1
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Aliev TA, Lavrentev FV, Dyakonov AV, Diveev DA, Shilovskikh VV, Skorb EV. Electrochemical platform for detecting Escherichia coli bacteria using machine learning methods. Biosens Bioelectron 2024; 259:116377. [PMID: 38776798 DOI: 10.1016/j.bios.2024.116377] [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: 02/29/2024] [Revised: 04/24/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024]
Abstract
We present an electrochemical platform designed to reduce time of Escherichia coli bacteria detection from 24 to 48-h to 30 min. The presented approach is based on a system which includes gallium-indium (eGaIn) alloy to provide conductivity and a hydrogel system to preserve bacteria and their metabolic species during the analysis. The work is dedicated to accurate and fast detection of Escherichia coli bacteria in different environments with the supply of machine learning methods. Electrochemical data obtained during the analysis is processed via multilayer perceptron model to identify i.e. predict bacterial concentration in the samples. The performed approach provides the effectiveness of bacteria identification in the range of 102-109 colony forming units per ml with the average accuracy of 97%. The proposed bioelectrochemical system combined with machine learning model is prospective for food analysis, agriculture, biomedicine.
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Affiliation(s)
- Timur A Aliev
- Infochemistry Scientific Center, ITMO University, 9 Lomonosova Street, Saint-Petersburg, 191002, Russia
| | - Filipp V Lavrentev
- Infochemistry Scientific Center, ITMO University, 9 Lomonosova Street, Saint-Petersburg, 191002, Russia
| | - Alexandr V Dyakonov
- Infochemistry Scientific Center, ITMO University, 9 Lomonosova Street, Saint-Petersburg, 191002, Russia
| | - Daniil A Diveev
- Infochemistry Scientific Center, ITMO University, 9 Lomonosova Street, Saint-Petersburg, 191002, Russia
| | - Vladimir V Shilovskikh
- Infochemistry Scientific Center, ITMO University, 9 Lomonosova Street, Saint-Petersburg, 191002, Russia; Saint Petersburg State University, Universitetskaya Embankment 7-9, Saint-Petersburg, 199034, Russia
| | - Ekaterina V Skorb
- Infochemistry Scientific Center, ITMO University, 9 Lomonosova Street, Saint-Petersburg, 191002, Russia.
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2
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Shen M, Sogore T, Ding T, Feng J. Modernization of digital food safety control. ADVANCES IN FOOD AND NUTRITION RESEARCH 2024; 111:93-137. [PMID: 39103219 DOI: 10.1016/bs.afnr.2024.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
Foodborne illness remains a pressing global issue due to the complexities of modern food supply chains and the vast array of potential contaminants that can arise at every stage of food processing from farm to fork. Traditional food safety control systems are increasingly challenged to identify these intricate hazards. The U.S. Food and Drug Administration's (FDA) New Era of Smarter Food Safety represents a revolutionary shift in food safety methodology by leveraging cutting-edge digital technologies. Digital food safety control systems employ modern solutions to monitor food quality by efficiently detecting in real time a wide range of contaminants across diverse food matrices within a short timeframe. These systems also utilize digital tools for data analysis, providing highly predictive assessments of food safety risks. In addition, digital food safety systems can deliver a secure and reliable food supply chain with comprehensive traceability, safeguarding public health through innovative technological approaches. By utilizing new digital food safety methods, food safety authorities and businesses can establish an efficient regulatory framework that genuinely ensures food safety. These cutting-edge approaches, when applied throughout the food chain, enable the delivery of safe, contaminant-free food products to consumers.
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Affiliation(s)
- Mofei Shen
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, P.R. China; Zhejiang University Zhongyuan Institute, Zhengzhou, Henan, P.R. China
| | - Tahirou Sogore
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, P.R. China
| | - Tian Ding
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, P.R. China; Future Food Laboratory, Innovation Center of Yangtze River Delta, Zhejiang University, Jiaxing, Zhejiang, P.R. China
| | - Jinsong Feng
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, P.R. China; Future Food Laboratory, Innovation Center of Yangtze River Delta, Zhejiang University, Jiaxing, Zhejiang, P.R. China.
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3
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Yu Z, Zhao Y, Xie Y. Ensuring food safety by artificial intelligence-enhanced nanosensor arrays. ADVANCES IN FOOD AND NUTRITION RESEARCH 2024; 111:139-178. [PMID: 39103212 DOI: 10.1016/bs.afnr.2024.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
Current analytical methods utilized for food safety inspection requires improvement in terms of their cost-efficiency, speed of detection, and ease of use. Sensor array technology has emerged as a food safety assessment method that applies multiple cross-reactive sensors to identify specific targets via pattern recognition. When the sensor arrays are fabricated with nanomaterials, the binding affinity of analytes to the sensors and the response of sensor arrays can be remarkably enhanced, thereby making the detection process more rapid, sensitive, and accurate. Data analysis is vital in converting the signals from sensor arrays into meaningful information regarding the analytes. As the sensor arrays can generate complex, high-dimensional data in response to analytes, they require the use of machine learning algorithms to reduce the dimensionality of the data to gain more reliable outcomes. Moreover, the advances in handheld smart devices have made it easier to read and analyze the sensor array signals, with the advantages of convenience, portability, and efficiency. While facing some challenges, the integration of artificial intelligence with nanosensor arrays holds promise for enhancing food safety monitoring.
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Affiliation(s)
- Zhilong Yu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, P.R. China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China.
| | - Yali Zhao
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, P.R. China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China
| | - Yunfei Xie
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, P.R. China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China
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4
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Khalaf EM, Sanaan Jabbar H, Mireya Romero-Parra R, Raheem Lateef Al-Awsi G, Setia Budi H, Altamimi AS, Abdulfadhil Gatea M, Falih KT, Singh K, Alkhuzai KA. Smartphone-assisted microfluidic sensor as an intelligent device for on-site determination of food contaminants: Developments and applications. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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5
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Pant A, Kaur T, Sharma T, Singh J, Suttee A, Barnwal RP, Kaur IP, Singh G, Singh B. A glass matrices-assisted quantum dots-based biosensor for selective capturing and detection of Escherichia coli. JOURNAL OF WATER AND HEALTH 2022; 20:1673-1687. [PMID: 36573672 DOI: 10.2166/wh.2022.293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Bacterial contamination of water and food is a grave health concern rendering humans quite vulnerable to disease(s), and proving, at times, fatal too. Exploration of the novel diagnostic tools is, accordingly, highly called for to ensure rapid detection of the pathogenic bacteria, particularly Escherichia coli. The current manuscript, accordingly, reports the use of silane-functionalized glass matrices and antibody-conjugated cadmium telluride (CdTe) quantum dots (QDs) for efficient detection of E. coli. Synthesis of QDs (size: 5.4-6.8 nm) using mercaptopropionic acid (MPA) stabilizer yielded stable photoluminescence (∼62%), corroborating superior fluorescent characteristics. A test sample, when added to antibody-conjugated matrices, followed by antibody-conjugated CdTe-MPA QDs, formed a pathogen-antibody QDs complex. The latter, during confocal microscopy, demonstrated rapid detection of the selectively captured pathogenic bacteria (10 microorganism cells/10 μL) with enhanced sensitivity and specificity. The work, overall, encompasses establishment and design of an innovative detection platform in microbial diagnostics for rapid capturing of pathogens in water and food samples.
