A concave rhombic dodecahedron (RD) gold nanoparticle was synthesized by adding 4-aminothiophenol (4-ATP) during growth from seeds. This shape is enclosed stabilized facets of various high-indexes, such as (331), (221), and (553). Because it driven thermodynamically 4-ATP ligands, the RD maintains its structure over a few months, even after rigorous electrochemical reactions. We discussed mechanism evolution controlled found that both binding energy Au-S aromatic geometry are major...

For the efficient electroconversion of CO2 to formate, CO and H2 evolution must be suppressed. Herein, carbon-supported BiOx nanoparticles (BiOx/C) were investigated as a potential candidate for reduction. In bicarbonate solutions, BiOx/C catalysts exhibited high Faradaic efficiency 93.4% formate from −1.37 −1.70 V versus Ag/AgCl with negligible amount H2. Stable partial current densities efficiencies also achieved in 0.5 M NaCl (12.5 mA cm–2 96.0%, respectively). The possible reaction...

Chiral plasmonic nanostructures have opened up unprecedented opportunities in optical applications. We present chirality evolution nanoparticles focusing on the crystallographic aspects and elucidate key parameters for chiral structure formation. From a detailed understanding of formation, we achieved morphology (432 Helicoid IV) three-dimensionally controlled based rhombic dodecahedral shape. The role synthesis parameters, seed, cysteine, cetyltrimethylammonium bromide ascorbic acid...

Synthesis of chiral plasmonic materials has been highlighted for the last decades with their optical properties and versatile potential applications. Recently reported aqueous-based amino acid- peptide-directed synthesis gold nanoparticles 432 point-group symmetry shows exceptionally high chiroptic response within 100 nm scales. Despite its already excellent response, a single-nanoparticle dark field scattering study revealed that full nanoparticle is limited overall synthetic uniformity....

Abstract Chiral optical metamaterials with delicate structures are in high demand various fields because of their strong light–matter interactions. Recently, a scalable strategy for the synthesis chiral plasmonic nanoparticles (NPs) using amino acids and peptides has been reported. Reported herein, 3D gold NPs were synthesized dipeptide γ‐Glu‐Cys Cys‐Gly analyzed crystallographically. The γ‐Glu‐Cys‐directed present cube‐like outline protruding wing. In comparison, exhibited rhombic...

Whitlockite (WH: Ca18Mg2(HPO4)2(PO4)12) is the second most abundant mineral in hard tissues, but its precipitation mechanism or role body system poorly understood. Here, using a newly discovered synthetic method for WH, we investigated kinetic of WH under physiologically similar conditions, excluding any effects toxic ions. Based on systematically classified stages process monitored transformation calcium phosphate phases from neutral pH to acidic with addition H3PO4. The study revealed that...

The shape control of gold nanoparticles is still one the most important challenges remaining to achieve geometry-dependent properties. Thus far, several strategies have been developed nanoparticles, such as adding capping agents and diverse additives or adjusting temperature pH. Here, we used an already established seed-mediated method which allowed us focus on controlling growth stage. Cetyltrimethylammonium bromide (CTAB) ascorbic acid (AA) were ligand reducing agent, respectively, without...

The reaction mechanism of electrochemical chloride oxidation at neutral pH is different from that acidic pH, in which a commercial chlor-alkali process has been developed. Different proton concentrations and accelerated hydrolysis the generated chlorine into hypochlorous acid high can change electrokinetics stability intermediates. We have investigated unique Co3O4 nanoparticles for pH. In contrast with water oxidation, valency cobalt was not changed during oxidation. Interestingly, new...

Molecular chirality is represented as broken mirror symmetry in the structural orientation of constituent atoms and plays a pivotal role at every scale nature. Since discovery chiroptic property chiral molecules, characterization molecular important fields biology, physics, chemistry. Over centuries, field optical sensing was based on light–matter interactions between molecules polarized light. Starting from simple optics-based sensing, utilization plasmonic materials that could control...

