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Savas S, Saricam M. Rapid method for detection of Vibrio cholerae from drinking water with nanomaterials enhancing electrochemical biosensor. J Microbiol Methods 2024; 216:106862. [PMID: 38030087 DOI: 10.1016/j.mimet.2023.106862] [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: 05/25/2023] [Revised: 11/11/2023] [Accepted: 11/22/2023] [Indexed: 12/01/2023]
Abstract
Cholera is a potentially fatal diarrheal disease caused by Vibrio cholerae and is spread to humans from contaminated food and water. In order to prevent spread of epidemic chlorea, the development of novel sensitive, selective, user-friendly, cost-effective and rapid detection systems to detect of V. cholerae are necessary. Therefore, in this study, it was aimed to develop a specific, electrochemical immunoassay with high selectivitiy and sensitivity for detection of V. cholerae from drinking water using in house synthesized Gold Nanoparticles (AuNPs). The synthesized AuNPs were characterized by UV/Vis spectroscopy, Dynamic Light Scattering (DLS) and Atomic Force Microscopy (AFM) and electrochemical techniques were applied to confirm the succesful fabrication of the immunosensor. Also, this study focuses on the development of an antibody sensor for V. cholerae detection using a standard immunoassay without using nanoparticle. To accomplish that, in house spherical synthesized AuNPs at various sizes were synthesized, conjugated with secondary antibody-horseradish peroxidase enzyme (HRP) complex and their possible effect on the lowest detection limit of V. cholerae was investigated in comparison to commercially available AuNPs. The AuNPs-immunosensor on the results enabled the quantification of V. cholerae in a wide concentration range with a high sensitivity limit of detection (1 Colony-Forming Units/Milliliter) and specificity. Although the effect of 33 and 54 nm AuNPs on the process is close to each other, it has been observed that there is a 34% loss of efficiency when the size of the nanoparticle increases. With this study, a novel V. cholerae specific immunosensor was developed and the effects of in house synthesized AuNPs with various diameter on this developed biosensor were investigated in detail.
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Affiliation(s)
- Sumeyra Savas
- Bandirma Onyedi Eylul University, Medical School, Department of Clinical Microbiology, Bandirma, Balikesir, Turkey.
| | - Melike Saricam
- TUBITAK Marmara Research Center, Life Sciences Vice Presidency, CBRN Defense Technologies Research Group, Kocaeli, Turkey.
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Huang X, Fu R, Qiao S, Zhang J, Xianyu Y. Nanotechnology-based diagnostic methods for coronavirus: From nucleic acid extraction to amplification. BIOSENSORS & BIOELECTRONICS: X 2023; 13:100289. [PMID: 36530849 PMCID: PMC9733970 DOI: 10.1016/j.biosx.2022.100289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/25/2022] [Accepted: 12/03/2022] [Indexed: 12/13/2022]
Abstract
The recent emergence of human coronaviruses (CoVs) causing severe acute respiratory syndrome (SARS) is posing a great threat to global public health. Therefore, the rapid and accurate identification of pathogenic viruses plays a vital role in selecting appropriate treatments, saving people's lives and preventing epidemics. Nucleic acids, including deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), are natural biopolymers composed of nucleotides that store, transmit, and express genetic information. Applications of nucleic acid detection range from genotyping and genetic prognostics, to expression profiling and detection of infectious disease. The nucleic acid detection for infectious diseases is widely used, as evidenced by the widespread use of COVID-19 tests for the containment of the pandemic. Nanotechnology influences all medical disciplines and has been considered as an essential tool for novel diagnostics, nanotherapeutics, vaccines, medical imaging, and the utilization of biomaterials for regenerative medicine. In this review, the recent advances in the development of nanotechnology-based diagnostic methods for coronavirus, and their applications in nucleic acid detection are discussed in detail. The techniques for the amplification of nucleic acids are summarized, as well as the use of magnetic nanoparticles for nucleic acid extraction. Besides, current challenges and future prospects are proposed, along with the great potential of nanotechnology for the effective diagnosis of coronavirus.
