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Gordón Pidal JM, Moreno-Guzmán M, Montero-Calle A, Valverde A, Pingarrón JM, Campuzano S, Calero M, Barderas R, López MÁ, Escarpa A. Micromotor-based electrochemical immunoassays for reliable determination of amyloid-β (1-42) in Alzheimer's diagnosed clinical samples. Biosens Bioelectron 2024; 249:115988. [PMID: 38194814 DOI: 10.1016/j.bios.2023.115988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/22/2023] [Accepted: 12/27/2023] [Indexed: 01/11/2024]
Abstract
Alzheimer's disease (AD), in addition to being the most common cause of dementia, is very difficult to diagnose, with the 42-amino acid form of Aβ (Aβ-42) being one of the main biomarkers used for this purpose. Despite the enormous efforts made in recent years, the technologies available to determine Aβ-42 in human samples require sophisticated instrumentation, present high complexity, are sample and time-consuming, and are costly, highlighting the urgent need not only to develop new tools to overcome these limitations but to provide an early detection and treatment window for AD, which is a top-challenge. In recent years, micromotor (MM) technology has proven to add a new dimension to clinical biosensing, enabling ultrasensitive detections in short times and microscale environments. To this end, here an electrochemical immunoassay based on polypyrrole (PPy)/nickel (Ni)/platinum nanoparticles (PtNPs) MM is proposed in a pioneering manner for the determination of Aβ-42 in left prefrontal cortex brain tissue, cerebrospinal fluid, and plasma samples from patients with AD. MM combines the high binding capacity of their immunorecognition external layer with self-propulsion through the catalytic generation of oxygen bubbles in the internal layer due to decomposition of hydrogen peroxide as fuel, allowing rapid bio-detection (15 min) of Aβ-42 with excellent selectivity and sensitivity (LOD = 0.06 ng/mL). The application of this disruptive technology to the analysis of just 25 μL of the three types of clinical samples provides values concordant with the clinical values reported, thus confirming the potential of the MM approach to assist in the reliable, simple, fast, and affordable diagnosis of AD by determining Aβ-42.
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Affiliation(s)
- José M Gordón Pidal
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Sciences, University of Alcalá, Ctra. Madrid-Barcelona, Km. 33.600, Alcalá de Henares, 28802, Madrid, Spain
| | - María Moreno-Guzmán
- Department of Chemistry in Pharmaceutical Sciences, Analytical Chemistry, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal, s/n, 28040, Madrid, Spain
| | - Ana Montero-Calle
- Chronic Disease Programme, UFIEC, Carlos III Health Institute, Majadahonda, Madrid, 28220, Spain
| | - Alejandro Valverde
- Department of Analytical Chemistry, Faculty of Chemistry Science, Complutense University of Madrid, Pza. de las Ciencias 2, Madrid, 28040, Spain
| | - José M Pingarrón
- Department of Analytical Chemistry, Faculty of Chemistry Science, Complutense University of Madrid, Pza. de las Ciencias 2, Madrid, 28040, Spain
| | - Susana Campuzano
- Department of Analytical Chemistry, Faculty of Chemistry Science, Complutense University of Madrid, Pza. de las Ciencias 2, Madrid, 28040, Spain.
| | - Miguel Calero
- Chronic Disease Programme, UFIEC, Carlos III Health Institute, Majadahonda, Madrid, 28220, Spain
| | - Rodrigo Barderas
- Chronic Disease Programme, UFIEC, Carlos III Health Institute, Majadahonda, Madrid, 28220, Spain.
| | - Miguel Ángel López
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Sciences, University of Alcalá, Ctra. Madrid-Barcelona, Km. 33.600, Alcalá de Henares, 28802, Madrid, Spain; Chemical Research Institute "Andrés M. Del Rio", University of Alcalá, Madrid, Spain
| | - Alberto Escarpa
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Sciences, University of Alcalá, Ctra. Madrid-Barcelona, Km. 33.600, Alcalá de Henares, 28802, Madrid, Spain; Chemical Research Institute "Andrés M. Del Rio", University of Alcalá, Madrid, Spain.
