Advertisement

Topics

Lateral sorting of chiral nanoparticles using Fano-enhanced chiral force in visible region.

07:00 EST 28th November 2017 | BioPortfolio

Summary of "Lateral sorting of chiral nanoparticles using Fano-enhanced chiral force in visible region."

Chiral gradient force allows a passive separation of an enantiomer since its direction is dependent on the handedness of its chiral entities. However, chiral polarisability is much weaker than electric polarisability. As a consequence, the non-chiral gradient force dominates over chiral force, which makes enantioselective sorting challenging. We present here, both numerically and analytically, that the chiral gradient force acting on chiral nanoparticles can overcome the non-chiral force when specimens are placed in a Fano-enhanced chiral gradient near-field using a plasmonic nanoaperture. Under circularly polarized light illumination, the interaction between the resonant modes of symmetric outer and asymmetric inner Au split-rings results in a splitting of the modal energies, which excites multipolar interference Fano resonances (FRs). This enables a local aperture between the two split-rings to possess very large optical chirality gradients while maintaining low gradients of electromagnetic energy density around the FRs from the visible region. By way of the lateral resultant force composed of both chiral and non-chiral gradient forces, we can accomplish a helicity-dependent transverse deflection of the chiral nanoparticles positioned above the aperture, which may offer a good platform for all-optical enantiopure compounds.

Affiliation

Journal Details

This article was published in the following journal.

Name: Nanoscale
ISSN: 2040-3372
Pages:

Links

DeepDyve research library

PubMed Articles [9622 Associated PubMed Articles listed on BioPortfolio]

Three-Dimensional Enantiomeric Recognition of Optically Trapped Single Chiral Nanoparticles.

We optically trap freestanding single metallic chiral nanoparticles using a standing-wave optical tweezer. We also incorporate within the trap a polarimetric setup that allows us to perform in situ c...

Homochiral Double Helicates Based on Cyclooctatetrathiophene: Chiral Self-sorting with the Intramolecular S···N Interaction.

We have designed and synthesized homochiral double helicates that are constructed via Ag-induced supramolecular self-sorting of saddle-shaped cyclooctatetrathiophene-based pyridine ligands. The intram...

The development of biphasic chiral recognition in chiral separation.

In chiral separation, enantioseparation factor is an important parameter which influences the resolution of enantiomers. In this current overview, a biphasic chiral recognition method is introduced to...

A Continuously Regenerable Chiral Ammonia Borane for Asymmetric Transfer Hydrogenations.

A novel chiral ammonia borane was designed and developed via the dehydrogenation of ammonia borane with chiral phosphoric acid, which was highly effective for the asymmetric transfer hydrogenation of ...

Tailorable chiral optical response through coupling among plasmonic meta-atoms with distinct shapes.

Chiral plasmonic nanostructures with giant and tunable chiral optical responses hold great potential in chiral sensing applications for chemistry, biology, and pharmacy, etc. For the origin of the chi...

Clinical Trials [2050 Associated Clinical Trials listed on BioPortfolio]

Topical Application of Silver Nanoparticles and Oral Pathogens in Ill Patients

The purpose of this study is to determine whether oral topic silver nanoparticles are effective to reduce potential pathogen microbial loads in mechanical ventilation patients.

Presence of Nanoparticles in the Amniotic Fluid

The nanoparticles (NP) are defined as particles whose size is no greater than 100 nanometers. However, their impact on health remains little evaluated. Placental transfer of NP has been p...

Classification and Characterization of Physical Strains During Sorting Series: Physiological Aspects

2 young candidates have tragically died during army pre-recruitment sorting series in 2006. As part of the classification and characterization of the physical aspects of the training, this...

The Criteria for Lymph Node Sorting for Pathological Examination in Gastric Cancer

The aim of this study is intending to provide the optimal procedures of lymph node sorting for pathological examination after curative surgery for gastric cancer, which can discriminate th...

AGuIX Gadolinium-based Nanoparticles in Combination With Chemoradiation and Brachytherapy

This is a phase 1 clinical trial evaluating the safety, tolerability of escalating doses of AGuIX-NP in combination with radiation and cisplatin in patients with locally advanced cervical ...

Medical and Biotech [MESH] Definitions

Polymers of N-SUBSTITUTED GLYCINES containing chiral centers at the a-position of their side chains. These oligomers lack HYDROGEN BONDING donors, preventing formation of the usual intrachain hydrogen bonds but can form helices driven by the steric influence of chiral side chains.

Enzymes that catalyze the epimerization of chiral centers within carbohydrates or their derivatives. EC 5.1.3.

Enzymes that catalyze either the racemization or epimerization of chiral centers within amino acids or derivatives. EC 5.1.1.

Nanometer-sized particles that are nanoscale in three dimensions. They include nanocrystaline materials; NANOCAPSULES; METAL NANOPARTICLES; DENDRIMERS, and QUANTUM DOTS. The uses of nanoparticles include DRUG DELIVERY SYSTEMS and cancer targeting and imaging.

A set of protein subcomplexes involved in PROTEIN SORTING of UBIQUITINATED PROTEINS into intraluminal vesicles of MULTIVESICULAR BODIES and in membrane scission during formation of intraluminal vesicles, during the final step of CYTOKINESIS, and during the budding of enveloped viruses. The ESCRT machinery is comprised of the protein products of Class E vacuolar protein sorting genes.

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Searches Linking to this Article