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Affiliation(s)
- Xucheng Huang
- Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Ruijie Fu
- Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Sai Qiao
- Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Jun Zhang
- Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Yunlei Xianyu
- Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
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AlMalki FA, Albukhaty S, Alyamani AA, Khalaf MN, Thomas S. The relevant information about the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) using the five-question approach (when, where, what, why, and how) and its impact on the environment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:61430-61454. [PMID: 35175517 PMCID: PMC8852932 DOI: 10.1007/s11356-022-18868-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 01/21/2022] [Indexed: 05/08/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is regarded as a threat because it spreads quickly across the world without requiring a passport or establishing an identity. This tiny virus has wreaked havoc on people's lives, killed people, and created psychological problems all over the world. The viral spike protein (S) significantly contributes to host cell entry, and mutations associated with it, particularly in the receptor-binding protein (RBD), either facilitate the escape of virus from neutralizing antibodies or enhance its transmission by increasing the affinity for cell entry receptor, angiotensin-converting enzyme 2 (ACE2). The initial variants identified in Brazil, South Africa, and the UK have spread to various countries. On the other hand, new variants are being detected in India and the USA. The viral genome and proteome were applied for molecular detection techniques, and nanotechnology particles and materials were utilized in protection and prevention strategies. Consequently, the SARS-CoV-2 pandemic has resulted in extraordinary scientific community efforts to develop detection methods, diagnosis tools, and effective antiviral drugs and vaccines, where prevailing academic, governmental, and industrial institutions and organizations continue to engage themselves in large-scale screening of existing drugs, both in vitro and in vivo. In addition, COVID-19 pointed on the possible solutions for the environmental pollution globe problem. Therefore, this review aims to address SARS-CoV-2, its transmission, where it can be found, why it is severe in some people, how it can be stopped, its diagnosis and detection techniques, and its relationship with the environment.
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Affiliation(s)
- Faizah A AlMalki
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Kingdom of Saudi Arabia.
| | - Salim Albukhaty
- Deptartment of Chemistry, College of Science, University of Misan, Maysan, 62001, Iraq
| | - Amal A Alyamani
- Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Kingdom of Saudi Arabia
| | - Moayad N Khalaf
- Deptartment of Chemistry, College of Science, University of Basrah, Basrah, Iraq
| | - Sabu Thomas
- Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala, 686 560, India
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Yadav SK, Yadav RD, Tabassum H, Arya M. Recent Developments in Nanotechnology-Based Biosensors for the Diagnosis of Coronavirus. PLASMONICS (NORWELL, MASS.) 2023; 18:955-969. [PMID: 37229148 PMCID: PMC10040920 DOI: 10.1007/s11468-023-01822-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 03/08/2023] [Indexed: 05/27/2023]
Abstract
The major challenge in today's world is that medical research is facing the existence of a vast number of viruses and their mutations, which from time to time cause outbreaks. Also, the continuous and spontaneous mutations occurring in the viruses and the emergence of resistant virus strains have become serious medical hazards. So, in view of the growing number of diseases, like the recent COVID-19 pandemic that has caused the deaths of millions of people, there is a need to improve rapid and sensitive diagnostic strategies to initiate timely treatment for such conditions. In the cases like COVID-19, where a real cure due to erratic and ambiguous signs is not available, early intervention can be life-saving. In the biomedical and pharmaceutical industries, nanotechnology has evolved exponentially and can overcome multiple obstacles in the treatment and diagnosis of diseases. Nanotechnology has developed exponentially in the biomedical and pharmaceutical fields and can overcome numerous challenges in the treatment and diagnosis of diseases. At the nano stage, the molecular properties of materials such as gold, silver, carbon, silica, and polymers get altered and can be used for the creation of reliable and accurate diagnostic techniques. This review provides insight into numerous diagnostic approaches focused on nanoparticles that could have been established for quick and early detection of such diseases.
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Affiliation(s)
- Sarita K. Yadav
- Department of Pharmacy, MLN Medical College, Prayagraj, Uttar Pradesh India
| | - Rahul Deo Yadav
- Department of Pharmacy, MLN Medical College, Prayagraj, Uttar Pradesh India
| | - Heena Tabassum
- Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Pune, Maharashtra India
| | - Malti Arya
- Department of Pharmaceutics, Chandra Shekhar Singh College of Pharmacy, Uttar Pradesh Kaushambi, India
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Sharma S, Shrivastava S, Kausley SB, Rai B, Pandit AB. Coronavirus: a comparative analysis of detection technologies in the wake of emerging variants. Infection 2023; 51:1-19. [PMID: 35471631 PMCID: PMC9038995 DOI: 10.1007/s15010-022-01819-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 03/30/2022] [Indexed: 01/31/2023]
Abstract
An outbreak of the coronavirus disease caused by a novel pathogen created havoc and continues to affect the entire world. As the pandemic progressed, the scientific community was faced by the limitations of existing diagnostic methods. In this review, we have compared the existing diagnostic techniques such as reverse transcription polymerase chain reaction (RT-PCR), antigen and antibody detection, computed tomography scan, etc. and techniques in the research phase like microarray, artificial intelligence, and detection using novel materials; on the prospect of sample preparation, detection procedure (qualitative/quantitative), detection time, screening efficiency, cost-effectiveness, and ability to detect different variants. A detailed comparison of different techniques showed that RT-PCR is still the most widely used and accepted coronavirus detection method despite certain limitations (single gene targeting- in context to mutations). New methods with similar efficiency that could overcome the limitations of RT-PCR may increase the speed, simplicity, and affordability of diagnosis. In addition to existing devices, we have also discussed diagnostic devices in the research phase showing high potential for clinical use. Our approach would be of enormous benefit in selecting a diagnostic device under a given scenario, which would ultimately help in controlling the current pandemic caused by the coronavirus, which is still far from over with new variants emerging.
