The Experts below are selected from a list of 42783 Experts worldwide ranked by ideXlab platform
Fuchu Yang - One of the best experts on this subject based on the ideXlab platform.
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preparation and characterization of functional fabrics from bamboo charcoal silver and titanium dioxide silver composite powders and evaluation of their antibacterial efficacy
Materials Science and Engineering: C, 2012Co-Authors: Fuchu Yang, Jenwei Huang, Dengnan Horng, Chiafeng LiangAbstract:Abstract Bamboo charcoal supporting silver (BC/Ag) and titanium dioxide supporting silver (TiO2/Ag) were prepared by activation and chemical reduction. The BC/Ag and TiO2/Ag composites were characterized by silver particle size and distribution and antibacterial properties. The pore and surface properties were studied in terms of BET volumetric measurement with nitrogen adsorption, X-ray diffraction (XRD), and scanning electron microscopy (SEM). The antibacterial effects of the BC/Ag and TiO2/Ag composite powders were assessed from the minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs), and an excellent antibacterial performance was discovered. Moreover, these composite powders were deposited via immersion coating onto fabrics (nonwoven and carbon fibers) to improve the antibacterial efficacy and to act as a biologically-Protective Material. The antibacterial activities of the fabrics supported by BC/Ag and TiO2/Ag were studied in zone of inhibition and plate counting tests against Gram-positive Staphylococcus aureus ME/GM/TC Resistant, Bacillus subtilis, Candida albicans, Gram-negative Pseudomonas aeruginosae (CTZ&EM&GM) Res. Clin. Isol., Escherichia coli Juhl, and Klebsiella pneumoniae. The results showed that fabric-BC/Ag and fabric-TiO2/Ag possess a strong antibacterial activity and an inhibitory effect on the growth of these bacteria and are therefore believed to have great potential for use as antibacterial fabrics.
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evaluation of the antibacterial efficacy of bamboo charcoal silver biological Protective Material
Materials Chemistry and Physics, 2009Co-Authors: Fuchu Yang, Mingjie Liu, Wenpo LinAbstract:Abstract Bamboo charcoal supporting silver (BC/Ag) was prepared by activation and chemical reduction. The BC/Ag composites were characterized by silver particle size and distribution, silver ion (Ag + ) release and antibacterial properties. Scanning and transmission electron microscopy (SEM and TEM) showed that the Ag particles were distributed uniformly on the BC matrix. The Ag particle size was found to be less than 150 nm based on TEM. The Ag content and surface morphology of the BC/Ag composites depended on the initial concentration of AgNO 3 , and the higher the Ag content, the smaller the specific surface area obtained on the BC. The antibacterial effects of the BC/Ag composite powders were assessed from the minimum inhibitory concentrations (MICs) and by the plate-counting method, and an excellent antibacterial performance was discovered.
Wenpo Lin - One of the best experts on this subject based on the ideXlab platform.
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evaluation of the antibacterial efficacy of bamboo charcoal silver biological Protective Material
Materials Chemistry and Physics, 2009Co-Authors: Fuchu Yang, Mingjie Liu, Wenpo LinAbstract:Abstract Bamboo charcoal supporting silver (BC/Ag) was prepared by activation and chemical reduction. The BC/Ag composites were characterized by silver particle size and distribution, silver ion (Ag + ) release and antibacterial properties. Scanning and transmission electron microscopy (SEM and TEM) showed that the Ag particles were distributed uniformly on the BC matrix. The Ag particle size was found to be less than 150 nm based on TEM. The Ag content and surface morphology of the BC/Ag composites depended on the initial concentration of AgNO 3 , and the higher the Ag content, the smaller the specific surface area obtained on the BC. The antibacterial effects of the BC/Ag composite powders were assessed from the minimum inhibitory concentrations (MICs) and by the plate-counting method, and an excellent antibacterial performance was discovered.
Chiafeng Liang - One of the best experts on this subject based on the ideXlab platform.
