Analysis of antibiofilm activity gold and silver nanoparticles against uropathogenic Escherichia coli using confocal laser scanning microscopy DOI Creative Commons
Rini Purbowati, Fuad Ama, Lusiani Tjandra

et al.

Berkala Penelitian Hayati, Journal Year: 2023, Volume and Issue: 29(3), P. 106 - 112

Published: Dec. 30, 2023

Infectious diseases, including urinary tract infections (UTIs), significantly impact global health, diminishing the quality of life and increasing clinical economic burdens. Concerns arise due to potential development antimicrobial resistance (AMR) facilitated by biofilm formation. Nanotechnology, specifically silver nanoparticles (1–100 nm), proves effective against bacterial strains, making them valuable in biomedical field. Advances microscopic imaging techniques, such as Confocal Laser Scanning Microscopy (CLSM), enhance our understanding biofilms. This study aims assess effectiveness optimal concentration gold combating biofilms formed uropathogenic Escherichia coli (UPEC) through CLSM analysis. The research comprises following stages: rejuvenation isolates inoculum preparation, testing anti-biofilm activity at concentrations 25, 50, 75, 100 ppm UPEC using findings reveal that both exhibit ppm, confirmed for is identified ppm.

Language: Английский

Analysis of antibiofilm activity gold and silver nanoparticles against uropathogenic Escherichia coli using confocal laser scanning microscopy DOI Creative Commons
Rini Purbowati, Fuad Ama, Lusiani Tjandra

et al.

Berkala Penelitian Hayati, Journal Year: 2024, Volume and Issue: 30(1), P. 8 - 14

Published: Feb. 6, 2024

Infectious diseases, including urinary tract infections (UTIs), significantly impact global health, diminishing the quality of life and increasing clinical economic burdens. Concerns arise due to potential development antimicrobial resistance (AMR) facilitated by biofilm formation. Nanotechnology, specifically silver nanoparticles (1–100 nm), proves effective against bacterial strains, making them valuable in biomedical field. Advances microscopic imaging techniques, such as Confocal Laser Scanning Microscopy (CLSM), enhance our understanding biofilms. This study aims assess effectiveness optimal concentration gold combating biofilms formed uropathogenic Escherichia coli (UPEC) through CLSM analysis. The research comprises following stages: rejuvenation isolates inoculum preparation, testing anti-biofilm activity at concentrations 25, 50, 75, 100 ppm UPEC using findings reveal that both exhibit ppm, confirmed for is identified ppm.

Language: Английский

Citations

0

A semi-automated image processing method for analysing the taxonomic composition of algal biofilms DOI Creative Commons
Zoltán Novàk, Gábor Bernát, Gábor Steinbach

et al.

Journal of Applied Phycology, Journal Year: 2024, Volume and Issue: 36(6), P. 3163 - 3173

Published: Aug. 26, 2024

Abstract Benthic phototrophic communities play a crucial role in the functioning of shallow lake ecosystems. The complexity benthic algal poses challenges for exploring their fine structures using traditional methods such as light microscopy. However, confocal laser scanning microscopy (CLSM) offers potential microscale-level structural investigation biofilms, thereby contributing to deeper understanding and compositional changes within these communities. primary objective this study was develop relatively rapid, semi-automated, freely available image processing method facilitate tracking spatio-temporal alterations intact biofilms. To evaluate our method, we conducted an eight-week long outdoor mesocosm experiment, manipulating temperatures based on two global warming scenarios (assuming intermediate- high degree greenhouse gas emission), with increases 3°C 5°C, respectively, compared reference/unheated mesocosms. Eight limestone cubes were placed bottom each provide 'natural' surfaces phytobenthos colonization, which subsequently analysed by We hypothesized that increasing water temperature might have significant impact taxonomic composition particularly abundance prokaryotes eukaryotes. designed 'FIJI macro' efficiently recorded images, including single series Z-stack projection images. Our effectively discriminated photosynthetic eukaryotes pigment proved suitable high-throughput analysis Moreover, confirmed climate-induced can lead dominance cyanobacteria at expense eukaryotic algae.

Language: Английский

Citations

0

In-Situ Monitoring of Quorum Sensing Signaling Molecules in Bacterial Biofilms by a SERS Chip with Array Micro-Chambers DOI
Lulu Liu, Wenrui Ma,

Haolan Tan

et al.

Published: Jan. 1, 2023

The monitoring of signaling molecules related quorum sensing (QS) in bacterial biofilms was crucial for the better understanding how QS influenced biofilm formation. In this paper, a SERS microfluidic chip integrated with array micro-chambers and Nano-silver substrate fabricated Pseudomonas aeruginosa biofilms. self-assembled showed good homogeneity stability enhancement factor up to 1.84×108, which guaranteed detection sensitivity molecules. dynamic change pyocyanine, as an important signal molecule, monitored during growth by comparing peak intensity at 1350 cm-1. By using same chip, inhibitory effects different drugs including conventional antibiotics (ceftazidime), well natural antibacterial components (curcumin tannic acid) were also investigated. order inhibition effect on pseudomonas turns ceftazidime > curcumin acid. secretion period pyocyanin affected treatment. Furthermore, pyocyanine secreted confirmed mass spectrometry (MS) concentration relationship obtained MS/MS consistent detection. proposed method based had advantages in-situ detection, flexibility efficiency.

Language: Английский

Citations

0

Analysis of antibiofilm activity gold and silver nanoparticles against uropathogenic Escherichia coli using confocal laser scanning microscopy DOI Creative Commons
Rini Purbowati, Fuad Ama, Lusiani Tjandra

et al.

Berkala Penelitian Hayati, Journal Year: 2023, Volume and Issue: 29(3), P. 106 - 112

Published: Dec. 30, 2023

Infectious diseases, including urinary tract infections (UTIs), significantly impact global health, diminishing the quality of life and increasing clinical economic burdens. Concerns arise due to potential development antimicrobial resistance (AMR) facilitated by biofilm formation. Nanotechnology, specifically silver nanoparticles (1–100 nm), proves effective against bacterial strains, making them valuable in biomedical field. Advances microscopic imaging techniques, such as Confocal Laser Scanning Microscopy (CLSM), enhance our understanding biofilms. This study aims assess effectiveness optimal concentration gold combating biofilms formed uropathogenic Escherichia coli (UPEC) through CLSM analysis. The research comprises following stages: rejuvenation isolates inoculum preparation, testing anti-biofilm activity at concentrations 25, 50, 75, 100 ppm UPEC using findings reveal that both exhibit ppm, confirmed for is identified ppm.

Language: Английский

Citations

0