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Affiliation(s)
- Shagun Sharma
- Department of Zoology, University of Rajasthan, JLN Marg, Jaipur, 302004, India
| | - Surabhi Shrivastava
- Physical Sciences Research Area, TCS Research, Tata Research Development and Design Centre, Tata Consultancy Services Limited, Pune, 411013, India
| | - Shankar B Kausley
- Physical Sciences Research Area, TCS Research, Tata Research Development and Design Centre, Tata Consultancy Services Limited, Pune, 411013, India.
| | - Beena Rai
- Physical Sciences Research Area, TCS Research, Tata Research Development and Design Centre, Tata Consultancy Services Limited, Pune, 411013, India
| | - Aniruddha B Pandit
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai, 400019, India
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Ahmed FK, Alghuthaymi MA, Abd-Elsalam KA, Ravichandran M, Kalia A. Nano-Based Robotic Technologies for Plant Disease Diagnosis. NANOROBOTICS AND NANODIAGNOSTICS IN INTEGRATIVE BIOLOGY AND BIOMEDICINE 2023:327-359. [DOI: 10.1007/978-3-031-16084-4_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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7
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Cheng H, Li Z. Advances and Perspectives of Pharmaceutical Nanotechnology in mRNA therapy. Pharm Nanotechnol 2022; 10:PNT-EPUB-125850. [PMID: 36028972 DOI: 10.2174/2211738510666220825145124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/26/2022] [Accepted: 04/26/2022] [Indexed: 11/22/2022]
Affiliation(s)
- Hui Cheng
- Nankai University School of Medicine, Tianjin 300071, China
| | - Zongjin Li
- Nankai University School of Medicine, Tianjin 300071, China
- The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, College of Life Sciences, Tianjin 300071, China
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8
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Nanotechnology Role Development for COVID-19 Pandemic Management. JOURNAL OF NANOTECHNOLOGY 2022. [DOI: 10.1155/2022/1872933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The global outbreak of coronavirus disease has sent an ominous message to the field of innovative and advanced technology research and development (COVID-19). To accomplish this, convectional technology and recent discoveries can be combined, or new research directions can be opened up using nanotechnology. Nanotechnology can be used to prevent, diagnose, and treat SARS-CoV-2 infection. As the pandemic spreads, a thorough examination of nanomaterials' role in pandemic response is highly desirable. According to this comprehensive review article, nanotechnology can be used to prevent, diagnose, and treat COVID-19. This research will be extremely useful during the COVID-19 outbreak in terms of developing rules for designing nanostructure materials to combat the outbreak.
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Rasmi Y, Saloua KS, Nemati M, Choi JR. Recent Progress in Nanotechnology for COVID-19 Prevention, Diagnostics and Treatment. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1788. [PMID: 34361174 PMCID: PMC8308319 DOI: 10.3390/nano11071788] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 06/29/2021] [Accepted: 06/30/2021] [Indexed: 12/16/2022]
Abstract
The COVID-19 pandemic is currently an unprecedented public health threat. The rapid spread of infections has led to calls for alternative approaches to combat the virus. Nanotechnology is taking root against SARS-CoV-2 through prevention, diagnostics and treatment of infections. In light of the escalating demand for managing the pandemic, a comprehensive review that highlights the role of nanomaterials in the response to the pandemic is highly desirable. This review article comprehensively discusses the use of nanotechnology for COVID-19 based on three main categories: prevention, diagnostics and treatment. We first highlight the use of various nanomaterials including metal nanoparticles, carbon-based nanoparticles and magnetic nanoparticles for COVID-19. We critically review the benefits of nanomaterials along with their applications in personal protective equipment, vaccine development, diagnostic device fabrication and therapeutic approaches. The remaining key challenges and future directions of nanomaterials for COVID-19 are briefly discussed. This review is very informative and helpful in providing guidance for developing nanomaterial-based products to fight against COVID-19.
