Classical nexus between chiral inducers and achiral silver nanoparticles and integration of the digital XOR logic gate

Mandal, Manajit; Malik, Ankur; Mondal, Prakash Chandra

doi:10.1039/d2ma00942k

Cited by 3 publications

(1 citation statement)

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“…Manufacturing vascular grafts of clinically relevant dimensions remains a key biofabrication challenge in the biomedical field, as it demands small diameters and relatively larger lengths. 39 Electrospun bilayers, 40 molded polymer tubes, 41 and 4D printed hydrogels [42][43][44][45] present significant limitations as vascular grafts due to incomplete and unstable shape deformation, complex chemical reactions and short-term patency, and poor mechanical strength, respectively. These limitations are further accentuated if the tubes need to be pre-seeded with cells prior to implantation, as none of the conventional processing techniques can realize cell-laden tubes with high shape fidelity and stability.…”

Section: In Vitro Demonstration Of Cellularized Vascular Graftsmentioning

confidence: 99%

Design-encoded dual shape-morphing and shape-memory in 4D printed polymer parts toward cellularized vascular grafts

Choudhury,

Joshi,

Baghel

et al. 2024

J. Mater. Chem. B

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Section: In Vitro Demonstration Of Cellularized Vascular Graftsmentioning

confidence: 99%

Design-encoded dual shape-morphing and shape-memory in 4D printed polymer parts toward cellularized vascular grafts

Choudhury,

Joshi,

Baghel

et al. 2024

J. Mater. Chem. B

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Homochiral zeolites as chiral modifier for voltammetry sensors with high enantioselectivity

Vakulin,

Zilberg,

Galimov

et al. 2024

Chirality

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Composite enantioselective voltammetry sensors provide a well‐known solution for the analysis and discrimination of enantiomerical drugs by voltammetry. The design of such sensor presumes the use of chiral substances to impart chirality to the electrode surface. We present the results of applying a theoretical approach based on simulating the adsorption of analyte enantiomers for preparing high enantioselectivity of pioneering enantioselective sensors using homochiral zeolites as chiral modifiers.We investigated the ability of some homochiral zeolites like CZP, ITV, OSO, STW, MFI, and SOF to act as solid chiral modifiers. Using tryptophan and tyrosine as model objects, we found that the maximum difference between the adsorption energies (ΔEads) of enantiomers on zeolites occurs if enantiomers are placed into the pores of zeolites. The SOF zeolite demonstrates the best enantioselectivity to both amino acids. Moreover, we compared the theoretical results with the experimental enantioselectivity value for tryptophan on a sensor designed as a paste electrode with MFI as the chiral modifier. We found that the calculated value ΔEads(R‐S) = −11.0 kJ/mol for MFI, though it is not the best value in the zeolite set considered, it is still enough for the sensor with MFI as the chiral modifier to demonstrate a higher than usual enantioselectivity (ip1/ip2 = 1.58) in an experiment with R‐ and S‐ tryptophan as the analyte.

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Synthesis of Chiral Ag, Pd, and Pt Helicoids inside Chiral Silica Mold

Ha,

Kim,

Han

et al. 2024

J. Am. Chem. Soc.

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Chiral inorganic nanomaterials hold significant promise for various applications, including enantioselective catalysis, polarization-controlling optical devices, metamaterials, and enantioselective molecular sensors. In our previous work, we presented a method for synthesizing chiral Au 432 helicoid III (Au helicoids) from peptides and amino acids, where helical gaps are intricately arranged with 432 symmetry within single cubic nanoparticles. In this study, we have achieved the fabrication of chiral silica molds through Au etching subsequent to the silica coating of Au helicoids. We demonstrate that these molds serve as geometrically confined reactors capable of producing chiral Ag, Pd, and Pt 432 helicoid III (Ag, Pd, and Pt helicoids). The morphology of the synthesized Ag, Pd, and Pt helicoids closely resembles that of the Au helicoids, exhibiting a superior g-factor compared to other reported chiral structures of each material. Notably, the Ag and Pd helicoids are found to be single-crystalline, with high-index planes exposed within the gaps. We believe that this silica mold-based approach can be generalized to synthesize chiral nanomaterials of various metal and even oxide materials.

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Classical nexus between chiral inducers and achiral silver nanoparticles and integration of the digital XOR logic gate

Abstract: Chirality-induced metallic and metal-oxide nanoparticles (NPs) hold promising potentials in chiroptical, asymmetric catalysis, chiral discrimination, and drug delivery. Here, we report a simple but scalable method for the preparation of...

Cited by 3 publications

References 55 publications

Design-encoded dual shape-morphing and shape-memory in 4D printed polymer parts toward cellularized vascular grafts

Design-encoded dual shape-morphing and shape-memory in 4D printed polymer parts toward cellularized vascular grafts

Homochiral zeolites as chiral modifier for voltammetry sensors with high enantioselectivity

Synthesis of Chiral Ag, Pd, and Pt Helicoids inside Chiral Silica Mold

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