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Biosintesi di nanoparticelle d'argento e suoi effetti

Biosintesi di nanoparticelle d'argento e suoi effetti


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About the Book

Lo sviluppo di un processo affidabile ed ecologico per la sintesi di nanoparticelle metalliche è un passo importante nel campo delle nanotecnologie. È stato fatto uno sforzo per la biosintesi di nanoparticelle d'argento da Trichoderma asperallum, un potenziale agente di biocontrollo indigeno. Il nitrato d'argento è stato aggiunto come precursore per la sintesi delle nanoparticelle d'argento. Le nanoparticelle d'argento biosintetizzate sono state caratterizzate mediante spettrofotometro UV-Vis, Dynamic Light Scattering (DLS), diffrazione di raggi X (XRD), Zeta Sizer e microscopio elettronico a trasmissione (TEM). Lo spettro UV Vis del mezzo acquoso contenente ione argento ha mostrato un picco alla lunghezza d'onda di 420 nm, corrispondente all'assorbimento plasmonico della nanoparticella d'argento. Lo studio DLS ha mostrato che le nanoparticelle d'argento biosintetizzate hanno una dimensione di 27,64 nm con un indice di polidispersità (PDI) pari a 0,409. Ciò indica che le nanoparticelle biosintetizzate erano polidisperse in natura. La carica delle nanoparticelle d'argento è stata determinata con lo zeta sizer ed è risultata avere un valore di potenziale negativo di -1,34, indicando che la dispersione è stabile. Lo studio TEM ha rivelato la formazione di nanoparticelle d'argento ben disperse nell'intervallo 9-41 nm con forma approssimativamente sferica.


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Product Details
  • ISBN-13: 9786206980216
  • Publisher: KS Omniscriptum Publishing
  • Binding: Paperback
  • Language: Italian
  • Returnable: N
  • Weight: 186 gr
  • ISBN-10: 6206980219
  • Publisher Date: 24 Dec 2023
  • Height: 229 mm
  • No of Pages: 84
  • Spine Width: 5 mm
  • Width: 152 mm


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