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Sotelo S, Oyarce E, Roa K, Boulett A, Pizarro G, Sánchez J. Sodium lignosulfonate as an extracting agent of methylene blue dye using a polymer-enhanced ultrafiltration technique. Int J Biol Macromol 2024; 275:133567. [PMID: 38950799 DOI: 10.1016/j.ijbiomac.2024.133567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 06/13/2024] [Accepted: 06/28/2024] [Indexed: 07/03/2024]
Abstract
The purpose of this research was to evaluate the efficacy of sodium lignosulfonate (LS) as a dye adsorbent in the removal of methylene blue (MB) from water by polymer-enhanced ultrafiltration. Various parameters were evaluated, such as membrane molecular weight cut-off, pH, LS dose, MB concentration, applied pressure, and the effect of interfering ions. The results showed that the use of LS generated a significant increase in MB removal, reaching an elimination of up to 98.0 % with 50.0 mg LS and 100 mg L-1 MB. The maximum MB removal capacity was 21 g g-1 using the enrichment method. In addition, LS was reusable for up to four consecutive cycles of dye removal-elution. The removal test in a simulated liquid industrial waste from the textile industry was also effective, with a MB removal of 97.2 %. These findings indicate that LS is highly effective in removing high concentrations of MB dye, suggesting new prospects for its application in water treatment processes.
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Affiliation(s)
- Sebastián Sotelo
- Departamento de Química, Facultad de Ciencias Naturales, Matemáticas y Medio Ambiente, Universidad Tecnológica Metropolitana (UTEM), Chile
| | - Estefanía Oyarce
- Departamento de Ingeniería Metalúrgica, Facultad de Ingeniería, Universidad de Santiago de Chile (USACH), Santiago, Chile
| | - Karina Roa
- Departamento de Ingeniería Metalúrgica, Facultad de Ingeniería, Universidad de Santiago de Chile (USACH), Santiago, Chile
| | - Andrés Boulett
- Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Santiago, Chile
| | - Guadalupe Pizarro
- Departamento de Química, Facultad de Ciencias Naturales, Matemáticas y Medio Ambiente, Universidad Tecnológica Metropolitana (UTEM), Chile
| | - Julio Sánchez
- Departamento de Química Orgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago, Chile.
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2
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Lifshiz-Simon S, Kunz W, Zemb T, Talmon Y. Ion effects on co-existing pseudo-phases in aqueous surfactant solutions: cryo-TEM, rheometry, and quantification. J Colloid Interface Sci 2024; 660:177-191. [PMID: 38241866 DOI: 10.1016/j.jcis.2024.01.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/31/2023] [Accepted: 01/06/2024] [Indexed: 01/21/2024]
Abstract
HYPOTHESIS Specific alkaline cation effects control the area per headgroup of alkylester sulphates, which modifies the spontaneous packing of the surfactants. The resulting effective packing minimizes the total bending energy frustration and results in a Boltzmann distribution of coexisting pseudo-phases. These pseudo-phases constitute of micelles and other structures of complex morphology: cylindrical sections, end-caps, branching points, and bilayers, all in dynamic equilibrium. According to our model, excess of end-caps or excess of branching points lead to low viscosity, whereas comparable amounts of both structures lead to viscosity maxima. Relative occurrence of branching points and end-caps is the molecular mechanism at the origin of the salt-sensitive viscosity peak in the "salt-curve" (viscosity against salt concentration at fixed surfactant concentration). Up to now, and as indicated in former papers, this has been a pure model without microscopic verification. EXPERIMENTS In this work, we introduce explicit counting of the number of coexisting pseudo-phases as observed by state-of-the-art cryogenic transmission electron microscopy (cryo-TEM). The model system used, i.e., sodium laurylethersulfate (SLES)/salt/water, is very common as part of cosmetic formulations. As added salts, we used Li+, Na+, K+, and Cs+ chlorides. In parallel to imaging, we measured the macroscopic viscosities of the different solutions. FINDINGS With cryogenic transmission electron microscopy (cryo-TEM), we imaged a variety of morphologies (pseudo-phases) in the different aqueous surfactant/salt solutions: cylindrical micelles with end-caps, discs surrounded by "rims", entangled thread-like micelles with branching points, networks with gliding branching points, and bilayers. The relative chemical potentials of these morphologies could be approximated simply by counting the relative proportion of their occurrence. This simple multi-scale approach avoids any ad-hoc "specificity" assumption of ions, and is based on the bending energy model in an extended version of the Benedek "ladder model". It is capable of explaining and even quantifying the location of all viscosity peaks in the "salt-curves" for the different cations investigated, thus confirming the previously proposed model experimentally, and - thanks to cryo-TEM - for the first time on a microscopic scale. Moreover, this approach can also be applied when the added cations lead to newly observed pseudo-phases, such as discs and vesicles. To the best of our knowledge, this is the first time that cryo-TEM is used, together with a mesoscopic model, to describe a macroscopic property such as viscosity and specific ion effects on it, without any a priori assumption about these effects. So, in total, we could a) confirm the predictions of the previously developed model, b) use cryo-TEM imaging and viscosity measurements to predict and find unusual morphologies when varying the cations of the added salt, and c) count the pseudo-phases in cryo-TEM micrographs to quantitatively explain the different nanostructures.
