Mainly performed within a rapid diagnostic tests company, a lateral flow (LF) system using gold nanoparticles (AuNPs) as transducers is presented able to detect three bacteria of interest, of relevance for antimicrobial resistance (AMR): Clostridioides difficile, methicillin-resistant Staphylococcus aureus (MRSA), and Klebsiella pneumoniae, with a limit of detection of 25 ng/mL of glutamate dehydrogenase (GDH) for C. difficile, 36 ng/mL of penicillin-binding protein 2a (PBP2a) for MRSA, and 4 × 10 CFU/mL for K. pneumoniae. The system showed good results with bacteria culture samples, is user-friendly, and suitable for rapid testing, as the results are obtained within 15 min.
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http://dx.doi.org/10.1007/s00604-024-06701-w | DOI Listing |
Biosens Bioelectron
December 2024
Nanobiointeractions&Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego, 30, 16163, Genova, Italy. Electronic address:
Lateral flow assays (LFA) are widely adopted in point-of-care diagnostics across a spectrum of applications, due to their simplicity of use and cost-effectiveness. However, in complex biological matrices (e.g.
View Article and Find Full Text PDFBiosens Bioelectron
December 2024
Teaching and Research Office of Food Safety, School of Public Course, Bengbu Medical College, Bengbu, 233000, China. Electronic address:
The construction of structure-guided aptamers and the ultra-sensitive aptamer-based lateral flow assays (Apt-LFA) integrated detection method hold significant potential for food analysis. Using an engineered modified sequence strategy, we successfully developed the aptamer Cap-1-2M4, significantly enhancing its affinity for capsaicin (CAP) to 0.6197 ± 0.
View Article and Find Full Text PDFToxins (Basel)
November 2024
CIMO, LA SusTEC, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
Aflatoxins constitute a significant risk in staple foods produced in African countries. This research aimed to analyze the total aflatoxin (AFT) contamination of various staple foods in Angola and Mozambique. A total of 233 samples of corn, peanuts, beans, rice, and cassava flour collected from farmers or local markets from the province of Cuanza Sul, Angola, and the provinces of Gaza and Inhambane, South Mozambique, were analyzed for the presence of AFT using the lateral flow strip method via AgraStrip Pro WATEX (Romer).
View Article and Find Full Text PDFJ Fungi (Basel)
December 2024
Pneumology Department, Central Universitary Hospital of Asturias (HUCA), 33011 Oviedo, Spain.
The importance of fungal pathogens in cystic fibrosis (CF) patients and their diagnosis remains a challenge, so our aim was to analyze the influence of the detection of fungi in sputum by using conventional culture and molecular techniques, polymerase chain reaction (PCR), lateral flow devices (LFDs), and galactomannan (GM) on exacerbations in patients with cystic fibrosis. A prospective study was conducted in patients via follow-up in the CF Unit of the Central University Hospital of Asturias from January 2021 to April 2022. Adult patients with at least one documented exacerbation were included.
View Article and Find Full Text PDFJ Fungi (Basel)
November 2024
Department of Chemistry, Colorado State University, 1801 Campus Delivery, Fort Collins, CO 80523, USA.
In the last decade, pulmonary fungal infections such as invasive pulmonary aspergillosis (IPA) have increased in incidence due to the increased number of immunocompromised individuals. This increase is especially problematic when considering mortality rates associated with IPA are upwards of 70%. This high mortality rate is due to, in part, the length of time it takes to diagnose a patient with IPA.
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