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Rossetti M, Srisomwat C, Urban M, Rosati G, Maroli G, Yaman Akbay HG, Chailapakul O, Merkoçi A. Unleashing inkjet-printed nanostructured electrodes and battery-free potentiostat for the DNA-based multiplexed detection of SARS-CoV-2 genes. Biosens Bioelectron 2024; 250:116079. [PMID: 38295580 DOI: 10.1016/j.bios.2024.116079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/20/2024] [Accepted: 01/25/2024] [Indexed: 02/02/2024]
Abstract
Following the global COVID-19 pandemic triggered by SARS-CoV-2, the need for rapid, specific and cost-effective point-of-care diagnostic solutions remains paramount. Even though COVID-19 is no longer a public health emergency, the disease still poses a global threat leading to deaths, and it continues to change with the risk of new variants emerging causing a new surge in cases and deaths. Here, we address the urgent need for rapid, cost-effective and point-of-care diagnostic solutions for SARS-CoV-2. We propose a multiplexed DNA-based sensing platform that utilizes inkjet-printed nanostructured gold electrodes and an inkjet-printed battery-free near-field communication (NFC) potentiostat for the simultaneous quantitative detection of two SARS-CoV-2 genes, the ORF1ab and the N gene. The detection strategy based on the formation of an RNA-DNA sandwich structure leads to a highly specific electrochemical output. The inkjet-printed nanostructured gold electrodes providing a large surface area enable efficient binding and increase the sensitivity. The inkjet-printed battery-free NFC potentiostat enables rapid measurements and real-time data analysis via a smartphone application, making the platform accessible and portable. With the advantages of speed (5 min), simplicity, sensitivity (low pM range, ∼450% signal gain) and cost-effectiveness, the proposed platform is a promising alternative for point-of-care diagnostics and high-throughput analysis that complements the COVID-19 diagnostic toolkit.
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Affiliation(s)
- Marianna Rossetti
- Catalan Institute of Nanoscience and Nanotechnology, UAB Campus, 08193, Bellaterra, Barcelona, Spain.
| | - Chawin Srisomwat
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand
| | - Massimo Urban
- Catalan Institute of Nanoscience and Nanotechnology, UAB Campus, 08193, Bellaterra, Barcelona, Spain; Universitat Autònoma de Barcelona, Campus de la UAB, Bellaterra, Barcelona, 08193, Spain
| | - Giulio Rosati
- Catalan Institute of Nanoscience and Nanotechnology, UAB Campus, 08193, Bellaterra, Barcelona, Spain.
| | - Gabriel Maroli
- Catalan Institute of Nanoscience and Nanotechnology, UAB Campus, 08193, Bellaterra, Barcelona, Spain; Universitat Autònoma de Barcelona, Campus de la UAB, Bellaterra, Barcelona, 08193, Spain; Instituto de Investigaciones en Ingeniería Eléctrica Alfredo Desages (IIIE), Universidad Nacional del Sur, CONICET, Avenida Colón 80 Bahía Blanca, Buenos Aires, Argentina
| | - Hatice Gödze Yaman Akbay
- Catalan Institute of Nanoscience and Nanotechnology, UAB Campus, 08193, Bellaterra, Barcelona, Spain
| | - Orawon Chailapakul
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand
| | - Arben Merkoçi
- Catalan Institute of Nanoscience and Nanotechnology, UAB Campus, 08193, Bellaterra, Barcelona, Spain; ICREA Institució Catalana de Recerca i Estudis Avançats, Passeig Lluís Companys 23, 08010, Barcelona, Spain.
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Romanholo PVV, de Andrade LM, Silva-Neto HA, Coltro WKT, Sgobbi LF. Digitally Controlled Printing of Bioink Barriers for Paper-Based Analytical Devices: An Environmentally Friendly One-Step Approach. Anal Chem 2024; 96:5349-5356. [PMID: 38554084 DOI: 10.1021/acs.analchem.3c03801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2024]
Abstract
The patterning of hydrophilic paper with hydrophobic materials has emerged as an interesting method for the fabrication of paper-based devices (PADs). Herein, we demonstrate a digitally automated, easy, low-cost, eco-friendly, and readily available method to create highly hydrophobic barriers on paper that can be promptly employed with PADs by simply using a bioink made with rosin, a commercially available natural resin obtained from conifer trees. The bioink can be easily delivered with the use of a ballpoint pen to produce water- and organic solvent-resistant barriers, showing superior properties when compared to other methods such as wax-printing or permanent markers. The approach enables the pen to be attached to a commercially available cutting printer to perform the semiautomated fabrication of hydrophobic barriers for PADs. With the aid of digitally controlled optimization, together with features of machine learning and design of experiments, we show a thorough investigation on the barrier strength that can be further adjusted to the desired application's needs. Then, we explored the barrier sturdiness across various uses, such as wide range aqueous pH sensing and the harsh acidic/organic conditions needed for the colorimetric detection of cholecalciferol.
