Special Issue "Transport Processes of Polymers through Nanometric Pore Membranes"

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Physics and Theory".

Deadline for manuscript submissions: 5 May 2023 | Viewed by 2354

Special Issue Editors

Prof. Dr. Carlo Cattani
E-Mail Website1 Website2
Guest Editor
Engineering School (DEIM), University of Tuscia, Largo dell'Università, 01100 Viterbo, Italy
Interests: numerical and computational methods; mathematical physics; nonlinear systems; Artificial Intelligence
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The transport of polymers through membranes is a complicated case of study, physically, chemically, and mathematically speaking. When membrane pores have nanometric dimensions, this process becomes difficult to manage, both phenomenologically and as a philosophy of the applied computational model. We now ask whether the passage of polymers through nanopores occurs naturally or is stimulated, with the forces acting on them being considered, allowing the advancement of polymers.

Of particular interest is polyelectrolytes’ translocation dynamics owing to the important practices related to DNA sequencing.

It is also important to further specify whether this process takes place according to the classical equations of motion or whether it should be treated as a stochastic process or, moreover, assimilated with one type of nonlinear dynamics, according to the notions of deterministic chaos or fractal analysis.

We invite research focusing on the problems of synthesis, modification, characterization, and modeling of nanometer-size solid-state channels and pores as membrane constituents of either inert or biological nature. 

Another interesting topic is the strong coupling of the structure and transport in biological channels and polyelectrolyte-modified synthetic nanopores. In short, the structure dictates transport and transport affects structure.

Prof. Dr. Viorel-Puiu Paun
Prof. Dr. Carlo Cattani
Guest Editors

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. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Nanopores
  • polymer transport
  • biological membrane
  • nanometer-size modeling
  • nanoconfinement
  • nanodiffusion
  • translocation time

Published Papers (3 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

Jump to: Review

Article
Impact of the Polymer Backbone Structure on the Separation Properties of New Stationary Phases Based on Tricyclononenes
Polymers 2022, 14(23), 5120; https://doi.org/10.3390/polym14235120 - 24 Nov 2022
Viewed by 390
Abstract
The main purpose of this paper is to compare the chromatographic properties of capillary columns prepared with polymers with different backbone structures and to demonstrate the possibility of polymer differentiation via inverse gas chromatography. With the use of addition and metathesis types of [...] Read more.
The main purpose of this paper is to compare the chromatographic properties of capillary columns prepared with polymers with different backbone structures and to demonstrate the possibility of polymer differentiation via inverse gas chromatography. With the use of addition and metathesis types of polymerization of tricyclononenes, two new stationary phases were prepared. The metathesis polymer contained double bonds in the polymeric backbone while the backbone of the addition polymer was fully saturated and relatively mobile. A comparison of the separation and adsorption properties of new phases with conventional gas chromatography (GC) stationary phases clearly indicated their non-polar characteristics. However, the difference in the polymer structure appeared to have very little effect on the stationary phase separation properties, so other parameters were used for polymer characterization. The thermodynamic parameters of the sorption of alkanes and aromatic compounds in both polymeric stationary phases were also very similar; however, the entropy of sorption for hydrocarbons with seven or more carbon atoms was different for the two polymers. An evaluation of the specific surface energy of the stationary phases also allowed us to discriminate the two stationary phases. Full article
(This article belongs to the Special Issue Transport Processes of Polymers through Nanometric Pore Membranes)
Show Figures

Figure 1

Article
Time Estimation of Polymer Translocation through Nano-Membrane
Polymers 2022, 14(10), 2090; https://doi.org/10.3390/polym14102090 - 20 May 2022
Viewed by 602
Abstract
In this paper, the charged polymer escapement phenomenon, via a little hole of nano-metric dimensions arranged in a constitutive biological membrane, is studied. We will present the case of the transport process of an ideal polymer in a 3-dimensional extended region separated by [...] Read more.
In this paper, the charged polymer escapement phenomenon, via a little hole of nano-metric dimensions arranged in a constitutive biological membrane, is studied. We will present the case of the transport process of an ideal polymer in a 3-dimensional extended region separated by a fine boundary named membrane in a free energy barrier attendance. Additionally, the general translocation time formula, respectively, the transition time from the cis area to the trans area, is presented. The model for estimation of the likelihood, designated by P(x, t), as a macromolecular chain of lengthiness equal to x, to be able to pass by the nanopore in escape period t, was optimized. The longest-lasting likely escape time found with this model is indicated to be tp = 330 μs. Thus, the results obtained with the described formula are in good agreement with those announced in the specialized literature. Full article
(This article belongs to the Special Issue Transport Processes of Polymers through Nanometric Pore Membranes)
Show Figures

Graphical abstract

Review

Jump to: Research

Review
Polymer Translocation through Nanometer Pores
Polymers 2022, 14(6), 1166; https://doi.org/10.3390/polym14061166 - 15 Mar 2022
Viewed by 934
Abstract
In this paper the loaded polymer transport and its escape via a nanometer size aperture, virtually by nanomembrane, the polymer being moved by an exterior electrostatic field, has been studied. Assuming a linear dependency of the friction coefficient on the number of segments [...] Read more.
In this paper the loaded polymer transport and its escape via a nanometer size aperture, virtually by nanomembrane, the polymer being moved by an exterior electrostatic field, has been studied. Assuming a linear dependency of the friction coefficient on the number of segments m and a parabolic behavior for the open-free (Gibbs) energy, in attendance of a present electrical potential across nanopore, an explicit flux formula for the polymers passed over a dimensional restricted pore, was derived. In addition, the linear polymers transport through a nanometer-sized pore under the action of a constant force is presented. The important mechanical effects of superimposed steady force and the monomers number of macromolecule chain on the polymer translocation process by nanomembranes, in a 2D diffusion model, have been demonstrated. The escape time by a three-dimensional graph as a function of the electric field intensity and monomers number of polymer was represented. Full article
(This article belongs to the Special Issue Transport Processes of Polymers through Nanometric Pore Membranes)
Show Figures

Figure 1

Back to TopTop