobilized or solution-borne, potentially allowing aptamers to be developed as readily available affinity reagents for a wide range of targets. We demonstrate the utility of this approach on two different procedures, respectively for isolating aptamers against a surface-immobilized protein (immunoglobulin E) and a solution-phase small molecule (bisboronic acid in the presence of glucose). In both cases aptamer candidates were isolated in three rounds of SELEX within a total process time of approximately 10 hours.
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Affiliation(s)
- Jinho Kim
- Department of Mechanical Engineering, Columbia University, New York, New York 10027, United States
| | - Timothy R. Olsen
- Department of Mechanical Engineering, Columbia University, New York, New York 10027, United States
| | - Jing Zhu
- Department of Mechanical Engineering, Columbia University, New York, New York 10027, United States
| | - John P. Hilton
- Department of Mechanical Engineering, Columbia University, New York, New York 10027, United States
| | - Kyung-Ae Yang
- Division of Clinical Pharmacology and Experimental Therapeutics, Department of Medicine, Columbia University, Columbia University, New York, NY 10032, United States
| | - Renjun Pei
- Division of Nanobiomedicine, Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, China
| | - Milan N. Stojanovic
- Division of Clinical Pharmacology and Experimental Therapeutics, Department of Medicine, Columbia University, Columbia University, New York, NY 10032, United States
| | - Qiao Lin
- Department of Mechanical Engineering, Columbia University, New York, New York 10027, United States
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29
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Zhang NH, Wu JZ, Meng WL, Tan ZQ. Effect of surface charge state on the surface stress of a microcantilever. NANOTECHNOLOGY 2016; 27:144001. [PMID: 26916422 DOI: 10.1088/0957-4484/27/14/144001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The surface charge state at a liquid-solid interface is important to the variations in the physical/chemical properties of adsorbate film such as surface stress and the ensuing tip deflection of the microcantilever. The well-known Stoney's equation, derived more than 100 years ago, conceals the film electrical properties with the replacement of substrate deformation induced by adsorptions of particles. This implicit expression provides a shortcut to circumvent the difficulty in identifying some film properties, however, it limits the capacity to ascertain the relation between surface stress variation and the surface charge state. In this paper, we present an analytical expression to quantify the cantilever deflection/surface stress and the film potential difference by combining the piezoelectric theory and Poisson-Boltzmann equation for electrolyte solution. This updated version indicates that the two linear correlations between surface stress and surface charge density or the bias voltage are not contradictory, but two aspects of one thing under different conditions. Based on Parsegian's mesoscopic interaction potential, a multiscale prediction for the piezoelectric coefficient of double-stranded DNA (dsDNA) film is done, and the results show that the distinctive size effect with variations in salt concentration and nucleotide number provides us with an opportunity to obtain a more sensitive potential-actuated microcantilever sensor by careful control of packing conditions.
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Affiliation(s)
- Neng-Hui Zhang
- Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, People's Republic of China. Department of Mechanics, College of Sciences, Shanghai University, Shanghai 200444, People's Republic of China
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30
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Evaluation of the formation of a junctional DNA nanostructure through annealing curve analysis. Biochem Biophys Res Commun 2015; 457:542-6. [PMID: 25597993 DOI: 10.1016/j.bbrc.2015.01.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 01/07/2015] [Indexed: 11/20/2022]
Abstract
During the self-assembly of different numbers of oligonucleotides comprising junctional DNA nanostructures, a change in environmental variables (e.g., temperature or salt concentration) has a substantial influence on the final products. Further, distinctive annealing temperatures of oligonucleotides are observed depending on the state of hybridization. Here, we present an evaluation of the annealing characteristics of oligonucleotides for the formation of a simple junctional DNA nanostructure using an annealing curve analysis. This method may be useful for analyzing the formation of complex junctional DNA nanostructures.