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preparation and characterization of functional fabrics from bamboo charcoal silver and titanium dioxide silver composite powders and evaluation of their antibacterial efficacy
Materials Science and Engineering: C, 2012Co-Authors: Fuchu Yang, Jenwei Huang, Dengnan Horng, Chiafeng LiangAbstract:Abstract Bamboo charcoal supporting silver (BC/Ag) and titanium dioxide supporting silver (TiO2/Ag) were prepared by activation and chemical reduction. The BC/Ag and TiO2/Ag composites were characterized by silver particle size and distribution and antibacterial properties. The pore and surface properties were studied in terms of BET volumetric measurement with nitrogen adsorption, X-ray diffraction (XRD), and scanning electron microscopy (SEM). The antibacterial effects of the BC/Ag and TiO2/Ag composite powders were assessed from the minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs), and an excellent antibacterial performance was discovered. Moreover, these composite powders were deposited via immersion coating onto fabrics (nonwoven and carbon fibers) to improve the antibacterial efficacy and to act as a biologically-Protective Material. The antibacterial activities of the fabrics supported by BC/Ag and TiO2/Ag were studied in zone of inhibition and plate counting tests against Gram-positive Staphylococcus aureus ME/GM/TC Resistant, Bacillus subtilis, Candida albicans, Gram-negative Pseudomonas aeruginosae (CTZ&EM&GM) Res. Clin. Isol., Escherichia coli Juhl, and Klebsiella pneumoniae. The results showed that fabric-BC/Ag and fabric-TiO2/Ag possess a strong antibacterial activity and an inhibitory effect on the growth of these bacteria and are therefore believed to have great potential for use as antibacterial fabrics.
Choliq, Fery Abdul - One of the best experts on this subject based on the ideXlab platform.
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POTENSI FILTRAT TEH HITAM SEBAGAI PELINDUNG SINAR UV TERHADAP S/NPV JTM 97 C DALAM MENGENDALIKAN Helicoverpa armigera / Potency of Black Tea Filtrate as UV Protectant to S/NPV JTM 97 C in Controlling Helicoverpa armigera
Pusat Penelitian dan Pengembangan Perkebunan, 2020Co-Authors: Sari, Anella Retna Kumala, Ariestantia, Tiara Eka, Choliq, Fery AbdulAbstract:Helicoverpa armigera is the important pest on soybean which usually controlled by chemical insecticide spraying, so it should be replaced by naturally control using biological agents such as Spodoptera litura Nuclear Polyhedrosis Virus (S/NPV) JTM 97 C. It has some weakness such as during it’s applied in the field the effectiveness can become decreased after exposure the sunlight, especially ultraviolet (UV) so it needs the Protective Material, such as black tea filtrate which is known containing epigallocatechin gallate, caffeic acid, and apigenin which have role as UV protectors. This research aimed to investigate the potential of black tea filtrate to protect the S/NPV JTM 97 C from UV in controlling of H. armigera. The research was conducted in Pests and Diseases Laboratory on Indonesian Legumes and Tuber Crops Research Institute (ILETRI), Kendalpayak, Malang from January to June 2015. The research used Completely Randomized Design with seven treatments and four replications. They were S/NPV JTM 97 C without UV protectant as control (P1), S/NPV JTM 97 C + kaolin as comparison (P2), S/NPV JTM 97 C + black tea filtrate concentration 0.5 (P3), 1.0 (P4), 1.5 (P5), 2 (P6), and 2.5% (P7). Results showed that all of the Protective Materials of black tea filtrate were unable to provide mortality of H. armigera larvae better than kaolin. Kaolin can cause mortality of H. armigera larvae up to 82,50%. All of Black tea filtrate concentrations tested were not able to be used as protectant of S/NPV JTM 97 C due to it can only cause mortality of H. armigera up to 47,50% . Keywords: Entomopathogenic virus, LC50, protectant Material, pest. AbstrakHelicoverpa armigera adalah hama penting pada tanaman kedelai yang biasa dikendalikan dengan penyemprotan insektisida kimia sehingga perlu dikurangi, salah satunya dengan agens hayati seperti Spodoptera litura Nuclear Polyhedrosis Virus (SlNPV) JTM 97 C. Kelemahan penggunaan SlNPV adalah pada saat diaplikasikan di lapangan keefektifannya dapat menurun setelah terpapar sinar matahari, khususnya sinar ultraviolet (UV) sehingga diperlukan bahan pelindung seperti dari teh hitam yang diketahui mengandung epigallocatechin gallate, caffeic acid, dan apigenin yang dapat berfungsi sebagai pelindung