Silver/silver chloride (Ag/AgCl) nanoparticles synthesized from
            <i>Azadirachta indica</i>
            lalex and its antibiofilm activity against fluconazole resistant
            <i>Candida tropicalis</i>

Aboody, Mohammed Saleh Al

doi:10.1080/21691401.2019.1620257

Cited by 62 publications

(48 citation statements)

References 40 publications

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“…Expectedly, the N-H and C-N peaks are observed at around 1600 and 1500 cm −1 , respectively. The intense band at around 1100 cm −1 in the spectra is consistent with the vibration of C-O [31,32]. [31].…”

Section: Physical Appearance Of Synthesized Agnps/chitosan Nanofluidssupporting

confidence: 63%

“…The intense band at around 1100 cm −1 in the spectra is consistent with the vibration of C-O [31,32]. [31]. The peak in the region of 2870 cm −1 is assigned to the C-H stretching [31,32].…”

Section: Physical Appearance Of Synthesized Agnps/chitosan Nanofluidssupporting

confidence: 53%

“…[31]. The peak in the region of 2870 cm −1 is assigned to the C-H stretching [31,32]. Expectedly, the N-H and C-N peaks are observed at around 1600 and 1500 cm −1 , respectively.…”

Section: Physical Appearance Of Synthesized Agnps/chitosan Nanofluidsmentioning

confidence: 93%

“…The IR spectrum of the neat chitosan show distinct peaks at 3358. [31]. The peak in the region of 2870 cm −1 is assigned to the C-H stretching [31,32].…”

Section: Physical Appearance Of Synthesized Agnps/chitosan Nanofluidsmentioning

confidence: 99%

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Preparation of Silver/Chitosan Nanofluids Using Selected Plant Extracts: Characterization and Antimicrobial Studies against Gram-Positive and Gram-Negative Bacteria

et al. 2020

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Chitosan/silver nanofluids were prepared using Phoenix dactylifera (DPLE) or Rumex vesicarius (HEL) extracts as the reducing agent, characterized using Fourier-transform infrared spectroscopy (FTIR), ultraviolet–visible (UV-vis), X-ray diffraction (XRD), and transmission electron microscope (TEM). The antimicrobial effect of the nanofluids against Gram positive, Bacillus licheniformis, Staphylococcus haemolyticus, Bacillus cereus, and Micrococcus luteus, and Gram-negative Pseudomonas aeruginosa, Pseudomonas citronellolis, and Escherichia coli bacteria has been studied. The nanoparticles were polydispersed in the chitosan matrix and are highly stable. The zeta potential of the silver nanoparticles in DPLE- and HEL-mediated composites is +46 mV and +56 mV, respectively. The FTIR results reveal that the free carboxylate groups in the plant biomaterial took part in stabilization process. HEL is a stronger reducing agent than DPLE and nanoparticles generated with HEL are smaller (8.0–36 nm) than those produced with DPLE (10–43 nm). DPLE- and HEL-mediated composites effectively inhibit the growth of the studied bacteria but HEL-mediated composite exhibited higher effect. The higher antimicrobial activity of HEL-mediated composite is linked to the smaller nanoparticles. The foregoing results indicate that HEL extract can be used in the green production of potential antimicrobial chitosan/silver nanofluids for biomedical and packaging applications.

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Section: Physical Appearance Of Synthesized Agnps/chitosan Nanofluidssupporting

confidence: 63%

Section: Physical Appearance Of Synthesized Agnps/chitosan Nanofluidssupporting

confidence: 53%

“…[31]. The peak in the region of 2870 cm −1 is assigned to the C-H stretching [31,32]. Expectedly, the N-H and C-N peaks are observed at around 1600 and 1500 cm −1 , respectively.…”

Section: Physical Appearance Of Synthesized Agnps/chitosan Nanofluidsmentioning

confidence: 93%

“…The IR spectrum of the neat chitosan show distinct peaks at 3358. [31]. The peak in the region of 2870 cm −1 is assigned to the C-H stretching [31,32].…”

Section: Physical Appearance Of Synthesized Agnps/chitosan Nanofluidsmentioning

confidence: 99%

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Preparation of Silver/Chitosan Nanofluids Using Selected Plant Extracts: Characterization and Antimicrobial Studies against Gram-Positive and Gram-Negative Bacteria

et al. 2020

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“…Figure 8b indicates the presence of Ag metal and AgCl structure in the compound Cinn-AgNP-PI. Al Aboody confirms also the presence of an AgCl secondary phase in AgNPs samples synthesized using plant extract [81].…”

