Skip Content
You are currently on the new version of our website. Access the old version .

271 Results Found

  • Article
  • Open Access
8 Citations
4,535 Views
14 Pages

6 August 2021

Reasonably simple, efficient, and possessing aspects of generality, the methodology for the synthesis of new, water-soluble, dendrimeric polyesters with great potential applications as antiviral drugs in their own right is described. The essential as...

  • Article
  • Open Access
47 Citations
15,309 Views
28 Pages

6 November 2008

Polyanionic macromolecules are extremely abundant both in the extracellular environment and inside the cell, where they are readily accessible to many proteins for interactions that play a variety of biological roles. Among polyanions, heparin, hepar...

  • Article
  • Open Access
3 Citations
5,678 Views
17 Pages

Enhanced Immunomodulatory Effects of Thymosin-Alpha-1 in Combination with Polyanionic Carbosilane Dendrimers against HCMV Infection

  • María de la Sierra Espinar-Buitrago,
  • Esmeralda Magro-López,
  • Elena Vázquez-Alejo and
  • María Ángeles Muñoz-Fernández

6 February 2024

Resistance and toxicity associated with current treatments for human cytomegalovirus (HCMV) infection highlight the need for alternatives and immunotherapy has emerged as a promising strategy. This study examined the in vitro immunological effects of...

  • Article
  • Open Access
9 Citations
2,799 Views
11 Pages

17 May 2021

Polyanions are an important class of water-soluble polymers because polyanions are utilized in a wide range of industrial fields. It is thus a great challenge to develop polyanions with novel structures to make their applications broader. In this stu...

  • Article
  • Open Access
12 Citations
3,180 Views
13 Pages

Polycation–Polyanion Architecture of the Intermetallic Compound Mg3−xGa1+xIr

  • Olga Sichevych,
  • Yurii Prots,
  • Walter Schnelle,
  • Frank R. Wagner and
  • Yuri Grin

20 January 2022

Mg3−xGa1+xIr (x = 0.05) was synthesized by direct reaction of the elements in welded tantalum containers at 1200 °C and subsequent annealing at 500 °C for 30 days. Its crystal structure represents a new prototype and was determined by s...

  • Review
  • Open Access
23 Citations
5,681 Views
21 Pages

Advances in Vanadium-Redoxed Polyanions for High-Voltage Sodium-Ion Batteries

  • Honglun Wu,
  • Yiqing Chen,
  • Tianzhuo Wen,
  • Long Chen,
  • Xiangjun Pu and
  • Zhongxue Chen

12 January 2023

Large-scale energy storage using sodium ion batteries (SIBs) as a hub for the conversion of renewable energy has become a topic of great importance. However, the application of SIBs is hindered by low energy density arising from inferior capacity and...

  • Article
  • Open Access
6 Citations
4,532 Views
13 Pages

Effect of Small Polyanions on In Vitro Assembly of Selected Members of Alpha-, Beta- and Gammaretroviruses

  • Alžběta Dostálková,
  • Barbora Vokatá,
  • Filip Kaufman,
  • Pavel Ulbrich,
  • Tomáš Ruml and
  • Michaela Rumlová

18 January 2021

The assembly of a hexameric lattice of retroviral immature particles requires the involvement of cell factors such as proteins and small molecules. A small, negatively charged polyanionic molecule, myo-inositol hexaphosphate (IP6), was identified to...

  • Review
  • Open Access
15 Citations
7,385 Views
33 Pages

Borate-Based Compounds as Mixed Polyanion Cathode Materials for Advanced Batteries

  • Giancarlo Dominador D. Sanglay,
  • Jayson S. Garcia,
  • Mecaelah S. Palaganas,
  • Maurice Sorolla,
  • Sean See,
  • Lawrence A. Limjuco and
  • Joey D. Ocon

19 November 2022

Rational design of new and cost-effective advanced batteries for the intended scale of application is concurrent with cathode materials development. Foundational knowledge of cathode materials’ processing–structure–properties–...

  • Review
  • Open Access
3 Citations
3,353 Views
16 Pages

24 February 2020

Biology is dominated by polyanions (cell membranes, nucleic acids, and polysaccharides just to name a few), and achieving selective recognition between biological polyanions and synthetic systems currently constitutes a major challenge in many biomed...

