Highly Sensitive Depolarized Light Scattering To Monitor Aggregation of Spherical Gold Nanoparticles

2019 ◽  
Vol 123 (23) ◽  
pp. 14625-14631 ◽  
Author(s):  
Dooho Kang ◽  
Seong Youl Lee ◽  
Joon Heon Kim
Keyword(s):  
Gold Nanoparticles ◽  
Light Scattering ◽  
Highly Sensitive ◽  
Spherical Gold Nanoparticles ◽  
Depolarized Light Scattering

Depolarized light scattering from colloidal gold nanoparticles

2009 ◽  
Vol 468 (1-3) ◽  
pp. 69-74 ◽  
Author(s):  
Krystyna Drozdowicz-Tomsia ◽  
Fang Xie ◽  
Nils Calander ◽  
Ignacy Gryczynski ◽  
Karol Gryczynski ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Light Scattering ◽  
Colloidal Gold ◽  
Colloidal Gold Nanoparticles ◽  
Depolarized Light Scattering

scholarly journals Varied-shaped gold nanoparticles with nanogram killing efficiency as potential antimicrobial surface coatings for the medical devices

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ewelina Piktel ◽  
Łukasz Suprewicz ◽  
Joanna Depciuch ◽  
Sylwia Chmielewska ◽  
Karol Skłodowski ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Medical Devices ◽  
Multidrug Resistant ◽  
Resistance Mechanisms ◽  
Antimicrobial Spectrum ◽  
Antimicrobial Coatings ◽  
Low Toxicity ◽  
Spherical Gold Nanoparticles ◽  
Cost Efficient ◽  
Bactericidal Efficiency

AbstractMedical device-associated infections are a serious medical threat, particularly for patients with impaired mobility and/or advanced age. Despite a variety of antimicrobial coatings for medical devices being explored to date, only a limited number have been introduced for clinical use. Research into new bactericidal agents with the ability to eradicate pathogens, limit biofilm formation, and exhibit satisfactory biocompatibility, is therefore necessary and urgent. In this study, a series of varied-morphology gold nanoparticles in shapes of rods, peanuts, stars and spherical-like, porous ones with potent antibacterial activity were synthesized and thoroughly tested against spectrum of Candida albicans, Pseudomonas aeruginosa, Staphylococcus aureus clinical strains, as well as spectrum of uropathogenic Escherichia coli isolates. The optimization of gold nanoparticles synthesis allowed to develop nanomaterials, which are proved to be significantly more potent against tested microbes compared with the gold nanoformulations reported to date. Notably, their antimicrobial spectrum includes strains with different drug resistance mechanisms. Facile and cost-efficient synthesis of gold nanoparticles, remarkable bactericidal efficiency at nanogram doses, and low toxicity, underline their potential for development as a new coatings, as indicated by the example of urological catheters. The presented research fills a gap in microbial studies of non-spherical gold nanoparticles for the development of antimicrobial coatings targeting multidrug-resistant pathogens responsible for device-associated nosocomial infections.

Synthesis and application of polycation-stabilized gold nanoparticles as a highly sensitive sensor for molecular cysteine determination

2021 ◽  
pp. 106481
Author(s):  
Quang Khanh Nguyen ◽  
Thi Hieu Hoang ◽  
Xuan Thanh Bui ◽  
Thi Anh Huong Nguyen ◽  
Tien Duc Pham ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Highly Sensitive ◽  
Sensitive Sensor

scholarly journals A dual colorimetric probe for rapid environmental monitoring of Hg2+ and As3+ using gold nanoparticles functionalized with d-penicillamine

RSC Advances ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 5456-5465
Author(s):  
Su-Jin Yoon ◽  
Yun-Sik Nam ◽  
Yeonhee Lee ◽  
In Hwan Oh ◽  
Kang-Bong Lee
Keyword(s):  
Gold Nanoparticles ◽  
Environmental Monitoring ◽  
Colorimetric Assay ◽  
Colorimetric Probe ◽  
Highly Sensitive ◽  
Dual Detection

A highly sensitive and selective colorimetric assay for the dual detection of Hg2+ and As3+ using gold nanoparticles (AuNPs) conjugated with d-penicillamine (DPL) was developed.

A highly sensitive electrochemical microRNA-21 biosensor based on intercalating methylene blue signal amplification and a highly dispersed gold nanoparticles/graphene/polypyrrole composite

The Analyst ◽  
2021 ◽  
Vol 146 (8) ◽  
pp. 2679-2688
Author(s):  
Chammari Pothipor ◽  
Noppadol Aroonyadet ◽  
Suwussa Bamrungsap ◽  
Jaroon Jakmunee ◽  
Kontad Ounnunkad
Keyword(s):  
Methylene Blue ◽  
Gold Nanoparticles ◽  
Signal Amplification ◽  
Electrochemical Biosensor ◽  
Highly Sensitive ◽  
Highly Dispersed ◽  
Polypyrrole Composite ◽  
Amplification Strategy ◽  
Dispersed Gold ◽  
Potential Tool

An ultrasensitive electrochemical biosensor based on a gold nanoparticles/graphene/polypyrrole composite modified electrode and a signal amplification strategy employing methylene blue is developed as a potential tool for the detection of miRNA-21.

Highly sensitive detection of hesperidin using AuNPs/rGO modified glassy carbon electrode

The Analyst ◽  
2018 ◽  
Vol 143 (1) ◽  
pp. 297-303 ◽  
Author(s):  
Yang Gao ◽  
Xiufeng Wu ◽  
Hui Wang ◽  
Wenbo Lu ◽  
Mandong Guo
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode ◽  
Reduced Graphene ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

The highly sensitive and selective electrochemical sensor of hesperidin based on gold nanoparticles (AuNPs) and reduced graphene oxide (rGO) modified glassy carbon electrode (GCE) is reported.

Sign in / Sign up

Export Citation Format

Share Document