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Affiliation(s)
- Pedro V V Romanholo
- Instituto de Química, Universidade Federal de Goiás, 74690-900 Goiânia, Goiás, Brazil
| | - Larissa M de Andrade
- Instituto de Química, Universidade Federal de Goiás, 74690-900 Goiânia, Goiás, Brazil
| | - Habdias A Silva-Neto
- Instituto de Química, Universidade Federal de Goiás, 74690-900 Goiânia, Goiás, Brazil
| | - Wendell K T Coltro
- Instituto de Química, Universidade Federal de Goiás, 74690-900 Goiânia, Goiás, Brazil
- Instituto Nacional de Ciência e Tecnologia de Bioanalítica, 13083-861 Campinas, São Paulo, Brazil
| | - Livia F Sgobbi
- Instituto de Química, Universidade Federal de Goiás, 74690-900 Goiânia, Goiás, Brazil
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Qin X, Wei B, Xiang Y, Lu H, Liu F, Li X, Yang F. Exosome-tuned MOF signal amplifier boosting tumor exosome phenotyping with high-affinity nanostars. Biosens Bioelectron 2024; 245:115828. [PMID: 37976982 DOI: 10.1016/j.bios.2023.115828] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/19/2023]
Abstract
The natural phospholipid structure imparts exosomes with not only cargo protection, but rich sites for coordination with metal-organic frameworks (MOFs) to assemble functional nanocomplexes, such as signal amplifiers. Here, we exploit exosomes to tune MOF signal amplifiers (Exo-MOF) for ultrasensitive phenotyping of tumor-derived exosomes (tExo) based on self-driven coordination assembly and high-affinity nanostars. Exo-MOF leverages the specific coordination interaction between exosome and MOF that cages abundant redox molecules to assemble a super-redox signal amplifier. Moreover, the dispersed immuno-magnetic nanostars, which are assembled with antibodies on the surface of Au nanostars-coated magnetic nanoparticles, allow for rapid capturing of target tExo, addressing the limited mass transfer on electrode surface. Both Exo-MOF and high-affinity nanostars orchestrate the ultrahigh sensitivity (1 particle per 100 μL, higher than that no Exo-MOF by at least 10-fold), specificity and speed of the sensor in tExo detection. Such a sensitive strategy allows profiling tExo across seven cancer types, and revealing the distinct exosomal surface expression patterns. Further, the Exo-MOF sensor accurately distinguishes cancer patients from healthy individuals in a clinical cohort, and provides new opportunities for functional materials assembly and precision diagnostics.
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Affiliation(s)
- Xiaojie Qin
- Guangxi Key Laboratory of Pharmaceutical Precision Detection and Screening, Key Laboratory of Micro-Nanoscale Bioanalysis and Drug Screening of Guangxi Education Department, State Key Laboratory of Targeting Oncology, Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China
| | - Binqi Wei
- Guangxi Key Laboratory of Pharmaceutical Precision Detection and Screening, Key Laboratory of Micro-Nanoscale Bioanalysis and Drug Screening of Guangxi Education Department, State Key Laboratory of Targeting Oncology, Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China
| | - Yuanhang Xiang
- Guangxi Key Laboratory of Pharmaceutical Precision Detection and Screening, Key Laboratory of Micro-Nanoscale Bioanalysis and Drug Screening of Guangxi Education Department, State Key Laboratory of Targeting Oncology, Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China
| | - Hao Lu
- Guangxi Key Laboratory of Pharmaceutical Precision Detection and Screening, Key Laboratory of Micro-Nanoscale Bioanalysis and Drug Screening of Guangxi Education Department, State Key Laboratory of Targeting Oncology, Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China
| | - Fengfei Liu
- Department of Clinical Laboratory, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 530021, China
| | - Xinchun Li
- Guangxi Key Laboratory of Pharmaceutical Precision Detection and Screening, Key Laboratory of Micro-Nanoscale Bioanalysis and Drug Screening of Guangxi Education Department, State Key Laboratory of Targeting Oncology, Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China
| | - Fan Yang
- Guangxi Key Laboratory of Pharmaceutical Precision Detection and Screening, Key Laboratory of Micro-Nanoscale Bioanalysis and Drug Screening of Guangxi Education Department, State Key Laboratory of Targeting Oncology, Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China.