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Affiliation(s)
- Anjali Pant
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India 160014
| | - Taranvir Kaur
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India 160014
| | - Teenu Sharma
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, India 140401
| | - Joga Singh
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India 160014
| | - Ashish Suttee
- Department of Pharmacognosy, School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar, Punjab, India
| | | | - Indu Pal Kaur
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India 160014
| | - Gurpal Singh
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India 160014
| | - Bhupinder Singh
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India 160014 ; Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, India 140401
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6
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Su Z, Du T, Liang X, Wang X, Zhao L, Sun J, Wang J, Zhang W. Nanozymes for foodborne microbial contaminants detection: Mechanisms, recent advances, and challenges. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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7
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Srikanth S, Jayapiriya U, Dubey SK, Javed A, Goel S. A lab-on-chip platform for simultaneous culture and electrochemical detection of bacteria. iScience 2022; 25:105388. [DOI: 10.1016/j.isci.2022.105388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 09/26/2022] [Accepted: 10/14/2022] [Indexed: 11/05/2022] Open
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8
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Immunoassay based on urease-encapsulated metal-organic framework for sensitive detection of foodborne pathogen with pH meter as a readout. Mikrochim Acta 2022; 189:358. [PMID: 36040541 DOI: 10.1007/s00604-022-05462-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 08/16/2022] [Indexed: 10/14/2022]
Abstract
The potential of enzyme-encapsulated metal-organic framework (MOF) as an antibody label for the construction of enzyme-linked immunosorbent assay (ELISA) is demonstrated. Zeolitic imidazolate framework-90 (ZIF-90) was employed as a MOF model to load urease and pig immunoglobulin G (IgG) antibody. This leads to the production of U@ZIF-90/IgG composite, in which urease was encapsulated in ZIF-90 to form U@ZIF-90 for amplifying the detection signal, while IgG was anchored on the surface of U@ZIF-90 for specifically recognizing Staphylococcus aureus (S. aureus). Benefiting from the unique porous structure of ZIF-90, the U@ZIF-90 not only allows urease to be encapsulated with an ultrahigh loading efficiency, but also shields the loaded urease against harsh environments. The U@ZIF-90 shows a threefold higher catalytic activity than free urease due to the confinement effect. These findings lead to an ELISA with greatly enhanced sensitivity for S. aureus detection. By using a portable pH meter as a readout, the ELISA has a linear response that covers 10 to 109 CFU/mL S. aureus with a detection limit of 1.96 CFU/mL and exhibits high selectivity over other bacteria. The successful determination of S. aureus in milk samples demonstrates the applicability of the ELISA in a complex biological matrix.
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9
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Intelligent biosensing strategies for rapid detection in food safety: A review. Biosens Bioelectron 2022; 202:114003. [DOI: 10.1016/j.bios.2022.114003] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 11/15/2021] [Accepted: 01/13/2022] [Indexed: 12/26/2022]
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10
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Sadeghi K, Kim J, Seo J. Packaging 4.0: The threshold of an intelligent approach. Compr Rev Food Sci Food Saf 2022; 21:2615-2638. [DOI: 10.1111/1541-4337.12932] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 01/04/2022] [Accepted: 02/04/2022] [Indexed: 12/22/2022]
Affiliation(s)
- Kambiz Sadeghi
- Department of Packaging Yonsei University Wonju‐si Gangwon‐do South Korea
| | - Jongkyoung Kim
- Korea Conformity Laboratories Gumcheon‐gu Seoul South Korea
| | - Jongchul Seo
- Department of Packaging Yonsei University Wonju‐si Gangwon‐do South Korea
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11
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Xiao Z, Darwish GH, Susumu K, Medintz IL, Algar WR. Prototype Smartphone-Based Device for Flow Cytometry with Immunolabeling via Supra-nanoparticle Assemblies of Quantum Dots. ACS MEASUREMENT SCIENCE AU 2022; 2:57-66. [PMID: 36785592 PMCID: PMC9838726 DOI: 10.1021/acsmeasuresciau.1c00033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Methods for the detection, enumeration, and typing of cells are important in many areas of research and healthcare. In this context, flow cytometers are a widely used research and clinical tool but are also an example of a large and expensive instrument that is limited to specialized laboratories. Smartphones have been shown to have excellent potential to serve as portable and lower-cost platforms for analyses that would normally be done in a laboratory. Here, we developed a prototype smartphone-based flow cytometer (FC). This compact 3D-printed device incorporated a laser diode and a microfluidic flow cell and used the built-in camera of a smartphone to track immunofluorescently labeled cells in suspension and measure their color. This capability was enabled by high-brightness supra-nanoparticle assemblies of colloidal semiconductor quantum dots (SiO2@QDs) as well as a support vector machine (SVM) classification algorithm. The smartphone-based FC device detected and enumerated target cells against a background of other cells, simultaneously and selectively counted two different cell types in a mixture, and used multiple colors of SiO2@QD-antibody conjugates to screen for and identify a particular cell type. The potential limits of multicolor detection are discussed alongside ideas for further development. Our results suggest that innovations in materials and engineering should enable eventual smartphone-based FC assays for clinical applications.
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Affiliation(s)
- Zhujun Xiao
- Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Ghinwa H. Darwish
- Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Kimihiro Susumu
- Jacobs
Corporation, Hanover, Maryland 21076, United
States
- Optical
Sciences Division, Code 5600, U.S. Naval
Research Laboratory, Washington, D.C. 20375, United States
| | - Igor L. Medintz
- Center
for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
| | - W. Russ Algar
- Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
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12
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Shenashen MA, Emran MY, El Sabagh A, Selim MM, Elmarakbi A, El-Safty SA. Progress in sensory devices of pesticides, pathogens, coronavirus, and chemical additives and hazards in food assessment: Food safety concerns. PROGRESS IN MATERIALS SCIENCE 2022; 124:100866. [DOI: 10.1016/j.pmatsci.2021.100866] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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13
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Kim KR, Lee KW, Chun HJ, Lee D, Kim JH, Yoon HC. Wash-free operation of smartphone-integrated optical immunosensor using retroreflective microparticles. Biosens Bioelectron 2022; 196:113722. [PMID: 34700265 DOI: 10.1016/j.bios.2021.113722] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 09/09/2021] [Accepted: 10/16/2021] [Indexed: 12/28/2022]
Abstract
Herein, we introduce a smartphone-integrated immunosensor based on non-spectroscopic optical detection. Sedimentation of the retroreflector and gentle inversion of the microfluidic chip was chosen as biosensing principles to ensure minimal human involvement. To realize this, wash-free immunosensing was implemented on a polymeric microfluidic chip device fabricated for light signal penetration in retroreflection signal acquisition. Applying a transparent chip and passive modulation of retroreflectors enabled the minimization of human error during sensing. In addition, a retroreflection-detectable optical gadget was constructed for integration with the commercial smartphone. The gadget had an optical chamber that induced retroreflection by integration with a smartphone. When the micro-sized reflector, named the retroreflective Janus microparticle, reacted on the sensing surface, the incident light was retroreflected towards the image sensor and quantified by a smartphone-installed Android application package. The developed application package features include time-lapse image capture performed by manipulating LED flash and camera modules, and quantification of retroreflected signal counts by image processing of time-lapse images. With this platform, the user could independently commence optical signal processing without a complicated optical setup and running software on a PC, and sensitive and reproducible immunosensing results could be obtained. The applicability test for creatine kinase-myocardial band detection from the buffer to serum was conducted and presented a calibration curve of 0-1000 ng/mL within 1 h. With the developed system, we believe that the applicability of the platform in bioanalytical detection can be expanded.
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Affiliation(s)
- Ka Ram Kim
- Department of Molecular Science & Technology, Ajou University, Suwon, 16499, Republic of Korea
| | - Kyung Won Lee
- Department of Molecular Science & Technology, Ajou University, Suwon, 16499, Republic of Korea
| | - Hyeong Jin Chun
- Department of Molecular Science & Technology, Ajou University, Suwon, 16499, Republic of Korea
| | - Danbi Lee
- Department of Molecular Science & Technology, Ajou University, Suwon, 16499, Republic of Korea
| | - Jae-Ho Kim
- Department of Molecular Science & Technology, Ajou University, Suwon, 16499, Republic of Korea
| | - Hyun C Yoon
- Department of Molecular Science & Technology, Ajou University, Suwon, 16499, Republic of Korea.
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Luka GS, Nowak E, Toyata QR, Tasnim N, Najjaran H, Hoorfar M. Portable on-chip colorimetric biosensing platform integrated with a smartphone for label/PCR-free detection of Cryptosporidium RNA. Sci Rep 2021; 11:23192. [PMID: 34853388 PMCID: PMC8636559 DOI: 10.1038/s41598-021-02580-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 11/16/2021] [Indexed: 11/13/2022] Open
Abstract
Cryptosporidium, a protozoan pathogen, is a leading threat to public health and the economy. Herein, we report the development of a portable, colorimetric biosensing platform for the sensitive, selective and label/PCR-free detection of Cryptosporidium RNA using oligonucleotides modified gold nanoparticles (AuNPs). A pair of specific thiolated oligonucleotides, complementary to adjacent sequences on Cryptosporidium RNA, were attached to AuNPs. The need for expensive laboratory-based equipment was eliminated by performing the colorimetric assay on a micro-fabricated chip in a 3D-printed holder assembly. A smartphone camera was used to capture an image of the color change for quantitative analysis. The detection was based on the aggregation of the gold nanoparticles due to the hybridization between the complementary Cryptosporidium RNA and the oligonucleotides immobilized on the AuNPs surface. In the complementary RNA's presence, a distinctive color change of the AuNPs (from red to blue) was observed by the naked eye. However, in the presence of non-complementary RNA, no color change was observed. The sensing platform showed wide linear responses between 5 and 100 µM with a low detection limit of 5 µM of Cryptosporidium RNA. Additionally, the sensor developed here can provide information about different Cryptosporidium species present in water resources. This cost-effective, easy-to-use, portable and smartphone integrated on-chip colorimetric biosensor has great potential to be used for real-time and portable POC pathogen monitoring and molecular diagnostics.