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Affiliation(s)
- Yousef Rasmi
- Department of Biochemistry, Faculty of Medicine, Urmia University of Medical Sciences, Urmia 5714783734, Iran;
- Cellular and Molecular Research Center, Urmia University of Medical Sciences, Urmia 5714783734, Iran
| | - Kouass Sahbani Saloua
- Department of Nuclear Medicine & Radiobiology, Faculty of Medicine, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada;
| | - Mahdieh Nemati
- Department of Medical Nanotechnology, Faculty of Advanced Medical Science, Tabriz University of Medical Sciences, Tabriz 5154853431, Iran;
| | - Jane Ru Choi
- Department of Mechanical Engineering, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
- Centre for Blood Research, Life Sciences Centre, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
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10
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Goud KY, Reddy KK, Khorshed A, Kumar VS, Mishra RK, Oraby M, Ibrahim AH, Kim H, Gobi KV. Electrochemical diagnostics of infectious viral diseases: Trends and challenges. Biosens Bioelectron 2021; 180:113112. [PMID: 33706158 PMCID: PMC7921732 DOI: 10.1016/j.bios.2021.113112] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/06/2021] [Accepted: 02/22/2021] [Indexed: 02/07/2023]
Abstract
Infectious diseases caused by viruses can elevate up to undesired pandemic conditions affecting the global population and normal life function. These in turn impact the established world economy, create jobless situations, physical, mental, emotional stress, and challenge the human survival. Therefore, timely detection, treatment, isolation and prevention of spreading the pandemic infectious diseases not beyond the originated town is critical to avoid global impairment of life (e.g., Corona virus disease - 2019, COVID-19). The objective of this review article is to emphasize the recent advancements in the electrochemical diagnostics of twelve life-threatening viruses namely - COVID-19, Middle east respiratory syndrome (MERS), Severe acute respiratory syndrome (SARS), Influenza, Hepatitis, Human immunodeficiency virus (HIV), Human papilloma virus (HPV), Zika virus, Herpes simplex virus, Chikungunya, Dengue, and Rotavirus. This review describes the design, principle, underlying rationale, receptor, and mechanistic aspects of sensor systems reported for such viruses. Electrochemical sensor systems which comprised either antibody or aptamers or direct/mediated electron transfer in the recognition matrix were explicitly segregated into separate sub-sections for critical comparison. This review emphasizes the current challenges involved in translating laboratory research to real-world device applications, future prospects and commercialization aspects of electrochemical diagnostic devices for virus detection. The background and overall progress provided in this review are expected to be insightful to the researchers in sensor field and facilitate the design and fabrication of electrochemical sensors for life-threatening viruses with broader applicability to any desired pathogens.
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Affiliation(s)
- K Yugender Goud
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, 92093, USA.
| | - K Koteshwara Reddy
- Smart Living Innovation Technology Centre, Department of Energy Science and Technology, Myongji University, Yongin, Gyeonggi-do, 17058, Republic of Korea.
| | - Ahmed Khorshed
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Sohag University, Sohag, 82524, Egypt.
| | - V Sunil Kumar
- Department of Chemistry, National Institute of Technology Warangal, Telangana, 506004, India
| | - Rupesh K Mishra
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Mohamed Oraby
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Sohag University, Sohag, 82524, Egypt
| | - Alyaa Hatem Ibrahim
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Sohag University, Sohag, 82524, Egypt
| | - Hern Kim
- Smart Living Innovation Technology Centre, Department of Energy Science and Technology, Myongji University, Yongin, Gyeonggi-do, 17058, Republic of Korea.
| | - K Vengatajalabathy Gobi
- Department of Chemistry, National Institute of Technology Warangal, Telangana, 506004, India.
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Li C, Zhao C, Bao J, Tang B, Wang Y, Gu B. Laboratory diagnosis of coronavirus disease-2019 (COVID-19). Clin Chim Acta 2020; 510:35-46. [PMID: 32621814 PMCID: PMC7329657 DOI: 10.1016/j.cca.2020.06.045] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 06/28/2020] [Accepted: 06/29/2020] [Indexed: 02/06/2023]
Abstract
The outbreak of Coronavirus Disease-2019 (COVID-19) caused by Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) has threatened health worldwide. As of the end of 2020, there were nearly 10 million confirmed cases and nearly 5 million deaths associated with COVID-19. Rapid and early laboratory diagnosis of COVID-19 is the main focus of treatment and control. Molecular tests are the basis for confirmation of COVID-19, but serological tests for SARS-CoV-2 are widely available and play an increasingly important role in understanding the epidemiology of the virus and in identifying populations at higher risk for infection. Point-of-care tests have the advantage of rapid, accurate, portable, low cost and non-specific device requirements, which provide great help for disease diagnosis and detection. This review will discuss the performance of different laboratory diagnostic tests and platforms, as well as suitable clinical samples for testing, and related biosafety protection. This review shall guide for the diagnosis of COVID-19 caused by SARS-CoV-2.
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Affiliation(s)
- Chenxi Li
- Medical Technology School of Xuzhou Medical University, Xuzhou Key Laboratory of Laboratory Diagnostics, Xuzhou 221004, China
| | - Chengxue Zhao
- Medical Technology School of Xuzhou Medical University, Xuzhou Key Laboratory of Laboratory Diagnostics, Xuzhou 221004, China
| | - Jingfeng Bao
- Medical Technology School of Xuzhou Medical University, Xuzhou Key Laboratory of Laboratory Diagnostics, Xuzhou 221004, China
| | - Bo Tang
- Nanjing Vazyme Medical Technology Co. Ltd., Nanjing 210046, China
| | - Yunfeng Wang
- Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, USA.
| | - Bing Gu
- Medical Technology School of Xuzhou Medical University, Xuzhou Key Laboratory of Laboratory Diagnostics, Xuzhou 221004, China; Department of Laboratory Medicine, The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China.