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Chen Y, Liang J, Tan X, Shan L, Zhang L, Li L, Ge S, Cui K, Yu J. Constructing DNAzyme-driven three-dimensional DNA nanomachine-mediated paper-based photoelectrochemical device for ultrasensitive detection of miR-486-5p. Biosens Bioelectron 2023; 241:115671. [PMID: 37714060 DOI: 10.1016/j.bios.2023.115671] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/29/2023] [Accepted: 09/04/2023] [Indexed: 09/17/2023]
Abstract
As a unique class of dynamic nanostructures, biomimetic DNA walking machines that exhibit geometrical complexity and nanometre precision have gained great success in photoelectrochemical (PEC) bioanalysis. Despite certain achievements, the slow reaction kinetics and low processivity severely restrict the amplification efficiency of the DNA walker-mediated biosensors. Herein, by taking advantage of efficient DNA rolling machines, a three-dimensional (3D) DNA nanomachine-mediated paper-based PEC device for speedy ultrasensitive detection of miR-486-5p was successfully constructed. To achieve it, a novel In2S3/SnS2 sensitized heterojunction was firstly in-situ grown on the Au-modified paper fibers and implemented as the photoanode with effective separation of photogenerated carriers to achieve an enhanced initial photocurrent. Subsequently, the copper hexacyanoferrate(II)-modified CuO nanosphere was introduced as a multifunctional signal regulator via the competitive capture of electron donors and photon energy with the photoelectric layer for efficiently quenching the PEC signal. With the introduction of targets, the DNAzyme-driven DNA nanomachine with editable motion modes was gradually activated and it could continuously cleave the tracks DNA labeled quenching probes, finally achieving the recovery of PEC signal. As a proof of concept, the elaborated paper-based PEC device presented a wide linear range from 0.1 fM to 100 pM and a detection limit of 35 aM for miR-486-5p bioassay. This work provides an innovative insight to the exploitation of DNA nanobiotechnology and nucleic acid signal amplification strategy.
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Affiliation(s)
- Yuanyuan Chen
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, PR China
| | - Jiaxin Liang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, PR China
| | - Xiaoran Tan
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, PR China
| | - Li Shan
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, PR China
| | - Lina Zhang
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan, Shandong, 250022, PR China
| | - Li Li
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, PR China.
| | - Shenguang Ge
- Institute for Advanced Interdisciplinary Research, University of Jinan, Jinan, 250022, PR China
| | - Kang Cui
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, PR China.
| | - Jinghua Yu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong, 250022, PR China
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Gangwar R, Ray D, Khatun S, Subrahmanyam C, Rengan AK, Vanjari SRK. Toll-like receptor-immobilized carbon paste electrodes with plasma functionalized amine termination: Towards real-time electrochemical based triaging of gram-negative bacteria. Biosens Bioelectron 2023; 241:115674. [PMID: 37717423 DOI: 10.1016/j.bios.2023.115674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/29/2023] [Accepted: 09/05/2023] [Indexed: 09/19/2023]
Abstract
Chronic wounds caused due to bacterial biofilms are detrimental to a patient, and an immediate diagnosis of these bacteria can aid in an effective treatment, which is still an unmet clinical need. An instant and accurate identification of bacterial type could be made by utilizing the Toll-Like Receptors (TLRs) combined with Myeloid Differentiation factor 2 (MD-2). Given this, we have developed an electrochemical sensing platform to identify the gram-negative (gram-ve) bacteria using TLR4/MD-2 complex. The nonthermal plasma (NTP) technique was utilized to functionalize amine groups onto the carbon surface to fabricate cost-effective carbon paste working electrodes (CPEs). The proposed electrochemical sensor platform with a specially engineered electrochemical cell (E-Cell) identified the Escherichia coli (E. coli) in a wide linear range of 1.5×10° - 1.5×106 C.F.U./mL, accounting for a very low detection limit of 0.087 C.F.U./mL. The novel and cost-effective sensor platform identified gram-ve bacteria predominantly in a mixture of gram positive (gram+ve) bacteria and fungi. Further, towards real-time detection of bacteria and point-of-care (PoC) applications, the effect of the pond water matrix was studied, which was minimal, and the sensor could identify E. coli concentrations selectively, showing the potential application of the proposed platform towards real-time bacterial detection.
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Affiliation(s)
- Rahul Gangwar
- Department of Electrical Engineering, Indian Institute of Technology Hyderabad, 502284, India.
| | - Debjyoti Ray
- Department of Chemistry, Indian Institute of Technology Hyderabad, 502284, India; Department of Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong Special Administrative Region of China.
| | - Sajmina Khatun
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, 502284, India.
| | | | - Aravind Kumar Rengan
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, 502284, India.