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Affiliation(s)
- George S Luka
- School of Engineering, Faculty of Applied Science, The University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Ephraim Nowak
- School of Engineering, Faculty of Applied Science, The University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Quin Robert Toyata
- School of Engineering, Faculty of Applied Science, The University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Nishat Tasnim
- School of Engineering, Faculty of Applied Science, The University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Homayoun Najjaran
- School of Engineering, Faculty of Applied Science, The University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Mina Hoorfar
- School of Engineering, Faculty of Applied Science, The University of British Columbia, Kelowna, BC, V1V 1V7, Canada.
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Fu X, Sun J, Liang R, Guo H, Wang L, Sun X. Application progress of microfluidics-integrated biosensing platforms in the detection of foodborne pathogens. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.07.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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16
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Abstract
During the past few decades, there has been a growing trend towards the use of smartphone-based analysis systems. This is mainly due to its ubiquity, its increasing computing capacity, its relatively low cost and the ability to acquire and process data at the same time. Furthermore, there are many sensors integrated into a smartphone, for example a complementary metal-oxide semiconductor (CMOS) sensor. A CMOS sensor enables optical analysis for example by using it as a colorimeter, photometer or spectrometer. This review explores the current state-of-the-art smartphone-based optical analysis systems in various areas of application. It is organized into three sections, each of which investigates one class of smartphone-based devices: (i) smartphone-based colorimeters (ii) smartphone-based photo- and spectrometers and (iii) smartphone-based fluorimeters.
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Affiliation(s)
- Sarah Di Nonno
- TU Kaiserslautern, Chair of Bioprocess Engineering, Kaiserslautern, Germany.
| | - Roland Ulber
- TU Kaiserslautern, Chair of Bioprocess Engineering, Kaiserslautern, Germany.
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17
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Kalinowska K, Wojnowski W, Tobiszewski M. Smartphones as tools for equitable food quality assessment. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.02.068] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Zangheri M, Di Nardo F, Calabria D, Marchegiani E, Anfossi L, Guardigli M, Mirasoli M, Baggiani C, Roda A. Smartphone biosensor for point-of-need chemiluminescence detection of ochratoxin A in wine and coffee. Anal Chim Acta 2021; 1163:338515. [PMID: 34024424 DOI: 10.1016/j.aca.2021.338515] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 04/08/2021] [Accepted: 04/11/2021] [Indexed: 02/07/2023]
Abstract
Exposure to mycotoxins, which may contaminate food and feed commodities, represents a serious health risk for consumers. Ochratoxin A (OTA) is one of the most abundant and toxic mycotoxins, thus specific regulations for fixing its maximum admissible levels in foodstuff have been established. Lateral Flow ImmunoAssay (LFIA)-based devices have been proposed as screening tools to avoid OTA contamination along the whole food chain. We report a portable, user-friendly smartphone-based biosensor for the detection and quantification of OTA in wine and instant coffee, which combines the LFIA approach with chemiluminescence (CL) detection. The device employs the smartphone camera as a light detector and uses low-cost, disposable analytical cartridges containing the LFIA strip and all the necessary reagents. The analysis can be carried out at the point of need by non-specialized operators through simple manual operations. The biosensor allows OTA quantitative detection in wine and coffee samples up to 25 μg L-1 and with limits of detection of 0.3 and 0.1 μg L-1, respectively, which are below the European law-fixed limits. These results demonstrate that the developed device can be used for routine monitoring of OTA contamination, enabling rapid and reliable identification of positive samples requiring confirmatory analysis.
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Affiliation(s)
- Martina Zangheri
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy; Interdepartmental Centre of Industrial Agrifood Research (CIRI Agrifood), Alma Mater Studiorum, University of Bologna, Piazza Goidanich 60, 47521, Cesena, FC, Italy.
| | - Fabio Di Nardo
- Department of Chemistry, University of Turin, Via P. Giuria 5, 10125, Torino, Italy.
| | - Donato Calabria
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - Elisa Marchegiani
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - Laura Anfossi
- Department of Chemistry, University of Turin, Via P. Giuria 5, 10125, Torino, Italy
| | - Massimo Guardigli
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy; Interdepartmental Centre of Industrial Research "Renewable Sources, Environment, Blue Growth, Energy", University of Bologna, Via Angherà 22, Rimini, 47921, Italy
| | - Mara Mirasoli
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy; Interuniversity Consortium "Istituto Nazionale Biostrutture e Biosistemi" (INBB) - Viale Delle Medaglie D'Oro 305, 00136, Roma, Italy; Interdepartmental Centre of Industrial Research "Renewable Sources, Environment, Blue Growth, Energy", University of Bologna, Via Angherà 22, Rimini, 47921, Italy
| | - Claudio Baggiani
- Department of Chemistry, University of Turin, Via P. Giuria 5, 10125, Torino, Italy
| | - Aldo Roda
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy; Interuniversity Consortium "Istituto Nazionale Biostrutture e Biosistemi" (INBB) - Viale Delle Medaglie D'Oro 305, 00136, Roma, Italy
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Modernization of Control of Pathogenic Micro-Organisms in the Food-Chain Requires a Durable Role for Immunoaffinity-Based Detection Methodology-A Review. Foods 2021; 10:foods10040832. [PMID: 33920486 PMCID: PMC8069916 DOI: 10.3390/foods10040832] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/28/2021] [Accepted: 04/02/2021] [Indexed: 01/03/2023] Open
Abstract
Food microbiology is deluged by a vastly growing plethora of analytical methods. This review endeavors to color the context into which methodology has to fit and underlines the importance of sampling and sample treatment. The context is that the highest risk of food contamination is through the animal and human fecal route with a majority of foodborne infections originating from sources in mass and domestic kitchens at the end of the food-chain. Containment requires easy-to-use, failsafe, single-use tests giving an overall risk score in situ. Conversely, progressive food-safety systems are relying increasingly on early assessment of batches and groups involving risk-based sampling, monitoring environment and herd/flock health status, and (historic) food-chain information. Accordingly, responsible field laboratories prefer specificity, multi-analyte, and high-throughput procedures. Under certain etiological and epidemiological circumstances, indirect antigen immunoaffinity assays outperform the diagnostic sensitivity and diagnostic specificity of e.g., nucleic acid sequence-based assays. The current bulk of testing involves therefore ante- and post-mortem probing of humoral response to several pathogens. In this review, the inclusion of immunoglobulins against additional invasive micro-organisms indicating the level of hygiene and ergo public health risks in tests is advocated. Immunomagnetic separation, immunochromatography, immunosensor, microsphere array, lab-on-a-chip/disc platforms increasingly in combination with nanotechnologies, are discussed. The heuristic development of portable and ambulant microfluidic devices is intriguing and promising. Tant pis, many new platforms seem unattainable as the industry standard. Comparability of results with those of reference methods hinders the implementation of new technologies. Whatever the scientific and technological excellence and incentives, the decision-maker determines this implementation after weighing mainly costs and business risks.
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Huang W, Luo S, Yang D, Zhang S. Applications of smartphone-based near-infrared (NIR) imaging, measurement, and spectroscopy technologies to point-of-care (POC) diagnostics. J Zhejiang Univ Sci B 2021; 22:171-189. [PMID: 33719223 DOI: 10.1631/jzus.b2000388] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The role of point-of-care (POC) diagnostics is important in public health. With the support of smartphones, POC diagnostic technologies can be greatly improved. This opportunity has arisen from not only the large number and fast spread of cell-phones across the world but also their improved imaging/diagnostic functions. As a tool, the smartphone is regarded as part of a compact, portable, and low-cost system for real-time POC, even in areas with few resources. By combining near-infrared (NIR) imaging, measurement, and spectroscopy techniques, pathogens can be detected with high sensitivity. The whole process is rapid, accurate, and low-cost, and will set the future trend for POC diagnostics. In this review, the development of smartphone-based NIR fluorescent imaging technology was described, and the quality and potential of POC applications were discussed.