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31
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Ternary DNA chip based on a novel thymine spacer group chemistry. Colloids Surf B Biointerfaces 2015; 125:270-6. [DOI: 10.1016/j.colsurfb.2014.10.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 10/24/2014] [Accepted: 10/30/2014] [Indexed: 11/24/2022]
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32
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Domínguez CM, Kosaka PM, Mokry G, Pini V, Malvar O, del Rey M, Ramos D, San Paulo A, Tamayo J, Calleja M. Hydration induced stress on DNA monolayers grafted on microcantilevers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:10962-10969. [PMID: 25148575 DOI: 10.1021/la501865h] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Surface tethered single-stranded DNA films are relevant biorecognition layers for oligonucleotide sequence identification. Also, hydration induced effects on these films have proven useful for the nanomechanical detection of DNA hybridization. Here, we apply nanomechanical sensors and atomic force microscopy to characterize in air and upon varying relative humidity conditions the swelling and deswelling of grafted single stranded and double stranded DNA films. The combination of these techniques validates a two-step hybridization process, where complementary strands first bind to the surface tethered single stranded DNA probes and then slowly proceed to a fully zipped configuration. Our results also demonstrate that, despite the slow hybridization kinetics observed for grafted DNA onto microcantilever surfaces, ex situ sequence identification does not require hybridization times typically longer than 1 h, while quantification is a major challenge.
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Affiliation(s)
- Carmen M Domínguez
- Instituto de Microelectrónica de Madrid, IMM-CNM (CSIC), 28760 Tres Cantos, Spain
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33
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Dash SK, Sharma M, Kumar A, Khare S, Kumar A. Carbon composite-based DNA sensor for detection of bacterial meningitis caused by Neisseria meningitidis. J Solid State Electrochem 2014. [DOI: 10.1007/s10008-014-2525-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Jayant K, Auluck K, Rodriguez S, Cao Y, Kan EC. Programmable ion-sensitive transistor interfaces. III. Design considerations, signal generation, and sensitivity enhancement. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2014; 89:052817. [PMID: 25353854 DOI: 10.1103/physreve.89.052817] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Indexed: 06/04/2023]
Abstract
We report on factors that affect DNA hybridization detection using ion-sensitive field-effect transistors (ISFETs). Signal generation at the interface between the transistor and immobilized biomolecules is widely ascribed to unscreened molecular charges causing a shift in surface potential and hence the transistor output current. Traditionally, the interaction between DNA and the dielectric or metal sensing interface is modeled by treating the molecular layer as a sheet charge and the ionic profile with a Poisson-Boltzmann distribution. The surface potential under this scenario is described by the Graham equation. This approximation, however, often fails to explain large hybridization signals on the order of tens of mV. More realistic descriptions of the DNA-transistor interface which include factors such as ion permeation, exclusion, and packing constraints have been proposed with little or no corroboration against experimental findings. In this study, we examine such physical models by their assumptions, range of validity, and limitations. We compare simulations against experiments performed on electrolyte-oxide-semiconductor capacitors and foundry-ready floating-gate ISFETs. We find that with weakly charged interfaces (i.e., low intrinsic interface charge), pertinent to the surfaces used in this study, the best agreement between theory and experiment exists when ions are completely excluded from the DNA layer. The influence of various factors such as bulk pH, background salinity, chemical reactivity of surface groups, target molecule concentration, and surface coatings on signal generation is studied. Furthermore, in order to overcome Debye screening limited detection, we suggest two signal enhancement strategies. We first describe frequency domain biosensing, highlighting the ability to sort short DNA strands based on molecular length, and then describe DNA biosensing in multielectrolytes comprising trace amounts of higher-valency salt in a background of monovalent saline. Our study provides guidelines for optimized interface design, signal enhancement, and the interpretation of FET-based biosensor signals.