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Delprat N, Martins LO, Blum LJ, Aymard CMG, Leca-Bouvier B, Octobre G, Doumèche B. User-friendly one-step disposable signal-on bioassay for glyphosate detection in water samples. Biosens Bioelectron 2023; 241:115689. [PMID: 37716158 DOI: 10.1016/j.bios.2023.115689] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/30/2023] [Accepted: 09/10/2023] [Indexed: 09/18/2023]
Abstract
The onsite detection of glyphosate requires an easy-to-handle, low-cost and disposable assay for untrained users as requested by the ASSURED guidelines. A new strategy based on the expression of fusion proteins is proposed here. A glyphosate oxidase derived from Bacillus subtilis and the 6E10 variant of the dye peroxidase from Pseudomonas putida, both fused with the carbohydrate binding module (CBM) 3a from Clostridium thermocellum, were designed and expressed, leading to GlyphOx-CBM and 6E10-CBM. Cell lysates were used to immobilise both enzymes on cotton buds' heads without any purification. The cotton buds exhibit glyphosate oxidase activity when dipped into a glyphosate-contaminated water sample containing the 6E10-CBM chromogenic substrates. The chromophore could be quantified both in the solution and on the cotton buds' heads. Photography followed by image analysis allows to detect glyphosate with a linear range of 0.25-2.5 mM and a limit of detection (LoD) of 0.12 mM. When the chromogenic substrates are replaced by luminol, the chemiluminescence reaction allows the detection of glyphosate with a linear range of 2-500 μM and a LoD of 0.45 μM. No interference was observed using glyphosate analogues (glycine, sarcosine, aminomethylphosphonic acid) or other herbicides used in a mixture. Only cysteine was found to inhibit 6E10-CBM. Two river waters spiked with glyphosate lead to recoveries of 64-131%. This work describes a very easy-to-handle and inexpensive signal-on bioassay for glyphosate detection in real surface water samples.
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Affiliation(s)
- N Delprat
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ICBMS, UMR, 5246, 69622, Villeurbanne, France.
| | - L O Martins
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade NOVA de Lisboa, Av. da República, 2780-157, Oeiras, Portugal.
| | - L J Blum
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ICBMS, UMR, 5246, 69622, Villeurbanne, France.
| | - C M G Aymard
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ICBMS, UMR, 5246, 69622, Villeurbanne, France.
| | - B Leca-Bouvier
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ICBMS, UMR, 5246, 69622, Villeurbanne, France.
| | - G Octobre
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ICBMS, UMR, 5246, 69622, Villeurbanne, France.
| | - B Doumèche
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ICBMS, UMR, 5246, 69622, Villeurbanne, France.
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Huang X, Lu L, Lin Q, Wei Q, Tang D. Self-assembled p-n Ag 2O@Bi 2O 2S nanoflower heterojunctions for sensitive photoelectrochemical immunoassay. Biosens Bioelectron 2023; 239:115608. [PMID: 37603986 DOI: 10.1016/j.bios.2023.115608] [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: 07/24/2023] [Revised: 08/12/2023] [Accepted: 08/16/2023] [Indexed: 08/23/2023]
Abstract
A new photoelectrochemical immunoassay based on self-assembled p-n Ag2O@Bi2O2S nanoflower heterojunction was designed and developed for quantitative monitoring of prostate-specific antigen (PSA) in biological fluids. Primarily, self-assembled p-n Ag2O@Bi2O2S nanoflower heterojunctions were served as the photoactive materials and coated onto the surface of electrodes. Subsequently, the glucose oxidase (GOx) was bound to the detection antibody (mAb2) labeled gold nanoparticles (Au NPs) and then were employed to accomplish a sandwich-like immunoreaction to generate H2O2 on a microplate incubated with monoclonal anti-PSA antibodies. In the presence of PSA, the product (H2O2) was catalyzed by the substrate, which was used as an electron sacrificial agent to improve signal conversion and capture of photogenerated electrons. Under optimum conditions, a wide linear range of 0.01-50 ng mL-1 and a low detection limit of 5.3 pg mL-1 were accomplished with the sensor, exhibiting an excellent photocurrent response. Moreover, the proposed sensor revealed satisfactory reproducibility, high selectivity, and acceptable accuracy for the real sample testing. Importantly, our work provides a novel strategy for high sensitivity detection of disease-associated biomarkers for the early diagnosis of cancers.
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Affiliation(s)
- Xue Huang
- Key Laboratory for Analytical Science of Food Safety and Biology (MOE & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou, 350108, PR China
| | - Liling Lu
- Key Laboratory for Analytical Science of Food Safety and Biology (MOE & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou, 350108, PR China
| | - Qianyun Lin
- Key Laboratory for Analytical Science of Food Safety and Biology (MOE & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou, 350108, PR China
| | - Qiaohua Wei
- Key Laboratory for Analytical Science of Food Safety and Biology (MOE & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou, 350108, PR China.
| | - Dianping Tang
- Key Laboratory for Analytical Science of Food Safety and Biology (MOE & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou, 350108, PR China.
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