Green synthesis of silver nanoparticles by bloom forming marine microalgae Trichodesmium erythraeum and its applications in antioxidant, drug-resistant bacteria, and cytotoxicity activity

Sathishkumar, R; Sundaramanickam, Arumugam; Srinath, Rao; Ramesh, T.; Saranya, K.; Meena, Moorthy; Surya, Parthasarathy

doi:10.1016/j.jscs.2019.07.008

Cited by 107 publications

(39 citation statements)

References 49 publications

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“…The extract of Trichodesmium erythraeum was utilized for preparing silver nanoparticles [148]. The diameter of prepared nanoparticles was 26.5 nm.…”

Section: Inorganic Nanosystemsmentioning

confidence: 99%

Nanomedicine Fight against Antibacterial Resistance: An Overview of the Recent Pharmaceutical Innovations

et al. 2020

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Based on the recent reports of World Health Organization, increased antibiotic resistance prevalence among bacteria represents the greatest challenge to human health. In addition, the poor solubility, stability, and side effects that lead to inefficiency of the current antibacterial therapy prompted the researchers to explore new innovative strategies to overcome such resilient microbes. Hence, novel antibiotic delivery systems are in high demand. Nanotechnology has attracted considerable interest due to their favored physicochemical properties, drug targeting efficiency, enhanced uptake, and biodistribution. The present review focuses on the recent applications of organic (liposomes, lipid-based nanoparticles, polymeric micelles, and polymeric nanoparticles), and inorganic (silver, silica, magnetic, zinc oxide (ZnO), cobalt, selenium, and cadmium) nanosystems in the domain of antibacterial delivery. We provide a concise description of the characteristics of each system that render it suitable as an antibacterial delivery agent. We also highlight the recent promising innovations used to overcome antibacterial resistance, including the use of lipid polymer nanoparticles, nonlamellar liquid crystalline nanoparticles, anti-microbial oligonucleotides, smart responsive materials, cationic peptides, and natural compounds. We further discuss the applications of antimicrobial photodynamic therapy, combination drug therapy, nano antibiotic strategy, and phage therapy, and their impact on evading antibacterial resistance. Finally, we report on the formulations that made their way towards clinical application.

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“…The extract of Trichodesmium erythraeum was utilized for preparing silver nanoparticles [148]. The diameter of prepared nanoparticles was 26.5 nm.…”

Section: Inorganic Nanosystemsmentioning

confidence: 99%

Nanomedicine Fight against Antibacterial Resistance: An Overview of the Recent Pharmaceutical Innovations

et al. 2020

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“…Al‐Dhabi‐89 of N‐cadherin showed the MIC values of 7.81 to 62.5 µg/mL against the five strains (Al‐Dhabi, Ghilan, Arasu, & Duraipandiyan, 2018). Additionally, NPs with Trichodesmium erythraeum had better antibacterial activity against the clinical strains such as S. Aureus and Proteus mirabilis and drug‐resistant bacterial strains such as E. coli , S. aureus , and Streptococcus pneumoniae (Sathishkumar et al., 2019). Also, in an in vitro study on S. pneumoniae , AgNPs presented the highest inhibition zone 23 mm, whereas MIC and MBC values were 0.625 and ≤2.5 µg/mL, respectively (Sanjivkumar et al., 2019).…”

Section: Functional Properties Of Nanotechnology‐based Antioxidantsmentioning

confidence: 99%

Bioavailability and antioxidant activity of nanotechnology‐based botanic antioxidants

Myint

Xia

et al. 2021

Journal of Food Science

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Botanic bioactive substances have issues with their solubility, stability, and oral bioavailability in the application, which could be improved by nanotechnologies. In another hands, green synthesis of nanoparticles (NPs) with plant extract is also a promising technology for preparation of NPs due to its safety advantage, yet the bioactive botanic substances that could be more than the assistant of the green synthesis of NPs. Based on the above concerns, this review summarized the preparation of botanic NPs with various plant extract, their solubility, stability, and oral bioavailability; specific attention has been paid to the botanic Ag/Au NPs, their capacity of antioxidant, bioavailability, antimicrobial, anti‐inflammatory, and anticancer.

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“…The DPPH radical scavenging activity in each extract was calculated from a calibration curve (Y = 149.11x − 0.7773; R 2 = 0.9977) considering the reduction ratio as Y and using Trolox as a standard. The results were given as mmol Trolox equivalent (TE) g −1 dw [84].…”

Section: Determination Of the Dpph Radical Scavenging Activitymentioning

confidence: 99%

Recovery and Stabilization of Anthocyanins and Phenolic Antioxidants of Roselle (Hibiscus sabdariffa L.) with Hydrophilic Deep Eutectic Solvents

et al. 2020

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: Deep eutectic solvents (DESs) have got huge interest as new green and sustainable solvents for the extraction of bioactive compounds from plants in recent decades. In the present study, we aimed to investigate the effectiveness of hydrophilic DES for the extraction of anthocyanin and polyphenol antioxidants from Roselle. A natural hydrophilic DES constituted of sodium acetate (hydrogen bond acceptor) and formic acid (hydrogen bond donor) designed to evaluate the total phenolic compound (TPC), total flavonoid (TFC), total anthocyanin (TACN), 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging and ferric reducing antioxidant power (FRAP) values of Roselle. Distilled water, 70% ethanol, and 80% methanol used as conventional solvents for comparison. The results indicated that the DES prepared in molarity ratio (SAFAm) was the most efficient. Subsequently, this prominent DES selected for the optimization and the optimum extraction conditions were 1:3.6 molarity ratio, 0% additional water, and 10 mL solvent. TPC, TFC, TACN, FRAP, and DPPH radical scavenging at the optimum point were 233.26 mg GAE/g, 10.14 mg ECE/g, 10.62 mg D3S/g, 493.45 mmol ISE/g, and 343.41 mmol TE/g, respectively. The stability tests showed that anthocyanins were more stable in SAFAm. These findings revealed that SAFAm is an effective green solvent for the extraction of polyphenols from various plants.

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Green synthesis of silver nanoparticles by bloom forming marine microalgae Trichodesmium erythraeum and its applications in antioxidant, drug-resistant bacteria, and cytotoxicity activity

Cited by 107 publications

References 49 publications

Nanomedicine Fight against Antibacterial Resistance: An Overview of the Recent Pharmaceutical Innovations

Nanomedicine Fight against Antibacterial Resistance: An Overview of the Recent Pharmaceutical Innovations

Bioavailability and antioxidant activity of nanotechnology‐based botanic antioxidants

Recovery and Stabilization of Anthocyanins and Phenolic Antioxidants of Roselle (Hibiscus sabdariffa L.) with Hydrophilic Deep Eutectic Solvents

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