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Affiliation(s)
- Krishna Jayant
- Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Kshitij Auluck
- Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Sergio Rodriguez
- Department of Biology, Randolph College, Lynchburg, Virginia 24503, USA
| | - Yingqiu Cao
- Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Edwin C Kan
- Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA
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35
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Rao AN, Grainger DW. BIOPHYSICAL PROPERTIES OF NUCLEIC ACIDS AT SURFACES RELEVANT TO MICROARRAY PERFORMANCE. Biomater Sci 2014; 2:436-471. [PMID: 24765522 PMCID: PMC3992954 DOI: 10.1039/c3bm60181a] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Both clinical and analytical metrics produced by microarray-based assay technology have recognized problems in reproducibility, reliability and analytical sensitivity. These issues are often attributed to poor understanding and control of nucleic acid behaviors and properties at solid-liquid interfaces. Nucleic acid hybridization, central to DNA and RNA microarray formats, depends on the properties and behaviors of single strand (ss) nucleic acids (e.g., probe oligomeric DNA) bound to surfaces. ssDNA's persistence length, radius of gyration, electrostatics, conformations on different surfaces and under various assay conditions, its chain flexibility and curvature, charging effects in ionic solutions, and fluorescent labeling all influence its physical chemistry and hybridization under assay conditions. Nucleic acid (e.g., both RNA and DNA) target interactions with immobilized ssDNA strands are highly impacted by these biophysical states. Furthermore, the kinetics, thermodynamics, and enthalpic and entropic contributions to DNA hybridization reflect global probe/target structures and interaction dynamics. Here we review several biophysical issues relevant to oligomeric nucleic acid molecular behaviors at surfaces and their influences on duplex formation that influence microarray assay performance. Correlation of biophysical aspects of single and double-stranded nucleic acids with their complexes in bulk solution is common. Such analysis at surfaces is not commonly reported, despite its importance to microarray assays. We seek to provide further insight into nucleic acid-surface challenges facing microarray diagnostic formats that have hindered their clinical adoption and compromise their research quality and value as genomics tools.
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Affiliation(s)
- Archana N. Rao
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT 84112 USA
| | - David W. Grainger
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT 84112 USA
- Department of Bioengineering, University of Utah, Salt Lake City, UT 84112 USA
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36
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Thakur G, Jiang K, Lee D, Prashanthi K, Kim S, Thundat T. Investigation of pH-induced protein conformation changes by nanomechanical deflection. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:2109-2116. [PMID: 24512545 DOI: 10.1021/la403981t] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Broad-spectrum biosensing technologies examine sensor signals using biomarkers, such as proteins, DNA, antibodies, specific cells, and macromolecules, based on direct- or indirect-conformational changes. Here, we have investigated the pH-dependent conformational isomerization of human serum albumin (HSA) using microcantilevers as a sensing platform. Native and denatured proteins were immobilized on cantilever surfaces to understand the effect of pH on conformational changes of the protein with respect to the coupling ligand. Our results show that protonation and deprotonation of amino acid residues on proteins play a significant role in generating charge-induced cantilever deflection. Surface plasmon resonance (SPR) was employed as a complementary technique to validate the results.
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Affiliation(s)
- Garima Thakur
- Department of Chemical and Materials Engineering, University of Alberta , Edmonton, Alberta T6G 2 V4, Canada
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37
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Bai X, Hou H, Zhang B, Tang J. Label-free detection of kanamycin using aptamer-based cantilever array sensor. Biosens Bioelectron 2014; 56:112-6. [PMID: 24480130 DOI: 10.1016/j.bios.2013.12.068] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Revised: 12/14/2013] [Accepted: 12/31/2013] [Indexed: 11/26/2022]
Abstract
A label-free detection method of kanamycin using aptamer-based cantilever array sensor was developed. The cantilever array was composed of sensing cantilevers and reference cantilevers. This configuration allowed direct detection of individual cantilever deflections and subsequent determination of differential deflection of sensing/reference cantilever pair. The sensing cantilevers were functionalized with kanamycin aptamer, which was used as receptor molecules while the reference cantilevers were modified with 6-mercapto-1-hexanol (MCH) to eliminate the influence of environmental disturbances. The kanamycin-aptamer interaction induced a change in cantilever surface stress, which caused a differential deflection between the sensing and reference cantilever pair. The surface stress change was linear with kanamycin concentration over the range of 100 μM-10mM with a correlation coefficient of 0.995. A detection limit of 50 μM was obtained, at a signal-to-noise ratio of 3. The sensor also showed good selectivity against other antibiotics such as neomycin, ribostamycin and chloramphenicol. The facile method for kanamycin detection may have great potential for investigating more other molecules.