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Affiliation(s)
- Wenjing Huang
- Ningbo Research Institute, Zhejiang University, Ningbo 315100, China.,Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Shenglin Luo
- Institute of Combined Injury, State Key Laboratory of Trauma, Burn and Combined Injury, College of Preventive Medicine, Third Military Medical University, Chongqing 400038, China.,Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown 02129, USA
| | - Dong Yang
- Division of Biomedical Engineering, Renal Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge 02139, USA
| | - Sheng Zhang
- Ningbo Research Institute, Zhejiang University, Ningbo 315100, China. .,State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China.
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21
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Wang K, Wang Z, Zeng H, Luo X, Yang T. Advances in Portable Visual Detection of Pathogenic Bacteria. ACS APPLIED BIO MATERIALS 2020; 3:7291-7305. [PMID: 35019472 DOI: 10.1021/acsabm.0c00984] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Food safety and regulation of consumer welfare are of great concern, so it is necessary to be able to detect pathogenic bacteria quickly and effectively. Although traditional methods of pathogen detection are reliable and widely used, the detection and analysis processes are cumbersome and time-consuming, which is not conducive to fast assays in the field. New detection strategies have emerged in recent years, especially point-of-care testing (POCT) methods, which do not rely on the laboratory and have become an important development direction for pathogen detection. Many visual detection schemes have been developed that integrate portable glucose meters (PGMs), test strips, smartphones, and other portable devices. Importantly, portable and ultrasensitive biosensors have vast promise in detecting pathogens, as they can be suitable tools for clinical diagnosis and the regulation of food safety. This Review focuses on the latest advances in portable device-based methods for visual detection of pathogens, evaluating their advantages and disadvantages.
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Affiliation(s)
- Kuiyu Wang
- School of Chemical Engineering and Technology, Sun Yat-sen University, Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519082, China
| | - Zhenhao Wang
- School of Chemical Engineering and Technology, Sun Yat-sen University, Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519082, China
| | - Hui Zeng
- School of Chemical Engineering and Technology, Sun Yat-sen University, Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519082, China
| | - Xiliang Luo
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Tao Yang
- School of Chemical Engineering and Technology, Sun Yat-sen University, Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519082, China
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22
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Chen W, Yao Y, Chen T, Shen W, Tang S, Lee HK. Application of smartphone-based spectroscopy to biosample analysis: A review. Biosens Bioelectron 2020; 172:112788. [PMID: 33157407 DOI: 10.1016/j.bios.2020.112788] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/05/2020] [Accepted: 10/30/2020] [Indexed: 12/18/2022]
Abstract
The emergence of the smartphones has brought extensive changes to our lifestyles, from communicating with one another, to shopping and enjoyment of entertainment, and from studying to functioning at the workplace (and in the field). At the same time, this portable device has also provided new possibilities in scientific research and applications. Based on the growing awareness of good health management, researchers have coupled health monitoring to smartphone sensing technologies. Along the way, there have been developed a variety of smartphone-based optical detection platforms for analyzing biological samples, including standalone smartphone units and integrated smartphone sensing systems. In this review, we outline the applications of smartphone-based optical sensors for biosamples. These applications focus mainly on three aspects: Microscopic imaging sensing, colorimetric sensing and luminescence sensing. We also discuss briefly some limitations of the current state of smartphone-based spectroscopy and present prospects of the future applicability of smartphone sensors.
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Affiliation(s)
- Wenhui Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, China
| | - Yao Yao
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, China
| | - Tianyu Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, China
| | - Wei Shen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, China
| | - Sheng Tang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, China.
| | - Hian Kee Lee
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore; National University of Singapore Environmental Research Institute, T-Lab Building #02-01, 5A Engineering Drive 1, Singapore, 117411, Singapore; Tropical Marine Science Institute, National University of Singapore, S2S Building, 18 Kent Ridge Road, Singapore, 119227, Singapore.
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23
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Bilican I, Bahadir T, Bilgin K, Guler MT. Alternative screening method for analyzing the water samples through an electrical microfluidics chip with classical microbiological assay comparison of P. aeruginosa. Talanta 2020; 219:121293. [PMID: 32887035 DOI: 10.1016/j.talanta.2020.121293] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 06/09/2020] [Accepted: 06/10/2020] [Indexed: 12/13/2022]
Abstract
Pseudomonas aeruginosa is a pathogenic bacterium in fresh water supplies that creates a risk for public health. Microbiological analysis of drinking water samples is time consuming and requires qualified personnel. Here we offer a screening system for rapid analysis of spring water that has the potential to be turned into a point-of-need system by means of simple mechanism. The test, which takes 1 h to complete, electrically interrogates the particles through a microfluidic chip suspended in the water sample. We tested the platform using water samples with micro beads and water samples spiked with P. aeruginosa at various concentrations. The mono disperse micro beads were used to evaluate the performance of the system. The results were verified by the gold standard membrane filtration method, which yielded a positive test result only for the P. aeruginosa spiked samples. Detection of 0-11 k bacteria in 30 μL samples was successfully completed in 1 h and compared with a conventional microbiological method. The presented method is a good candidate for a rapid, on-site, screening test that can result in a significant reduction in cost and analysis time compared to microbiological analyses routinely used in practice.
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Affiliation(s)
- Ismail Bilican
- Science and Technology Application and Research Center, Aksaray University, Aksaray, 68100, Turkey; UNAM-National Nanotechnology Research Center, Institute of Materials Science and Nanotechnology, Bilkent University, 06800, Ankara, Turkey
| | - Tolga Bahadir
- Department of Environmental Engineering, Faculty of Engineering, Aksaray University, Aksaray, 68100, Turkey
| | - Kemal Bilgin
- Department of Medical Microbiology, Medical School, Ondokuz Mayis University, Samsun, 55139, Turkey
| | - Mustafa Tahsin Guler
- UNAM-National Nanotechnology Research Center, Institute of Materials Science and Nanotechnology, Bilkent University, 06800, Ankara, Turkey; Department of Physics, Faculty of Art and Science, Kirikkale University, Kirikkale, 71450, Turkey.
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24
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Nath P, Kabir A, Khoubafarin Doust S, Kreais ZJ, Ray A. Detection of Bacterial and Viral Pathogens Using Photonic Point-of-Care Devices. Diagnostics (Basel) 2020; 10:diagnostics10100841. [PMID: 33086578 PMCID: PMC7603237 DOI: 10.3390/diagnostics10100841] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/05/2020] [Accepted: 10/15/2020] [Indexed: 12/15/2022] Open
Abstract
Infectious diseases caused by bacteria and viruses are highly contagious and can easily be transmitted via air, water, body fluids, etc. Throughout human civilization, there have been several pandemic outbreaks, such as the Plague, Spanish Flu, Swine-Flu, and, recently, COVID-19, amongst many others. Early diagnosis not only increases the chance of quick recovery but also helps prevent the spread of infections. Conventional diagnostic techniques can provide reliable results but have several drawbacks, including costly devices, lengthy wait time, and requirement of trained professionals to operate the devices, making them inaccessible in low-resource settings. Thus, a significant effort has been directed towards point-of-care (POC) devices that enable rapid diagnosis of bacterial and viral infections. A majority of the POC devices are based on plasmonics and/or microfluidics-based platforms integrated with mobile readers and imaging systems. These techniques have been shown to provide rapid, sensitive detection of pathogens. The advantages of POC devices include low-cost, rapid results, and portability, which enables on-site testing anywhere across the globe. Here we aim to review the recent advances in novel POC technologies in detecting bacteria and viruses that led to a breakthrough in the modern healthcare industry.
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25
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Abstract
Microscopes play an important role in the diagnosis of microorganisms and pathological lesions in ophthalmology guiding us to the appropriate management. The current trend of collecting samples and examination is mostly laboratory-based which consume time, labor, and are costly. Smartphones are being used in different fields of ophthalmology with great ubiquity. The good quality photographs obtained by smartphones along with the ease of mobility has made it possible to warrant its use in the microscopic world. This article describes a simple novel technique of preparing an intraocular lens system which can be used in conjunction with a smartphone to detect microorganisms and pathological lesions.
