{"id":1321,"date":"2026-09-28T15:20:16","date_gmt":"2026-09-28T07:20:16","guid":{"rendered":"https:\/\/www.daoanchemical.com\/?p=1321"},"modified":"2026-09-28T15:20:16","modified_gmt":"2026-09-28T07:20:16","slug":"why-is-active-zinc-oxide-nano-grade-better-for-disease-control","status":"publish","type":"post","link":"https:\/\/www.daoanchemical.com\/vi\/why-is-active-zinc-oxide-nano-grade-better-for-disease-control\/","title":{"rendered":"T\u1ea1i sao k\u1ebdm oxit nano d\u1ea1ng ho\u1ea1t t\u00ednh l\u1ea1i t\u1ed1t h\u01a1n trong vi\u1ec7c ki\u1ec3m so\u00e1t d\u1ecbch b\u1ec7nh?"},"content":{"rendered":"

K\u1ebdm oxit nano ho\u1ea1t t\u00ednh<\/strong><\/a><\/span> \u0111\u00e3 thu h\u00fat s\u1ef1 quan t\u00e2m ng\u00e0y c\u00e0ng t\u0103ng trong qu\u1ea3n l\u00fd b\u1ec7nh c\u00e2y tr\u1ed3ng v\u00ec k\u00edch th\u01b0\u1edbc h\u1ea1t nh\u1ecf v\u00e0 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang cao c\u1ee7a n\u00f3 c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng cung c\u1ea5p k\u1ebdm, ho\u1ea1t t\u00ednh kh\u00e1ng khu\u1ea9n v\u00e0 ph\u1ea3n \u1ee9ng ph\u00f2ng th\u1ee7 c\u1ee7a c\u00e2y. So v\u1edbi k\u1ebdm oxit d\u1ea1ng kh\u1ed1i th\u00f4ng th\u01b0\u1eddng, ZnO nano-grade cung c\u1ea5p b\u1ec1 m\u1eb7t ph\u1ea3n \u1ee9ng l\u1edbn h\u01a1n v\u00e0 c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c hi\u1ec7u qu\u1ea3 h\u01a1n v\u1edbi m\u1ea7m b\u1ec7nh c\u0169ng nh\u01b0 m\u00f4 th\u1ef1c v\u1eadt.<\/p>\n

Tuy nhi\u00ean, hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3 ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 \u0111\u1eb7c t\u00ednh h\u1ea1t, c\u00f4ng th\u1ee9c ch\u1ebf t\u1ea1o, \u0111\u1ed9 ph\u00e2n t\u00e1n v\u00e0 \u0111i\u1ec1u ki\u1ec7n \u00e1p d\u1ee5ng. Nghi\u00ean c\u1ee9u c\u0169ng \u0111\u00e3 b\u00e1o c\u00e1o nh\u1eefng t\u00e1c \u0111\u1ed9ng ti\u1ec1m t\u00e0ng l\u00ean c\u00e1c con \u0111\u01b0\u1eddng ph\u00f2ng th\u1ee7 c\u1ee7a c\u00e2y ngo\u00e0i vi\u1ec7c b\u1ed5 sung k\u1ebdm. B\u00e0i vi\u1ebft n\u00e0y xem x\u00e9t c\u00e1ch k\u1ebdm oxit nano ho\u1ea1t t\u00ednh t\u00e1c \u0111\u1ed9ng ch\u1ed1ng l\u1ea1i m\u1ea7m b\u1ec7nh c\u00e2y tr\u1ed3ng v\u00e0 c\u00e1ch \u0111\u00e1nh gi\u00e1 n\u00f3 cho c\u00e1c \u1ee9ng d\u1ee5ng l\u00e1, h\u1ea1t gi\u1ed1ng v\u00e0 \u0111\u1ea5t tr\u1ed3ng.<\/p>\n

C\u00e1ch k\u1ebdm oxit nano ho\u1ea1t t\u00ednh t\u00e1c \u0111\u1ed9ng ch\u1ed1ng l\u1ea1i m\u1ea7m b\u1ec7nh c\u00e2y tr\u1ed3ng<\/h2>\n

Khi k\u1ebdm oxit nano ho\u1ea1t t\u00ednh ti\u1ebfp x\u00fac v\u1edbi m\u1ea7m b\u1ec7nh n\u1ea5m ho\u1eb7c vi khu\u1ea9n, ho\u1ea1t t\u00ednh kh\u00e1ng khu\u1ea9n c\u1ee7a n\u00f3 c\u00f3 th\u1ec3 bao g\u1ed3m c\u1ea3 gi\u1ea3i ph\u00f3ng ion k\u1ebdm v\u00e0 s\u1ea3n sinh c\u00e1c lo\u1ea1i oxy ph\u1ea3n \u1ee9ng. C\u00e1c ion Zn\u00b2\u207a c\u00f3 th\u1ec3 c\u1ea3n tr\u1edf ch\u1ee9c n\u0103ng t\u1ebf b\u00e0o vi sinh v\u1eadt, trong khi c\u00e1c lo\u1ea1i oxy ph\u1ea3n \u1ee9ng nh\u01b0 hydrogen peroxide c\u00f3 th\u1ec3 g\u00f3p ph\u1ea7n g\u00e2y t\u1ed5n th\u01b0\u01a1ng m\u00e0ng t\u1ebf b\u00e0o v\u00e0 t\u1ebf b\u00e0o.<\/p>\n

Di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang cao c\u1ee7a ZnO nano-grade l\u00e0m t\u0103ng b\u1ec1 m\u1eb7t s\u1eb5n c\u00f3 \u0111\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi m\u00f4i tr\u01b0\u1eddng xung quanh. So v\u1edbi k\u1ebdm oxit d\u1ea1ng kh\u1ed1i, c\u00e1c h\u1ea1t nh\u1ecf h\u01a1n c\u00f3 th\u1ec3 cung c\u1ea5p nhi\u1ec1u v\u1ecb tr\u00ed ph\u1ea3n \u1ee9ng h\u01a1n tr\u00ean m\u1ed7i \u0111\u01a1n v\u1ecb v\u1eadt li\u1ec7u. Tuy nhi\u00ean, ph\u1ea3n \u1ee9ng kh\u00e1ng khu\u1ea9n th\u1ef1c t\u1ebf ph\u1ee5 thu\u1ed9c v\u00e0o k\u00edch th\u01b0\u1edbc h\u1ea1t, t\u00ednh ch\u1ea5t b\u1ec1 m\u1eb7t, c\u00f4ng th\u1ee9c ch\u1ebf t\u1ea1o, n\u1ed3ng \u0111\u1ed9 v\u00e0 m\u1ea7m b\u1ec7nh m\u1ee5c ti\u00eau.<\/p>\n