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12
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Campos EVR, Pereira AES, de Oliveira JL, Carvalho LB, Guilger-Casagrande M, de Lima R, Fraceto LF. How can nanotechnology help to combat COVID-19? Opportunities and urgent need. J Nanobiotechnology 2020; 18:125. [PMID: 32891146 PMCID: PMC7474329 DOI: 10.1186/s12951-020-00685-4] [Citation(s) in RCA: 116] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 08/28/2020] [Indexed: 12/11/2022] Open
Abstract
Incidents of viral outbreaks have increased at an alarming rate over the past decades. The most recent human coronavirus known as COVID-19 (SARS-CoV-2) has already spread around the world and shown R0 values from 2.2 to 2.68. However, the ratio between mortality and number of infections seems to be lower in this case in comparison to other human coronaviruses (such as severe acute respiratory syndrome coronavirus (SARS-CoV) and Middle East respiratory syndrome coronavirus (MERS-CoV)). These outbreaks have tested the limits of healthcare systems and have posed serious questions about management using conventional therapies and diagnostic tools. In this regard, the use of nanotechnology offers new opportunities for the development of novel strategies in terms of prevention, diagnosis and treatment of COVID-19 and other viral infections. In this review, we discuss the use of nanotechnology for COVID-19 virus management by the development of nano-based materials, such as disinfectants, personal protective equipment, diagnostic systems and nanocarrier systems, for treatments and vaccine development, as well as the challenges and drawbacks that need addressing.
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Affiliation(s)
- Estefânia V R Campos
- Human and Natural Sciences Center, Federal University of ABC. Av. dos Estados, 5001. Bl. A, T3 Lab. 503-3. Bangú, Santo André, SP, Brazil
| | - Anderson E S Pereira
- São Paulo State University-UNESP, Institute of Science and Technology, Sorocaba, SP, Brazil
| | | | | | | | - Renata de Lima
- Universidade de Sorocaba, Rodovia Raposo Tavares km 92,5, Sorocaba, São Paulo, Brazil.
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Nanomaterials and nanocomposite applications in veterinary medicine. MULTIFUNCTIONAL HYBRID NANOMATERIALS FOR SUSTAINABLE AGRI-FOOD AND ECOSYSTEMS 2020. [PMCID: PMC7252256 DOI: 10.1016/b978-0-12-821354-4.00024-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Nowadays, nanotechnology has made huge, significant advancements in biotechnology and biomedicine related to human and animal science, including increasing health safety, production, and the elevation of national income. There are various fields of nanomaterial applications in veterinary medicine such as efficient diagnostic and therapeutic tools, drug delivery, animal nutrition, breeding and reproduction, and valuable additives. Additional benefits include the detection of pathogens, protein, biological molecules, antimicrobial agents, feeding additives, nutrient delivery, and reproductive aids. There are many nanomaterials and nanocomposites that can be used in nanomedicine such as metal nanoparticles, liposomes, carbon nanotubes, and quantum dots. In the near future, nanotechnology research will have the ability to produce novel tools for improving animal health and production. Therefore, this chapter was undertaken to spotlight novel methods created by nanotechnology for application in the improvement of animal health and production. In addition, the toxicity of nanomaterials is fully discussed to avoid the suspected health hazards of toxicity for animal health safety.
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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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15
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Colino CI, Millán CG, Lanao JM. Nanoparticles for Signaling in Biodiagnosis and Treatment of Infectious Diseases. Int J Mol Sci 2018; 19:E1627. [PMID: 29857492 PMCID: PMC6032068 DOI: 10.3390/ijms19061627] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 05/25/2018] [Accepted: 05/26/2018] [Indexed: 01/09/2023] Open
Abstract
Advances in nanoparticle-based systems constitute a promising research area with important implications for the treatment of bacterial infections, especially against multidrug resistant strains and bacterial biofilms. Nanosystems may be useful for the diagnosis and treatment of viral and fungal infections. Commercial diagnostic tests based on nanosystems are currently available. Different methodologies based on nanoparticles (NPs) have been developed to detect specific agents or to distinguish between Gram-positive and Gram-negative microorganisms. Also, biosensors based on nanoparticles have been applied in viral detection to improve available analytical techniques. Several point-of-care (POC) assays have been proposed that can offer results faster, easier and at lower cost than conventional techniques and can even be used in remote regions for viral diagnosis. Nanoparticles functionalized with specific molecules may modulate pharmacokinetic targeting recognition and increase anti-infective efficacy. Quorum sensing is a stimuli-response chemical communication process correlated with population density that bacteria use to regulate biofilm formation. Disabling it is an emerging approach for combating its pathogenicity. Natural or synthetic inhibitors may act as antibiofilm agents and be useful for treating multi-drug resistant bacteria. Nanostructured materials that interfere with signal molecules involved in biofilm growth have been developed for the control of infections associated with biofilm-associated infections.