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Affiliation(s)
- Prithvi Chandrakanth
- General Ophthalmology, Dr. Chandrakanth Malabar Nethralaya, Kozhikode, Kerala, India
| | - K S Chandrakanth
- General Ophthalmology, Dr. Chandrakanth Malabar Nethralaya, Kozhikode, Kerala, India
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26
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Chern M, Garden PM, Baer RC, Galagan JE, Dennis AM. Transcription Factor Based Small‐Molecule Sensing with a Rapid Cell Phone Enabled Fluorescent Bead Assay. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007575] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Margaret Chern
- Division of Materials Science and Engineering Boston University Boston MA USA
| | - Padric M. Garden
- Department of Biomedical Engineering Boston University Boston MA USA
| | - R C. Baer
- Department of Microbiology Boston University Boston MA USA
| | - James E. Galagan
- Department of Biomedical Engineering Boston University Boston MA USA
- Department of Microbiology Boston University Boston MA USA
- National Emerging Infectious Diseases Laboratories Boston University Boston MA USA
| | - Allison M. Dennis
- Division of Materials Science and Engineering Boston University Boston MA USA
- Department of Biomedical Engineering Boston University Boston MA USA
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27
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Chern M, Garden PM, Baer RC, Galagan JE, Dennis AM. Transcription Factor Based Small-Molecule Sensing with a Rapid Cell Phone Enabled Fluorescent Bead Assay. Angew Chem Int Ed Engl 2020; 59:21597-21602. [PMID: 32945589 DOI: 10.1002/anie.202007575] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Indexed: 12/26/2022]
Abstract
Recently, allosteric transcription factors (TFs) were identified as a novel class of biorecognition elements for in vitro sensing, whereby an indicator of the differential binding affinity between a TF and its cognate DNA exhibits dose-dependent responsivity to an analyte. Described is a modular bead-based biosensor design that can be applied to such TF-DNA-analyte systems. DNA-functionalized beads enable efficient mixing and spatial separation, while TF-labeled semiconductor quantum dots serve as bright fluorescent indicators of the TF-DNA bound (on bead) and unbound states. The prototype sensor for derivatives of the antibiotic tetracycline exhibits nanomolar sensitivity with visual detection of bead fluorescence. Facile changes to the sensor enable sensor response tuning without necessitating changes to the biomolecular affinities. Assay components self-assemble, and readout by eye or digital camera is possible within 5 minutes of analyte addition, making sensor use facile, rapid, and instrument-free.
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Affiliation(s)
- Margaret Chern
- Division of Materials Science and Engineering, Boston University, Boston, MA, USA
| | - Padric M Garden
- Department of Biomedical Engineering, Boston University, Boston, MA, USA
| | - R C Baer
- Department of Microbiology, Boston University, Boston, MA, USA
| | - James E Galagan
- Department of Biomedical Engineering, Boston University, Boston, MA, USA.,Department of Microbiology, Boston University, Boston, MA, USA.,National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA, USA
| | - Allison M Dennis
- Division of Materials Science and Engineering, Boston University, Boston, MA, USA.,Department of Biomedical Engineering, Boston University, Boston, MA, USA
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28
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Severi C, Melnychuk N, Klymchenko AS. Smartphone-assisted detection of nucleic acids by light-harvesting FRET-based nanoprobe. Biosens Bioelectron 2020; 168:112515. [PMID: 32862092 DOI: 10.1016/j.bios.2020.112515] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/14/2020] [Accepted: 08/12/2020] [Indexed: 02/07/2023]
Abstract
Point-of-care assays for optical detection of biomolecular markers attract growing attention, because of their capacity to provide rapid and inexpensive diagnostics of cancer and infectious diseases. Here, we designed a nanoprobe compatible with a smartphone RGB camera for detection of nucleic acids. It is based on light-harvesting polymeric nanoparticles (NPs) encapsulating green fluorescent donor dyes that undergo efficient Förster Resonance Energy Transfer (FRET) to red fluorescent acceptor hybridized at the particle surface. Green-emitting NPs are based on rhodamine 110 and 6G dyes paired with bulky hydrophobic counterions, which prevent dye self-quenching and ensure efficient energy transfer. Their surface is functionalized with a capture DNA sequence for cancer marker survivin, hybridized with a short oligonucleotide bearing FRET acceptor ATTO647N. Obtained 40-nm poly(methyl methacrylate)-based NP probe, encapsulating octadecyl rhodamine 6G dyes with tetrakis(perfluoro-tert-butoxy)aluminate counterions (~6000 dyes per NP), and bearing 65 acceptors, shows efficient FRET with >20% quantum yield and a signal amplification (antenna effect) of 25. It exhibits ratiometric response to the target DNA by FRET acceptor displacement and enables DNA detection in solution by fluorescence spectroscopy (limit of detection 3 pM) and on surfaces at the single-particle level using two-color fluorescence microscopy. Using a smartphone RGB camera, the nanoprobe response can be readily detected at 10 pM target in true color and in red-to-green ratio images. Thus, our FRET-based nanoparticle biosensor enables detection of nucleic acid targets using a smartphone coupled to an appropriate optical setup, opening the way to simple and inexpensive point-of-care assays.
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Affiliation(s)
- Caterina Severi
- Laboratoire de Biophotonique et Pathologies, Faculté de Pharmacie, UMR 7021, CNRS, Université de Strasbourg, 74, Route du Rhin, 67401, Cedex, Illkirch, France
| | - Nina Melnychuk
- Laboratoire de Biophotonique et Pathologies, Faculté de Pharmacie, UMR 7021, CNRS, Université de Strasbourg, 74, Route du Rhin, 67401, Cedex, Illkirch, France
| | - Andrey S Klymchenko
- Laboratoire de Biophotonique et Pathologies, Faculté de Pharmacie, UMR 7021, CNRS, Université de Strasbourg, 74, Route du Rhin, 67401, Cedex, Illkirch, France.
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Aluminum foil as a substrate for metal enhanced fluorescence of bacteria labelled with quantum dots, shows very large enhancement and high contrast. SENSING AND BIO-SENSING RESEARCH 2020. [DOI: 10.1016/j.sbsr.2020.100332] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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30
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Razmi N, Hasanzadeh M, Willander M, Nur O. Recent Progress on the Electrochemical Biosensing of Escherichia coli O157:H7: Material and Methods Overview. BIOSENSORS 2020; 10:E54. [PMID: 32443629 PMCID: PMC7277213 DOI: 10.3390/bios10050054] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/11/2020] [Accepted: 05/13/2020] [Indexed: 01/21/2023]
Abstract
Escherichia coli O157:H7 (E. coli O157:H7) is a pathogenic strain of Escherichia coli which has issued as a public health threat because of fatal contamination of food and water. Therefore, accurate detection of pathogenic E. coli is important in environmental and food quality monitoring. In spite of their advantages and high acceptance, culture-based methods, enzyme-linked immunosorbent assays (ELISAs), polymerase chain reaction (PCR), flow cytometry, ATP bioluminescence, and solid-phase cytometry have various drawbacks, including being time-consuming, requiring trained technicians and/or specific equipment, and producing biological waste. Therefore, there is necessity for affordable, rapid, and simple approaches. Electrochemical biosensors have shown great promise for rapid food- and water-borne pathogen detection. Over the last decade, various attempts have been made to develop techniques for the rapid quantification of E. coli O157:H7. This review covers the importance of E. coli O157:H7 and recent progress (from 2015 to 2020) in the development of the sensitivity and selectivity of electrochemical sensors developed for E. coli O157:H7 using different nanomaterials, labels, and electrochemical transducers.
