One‐Pot Bio‐Assisted Synthesis of Stable Ag–AgCl System Using Jellyfish‐Based Scaffold for Plasmonic Photocatalysis Applications

Abstract

dopants, forming heterojunctions using small bandgap semiconductors, or sensitization of the materials with organic chromophores to widen the adsorption toward the visible light. [10][11][12][13] In this regard, one of the most promising methodologies demonstrated is plasmonic photocatalysis (PPC). [14] In PPC, metal nanoparticles (NPs) are dispersed on the semiconductor surface and facilitate light absorbance at their localized surface plasmon resonance frequency (usually in the visible range), while the Schottky junction between the NPs and the semiconductor allows the electrons and holes to diffuse in different directions once they are created, and promotes charge separation. [15,16] When taking place in an aqueous environment, the photogenerated electrons can then be trapped by surface adsorbed molecular O 2 dissolved in water and reduce to superoxide (•O 2

Mucin‐Based Composites for Efficient Mercuric Biosorption

“…[30] Mucin was also shown to have reductive capabilities, enabling it to synthesize nanoparticles within its structure. [31][32][33][34][35] In living forms, mucins use their intermolecular interactions to assemble a semi-permeable viscous mesh, called mucus [29] whose primary role is to protect various organs or cells from the outside environment and block harmful particle molecules and pathogens. [36,37] Due to its selective binding to cations, [38] the intestinal mucus barrier has been suggested to act as a "coarse filter" in regulating metal uptake, allowing passage of essential metals (e.g., Na, Ca, Zn) to the bloodstream while obstructing other metals (e.g., Cr, Fe, Al, Pb) and excreting them back into the lumen.…”

From nanoparticles to crystals: one-pot programmable biosynthesis of photothermal gold structures and their use for biomedical applications

“…It has been previously suggested [19,21] that control over the protein's tertiary structure is essential for obtaining the desired products. This can be achieved by tuning the pH of the reaction, as demonstrated in of mucins proteins [22,23], and in particular in the case of porcine gastric mucin (PGM) [24][25][26][27] a high molecular weight type of glycoprotein [28][29][30][31].…”

Selective metal recovery by mucin: turning gold from wastewater into a peroxymonosulfate-activated catalyst

“…32,33 Importantly, mucin has also been shown to participate in a bio-assisted synthesis of metal ion-derived NPs within the mucin structure (particularly, with gold, palladium, and silver). 28,34,35 It is assumed that the cysteine amino acid in mucin's molecule can serve as a reduction agent, as its thiol groups can reduce metal ions. 36 Mucin can also serve as the scaffold for NPs formed on the mucin surface, which affects the NP structure and size and stabilizes the NPs from aggregating.…”