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Affiliation(s)
- Clara I Colino
- Area of Pharmacy and Pharmaceutical Technology, Department of Pharmaceutical Sciences, University of Salamanca, 37007 Salamanca, Spain.
- The Institute for Biomedical Research of Salamanca, 37007 Salamanca, Spain.
| | - Carmen Gutiérrez Millán
- Area of Pharmacy and Pharmaceutical Technology, Department of Pharmaceutical Sciences, University of Salamanca, 37007 Salamanca, Spain.
- The Institute for Biomedical Research of Salamanca, 37007 Salamanca, Spain.
| | - José M Lanao
- Area of Pharmacy and Pharmaceutical Technology, Department of Pharmaceutical Sciences, University of Salamanca, 37007 Salamanca, Spain.
- The Institute for Biomedical Research of Salamanca, 37007 Salamanca, Spain.
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Hu W, Yang E, Ye J, Han W, Du ZL. Resveratrol protects neuronal cells from isoflurane-induced inflammation and oxidative stress-associated death by attenuating apoptosis via Akt/p38 MAPK signaling. Exp Ther Med 2017; 15:1568-1573. [PMID: 29434742 DOI: 10.3892/etm.2017.5527] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Accepted: 06/29/2017] [Indexed: 12/20/2022] Open
Abstract
The aim of the present study was to determine whether resveratrol protects neuronal cells from inflammation and isoflurane-induced oxidative stress-associated death via attenuating apoptosis via Akt/p38 mitogen-activated protein kinase (MAPK) signaling. The PC12 rat pheochromocytoma cell line was treated with 2% isoflurane + 21% O2 + 5% CO2 for 6 h and pre-treated with resveratrol (0-1,000 µM) for 0, 24 or 48 h prior to isoflurane treatment. An MTT assay, flow cytometry and ELISA of tumor necrosis factor-α, interleukin-6, malondialdehyde and superoxide dismutase revealed that resveratrol reduced growth inhibition, restrained apoptosis and suppressed inflammation and oxidative stress induced by isoflurane in PC12 cells. Pretreatment with resveratrol effectively reduced caspase-3 activity and inducible nitric oxide synthase protein expression in isoflurane-induced PC12 cells. In addition, western blot analysis demonstrated that resveratrol treatment significantly attenuated isoflurane-induced decreases in the activated phosphorylated (p)-Akt/Akt ratio and increases in the p-p38/p38 MAPK protein ratio in PC12 cells. These findings indicated that resveratrol was able to protect neuronal cells from isoflurane-induced inflammation and oxidative stress-associated death by attenuating apoptosis via Akt/p38 MAPK signaling.
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Affiliation(s)
- Weilan Hu
- Department of Anesthesiology, Xinxiang Central Hospital of Henan Province, Xinxiang, Henan 453000, P.R. China
| | - Ei Yang
- Department of Anesthesiology, Xinxiang Central Hospital of Henan Province, Xinxiang, Henan 453000, P.R. China
| | - Jianxin Ye
- Department of Anesthesiology, Xinxiang Central Hospital of Henan Province, Xinxiang, Henan 453000, P.R. China
| | - Weili Han
- Department of Anesthesiology, Xinxiang Central Hospital of Henan Province, Xinxiang, Henan 453000, P.R. China
| | - Zeng-Li Du
- Department of Anesthesiology, Coking Coal Central Hospital of Henan Province, Jiaozuo, Henan 454000, P.R. China
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Veigas B, Portugal C, Valério R, Fortunato E, Crespo JG, Baptista PV. Scalable approach for the production of functional DNA based gold nanoprobes. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2015.06.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Veigas B, Fernandes AR, Baptista PV. AuNPs for identification of molecular signatures of resistance. Front Microbiol 2014; 5:455. [PMID: 25221547 PMCID: PMC4147832 DOI: 10.3389/fmicb.2014.00455] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 08/11/2014] [Indexed: 12/11/2022] Open
Abstract
The increasing levels of drug resistance are one of biggest threats to overcome microbial infection. The ability to rapidly and accurately detect a given pathogen and its drug resistance profile is essential for the appropriate treatment of patients and for preventing further spread of drug-resistant strains. The predictive and informative value of these molecular markers needs to be translated into robust surveillance tools that correlate to the target and extent of resistance, monitor multiresistance and provide real time assessment at point-of-need. Rapid molecular assays for the detection of drug-resistance signatures in clinical specimens are based on the detection of specific nucleotide sequences and/or mutations within pre-selected biomarkers in the genome, indicative of the presence of the pathogen and/or associated with drug resistance. DNA and/or RNA based assays offer advantages over phenotypic assays, such as specificity and time from collection to result. Nanotechnology has provided new and robust tools for the detection of pathogens and more crucially to the fast and sensitive characterisation of molecular signatures of drug resistance. Amongst the plethora of nanotechnology based approaches, gold nanoparticles have prompt for the development of new strategies and platforms capable to provide valuable data at point-of-need with increased versatility but reduced costs. Gold nanoparticles, due to their unique spectral, optical and electrochemical properties, are one of the most widely used nanotechnology systems for molecular diagnostics. This review will focus on the use of gold nanoparticles for screening molecular signatures of drug resistance that have been reported thus far, and provide a critical evaluation of current and future developments of these technologies assisting pathogen identification and characterisation.
