Advances in microbial biosynthesis of metal nanoparticles

Park, Tae Jung; Lee, Kyoung G.; Lee, Sang Yup

doi:10.1007/s00253-015-6904-7

Cited by 166 publications

(118 citation statements)

References 145 publications

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“…Beside, the physicochemical approaches, such as, microwave-assisted synthesis, hydrothermal, and electrodeposition methods (12) developed for the production of the nanostructures, the biosynthesis of NPs has been introduced as a safe, clean, non-toxic, and environmental-friendly methods (13,14). Some microorganisms such as Rhodobacter capsulatus (15), Acinetobacter haemolyticus (5), and Bacillus selenitireducens (16) have excellent capability in converting metalloid ions like tellurium into nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial and Antioxidant Activity of the Biologically Synthesized Tellurium Nanorods; A Preliminary In vitro Study

Shakibaie

Adeli-Sardou

Mohammadi-Khorsand

et al. 2017

Iran. J. Biotechnol.

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Background: Recent theranostic (therapeutic or diagnostic) applications of tellurium nanoparticles have attracted a great interest for development of diff erent methods for synthesis of this valuable nanostructure, especially via biological resources. Objectives: In the present study, the antimicrobial and antioxidant eff ects of the tellurium nanorods (Te NRs) biosynthesized by a bacterial strain Pseudomonas pseudoalcaligenes strain Te were evaluated. Materials and Methods:The antimicrobial eff ect of Te NRs and potassium tellurite against diff erent bacterial and fungal pathogens was assessed by microdilution method. Furthermore, the disk diff usion method was used to evaluate the antibacterial eff ect of the biogenic Te NRs and potassium tellurite against methicillin-resistant Staphylococcus aureus, alone or in combination with various antibiotics. Also, the biogenic Te NRs were investigated for antioxidant activity using 2, 2-diphenyl-1-picrylhydrazyl (DPPH) scavenging activity and reducing power assay. Results: Transmission electron micrograph (TEM) of the purifi ed Te NRs showed individual and rod-shaped nanostructure (~22 nm diameter by 185 nm in length). Based on the data obtained from both microdilution and disk diff usion method the K 2 TeO 3 exhibited a higher antibacterial and antifungal activity compared to the Te NRs. The measured IC 50 for the biogenic Te NRs (i.e. DPPH radical scavenging activity) was found to be 24.9 μg.mL -1 , while, K 2 TeO 3 has represented only 17.6 ± 0.8 % DPPH radical scavenging eff ect at the concentration of 160 μg.mL -1 . The reducing power assay revealed a higher electron-donating activity for Te NRs compared to K 2 TeO 3 . Conclusions: Based on the data obtained from both microdilution and disk diff usion method the K 2 TeO 3 exhibited a higher antimicrobial and antifungal activity than Te NRs. Te NRs didn't show the antibacterial eff ect against the tested bacterial strain: MRSA and showed an inhibitory eff ect and antibacterial activity of the eff ective antibiotics. However, more studies should be performed to explore the action mechanism of the produced biogenic Te NRs.

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Section: Introductionmentioning

confidence: 99%

Antimicrobial and Antioxidant Activity of the Biologically Synthesized Tellurium Nanorods; A Preliminary In vitro Study

Shakibaie

Adeli-Sardou

Mohammadi-Khorsand

et al. 2017

Iran. J. Biotechnol.

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“…Isolated from an air-exposed aqueous solution of K 3 Fe(CN) 6 24 h (5) aerobic (6) -Different from that observed in magnetotactic and iron-reducing bacteria.…”

Section: −)mentioning

confidence: 90%

“…In consequence, there has been much interest in the development of reliable, nontoxic, clean and environmentally friendly methods and protocols for the synthesis of NPs, which is reflected in the emergence of biological methods as an alternative to conventional approaches. Currently, several microorganisms and plant extracts have been explored for their ability to produce NPs …”

Section: Introductionmentioning

confidence: 99%

“…Currently, several microorganisms and plant extracts have been explored for their ability to produce NPs. [4][5][6] This paper provides an overview highlighting the main aspects of the microbial synthesis of metallic NPs by bacteria, such as parameters of synthesis, mechanisms reported, source of the precursor as well as environmental relevance and applications in water treatment systems, metal recovery and contaminants degradation. Each section summarizes fundamental information to give elements in order to discuss and conclude advances and gaps regarding nanoparticle synthesis by bacteria and their environmental applications.…”

Section: Introductionmentioning

confidence: 99%

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Microbial recovery of metallic nanoparticles from industrial wastes and their environmental applications

Pat-Espadas

Cervantes

2018

J of Chemical Tech & Biotech

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In recent years, metallic nanoparticles (NPs) have been produced by biological methods using bacteria and have been used with remarkable environmental applications. This paper emphasizes the basic aspects of microbial synthesis of metallic nanoparticles, from the selection of the strain to the settings of reaction parameters. Mechanisms involved in the microbial production of NPs are also discussed, summarizing general findings and implications in the process. There is also a section dedicated to the identification of wastes as a source of precious metals and the production of metallic NPs from waste streams containing ionic metals to give a vision of the opportunities to implement microbial synthesis as a treatment–recovery technology. Environmental applications of biogenic NPs are reviewed in detail indicating that the implementation of these nanomaterials enable the achievement of higher removal efficiencies and greater extent of transformation of recalcitrant compounds in wastewater treatment systems. Under this scenario and based on the information reviewed concluding remarks and futures perspectives are enunciated. © 2018 Society of Chemical Industry

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“…Different types of materials, including proteins 3 , metals 41 and polymers 42,43 are produced in microbial cells, among which many of them are intended for biomedical applications 44 . The adaptation and implementation of microorganisms alternative to gram negative bacteria is expanding the diversity of products resulting from biological fabrication, especially concerning difficult-to-express proteins [45][46][47][48][49] .…”

Section: Discussionmentioning

confidence: 99%

Conformational and functional variants of CD44-targeted protein nanoparticles bio-produced in bacteria

et al. 2016

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Biofabrication is gaining interest as a mean to produce nanostructured functional materials because of its operational versatility and full scalability. Materials based on proteins are especially appealing as protein structure and functionality are adaptable by genetic engineering. Furthermore, strategies and tools for protein production have been steadily developed and refined for more than 30 years. However, protein conformation and therefore activity might be sensitive to production conditions. We have explored here whether the downstream strategy influences structure and biological activities, in vitro and in vivo, of a self-assembling, CD44-targeted proteinonly nanoparticle produced in Escherichia coli. This has been done by the comparative analysis of particles built of soluble protein species or protein versions obtained by in vitro protein extraction from inclusion bodies, through mild, non-denaturing procedures.These methods have been recently developed as a convenient alternative to the use of toxic chaotropic agents for protein resolubilization from protein aggregates. The results indicate substantial differences in the physicochemical properties as well as in the biological performance at the systems level of the resulting material, whose building blocks show to be sensitive to the particular protein source.

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Advances in microbial biosynthesis of metal nanoparticles

Cited by 166 publications

References 145 publications

Antimicrobial and Antioxidant Activity of the Biologically Synthesized Tellurium Nanorods; A Preliminary In vitro Study

Antimicrobial and Antioxidant Activity of the Biologically Synthesized Tellurium Nanorods; A Preliminary In vitro Study

Microbial recovery of metallic nanoparticles from industrial wastes and their environmental applications

Conformational and functional variants of CD44-targeted protein nanoparticles bio-produced in bacteria

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