K\u1ebdm oxit nano ho\u1ea1t t\u00ednh c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ph\u1ea3n \u1ee9ng ph\u00f2ng th\u1ee7 c\u1ee7a c\u00e2y ngo\u00e0i vi\u1ec7c t\u01b0\u01a1ng t\u00e1c tr\u1ef1c ti\u1ebfp v\u1edbi m\u1ea7m b\u1ec7nh. C\u00e1c nghi\u00ean c\u1ee9u v\u1ec1 nanoparticle ZnO \u0111\u00e3 b\u00e1o c\u00e1o nh\u1eefng thay \u0111\u1ed5i trong t\u00edn hi\u1ec7u li\u00ean quan \u0111\u1ebfn ph\u00f2ng th\u1ee7 v\u00e0 ho\u1ea1t \u0111\u1ed9ng enzyme \u1edf c\u00e2y tr\u1ed3ng khi ti\u1ebfp x\u00fac v\u1edbi n\u1ed3ng \u0111\u1ed9 ph\u00f9 h\u1ee3p. Nh\u1eefng t\u00e1c \u0111\u1ed9ng n\u00e0y cho th\u1ea5y ZnO nano-grade c\u00f3 th\u1ec3 v\u1eeba cung c\u1ea5p k\u1ebdm v\u1eeba h\u1ed7 tr\u1ee3 ph\u1ea3n \u1ee9ng c\u1ee7a c\u00e2y trong qu\u1ea3n l\u00fd b\u1ec7nh c\u00e2y tr\u1ed3ng.<\/p>\n

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k\u1ebdm oxit nano ho\u1ea1t t\u00ednh<\/figcaption><\/figure>\n

T\u1ea1i sao k\u00edch th\u01b0\u1edbc h\u1ea1t l\u1ea1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi ki\u1ec3m so\u00e1t b\u1ec7nh<\/h3>\n

K\u00edch th\u01b0\u1edbc h\u1ea1t l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng khi \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t c\u1ee7a k\u1ebdm oxit nano-grade. Khi k\u00edch th\u01b0\u1edbc h\u1ea1t gi\u1ea3m, t\u1ef7 l\u1ec7 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t tr\u00ean th\u1ec3 t\u00edch th\u01b0\u1eddng t\u0103ng, t\u1ea1o ra nhi\u1ec1u b\u1ec1 m\u1eb7t h\u01a1n \u0111\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c ion, m\u00f4 th\u1ef1c v\u1eadt v\u00e0 t\u1ebf b\u00e0o vi sinh v\u1eadt.<\/p>\n

K\u1ebdm oxit nano ho\u1ea1t t\u00ednh c\u1ea5p n\u00f4ng nghi\u1ec7p c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c cung c\u1ea5p v\u1edbi k\u00edch th\u01b0\u1edbc h\u1ea1t s\u01a1 c\u1ea5p trong ph\u1ea1m vi nanomet v\u00e0 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang BET kh\u00e1c nhau, t\u00f9y thu\u1ed9c v\u00e0o quy tr\u00ecnh s\u1ea3n xu\u1ea5t. Nh\u1eefng th\u00f4ng s\u1ed1 n\u00e0y n\u00ean \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 c\u00f9ng nhau thay v\u00ec ch\u1ec9 coi k\u00edch th\u01b0\u1edbc h\u1ea1t l\u00e0 th\u01b0\u1edbc \u0111o duy nh\u1ea5t cho hi\u1ec7u su\u1ea5t s\u1ea3n ph\u1ea9m.<\/p>\n

C\u00e1c nghi\u00ean c\u1ee9u hi\u1ec3n vi \u0111\u00e3 ghi nh\u1eadn nh\u1eefng thay \u0111\u1ed5i c\u1ea5u tr\u00fac trong s\u1ee3i n\u1ea5m sau khi ti\u1ebfp x\u00fac v\u1edbi nanoparticle ZnO, bao g\u1ed3m bi\u1ebfn d\u1ea1ng, t\u1ed5n th\u01b0\u01a1ng m\u00e0ng t\u1ebf b\u00e0o v\u00e0 ph\u00e1t tri\u1ec3n b\u1ea5t th\u01b0\u1eddng. Nh\u1eefng quan s\u00e1t n\u00e0y \u1ee7ng h\u1ed9 vai tr\u00f2 kh\u00e1ng khu\u1ea9n ti\u1ec1m t\u00e0ng c\u1ee7a ZnO nano-grade, m\u1eb7c d\u00f9 k\u1ebft qu\u1ea3 c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y theo lo\u00e0i n\u1ea5m, \u0111\u1eb7c t\u00ednh h\u1ea1t, n\u1ed3ng \u0111\u1ed9 v\u00e0 \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m.<\/p>\n

C\u00e1ch ho\u1ea1t \u0111\u1ed9ng ph\u1ed1i h\u1ee3p gi\u1eefa ho\u1ea1t t\u00ednh kh\u00e1ng khu\u1ea9n tr\u1ef1c ti\u1ebfp v\u00e0 ph\u1ea3n \u1ee9ng ph\u00f2ng th\u1ee7 c\u1ee7a c\u00e2y tr\u1ed3ng<\/h3>\n

C\u00e1c t\u00e1c \u0111\u1ed9ng ti\u1ec1m t\u00e0ng trong ki\u1ec3m so\u00e1t b\u1ec7nh c\u1ee7a nanoparticle ZnO c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem x\u00e9t qua hai con \u0111\u01b0\u1eddng li\u00ean quan:<\/p>\n