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Affiliation(s)
- Nasrin Razmi
- Physics and Electronics, Department of Sciences and Technology, Linköping University, SE-601 74 Norrköping, Sweden;
| | - Mohammad Hasanzadeh
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz 51664, Iran;
| | - Magnus Willander
- Physics and Electronics, Department of Sciences and Technology, Linköping University, SE-601 74 Norrköping, Sweden;
| | - Omer Nur
- Physics and Electronics, Department of Sciences and Technology, Linköping University, SE-601 74 Norrköping, Sweden;
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31
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Puiu M, Bala C. Microfluidics-integrated biosensing platforms as emergency tools for on-site field detection of foodborne pathogens. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115831] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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32
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Shrivastava S, Trung TQ, Lee NE. Recent progress, challenges, and prospects of fully integrated mobile and wearable point-of-care testing systems for self-testing. Chem Soc Rev 2020; 49:1812-1866. [PMID: 32100760 DOI: 10.1039/c9cs00319c] [Citation(s) in RCA: 207] [Impact Index Per Article: 51.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The rapid growth of research in the areas of chemical and biochemical sensors, lab-on-a-chip, mobile technology, and wearable electronics offers an unprecedented opportunity in the development of mobile and wearable point-of-care testing (POCT) systems for self-testing. Successful implementation of such POCT technologies leads to minimal user intervention during operation to reduce user errors; user-friendly, easy-to-use and simple detection platforms; high diagnostic sensitivity and specificity; immediate clinical assessment; and low manufacturing and consumables costs. In this review, we discuss recent developments in the field of highly integrated mobile and wearable POCT systems. In particular, aspects of sample handling platforms, recognition elements and sensing methods, and new materials for signal transducers and powering devices for integration into mobile or wearable POCT systems will be highlighted. We also summarize current challenges and future prospects for providing personal healthcare with sample-in result-out mobile and wearable POCT.
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Affiliation(s)
- Sajal Shrivastava
- School of Advanced Materials Science & Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 16419, Korea.
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33
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Inner filter effect in fluorescence spectroscopy: As a problem and as a solution. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2019. [DOI: 10.1016/j.jphotochemrev.2019.100318] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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34
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Niu L, Liu X, Ma Z, Yin Y, Sun L, Yang L, Zheng Y. Fungal keratitis: Pathogenesis, diagnosis and prevention. Microb Pathog 2019; 138:103802. [PMID: 31626916 DOI: 10.1016/j.micpath.2019.103802] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 10/12/2019] [Accepted: 10/12/2019] [Indexed: 02/08/2023]
Abstract
As a kind of serious, potentially sight-threatening corneal infections with poor prognosis, fungal keratitis can bring a heavy economic burden to patients and seriously affect the quality of life, especially those in developing countries where fungal keratitis is more prevalent. Typical clinical features include immune rings, satellite lesions, pseudopods, hypha moss, hypopyon and endothelial plaques. The ideal therapeutic effects could not be achieved by current treatments for many reasons. Therefore, under the current status, understanding the pathogenesis, early diagnosis and prevention strategies might be of great importance. Here, in this review, we discuss the recent progresses that may advance our understanding of pathogenesis, early diagnosis and prevention of fungal keratitis.
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Affiliation(s)
- Lingzhi Niu
- Eye Center, The Second Hospital of Jilin University, Changchun 130041, China
| | - Xin Liu
- Eye Center, The Second Hospital of Jilin University, Changchun 130041, China
| | - Zhiming Ma
- Department of Gastrointestinal Nutrition and Hernia Surgery, The Second Hospital of Jilin University, Changchun 130041, China
| | - Yuan Yin
- Eye Center, The Second Hospital of Jilin University, Changchun 130041, China
| | - Lixia Sun
- Department of Ophthalmology, Yanbian University Affiliated Hospital, Yanbian University, Yanji, 133000, China
| | - Longfei Yang
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130041, China.
| | - Yajuan Zheng
- Eye Center, The Second Hospital of Jilin University, Changchun 130041, China.
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35
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Alves IP, Reis NM. Microfluidic smartphone quantitation of Escherichia coli in synthetic urine. Biosens Bioelectron 2019; 145:111624. [PMID: 31546201 DOI: 10.1016/j.bios.2019.111624] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 08/20/2019] [Accepted: 08/21/2019] [Indexed: 10/26/2022]
Abstract
In spite of the clinical need, there is a major gap in rapid diagnostics for identification and quantitation of E. coli and other pathogens, also regarded as the biggest bottleneck in the fight against the spread of antimicrobial resistant bacterial strains. This study reports for the first time an optical, smartphone-based microfluidic fluorescence sandwich immunoassay capable of quantifying E. coli in buffer and synthetic urine in less than 25 min without sample preparation nor concentration. A limit of detection (LoD) up to 240 CFU/mL, comensurate with cut-off for UTIs (103-105 CFUs/mL) was achieved. Replicas of full response curves performed with 100-107 CFUs/mL of E. coli K12 in synthetic urine yielded recovery values in the range 80-120%, assay reproducibility below 30% and precision below 20%, therefore similar to high-performance automated immunoassays. The unrivalled LoD was mainly linked to the 'open fluidics' nature of the 10-bore microfluidic strips used that enabled passing a large volume of sample through the microcapillaries coated with capture antibody. The new smartphone based test has the potential of being as a rapid, point-of-care test for rule-in of E. coli infections that are responsible for around 80% of UTIs, helping to stop the over-prescription of antibiotics and the monitoring of patients with other symptomatic communicable diseases caused by E. coli at global scale.
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Affiliation(s)
- Isabel P Alves
- Department of Chemical Engineering, Loughborough University, Leicestershire, LE11 3TU, UK
| | - Nuno M Reis
- Centre for Biosensors, Bioelectronics and Biodevices (C3Bio), Department of Chemical Engineering, University of Bath, Bath, BA2 7AY, UK.
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36
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37
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Tran MV, Susumu K, Medintz IL, Algar WR. Supraparticle Assemblies of Magnetic Nanoparticles and Quantum Dots for Selective Cell Isolation and Counting on a Smartphone-Based Imaging Platform. Anal Chem 2019; 91:11963-11971. [DOI: 10.1021/acs.analchem.9b02853] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Michael V. Tran
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Kimihiro Susumu
- KeyW Corporation, Hanover, Maryland 21076, United States
- Optical Sciences Division, Code 5600, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
| | - Igor L. Medintz
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
| | - W. Russ Algar
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
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Amin Fatoni, Anggraeni MD, Dwiasi DW. Easy and Low-cost Chitosan Cryogel-based Colorimetric Biosensor for Detection of Glucose. JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1134/s1061934819090028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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39
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Stuart MB, McGonigle AJS, Willmott JR. Hyperspectral Imaging in Environmental Monitoring: A Review of Recent Developments and Technological Advances in Compact Field Deployable Systems. SENSORS 2019; 19:s19143071. [PMID: 31336796 PMCID: PMC6678368 DOI: 10.3390/s19143071] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 06/26/2019] [Accepted: 07/09/2019] [Indexed: 12/21/2022]
Abstract
The development and uptake of field deployable hyperspectral imaging systems within environmental monitoring represents an exciting and innovative development that could revolutionize a number of sensing applications in the coming decades. In this article we focus on the successful miniaturization and improved portability of hyperspectral sensors, covering their application both from aerial and ground-based platforms in a number of environmental application areas, highlighting in particular the recent implementation of low-cost consumer technology in this context. At present, these devices largely complement existing monitoring approaches, however, as technology continues to improve, these units are moving towards reaching a standard suitable for stand-alone monitoring in the not too distant future. As these low-cost and light-weight devices are already producing scientific grade results, they now have the potential to significantly improve accessibility to hyperspectral monitoring technology, as well as vastly proliferating acquisition of such datasets.
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Affiliation(s)
- Mary B Stuart
- Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield S1 4DE, UK
| | - Andrew J S McGonigle
- Department of Geography, University of Sheffield, Sheffield S10 2TN, UK
- School of Geosciences, The University of Sydney, Sydney, NSW 2006, Australia
- Faculty of Health, Engineering and Sciences, University of Southern Queensland, Toowoomba, QLD 4350, Australia
| | - Jon R Willmott
- Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield S1 4DE, UK.
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40
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A nanoneedle-based reactional wettability variation sensor array for on-site detection of metal ions with a smartphone. J Colloid Interface Sci 2019; 547:330-338. [PMID: 30974249 DOI: 10.1016/j.jcis.2019.04.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/01/2019] [Accepted: 04/04/2019] [Indexed: 12/22/2022]
Abstract
An enhancement of the reactional wettability variation (RWV) sensing strategy is achieved based on the wettability switch of a nanoneedle surface. The sensor unit is formed by coating hydrophobic azoimidazole compounds, as the responder compounds onto the originally hydrophilic surface of cobalt hydroxide nanoneedles. The complexation reaction between metal ions and azoimidazole ligands etches the hydrophobic coating and switches the surface wettability, making the surface hydrophilic again. This switch is revealed by a decrease in the static contact angle (CA) and an increase in the sliding angle of the surface. The reactivity is tuned by the derivatization and conformational manipulation of the azoimidazole compounds. A sensor array composed of six as-tuned sensor units is constructed to distinguish among the species and concentrations of Fe3+, Ni2+ and La3+ at a low limit of 10-6 M using the chemometric method of principal component analysis (PCA). In addition, a new on-site detection strategy is developed based on PCA of the sliding angle, which can be measured conveniently and swiftly with a smartphone app and a commercially available setup. The application of the general RWV strategy is envisioned to open new possibilities for on-site detection.
