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Soman SS, Samad SA, Venugopalan P, Kumawat N, Kumar S. Microfluidic paper analytic device (μPAD) technology for food safety applications. BIOMICROFLUIDICS 2024; 18:031501. [PMID: 38706979 PMCID: PMC11068414 DOI: 10.1063/5.0192295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 04/15/2024] [Indexed: 05/07/2024]
Abstract
Foodborne pathogens, food adulterants, allergens, and toxic chemicals in food can cause major health hazards to humans and animals. Stringent quality control measures at all stages of food processing are required to ensure food safety. There is, therefore, a global need for affordable, reliable, and rapid tests that can be conducted at different process steps and processing sites, spanning the range from the sourcing of food to the end-product acquired by the consumer. Current laboratory-based food quality control tests are well established, but many are not suitable for rapid on-site investigations and are costly. Microfluidic paper analytical devices (μPADs) are a fast-growing field in medical diagnostics that can fill these gaps. In this review, we describe the latest developments in the applications of microfluidic paper analytic device (μPAD) technology in the food safety sector. State-of-the-art μPAD designs and fabrication methods, microfluidic assay principles, and various types of μPAD devices with food-specific applications are discussed. We have identified the prominent research and development trends and future directions for maximizing the value of microfluidic technology in the food sector and have highlighted key areas for improvement. We conclude that the μPAD technology is promising in food safety applications by using novel materials and improved methods to enhance the sensitivity and specificity of the assays, with low cost.
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Affiliation(s)
- Soja Saghar Soman
- Division of Engineering, New York University Abu Dhabi, Abu Dhabi, P.O. Box 129188, UAE
| | - Shafeek Abdul Samad
- Division of Engineering, New York University Abu Dhabi, Abu Dhabi, P.O. Box 129188, UAE
| | | | - Nityanand Kumawat
- Division of Engineering, New York University Abu Dhabi, Abu Dhabi, P.O. Box 129188, UAE
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Wang J, Niu K, Hou J, Zhuang Z, Zhu J, Jing X, Wang N, Xia B, Lei L. Advanced Integration of Glutathione-Functionalized Optical Fiber SPR Sensor for Ultra-Sensitive Detection of Lead Ions. MATERIALS (BASEL, SWITZERLAND) 2023; 17:98. [PMID: 38203952 PMCID: PMC10780099 DOI: 10.3390/ma17010098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024]
Abstract
It is crucial to detect Pb2+ accurately and rapidly. This work proposes an ultra-sensitive optical fiber surface plasmon resonance (SPR) sensor functionalized with glutathione (GSH) for label-free detection of the ultra-low Pb2+ concentration, in which the refractive index (RI) sensitivity of the multimode-singlemode-multimode (MSM) hetero-core fiber is largely enhanced by the gold nanoparticles (AuNPs)/Au film coupling SPR effect. The GSH is modified on the fiber as the sensing probe to capture and identify Pb2+ specifically. Its working principle is that the Pb2+ chemically reacts with deprotonated carboxyl groups in GSH through ligand bonding, resulting in the formation of stable and specific chelates, inducing the variation of the local RI on the sensor surface, which in turn leads to the SPR wavelength shift in the transmission spectrum. Attributing to the AuNPs, both the Au substrates can be fully functionalized with the GSH molecules as the probes, which largely increases the number of active sites for Pb2+ trapping. Combined with the SPR effect, the sensor achieves a sensitivity of 2.32 × 1011 nm/M and a limit of detection (LOD) of 0.43 pM. It also demonstrates exceptional specificity, stability, and reproducibility, making it suitable for various applications in water pollution, biomedicine, and food safety.