    \n
  • Ho\u1ea1t t\u00ednh kh\u00e1ng khu\u1ea9n tr\u1ef1c ti\u1ebfp:<\/strong> C\u00e1c ion Zn\u00b2\u207a v\u00e0 c\u00e1c lo\u1ea1i oxy ph\u1ea3n \u1ee9ng c\u00f3 th\u1ec3 c\u1ea3n tr\u1edf m\u00e0ng t\u1ebf b\u00e0o, protein v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n t\u1ebf b\u00e0o kh\u00e1c c\u1ee7a vi sinh v\u1eadt.<\/li>\n
  • Ph\u1ea3n \u1ee9ng ph\u00f2ng th\u1ee7 c\u1ee7a c\u00e2y tr\u1ed3ng:<\/strong> Ti\u1ebfp x\u00fac th\u00edch h\u1ee3p v\u1edbi k\u1ebdm c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c enzyme v\u00e0 con \u0111\u01b0\u1eddng truy\u1ec1n t\u00edn hi\u1ec7u li\u00ean quan \u0111\u1ebfn ph\u00f2ng th\u1ee7, t\u1eeb \u0111\u00f3 gi\u00fap c\u00e2y tr\u1ed3ng ph\u1ea3n \u1ee9ng t\u1ed1t h\u01a1n tr\u01b0\u1edbc stress do m\u1ea7m b\u1ec7nh.<\/li>\n<\/ul>\n

    Nghi\u00ean c\u1ee9u tr\u00ean c\u00e1c lo\u1ea1i c\u00e2y tr\u1ed3ng nh\u01b0 c\u00e0 chua \u0111\u00e3 b\u00e1o c\u00e1o nh\u1eefng thay \u0111\u1ed5i v\u1ec1 m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng c\u1ee7a b\u1ec7nh v\u00e0 t\u00ecnh tr\u1ea1ng dinh d\u01b0\u1ee1ng c\u1ee7a c\u00e2y sau khi x\u1eed l\u00fd b\u1eb1ng nanoparticle ZnO. Tuy nhi\u00ean, nh\u1eefng k\u1ebft qu\u1ea3 n\u00e0y c\u1ea7n \u0111\u01b0\u1ee3c hi\u1ec3u trong b\u1ed1i c\u1ea3nh c\u1ee5 th\u1ec3 c\u1ee7a t\u1eebng lo\u1ea1i c\u00e2y tr\u1ed3ng, m\u1ea7m b\u1ec7nh, ph\u01b0\u01a1ng ph\u00e1p \u00e1p d\u1ee5ng, n\u1ed3ng \u0111\u1ed9 v\u00e0 \u0111i\u1ec1u ki\u1ec7n th\u00ed nghi\u1ec7m ch\u1ee9 kh\u00f4ng n\u00ean coi l\u00e0 m\u1ee9c hi\u1ec7u su\u1ea5t ph\u1ed5 qu\u00e1t.<\/p>\n

    So s\u00e1nh k\u1ebdm oxit nano ho\u1ea1t t\u00ednh v\u1edbi c\u00e1c ngu\u1ed3n k\u1ebdm th\u00f4ng th\u01b0\u1eddng<\/h2>\n

    Hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u ch\u1ee9a k\u1ebdm c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o k\u00edch th\u01b0\u1edbc h\u1ea1t, c\u00f4ng th\u1ee9c ch\u1ebf t\u1ea1o, ph\u01b0\u01a1ng ph\u00e1p \u00e1p d\u1ee5ng v\u00e0 \u0111i\u1ec1u ki\u1ec7n c\u00e2y tr\u1ed3ng. So s\u00e1nh d\u01b0\u1edbi \u0111\u00e2y nh\u1ea5n m\u1ea1nh nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m chung c\u00f3 th\u1ec3 h\u1eefu \u00edch khi \u0111\u00e1nh gi\u00e1 k\u1ebdm oxit nano ho\u1ea1t t\u00ednh c\u00f9ng v\u1edbi ZnO d\u1ea1ng kh\u1ed1i v\u00e0 k\u1ebdm sunfat.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
    Tham s\u1ed1<\/th>\nK\u1ebdm oxit nano c\u1ea5p \u0111\u1ed9 ho\u1ea1t t\u00ednh<\/th>\nZnO d\u1ea1ng kh\u1ed1i th\u00f4ng th\u01b0\u1eddng<\/th>\nK\u1ebdm sunfat ZnSO\u2084<\/th>\n<\/tr>\n<\/thead>\n
    D\u1ea1ng v\u1eadt l\u00fd<\/td>\nH\u1ea1t k\u00edch th\u01b0\u1edbc nano<\/td>\nH\u1ea1t l\u1edbn h\u01a1n<\/td>\nMu\u1ed1i k\u1ebdm tan trong n\u01b0\u1edbc<\/td>\n<\/tr>\n
    K\u00edch th\u01b0\u1edbc h\u1ea1t<\/td>\nTrong ph\u1ea1m vi nanomet<\/td>\nTrong ph\u1ea1m vi micron<\/td>\nTan trong dung d\u1ecbch<\/td>\n<\/tr>\n
    Di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang<\/td>\nTh\u01b0\u1eddng cao h\u01a1n<\/td>\nTh\u01b0\u1eddng th\u1ea5p h\u01a1n<\/td>\nKh\u00f4ng \u00e1p d\u1ee5ng \u1edf c\u00f9ng d\u1ea1ng<\/td>\n<\/tr>\n
    Kh\u1ea3 n\u0103ng cung c\u1ea5p k\u1ebdm<\/td>\nB\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi t\u00ednh ch\u1ea5t h\u1ea1t v\u00e0 c\u00f4ng th\u1ee9c ch\u1ebf t\u1ea1o<\/td>\nB\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi \u0111\u1ed9 h\u00f2a tan v\u00e0 \u0111\u1eb7c t\u00ednh h\u1ea1t<\/td>\n\u0110\u1ed9 h\u00f2a tan trong n\u01b0\u1edbc t\u01b0\u01a1ng \u0111\u1ed1i cao<\/td>\n<\/tr>\n
    Ph\u01b0\u01a1ng ph\u00e1p \u00e1p d\u1ee5ng<\/td>\n\u00c1p d\u1ee5ng tr\u00ean l\u00e1, h\u1ea1t gi\u1ed1ng ho\u1eb7c \u0111\u1ea5t tr\u1ed3ng<\/td>\n\u00c1p d\u1ee5ng tr\u00ean \u0111\u1ea5t ho\u1eb7c l\u00e1<\/td>\nCh\u1ee7 y\u1ebfu \u00e1p d\u1ee5ng tr\u00ean \u0111\u1ea5t ho\u1eb7c l\u00e1<\/td>\n<\/tr>\n
    Vai tr\u00f2 ti\u1ec1m t\u00e0ng trong qu\u1ea3n l\u00fd b\u1ec7nh<\/td>\nCung c\u1ea5p k\u1ebdm v\u00e0 t\u00e1c \u0111\u1ed9ng kh\u00e1ng khu\u1ea9n ti\u1ec1m t\u00e0ng<\/td>\nCh\u1ee7 y\u1ebfu b\u1ed5 sung k\u1ebdm<\/td>\nCh\u1ee7 y\u1ebfu b\u1ed5 sung k\u1ebdm<\/td>\n<\/tr>\n
    C\u00e1c y\u1ebfu t\u1ed1 \u0111\u00e1nh gi\u00e1 ch\u00ednh<\/td>\nK\u00edch th\u01b0\u1edbc h\u1ea1t, di\u1ec7n t\u00edch BET, \u0111\u1ed9 tinh khi\u1ebft, \u0111\u1ed9 ph\u00e2n t\u00e1n<\/td>\n\u0110\u1ed9 tinh khi\u1ebft, k\u00edch th\u01b0\u1edbc h\u1ea1t, \u0111\u1ed9 h\u00f2a tan<\/td>\n\u0110\u1ed9 h\u00f2a tan, n\u1ed3ng \u0111\u1ed9, c\u00f4ng th\u1ee9c ch\u1ebf t\u1ea1o<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa k\u1ebdm oxit nano-grade v\u00e0 d\u1ea1ng kh\u1ed1i l\u00e0 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t l\u1edbn h\u01a1n g\u1eafn li\u1ec1n v\u1edbi c\u00e1c h\u1ea1t nh\u1ecf h\u01a1n. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh gi\u1ea3i ph\u00f3ng k\u1ebdm, \u0111\u1ed9 ph\u00e2n t\u00e1n v\u00e0 t\u01b0\u01a1ng t\u00e1c v\u1edbi b\u1ec1 m\u1eb7t th\u1ef1c v\u1eadt ho\u1eb7c vi sinh v\u1eadt. Tuy nhi\u00ean, di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t l\u1edbn h\u01a1n kh\u00f4ng t\u1ef1 \u0111\u1ed9ng d\u1eabn \u0111\u1ebfn hi\u1ec7u su\u1ea5t \u0111\u1ed3ng ru\u1ed9ng t\u1ed1t h\u01a1n. Lo\u1ea1i c\u00e2y tr\u1ed3ng, c\u00f4ng th\u1ee9c ch\u1ebf t\u1ea1o, t\u1ef7 l\u1ec7 \u00e1p d\u1ee5ng, \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng v\u00e0 m\u1ea7m b\u1ec7nh m\u1ee5c ti\u00eau \u0111\u1ec1u c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ph\u1ea3n \u1ee9ng cu\u1ed1i c\u00f9ng.<\/p>\n

