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Dynamic Helical Structures: Detection and Amplification of Chirality
A unique feature of dynamic helical, chromophoric macromolecules that enables the detection of a small imbalance in chiral guest molecules through...
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Cholesterol side groups in Helical Poly(3-alkylesterfurans)
Poly(3-alkylesterfurans) fold into helical conformations due to a preference for adjacent furan repeat units in the polymer backbone to adopt a syn ...
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Recent Advances in Helical Polyisocyanide-based Block Copolymers: Preparation, Self-assembly and Circularly Polarized Luminescence
P olyisocyanides and their block copolymers have widespread applications in many fields due to their unique helix and self-assembly properties. At...
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Rationally seeded computational protein design of ɑ-helical barrels
Computational protein design is advancing rapidly. Here we describe efficient routes starting from validated parallel and antiparallel peptide...
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Near-atomic-resolution structure of J-aggregated helical light-harvesting nanotubes
Cryo-electron microscopy has delivered a resolution revolution for biological self-assemblies, yet only a handful of structures have been solved for...
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The occurrence of seven-fold helical molecular conformation in cellulose-phosphoric acid complex
Phosphoric acid is widely used for the swelling and hydrolysis of cellulose. The detailed description of molecular interactions between cellulose and...
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Helical Rotor Module of Rotary Hydraulic Drive Turbine
This paper presents the developed design of a rotor module of the turbine of a hydraulic drive, the distinctive feature of which is a helical relief...
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Helical Milling of Small Holes in Fully-Sintered Zirconia Ceramic with PCD Tools
AbstractFully-sintered zirconia ceramic (ZrO 2 ) is a typical hard-to-machine material, and fabricating small holes in this material with high...
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Synthesis of Helical Poly(phenylacetylene)s Carrying Dendritic Pendants with Varied Branching Densities Through Polymerization in Different Solvents
Helical poly(phenylacetylene)s (PPAs) have received extensive attention because of their features in dynamic chirality and promising applications....
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Oxygen transfer and gas holdup in airlift bioreactors assembled with helical flow promoters
Bioreactors can perform biochemical conversions mediated by biocatalysts, such as enzymes, animal cells, plants, and microorganisms. Among several...
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Thermal denaturation and renaturation of a double-helical polysaccharide xanthan in acidic and basic solutions
The double helix of a polysaccharide, xanthan was unwound by heating (denaturation) and rewound by cooling (renaturation) in acidic (0.01 M HCl) and...
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Biaxial reinforcements for polyethylene medical-tubes via helical convergent flow
Commercialized medical-tubes prepared by axial extrusion are featured with the performance mismatching along axial and hoop directions and thus are...
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Effect of central PxxP motif in amphipathic alpha-helical peptides on antimicrobial activity and mode of action
Amphipathic α-helical peptides (AHPs) have shown potential as a therapeutic approach against multi-drug-resistant bacterial infections due to their...
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Thermal performance of helical ground air heat exchanger under Saharan climate conditions: an experimental study
In the present research paper, the thermal performance of helical ground air heat exchanger (HGAHE) has been experimentally analyzed under Saharan...
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Heat transfer enhancement in a double-pipe helical heat exchanger using spring wire insert and nanofluid
Double-pipe helical heat exchangers (DPHHXs) are widely used for cooling and heating applications. In this study, a combination of two methods is...
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Accelerated heterogenous ring-opening polymerization towards well-defined helical poly(N-allyl alanine) with clickable side chains
Well-defined poly( N -allyl alanine) has been synthesized by heterogenous ring-opening polymerization (HROP) of less reactive N -allyl-alanine N -carboxya...
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Color-tunable circularly polarized electroluminescence from a helical chiral multiple resonance emitter with B-N bonds
Chiral B,N-doped polycyclic aromatic hydrocarbons with circularly polarized luminescence (CPL) and small full-width at half-maxima (FWHM) are...
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Novel synthesis of porous one-handed helical poly(substituted phenylacetylene) bearing betulin derivatives pendant groups
A novel substituted phenylacetylene with a pendant betulin derivative group was designed and synthesized successfully, and the chemical structure of...
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Helical Nonfouling Polypeptides for Biomedical Applications
Synthetic polypeptides, also known as poly( α -amino acid)s (P α AAs), are biomimetic and biodegradable polymers holding great potential for a variety of...
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Novel Chiral Helical Polyisocyanides Containing Cyclohexanediamine Pendants for Asymmetric Michael Addition Reaction and Aldol Reaction
A novel helical poly(phenylisocyanide)-supported catalyst bearing (1 R ,2 R )-1,2-cyclohexanediamine pendant (poly-2 m ) was synthesized. The chiral...