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Affiliation(s)
- Jiale Wang
- National Engineering Research Center of Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, China; (J.W.); (K.N.); (J.H.); (Z.Z.); (J.Z.); (X.J.)
| | - Kunpeng Niu
- National Engineering Research Center of Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, China; (J.W.); (K.N.); (J.H.); (Z.Z.); (J.Z.); (X.J.)
| | - Jianguo Hou
- National Engineering Research Center of Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, China; (J.W.); (K.N.); (J.H.); (Z.Z.); (J.Z.); (X.J.)
| | - Ziyang Zhuang
- National Engineering Research Center of Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, China; (J.W.); (K.N.); (J.H.); (Z.Z.); (J.Z.); (X.J.)
| | - Jiayi Zhu
- National Engineering Research Center of Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, China; (J.W.); (K.N.); (J.H.); (Z.Z.); (J.Z.); (X.J.)
| | - Xinyue Jing
- National Engineering Research Center of Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, China; (J.W.); (K.N.); (J.H.); (Z.Z.); (J.Z.); (X.J.)
| | - Ning Wang
- National Engineering Research Center of Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, China; (J.W.); (K.N.); (J.H.); (Z.Z.); (J.Z.); (X.J.)
| | - Binyun Xia
- National Engineering Research Center of Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, China; (J.W.); (K.N.); (J.H.); (Z.Z.); (J.Z.); (X.J.)
| | - Lei Lei
- Zhongshan Institute of Modern Industrial Technology of SCUT, South China University of Technology, Zhongshan 528400, China;
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Lacerda D, Vergilio CDS, Pestana IA, Alvares da Silva AM, de Assis Pinheiro J, Freitas FV, Barbosa WM, Gomes de Almeida M, Vaz de Oliveira BC, de Rezende CE. Metal concentrations in the whole blood of farmers in southeast Brazil. CHEMOSPHERE 2023; 344:140199. [PMID: 37769919 DOI: 10.1016/j.chemosphere.2023.140199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/11/2023] [Accepted: 09/14/2023] [Indexed: 10/03/2023]
Abstract
In this study, we measured Ni, Co, Cd, and Pb concentrations in the whole blood of farmers from southeast Brazil to address the factors influencing human exposure in this population. The factors included smoking, alcohol consumption, aging, body composition, gender, and feeding preferences, which were measured through carbon and nitrogen isotopic composition. We also calculated and compared the reference values (RVs) of the measured elements to evaluate ongoing exposure levels. We observed the influence of lifestyle habits on metal exposure; Cd levels were statistically higher in smokers, and alcohol consumption affected only Pb concentrations, with an association also observed with the frequency of alcohol ingestion. The metal levels were positively associated with both isotope values, indicating that feeding may be the dominant source of these elements in this population. We also observed the effect of endogenous sources measured through age, as increased Pb concentrations in both genders and higher Cd levels in older women, which is related to bone, kidney, and liver accumulation. The body mass index was negatively associated with Ni, Co, and Cd in women and positively in men. The negative associations may indicate that body fat may act as a reservoir for metals, reducing their availability in the blood in individuals with higher body mass and possibly influencing the assessment of exposure levels. The evaluated population presented elevated RVs for all elements: Ni 36, Co 3.3, Cd 16, and Pb 149 μg L-1. These values point to higher exposure in this population compared to other studies in Brazil and worldwide. These results emphasize an urgent need for monitoring programs for toxic substances in Brazil and evaluating possible health effects, given the ongoing environmental exposure associated with endogenous exposure and lifestyle habits that promote higher metal levels in this population.
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Affiliation(s)
- Diego Lacerda
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro. Avenida Alberto Lamego, 2000, Parque Califórnia, Campos Dos Goytacazes, Rio de Janeiro, CEP: 28.013-602, Brazil.