    Do \u0111\u00f3, \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng n\u00f4ng nghi\u1ec7p, kh\u1ea3 n\u0103ng sinh kh\u1ea3 d\u1ee5ng c\u1ee7a k\u1ebdm n\u00ean \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 c\u00f9ng v\u1edbi c\u00e1c \u0111\u1eb7c t\u00ednh s\u1ea3n ph\u1ea9m v\u00e0 \u0111i\u1ec1u ki\u1ec7n \u00e1p d\u1ee5ng. Nghi\u00ean c\u1ee9u \u0111\u00e3 b\u00e1o c\u00e1o s\u1ef1 c\u1ea3i thi\u1ec7n h\u1ea5p thu k\u1ebdm t\u1eeb nanoparticle ZnO \u1edf m\u1ed9t s\u1ed1 c\u00e2y tr\u1ed3ng, nh\u01b0ng m\u1ee9c \u0111\u1ed9 ph\u1ea3n \u1ee9ng kh\u00e1c nhau gi\u1eefa c\u00e1c nghi\u00ean c\u1ee9u. Thay v\u00ec gi\u1ea3 \u0111\u1ecbnh m\u1ed9t l\u1ee3i th\u1ebf hi\u1ec7u qu\u1ea3 ph\u1ed5 qu\u00e1t, ng\u01b0\u1eddi tr\u1ed3ng tr\u1ecdt v\u00e0 nh\u00e0 b\u00e0o ch\u1ebf n\u00ean so s\u00e1nh c\u00e1c s\u1ea3n ph\u1ea9m trong ch\u00ednh c\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00e0 ch\u00fang s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/p>\n

    Nh\u1eefng g\u00ec nghi\u00ean c\u1ee9u \u0111\u1ed3ng ru\u1ed9ng ch\u1ec9 ra v\u1ec1 n\u0103ng su\u1ea5t v\u00e0 k\u1ebft qu\u1ea3 b\u1ec7nh<\/h3>\n

    C\u00e1c nghi\u00ean c\u1ee9u \u0111\u1ed3ng ru\u1ed9ng v\u00e0 nh\u00e0 k\u00ednh \u0111\u00e3 b\u00e1o c\u00e1o nh\u1eefng ph\u1ea3n \u1ee9ng n\u00f4ng h\u1ecdc kh\u00e1c nhau \u0111\u1ed1i v\u1edbi nanoparticle ZnO tr\u00ean c\u00e1c lo\u1ea1i c\u00e2y tr\u1ed3ng. Trong l\u00faa tr\u1ed3ng trong \u0111i\u1ec1u ki\u1ec7n thi\u1ebfu k\u1ebdm, m\u1ed9t s\u1ed1 th\u1eed nghi\u1ec7m cho th\u1ea5y vi\u1ec7c x\u1eed l\u00fd l\u00e1 b\u1eb1ng nanoparticle ZnO gi\u00fap c\u1ea3i thi\u1ec7n n\u0103ng su\u1ea5t h\u1ea1t v\u00e0 c\u00e1c th\u00f4ng s\u1ed1 li\u00ean quan \u0111\u1ebfn di\u1ec7p l\u1ee5c so v\u1edbi \u0111\u1ed1i ch\u1ee9ng ch\u01b0a x\u1eed l\u00fd. Ph\u1ea3n \u1ee9ng n\u00e0y thay \u0111\u1ed5i t\u00f9y thu\u1ed9c v\u00e0o n\u1ed3ng \u0111\u1ed9 \u00e1p d\u1ee5ng v\u00e0 \u0111i\u1ec1u ki\u1ec7n x\u1eed l\u00fd.<\/p>\n