UV. Penelitian ini bertujuan untuk mengetahui potensi filtrat teh hitam sebagai pelindung sinar UV pada S/NPV JTM 97 C untuk mengendalikan H. armigera. Penelitian dilakukan di Laboratorium Hama dan Penyakit Balai Penelitian Tanaman Aneka Kacang dan Umbi (Balitkabi), Kendalpayak, Malang dari Januari-Juni 2015, menggunakan Rancangan Acak Lengkap (RAL) dengan 7 perlakuan dan 4 ulangan. Ketujuh perlakuan tersebut adalah: kontrol S/NPV JTM 97 C tanpa bahan pelindung UV, pembanding S/NPV JTM 97 C dengan bahan pelindung kaolin, serta lima konsentrasi filtrat teh hitam 0,5; 1,0; 1,5; 2,0; dan 2,5%. Hasil penelitian menunjukkan bahwa seluruh perlakuan bahan pelindung filtrat teh hitam belum mampu memberikan mortalitas larva H. armigera yang lebih baik dari kaolin. Bahan pelindung kaolin menyebabkan mortalitas sebesar 82,50%. Bahan pelindung filtrat teh hitam dengan berbagai konsentrasi yang diujikan belum mampu digunakan sebagai bahan pelindung nabati pada S/NPV JTM 97 C karena hanya menyebabkan mortalitas hingga 47,50%. Untuk mencapai mortalitas larva 50%, maka konsentrasi filtrat teh hitam perlu ditingkatkan hingga 3,57%.Kata kunci : Bahan pelindung, hama, LC50, virus entomopatogen
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POTENCY OF BLACK TEA FILTRATE AS UV PROTECTANT TO S/NPV JTM 97 C IN CONTROLLING HELICOVERPA ARMIGERA ON SOYBEAN
'Indonesian Agency For Agricultural Research and Development (IAARD)', 2020Co-Authors: Sari, Anella Retna Kumala, Ariestantia, Tiara Eka, Choliq, Fery AbdulAbstract:Helicoverpa armigera is the important pest on soybean which usually controlled by chemical insecticide spraying, so it should be replaced by naturally control using biological agents such as Spodoptera litura Nuclear Polyhedrosis Virus (S/NPV) JTM 97 C. It has some weakness such as during it’s applied in the field the effectiveness can become decreased after exposure the sunlight, especially ultraviolet (UV) so it needs the Protective Material, such as black tea filtrate which is known containing epigallocatechin gallate, caffeic acid, and apigenin which have role as UV protectors. This research aimed to investigate the potential of black tea filtrate to protect the S/NPV JTM 97 C from UV in controlling of H. armigera. The research was conducted in Pests and Diseases Laboratory on Indonesian Legumes and Tuber Crops Research Institute (ILETRI), Kendalpayak, Malang from January to June 2015. The research used Completely Randomized Design with seven treatments and four replications. They were S/NPV JTM 97 C without UV protectant as control (P1), S/NPV JTM 97 C + kaolin as comparison (P2), S/NPV JTM 97 C + black tea filtrate concentration 0.5 (P3), 1.0 (P4), 1.5 (P5), 2 (P6), and 2.5% (P7). Results showed that all of the Protective Materials of black tea filtrate were unable to provide mortality of H. armigera larvae better than kaolin. Kaolin can cause mortality of H. armigera larvae up to 82,50%. All of Black tea filtrate concentrations tested were not able to be used as protectant of S/NPV JTM 97 C due to it can only cause mortality of H. armigera up to 47,50% . Keywords: Entomopathogenic virus, LC50, protectant Material, pest
Sari, Anella Retna Kumala - One of the best experts on this subject based on the ideXlab platform.
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POTENSI FILTRAT TEH HITAM SEBAGAI PELINDUNG SINAR UV TERHADAP S/NPV JTM 97 C DALAM MENGENDALIKAN Helicoverpa armigera / Potency of Black Tea Filtrate as UV Protectant to S/NPV JTM 97 C in Controlling Helicoverpa armigera
Pusat Penelitian dan Pengembangan Perkebunan, 2020Co-Authors: Sari, Anella Retna Kumala, Ariestantia, Tiara Eka, Choliq, Fery AbdulAbstract:Helicoverpa armigera is the important pest on soybean which usually controlled by chemical insecticide spraying, so it should be replaced by naturally control using biological agents such as Spodoptera litura Nuclear Polyhedrosis Virus (S/NPV) JTM 97 C. It has some weakness such as during it’s applied in the field the effectiveness can become decreased after exposure the sunlight, especially ultraviolet (UV) so it needs the Protective Material, such as black tea filtrate which is known containing epigallocatechin gallate, caffeic acid, and apigenin which have role as UV protectors. This research aimed to investigate the potential of black tea filtrate to protect the S/NPV JTM 97 C from UV in controlling of H. armigera. The research was conducted in Pests and Diseases Laboratory on Indonesian Legumes and Tuber Crops Research Institute (ILETRI), Kendalpayak, Malang