| | - Cristiane Dos Santos Vergilio
- Laboratório de Ecotoxicologia, Departamento de Biologia, Centro de Ciências Exatas Naturais e da Saúde, Universidade Federal Do Espírito Santo - Campus Alegre. Alto Universitário, S/N, Guararema, Alegre, Espírito Santo, CEP: 29.500-000, Brazil
| | - Inácio Abreu Pestana
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro. Avenida Alberto Lamego, 2000, Parque Califórnia, Campos Dos Goytacazes, Rio de Janeiro, CEP: 28.013-602, Brazil
| | - Adriana Madeira Alvares da Silva
- Laboratório de Ecotoxicologia, Departamento de Biologia, Centro de Ciências Exatas Naturais e da Saúde, Universidade Federal Do Espírito Santo - Campus Alegre. Alto Universitário, S/N, Guararema, Alegre, Espírito Santo, CEP: 29.500-000, Brazil
| | - Julia de Assis Pinheiro
- Departamento de Farmácia e Nutrição, Centro de Ciências Exatas Naturais e da Saúde, Universidade Federal Do Espírito Santo - Campus Alegre. Alto Universitário, S/N, Guararema, Alegre, Espírito Santo, CEP: 29.500-000, Brazil
| | - Flavia Vitorino Freitas
- Departamento de Farmácia e Nutrição, Centro de Ciências Exatas Naturais e da Saúde, Universidade Federal Do Espírito Santo - Campus Alegre. Alto Universitário, S/N, Guararema, Alegre, Espírito Santo, CEP: 29.500-000, Brazil
| | - Wagner Miranda Barbosa
- Departamento de Farmácia e Nutrição, Centro de Ciências Exatas Naturais e da Saúde, Universidade Federal Do Espírito Santo - Campus Alegre. Alto Universitário, S/N, Guararema, Alegre, Espírito Santo, CEP: 29.500-000, Brazil
| | - Marcelo Gomes de Almeida
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro. Avenida Alberto Lamego, 2000, Parque Califórnia, Campos Dos Goytacazes, Rio de Janeiro, CEP: 28.013-602, Brazil
| | - Bráulio Cherene Vaz de Oliveira
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro. Avenida Alberto Lamego, 2000, Parque Califórnia, Campos Dos Goytacazes, Rio de Janeiro, CEP: 28.013-602, Brazil
| | - Carlos Eduardo de Rezende
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro. Avenida Alberto Lamego, 2000, Parque Califórnia, Campos Dos Goytacazes, Rio de Janeiro, CEP: 28.013-602, Brazil
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Larsen B, Sánchez-Triana E. Global health burden and cost of lead exposure in children and adults: a health impact and economic modelling analysis. Lancet Planet Health 2023; 7:e831-e840. [PMID: 37714172 DOI: 10.1016/s2542-5196(23)00166-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 09/17/2023]
Abstract
BACKGROUND Lead exposure is a worldwide health risk despite substantial declines in blood lead levels following the leaded gasoline phase-out. For the first time, to our knowledge, we aimed to estimate the global burden and cost of intelligence quotient (IQ) loss and cardiovascular disease mortality from lead exposure. METHODS In this modelling study, we used country blood lead level estimates from the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2019. We estimated IQ loss (presented as estimated loss in IQ points with 95% CIs) in the global population of children younger than 5 years using the blood lead level-IQ loss function from an international pooled analysis. We estimated the cost of IQ loss, which was calculated only for the proportion of children expected to enter the labour force, as the present value of loss in lifetime income from the IQ loss (presented as cost in US dollars and percentage of gross domestic product with a range). We estimated cardiovascular deaths (with 95% CIs) due to lead exposure among people aged 25 years or older using a health impact model that captures the effect of lead exposure on cardiovascular disease mortality that is mediated through mechanisms other than hypertension. Finally, we used values of statistical life to estimate the welfare cost of premature mortality (presented as cost in US dollars and percentage of GDP). All estimates were calculated by World Bank income classification and region (for low-income and middle-income countries [LMICs] only) for 2019. FINDINGS We estimated that children younger than 5 years lost 765 million (95% CI 443-1098) IQ points and that 5 545 000 (2 305 000-8 271 000) adults died from cardiovascular disease in 2019 due to lead exposure. 729 million of the IQ points lost (95·3% of the total global IQ loss) and 5 004 000 (90·2% of total) cardiovascular disease deaths due to lead exposure occurred in LMICs. IQ loss in LMICs was nearly 80% higher than a previous estimate. Cardiovascular disease deaths were six times higher than the GBD 2019 estimate. The global cost of lead exposure was US$6·0 trillion (range 2·6-9·0) in 2019, which was equivalent to 6·9% (3·1-10·4) of the global gross domestic product. 77% (range 70-78) of the cost was the welfare cost of cardiovascular disease mortality, and 23% (22-30) was the present value of future income losses from IQ loss. INTERPRETATION Our findings suggest that global lead exposure has health and economic costs at par with PM2·5 air pollution. However, much work remains to improve the quality of blood lead level measurement data, especially in LMICs. FUNDING The Korea Green Growth Trust Fund and the World Bank's Pollution Management and Environmental Health Program.
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