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Affiliation(s)
- Bruno Veigas
- Nanotheranostics, Centro de Investigação em Genética Molecular Humana, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa Caparica Portugal ; Centro de Investigação em Materiais, Departamento de Ciências de Materiais, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa Caparica, Portugal
| | - Alexandra R Fernandes
- Centro Química Estrutural, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa Caparica, Portugal
| | - Pedro V Baptista
- Nanotheranostics, Centro de Investigação em Genética Molecular Humana, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa Caparica Portugal
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Syed MA. Advances in nanodiagnostic techniques for microbial agents. Biosens Bioelectron 2014; 51:391-400. [DOI: 10.1016/j.bios.2013.08.010] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Revised: 07/12/2013] [Accepted: 08/07/2013] [Indexed: 12/19/2022]
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21
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Tang A, Mei B, Wang W, Hu W, Li F, Zhou J, Yang Q, Cui H, Wu M, Liang G. FITC-quencher based caspase 3-activatable nanoprobes for effectively sensing caspase 3 in vitro and in cells. NANOSCALE 2013; 5:8963-8967. [PMID: 23970215 DOI: 10.1039/c3nr03339b] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
By employing fluorescence resonance energy transfer (FRET) quenching, we rationally designed two new FITC-quencher based nanoprobes for effectively sensing caspase 3 (Casp3) in vitro and in cells. Our nanoprobes hold promise for assessing the chemotherapeutic effect of cancer treatment.
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Affiliation(s)
- Anming Tang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China.
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Lin M, Pei H, Yang F, Fan C, Zuo X. Applications of gold nanoparticles in the detection and identification of infectious diseases and biothreats. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:3490-6. [PMID: 23977699 PMCID: PMC7159368 DOI: 10.1002/adma.201301333] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The situation of infectious diseases and biothreats all over the world remains serious. The effective identification of such diseases plays a very important role. In recent years, gold nanoparticles have been widely used in biosensor design to improve the performance for the detection of infectious diseases and biothreats. Here, recent advances of gold-nanoparticle-based biosensors in this field are summarized.
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Affiliation(s)
- Meihua Lin
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Hao Pei
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Fan Yang
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Chunhai Fan
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Xiaolei Zuo
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
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23
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Cheng MS, Toh CS. Novel biosensing methodologies for ultrasensitive detection of viruses. Analyst 2013; 138:6219-29. [DOI: 10.1039/c3an01394d] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Nanomedicine and veterinary science: the reality and the practicality. Vet J 2012; 193:12-23. [PMID: 22365842 DOI: 10.1016/j.tvjl.2012.01.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Revised: 12/20/2011] [Accepted: 01/03/2012] [Indexed: 01/04/2023]
Abstract
Nanomedicine is a rapidly expanding field with a promising future that is already permeating veterinary science. This review summarises the current applications for nanoparticles in human medicine and explores their potential applicability for veterinary use. The principles underlying the use of nanoparticles in drug delivery, imaging and as vaccine adjuvants are explored along with the unique issues surrounding nanoparticle toxicity and regulatory approval. A brief overview of the properties of different nanoparticle systems including, liposomes, micelles, emulsions and inorganic nanoparticles, is provided, along with a description of their current and potential future applications in veterinary medicine.
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Miranda OR, Li X, Garcia-Gonzalez L, Zhu ZJ, Yan B, Bunz UHF, Rotello VM. Colorimetric bacteria sensing using a supramolecular enzyme-nanoparticle biosensor. J Am Chem Soc 2011; 133:9650-3. [PMID: 21627131 PMCID: PMC3120917 DOI: 10.1021/ja2021729] [Citation(s) in RCA: 221] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Rapid and sensitive detection of pathogens is a key requirement for both environmental and clinical settings. We report here a colorimetric enzyme-nanoparticle conjugate system for detection of microbial contamination. In this approach, cationic gold nanoparticles (NPs) featuring quaternary amine headgroups are electrostatically bound to an enzyme [β-galactosidase (β-Gal)], inhibiting enzyme activity. Analyte bacteria bind to the NP, which releases the β-Gal and restores its activity, providing an enzyme-amplified colorimetric readout of the binding event. Using this strategy, we have been able to quantify bacteria at concentrations of 1 × 10(2) bacteria/mL in solution and 1 × 10(4) bacteria/mL in a field-friendly test strip format.