    C\u00e1c nghi\u00ean c\u1ee9u kh\u00e1c \u0111\u00e3 kh\u1ea3o s\u00e1t ZnO nano-grade tr\u00ean c\u00e1c lo\u1ea1i c\u00e2y tr\u1ed3ng nh\u01b0 h\u1ea1t lanh, c\u00e0 chua v\u00e0 l\u00faa m\u00ec. C\u00e1c k\u1ebft qu\u1ea3 b\u00e1o c\u00e1o bao g\u1ed3m thay \u0111\u1ed5i v\u1ec1 sinh tr\u01b0\u1edfng, ho\u1ea1t \u0111\u1ed9ng enzyme ch\u1ed1ng oxy h\u00f3a, t\u00edch l\u0169y dinh d\u01b0\u1ee1ng v\u00e0 c\u00e1c th\u00f4ng s\u1ed1 li\u00ean quan \u0111\u1ebfn b\u1ec7nh. Nh\u1eefng ph\u00e1t hi\u1ec7n n\u00e0y cho th\u1ea5y k\u1ebdm oxit nano-grade c\u00f3 th\u1ec3 c\u00f3 gi\u00e1 tr\u1ecb v\u01b0\u1ee3t xa vi\u1ec7c b\u1ed5 sung k\u1ebdm th\u00f4ng th\u01b0\u1eddng, nh\u01b0ng k\u1ebft qu\u1ea3 c\u1ea7n \u0111\u01b0\u1ee3c di\u1ec5n gi\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi lo\u1ea1i c\u00e2y tr\u1ed3ng, c\u00f4ng th\u1ee9c ch\u1ebf t\u1ea1o, n\u1ed3ng \u0111\u1ed9 v\u00e0 thi\u1ebft k\u1ebf th\u00ed nghi\u1ec7m.<\/p>\n

    \u0110\u1ed1i v\u1edbi qu\u1ea3n l\u00fd b\u1ec7nh, s\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng. M\u1ed9t ngu\u1ed3n k\u1ebdm gi\u00fap c\u1ea3i thi\u1ec7n t\u00ecnh tr\u1ea1ng k\u1ebdm c\u1ee7a c\u00e2y kh\u00f4ng nh\u1ea5t thi\u1ebft mang l\u1ea1i m\u1ee9c \u0111\u1ed9 ki\u1ec3m so\u00e1t m\u1ea7m b\u1ec7nh nh\u01b0 nhau trong m\u1ecdi \u0111i\u1ec1u ki\u1ec7n \u0111\u1ed3ng ru\u1ed9ng. Do \u0111\u00f3, vi\u1ec7c \u0111\u00e1nh gi\u00e1 s\u1ea3n ph\u1ea9m c\u1ea7n xem x\u00e9t c\u1ea3 hi\u1ec7u su\u1ea5t n\u00f4ng h\u1ecdc l\u1eabn c\u00e1c ch\u1ec9 ti\u00eau ki\u1ec3m so\u00e1t b\u1ec7nh, thay v\u00ec ch\u1ec9 d\u1ef1a v\u00e0o n\u1ed3ng \u0111\u1ed9 k\u1ebdm.<\/p>\n

    \u1ee8ng d\u1ee5ng th\u1ef1c ti\u1ec5n: K\u1ebdm oxit nano ho\u1ea1t t\u00ednh ph\u00f9 h\u1ee3p v\u1edbi qu\u1ea3n l\u00fd c\u00e2y tr\u1ed3ng \u1edf \u0111\u00e2u<\/h2>\n

    Gi\u00e1 tr\u1ecb ti\u1ec1m n\u0103ng c\u1ee7a k\u1ebdm oxit nano ho\u1ea1t t\u00ednh ph\u1ee5 thu\u1ed9c ch\u1ee7 y\u1ebfu v\u00e0o c\u00e1ch th\u1ee9c v\u00e0 th\u1eddi \u0111i\u1ec3m \u00e1p d\u1ee5ng. Trong c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh qu\u1ea3n l\u00fd c\u00e2y tr\u1ed3ng, ZnO nano-grade c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 qua ba con \u0111\u01b0\u1eddng ch\u00ednh: x\u1eed l\u00fd h\u1ea1t gi\u1ed1ng, phun tr\u00ean l\u00e1 v\u00e0 b\u00f3n v\u00e0o \u0111\u1ea5t.<\/p>\n

    Ph\u01b0\u01a1ng ph\u00e1p ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o lo\u1ea1i c\u00e2y tr\u1ed3ng, m\u1ea7m b\u1ec7nh m\u1ee5c ti\u00eau, t\u00ecnh tr\u1ea1ng k\u1ebdm, c\u00f4ng th\u1ee9c ch\u1ebf t\u1ea1o v\u00e0 y\u00eau c\u1ea7u \u00e1p d\u1ee5ng t\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng. Nh\u1eefng y\u1ebfu t\u1ed1 n\u00e0y c\u1ea7n \u0111\u01b0\u1ee3c c\u00e2n nh\u1eafc khi x\u00e1c \u0111\u1ecbnh n\u1ed3ng \u0111\u1ed9, th\u1eddi \u0111i\u1ec3m v\u00e0 t\u1ea7n su\u1ea5t x\u1eed l\u00fd.<\/p>\n

