Water Disinfection Using Novel Cyclodextrin Polyurethanes Containing Silver Nanoparticles Supported on Carbon Nanotubes

2009 ◽  
Vol 10 (1) ◽  
pp. 65-70 ◽  
Author(s):  
Lungile P. Lukhele ◽  
Bhekie B. Mamba ◽  
Maggy NB Momba ◽  
Rui W.M. Krause
Keyword(s):  
Carbon Nanotubes ◽  
Silver Nanoparticles ◽  
Water Disinfection

scholarly journals Synthesis of silver nanoparticles embedded with single-walled carbon nanotubes for printable elastic electrodes and sensors with high stability

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jae-Won Lee ◽  
Joon Young Cho ◽  
Mi Jeong Kim ◽  
Jung Hoon Kim ◽  
Jong Hwan Park ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Silver Nanoparticles ◽  
High Performance ◽  
Composite Films ◽  
Single Walled Carbon Nanotubes ◽  
Gauge Factor ◽  
Time Interval ◽  
Single Walled Carbon ◽  
Irradiation Energy ◽  
Walled Carbon Nanotubes

AbstractSoft electronic devices that are bendable and stretchable require stretchable electric or electronic components. Nanostructured conducting materials or soft conducting polymers are one of the most promising fillers to achieve high performance and durability. Here, we report silver nanoparticles (AgNPs) embedded with single-walled carbon nanotubes (SWCNTs) synthesized in aqueous solutions at room temperature, using NaBH4 as a reducing agent in the presence of highly oxidized SWCNTs as efficient nucleation agents. Elastic composite films composed of the AgNPs-embedded SWCNTs, Ag flake, and polydimethylsiloxane are irradiated with radiation from a Xenon flash lamp within a time interval of one second for efficient sintering of conductive fillers. Under high irradiation energy, the stretchable electrodes are created with a maximum conductivity of 4,907 S cm−1 and a highly stretchable stability of over 10,000 cycles under a 20% strain. Moreover, under a low irradiation energy, strain sensors with a gauge factor of 76 under a 20% strain and 5.4 under a 5% strain are fabricated. For practical demonstration, the fabricated stretchable electrode and strain sensor are attached to a human finger for detecting the motions of the finger.

scholarly journals Robust immobilization of anionic silver nanoparticles on cellulose filter paper toward a low-cost point-of-use water disinfection system with improved anti-biofouling properties

RSC Advances ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 4873-4882
Author(s):  
Gongyan Liu ◽  
Ruiquan Yu ◽  
Jing Jiang ◽  
Zhuang Ding ◽  
Jing Ma ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Filter Paper ◽  
Low Cost ◽  
Water Disinfection ◽  
Point Of Use ◽  
Cellulose Filter

Point-of-use water disinfection by GA@AgNPs-LA-FP.

Antimicrobial and Antibiofilm Effects of Silver Nanoparticles Produced by Yarrowia lipolytica Against Vegetative and Starved Shigella

NANO ◽  
2021 ◽  
pp. 2150088
Author(s):  
Kalthoum Chourabi ◽  
Lobna Elleuch ◽  
Salma Kloula ◽  
Ahmed Landoulsi ◽  
Abdelwaheb Chatti
Keyword(s):  
Silver Nanoparticles ◽  
Yarrowia Lipolytica ◽  
Nitrate Solution ◽  
Silver Nitrate Solution ◽  
Water Disinfection ◽  
Personal Hygiene ◽  
Visible Range ◽  
Significant Toxicity ◽  
Air Disinfection ◽  
The Stability

Silver nanoparticles have attracted much interest from scientists to develop nanosilver-based disinfectant products due to their unique properties of high antimicrobial activity. This study focused on biosynthesis, characterization, antimicrobial and antibiofilm effects of silver nanoparticles against vegetative and starved Shigella strains. The silver nanoparticles were synthesized using the yeast Yarrowia lipolytica and characterized by ultraviolet–visible spectroscopy, X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. The antimicrobial and antibiofilm activities of silver nanoparticles were tested against the growth of vegetative and starved Shigella strains. After the addition of silver nitrate solution to the supernatant of Y. lipolytica, we noticed the appearance of a brown-black coloration that suggested the formation of silver nanoparticles. The presence of silver nanoparticles was manifested by a maximum absorption in the ultraviolet–visible range, precisely at the wavelength 420[Formula: see text]nm. The crystalline nature and the stability of silver nanoparticles were confirmed, respectively, by XRD and FTIR analysis. The antibacterial activity of silver nanoparticles showed significant toxicity on Shigella strains indicating that the starved cells were more sensitive to treatment with silver nanoparticles than vegetative cells. Surprisingly, the biofilm formation had not been inhibited by silver nanoparticles for both vegetative and starved cells. In conclusion, a new class of nanosilver containing disinfectant nanoproducts will be promising for advanced environmental treatments including air disinfection, water disinfection, surface disinfection and personal hygiene that will help to prevent the further outbreak of diseases.

Effect of carbon nanotubes decorated with silver nanoparticles as hybrid filler on properties of natural rubber nanocomposites

2018 ◽  
Vol 136 (13) ◽  
pp. 47281 ◽  
Author(s):  
Apinya Krainoi ◽  
Claudia Kummerlöwe ◽  
Norbert Vennemann ◽  
Yeampon Nakaramontri ◽  
Skulrat Pichaiyut ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Silver Nanoparticles ◽  
Natural Rubber ◽  
Hybrid Filler ◽  
Rubber Nanocomposites

High flux microfiltration membranes with silver nanoparticles for water disinfection

2015 ◽  
Vol 56 (13) ◽  
pp. 3590-3598 ◽  
Author(s):  
Aline Marques Ferreira ◽  
Érica Barbosa Roque ◽  
Fabiana Valéria da Fonseca ◽  
Cristiano Piacsek Borges
Keyword(s):  
Silver Nanoparticles ◽  
Water Disinfection ◽  
High Flux ◽  
Microfiltration Membranes

Carbon nanotubes and silver nanoparticles for multifunctional conductive biopolymer composites

Carbon ◽  
2011 ◽  
Vol 49 (7) ◽  
pp. 2370-2379 ◽  
Author(s):  
E. Fortunati ◽  
F. D’Angelo ◽  
S. Martino ◽  
A. Orlacchio ◽  
J.M. Kenny ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Silver Nanoparticles ◽  
Biopolymer Composites
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