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Affiliation(s)
- Xiaojing Bai
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Hui Hou
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Bailin Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Jilin Tang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
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38
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Ravan H, Kashanian S, Sanadgol N, Badoei-Dalfard A, Karami Z. Strategies for optimizing DNA hybridization on surfaces. Anal Biochem 2013; 444:41-6. [PMID: 24121011 DOI: 10.1016/j.ab.2013.09.032] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Revised: 09/27/2013] [Accepted: 09/30/2013] [Indexed: 01/15/2023]
Abstract
Specific and predictable hybridization of the polynucleotide sequences to their complementary counterparts plays a fundamental role in the rational design of new nucleic acid nanodevices. Generally, nucleic acid hybridization can be performed using two major strategies, namely hybridization of DNA or RNA targets to surface-tethered oligonucleotide probes (solid-phase hybridization) and hybridization of the target nucleic acids to randomly distributed probes in solution (solution-phase hybridization). Investigations into thermodynamic and kinetic parameters of these two strategies showed that hybridization on surfaces is less favorable than that of the same sequence in solution. Indeed, the efficiency of DNA hybridization on surfaces suffers from three constraints: (1) electrostatic repulsion between DNA strands on the surface, (2) steric hindrance between tethered DNA probes, and (3) nonspecific adsorption of the attached oligonucleotides to the solid surface. During recent years, several strategies have been developed to overcome the problems associated with DNA hybridization on surfaces. Optimizing the probe surface density, application of a linker between the solid surface and the DNA-recognizing sequence, optimizing the pH of DNA hybridization solutions, application of thiol reagents, and incorporation of a polyadenine block into the terminal end of the recognizing sequence are among the most important strategies for enhancing DNA hybridization on surfaces.
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Affiliation(s)
- Hadi Ravan
- Department of Biology, Faculty of Science, Shahid Bahonar University, 76169-14111 Kerman, Iran.
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39
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Kosaka PM, González S, Domínguez CM, Cebollada A, San Paulo A, Calleja M, Tamayo J. Atomic force microscopy reveals two phases in single stranded DNA self-assembled monolayers. NANOSCALE 2013; 5:7425-7432. [PMID: 23832284 DOI: 10.1039/c3nr01186k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We have investigated the structure of single-stranded (ss) DNA self-assembled monolayers (SAMs) on gold by combining peak force tapping, Kelvin probe and phase contrast atomic force microscopy (AFM) techniques. The adhesion, surface potential and phase shift signals show heterogeneities in the DNA film structure at two levels: microscale and nanoscale; which cannot be clearly discerned in the topography. Firstly, there is multilayer aggregation covering less than 5% of the surface. The DNA multilayers seem to be ordered phases and their existence suggests that DNA end-to-end interaction can play a role in the self-assembly process. Secondly, we find the formation of two phases in the DNA monolayer, which differ both in surface energy and surface potential. We relate the two domains to differences in the packing density and in the ssDNA conformation. The discovered heterogeneities in ssDNA SAMs provide a new scenario in our vision of these relevant films that have direct consequences on their biological, chemical and physical properties.
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Affiliation(s)
- Priscila M Kosaka
- Bionanomechanics Lab, Institute of Microelectronics of Madrid, CSIC, Isaac Newton 8 (PTM), Tres Cantos, 28760 Madrid, Spain
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40
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Shen W, Lim CL, Gao Z. A ferrofluid-based homogeneous assay for highly sensitive and selective detection of single-nucleotide polymorphisms. Chem Commun (Camb) 2013; 49:8114-6. [PMID: 23923128 DOI: 10.1039/c3cc43281e] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and low-cost colorimetric assay utilizing ferrofluidic nanoparticulate probes (FNPs) and a ligase for single-nucleotide polymorphism genotyping is described. Excellent sensitivity and selectivity were accomplished through the engagement of the FNPs and a ligase chain reaction.