  • Article
  • Open Access
36 Citations
4,928 Views
16 Pages

25 October 2019

Recently, one of the promising strategies to fight sensitive and resistant bacteria, and decrease the morbidity and mortality rates due to non-nosocomial infections, is to use antibiotic-loaded nanoparticles. In this study, ampicillin-loaded chitosan...

  • Article
  • Open Access
11 Citations
4,621 Views
6 Pages

25 August 2021

High-voltage generation (over 4 V versus Li+/Li) of polyanion-positive electrode materials is usually achieved by Ni3+/Ni2+, Co3+/Co2+, or V4+/V3+ redox couples, all of which, however, encounter cost and toxicity issues. In this short review, our rec...

  • Article
  • Open Access
3 Citations
1,438 Views
15 Pages

A Stable and Fast-Response Multifunctional Humidity Sensor Based on a Polyanionic Liquid Containing Bromide Ions

  • Shiqi Zhang,
  • Chenghong Wei,
  • Li Li,
  • Jincan Cui,
  • Xiaolei Yuan,
  • Dandan Hao and
  • Heng Wang

Humidity sensors are widely utilized in meteorological research, industrial production, precision instrument maintenance, agriculture, health care, and other fields. However, the long response time and low sensitivity of current metal oxide and hybri...

  • Article
  • Open Access
5 Citations
3,610 Views
16 Pages

Synthesis of Polyanionic C5-Modified 2′-Deoxyuridine and 2′-Deoxycytidine-5′-Triphosphates and Their Properties as Substrates for DNA Polymerases

  • Claire Dutson,
  • Esther Allen,
  • Mark J. Thompson,
  • Joseph H. Hedley,
  • Heather E. Murton and
  • David M. Williams

13 April 2021

Modified 2′-deoxyribonucleotide triphosphates (dNTPs) have widespread applications in both existing and emerging biomolecular technologies. For such applications it is an essential requirement that the modified dNTPs be substrates for DNA polymerases...

  • Review
  • Open Access
2 Citations
1,971 Views
17 Pages

A large number of experimental studies have demonstrated that globular proteins can be absorbed from the solution by both polycationic and polyanionic brushes when the net charge of protein globules is of the same or of the opposite sign with respect...

  • Feature Paper
  • Review
  • Open Access
3 Citations
1,740 Views
19 Pages

18 October 2024

Abstract: With the continuous development of science and technology, battery storage systems for clean energy have become crucial for global economic transformation. Among various rechargeable batteries, lithium-ion batteries are widely used, but fac...

  • Article
  • Open Access
6 Citations
2,460 Views
16 Pages

8 February 2023

We apply a coarse-grained self-consistent field Poisson-Boltzmann framework to study interaction between Bovine Serum Albumin (BSA) and a planar polyelectropyte brush. Both cases of negatively (polyanionic) and positively (polycationic) charged brush...

  • Review
  • Open Access
25 Citations
4,441 Views
17 Pages

Extracellular Polymeric Substances: Still Promising Antivirals

  • Raquel Bello-Morales,
  • Sabina Andreu,
  • Vicente Ruiz-Carpio,
  • Inés Ripa and
  • José Antonio López-Guerrero

19 June 2022

Sulfated polysaccharides and other polyanions have been promising candidates in antiviral research for decades. These substances gained attention as antivirals when they demonstrated a high inhibitory effect in vitro against human immunodeficiency vi...

  • Article
  • Open Access
11 Citations
4,265 Views
14 Pages

18 February 2022

Polyanionic cellulose carbamates were synthesized by rapid and efficient homogeneous aminolysis of cellulose carbonate half-esters in an ionic liquid/DMF medium. Cellulose bis-2,3-O-(3,5-dimethylphenyl carbamate), as a model compound, reacted with di...