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41
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Yousefi H, Su HM, Imani SM, Alkhaldi K, M. Filipe CD, Didar TF. Intelligent Food Packaging: A Review of Smart Sensing Technologies for Monitoring Food Quality. ACS Sens 2019; 4:808-821. [PMID: 30864438 DOI: 10.1021/acssensors.9b00440] [Citation(s) in RCA: 195] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Food safety is a major factor affecting public health and the well-being of society. A possible solution to control food-borne illnesses is through real-time monitoring of the food quality throughout the food supply chain. The development of emerging technologies, such as active and intelligent packaging, has been greatly accelerated in recent years, with a focus on informing consumers about food quality. Advances in the fields of sensors and biosensors has enabled the development of new materials, devices, and multifunctional sensing systems to monitor the quality of food. In this Review, we place the focus on an in-depth summary of the recent technological advances that hold the potential for being incorporated into food packaging to ensure food quality, safety, or monitoring of spoilage. These advanced sensing systems usually target monitoring gas production, humidity, temperature, and microorganisms' growth within packaged food. The implementation of portable and simple-to-use hand-held devices is also discussed in this Review. We highlight the mechanical and optical properties of current materials and systems, along with various limitations associated with each device. The technologies discussed here hold great potential for applications in food packaging and bring us one step closer to enable real-time monitoring of food throughout the supply chain.
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Affiliation(s)
- Hanie Yousefi
- Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, Ontario M5S 3M2, Canada
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42
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Feasibility study of smartphone-based Near Infrared Spectroscopy (NIRS) for salted minced meat composition diagnostics at different temperatures. Food Chem 2019; 278:314-321. [DOI: 10.1016/j.foodchem.2018.11.054] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 10/30/2018] [Accepted: 11/09/2018] [Indexed: 11/21/2022]
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43
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Bhardwaj N, Bhardwaj SK, Bhatt D, Lim DK, Kim KH, Deep A. Optical detection of waterborne pathogens using nanomaterials. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.02.019] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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44
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Abstract
Cell phones show considerable promise for point-of-care (POC) diagnostic procedures because they are accessible, connected, and computationally powerful. Cell phone image processing methods are being developed for the detection and quantification of a wide range of targets, employing methods from microscopy to fluorescence techniques. However, most of the lab-based biological and biochemical assays still lack a robust and repeatable cell phone analogue. Existing solutions require external smartphone hardware to obtain quantitative results, imposing a design tradeoff between accessibility and accuracy. Here, we develop a cell phone imaging algorithm that enables analysis of assays that would typically be evaluated via spectroscopy. The developed technique uses the saturation parameter of hue-saturation-value color space to enable POC diagnosis. Through the analysis of over 10 000 images, we show that the saturation method consistently outperforms existing algorithms under a wide range of operating field conditions. The performance improvement is also proven analytically via the mathematic relationship between the saturation method and existing techniques. The method presented here is a step forward towards the development of POC diagnostics by reducing the required equipment, improving the limit of detection (LOD), and increasing the precision of quantitative results.
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Affiliation(s)
- Benjamin Coleman
- Asghar-Lab, Micro and Nanotechnology in Medicine, College of Engineering and Computer Science, Boca Raton, FL 33431, USA.
| | - Chad Coarsey
- Department of Computer & Electrical Engineering and Computer Science, Florida Atlantic University, Boca Raton, FL 33431, USA
| | - Waseem Asghar
- Asghar-Lab, Micro and Nanotechnology in Medicine, College of Engineering and Computer Science, Boca Raton, FL 33431, USA. and Department of Computer & Electrical Engineering and Computer Science, Florida Atlantic University, Boca Raton, FL 33431, USA and Department of Biological Sciences, Florida Atlantic University, Boca Raton, FL 33431, USA
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45
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Snow JW, Ceylan Koydemir H, Karinca DK, Liang K, Tseng D, Ozcan A. Rapid imaging, detection, and quantification of Nosema ceranae spores in honey bees using mobile phone-based fluorescence microscopy. LAB ON A CHIP 2019; 19:789-797. [PMID: 30719512 DOI: 10.1039/c8lc01342j] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Recent declines in honey bee colonies in the United States have put increased strain on agricultural pollination. Nosema ceranae and Nosema apis, are microsporidian parasites that are highly pathogenic to honey bees and have been implicated as a factor in honey bee losses. While traditional methods for quantifying Nosema infection have high sensitivity and specificity, there is no field-portable device for field measurements by beekeepers. Here we present a field-portable and cost-effective smartphone-based platform for detection and quantification of chitin-positive Nosema spores in honey bees. The handheld platform, weighing only 374 g, consists of a smartphone-based fluorescence microscope, a custom-developed smartphone application, and an easy to perform sample preparation protocol. We tested the performance of the platform using samples at different parasite concentrations and compared the method with manual microscopic counts and qPCR quantification. We demonstrated that this device provides results that are comparable with other methods, having a limit of detection of 0.5 × 106 spores per bee. Thus, the assay can easily identify infected colonies and provide accurate quantification of infection levels requiring treatment of infection, suggesting that this method is potentially adaptable for diagnosis of Nosema infection in the field by beekeepers. Coupled with treatment recommendations, this protocol and smartphone-based optical platform could improve the diagnosis and treatment of nosemosis in bees and provide a powerful proof-of-principle for the use of such mobile diagnostics as useful analytical tools for beekeepers in resource-limited settings.
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Affiliation(s)
- Jonathan W Snow
- Department of Biology, Barnard College, New York, NY 10027, USA.
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46
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Vietz C, Schütte ML, Wei Q, Richter L, Lalkens B, Ozcan A, Tinnefeld P, Acuna GP. Benchmarking Smartphone Fluorescence-Based Microscopy with DNA Origami Nanobeads: Reducing the Gap toward Single-Molecule Sensitivity. ACS OMEGA 2019; 4:637-642. [PMID: 30775643 PMCID: PMC6372172 DOI: 10.1021/acsomega.8b03136] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 12/24/2018] [Indexed: 05/18/2023]
Abstract
Smartphone-based fluorescence microscopy has been rapidly developing over the last few years, enabling point-of-need detection of cells, bacteria, viruses, and biomarkers. These mobile microscopy devices are cost-effective, field-portable, and easy to use, and benefit from economies of scale. Recent developments in smartphone camera technology have improved their performance, getting closer to that of lab microscopes. Here, we report the use of DNA origami nanobeads with predefined numbers of fluorophores to quantify the sensitivity of a smartphone-based fluorescence microscope in terms of the minimum number of detectable molecules per diffraction-limited spot. With the brightness of a single dye molecule as a reference, we compare the performance of color and monochrome sensors embedded in state-of-the-art smartphones. Our results show that the monochrome sensor of a smartphone can achieve better sensitivity, with a detection limit of ∼10 fluorophores per spot. The use of DNA origami nanobeads to quantify the minimum number of detectable molecules of a sensor is broadly applicable to evaluate the sensitivity of various optical instruments.
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Affiliation(s)
- Carolin Vietz
- Institute
for Physical & Theoretical Chemistry, Braunschweig Integrated
Centre of Systems Biology (BRICS), and Laboratory for Emerging Nanometrology
(LENA), Braunschweig University of Technology, Rebenring 56, 38106 Braunschweig, Germany
| | - Max L. Schütte
- Institute
for Physical & Theoretical Chemistry, Braunschweig Integrated
Centre of Systems Biology (BRICS), and Laboratory for Emerging Nanometrology
(LENA), Braunschweig University of Technology, Rebenring 56, 38106 Braunschweig, Germany
| | - Qingshan Wei
- Department
of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Lars Richter
- Institute
for Physical & Theoretical Chemistry, Braunschweig Integrated
Centre of Systems Biology (BRICS), and Laboratory for Emerging Nanometrology
(LENA), Braunschweig University of Technology, Rebenring 56, 38106 Braunschweig, Germany
| | - Birka Lalkens
- Department
Chemie and Center for NanoScience, Ludwig-Maximilians-Universitaet
Muenchen, Butenandtstr.