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Affiliation(s)
- Oscar R. Miranda
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Amherst, Massachusetts 01003
| | - Xiaoning Li
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Amherst, Massachusetts 01003
| | - Limary Garcia-Gonzalez
- Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, San Juan, PR 00931
| | - Zheng-Jiang Zhu
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Amherst, Massachusetts 01003
| | - Bo Yan
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Amherst, Massachusetts 01003
| | - Uwe H. F. Bunz
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332
| | - Vincent M. Rotello
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Amherst, Massachusetts 01003
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28
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Ding N, Cao Q, Zhao H, Yang Y, Zeng L, He Y, Xiang K, Wang G. Colorimetric assay for determination of lead (II) based on its incorporation into gold nanoparticles during their synthesis. SENSORS (BASEL, SWITZERLAND) 2010; 10:11144-55. [PMID: 22163517 PMCID: PMC3231069 DOI: 10.3390/s101211144] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2010] [Revised: 11/15/2010] [Accepted: 12/02/2010] [Indexed: 11/16/2022]
Abstract
In this report, we present a new method for visual detection of Pb2+. Gold nanoparticles (Au-NPs) were synthesized in one step at room temperature, using gallic acid (GA) as reducer and stabilizer. Pb2+ is added during the gold nanoparticle formation. Analysis of Pb2+ is conducted by a dual strategy, namely, colorimetry and spectrometry. During Au-NPs synthesis, addition of Pb2+ would lead to formation of Pb-GA complex, which can induce the aggregation of newly-formed small unstable gold nanoclusters. Consequently, colorimetric detection of trace Pb2+ can be realized. As the Pb2+ concentration increases, the color turns from red-wine to purple, and finally blue. This method offers a sensitive linear correlation between the shift of the absorption band (Δλ) and logarithm of Pb2+ concentration ranging from 5.0×10(-8) to 1.0×10(-6) M with a linear fit coefficient of 0.998, and a high selectivity for Pb2+ detection with a low detection limit down to 2.5×10(-8) M.
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Affiliation(s)
- Nan Ding
- College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy of Sciences, 19A YuQuan Road, Beijing 100049, China; E-Mails: (N.D.); (Q.C.); (Y.Y.); (L.Z.)
| | - Qian Cao
- College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy of Sciences, 19A YuQuan Road, Beijing 100049, China; E-Mails: (N.D.); (Q.C.); (Y.Y.); (L.Z.)
| | - Hong Zhao
- College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy of Sciences, 19A YuQuan Road, Beijing 100049, China; E-Mails: (N.D.); (Q.C.); (Y.Y.); (L.Z.)
| | - Yimin Yang
- College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy of Sciences, 19A YuQuan Road, Beijing 100049, China; E-Mails: (N.D.); (Q.C.); (Y.Y.); (L.Z.)
| | - Lixi Zeng
- College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy of Sciences, 19A YuQuan Road, Beijing 100049, China; E-Mails: (N.D.); (Q.C.); (Y.Y.); (L.Z.)
| | - Yujian He
- College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy of Sciences, 19A YuQuan Road, Beijing 100049, China; E-Mails: (N.D.); (Q.C.); (Y.Y.); (L.Z.)
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China
| | - Kaixiang Xiang
- Huaihua Medical College, Hunan, 418000, China; E-Mail: (K.X.)
| | - Guangwei Wang
- Medical College, Hunan Normal University, Changsha, Hunan 410006, China
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29
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BiotecVisions 2010, May-June. Biotechnol J 2010. [PMCID: PMC7161835 DOI: 10.1002/biot.201000097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
News:Ethanol biofuels from orange peels – Targeting leukaemia's gene addiction – Pea‐derived solar cells – HIV is a kick in the head – Nano‐scale DNA reader – Membrane in black – Cheese improves the immune response of elderly – Synthetic proteins built from standard parts – Therapeutic proteins produced in algae – Biosensor detects 100 mycoplasma cells – Protecting maggots against bacteria – Advanced biofuels from microbes – Fluorescent bacterial uptake – Two disparate stem cell states – Brachypodium genome sequenced Encyclopedia of Life Sciences: Nuclear transfer for cell lines WIREs Nanomedicine and Nanobiotechnology: Nanoparticle detection of respiratory infection Journal Highlights: Biocatalysis – Synthetic Biology In the news: Nanobiotech to detect cancer Most Read Industry News: Biomarker assays for personalized medicine – Bioplastic industry defies economic crisis – SDS‐PAGE monitoring of mAB Awards: BTJ Editors elected members of the US National Academy of Engineering (NAE) Meeting highlight Writing tips: Figure preparation made simple – Some useful tutorials on the web Book Highlights:Molecular Biotechnology – Bacterial Signaling – Yeast Test your knowledge:Do you recognize this? WIREs Authors Spotlight:Nanotechnology and orthopedics
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