    X\u1eed l\u00fd h\u1ea1t gi\u1ed1ng v\u00e0 \u1ee7 h\u1ea1t<\/h3>\n

    X\u1eed l\u00fd h\u1ea1t gi\u1ed1ng b\u1eb1ng ZnO nano-grade c\u00f3 th\u1ec3 \u0111\u1eb7t k\u1ebdm g\u1ea7n h\u1ea1t trong giai \u0111o\u1ea1n n\u1ea3y m\u1ea7m v\u00e0 ph\u00e1t tri\u1ec3n ban \u0111\u1ea7u c\u1ee7a c\u00e2y. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u \u0111\u1ec3 c\u1ea3i thi\u1ec7n s\u1ee9c s\u1ed1ng c\u1ee7a c\u00e2y con, kh\u1ea3 n\u0103ng cung c\u1ea5p k\u1ebdm v\u00e0 s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e2y, \u0111\u1ed3ng th\u1eddi m\u1ed9t s\u1ed1 nghi\u00ean c\u1ee9u c\u0169ng b\u00e1o c\u00e1o t\u00e1c \u0111\u1ed9ng l\u00ean s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a m\u1ea7m b\u1ec7nh trong \u0111\u1ea5t.<\/p>\n

    Nghi\u00ean c\u1ee9u v\u1ec1 c\u00e1c lo\u1ea1i c\u00e2y tr\u1ed3ng nh\u01b0 h\u1ea1t lanh v\u00e0 l\u00faa \u0111\u00e3 \u0111\u00e1nh gi\u00e1 c\u00e1c n\u1ed3ng \u0111\u1ed9 kh\u00e1c nhau c\u1ee7a nano ZnO d\u00f9ng \u0111\u1ec3 x\u1eed l\u00fd v\u00e0 \u1ee7 h\u1ea1t gi\u1ed1ng. C\u00e1c k\u1ebft qu\u1ea3 \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o bao g\u1ed3m nh\u1eefng thay \u0111\u1ed5i trong kh\u1ea3 n\u0103ng n\u1ea3y m\u1ea7m, s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e2y con v\u00e0 t\u00ecnh tr\u1ea1ng c\u00e2y tr\u1ed3ng. Do ph\u1ea3n \u1ee9ng kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i h\u1ea1t gi\u1ed1ng, \u0111\u1eb7c t\u00ednh c\u1ee7a h\u1ea1t v\u00e0 \u0111i\u1ec1u ki\u1ec7n x\u1eed l\u00fd, c\u00e1c n\u1ed3ng \u0111\u1ed9 \u0111\u00e3 c\u00f4ng b\u1ed1 n\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 t\u00e0i li\u1ec7u tham kh\u1ea3o cho nghi\u00ean c\u1ee9u ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ee9c \u00e1p d\u1ee5ng chung.<\/p>\n

    \u0110i\u1ec1u quan tr\u1ecdng c\u1ea7n l\u01b0u \u00fd khi x\u1eed l\u00fd h\u1ea1t gi\u1ed1ng l\u00e0 \u0111\u1ed9 ph\u1ee7 v\u00e0 ph\u00e2n t\u00e1n \u0111\u1ed3ng \u0111\u1ec1u. M\u1ed9t s\u1ea3n ph\u1ea9m oxit k\u1ebdm nano \u0111\u01b0\u1ee3c pha ch\u1ebf t\u1ed1t n\u00ean duy tr\u00ec s\u1ef1 ph\u00e2n b\u1ed1 \u0111\u1ed3ng nh\u1ea5t c\u1ee7a c\u00e1c h\u1ea1t tr\u00ean b\u1ec1 m\u1eb7t h\u1ea1t gi\u1ed1ng v\u00e0 cung c\u1ea5p l\u01b0\u1ee3ng k\u1ebdm c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c trong giai \u0111o\u1ea1n sinh tr\u01b0\u1edfng s\u1edbm.<\/p>\n

    \u1ee8ng d\u1ee5ng qua l\u00e1 \u0111\u1ec3 qu\u1ea3n l\u00fd b\u1ec7nh c\u00e2y tr\u1ed3ng<\/h3>\n

    \u1ee8ng d\u1ee5ng qua l\u00e1 \u0111\u1eb7t tr\u1ef1c ti\u1ebfp nano oxit k\u1ebdm ho\u1ea1t t\u00ednh l\u00ean b\u1ec1 m\u1eb7t c\u00e2y tr\u1ed3ng v\u00e0 \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p khi vi\u1ec7c b\u1ed5 sung k\u1ebdm v\u00e0 qu\u1ea3n l\u00fd b\u1ec7nh \u0111\u01b0\u1ee3c xem x\u00e9t c\u00f9ng l\u00fac. Nano ZnO c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi m\u1ea7m b\u1ec7nh tr\u00ean b\u1ec1 m\u1eb7t l\u00e1 v\u00e0 c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ph\u1ea3n \u1ee9ng ph\u00f2ng th\u1ee7 c\u1ee7a c\u00e2y, m\u1eb7c d\u00f9 hi\u1ec7u qu\u1ea3 th\u1ef1c t\u1ebf ph\u1ee5 thu\u1ed9c v\u00e0o c\u00f4ng th\u1ee9c, n\u1ed3ng \u0111\u1ed9, lo\u00e0i c\u00e2y tr\u1ed3ng v\u00e0 m\u1ea7m b\u1ec7nh.<\/p>\n

    Nghi\u00ean c\u1ee9u \u0111\u00e3 \u0111\u00e1nh gi\u00e1 c\u00e1c bi\u1ec7n ph\u00e1p x\u1eed l\u00fd qua l\u00e1 b\u1eb1ng nano ZnO tr\u00ean c\u00e1c lo\u1ea1i c\u00e2y tr\u1ed3ng nh\u01b0 l\u00faa m\u00ec v\u00e0 c\u00e0 chua. C\u00e1c nghi\u00ean c\u1ee9u \u0111\u00e3 b\u00e1o c\u00e1o nh\u1eefng thay \u0111\u1ed5i v\u1ec1 m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng c\u1ee7a b\u1ec7nh, s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e2y v\u00e0 t\u00ecnh tr\u1ea1ng dinh d\u01b0\u1ee1ng trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u00ed nghi\u1ec7m c\u1ee5 th\u1ec3. Nh\u1eefng ph\u00e1t hi\u1ec7n n\u00e0y \u1ee7ng h\u1ed9 vi\u1ec7c ti\u1ebfp t\u1ee5c \u0111\u00e1nh gi\u00e1 oxit k\u1ebdm nano nh\u01b0 m\u1ed9t ph\u1ea7n c\u1ee7a c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh qu\u1ea3n l\u00fd b\u1ec7nh c\u00e2y tr\u1ed3ng thay v\u00ec s\u1eed d\u1ee5ng n\u00f3 nh\u01b0 m\u1ed9t ch\u1ea5t thay th\u1ebf ph\u1ed5 bi\u1ebfn cho c\u00e1c thu\u1ed1c tr\u1eeb n\u1ea5m th\u00f4ng th\u01b0\u1eddng.<\/p>\n