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Affiliation(s)
- Sapir Lifshiz-Simon
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion - Israel Institute of Technology, Haifa 3200003, Israel
| | - Werner Kunz
- Institute of Physical and Theoretical Chemistry, University of Regensburg, Regensburg 93040, Germany
| | - Thomas Zemb
- Institute for Separation Chemistry ICSM, CEA, CNRS, University of Montpellier, ENSCM, Marcoule 30207, France
| | - Yeshayahu Talmon
- Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion - Israel Institute of Technology, Haifa 3200003, Israel.
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Biro RA, Tyrode EC, Thormann E. Reducing Ice Adhesion to Polyelectrolyte Surfaces by Counterion-Mediated Nonfrozen Hydration Water. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38602190 DOI: 10.1021/acsami.4c02434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
Hydrophilic anti-icing coatings can be energy-effective passive solutions for combating ice accretion and reducing ice adhesion. However, their underlying mechanisms of action remain inferential and are ill-defined from a molecular perspective. Here, we systematically investigate the influence of the counterion identity on the shear ice adhesion strength to cationic polymer coatings having quaternary alkyl ammonium moieties as chargeable groups. Temperature-dependent molecular information on the hydrated polymer films is obtained using total internal reflection (TIR) Raman spectroscopy, complemented with differential scanning calorimetry (DSC) and ellipsometry. Ice adhesion measurements show a pronounced counterion-specific behavior with a sharp increase in adhesion at temperatures that depend on the anion identity, following the order Cl- < F- < SCN- < Br- < I-. Linked to the freezing of hydration water, the specific ordering results from differences in ion pairing and the amount of water present within the polymer film. Moreover, similar effects can be promoted by varying the cross-linking density in the coating while keeping the anion identity fixed. These findings shed new light on low ice adhesion mechanisms and may inspire novel approaches for improved anti-icing coatings.
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Affiliation(s)
- Robert A Biro
- Department of Chemistry, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Eric C Tyrode
- Department of Chemistry, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - Esben Thormann
- Department of Chemistry, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
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Mortara L, Mukhina T, Chaimovich H, Brezesinski G, van der Vegt NFA, Schneck E. Anion Competition at Positively Charged Surfactant Monolayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:6949-6961. [PMID: 38502024 DOI: 10.1021/acs.langmuir.3c04003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Interactions of anions with hydrophobic surfaces of proteins and water-soluble polymers depend on the ability of the ions to shed their hydration shells. At positively charged surfactant monolayers, the interactions of anions are less well understood. Due to the interplay of electrostatic surface forces, hydration effects, and ion-ion interactions in the electrostatic double layer, a comprehensive microscopic picture remains elusive. Herein, we study the interactions of chloride, bromide, and a mixture of these two anions at the aqueous interface of dihexadecyldimethylammonium (DHDA+) and dioctadecyldimethylammonium (DODA+) cationic monolayers. Using molecular dynamics simulations and three surface-sensitive X-ray scattering techniques, we demonstrate that bromide interacts preferentially over chloride with both monolayers. The structure of the two monolayers and their interfacial electron density profiles obtained from the simulations quantitatively reproduce the experimental data. We observe that chloride and bromide form contact ion pairs with the quaternary ammonium groups on both monolayers. However, ion pairing with bromide leads to a greater reduction in the number of water molecules hydrating the anion, resulting in more energetically stable ion pairs. This leads to long-range (>3 nm) lateral correlations between bromide ions on the structured DODA+ monolayer. These observations indicate that ion hydration is the dominant factor determining the interfacial electrolyte structure.
