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<p>In the present study, silver nanoparticles (AgNPs) were synthesized using a plant leaf extract, and their antibacterial potential against multidrug-resistant (MDR) poultry bacterial strains and a wide range of pathogens was evaluated. Their anti-inflammatory activity was also investigated. The aqueous leaf extract of <i>Crotalaria pallida</i> (<i>Cp</i>) was used to synthesize <i>Cp</i>-AgNPs. The synthesized AgNPs were confirmed by UV–Vis, XRD, FTIR, SEM, EDX, and TEM analyses. They have spherical shapes with an average particle size of 21.3 ± 12.5&#xa0;nm. <i>Cp</i>-AgNPs were tested for their antibacterial activity against MDR bacteria, <i>E. coli</i>, and <i>K. pneumoniae</i>, isolated from poultry farms in Bangladesh, showing inhibition rates of 49.40 at 300 and 50.99% at 400&#xa0;µg/mL, respectively. Additionally, <i>Cp</i>-AgNPs demonstrated strong antibacterial effects against a broad spectrum of pathogenic bacteria. They also showed anti-inflammatory potential. This highlights the multifunctional potential of AgNPs for developing new metal nanomaterials for biomedical applications.</p> Graphical abstract <p></p>

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Crotalaria pallida leaf extract-derived silver nanoparticles to combat multidrug-resistant gram-negative poultry pathogens and inflammation

  • 期刊论文

  • 发表日期：

    2026年6月1日

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  • Farhana Rumzum Bhuiyan,
  • Sameha Ashrafee,
  • Umma Salma Nizum,
  • Sabonty Bhattacharjee,
  • Nazia Naznin,
  • Abu Yousuf,
  • Md. Al-Amin,
  • Harinarayan Das,
  • A. K. M. Atique Ullah,
  • Sanjida Islam Sondha,
  • Shuvo Chandra Das,
  • Shipan Das Gupta,
  • Sabbir Howlader,
  • Sumon Ganguli,
  • Samiran Bhattacharjee

摘要

In the present study, silver nanoparticles (AgNPs) were synthesized using a plant leaf extract, and their antibacterial potential against multidrug-resistant (MDR) poultry bacterial strains and a wide range of pathogens was evaluated. Their anti-inflammatory activity was also investigated. The aqueous leaf extract of Crotalaria pallida (Cp) was used to synthesize Cp-AgNPs. The synthesized AgNPs were confirmed by UV–Vis, XRD, FTIR, SEM, EDX, and TEM analyses. They have spherical shapes with an average particle size of 21.3 ± 12.5 nm. Cp-AgNPs were tested for their antibacterial activity against MDR bacteria, E. coli, and K. pneumoniae, isolated from poultry farms in Bangladesh, showing inhibition rates of 49.40 at 300 and 50.99% at 400 µg/mL, respectively. Additionally, Cp-AgNPs demonstrated strong antibacterial effects against a broad spectrum of pathogenic bacteria. They also showed anti-inflammatory potential. This highlights the multifunctional potential of AgNPs for developing new metal nanomaterials for biomedical applications.

Graphical abstract