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Affiliation(s)
- Wei Shen
- Department of Chemistry, National University of Singapore, Singapore
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41
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Yoshikawa G, Loizeau F, Lee CJY, Akiyama T, Shiba K, Gautsch S, Nakayama T, Vettiger P, de Rooij NF, Aono M. Double-side-coated nanomechanical membrane-type surface stress sensor (MSS) for one-chip-one-channel setup. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:7551-7556. [PMID: 23742183 DOI: 10.1021/la3046719] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
With their capability for real-time and label-free detection of targets ranging from gases to biological molecules, nanomechanical sensors are expected to contribute to various fields, such as medicine, security, and environmental science. For practical applications, one of the major issues of nanomechanical sensors is the difficulty of coating receptor layers on their surfaces to which target molecules adsorb or react. To have measurable deflection, a single-side coating is commonly applied to cantilever-type geometry, and it requires specific methods or protocols, such as inkjet spotting or gold-thiol chemistry. If we can apply a double-side coating to nanomechanical sensors, it allows almost any kind of coating technique including dip coating methods, making nanomechanical sensors more useful with better user experiences. Here we address the feasibility of the double-side coating on nanomechanical sensors demonstrated by a membrane-type surface stress sensor (MSS) and verify its working principle by both finite element analysis (FEA) and experiments. In addition, simple hand-operated dip coating is demonstrated as a proof of concept, achieving practical receptor layers without any complex instrumentation. Because the double-side coating is compatible with batch protocols such as dip coating, double-side-coated MSS represents a new paradigm of one-chip-one-channel (channels on a chip are all coated with the same receptor layers) shifting from the conventional one-chip-multiple-channel (channels on a chip are coated with different receptor layers) paradigm.
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Affiliation(s)
- Genki Yoshikawa
- World Premier International (WPI) Research Center, International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki, Japan.
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42
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Zhang J, Lang HP, Battiston F, Backmann N, Huber F, Gerber C. Development of robust and standardized cantilever sensors based on biotin/NeutrAvidin coupling for antibody detection. SENSORS 2013; 13:5273-85. [PMID: 23604028 PMCID: PMC3673136 DOI: 10.3390/s130405273] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 04/10/2013] [Accepted: 04/15/2013] [Indexed: 11/23/2022]
Abstract
A cantilever-based protein biosensor has been developed providing a customizable multilayer platform for the detection of antibodies. It consists of a biotin-terminated PEG layer pre-functionalized on the gold-coated cantilever surface, onto which NeutrAvidin is adsorbed through biotin/NeutrAvidin specific binding. NeutrAvidin is used as a bridge layer between the biotin-coated surface and the biotinylated biomolecules, such as biotinylated bovine serum albumin (biotinylated BSA), forming a multilayer sensor for direct antibody capture. The cantilever biosensor has been successfully applied to the detection of mouse anti-BSA (m-IgG) and sheep anti-BSA(s-IgG) antibodies. As expected, the average differential surface stress signals of about 5.7 ± 0.8 × 10−3 N/m are very similar for BSA/m-IgG and BSA/s-IgG binding, i.e., they are independent of the origin of the antibody. A statistic evaluation of 112 response curves confirms that the multilayer protein cantilever biosensor shows high reproducibility. As a control test, a biotinylated maltose binding protein was used for detecting specificity of IgG, the result shows a signal of bBSA layer in response to antibody is 5.8 × 10−3 N/m compared to bMBP. The pre-functionalized biotin/PEG cantilever surface is found to show a long shelf-life of at least 40 days and retains its responsivity of above 70% of the signal when stored in PBS buffer at 4 °C. The protein cantilever biosensor represents a rapid, label-free, sensitive and reliable detection technique for a real-time protein assay.