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Gordón Pidal JM, Arruza L, Moreno-Guzmán M, López MÁ, Escarpa A. Micromotor-based dual aptassay for early cost-effective diagnosis of neonatal sepsis. Mikrochim Acta 2024; 191:106. [PMID: 38240873 PMCID: PMC10798920 DOI: 10.1007/s00604-023-06134-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 12/11/2023] [Indexed: 01/22/2024]
Abstract
Given the long-life expectancy of the newborn, research aimed at improving sepsis diagnosis and management in this population has been recognized as cost-effective, which at early stages continues to be a tremendous challenge. Despite there is not an ideal-specific biomarker, the simultaneous detection of biomarkers with different behavior during an infection such as procalcitonin (PCT) as high specificity biomarker with one of the earliest biomarkers in sepsis as interleukin-6 (IL-6) increases diagnostic performance. This is not only due to their high positive predictive value but also, since it can also help the clinician to rule out infection and thus avoid the use of antibiotics, due to their high negative predictive value. To this end, we explore a cutting-edge micromotor (MM)-based OFF-ON dual aptassay for simultaneous determination of both biomarkers in 15 min using just 2 μL of sample from low-birth-weight neonates with gestational age less than 32 weeks and birthweight below 1000 g with clinical suspicion of late-onset sepsis. The approach reached the high sensitivities demanded in the clinical scenario (LODPCT = 0.003 ng/mL, LODIL6 = 0.15 pg/mL) with excellent correlation performance (r > 0.9990, p < 0.05) of the MM-based approach with the Hospital method for both biomarkers during the analysis of diagnosed samples and reliability (Er < 6% for PCT, and Er < 4% for IL-6). The proposed approach also encompasses distinctive technical attributes in a clinical scenario since its minimal sample volume requirements and expeditious results compatible with few easy-to-obtain drops of heel stick blood samples from newborns admitted to the neonatal intensive care unit. This would enable the monitoring of both sepsis biomarkers within the initial hours after the manifestation of symptoms in high-risk neonates as a valuable tool in facilitating prompt and well-informed decisions about the initiation of antibiotic therapy.These results revealed the asset behind micromotor technology for multiplexing analysis in diagnosing neonatal sepsis, opening new avenues in low sample volume-based diagnostics.
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Affiliation(s)
- José M Gordón Pidal
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Sciences, University of Alcalá, Ctra. Madrid-Barcelona, Km. 33.600, Alcalá de Henares, 28802, Madrid, Spain
| | - Luis Arruza
- Department of Neonatology, Instituto del Niño y del Adolescente, Hospital Clínico San Carlos-IdISSC, 28040, Madrid, Spain
| | - María Moreno-Guzmán
- Department of Chemistry in Pharmaceutical Sciences, Analytical Chemistry, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal, S/N, 28040, Madrid, Spain
| | - Miguel Ángel López
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Sciences, University of Alcalá, Ctra. Madrid-Barcelona, Km. 33.600, Alcalá de Henares, 28802, Madrid, Spain.
- Chemical Research Institute "Andrés M. Del Rio", University of Alcalá, Madrid, Spain.
| | - Alberto Escarpa
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Sciences, University of Alcalá, Ctra. Madrid-Barcelona, Km. 33.600, Alcalá de Henares, 28802, Madrid, Spain.
- Chemical Research Institute "Andrés M. Del Rio", University of Alcalá, Madrid, Spain.
