Green Synthesis of Selenium and Tellurium Nanoparticles: Current Trends, Biological Properties and Biomedical Applications

Zambonino, Marjorie C.; Quizhpe, Ernesto Mateo; Jaramillo, Francisco E; Rahman, Ashiqur; Vispo, Nelson Santiago; Jeffryes, Clayton; Dahoumane, Si Amar

doi:10.3390/ijms22030989

Cited by 107 publications

(93 citation statements)

References 285 publications

(364 reference statements)

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“…Inorganic NPs are commonly synthesized via three different approaches [ 10 , 11 , 12 , 13 ]. Biological methods rely on biomolecules [ 14 , 15 , 16 , 17 ], plants [ 18 ], fungi [ 19 , 20 ], yeast [ 21 , 22 , 23 ], algae [ 24 , 25 , 26 , 27 , 28 ], and living cells and organisms [ 29 , 30 ] to promote the synthesis of NPs [ 4 , 31 , 32 ]. On the other hand, physical methods often involve specialized equipment [ 33 , 34 , 35 ], while chemical routes usually require numerous chemicals [ 36 , 37 , 38 , 39 ].…”

Section: Introductionmentioning

confidence: 99%

Photochemical Synthesis of Gold and Silver Nanoparticles—A Review

et al. 2021

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Nanomaterials have supported important technological advances due to their unique properties and their applicability in various fields, such as biomedicine, catalysis, environment, energy, and electronics. This has triggered a tremendous increase in their demand. In turn, materials scientists have sought facile methods to produce nanomaterials of desired features, i.e., morphology, composition, colloidal stability, and surface chemistry, as these determine the targeted application. The advent of photoprocesses has enabled the easy, fast, scalable, and cost- and energy-effective production of metallic nanoparticles of controlled properties without the use of harmful reagents or sophisticated equipment. Herein, we overview the synthesis of gold and silver nanoparticles via photochemical routes. We extensively discuss the effect of varying the experimental parameters, such as the pH, exposure time, and source of irradiation, the use or not of reductants and surfactants, reagents’ nature and concentration, on the outcomes of these noble nanoparticles, namely, their size, shape, and colloidal stability. The hypothetical mechanisms that govern these green processes are discussed whenever available. Finally, we mention their applications and insights for future developments.

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Section: Introductionmentioning

confidence: 99%

Photochemical Synthesis of Gold and Silver Nanoparticles—A Review

et al. 2021

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“…Figure 2 c shows that the final nanocomposite of MoS 2 /Te experienced somewhat of a decrease in the size of its components, which was attributed to the presence of a higher molar concentration of the precursor compounds. Crowding of the precursor elements shows the change in the surrounding chemical environment, which is responsible for the decreased dimension of the synthesizing components [ 34 ]. Figure 2 d shows the HRTEM image of the composite with clear d-spacings of 0.62 nm for MoS 2 and 0.23 nm for the Te NRs [ 25 , 35 ], and the inset shows the Fast Fourier transform (FFT) image.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Molybdenum Sulfide/Tellurium Hetero-Composite by a Simple One-Pot Hydrothermal Technique for High-Performance Supercapacitor Electrode Material

et al. 2021

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It is necessary to investigate effective energy storage devices that can fulfill the requirements of short-term and long-term durable energy outputs. Here, we report a simple one-pot hydrothermal technique through which to fabricate the MoS2/Te nanocomposite to be used as an effective electrode material for high-performance supercapacitors. Comprehensive characterization of the as-fabricated nanomaterial was performed using FESEM, HRTEM, XRD, FTIR, XPS, etc., as well as electrochemical characterizations. The electrochemical characterization of the as-fabricated nanocomposite electrode material showed a high specific capacitance of 402.53 F g−1 from a galvanostatic charge-discharge (GCD) profile conducted at 1 A g−1 current density. The electrode material also showed significant rate performance with high cyclic stability reaching up to 92.30% under 4000 cycles of galvanostatic charge-discharge profile at a current density of 10 A g−1. The highly encouraging results obtained using this simple synthetic approach demonstrate that the hetero-structured nanocomposite of MoS2/Te electrode material could serve as a promising composite to use in effective supercapacitors or energy storage devices.

