Relevant bibliographies by topics / Bactericidal sorbents

Academic literature on the topic 'Bactericidal sorbents'

Author: Grafiati
Published: 30 May 2022
Last updated: 31 May 2022

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Journal articles on the topic "Bactericidal sorbents"

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Glushankova, I. S., M. M. Kombarova, and A. S. Atanova. "Preparing Carbon Bactericide Sorbents from Waste Wood Boards." Voprosy sovremennoj nauki i praktiki. Universitet imeni V.I. Vernadskogo, no. 2(80) (2021): 007–15. http://dx.doi.org/10.17277/voprosy.2021.02.pp.007-015.

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The paper presents the results of research on the disposal of large-tonnage composite polymer waste - wood-particle boards by the method of catalytic low-temperature pyrolysis for preparation of carbon materials. Salts and nickel were used as catalysts. The influence of temperature, mass ratio “waste: metal ions” on the yield and properties of carbonizate was investigated. It was found that when pyrolysis is carried out at a temperature of 600 °C for 30 min in the presence of catalysts, carbon materials are formed with a developed porous structure and high sorption activity with respect to the methylene blue dye and iodine. It is shown that the metals catalyzing pyrolysis are incorporated into the processes of the forming sorbent. The studies carried out on the treatment of biologically active river water showed a high bactericidal ability of the obtained samples of sorbents. The developed method of catalytic pyrolysis of waste made it possible to obtain bactericidal carbon sorbents that can be used for deep additional purification and disinfection of biologically treated wastewater.
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Denisova, T. I., and D. I. Shvetz. "Modified Organosilica Adsorbents with Bactericidal Properties." Adsorption Science & Technology 20, no. 3 (April 2002): 285–93. http://dx.doi.org/10.1260/026361702760254469.

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The method of mathematical planning of experiments has been used to determine the optimal conditions for the formation of a two-component organosilica with various compositions modified by metal ions (CuII, ZnII) sorbed from their water–ammonia solutions. Through this method, modified forms of silico-polymethylsiloxanes (SG-PMS) containing 1–30 mg/g CuII ion [SG-PMS(Cu)] and 3–40 mg/g ZnII ion [SG-PMS(Zn)] were synthesized and their adsorption/structural characteristics established. The sorptive capacity of the organosilica sorbents and their modified forms towards pathogenic microflora ( E. coli, S. aureus, P. aeruginosa), which depend on the concentration of the modified component, the pH of the medium and the sorptional composition, has been evaluated. It was found that the sorption levels of microorganisms increased in the following sorbent-modified range: 30:70 wt% SG-PMS(Al) < 50:50 wt% SG-PMS(Zn) < 50:50 wt% SG-PMS(Cu) and attained values in the range of 81–98% for metal-containing forms depending on the pH of the medium and the nature of the microorganisms. Copper-containing forms of organosilica exhibited an inhibiting effect towards pathogenic microorganisms even at CuII ion-containing contents of only 1 mg/g.
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Loo, Siew-Leng, William B. Krantz, Anthony G. Fane, Xiao Hu, and Teik-Thye Lim. "Effect of synthesis routes on the properties and bactericidal activity of cryogels incorporated with silver nanoparticles." RSC Advances 5, no. 55 (2015): 44626–35. http://dx.doi.org/10.1039/c5ra08449k.

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Farberova, Еlena A., Anastasia Yu Katysheva, Elena A. Tingaeva, Sergey A. Smirnov, and Andrey G. Starostin. "RESEARCH OF POSSIBILITY OF USING CHEMICAL METHOD OF FINE METAL PARTICLES REDUCTION FOR BACTERICIDAL SORBENTS PRODUCTION." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 63, no. 3 (March 8, 2020): 46–53. http://dx.doi.org/10.6060/ivkkt.20206303.6047.