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Affiliation(s)
- Laura Mortara
- Chemistry Institute, University of São Paulo, São Paulo, SP 05508-000, Brazil
- Physics Department, Technical University of Darmstadt, Darmstadt 64289, Germany
| | - Tetiana Mukhina
- Physics Department, Technical University of Darmstadt, Darmstadt 64289, Germany
| | - Hernan Chaimovich
- Chemistry Institute, University of São Paulo, São Paulo, SP 05508-000, Brazil
| | - Gerald Brezesinski
- Physics Department, Technical University of Darmstadt, Darmstadt 64289, Germany
| | | | - Emanuel Schneck
- Physics Department, Technical University of Darmstadt, Darmstadt 64289, Germany
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5
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Hengelbrock A, Schmidt A, Strube J. Digital Twin Fundamentals of mRNA In Vitro Transcription in Variable Scale Toward Autonomous Operation. ACS OMEGA 2024; 9:8204-8220. [PMID: 38405539 PMCID: PMC10882708 DOI: 10.1021/acsomega.3c08732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/22/2024] [Accepted: 01/26/2024] [Indexed: 02/27/2024]
Abstract
The COVID-19 pandemic caused the rapid development of mRNA (messenger ribonucleic acid) vaccines and new RNA-based therapeutic methods. However, the approval rate for candidates has the potential to be increased, with a significant number failing so far due to efficacy, safety, and manufacturing deficiencies, hindering equitable vaccine distribution during pandemics. This study focuses on optimizing the production of mRNA, a critical component of mRNA-based vaccines, using a scalable machine by investigating the key mechanisms of mRNA in vitro transcription. First, kinetic parameters for the mRNA production process were determined. The validity of the determination and the robustness of the model are demonstrated by predicting different reactions with and without substrate limitations as well as different transcripts. The optimized reaction conditions, including temperature, urea concentration, and concentration of reaction-enhancing additives, resulted in a 55% increase in mRNA yield with a 33% reduction in truncated mRNA. Additionally, the feasibility of a segmented flow approach allowed for high-throughput screening (HTS), enabling the production of 20 vaccine candidates within a short time frame, representing a 10-fold increase in productivity, compared to nonsegmented reactions limited by the residence time in the plug flow reactor. The findings presented for the first time here contribute to the development of a fully continuous and efficient manufacturing process for mRNA and other cell and gene therapy drugs/vaccine candidates as presented in our previous work, which discussed the integration of process analytical technologies and predictive process models in a Biopharma 4.0 facility to enable the production of clinical and large-scale doses, ensuring a rapid and resilient supply of critical therapeutics. The results in this study especially highlight that the same machine and equipment can be used for screening and manufacturing different drug candidates in continuous operation. By streamlining production and adhering to quality standards, this approach enhances the industry's ability to respond swiftly to pandemics and public health emergencies, addressing the urgent need for accessible and effective vaccines.
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Affiliation(s)
- Alina Hengelbrock
- Institute for Separation
and Process Technology, Clausthal University
of Technology, Clausthal-Zellerfeld 38678, Germany
| | - Axel Schmidt
- Institute for Separation
and Process Technology, Clausthal University
of Technology, Clausthal-Zellerfeld 38678, Germany
| | - Jochen Strube
- Institute for Separation
and Process Technology, Clausthal University
of Technology, Clausthal-Zellerfeld 38678, Germany
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Zhao Z, Pan M, Yang W, Huang C, Qiao C, Yang H, Wang J, Wang X, Liu J, Zeng H. Bioinspired engineered proteins enable universal anchoring strategy for surface functionalization. J Colloid Interface Sci 2023; 650:1525-1535. [PMID: 37487283 DOI: 10.1016/j.jcis.2023.07.108] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/01/2023] [Accepted: 07/17/2023] [Indexed: 07/26/2023]
Abstract
HYPOTHESIS Conventional coating strategies and materials for bio-applications with protective, diagnostic, and therapeutic functions are commonly limited by their arduous preparation processes and lack of on-demand functionalities. Herein, inspired by the 'root-leaf' structure of grass, a series of novel polyacrylate-conjugated proteins can be engineered with sticky bovine serum albumin (BSA) protein as a 'root' anchoring layer and a multifunctional polyacrylate as a 'leaf' functional layer for the facile coating procedure and versatile surface functionalities. EXPERIMENTS The engineered proteins were synthesized based on click chemistry, where the 'root' layer can universally anchor onto both organic and inorganic substrates through a facile dip/spraying method with excellent stability in harsh solution conditions, thanks to its multiple adaptive molecular interactions with substrates that further elucidated by molecular force measurements between the 'root' BSA protein and substrates. The 'leaf' conjugated-polyacrylates imparted coatings with versatile on-demand functionalities, such as resistance to over 99% biofouling in complex biofluids, pH-responsive performance, and robust adhesion with various nanomaterials. FINDINGS By synergistically leveraging the universal anchoring capabilities of BSA with the versatile physicochemical properties of polyacrylates, this study introduces a promising and facile strategy for imparting novel functionalities to a myriad of surfaces through engineering natural proteins and biomaterials for biotechnical and nanotechnical applications.