In this review, we exploit recent investigations to identify the exceptional roles of amino acids and peptides in chirality, based on local atomic conformation macroscopic chiral morphology.

When a chiral nanoparticle is optically trapped using circularly polarized laser beam, circular polarization (CP)-dependent gradient force can be induced on the particle. We investigated CP-dependent exerted three-dimensional nanoparticles. The experimental results showed that depended handedness of CP trapping light and particle chirality. analysis revealed spectral features handedness-dependent are influenced not only by real part refractive index but also electromagnetic field perturbed...

Optical nanofibers are waveguides known for their unique property to produce intense evanescent fields which have subwavelength transverse confinement easily extendable over thousands of wavelengths along the fiber axis. Moreover, circularly polarized fundamental modes a nanofiber chiral, that is, lacking mirror symmetry. Here, we use these two properties demonstrate chirality-selective optical transport waterborne chiral material object - chemically synthesized gold nanocube with twisted...

A M13 virus based SERS nanoprobe is presented. Gold nanocubes closely aligned into chains along the length of intensify Raman signals various reporter molecules serving as specific labels. An antibody expressed at one end to detect analyte. This new holds promise for infinitesimal and multiplexed detection any antigen. As a service our authors readers, this journal provides supporting information supplied by authors. Such materials are peer reviewed may be re-organized online delivery, but...

Abstract The field of chiral plasmonics has received increasing attention in various areas nanoscience due to the unprecedented light‐matter interactions and promising optical applications. Chiral arrangement nanoparticles is one strategies employed for fabrication nanostructures. These arrays exhibit collective chirality, where chiroptical properties are governed by geometrical parameters with nanometer precision. In this regard, self‐assembly biomolecules, such as peptides, DNA,...

Abstract New morphology of palladium nanoparticles is demonstrated by utilizing the interaction amino acid and metallic surface. Chiral cysteine molecules induce chiral spiral structure evolution. The resulting show rotational direction preference with respect to handedness added molecule. strong correlation morphologies surfactant concentration exists for effective generation chirality. Synthesized are around 100 nm sized cubic based each face cube containing a structure. Generation...

Proton conduction is an essential process that regulates integral part of several enzymatic catalyses and bioenergetics. flows in biological entities are sensitively controlled by mechanisms. To understand manipulate proton biosystems, studies have investigated bulk biomaterials such as polyaspartic acid, collagen, reflectin, serum albumin mats, eumelanin. However, little known about the conductivity short peptides their sequence‐dependent behavior. Here, this paper focuses on a...

Abstract Materials generating circularly polarized luminescence (CPL) have received increasing interest due to their potential applications in bioimaging, sensing, anticounterfeiting, and display technologies. The possibility of efficient CPL generation is explored for organic molecules, inorganic materials, hybrid systems. A chiral plasmonic nanostructure one candidate strong highly dissymmetric by coupling with the surrounding luminescent material. Here, inherent gold nanoparticles can...

Chiral inorganic nanomaterials hold significant promise for various applications, including enantioselective catalysis, polarization-controlling optical devices, metamaterials, and molecular sensors. In our previous work, we presented a method synthesizing chiral Au 432 helicoid III (Au helicoids) from peptides amino acids, where helical gaps are intricately arranged with symmetry within single cubic nanoparticles. this study, have achieved the fabrication of silica molds through etching...

We have investigated the role of peptide folding and developed strategies to make assembled gold nanostructures.

Abstract Chiral plasmonics has been actively pursued since pushing its light‐matter interaction to an unnaturally extreme regime. Recently, chirality‐encoded metal–insulator–metal (MIM) motifs have promised compelling advantages in advancing chiroptic responses, as they enable a capacitive coupling and resultant strong electric magnetic resonances. However, the deterministic control over chiral MIM working at visible regime is out of reach. Here, large‐area resonators are demonstrated using...