We present a method for conjugating antigens to gold nanoparticles (GNPs) during their synthesis via gas plasma, eliminating the need for chemical linkers and significantly speeding up the process (taking only 15 min). This fast, linker-free method produces biocompatible and stable GNPs, with potential for immunotherapy applications, such as antigen and antibody conjugation and drug delivery. We demonstrate the conjugation of the antigen Nestin (NES), a tumor marker, to GNPs using two approaches. The first method involves synthesizing GNPs with citrate, followed by NES conjugation via plasma. The second method synthesizes and conjugates GNPs to NES simultaneously using plasma treatment. Conjugation was confirmed by , , , and . In addition, the toxicity of the prepared samples was investigated in vitro using peripheral blood mononuclear cells (PBMCs) and , which proved the nontoxicity of the samples.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acs.nanolett.4c05641 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A split-type near-infrared photoelectrochemical and colorimetric dual-mode biosensor for the high-performance determination of HepG2 cells.
Talanta
January 2025
School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China. Electronic address:
Hepatocellular carcinoma (HCC) stands as a grave illness characterized by elevated death rates. Early identification plays a vital role in improving patient survival. Herein, a novel split-type dual-mode biosensor featuring with near-infrared photoelectronchemical (PEC) and colorimetric sensing characteristics was developed for the high-performance detection of HepG2 cells.
View Article and Find Full Text PDFConfined active area and aggregation kinetic-based AuNPs@PVP nanosensors for simultaneous colorimetric detection of cysteine and homocysteine as homologues in human urine and serum.
Mikrochim Acta
January 2025
College of Chemistry, Chemical Engineering & Environmental Science, Minnan Normal University, Zhangzhou, 363000, China.
The detection of cysteine (Cys) and homocysteine (Hcy) in biological fluids has great significance for early diagnosis, including Alzheimer's and Parkinson's disease. The simultaneous determination of Cys and Hcy with a single probe is still a huge challenge. To enlarge the differences in space structure (line and ring) and energy (-721.
View Article and Find Full Text PDFMetasurface Plasmon Resonance Biosensor Enhanced with Dual Gold Nanoparticles for the Ultrasensitive Quantitative Detection of C-Reactive Protein.
Nano Lett
January 2025
College of Life Science and Technology, State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan 430074, China.
The pursuit of cutting-edge diagnostic systems capable of detecting biomarkers with exceptional sensitivity and precision is crucial for the timely and accurate monitoring of inflammatory responses. In this study, we introduce a dual gold nanoparticle-enhanced metasurface plasmon resonance (Bi-MSPR) biosensor for the ultrasensitive detection of C-reactive protein (CRP). The Bi-MSPR sensor is constructed upon a nanocup array chip with gradient-free electron density, where an innovative metasurface structure is built using a PEI-immobilized dual-gold nanoparticle amplification system.
View Article and Find Full Text PDFGlycan-Matchmade Multivalent Decoration of Enzyme Labels for Amplified Electrochemical Detection of Glycoproteins.
Anal Chem
January 2025
Center for Advanced Analytical Science, Guangzhou Key Laboratory of Sensing Materials and Devices, Guangdong Engineering Technology Research Center for Sensing Materials and Devices, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
Glycoproteins are of significant value to liquid biopsy of human diseases. Herein, we present a universal electrochemical platform for the amplified detection of glycoproteins, taking advantage of the glycan-matchmade multivalent decoration of enzyme labels for the enzymatic signal amplification. Briefly, the glycan-matchmade multivalent decoration involves two steps, i.
View Article and Find Full Text PDFAn Au-Ag@Au fiber surface plasmon resonance sensor for highly sensitive detection of fluoroquinolone residues.
Analyst
January 2025
Tianjin Key Laboratory for Marine Environmental Research and Service, School of Marine Science and Technology, Tianjin University, Tianjin 300072, PR China.
Antibiotic residue detection plays an important role in protecting human health, but real-time, rapid, and highly sensitive detection is still challenging. Herein, gold and silver nanoparticles (Au-Ag NPs) were grown on the surface of optical fibers and a 50 nm thick gold film was deposited on the sensor's surface to fabricate the Au-Ag@Au fiber SPR sensor. The sensitivity of the sensor reached 3512 nm per RIU in the refractive index range of 1.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!