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Valverde A, Gordón Pidal JM, Montero‐Calle A, Arévalo B, Serafín V, Calero M, Moreno‐Guzmán M, López MÁ, Escarpa A, Yáñez‐Sedeño P, Barderas R, Campuzano S, Pingarrón JM. Paving the Way for Reliable Alzheimer's Disease Blood Diagnosis by Quadruple Electrochemical Immunosensing. ChemElectroChem 2022. [DOI: 10.1002/celc.202200308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alejandro Valverde
- Department of Analytical Chemistry, Faculty of Chemistry Complutense University of Madrid 28040 Madrid Spain
| | - José M. Gordón Pidal
- Department of Analytical Chemistry, Faculty of Chemistry Complutense University of Madrid 28040 Madrid Spain
- Department of Analytical Chemistry Physical Chemistry and Chemical Engineering University of Alcalá Alcalá de Henares 28871 Madrid Spain
| | - Ana Montero‐Calle
- Chronic Disease Programme UFIEC Carlos III Health Institute Majadahonda Madrid 28220 Spain
| | - Beatriz Arévalo
- Department of Analytical Chemistry, Faculty of Chemistry Complutense University of Madrid 28040 Madrid Spain
| | - Verónica Serafín
- Department of Analytical Chemistry, Faculty of Chemistry Complutense University of Madrid 28040 Madrid Spain
| | - Miguel Calero
- CIBERNED Carlos III Institute of Health Majadahonda Madrid 28220 Spain
| | - María Moreno‐Guzmán
- Department of Chemistry in Pharmaceutical Sciences, Analytical Chemistry Faculty of Pharmacy Complutense University of Madrid Av. Complutense, s/n 28040 Madrid Spain
| | - Miguel Ángel López
- Department of Analytical Chemistry Physical Chemistry and Chemical Engineering University of Alcalá Alcalá de Henares 28871 Madrid Spain
- Chemical Research Institute “Andrés M. del Río” University of Alcalá Alcalá de Henares 28871 Madrid Spain
| | - Alberto Escarpa
- Department of Analytical Chemistry Physical Chemistry and Chemical Engineering University of Alcalá Alcalá de Henares 28871 Madrid Spain
- Chemical Research Institute “Andrés M. del Río” University of Alcalá Alcalá de Henares 28871 Madrid Spain
| | - Paloma Yáñez‐Sedeño
- Department of Analytical Chemistry, Faculty of Chemistry Complutense University of Madrid 28040 Madrid Spain
| | - Rodrigo Barderas
- Chronic Disease Programme UFIEC Carlos III Health Institute Majadahonda Madrid 28220 Spain
| | - Susana Campuzano
- Department of Analytical Chemistry, Faculty of Chemistry Complutense University of Madrid 28040 Madrid Spain
| | - José M. Pingarrón
- Department of Analytical Chemistry, Faculty of Chemistry Complutense University of Madrid 28040 Madrid Spain
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Valverde A, Gordón Pidal JM, Montero-Calle A, Arévalo B, Serafín V, Calero M, Moreno-Guzmán M, López MÁ, Escarpa A, Yáñez-Sedeño P, Barderas R, Campuzano S, Pingarrón JM. Paving the way for reliable Alzheimer's disease blood diagnosis by quadruple electrochemical immunosensing. ChemElectroChem 2022. [DOI: 10.1002/celc.202200055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Alejandro Valverde
- Universidad Complutense de Madrid Facultad de Ciencias Quimicas Analytical Chemistry SPAIN
| | - José M. Gordón Pidal
- Universidad de Alcala Analytical Chemistry, Physical Chemistry and Chemical Engineering SPAIN
| | - Ana Montero-Calle
- Instituto de Salud Carlos III Chronic Disease Programme, UFIEC SPAIN
| | - Beatriz Arévalo
- Universidad Complutense de Madrid Facultad de Ciencias Quimicas Analytical Chemistry SPAIN
| | - Verónica Serafín
- Universidad Complutense de Madrid Facultad de Ciencias Quimicas Analytical Chemistry SPAIN
| | | | | | - Miguel Ángel López
- Universidad de Alcala Analytical Chemsitry, Physical Chemistry and Chemical Engineering SPAIN
| | - Alberto Escarpa
- Universidad de Alcala Analytical Chemistry, Physical Chemistry and Chemical Engineering SPAIN
| | - Paloma Yáñez-Sedeño
- Universidad Complutense de Madrid Facultad de Ciencias Quimicas Analytical Chemistry SPAIN
| | - Rodrigo Barderas
- Instituto de Salud Carlos III Chronic Disease Programme, UFIEC SPAIN
| | - Susana Campuzano
- Universidad Complutense de Madrid Facultad de Ciencias Quimicas Analytical Chemistry SPAIN
| | - José Manuel Pingarrón
- Universidad Complutense de Madrid Química Analítica Av. Complutense s/n 28040 Madrid SPAIN
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