請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/21758
標題: | 太赫茲活性水對病媒蚊幼期的毒性 Toxicity of terahertz radiation-activated water toward immature stages of mosquito vectors |
作者: | Tso-Min Hung 洪佐旻 |
指導教授: | 黃榮南(Rong-Nan Huang) |
關鍵字: | 太赫茲波,埃及斑蚊,白線斑蚊,熱帶家蚊,非化學農藥, Terahertz radiation,Aedes aegypti,Aedes albopictus,Culex quinquefasciatus,Non-chemical pesticides, |
出版年 : | 2019 |
學位: | 碩士 |
摘要: | 太赫茲活性水的原理是將鈣、鎂等植物營養鹽轉換成具有自我放電性的奈米結構微粒並溶於水中,因電磁輻射產生出波長介於1 mm~0.1 mm的太赫茲波、具有電解水分子的活性,可將自發性的水解離為氫離子和氫氧根,使其產生殺菌活性,亦能用於除臭、中和酸性等用途,也可發展為農業輔助製劑,發揮促進作物生長之作用,或是應用為殺蟲劑,殺死接觸到太赫茲活性水的害蟲,而不對作物或人體造成影響,可作為一種環境友善之防治資材。本研究試驗Santa Mineral公司之太赫茲活性水 (M717-RT Tera Hunter) 對三種常見病媒蚊 (埃及斑蚊(Aedes aegypti (Linnaeus))、白線斑蚊(Aedes albopictus (Skuse)) 及熱帶家蚊 (Culex quinquefasciatus (Say)) 幼期之毒性效應,包括卵之孵化率、幼蟲及蛹期毒性及羽化率影響,也評估太赫茲活性水對中劍水蚤 (Mesocyclops spp.) 之毒性及效用延續時間,以了解太赫茲活性水應用於病媒蚊幼期防治的潛力。試驗結果顯示太赫茲活性水不僅會降低熱帶家蚊卵的孵化率,也對三種病媒蚊幼蟲及蛹期均具有明顯之濃度相關毒性效應,原液稀釋3000倍以上的太赫茲活性水仍對三種病媒蚊的幼蟲和蛹期具有明顯毒性,且各蚊種在蛹期階段的死亡率表現略比幼蟲時期高,其中白線斑蚊的蛹期試驗更發現超過10000倍稀釋之太赫茲活性水仍可造成過半死亡率,未造成蛹體死亡的較低濃度下也會影響後續成蚊羽化成功的比率。太赫茲活性水雖對埃及斑蚊卵的孵化率無顯著影響,但仍具有對幼蟲及蛹期之防治潛力。然而太赫茲活性水也對病媒蚊的捕食性天敵中劍水蚤也有相當毒性,因此,在實際使用上須避免於進行中劍水蚤生物防治的水域使用。而稀釋的太赫茲活性水在經過2日後便會失去效用,能快速降解於環境中不造成長時間的殘留影響。 The terahertz radiation-activated water is a functional water in which plant derived minerals (calcium, magnesium, etc.) are transformed into electrically charged mesoscopic crystals. They could emit terahertz radiation between 1~0.1 mm wavelength due to electromagnetic radiation, so that electrolyte water molecule into hydrogen ion and hydroxide automatically. This thesis investigates the toxicity of terahertz radiation-activated water product (M717-RT Tera Hunter, Santa Mineral Co., Ltd.) to three common mosquitoes: Aedes aegypti (Linnaeus), Aedes albopictus (Skuse), and Culex quinquefasciatus (Say). The results showed terahertz radiation-activated water not only decreases the hatching rate of Cx. quinquefasciatus eggs, but also shows obviously concentration-dependent toxicity to larvae and pupae of all three mosquitoes. Moreover, the terahertz radiation-activated water was more toxic to pupal than larvae in each mosquito species, especially the Ae. albopictus pupae, in which half individual were dead after exposure to over 10000 times dilution of terahertz radiation-activated water. Though lower concentration of terahertz radiation-activated water were not lethal to the pupae, it still made influence to emergence rate. The terahertz radiation-activated water has no significant effect on Aedes aegypti eggs, nevertheless it could be potentially used for vector control to larvae and pupae. Since the terahertz radiation-activated water was also toxic to larvivorous predatory copepods (Mesocyclops spp.), it should be avoided to utilize in waters with bio-control of predatory copepods simultaneously. Diluted terahertz radiation-activated water will loss toxicity after 2 days, indicating it is degradable and eco-friendly in the environment. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/21758 |
DOI: | 10.6342/NTU201900586 |
全文授權: | 未授權 |
顯示於系所單位: | 昆蟲學系 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-108-1.pdf 目前未授權公開取用 | 3.05 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。