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Affiliation(s)
- Ziqian Zhao
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Mingfei Pan
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Wenshuai Yang
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Charley Huang
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Chenyu Qiao
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Haoyu Yang
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Jianmei Wang
- Heavy Machinery Engineering Research Center of Education Ministry, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Xiaogang Wang
- Heavy Machinery Engineering Research Center of Education Ministry, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Jifang Liu
- The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510700, China
| | - Hongbo Zeng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada.
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7
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Sohail M, Rahman HMAU, Asghar MN. Drug-ionic surfactant interactions: density, sound speed, spectroscopic, and electrochemical studies. EUROPEAN BIOPHYSICS JOURNAL : EBJ 2023; 52:735-747. [PMID: 37943328 DOI: 10.1007/s00249-023-01689-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 10/14/2023] [Indexed: 11/10/2023]
Abstract
The failure of antibiotics against infectious diseases has become a global health issue due to the incessant use of antibiotics in the community and a lack of entry of new antibacterial drugs onto the market. The limited knowledge of biophysical interactions of existing antibiotics with bio-membranes is one of the major hurdles to design and develop more effective antibiotics. Surfactant systems are the simplest biological membrane models that not only mimic the cell membrane functions but are also used to investigate the biophysical interactions between pharmaceutical drugs and bio-membranes at the molecular level. In this work, volumetric and acoustic studies were used to investigate the molecular interactions of moxifloxacin (MXF), a potential antibacterial drug, with ionic surfactants (dodecyl-tri-methyl-ammonium bromide (DTAB), a cationic surfactant and sodium dodecyl sulfate (SDS), an anionic surfactant) under physiological conditions (phosphate buffer, pH 7.4) at T = 298.15-313.15 K at an interval of 5 K. Various volumetric and acoustic parameters were computed from the density and sound speed data and interpreted in terms of MXF-ionic surfactant interaction using electrostriction effect and co-sphere overlap model. Absorption spectroscopy and cyclic voltammetry were further used to determine the binding, partitioning, and related free energies of MXF with ionic micelles.
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Affiliation(s)
- Muhammad Sohail
- Department of Chemistry, Forman Christian College (A Chartered University), Lahore, 54600, Pakistan
| | | | - Muhammad Nadeem Asghar
- Department of Chemistry, Forman Christian College (A Chartered University), Lahore, 54600, Pakistan.
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8
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Nguyen TTP, Raji F, Nguyen CV, Nguyen NN, Nguyen AV. Effects of Charged Surfactants on Interfacial Water Structure and Macroscopic Properties of the Air-Water Interface. Chemphyschem 2023:e202300062. [PMID: 37679310 DOI: 10.1002/cphc.202300062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 09/09/2023]
Abstract
Surfactants are used to control the macroscopic properties of the air-water interface. However, the link between the surfactant molecular structure and the macroscopic properties remains unclear. Using sum-frequency generation spectroscopy and molecular dynamics simulations, two ionic surfactants (dodecyl trimethylammonium bromide, DTAB, and sodium dodecyl sulphate, SDS) with the same carbon chain lengths and charge magnitude (but different signs) of head groups interact and reorient interfacial water molecules differently. DTAB forms a thicker but sparser interfacial layer than SDS. It is due to the deep penetration into the adsorption zone of Br- counterions compared to smaller Na+ ones, and also due to the flip-flop orientation of water molecules. SDS alters two distinctive interfacial water layers into a layer where H+ points to the air, forming strong hydrogen bonding with the sulphate headgroup. In contrast, only weaker dipole-dipole interactions with the DTAB headgroup are formed as they reorient water molecules with H+ point down to the aqueous phase. Hence, with more molecules adsorbed at the interface, SDS builds up a higher interfacial pressure than DTAB, producing lower surface tension and higher foam stability at a similar bulk concentration. Our findings offer improved knowledge for understanding various processes in the industry and nature.