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“…В последние десятилетия в пищевой и медицинской промышленности в питательные среды для получения жидких культур лактобацилл вносят соединения селена с целью использования полученных культур в качестве закваски или функционального ингредиента для приготовления продуктов питания, обогащенных селеном [12,13,23]. Известно, что некоторые лактобактерии могут накапливать и биотрансформировать соли селена в селенаминокислоты, наноселен и/или летучие соединения селена [24,25]. Имеются данные о высокой переносимости лактобактериями селенита натрия -до 198 мг/л [25].…”

Section: обсуждение результатовunclassified

“…Известно, что некоторые лактобактерии могут накапливать и биотрансформировать соли селена в селенаминокислоты, наноселен и/или летучие соединения селена [24,25]. Имеются данные о высокой переносимости лактобактериями селенита натрия -до 198 мг/л [25]. Бактерии L. bulgaricus способны накапливать в цитоплазме и во внеклеточном пространстве нетоксичный селен.…”

Section: обсуждение результатовunclassified

“…В результате проведенных исследований отмечено, что при добавлении в питательную среду MRS раствора наноселена в концентрации от 0,05 до 0, 25 Отмечено, что при добавлении в питательную среду MRS раствора наноселена в концентрации 0,05-0,25 мг/л наблюдалось увеличение антагонистической активности штаммов лактобактерий L. casei IMB B-7343 и L. plantarum IMB B-7344 по отношению к фитопатогенной бак-терии X. campestris В-4102, по сравнению с контрольным вариантом. Наиболее высокая антагонистическая активность по отношению к X. cаmpestris В-4102, выявлена у штамма L. plantarum IMB B-7344: зона подавления роста фитопатогена составила 14,5-15 мм.…”

Section: рис 2 накопление биомассы культуры штамма L Plantarum Imb B-7344 на питательной среде Mrs с добавлением коллоидного раствора нанunclassified

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Effects of nanoselenium as a nutrient medium component on the main cultivation parameters and antagonistic activity of <i>Lactobacillus</i> strains

Омельченко

Ржевская

Крыжко

et al. 2021

Izvestiâ vuzov. Prikladnaâ himiâ i biotehnologiâ

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The study aims to establish the effect of nanoselenium on the growth and antagonistic activity of the Lactobacillus casei IMB B-7343 and Lactobacillus plantarum IMB B-7344 strains against the phytopathogenic bacterium Xanthomonas campestris B-4102. Selenium nanoparticles were obtained by reducing a solution of sodium selenite with L-cysteine in the presence of sodium alginate. The cultivation of Lactobacilliwas carried out in a MRS nutrient medium with the addition of a colloidal solution of nanoselenium at the following concentrations: 0.05; 0.1; 0.15; 0.2 and 0.25 mg/l (for selenium). Bacteria were cultured in a 96-well plate in a Multiskan FC photometer at 36 ºС under constant shaking. The antagonistic activity of the strains was studied by the method of agar blocks. It was found that the addition of nanoselenium to the nutrient medium at a concentration of 0.2 to 0.25 mg/l contributed to a decrease in the duration of the exponential growth phase by an average of 3 hours, as well as to a decrease in the biomass accumulation of the L. casei IMB B-7343 strain by 15.0%. The optical density of this strain culture was observed to increase by 15.9% in the stationary growth phase under the addition of a nanoselenium solution to the nutrient medium at a concentration of 0.15 mg/l. During the cultivation of the L. plantarum IMB B-7344 strain in an MRS nutrient medium with the addition of a colloidal solution of nanoselenium at a concentration of 0.05–0.25 mg/l in the exponential development phase, an acceleration of the culture growth on average by 5 hours relative to the control was observed. It was noted that, upon the addition of nanoselenium to the nutrient medium, an increase in the antagonistic activity of lactobacillus strains against the phytopathogenic bacterium X. campestris B-4102 was observed, particularly in the L. plantarum IMB B-7344 strain (the zone of inhibition of the phytopathogen growth was 14.5–15 mm).

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Green Synthesis of Selenium and Tellurium Nanoparticles: Current Trends, Biological Properties and Biomedical Applications

Cited by 107 publications

References 285 publications

Photochemical Synthesis of Gold and Silver Nanoparticles—A Review

Photochemical Synthesis of Gold and Silver Nanoparticles—A Review

Synthesis of Molybdenum Sulfide/Tellurium Hetero-Composite by a Simple One-Pot Hydrothermal Technique for High-Performance Supercapacitor Electrode Material

Effects of nanoselenium as a nutrient medium component on the main cultivation parameters and antagonistic activity of <i>Lactobacillus</i> strains

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