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The present paper is concerned with a research of sorption and bactericidal properties of the fine metal particles applied on the surface of active carbon fabric by chemical sedimentation method. The ascorbic acid and natrium borane were used in the study process as metals, copper and silver reducing agents. Influence of reducer and fine metal nature onto the porous structure, as well as bactericidal and sorption characteristics of obtained fibrous sorbent samples are shown. It is determined that use of ascorbic acid for synthesis of copper and silver fine particles on the active carbon fabrics surface leads to the considerable decrease in a specific surface and volumes of meso - and micropores of the obtained sorbent in comparison with initial active carbon fabric. When using the natrium borane as reducer of fine copper particles the decrease in a specific surface and volumes of sorption pores is also observed. However, when using the natrium borane, the active carbon fabric samples modified with silver particles or with their composition with fine copper particles, had the higher values of porous structure main characteristics in comparison with the initial active carbon fabric. The nature of distribution of fine metal particles at the active carbon fabric surface was investigated by the electronic microscopy method. It was found that during the chemical reduction process the particles of fine copper attached to active carbon fabric fibers, being almost evenly distributed at all surface of fabric. Particles of silver were located as crystal congestions along fibers. Sorption and bactericidal properties of the received samples of modified active carbon fabrics are investigated. Their high sensitivity to microorganism cells which remains during a long storage period is demonstrated. Herewith, the active carbon fabric, modified with particles of fine copper and silver, keeps high sorption properties.
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Leonidovna, Voropaeva Nadezda, Viktor Mikhailovich Mukhin, Revina Alexandra Anatolyevna, Busev Sergey Alekseevich, and Karpachev Vladimir Vladimirovich. "Reclamation Of Plant Wastes (Straw) And Obtaining (Nano) Chips With Bactericidal Properties Based On Them." GeoScience Engineering 61, no. 3 (September 1, 2015): 1–7. http://dx.doi.org/10.1515/gse-2015-0017.

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Abstract Rape, camelina, wheat and Jerusalem artichoke vegetable wastes (straw) as annually renewable raw materials were processed into activated carbons, which were modified with silver nanoparticles for carbonaceous sorbents to acquire specific properties, since carbonaceous sorbents are usually widely used in the food industry, agriculture, medicine and other fields of human activity. The technology to obtain active carbons from agricultural crop residues has been developed, active carbon physico-chemical and adsorption properties, textural characteristics have been studied, new functional carbon (nano) materials with antibacterial activity containing (nano) particles of silver have been obtained, their influence within (nano) chip composition on rape crop growth, development and yield has been studied. In the conducted field tests, the highest activity was noted when using the (nano) chip whose structure included RAC - camelina and silver nanoparticles. Besides, when nano chips are used for seed treatment, the yield increase makes up 11.6 % for nanoparticles containing Ag, for plant active carbons (PAC) (rape) with Ag this index makes up 28.1 %, for RAC (Camelina) with Ag it makes up 55.8 % (compared to the control variant), which can be explained by the differences in the sorption characteristics of the studied radio activated carbons. Our results and the previous studies of other authors can prove the fact that silver nanoparticles (including those being a part of (nano) chips) “get” into the biochemical processes and have a pronounced phytostimulating effect on plants, which was especially obvious when suppressing the activity of plant pathogenic microflora by silver nanoparticles.
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Martemianova, Irina, Luiza Nadeina, Evgenii Plotnikov, and Dmitrii Martemianov. "Modification of natural sorbent for providing it with bactericidal and bacteriostatic properties." MATEC Web of Conferences 85 (2016): 01030. http://dx.doi.org/10.1051/matecconf/20168501030.

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Anatolii, Semenov, Sakhno Tamara, Hmelnitska Yevgenia, and Semenova Nataliia. "Bactericidal Disinfection of Activated Carbon from Aerobic Microorganisms, Yeasts and Molds." International Journal of Basic Sciences and Applied Computing 8, no. 7 (March 30, 2022): 1–4. http://dx.doi.org/10.35940/ijbsac.g0472.038722.