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Affiliation(s)
- Thao T P Nguyen
- School of Chemical Engineering and UQ Node of the ARC Centre of Excellence for Enabling Eco-efficient Beneficiation of Minerals, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Foad Raji
- School of Chemical Engineering and UQ Node of the ARC Centre of Excellence for Enabling Eco-efficient Beneficiation of Minerals, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Cuong V Nguyen
- School of Chemical Engineering and UQ Node of the ARC Centre of Excellence for Enabling Eco-efficient Beneficiation of Minerals, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Ngoc N Nguyen
- School of Chemical Engineering and UQ Node of the ARC Centre of Excellence for Enabling Eco-efficient Beneficiation of Minerals, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Anh V Nguyen
- School of Chemical Engineering and UQ Node of the ARC Centre of Excellence for Enabling Eco-efficient Beneficiation of Minerals, The University of Queensland, Brisbane, QLD 4072, Australia
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9
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Arellano H, Nardello-Rataj V, Szunerits S, Boukherroub R, Fameau AL. Saturated long chain fatty acids as possible natural alternative antibacterial agents: Opportunities and challenges. Adv Colloid Interface Sci 2023; 318:102952. [PMID: 37392663 DOI: 10.1016/j.cis.2023.102952] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/14/2023] [Accepted: 06/16/2023] [Indexed: 07/03/2023]
Abstract
The spread of new strains of antibiotic-resistant pathogenic microorganisms has led to the urgent need to discover and develop new antimicrobial systems. The antibacterial effects of fatty acids have been well-known and recognized since the first experiments of Robert Koch in 1881, and they are now used in diverse fields. Fatty acids can prevent the growth and directly kill bacteria by insertion into their membrane. For that, a sufficient amount of fatty acid molecules has to be solubilized in water to transfer from the aqueous phase to the cell membrane. Due to conflicting results in the literature and lack of standardization methods, it is very difficult to draw clear conclusions on the antibacterial effect of fatty acids. Most of the current studies link fatty acids' effectiveness against bacteria to their chemical structure, notably the alkyl chain length and the presence of double bonds in their chain. Furthermore, the solubility of fatty acids and their critical aggregation concentration is not only related to their structure, but also influenced by medium conditions (pH, temperature, ionic strength, etc.). There is a possibility that the antibacterial activity of saturated long chain fatty acids (LCFA) may be underestimated due to the lack of water solubility and the use of unsuitable methods to assess their antibacterial activity. Thus, enhancing the solubility of these long chain saturated fatty acids is the main goal before examining their antibacterial properties. To increase their water solubility and thereby improve their antibacterial efficacy, novel alternatives may be considered, including the use of organic positively charged counter-ions instead of the conventional sodium and potassium soaps, the formation of catanionic systems, the mixture with co-surfactants, and solubilization in emulsion systems. This review summarizes the latest findings on fatty acids as antibacterial agents, with a focus on long chain saturated fatty acids. Additionally, it highlights the different ways to improve their water solubility, which may be a crucial factor in increasing their antibacterial efficacy. We finish with a discussion on the challenges, strategies and opportunities for the formulation of LCFAs as antibacterial agents.
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Affiliation(s)
- Helena Arellano
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Véronique Nardello-Rataj
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Sabine Szunerits
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520 - IEMN, F-59000 Lille, France
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520 - IEMN, F-59000 Lille, France
| | - Anne-Laure Fameau
- Univ. Lille, CNRS, INRAe, Centrale Lille, UMET, F-59000, Lille, France.
