Click chemistry is the latest strategy called upon in the development of state of the art exponents of bioconjugation. In this study, we have proposed a covalent and photosensitive crosslinking conjugation of the antibody on nano-structures. For this purpose, quantum dots (QDs) without affecting conformation and function of proteins through the ruthenium-chelate based aminoacid monomer linkages have been applied. The aminoacid-monomer linkages called ANADOLUCA (AmiNoAcid Decorated and Light Underpining Conjugation Approach) give reusable oriented and cross-linked anti 2,4,6-trinitrotoluene (TNT) conjugated QD for TNT detection. In this work, a new and simple method has improved to design and prepare high sensitive nanoconjugates for TNT determination. We have demonstrated the use of luminescent QDs conjugated to antibody for the specific detection of the explosive TNT in aqueous environments. The binding affinity of each nanoconjugates for TNT detection by using Langmuir adsorption methods has also been investigated.
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http://dx.doi.org/10.1016/j.talanta.2012.01.007 | DOI Listing |
Molecules
January 2025
Department of Law, University of Bergamo, Via Moroni 255, 24127 Bergamo, Italy.
Background: The detection of explosives in crime scene investigations is critical for forensic science. This study explores the application of laser desorption (LD) ion mobility spectrometry (IMS) as a novel method for this purpose utilising a new IMS prototype developed by MaSaTECH.
Methods: The LD sampling technique employs a laser diode module to vaporise explosive traces on surfaces, allowing immediate analysis by IMS without sample preparation.
Microorganisms
December 2024
Department of Internal Medicine II, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria.
Coronavirus Disease 2019 causes significant morbidity, and different variants of concern (VOCs) can impact organ systems differently. We conducted a single-center retrospective cohort analysis comparing biomarkers and clinical outcomes in hospitalized patients infected with the wild-type or Alpha (wt/Alpha) VOC against patients infected with the Omicron VOC. We included 428 patients infected with the wt/Alpha VOC and 117 patients infected with the Omicron VOC.
View Article and Find Full Text PDFInt J Med Sci
January 2025
Nanchang Institute of Technology, College of Medicine, China.
Myocardial injury is prone to occur during myocardial ischemia-reperfusion, which further causes adverse cardiac events. Cardiomyopeptide (CMP) has been found to protect the heart against ischemia-reperfusion injury. The present study will explore the molecular and signaling mechanisms associated with the therapeutic effects of CMP.
View Article and Find Full Text PDFACS Sens
December 2024
York Plasma Institute, School of Physics, Engineering and Technology, University of York, York YO10 5DD, U.K.
Nanogold is an emerging material for enhancing surface-enhanced Raman scattering (SERS), which enables the detection of hazardous analytes at trace levels. This study presents a simple, single-step plasma synthesis method to control the size and yield of Au nanoparticles by using plasma-liquid redox chemistry. The pin-based argon plasma reduces the Au precursor in under 5 min, synthesizing Au spherical particles ranging from ∼20 nm at 0.
View Article and Find Full Text PDFEur J Cancer
December 2024
Department of Dermatology and Allergy, University Hospital, LMU Munich, Munich, Germany; Department of Dermatology, Friedrich-Alexander University Erlangen-Nürnberg (FAU) and University Hospital Erlangen (UKER), Deutsches Zentrum Immuntherapie (DZI) and Comprehensive Cancer Center Erlangen-European Metropolitan Area of Nürnberg (CCC-ER-EMN), Erlangen, Germany; SERIO Registry (www.serio-registry.org), Germany. Electronic address:
Background: Immune checkpoint inhibitor (ICI)-induced Myocarditis (irMyocarditis) is a rare adverse event with a high mortality rate of 40-50 % and which is mostly not diagnosed until clinical symptoms emerge.
Objectives: This study aims to screen patients for irMyocarditis using high-sensitivity cardiac troponin-T (hs-TnT) before and regularly during therapy with ICI.
Methods: A cohort of 280 cancer patients were prospectively screened for levels of hs-TnT at baseline and prior to every ICI infusion.
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