  • Article
  • Open Access
1 Citations
2,257 Views
16 Pages

Safety of G2-S16 Polyanionic Carbosilane Dendrimer as Possible HIV-1 Vaginal Microbicide

  • Alba Martin-Moreno,
  • Rafael Ceña-Diez,
  • María Jesús Serramía,
  • José Luis Jiménez,
  • Rafael Gómez-Ramírez and
  • Mariángeles Muñoz-Fernández

25 February 2022

The UNAIDS objective for 2020 was 500,000 new HIV-1 infections per year; however, the latest annual reported data confirmed 1.7 million new HIV-1 infections in that year. Those data evidences the need for new prevention strategies and prophylactic tr...

  • Article
  • Open Access
5 Citations
2,134 Views
13 Pages

Role of G2-S16 Polyanionic Carbosilane Dendrimer in the Prevention of Respiratory Syncytial Virus Infection In Vitro and In Vivo in Mice

  • Ignacio Rodriguez-Izquierdo,
  • Rafael Ceña-Diez,
  • Maria Jesús Serramia,
  • Rosa Rodriguez-Fernández,
  • Isidoro Martínez and
  • Mariángeles Muñoz-Fernández

29 June 2021

The respiratory syncytial virus (RSV) causes respiratory infection and bronchiolitis, requiring hospitalization mainly in infants. The interaction between RSV, envelope glycoproteins G and F, and cell surface heparan sulfate proteoglycans (HSPG) is r...

  • Article
  • Open Access
9 Citations
4,104 Views
17 Pages

3 August 2020

The assembly of alphavirus nucleocapsid cores requires electrostatic interactions between the positively charged N-terminus of the capsid protein (CP) and the encapsidated polyanionic cargo. This system differs from many other viruses that can self-a...

  • Article
  • Open Access
13 Citations
3,136 Views
15 Pages

Cationic Dendrimer G2-S16 Inhibits Herpes Simplex Type 2 Infection and Protects Mice Vaginal Microbiome

  • Carlos Guerrero-Beltrán,
  • Inmaculada Garcia-Heredia,
  • Rafael Ceña-Diez,
  • Ignacio Rodriguez-Izquierdo,
  • María Jesús Serramía,
  • Francisco Martinez-Hernandez,
  • Mónica Lluesma-Gomez,
  • Manuel Martinez-Garcia and
  • María Ángeles Muñoz-Fernández

The G2-S16 polyanionic carbosilane dendrimer is a promising microbicide that inhibits HSV-2 infection in vitro and in vivo in mice models. This G2-S16 dendrimer inhibits HSV-2 infection even in the presence of semen. Murine models, such as BALB/c fem...

  • Review
  • Open Access
27 Citations
6,160 Views
25 Pages

The voltage-dependent anion channel (VDAC) is the primary regulating pathway of water-soluble metabolites and ions across the mitochondrial outer membrane. When reconstituted into lipid membranes, VDAC responds to sufficiently large transmembrane pot...

  • Article
  • Open Access
12 Citations
3,541 Views
15 Pages

Efficient Photocatalytic Degradation of Methylene Blue and Methyl Orange Using Calcium-Polyoxometalate Under Ultraviolet Irradiation

  • Suhair A. Bani-Atta,
  • A. A. A. Darwish,
  • Leena Shwashreh,
  • Fatimah A. Alotaibi,
  • Jozaa N. Al-Tweher,
  • Hatem A. Al-Aoh and
  • E. F. M. El-Zaidia

5 December 2024

With the increasing demand for eco-friendly water treatment solutions, the development of novel photocatalysts such as calcium polyanion (Ca-POM) plays a vital role in mitigating industrial wastewater pollution. In this research, calcium polyanion, H...

  • Article
  • Open Access
3 Citations
2,806 Views
10 Pages

G2-S16 Polyanionic Carbosilane Dendrimer Can Reduce HIV-1 Reservoir Formation by Inhibiting Macrophage Cell to Cell Transmission

  • Ignacio Relaño-Rodríguez,
  • María de la Sierra Espinar-Buitrago,
  • Vanessa Martín-Cañadilla,
  • Rafael Gómez-Ramírez and
  • María Ángeles Muñoz-Fernández

Human immunodeficiency virus (HIV-1) is still a major problem, not only in developing countries but is also re-emerging in several developed countries, thus the development of new compounds able to inhibit the virus, either for prophylaxis or treatme...