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One of the reasons for non-compliance with the requirements of regulatory documentation of powdered materials, including drugs is microbiological contamination. The search for alternative technical approaches of bactericidal disinfection using modern physical methods is relevant for research. Checking the compliance of activated carbon «Silcarbon», which is used in medicine as a sorbent, showed that the number of fungi (TYMS) exceeds the permissible norms in several times. A number of experimental studies where ultraviolet light, a combination of UV radiation and ozonation were used have been performed to disinfect «Silcarbon» from microbiological contaminants. It is shown that optimal results can be achieved in terms of the content of molds and yeasts: the total amount does not exceed 70 CFU/g using a combination of UV radiation and ozonation. When using pulsed UV lamps with a flux density of 10000-10500 W/m2, the amount was 30 CFU/g, and for molds fungi 20 CFU/g, which meets the requirements of regulatory documents. In dependance on the method of disinfection use the total amount of microbiological contamination of «Silcarbon» ranges from 50 to 70 CFU/g.
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Molyanova, Galina Vasilyevna, Vasiliy Semyonovich Grigoryev, and Vladimir Viktorovich Ermakov. "Correction of physiological, biochemical and productive indicators of farm animals using mineral sorbent." BIO Web of Conferences 17 (2020): 00011. http://dx.doi.org/10.1051/bioconf/20201700011.

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When feeding 30-180-day old calves with mineral sorbent vodnite, the number of red blood cells increases by 4.17% (p≤0.05), the hemoglobin level increases by 9.4% (p≤0.05), total protein content by 6.44% (p≤0.01), albumin content by 4.60% (p≤0.001), the phagocytic activity of leukocytes by 12.42% (p≤0.05), the bactericidal activity by 6.47% (p≤0.05), the lysozyme activity by 10% (p≤0.05), the average daily weight gain of calves by 7.4%, the live weight by 7.6% (p≤0.01). In fresh cows fed with vodnite, physical and biochemical characteristic improve and the gross milk yield increases by 45–84 kg (p<0.05). Vodnite used for cattle increases the genetic productivity.
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Hendiani, Ina, Agus Susanto, Dyah Nindita Carolina, Rahmat Ibrahim, and Felisha Febriane Balatif. "Minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of mangosteen (Garcinia mangostana Linn.) rind extract against Aggregatibacter actinomycetemcomitans." Padjadjaran Journal of Dentistry 32, no. 2 (July 31, 2020). http://dx.doi.org/10.24198/pjd.vol32no2.27366.

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Introduction: The main contents of mangosteen (Garcinia mangostana Linn.) is xanthone with antibacterial activity. Aggregatibacter actinomycetemcomitans (A. actinomycetemcomitans) was a gram-negative, facultative anaerobic bacillus that causes periodontal diseases such as localised aggressive periodontitis (LAP). Mangosteen rind extract could inhibit the growth of Porphyromonas gingivalis and A. actinomycetemcomitans. This study was aimed to determine the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of mangosteen rind extract against A. actinomycetemcomitans. Methods: This study was an experimental and in-vitro study of antimicrobial properties of mangosteen (Garcinia mangostana Linn.).The extract of mangosteen was made by the maceration method using 70% ethanol solvent. A. actinomycetemcomitans (ATCC 43718) obtained from Laboratorium of Microbiology Airlangga University Surabaya. This study used a microdilution method and analysed using the Enzyme Linked Immune Sorbent Assay (ELISA). The determination of the MIC was measured using the formula for cell inhibition percentage. Three concentrations higher than the MIC standard were cultured on the Mueller Hinton agar. The lowest concentration on agar which was not found any growth of the bacterial colonies was determined as the MBC. Results: The results of this study indicated that the MIC and MBC of mangosteen rind extract against A. actinomycetemcomitans were 195.3 ppm and 1562.5 ppm, respectively. Conclusion: Mangosteen rind extract can inhibit and bactericide the growth of A. actinomycetemcomitans.
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Dissertations / Theses on the topic "Bactericidal sorbents"

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Сусь, Марія Олександрівна. "Дослідження і розробка процесу безпечної дезінфекції води знезаражувальними агентами неокисної дії." Doctoral thesis, Київ, 2015. https://ela.kpi.ua/handle/123456789/13824.

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