感染 病 を 予防 する ため の 接触 式 昆虫 駆除 剤 の 固体 の 操作
Xiaolong Zhu1, Chunhua T Hu1, Jingxiang Yang1
1Department of Chemistry and Molecular Design Institute , New York University , 100 Washington Square East , New York , New York 10003 United States.
Journal of the American Chemical Society
|October 12, 2019
まとめ
新しい固体形態のDFDTとMFDTの殺虫剤は,DDTよりも早く病気を媒介する虫を殺します. その速度は熱力学的な安定性に関連し,殺虫剤耐性に対抗し,環境への影響を軽減する戦略を提供します.
科学分野:
- 固体化学
- 昆虫毒性について
- ベクター制御
背景:
- 虫殺菌網のピレトロイドに対するベクトル耐性は,マラリアの制御を脅かしています.
- DDT は 結晶型 の 昆虫 駆除 剤 で ある が,その 評判 が 悪く 知ら れ て いる に も かかわら ず,再考 さ れ て い ます.
- DDTの二酸化炭素同胞であるDFDTは有望であったが,歴史的に却下された.
研究 の 目的:
- DFDTとMFDTの無形と結晶の形態を探求する.
- アノフェレスやエイデス蚊のような 病原菌に対する有効性を評価するためです
- 固体特性と殺虫剤の活性との関係を確立する.
主な方法:
- 無形および結晶DFDTおよびMFDTの合成と特徴付け
- ドロソフィラ,アノフェレス,エイデスに対する殺虫剤の評価
- ノックダウン時間の測定と熱力学的安定性との相関.
主要な成果:
- 無形と結晶のDFDTとMFDTはDDTよりも速いノックダウンタイムを示した.
- アモルフな形は 行動がさらに速いのです
- ノックダウン速度は熱力学的な安定性に逆関係でした.
- MFDTの1つのエナチオメアは,より速いノックダウンを示し,キラル差別を示した.
結論:
- 接触用殺虫剤の固体化学操作は,病原菌の制御のための実行可能な戦略です.
- DFDTとMFDTは,行動のスピードを改善した潜在的な代替案を提供します.
- 熱力学的安定性の低下は,より速いノックダウンと相関し,抵抗管理を助けます.
- MFDTにおけるキラル差別は,分子レベルで特定の相互作用を示唆する.
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