AI Article Synopsis

  • The text discusses a common genital mycoplasma that can lead to reproductive issues and negative pregnancy outcomes in both men and women.
  • Traditional diagnostic methods, like pathogen culture and PCR, are slow and require specialized equipment and trained personnel.
  • A new detection method is introduced that combines catalytic hairpin assembly with a lateral flow immunoassay, allowing results in just 30 minutes using simple tools like a water bath and fluorescence reader.

Article Abstract

is a common genital mycoplasma in men and women, which can cause reproductive tract infection and infertility, and is also related to adverse pregnancy outcomes and neonatal diseases. Pathogen culture and polymerase chain reaction (PCR) are the main methods for the diagnosis of . However, pathogen culture takes too long, and PCR requires professional personnel and sophisticated instruments. Here, we report a simple, convenient, sensitive, and specific detection method, which combines catalytic hairpin assembly with a lateral flow immunoassay strip. Only a water bath and a fluorescence reader are needed to detect the results in 30 min. We can realize the point-of-care testing of by this method. To verify this method, we selected 10 clinical samples for testing, and the test results were exactly the same as the clinical report.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9520684PMC
http://dx.doi.org/10.1021/acsomega.2c02457DOI Listing

Publication Analysis

Top Keywords

catalytic hairpin
8
hairpin assembly
8
lateral flow
8
flow immunoassay
8
immunoassay strip
8
pathogen culture
8
detection catalytic
4
assembly combined
4
combined lateral
4
strip common
4

Similar Publications

Starch accumulation in plants provides carbon for nighttime use, for regrowth after periods of dormancy, and for times of stress. Both ɑ- and β-amylases (AMYs and BAMs, respectively) catalyze starch hydrolysis, but their functional roles are unclear. Moreover, the presence of catalytically inactive amylases that show starch excess phenotypes when deleted presents questions on how starch degradation is regulated.

View Article and Find Full Text PDF

Alkylated DNA repair by a novel HhH-GPD family protein from Crenarchaea.

Nucleic Acids Res

January 2025

College of Plant Protection, Agricultural University of Hebei, No. 2596 Lekai South Street, Baoding City, Lianchi District, Hebei Province 071001, China.

HhH-GPD (helix-hairpin-helix-glycine/proline/aspartate) family proteins are involved in DNA damage repair. Currently, mechanism of alkylated DNA repair in Crenarchaea has not been fully clarified. The hyperthermophilic model crenarchaeon Saccharolobus islandicus REY15A possesses a novel HhH-GPD family protein (Sis-HhH-GPD), where its Ser152 corresponds to a conserved catalytic Asp in other HhH-GPD homologs.

View Article and Find Full Text PDF

Highly sensitive and catalytic electrochemical aptamer-based biosensor for β-lactoglobulin via coupling redox recycling background minimization with DNAzyme amplification.

Anal Chim Acta

February 2025

Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China. Electronic address:

Background: β-lactoglobulin (β-Lg), a major allergen in dairy products, can trigger severe allergic reactions and even fatal outcomes in infants. In this work, we develop a new low background current redox recycling strategy by conjugating the electrochemical mediator to trimetallic hybrid nanoparticles (NPs)-dispersed graphene as the signal tag, which is coupled with DNAzyme amplifications to construct highly catalytic and ultrasensitive β-Lg aptasensor.

Results: Target β-Lg molecules bind aptamers in DNAzyme/aptamer duplexes to release active DNAzymes to initiate cyclic cleavage of hairpin substrates.

View Article and Find Full Text PDF

Applying hollow octahedron PtNPs/Pd-CuO nanozyme and highly conductive AuPtNPs/Ni-Co NCs to colorimetric -electrochemical dual-mode aptasensor for AFB1 detection.

Anal Chim Acta

February 2025

College of Food Science and Technology, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Zhengzhou, 450001, China.

Background: Aflatoxin B1 (AFB1) is a secondary metabolite produced by Aspergillus flavus and Aspergillus parasiticus. This toxin is highly carcinogenic and toxic, posing a serious threat to human and animal health. AFB1 primarily enters the human body through contaminated food, particularly peanuts, corn, nuts, and wheat.

View Article and Find Full Text PDF

Since microRNAs (miRNAs) serve as markers for early cancer diagnosis, it is crucial to develop a novel biosensor to detect miRNAs quickly, sensitively and selectively. Hence, we developed a fluorescence biosensor based on target miRNA-initiated rolling circle amplification (RCA) to generate RCA products with multiple tandem catalytic hairpin DNA templates that trigger primer exchange reactions (PER) which extend short single-strand DNA (ssDNA) primers into long ssDNA. Subsequently, the long ssDNA activates the -cleavage activity of the clustered regularly interspaced short palindromic repeats (CRISPR)/Cas12a system to cleave a fluorescent reporter chain, enabling ultrasensitive detection of miRNAs through the output fluorescence signal.

View Article and Find Full Text PDF

Want 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!