from January to June 2015. The research used Completely Randomized Design with seven treatments and four replications. They were S/NPV JTM 97 C without UV protectant as control (P1), S/NPV JTM 97 C + kaolin as comparison (P2), S/NPV JTM 97 C + black tea filtrate concentration 0.5 (P3), 1.0 (P4), 1.5 (P5), 2 (P6), and 2.5% (P7). Results showed that all of the Protective Materials of black tea filtrate were unable to provide mortality of H. armigera larvae better than kaolin. Kaolin can cause mortality of H. armigera larvae up to 82,50%. All of Black tea filtrate concentrations tested were not able to be used as protectant of S/NPV JTM 97 C due to it can only cause mortality of H. armigera up to 47,50% . Keywords: Entomopathogenic virus, LC50, protectant Material, pest. AbstrakHelicoverpa armigera adalah hama penting pada tanaman kedelai yang biasa dikendalikan dengan penyemprotan insektisida kimia sehingga perlu dikurangi, salah satunya dengan agens hayati seperti Spodoptera litura Nuclear Polyhedrosis Virus (SlNPV) JTM 97 C. Kelemahan penggunaan SlNPV adalah pada saat diaplikasikan di lapangan keefektifannya dapat menurun setelah terpapar sinar matahari, khususnya sinar ultraviolet (UV) sehingga diperlukan bahan pelindung seperti dari teh hitam yang diketahui mengandung epigallocatechin gallate, caffeic acid, dan apigenin yang dapat berfungsi sebagai pelindung UV. Penelitian ini bertujuan untuk mengetahui potensi filtrat teh hitam sebagai pelindung sinar UV pada S/NPV JTM 97 C untuk mengendalikan H. armigera. Penelitian dilakukan di Laboratorium Hama dan Penyakit Balai Penelitian Tanaman Aneka Kacang dan Umbi (Balitkabi), Kendalpayak, Malang dari Januari-Juni 2015, menggunakan Rancangan Acak Lengkap (RAL) dengan 7 perlakuan dan 4 ulangan. Ketujuh perlakuan tersebut adalah: kontrol S/NPV JTM 97 C tanpa bahan pelindung UV, pembanding S/NPV JTM 97 C dengan bahan pelindung kaolin, serta lima konsentrasi filtrat teh hitam 0,5; 1,0; 1,5; 2,0; dan 2,5%. Hasil penelitian menunjukkan bahwa seluruh perlakuan bahan pelindung filtrat teh hitam belum mampu memberikan mortalitas larva H. armigera yang lebih baik dari kaolin. Bahan pelindung kaolin menyebabkan mortalitas sebesar 82,50%. Bahan pelindung filtrat teh hitam dengan berbagai konsentrasi yang diujikan belum mampu digunakan sebagai bahan pelindung nabati pada S/NPV JTM 97 C karena hanya menyebabkan mortalitas hingga 47,50%. Untuk mencapai mortalitas larva 50%, maka konsentrasi filtrat teh hitam perlu ditingkatkan hingga 3,57%.Kata kunci : Bahan pelindung, hama, LC50, virus entomopatogen
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POTENCY OF BLACK TEA FILTRATE AS UV PROTECTANT TO S/NPV JTM 97 C IN CONTROLLING HELICOVERPA ARMIGERA ON SOYBEAN
'Indonesian Agency For Agricultural Research and Development (IAARD)', 2020Co-Authors: Sari, Anella Retna Kumala, Ariestantia, Tiara Eka, Choliq, Fery AbdulAbstract:Helicoverpa armigera is the important pest on soybean which usually controlled by chemical insecticide spraying, so it should be replaced by naturally control using biological agents such as Spodoptera litura Nuclear Polyhedrosis Virus (S/NPV) JTM 97 C. It has some weakness such as during it’s applied in the field the effectiveness can become decreased after exposure the sunlight, especially ultraviolet (UV) so it needs the Protective Material, such as black tea filtrate which is known containing epigallocatechin gallate, caffeic acid, and apigenin which have role as UV protectors. This research aimed to investigate the potential of black tea filtrate to protect the S/NPV JTM 97 C from UV in controlling of H. armigera. The research was conducted in Pests and Diseases Laboratory on Indonesian Legumes and Tuber Crops Research Institute (ILETRI), Kendalpayak, Malang from January to June 2015. The research used Completely Randomized Design with seven treatments and four replications. They were S/NPV JTM 97 C without UV protectant as control (P1), S/NPV JTM 97 C + kaolin as comparison (P2), S/NPV JTM 97 C + black tea filtrate concentration 0.5 (P3), 1.0 (P4), 1.5 (P5), 2 (P6), and 2.5% (P7). Results showed that all of the Protective Materials of black tea filtrate were unable to provide mortality of H. armigera larvae better than kaolin. Kaolin can cause mortality of H. armigera larvae up to 82,50%. All of Black tea filtrate concentrations tested were not able to be used as protectant of S/NPV JTM 97 C due to it can only cause mortality of H. armigera up to 47,50% . Keywords: Entomopathogenic virus, LC50, protectant Material, pest