5-13 Haus E, 81377 Muenchen, Germany
| | - Aydogan Ozcan
- Electrical
& Computer Engineering Department, Bioengineering Department,
California NanoSystems Institute (CNSI), and Department of Surgery, University of California, Los Angeles, Los Angeles, California 90095, United States
- E-mail: . Tel: +1 310 825 0915 (A.O.)
| | - Philip Tinnefeld
- Department
Chemie and Center for NanoScience, Ludwig-Maximilians-Universitaet
Muenchen, Butenandtstr.
5-13 Haus E, 81377 Muenchen, Germany
- E-mail: . Tel: +49 89 2180 77549. Fax: +49 89 2180 77548 (P.T.)
| | - Guillermo P. Acuna
- Institute
for Physical & Theoretical Chemistry, Braunschweig Integrated
Centre of Systems Biology (BRICS), and Laboratory for Emerging Nanometrology
(LENA), Braunschweig University of Technology, Rebenring 56, 38106 Braunschweig, Germany
- Department
of Physics, University of Fribourg, Chemin du Musée 3, Fribourg CH-1700, Switzerland
- E-mail: . Tel: +41 26 300 9631. Fax: +41 26 300 9030 (G.P.A.)
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Dey P, Fabri-Faja N, Calvo-Lozano O, Terborg RA, Belushkin A, Yesilkoy F, Fàbrega A, Ruiz-Rodriguez JC, Ferrer R, González-López JJ, Estévez MC, Altug H, Pruneri V, Lechuga LM. Label-free Bacteria Quantification in Blood Plasma by a Bioprinted Microarray Based Interferometric Point-of-Care Device. ACS Sens 2019; 4:52-60. [PMID: 30525470 DOI: 10.1021/acssensors.8b00789] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Existing clinical methods for bacteria detection lack speed, sensitivity, and, importantly, point-of-care (PoC) applicability. Thus, finding ways to push the sensitivity of clinical PoC biosensing technologies is crucial. Here we report a portable PoC device based on lens-free interferometric microscopy (LIM). The device employs high performance nanoplasmonics and custom bioprinted microarrays and is capable of direct label-free bacteria ( E. coli) quantification. With only one-step sample handling we offer a sample-to-data turnaround time of 40 min. Our technology features detection sensitivity of a single bacterial cell both in buffer and in diluted blood plasma and is intrinsically limited by the number of cells present in the detection volume. When employed in a hospital setting, the device has enabled accurate categorization of sepsis patients (infectious SIRS) from control groups (healthy individuals and noninfectious SIRS patients) without false positives/negatives. User-friendly on-site bacterial clinical diagnosis can thus become a reality.
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Affiliation(s)
- Priyanka Dey
- Nanobiosensors and Bioanalytical Applications Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, CIBER-BBN, and BIST, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Nuria Fabri-Faja
- Nanobiosensors and Bioanalytical Applications Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, CIBER-BBN, and BIST, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Olalla Calvo-Lozano
- Nanobiosensors and Bioanalytical Applications Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, CIBER-BBN, and BIST, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Roland A. Terborg
- ICFO−Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
| | - Alexander Belushkin
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
| | - Filiz Yesilkoy
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
| | - Anna Fàbrega
- Department of Clinical Microbiology, Hospital Universitari Vall d’Hebron, Vall d’Hebron Institut de Recerca, Universitat Autònoma de Barcelona and REIPI, 08035 Barcelona, Spain
| | - Juan Carlos Ruiz-Rodriguez
- Intensive Care Department, Vall d’Hebron University Hospital. Shock, Organ Dysfunction and Resuscitation Research Group, Vall d’Hebron Institut de Recerca, 08035 Barcelona, Spain
| | - Ricard Ferrer
- Intensive Care Department, Vall d’Hebron University Hospital. Shock, Organ Dysfunction and Resuscitation Research Group, Vall d’Hebron Institut de Recerca, 08035 Barcelona, Spain
| | - Juan José González-López
- Department of Clinical Microbiology, Hospital Universitari Vall d’Hebron, Vall d’Hebron Institut de Recerca, Universitat Autònoma de Barcelona and REIPI, 08035 Barcelona, Spain
| | - Maria Carmen Estévez
- Nanobiosensors and Bioanalytical Applications Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, CIBER-BBN, and BIST, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Hatice Altug
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
| | - Valerio Pruneri
- ICFO−Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
- ICREA—Institució Catalana de Recerca i Estudis Avançats, 08010 Barcelona, Spain
| | - Laura M. Lechuga
- Nanobiosensors and Bioanalytical Applications Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, CIBER-BBN, and BIST, Campus UAB, 08193 Bellaterra, Barcelona, Spain
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48
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Chern M, Kays JC, Bhuckory S, Dennis AM. Sensing with photoluminescent semiconductor quantum dots. Methods Appl Fluoresc 2019; 7:012005. [PMID: 30530939 PMCID: PMC7233465 DOI: 10.1088/2050-6120/aaf6f8] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Fluorescent sensors benefit from high signal-to-noise and multiple measurement modalities, enabling a multitude of applications and flexibility of design. Semiconductor nanocrystal quantum dots (QDs) are excellent fluorophores for sensors because of their extraordinary optical properties. They have high thermal and photochemical stability compared to organic dyes or fluorescent proteins and are extremely bright due to their large molar cross-sections. In contrast to organic dyes, QD emission profiles are symmetric, with relatively narrow bandwidths. In addition, the size tunability of their emission color, which is a result of quantum confinement, make QDs exceptional emitters with high color purity from the ultra-violet to near infrared wavelength range. The role of QDs in sensors ranges from simple fluorescent tags, as used in immunoassays, to intrinsic sensors that utilize the inherent photophysical response of QDs to fluctuations in temperature, electric field, or ion concentration. In more complex configurations, QDs and biomolecular recognition moieties like antibodies are combined with a third component to modulate the optical signal via energy transfer. QDs can act as donors, acceptors, or both in energy transfer-based sensors using Förster resonance energy transfer (FRET), nanometal surface energy transfer (NSET), or charge or electron transfer. The changes in both spectral response and photoluminescent lifetimes have been successfully harnessed to produce sensitive sensors and multiplexed devices. While technical challenges related to biofunctionalization and the high cost of laboratory-grade fluorimeters have thus far prevented broad implementation of QD-based sensing in clinical or commercial settings, improvements in bioconjugation methods and detection schemes, including using simple consumer devices like cell phone cameras, are lowering the barrier to broad use of more sensitive QD-based devices.
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Affiliation(s)
- Margaret Chern
- Department of Materials Science and Engineering, Boston University, Boston, United States of America
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49
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Markwalter C, Kantor AG, Moore CP, Richardson KA, Wright DW. Inorganic Complexes and Metal-Based Nanomaterials for Infectious Disease Diagnostics. Chem Rev 2019; 119:1456-1518. [PMID: 30511833 PMCID: PMC6348445 DOI: 10.1021/acs.chemrev.8b00136] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Indexed: 12/12/2022]
Abstract
Infectious diseases claim millions of lives each year. Robust and accurate diagnostics are essential tools for identifying those who are at risk and in need of treatment in low-resource settings. Inorganic complexes and metal-based nanomaterials continue to drive the development of diagnostic platforms and strategies that enable infectious disease detection in low-resource settings. In this review, we highlight works from the past 20 years in which inorganic chemistry and nanotechnology were implemented in each of the core components that make up a diagnostic test. First, we present how inorganic biomarkers and their properties are leveraged for infectious disease detection. In the following section, we detail metal-based technologies that have been employed for sample preparation and biomarker isolation from sample matrices. We then describe how inorganic- and nanomaterial-based probes have been utilized in point-of-care diagnostics for signal generation. The following section discusses instrumentation for signal readout in resource-limited settings. Next, we highlight the detection of nucleic acids at the point of care as an emerging application of inorganic chemistry. Lastly, we consider the challenges that remain for translation of the aforementioned diagnostic platforms to low-resource settings.
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Affiliation(s)
| | | | | | | | - David W. Wright
- Department of Chemistry, Vanderbilt
University, Nashville, Tennessee 37235, United States
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50
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Keçili R, Büyüktiryaki S, Hussain CM. Advancement in bioanalytical science through nanotechnology: Past, present and future. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2018.11.012] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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