caa a22 4500 445880872 CHVBK 20180317145542.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s00604-010-0523-x doi (NATIONALLICENCE)springer-10.1007/s00604-010-0523-x Preparation and characterization of nano-sized calcium carbonate as controlled release pesticide carrier for validamycin against Rhizoctonia solani [Elektronische Daten] [Kun Qian, Tianyu Shi, Tao Tang, Shaoliang Zhang, Xili Liu, Yongsong Cao] Nano-sized calcium carbonate (nano-CC) was studied in terms of acting as a carrier for a pesticide. Nano-CC was prepared by reaction of calcium chloride and sodium carbonate by the reversed-phase microemulsion method and then loaded with the pesticide validamycin. The resulting material was characterized by X-ray diffraction analysis and scanning electron microscopy. The loading efficiency, sustained-release performance, germicidal efficacy, and stability also were investigated. The size of the loaded nano-CC can be adjusted to between 50 to 200nm by varying the water/surfactant molar ratio from 30/1 to 10/1, and the loading efficiency can be increased to about 20% by increasing the size of the nano-CC. The material displayed better germicidal efficacy against Rhizoctonia solani compared to conventional technical validamycin after about 7days, and the time of the release of validamycin was extended to 2weeks. Given the loading efficiency, stability, sustained-release performance and good environmental compatibility of the material, the method for its preparation may be extended to other hydrophilic pesticide. Figure Germicidal efficacy of validamycin technical and vali-nano-CCagainst Rhizoctonia solani at the 3rd, 7th days Springer-Verlag, 2010 Nano-sized calcium carbonate (nano-CC) nationallicence Validamycin nationallicence Sustained-release performance nationallicence Stability nationallicence Qian Kun College of Agriculture and Biotechnology, China Agricultural University, NO.2 Yuanmingyuan West Road, 100193, Beijing, China aut Shi Tianyu College of Agriculture and Biotechnology, China Agricultural University, NO.2 Yuanmingyuan West Road, 100193, Beijing, China aut Tang Tao College of Agriculture and Biotechnology, China Agricultural University, NO.2 Yuanmingyuan West Road, 100193, Beijing, China aut Zhang Shaoliang College of Agriculture and Biotechnology, China Agricultural University, NO.2 Yuanmingyuan West Road, 100193, Beijing, China aut Liu Xili College of Agriculture and Biotechnology, China Agricultural University, NO.2 Yuanmingyuan West Road, 100193, Beijing, China aut Cao Yongsong College of Agriculture and Biotechnology, China Agricultural University, NO.2 Yuanmingyuan West Road, 100193, Beijing, China aut Microchimica Acta Springer Vienna 173/1-2(2011-04-01), 51-57 0026-3672 173:1-2<51 2011 173 604 https://doi.org/10.1007/s00604-010-0523-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-010-0523-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Qian Kun College of Agriculture and Biotechnology, China Agricultural University, NO.2 Yuanmingyuan West Road, 100193, Beijing, China aut NATIONALLICENCE 700 1- Shi Tianyu College of Agriculture and Biotechnology, China Agricultural University, NO.2 Yuanmingyuan West Road, 100193, Beijing, China aut NATIONALLICENCE 700 1- Tang Tao College of Agriculture and Biotechnology, China Agricultural University, NO.2 Yuanmingyuan West Road, 100193, Beijing, China aut NATIONALLICENCE 700 1- Zhang Shaoliang College of Agriculture and Biotechnology, China Agricultural University, NO.2 Yuanmingyuan West Road, 100193, Beijing, China aut NATIONALLICENCE 700 1- Liu Xili College of Agriculture and Biotechnology, China Agricultural University, NO.2 Yuanmingyuan West Road, 100193, Beijing, China aut NATIONALLICENCE 700 1- Cao Yongsong College of Agriculture and Biotechnology, China Agricultural University, NO.2 Yuanmingyuan West Road, 100193, Beijing, China aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 173/1-2(2011-04-01), 51-57 0026-3672 173:1-2<51 2011 173 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer