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Structure Bonding and Bioactivity of Nanoscale Molecules
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Structure Bonding and Bioactivity of Nanoscale Molecules

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Macromolecules".

Deadline for manuscript submissions: closed (31 May 2024) | Viewed by 1178

Special Issue Editor

Dr. Mihai V. Putz

E-Mail Website
Guest Editor
1. Laboratory of Structural and Computational Physical-Chemistry for Nanosciences and QSAR, Biology-Chemistry Department, West University of Timisoara, Str. Pestalozzi 16, 300115 Timisoara, Romania
2. Laboratory of Renewable Energies-Photovoltaics, R&D National Institute for Electrochemistry and Condensed Matter–INCEMC–Timisoara, Str. Dr. Aurel Podeanu 144, 300569 Timișoara, Romania
Interests: quantum physical chemistry; nanochemistry; reactivity indices and principles; electronegativity; density functional theory; path integrals; enzyme kinetics; QSAR; epistemology and philosophy of science
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The structure of nano-scale molecules is highly dependent on the size and shape of the individual particles. As a result, they can exhibit a range of polymorphic forms with distinct geometries and bond angles. In addition, nano-scale molecules can also display quantum confinement effects, which can result in novel electronic and optical properties.

The bioactivity of nano-scale molecules is an emerging field with vast potential for impacting medical, pharmaceutical, and biological applications. Nano-scale molecules have shown great promise in areas such as drug delivery, tissue engineering, and disease diagnosis. The ability to control their size, shape, and surface chemistry allows for precise targeting and delivery of drugs to specific tissues within the body. In addition, nano-scale molecules can be designed to interact with and respond to specific biological molecules or environmental stimuli, making them highly tunable and versatile therapeutic agents.

Therefore, I cordially invite you to contribute to the fundamental and/or applied aspects of these necessary post-modern developments in nano-chemistry and nanomaterials sciences. Your work should be based on groundbreaking physics-chemistry and chemical physics principles related to atoms, molecules, and their multi-scaled spaces of interactions and reactivity.

Dr. Mihai V. Putz
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

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Keywords

  • nano-scale molecule
  • structure bonding
  • bioactivity
  • nanomaterials
  • nano-chemistry

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Published Papers (1 paper)

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Research

13 pages, 5548 KiB  
Article
The Formation of D-Allulose 3-Epimerase Hybrid Nanoflowers and Co-Immobilization on Resins for Improved Enzyme Activity, Stability, and Processability
by Wentao Ding, Chensa Liu, Chi Huang, Xin Zhang, Xinyi Chi, Tong Wang, Qingbin Guo and Changlu Wang
Int. J. Mol. Sci. 2024, 25(12), 6361; https://doi.org/10.3390/ijms25126361 - 8 Jun 2024
Viewed by 836
Abstract
As a low-calorie sugar, D-allulose is produced from D-fructose catalyzed by D-allulose 3-epimerase (DAE). Here, to improve the catalytic activity, stability, and processability of DAE, we reported a novel method by forming organic–inorganic hybrid nanoflowers (NF-DAEs) and co-immobilizing them on resins to form [...] Read more.
As a low-calorie sugar, D-allulose is produced from D-fructose catalyzed by D-allulose 3-epimerase (DAE). Here, to improve the catalytic activity, stability, and processability of DAE, we reported a novel method by forming organic–inorganic hybrid nanoflowers (NF-DAEs) and co-immobilizing them on resins to form composites (Re-NF-DAEs). NF-DAEs were prepared by combining DAE with metal ions (Co2+, Cu2+, Zn2+, Ca2+, Ni2+, Fe2+, and Fe3+) in PBS buffer, and were analyzed by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy, and X-ray diffraction. All of the NF-DAEs showed higher catalytic activities than free DAE, and the NF-DAE with Ni2+ (NF-DAE-Ni) reached the highest relative activity of 218%. The NF-DAEs improved the thermal stability of DAE, and the longest half-life reached 228 min for NF-DAE-Co compared with 105 min for the free DAE at 55 °C. To further improve the recycling performance of the NF-DAEs in practical applications, we combined resins and NF-DAEs to form Re-NF-DAEs. Resins and NF-DAEs co-effected the performance of the composites, and ReA (LXTE-606 neutral hydrophobic epoxy-based polypropylene macroreticular resins)-based composites (ReA-NF-DAEs) exhibited outstanding relative activities, thermal stabilities, storage stabilities, and processabilities. The ReA-NF-DAEs were able to be reused to catalyze the conversion from D-fructose to D-allulose, and kept more than 60% of their activities after eight cycles. Full article
(This article belongs to the Special Issue Structure Bonding and Bioactivity of Nanoscale Molecules)
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