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A sensitive immunoassay for the rapid analysis of fluopicolide.
Talanta
January 2025
Institute of Agrochemistry and Food Technology, Spanish Council for Scientific Research (IATA-CSIC), Av. Agustí Escardino 7, Paterna, 46980, Valencia, Spain. Electronic address:
The analysis of chemical xenobiotics in human, food, and environmental samples has become a global priority. Consequently, both public and private laboratories require rapid, cost-effective analytical methods for quality and safety control. Fluopicolide, a fungicide used to combat plant diseases, poses potential toxicological risks to humans and animals.
View Article and Find Full Text PDFEstablishment and application of a sandwich ELISA method for measuring Toxoplasma gondii circulating fructose-1,6-bisphosphate aldolase (ALD) protein in cats.
Vet Parasitol
January 2025
Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, PR China; Chongqing Academy of Animal Sciences, Chongqing, PR China. Electronic address:
Toxoplasmosis is an important public health concern. Cats play a crucial role in increasing the risk of toxoplasmosis transmission to humans. Early diagnosis in cats is essential for the prevention and control of toxoplasmosis.
View Article and Find Full Text PDFCross-reactive sarbecovirus antibodies induced by mosaic RBD-nanoparticles.
bioRxiv
January 2025
Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA.
Therapeutic monoclonal antibodies (mAbs) against SARS-CoV-2 become obsolete as spike substitutions reduce antibody binding. To induce antibodies against conserved receptor-binding domain (RBD) regions for protection against SARS-CoV-2 variants of concern and zoonotic sarbecoviruses, we developed mosaic-8b RBD-nanoparticles presenting eight sarbecovirus RBDs arranged randomly on a 60-mer nanoparticle. Mosaic-8b immunizations protected animals from challenges from viruses whose RBDs were matched or mismatched to those on nanoparticles.
View Article and Find Full Text PDFUltrasensitive "Hunter of Target": Rabbit Monoclonal Antibody-Based Competitive Lateral Flow Immunoassay for Saxitoxin.
Anal Chem
January 2025
Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China.
The rapid, sensitive, and accurate detection of paralytic shellfish toxins (PSTs), such as saxitoxin (STX), is critical for protecting human health due to the frequent occurrence of toxic red tides. In this work, to address the low affinity of traditional mouse monoclonal antibodies (m-mAbs), rabbit monoclonal antibodies (r-mAbs) against STX were produced by a single B-cell sorting culture and a cross-selection strategy. The r-mAbs showed 100-fold improvement in sensitivity (IC = 0.
View Article and Find Full Text PDFPotentiating CD20 monoclonal antibody therapy by targeting complement C3 fragment covalently deposited on lymphoma cells.
Blood
January 2025
NIH, National Heart Lung Blood Institute, Bethesda, Maryland, United States.
Monoclonal antibodies (mAbs) improve survival of patients with mature B-cell malignancies. Fcγ-receptor dependent effector mechanisms kill tumor cells but can promote antigen loss through trogocytosis, contributing to treatment failures. Cell-bound mAbs trigger the complement cascade to deposit C3 activation fragments and lyse cells.
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