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Affiliation(s)
- Jiayun Zhang
- Swiss Nano Institute, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland; E-Mails: (H.P.L.); (N.B.); (F.H.); (C.G.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +41-61-267-3769; Fax: +41-61-267-3784
| | - Hans Peter Lang
- Swiss Nano Institute, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland; E-Mails: (H.P.L.); (N.B.); (F.H.); (C.G.)
| | - Felice Battiston
- Concentris GmbH, Davidsbodenstrasse 63, 4056 Basel, Switzerland; E-Mail:
| | - Natalija Backmann
- Swiss Nano Institute, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland; E-Mails: (H.P.L.); (N.B.); (F.H.); (C.G.)
| | - Francois Huber
- Swiss Nano Institute, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland; E-Mails: (H.P.L.); (N.B.); (F.H.); (C.G.)
| | - Christoph Gerber
- Swiss Nano Institute, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland; E-Mails: (H.P.L.); (N.B.); (F.H.); (C.G.)
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Alvarez M, Fariña D, Escuela AM, Sendra JR, Lechuga LM. Development of a surface plasmon resonance and nanomechanical biosensing hybrid platform for multiparametric reading. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2013; 84:015008. [PMID: 23387688 DOI: 10.1063/1.4789430] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We have developed a hybrid platform that combines two well-known biosensing technologies based on quite different transducer principles: surface plasmon resonance and nanomechanical sensing. The new system allows the simultaneous and real-time detection of two independent parameters, refractive index change (Δn), and surface stress change (Δσ) when a biomolecular interaction takes place. Both parameters have a direct relation with the mass coverage of the sensor surface. The core of the platform is a common fluid cell, where the solution arrives to both sensor areas at the same time and under the same conditions (temperature, velocity, diffusion, etc.).The main objective of this integration is to achieve a better understanding of the physical behaviour of the transducers during sensing, increasing the information obtained in real time in one single experiment. The potential of the hybrid platform is demonstrated by the detection of DNA hybridization.
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Affiliation(s)
- Mar Alvarez
- Nanobiosensors and Bioanalytical Applications Group, Research Center on Nanoscience and Nanotechnology CIN2(CSIC) and CIBER-BBN, 08193 Bellaterra, Barcelona, Spain.
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Kosaka PM, Tamayo J, Ruz JJ, Puertas S, Polo E, Grazu V, de la Fuente JM, Calleja M. Tackling reproducibility in microcantilever biosensors: a statistical approach for sensitive and specific end-point detection of immunoreactions. Analyst 2012; 138:863-72. [PMID: 23223515 DOI: 10.1039/c2an36192b] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In the last decade, microcantilever biosensors have shown enormous potential for highly sensitive label-free detection of nucleic acid and proteins. Despite the enormous advances, the promise of applications of this technology in the biomedical field has been frustrated because of its low reproducibility. Here we tackle the reproducibility issue in microcantilever biosensors and provide the guidelines to minimize the deviations in the biosensor response between different assays. We use as a model system the label-free end-point detection of horseradish peroxidase. We choose the end-point detection mode because of its suitability for implementation in the clinical field that requires simplicity and point-of-care capability. Our study comprises the analysis of 1012 cantilevers with different antibody surface densities, two blocking strategies based on polyethylene-glycol (PEG) and bovine serum albumin (BSA) and stringent controls. The study reveals that the performance of the assay critically depends on both antibody surface density and blocking strategies. We find that the optimal conditions involve antibody surface densities near but below saturation and blocking with PEG. We find that the surface stress induced by the antibody-antigen binding is significantly correlated with the surface stress generated during the antibody attachment and blocking steps. The statistical correlation is harnessed to identify immobilization failure or success, and thus enhancing the specificity and sensitivity of the assay. This procedure enables achieving rates of true positives and true negatives of 90% and 91% respectively. The detection limit is of 10 ng mL(-1) (250 pM) that is similar to the detection limit obtained in our enzyme-linked immunosorbent assay (ELISA) and at least two orders of magnitude smaller than that achieved with well-established label-free biosensors such as a quartz crystal microbalance (QCM) and surface plasmon resonance (SPR) sensor.
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Affiliation(s)
- Priscila M Kosaka
- Instituto de Microelectrónica de Madrid, CSIC, Issac Newton 8, 28760 Tres Cantos, Madrid, Spain
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