Section: X-ray Diffractionmentioning

confidence: 65%

“Smart” Antimicrobial Nanocomplexes with Potential to Decrease Surgical Site Infections (SSI)

et al. 2020

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The emergence of resistant pathogens is a burden on mankind and threatens the existence of our species. Natural and plant-derived antimicrobial agents need to be developed in the race against antibiotic resistance. Nanotechnology is a promising approach with a variety of products. Biosynthesized silver nanoparticles (AgNP) have good antimicrobial activity. We prepared AgNPs with trans-cinnamic acid (TCA) and povidone-iodine (PI) with increased antimicrobial activity. We synthesized also AgNPs with natural cinnamon bark extract (Cinn) in combination with PI and coated biodegradable Polyglycolic Acid (PGA) sutures with the new materials separately. These compounds (TCA-AgNP, TCA-AgNP-PI, Cinn-AgNP, and Cinn-AgNP-PI) and their dip-coated PGA sutures were tested against 10 reference strains of microorganisms and five antibiotics by zone inhibition with disc-and agar-well-diffusion methods. The new compounds TCA-AgNP-PI and Cinn-AgNP-PI are broad spectrum microbicidal agents and therefore potential coating materials for sutures to prevent Surgical Site Infections (SSI). TCA-AgNP-PI inhibits the studied pathogens stronger than Cinn-AgNP-PI in-vitro and on coated sutures. Dynamic light scattering (DLS), ultraviolet-visible spectroscopy (UV-Vis), Fourier Transform infrared spectroscopy (FT-IR), Raman, X-ray diffraction (XRD), microstructural analysis by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) confirmed the composition of TCA-AgNP-PI and Cinn-AgNP-PI. Smart solutions involving hybrid materials based on synergistic antimicrobial action have promising future perspectives to combat resistant microorganisms.Pharmaceutics 2020, 12, 361 2 of 36 20,000 related deaths in the United States in 2017 only and remains to be one of the important infection-associated mortality reasons [11,12]. The formation of biofilms on biotic and abiotic surfaces [13] paved the way for biofilm antibiotic tolerance as another major health threat [14,15]. This additional problem hampers the treatment of infections, most often gives rise to chronic infections, in the worst case to therapeutic failure, severe morbidity, and mortality [4]. More than 80% of microbial infections are caused by microbial biofilm formation and pose a severe health risk because treatment with antibiotics remains ineffective [16]. The incidence of chronic wound infections is increasing globally to alarming levels [17]. Chronic wounds are marked by high bacterial colonization and infection rates, which can be treated only by novel therapeutic approaches other than the use of conventional antibiotics [18,19]. Chronic wound tissues can contain microbiomes of complex communities with coexisting fungal and bacterial colonies of different strains within biofilms [20]. According to this inter-kingdom model, fungi like Candida albicans can offer structures for other bacteria (S. aureus, P. aeruginosa, Streptococcus spp., E. faecalis, E. coli, and Acinetobacter baumannii etc.) to attach, form intricate biofilms, and increase the resistance against any ...

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Optical Printing of Conductive Silver on Ultrasmooth Nanocellulose Paper for Flexible Electronics

et al. 2022

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The nanofibrillated cellulose paper (nanocellulose paper or nanopaper), which is flexible, transparent, ultrasmooth, and biodegradable, has emerged as a new substrate material for the next generation of paper‐based flexible electronics. Herein a visible light‐induced printing technique for depositing highly conductive silver (Ag) patterns on nanopaper is reported. The optical Ag printing process is simple to implement at room temperature and only requires nontoxic, low‐cost aqueous chemical solutions and an inexpensive light projection setup. The abundant carboxyl groups on the nanopaper enable efficient absorption of Ag+ ions on the nanopaper surface for light‐induced reduction of Ag+ into a thin film of densely packed silver nanoparticles (AgNPs). Chemical annealing of the deposited AgNPs further enhances the conductivity of the printed Ag patterns. The mechanical and electrical properties of the printed Ag patterns on nanopaper are characterized, and the application of the optical Ag printing technique fabricating the nanopaper‐based flexible circuits and electrochemical biosensors is also demonstrated. The optical printing technique will enable new designs and applications of nanopaper‐based flexible electronics.

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Silver/silver chloride (Ag/AgCl) nanoparticles synthesized from Azadirachta indica lalex and its antibiofilm activity against fluconazole resistant Candida tropicalis

Abstract: View related articles View Crossmark data Citing articles: 8 View citing articles Silver/silver chloride (Ag/AgCl) nanoparticles synthesized from Azadirachta indica lalex and its antibiofilm activity against fluconazole resistant Candida tropicalis

Cited by 62 publications

References 40 publications

Preparation of Silver/Chitosan Nanofluids Using Selected Plant Extracts: Characterization and Antimicrobial Studies against Gram-Positive and Gram-Negative Bacteria

Preparation of Silver/Chitosan Nanofluids Using Selected Plant Extracts: Characterization and Antimicrobial Studies against Gram-Positive and Gram-Negative Bacteria

“Smart” Antimicrobial Nanocomplexes with Potential to Decrease Surgical Site Infections (SSI)

Optical Printing of Conductive Silver on Ultrasmooth Nanocellulose Paper for Flexible Electronics

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