  • Article
  • Open Access
14 Citations
5,328 Views
9 Pages

Topical Astodrimer Sodium, a Non-Toxic Polyanionic Dendrimer, Demonstrates Antiviral Activity in an Experimental Ocular Adenovirus Infection Model

  • Eric G. Romanowski,
  • Kathleen A. Yates,
  • Jeremy R. A. Paull,
  • Graham P. Heery and
  • Robert M. Q. Shanks

There is no approved antiviral therapy for adenovirus (HAdV) ocular infections. Astodrimer sodium (SPL7013) is a polyanionic dendrimer with antiviral activity. The current study evaluated the ocular tolerability and anti-adenoviral efficacy of topica...

  • Article
  • Open Access
15 Citations
4,081 Views
14 Pages

Colloidal Stability of Silica-Modified Magnetite Nanoparticles: Comparison of Various Dispersion Techniques

  • Gulzhian Dzhardimalieva,
  • Lyubov Bondarenko,
  • Erzsébet Illés,
  • Etelka Tombácz,
  • Nataliya Tropskaya,
  • Igor Magomedov,
  • Alexander Orekhov and
  • Kamila Kydralieva

4 December 2021

The production of stable and homogeneous batches during nanoparticle fabrication is challenging. Surface charging, as a stability determinant, was estimated for 3-aminopropyltriethoxysilane (APTES) coated pre-formed magnetite nanoparticles (MNPs). An...

  • Review
  • Open Access
17 Citations
3,229 Views
14 Pages

Polyelectrolytes for Enzyme Immobilization and the Regulation of Their Properties

  • Vladimir I. Muronetz,
  • Denis V. Pozdyshev and
  • Pavel I. Semenyuk

7 October 2022

In this review, we considered aspects related to the application of polyelectrolytes, primarily synthetic polyanions and polycations, to immobilize enzymes and regulate their properties. We mainly focused on the description of works in which polyelec...

  • Review
  • Open Access
15 Citations
3,844 Views
20 Pages

10 December 2020

Development of new, safe, and effective microbicides to prevent human immunodeficiency virus HIV sexual transmission is needed. Unfortunately, most microbicides proved ineffective to prevent the risk of HIV-infection in clinical trials. We are workin...

  • Article
  • Open Access
20 Citations
3,734 Views
12 Pages

19 March 2022

Polymer coatings based on polycations represent a perspective class of protective antimicrobial coatings. Polydiallyldimethylammonium chloride (PDADMAC) and its water-soluble complexes with sodium polystyrenesulfonate (PSS) were studied by means of d...

  • Review
  • Open Access
25 Citations
4,447 Views
13 Pages

Alzheimer’s Disease and Tau Self-Assembly: In the Search of the Missing Link

  • Andrea González,
  • Sandeep Kumar Singh,
  • Macarena Churruca and
  • Ricardo B. Maccioni

Alzheimer’s disease (AD) is a multifactorial neurodegenerative disease characterized by progressive cognitive impairment, apathy, and neuropsychiatric disorders. Two main pathological hallmarks have been described: neurofibrillary tangles, cons...

  • Article
  • Open Access
3 Citations
3,179 Views
13 Pages

Sodium-ion batteries (SIBs) share similar working principles with lithium-ion batteries while demonstrating cost advantages. However, the current understanding of their safety characteristics remains insufficient, and the thermal runaway mechanisms o...

  • Article
  • Open Access
7 Citations
4,392 Views
13 Pages

Covalent Si–H Bonds in the Zintl Phase Hydride CaSiH1+x (x ≤ 1/3)

  • Henry Auer,
  • Fangshun Yang,
  • Helen Y. Playford,
  • Thomas C. Hansen,
  • Alexandra Franz and
  • Holger Kohlmann

The crystal structure of the Zintl phase hydride CaSiH≈4/3 was discussed controversially, especially with respect to the nature of the silicon-hydrogen interaction. We have applied X-ray and neutron powder diffraction as well as total neutron s...

  • Article
  • Open Access
10 Citations
3,023 Views
25 Pages

Role of Polyanions and Surfactant Head Group in the Formation of Polymer–Colloid Nanocontainers

  • Elmira A. Vasilieva,
  • Darya A. Kuznetsova,
  • Farida G. Valeeva,
  • Denis M. Kuznetsov and
  • Lucia Ya. Zakharova

16 March 2023

Objectives. This study was aimed at the investigation of the supramolecular systems based on cationic surfactants bearing cyclic head groups (imidazolium and pyrrolidinium) and polyanions (polyacrylic acid (PAA) and human serum albumin (HSA)), and fa...

