Facile green synthesis of silver nanoparticles using Crocus Haussknechtii Bois bulb extract: Catalytic activity and antibacterial properties

Green synthesis of silver nanoparticles using plant extracts and their antimicrobial activities: a review of recent literature

“…A diverse tube/bulb extract of plants are reported for the green synthesis of AgNPs ( 299 were utilized for the green synthesis of AgNPs and examined the bactericidal activity of the synthesized nanoparticles against both Gram-positive and Gram-negative bacterial strains. It is reported that, spherical AgNPs with size range 10-25 nm was obtained using 20 mM AgNO 3 , 0.5 mL Crocus haussknechtii Bois extract at pH 7 and temperature of 75 C. 299 An obvious result was obtained in case of Dioscorea alata mediated AgNPs, where it is observed that the ZOI for E. coli is greater than S. aureus. 298 In another work, aqueous extract of Allium sativum was employed as both reducing and capping agent for the synthesis of AgNPs.…”

Adsorption of Cr(VI), Ni(II), Fe(II) and Cd(II) ions by KIAgNPs decorated MWCNTs in a batch and fixed bed process

“…The observed peaks were attributed to the bending and stretching due to alkene, alkane, alkyne and phenolic groups. Also, the observed absorption bands on MWCNTs-KIAgNPs before and after adsorption at 1078 and 3000 cm −1 were attributable to the vibrational stretching of C–O and O–H due to alkanes and carboxylic groups 58 . Noticeably, a very strong peak peculiar to KIAgNPs was found at 1700 cm −1 which corresponds to C=O stretching vibration of the amine 37 .…”

“…In this study, FTIR analysis validated that Ag + reduction occurred due to various functional groups: flavonoids, tannins, phenols, terpenoids and polysaccharides present in the KI extract 37 . Furthermore, carbonyl groups bind to metals better than amino acids and proteins which principally forms coating layer on the metal nanoparticles surface, thereby suitably inhibiting accumulation and improving KIAgNPs stability 58 . More still, amine (–NH), carboxyl (–C=O) and hydroxyl (-OH) groups constituents of KI extract enhances the stability of KIAgNPs 32 .…”

Metal-enhancement study of dual functional photosensitizers with aggregation-induced emission and singlet oxygen generation

“…Plasmonic nanoparticles (NPs) such as gold and silver NPs, have unprecedented ability to localize and enhance their surrounding electric eld and conne it into subwavelength volumes due to the excitation of their surface plasmon resonance (SPR) by the incident electromagnetic eld, leading to several applications from structural color printing, 8,9 energy storage, 10 and catalysis [11][12][13][14] to metal NPs-based biosensors [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29] development. More recently, these localised SPR effects have been exploited to enhance the optoelectronic properties of functional materials, such as uorophores and photosensitizers, leading to a new eld of studying metal-enhanced uorescence (MEF) [30][31][32][33][34][35][36][37][38][39][40][41] and singlet oxygen generation (ME-SOG).…”