    C\u00e1c c\u00f4ng th\u1ee9c phun qua l\u00e1 c\u0169ng c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 v\u1ec1 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh huy\u1ec1n ph\u00f9, \u0111\u1ed9 ph\u1ee7 l\u00e1, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c ch\u1ea5t ph\u1ee5 gia v\u00e0 ti\u1ec1m n\u0103ng g\u00e2y \u0111\u1ed9c cho c\u00e2y. Nh\u1eefng y\u1ebfu t\u1ed1 c\u00f4ng th\u1ee9c n\u00e0y c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a nano ZnO sau khi phun.<\/p>\n

    \u1ee8ng d\u1ee5ng v\u00e0o \u0111\u1ea5t \u0111\u1ec3 cung c\u1ea5p k\u1ebdm cho v\u00f9ng r\u1ec5<\/h3>\n

    \u1ee8ng d\u1ee5ng oxit k\u1ebdm nano ho\u1ea1t t\u00ednh v\u00e0o \u0111\u1ea5t cung c\u1ea5p m\u1ed9t con \u0111\u01b0\u1eddng kh\u00e1c \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 kh\u1ea3 n\u0103ng cung c\u1ea5p k\u1ebdm xung quanh v\u00f9ng r\u1ec5. T\u00f9y thu\u1ed9c v\u00e0o t\u00ednh ch\u1ea5t \u0111\u1ea5t v\u00e0 c\u00f4ng th\u1ee9c, nano ZnO c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c h\u1ea1t \u0111\u1ea5t, \u0111\u1ed9 \u1ea9m, vi sinh v\u1eadt v\u00e0 r\u1ec5 c\u00e2y.<\/p>\n

    Nghi\u00ean c\u1ee9u \u0111\u00e3 b\u00e1o c\u00e1o nh\u1eefng thay \u0111\u1ed5i v\u1ec1 n\u0103ng su\u1ea5t c\u00e2y tr\u1ed3ng, kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 dinh d\u01b0\u1ee1ng v\u00e0 c\u00e1c th\u00f4ng s\u1ed1 sinh l\u00fd sau khi b\u00f3n nano ZnO v\u00e0o \u0111\u1ea5t. Tuy nhi\u00ean, k\u1ebft qu\u1ea3 c\u00f3 th\u1ec3 thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1ed9 pH \u0111\u1ea5t, ch\u1ea5t h\u1eefu c\u01a1, \u0111\u1ed9 \u1ea9m, t\u1ef7 l\u1ec7 b\u00f3n v\u00e0 lo\u00e0i c\u00e2y tr\u1ed3ng. V\u00ec l\u00fd do n\u00e0y, vi\u1ec7c b\u00f3n v\u00e0o \u0111\u1ea5t n\u00ean \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 theo \u0111i\u1ec1u ki\u1ec7n \u0111\u1ea5t t\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng thay v\u00ec ch\u1ec9 d\u1ef1a v\u00e0o m\u1ed9t t\u1ef7 l\u1ec7 khuy\u1ebfn ngh\u1ecb duy nh\u1ea5t.<\/p>\n

    \u0110\u1ed1i v\u1edbi c\u00e1c c\u00f4ng th\u1ee9c n\u00f4ng nghi\u1ec7p th\u01b0\u01a1ng m\u1ea1i, \u0111\u1ed9 ph\u00e2n t\u00e1n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a h\u1ea1t l\u00e0 \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng. S\u1ef1 t\u1ee5 t\u1eadp trong \u0111\u1ea5t ho\u1eb7c h\u1ed7n h\u1ee3p phun c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc h\u1ea1t hi\u1ec7u qu\u1ea3 v\u00e0 gi\u1ea3m l\u1ee3i th\u1ebf v\u1ec1 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t m\u00e0 oxit k\u1ebdm nano mang l\u1ea1i.<\/p>\n

    Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c c\u00f4ng th\u1ee9c n\u00f4ng nghi\u1ec7p<\/h3>\n

    Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng kh\u00e1c khi \u0111\u01b0a nano oxit k\u1ebdm ho\u1ea1t t\u00ednh v\u00e0o ch\u01b0\u01a1ng tr\u00ecnh qu\u1ea3n l\u00fd c\u00e2y tr\u1ed3ng hi\u1ec7n c\u00f3. \u0110\u1ed9 ph\u00f9 h\u1ee3p \u0111\u1ec3 tr\u1ed9n trong b\u1ed3n ho\u1eb7c trong c\u00e1c s\u1ea3n ph\u1ea9m \u0111\u00e3 pha ch\u1ebf ph\u1ee5 thu\u1ed9c v\u00e0o t\u00ednh ch\u1ea5t b\u1ec1 m\u1eb7t h\u1ea1t, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh ph\u00e2n t\u00e1n, h\u00f3a h\u1ecdc c\u00f4ng th\u1ee9c v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c trong h\u1ed7n h\u1ee3p.<\/p>\n

    M\u1ed9t s\u1ed1 nghi\u00ean c\u1ee9u \u0111\u00e3 kh\u1ea3o s\u00e1t s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa nano ZnO v\u1edbi c\u00e1c t\u00e1c nh\u00e2n ki\u1ec3m so\u00e1t sinh h\u1ecdc nh\u01b0 Trichoderma<\/em>. Tuy nhi\u00ean, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u00e0 hi\u1ec7u \u1ee9ng hi\u1ec7p \u0111\u1ed3ng c\u1ea7n \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn \u0111\u1ed1i v\u1edbi t\u1eebng c\u00f4ng th\u1ee9c c\u1ee5 th\u1ec3 ch\u1ee9 kh\u00f4ng n\u00ean quy ch\u1ee5p cho t\u1ea5t c\u1ea3 c\u00e1c s\u1ea3n ph\u1ea9m.<\/p>\n

