Biogenic preparation and characterization of Pyropia yezoensis silver nanoparticles (P.y AgNPs) and their antibacterial activity against Pseudomonas aeruginosa

Ulagesan, Selvakumari; Nam, Taek‐Jeong; Choi, Youn‐Hee

doi:10.1007/s00449-020-02454-x

Cited by 27 publications

(11 citation statements)

References 45 publications

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“…The diameters of inhibition zones produced by Tm-AgNPs were 4.2 mm, 11.1 mm, and 12.4 mm, respectively. Similarly, Ulagesan et al [ 50 ] discovered that the inhibition zone produced by AgNPs in the solid culture of Pseudomonas aeruginosa is related to the concentration. The higher the concentration, the larger the inhibition zone.…”

Section: Resultsmentioning

confidence: 99%

Bioinspired Green Synthesis of Silver Nanoparticles Using Three Plant Extracts and Their Antibacterial Activity against Rice Bacterial Leaf Blight Pathogen Xanthomonas oryzae pv. oryzae

Tian

Luo²,

Wang

et al. 2022

Plants

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Rice bacterial leaf blight caused by Xanthomonas oryzae pv. oryzae (Xoo) is responsible for a significant reduction in rice production. Due to the small impact on the environment, biogenic nanomaterials are regarded as a new type of antibacterial agent. In this research, three colloids of silver nanoparticles (AgNPs) were synthesized with different biological materials such as Arctium lappa fruit, Solanum melongena leaves, and Taraxacum mongolicum leaves, and called Al-AgNPs, Sm-AgNPs and Tm-AgNPs, respectively. The appearance of brown colloids and the UV-Visible spectroscopy analysis proved the successful synthesis of the three colloids of AgNPs. Moreover, FTIR and XRD analysis revealed the formation of AgNPs structure. The SEM and TEM analysis indicated that the average diameters of the three synthesized spherical AgNPs were 20.18 nm, 21.00 nm, and 40.08 nm, respectively. The three botanical AgNPs had the strongest bacteriostatic against Xoo strain C2 at 20 μg/mL with the inhibition zone of 16.5 mm, 14.5 mm, and 12.4 mm, while bacterial numbers in a liquid broth (measured by OD600) decreased by 72.10%, 68.19%, and 65.60%, respectively. Results showed that the three AgNPs could inhibit biofilm formation and swarming motility of Xoo. The ultrastructural observation showed that Al-AgNPs adhered to the surface of bacteria and broke the bacteria. Overall, the three synthetic AgNPs could be used to inhibit the pathogen Xoo of rice bacterial leaf blight.

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Section: Resultsmentioning

confidence: 99%

Bioinspired Green Synthesis of Silver Nanoparticles Using Three Plant Extracts and Their Antibacterial Activity against Rice Bacterial Leaf Blight Pathogen Xanthomonas oryzae pv. oryzae

Tian

Luo²,

Wang

et al. 2022

Plants

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“…Gram-positive and Gram-negative bacterial strains were used to study the antibacterial properties of AgNPs. The growth of Pseudomonas aeruginosa was reduced at concentration of 200 and 400 µg/mL by using Pyropia yezoensis AgNPs [ 39 ]. Algal species that have been extensively used in the past for the biosynthesis of AgNPs are listed in Table 2 .…”

Section: Green Synthesis Of Agnpsmentioning

confidence: 99%

Silver Nanoparticles Biosynthesis, Characterization, Antimicrobial Activities, Applications, Cytotoxicity and Safety Issues: An Updated Review

et al. 2021

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Rapid advances in nanotechnology have led to its emergence as a tool for the development of green synthesized noble metal nanoparticles, especially silver nanoparticles (AgNPs), for applications in diverse fields such as human health, the environment and industry. The importance of AgNPs is because of their unique physicochemical and antimicrobial properties, with a myriad of activities that are applicable in various fields, including the pharmaceutical industry. Countries with high biodiversity require the collection and transformation of information about biological assets into processes, associations, methods and tools that must be combined with the sustainable utilization of biological diversity. Therefore, this review paper discusses the applicable studies of the biosynthesis of AgNPs and their antimicrobial activities towards microorganisms in different areas viz. medicine and agriculture. The confirmed antiviral properties of AgNPs promote their applicability for SARS-CoV-2 treatment, based on assimilating the virus’ activities with those of similar viruses via in vivo studies. In this review, an insight into the cytotoxicity and safety issues of AgNPs, along with their future prospects, is also provided.

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“…The bands at 663.51 cm -1 related to carboxylate. While, 582.50 cm -1 represents secondary alcohol (CO) stretch as shown in figure .FTIR spectra were analysed to detect biomolecules that involve in Ag+ reduction (40). The FTIR analysis in this study indicated the involvement of carboxyl, amino, amides groups and polyphenols in the synthesized green AgNPs.…”

Section: Fourier Transform Infrared Spectroscopy (Ftir)mentioning

confidence: 66%

effect and characterizations of silver nanoparticles on biofilm formation in Pseudomonas aeruginosa isolated from UTIs patients

Al-Shabbani

Al-Azawi

2022

ijhs

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Background: Urinary tract infection (UTI) is a common health problem in both community and nosocomial settings, affecting both men and women equally.Pseudomonas aeruginosa is an opportunistic human pathogen causing devastating acuteand chronic infections in individuals with compromised immune systems. Biofilmis an architecture built mostly by autogenic extracellular polymeric substances which function asa scaffold to encase the bacteria together on surfaces, and to protect them from environmentalstresses, impedes phagocytosis and thereby conferring the capacity for colonization and long-termpersistence.The present study aim to evaluate the antibacterial activity of chemo-synthesized AgNPs onbiofilm-forming XDR Pseudomonas aeruginosaisolated from UTIs patients. Methods: These study was conducted in Al-Qadisiyah province, Iraq at five major hospitals (AL-Diwanyia Teaching Hospital,Feminine and children teaching hospital, Afak General Hospital, AL-Hamzah General Hospital and AL-Shamiya General Hospital) during the period from (November, 2020 to June, 2021). A total of 800 urine samples were collected from male and females referring to five major hospitals. The age of the patients ranged from (1 to 80) years-old. Results:Sixty isolates were showed positive and identified as P. aeruginosa by using selective media, biochemical test system and VITEK-2 compact system. Genetically, in the present study, a total DNA was extracted from all clinical P.aeruginosa isolates.

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Biogenic preparation and characterization of Pyropia yezoensis silver nanoparticles (P.y AgNPs) and their antibacterial activity against Pseudomonas aeruginosa

Cited by 27 publications

References 45 publications

Bioinspired Green Synthesis of Silver Nanoparticles Using Three Plant Extracts and Their Antibacterial Activity against Rice Bacterial Leaf Blight Pathogen Xanthomonas oryzae pv. oryzae

Bioinspired Green Synthesis of Silver Nanoparticles Using Three Plant Extracts and Their Antibacterial Activity against Rice Bacterial Leaf Blight Pathogen Xanthomonas oryzae pv. oryzae

Silver Nanoparticles Biosynthesis, Characterization, Antimicrobial Activities, Applications, Cytotoxicity and Safety Issues: An Updated Review

effect and characterizations of silver nanoparticles on biofilm formation in Pseudomonas aeruginosa isolated from UTIs patients

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