  • Article
  • Open Access
10 Citations
6,739 Views
17 Pages

Stabilization of Pickering Emulsions by Hairy Nanoparticles Bearing Polyanions

  • Ying Zhang,
  • Kaimin Chen,
  • Lan Cao,
  • Kai Li,
  • Qiaoling Wang,
  • Enyu Fu and
  • Xuhong Guo

7 May 2019

Pickering emulsions are increasingly applied in drug delivery, oil–water separation, composite materials preparation, and other fields. However, systematic studies on the stabilization of Pickering emulsions to satisfy the growing application d...

  • Article
  • Open Access
1,657 Views
24 Pages

Plasmid DNA Delivery to Cancer Cells with Poly(L-lysine)-Based Copolymers Bearing Thermally Sensitive Segments: Balancing Polyplex Tightness, Transfection Efficiency, and Biocompatibility

  • Mustafa Kotmakci,
  • Natalia Toncheva-Moncheva,
  • Sahar Tarkavannezhad,
  • Bilge Debelec Butuner,
  • Ivaylo Dimitrov and
  • Stanislav Rangelov

Background/Objectives. Efficient nucleic acid delivery into target cells remains a critical challenge in gene therapy. Due to its advantages in biocompatibility and safety, recent research has increasingly focused on non-viral gene delivery. Methods....

  • Article
  • Open Access
33 Citations
4,902 Views
14 Pages

8 January 2020

A promising strategy to improve the effectivity of anticancer treatment and decrease its side effects is to modulate drug release by using nanoparticulates (NPs) as carriers. In this study, methotrexate-loaded chitosan–polyanion nanoparticles were pr...

  • Article
  • Open Access
9 Citations
2,551 Views
6 Pages

The Influence of Polyanions and Polycations on Bacteriophage Activity

  • Egor V. Musin,
  • Aleksandr L. Kim,
  • Alexey V. Dubrovskii,
  • Ekaterina B. Kudryashova,
  • Elena V. Ariskina and
  • Sergey A. Tikhonenko

16 March 2021

Phage therapy is a great alternative to antibiotic drugs, but it can’t effectively overcome the over-acidic medium of the stomach. We offer the use of polyelectrolyte microcapsules as a protective means of bacteriophage. It is necessary to understand...

  • Feature Paper
  • Article
  • Open Access
11 Citations
2,469 Views
14 Pages

Counter-cations are essential components of polyoxometalates (POMs), which have a distinct influence on the solubility, stabilization, self-assembly, and functionality of POMs. To investigate the roles of cations in the packing of POMs, as a systemat...

  • Article
  • Open Access
3 Citations
1,883 Views
14 Pages

Ti-Doped, Mn-Based Polyanionic Compounds of Na4Fe1.2Mn1.8(PO4)2P2O7 for Sodium-Ion Battery Cathode

  • Hualin Li,
  • Gang Pang,
  • Weilong Zhang,
  • Qingan Zhang,
  • Linrui Hou and
  • Changzhou Yuan

11 April 2025

Na4Fe3(PO4)2P2O7 (NFPP) is recognized as a prospective electrode for sodium-ion batteries (SIBs) because of its structure stability, economic viability and environmental friendliness. Nevertheless, its commercialization is constrained by low operatin...

  • Review
  • Open Access
27 Citations
7,677 Views
16 Pages

28 March 2023

Electrocatalytic water splitting for hydrogen (H2) production has attracted more and more attention in the context of energy shortages. The use of scarce pure water resources, such as electrolyte, not only increases the cost but also makes applicatio...

  • Review
  • Open Access
111 Citations
15,650 Views
17 Pages

Since the introduction of recombinant protein expression in the second half of the 1970s, the growth of the biopharmaceutical field has been rapid and protein therapeutics has come to the foreground. Biophysical and structural characterisation of rec...