    \u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 pha ch\u1ebf v\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t nguy\u00ean li\u1ec7u n\u00f4ng nghi\u1ec7p, vi\u1ec7c \u0111\u00e1nh gi\u00e1 th\u1ef1c t\u1ebf n\u00ean bao g\u1ed3m \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh ph\u00e2n t\u00e1n, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh b\u1ea3o qu\u1ea3n, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch khi tr\u1ed9n trong b\u1ed3n, hi\u1ec7u su\u1ea5t \u1ee9ng d\u1ee5ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng c\u1ee7a c\u00e2y tr\u1ed3ng. M\u1ed9t b\u1ea3ng d\u1eef li\u1ec7u k\u1ef9 thu\u1eadt v\u00e0 \u0111\u00e1nh gi\u00e1 m\u1eabu c\u00f3 th\u1ec3 l\u00e0 \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u h\u1eefu \u00edch khi \u0111\u00e1nh gi\u00e1 m\u1ed9t s\u1ea3n ph\u1ea9m nano oxit k\u1ebdm ho\u1ea1t t\u00ednh.<\/p>\n

    B\u1ed1i c\u1ea3nh th\u1ecb tr\u01b0\u1eddng: S\u1ef1 quan t\u00e2m ng\u00e0y c\u00e0ng t\u0103ng \u0111\u1ed1i v\u1edbi oxit k\u1ebdm nano<\/h2>\n

    S\u1ef1 quan t\u00e2m \u0111\u1ebfn oxit k\u1ebdm nano \u0111ang gia t\u0103ng khi c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t n\u00f4ng nghi\u1ec7p v\u00e0 ng\u01b0\u1eddi tr\u1ed3ng tr\u1ecdt t\u00ecm ki\u1ebfm c\u00e1c gi\u1ea3i ph\u00e1p thay th\u1ebf cho vi\u1ec7c b\u1ed5 sung k\u1ebdm v\u00e0 qu\u1ea3n l\u00fd b\u1ec7nh c\u00e2y tr\u1ed3ng. Ngo\u00e0i vai tr\u00f2 dinh d\u01b0\u1ee1ng nh\u01b0 ngu\u1ed3n cung c\u1ea5p k\u1ebdm, nano ZnO c\u00f2n \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u v\u1ec1 kh\u1ea3 n\u0103ng kh\u00e1ng khu\u1ea9n v\u00e0 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn ph\u1ea3n \u1ee9ng ph\u00f2ng th\u1ee7 c\u1ee7a c\u00e2y tr\u1ed3ng.<\/p>\n

    Tuy nhi\u00ean, vi\u1ec7c \u00e1p d\u1ee5ng ph\u1ee5 thu\u1ed9c nhi\u1ec1u h\u01a1n ch\u1ec9 v\u00e0o k\u00edch th\u01b0\u1edbc h\u1ea1t. C\u00f4ng th\u1ee9c s\u1ea3n ph\u1ea9m, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh ph\u00e2n t\u00e1n, y\u00eau c\u1ea7u \u1ee9ng d\u1ee5ng, c\u00e1c y\u1ebfu t\u1ed1 quy \u0111\u1ecbnh v\u00e0 hi\u1ec7u su\u1ea5t \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u00e2y tr\u1ed3ng c\u1ee5 th\u1ec3 \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c oxit k\u1ebdm nano c\u00f3 ph\u00f9 h\u1ee3p \u0111\u1ec3 s\u1eed d\u1ee5ng trong n\u00f4ng nghi\u1ec7p th\u01b0\u01a1ng m\u1ea1i hay kh\u00f4ng.<\/p>\n

    \u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t nguy\u00ean li\u1ec7u n\u00f4ng nghi\u1ec7p, s\u1ef1 quan t\u00e2m ng\u00e0y c\u00e0ng t\u0103ng \u0111\u1ed1i v\u1edbi oxit k\u1ebdm nano c\u0169ng t\u1ea1o ra nhu c\u1ea7u v\u1ec1 vi\u1ec7c x\u00e1c \u0111\u1ecbnh s\u1ea3n ph\u1ea9m m\u1ed9t c\u00e1ch th\u1ed1ng nh\u1ea5t h\u01a1n. C\u00e1c th\u00f4ng s\u1ed1 r\u00f5 r\u00e0ng v\u00e0 d\u1eef li\u1ec7u \u1ee9ng d\u1ee5ng c\u00f3 th\u1ec3 gi\u00fap c\u00e1c nh\u00e0 pha ch\u1ebf x\u00e1c \u0111\u1ecbnh li\u1ec7u v\u1eadt li\u1ec7u \u0111\u00f3 c\u00f3 ph\u00f9 h\u1ee3p \u0111\u1ec3 s\u1eed d\u1ee5ng trong ph\u00e2n b\u00f3n, s\u1ea3n ph\u1ea9m phun qua l\u00e1, x\u1eed l\u00fd h\u1ea1t gi\u1ed1ng hay c\u00e1c c\u00f4ng th\u1ee9c qu\u1ea3n l\u00fd c\u00e2y tr\u1ed3ng kh\u00e1c hay kh\u00f4ng.<\/p>\n

    Nh\u1eefng \u0111i\u1ec1u c\u1ea7n ch\u00fa \u00fd khi l\u1ef1a ch\u1ecdn nh\u00e0 cung c\u1ea5p oxit k\u1ebdm nano ho\u1ea1t t\u00ednh<\/h3>\n

    Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c s\u1ea3n ph\u1ea9m oxit k\u1ebdm nano \u0111\u1ec1u c\u00f3 c\u00f9ng \u0111\u1eb7c t\u00ednh v\u1eadt l\u00fd ho\u1eb7c h\u00f3a h\u1ecdc. Khi \u0111\u00e1nh gi\u00e1 nh\u00e0 cung c\u1ea5p, ng\u01b0\u1eddi mua n\u00ean xem x\u00e9t nhi\u1ec1u th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt thay v\u00ec ch\u1ec9 d\u1ef1a v\u00e0o k\u00fd hi\u1ec7u \u201cnano\u201d \u0111\u01a1n thu\u1ea7n.<\/p>\n