Silver Nanoparticles

Evaluation of strategies to incorporate silver nanoparticles into electrospun microfibers for the preparation of wound dressings and their antimicrobial activity

“…In the study carried out by Álvarez-Suárez, et al, [15], it was argued that the incorporation of PVP in the PCL is monitored by the increase of the band corresponding to C=O (carbonyl group of the amide) at 1724 cm -1 , which can be seen in the above Figure 6, this band appears in all the signals except for Ag + /PCL-PVPsmrb and Ag + /PCL-PVPsmra. This phenomenon may be observed because the polymeric matrices for these samples are exposed to a higher concentration of nitrates due to the silver mirror reaction method, where the higher nitrates concentration decreases the signal intensity [52]. This signal intensity decrement could have been superimposed on the C=O band (carbonyl group of the amide).…”

“…According to some studies regarding the oxidation of AgNPs and its analysis by Khaydarov and associates, the problems related to the bioaccumulation and toxicity of AgNPs have to be considered from the point of view of the potential toxicity of Ag + [75][76][77]. AgNPs were shown to be bioavailable in patients who suffered burns and were treated with a bandage covered with AgNPs.…”

Preparation of Highly Concentrated Uniform-Sized Silver Nanoparticles via Use of Thermoresponsive Zwitterionic Surfactants

“…Synthetic preparation of nanoparticles (NPs) confined in organized assemblies or microdomains such as microparticles, microdroplets, micellar microreactors, and emulsions has been intensely researched , owing to the enhanced chemical properties of the NPs confined in such self-assembled systems, which result in a wide variety of functions. − Among NPs, silver NPs (AgNPs) are widely utilized in many fields such as catalysis, − spectroscopy, , sensors, , medical agents, and cancer treatments. , In the one-pot chemical synthesis of AgNPs, the control of the NP size and shape is particularly challenging. ,− Despite the popular use of citrate for the reduction of Ag ions, ,− the interaction between the Ag surface and the citrate ion results in a very slow crystal growth (with size control) compared with other chemical methods (e.g., sodium borate) or those assisted by physical radiation. − To overcome this problem, some approaches such as the stepwise increase in the concentration or the use of additives were reported. In addition, the control of the size of AgNPs is relatively difficult compared with the synthesis of gold NPs (AuNPs) using the citrate reduction method .…”

“…Synthetic preparation of nanoparticles (NPs) confined in organized assemblies or microdomains such as microparticles, microdroplets, micellar microreactors, and emulsions has been intensely researched 1,2 owing to the enhanced chemical properties of the NPs confined in such self-assembled systems, which result in a wide variety of functions. 2−5 Among NPs, silver NPs (AgNPs) are widely utilized in many fields such as catalysis, 6−9 spectroscopy, 10,11 sensors, 12,13 medical agents, 14 and cancer treatments. 15,16 In the one-pot chemical synthesis of AgNPs, the control of the NP size and shape is particularly challenging.…”

Synthesis Emission Spectra of (LIPS) Technique for Cu, Ag Nanoparticles and their Antibacterial Activity

“…The Plasma parameter is dependent on the plasma density e and Debye length . Nanotechnology is an important field of modern research in the field of particle structure design, synthesis, and manipulation, ranging from approximately 1-100 nm [12]. Laser liquid ablation is shown as an alternative way to create nanoparticles that are useful in a wide range of applications.…”