  • Article
  • Open Access
8 Citations
6,150 Views
13 Pages

Synthesis and Characterization of a Heterometallic Extended Architecture Based on a Manganese(II)-Substituted Sandwich-Type Polyoxotungstate

  • Masooma Ibrahim,
  • Eufemio Moreno-Pineda,
  • Thomas Bergfeldt,
  • Christopher E. Anson and
  • Annie K. Powell

17 January 2018

The reaction of [α-P2W15O56]12− with MnII and DyIII in an aqueous basic solution led to the isolation of an all inorganic heterometallic aggregate Na10(OH2)42[{Dy(H2O)6}2Mn4P4W30O112(H2O)2]·17H2O (Dy2Mn4-P2W15). Single-crystal X-ray diffraction revea...

  • Review
  • Open Access
42 Citations
9,140 Views
18 Pages

Controlled Synthesis of Polyions of Heavy Main-Group Elements in Ionic Liquids

  • Matthias F. Groh,
  • Alexander Wolff,
  • Matthias A. Grasser and
  • Michael Ruck

1 September 2016

Ionic liquids (ILs) have been proven to be valuable reaction media for the synthesis of inorganic materials among an abundance of other applications in different fields of chemistry. Up to now, the syntheses have remained mostly “black boxes”; and re...

  • Review
  • Open Access
7 Citations
4,256 Views
28 Pages

A Comprehensive Review on Iron-Based Sulfate Cathodes for Sodium-Ion Batteries

  • Yalong Zheng,
  • Zhen Zhang,
  • Xinyu Jiang,
  • Yan Zhao,
  • Yichao Luo,
  • Yaru Wang,
  • Zhoulu Wang,
  • Yi Zhang,
  • Xiang Liu and
  • Baizeng Fang

28 November 2024

Sodium-ion batteries (SIBs) are advantageous for large-scale energy storage due to the plentiful and ubiquitous nature of sodium resources, coupled with their lower cost relative to alternative technologies. To expedite the market adoption of SIBs, e...

  • Article
  • Open Access
2 Citations
1,017 Views
17 Pages

The proteolytic processing of the SARS-CoV-2 spike glycoprotein by host cell membrane-associated proteases is a key step in both the entry of the invading virus into the cell and the release of the newly generated viral particles from the infected ce...

  • Article
  • Open Access
10 Citations
4,891 Views
11 Pages

Mo-Doped Na4Fe3(PO4)2P2O7/C Composites for High-Rate and Long-Life Sodium-Ion Batteries

  • Tongtong Chen,
  • Xianying Han,
  • Mengling Jie,
  • Zhiwu Guo,
  • Jiangang Li and
  • Xiangming He

1 June 2024

Na4Fe3(PO4)2P2O7/C (NFPP) is a promising cathode material for sodium-ion batteries, but its electrochemical performance is heavily impeded by its low electronic conductivity. To address this, pure-phase Mo6+-doped Na4Fe3−xMox(PO4)2P2O7/C (Mox-N...

  • Article
  • Open Access
2 Citations
2,833 Views
14 Pages

Synthetic Sulfated Polymers Control Amyloid Aggregation of Ovine Prion Protein and Decrease Its Toxicity

  • Pavel Semenyuk,
  • Diana Evstafyeva,
  • Vladimir Izumrudov and
  • Vladimir Muronetz

5 April 2022

Amyloid aggregation, including aggregation and propagation of prion protein, is a key factor in numerous human diseases, so-called amyloidosis, with a very poor ability for treatment or prevention. The present work describes the effect of sulfated or...

  • Article
  • Open Access
15 Citations
5,623 Views
9 Pages

Recognition of V3+/V4+/V5+ Multielectron Reactions in Na3V(PO4)2: A Potential High Energy Density Cathode for Sodium-Ion Batteries

  • Rui Liu,
  • Ziteng Liang,
  • Yuxuan Xiang,
  • Weimin Zhao,
  • Haodong Liu,
  • Yan Chen,
  • Ke An and
  • Yong Yang

24 February 2020

Na3V(PO4)2 was reported recently as a novel cathode material with high theoretical energy density for Sodium-ion batteries (SIBs). However, whether V3+/V4+/V5+ multielectron reactions can be realized during the charging process is still an open quest...

of 6