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Yang MR, Cheng YT, Tsai HC, Darge HF, Huang CC, Lin SY. Hofmeister effect-based soaking strategy for gelatin hydrogels with adjustable gelation temperature, mechanical properties, and ionic conductivity. BIOMATERIALS ADVANCES 2023; 152:213504. [PMID: 37331244 DOI: 10.1016/j.bioadv.2023.213504] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 03/19/2023] [Accepted: 06/05/2023] [Indexed: 06/20/2023]
Abstract
As a natural polymer with good biocompatibility, gelatin hydrogel has been widely used in the field of biomedical science for a long time. However, the lack of suitable gelation temperature and mechanical properties often limit the clinical applicability in diverse and complex environments. Here, we proposed a strategy based on the Hofmeister effect that gelatin hydrogels were soaked in the appropriate concentration of sodium sulfate solution, and the change in molecular chain interactions mainly guided by kosmotropic ions resulted in a comprehensive adjustment of multiple properties. A series of gelatin hydrogels treated with different concentrations of the salt solution gave rise to microstructural changes, which brought a decrease in the number and size of pores, a wide range of gelation temperature from 32 °C to 46 °C, a stress enhancement of about 40 times stronger to 0.8345 MPa, a strain increase of about 7 times higher to 238.05 %, and a certain degree of electrical conductivity to be utilized for versatile applications. In this regard, for example, we prepared microneedles and obtained a remarkable compression (punctuation) strength of 0.661 N/needle, which was 55 times greater than those of untreated ones. Overall, by integrating various characterizations and suggesting the corresponding mechanism behind the phenomenon, this method provides a simpler and more convenient performance control procedure. This allowed us to easily modulate the properties of the hydrogel as per the intended purpose, revealing its vast potential applications such as smart sensors, electronic skin, and drug delivery.
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Affiliation(s)
- Meng-Ru Yang
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Yu-Ting Cheng
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Hsieh-Chih Tsai
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, Taiwan; Advanced Membrane Materials Center, National Taiwan University of Science and Technology, Taipei, Taiwan; R&D Center for Membrane Technology, Chung Yuan Christian University, Taoyuan, Taiwan.
| | - Haile Fentahun Darge
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Chun-Chiang Huang
- Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu, Taiwan.
| | - Shuian-Yin Lin
- Biomedical Technology and Device Research Center, Industrial Technology Research Institute, Hsinchu, Taiwan.
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11
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How colloid nature drives the interactions between actinide and carboxylic surfactant in sol: Towards a mesostructured nanoporous actinide oxide material. J Colloid Interface Sci 2023; 637:207-215. [PMID: 36701866 DOI: 10.1016/j.jcis.2023.01.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 01/22/2023]
Abstract
HYPOTHESIS The key to prepare a mesostructured porous material by a soft-template route coupled to a colloidal sol-gel process is to control the surfactant-colloid interface. In the case of tetravalent actinide ions, their high reactivity in aqueous media always leads to uncontrolled and irreversible condensation. The addition of a complexing agent to the sol may moderate these reactions and enhances the interaction between the colloids and the surfactant to in fine prepare a mesostructured nanoporous actinide oxide material. EXPERIMENTS Several colloidal sols were prepared without and with formic acid as complexing agent by varying the molar ratios between thorium, carboxylic surfactant and pH. Small and Wide Angle X-ray Scattering were used to characterize the nature of the colloids, their interaction with the surfactant and the final ThO2 materials. FINDINGS Depending on the colloid nature, hexagonal or worm-like hybrid mesophase is formed. The thermal treatment of the worm-like mesophase with a sufficient amount of Th-formic acid hexameric species coated at the surface of surfactant micelles generates micrometric ThO2 nanofibers. This material having an accessible porosity opens new perspectives to be impregnated with minor actinide solutions offering a promising safety method for the fabrication of mixed oxide nuclear fuel and the minor actinide transmutation.
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12
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He X, Ewing AG. Hofmeister Series: From Aqueous Solution of Biomolecules to Single Cells and Nanovesicles. Chembiochem 2023; 24:e202200694. [PMID: 37043703 DOI: 10.1002/cbic.202200694] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/30/2023] [Indexed: 04/14/2023]
Abstract
Hofmeister effects play a critical role in numerous physicochemical and biological phenomena, including the solubility and/or accumulation of proteins, the activities of enzymes, ion transport in biochannels, the structure of lipid bilayers, and the dynamics of vesicle opening and exocytosis. This minireview focuses on how ionic specificity affects the physicochemical properties of biomolecules to regulate cellular exocytosis, vesicular content, and nanovesicle opening. We summarize recent progress in further understanding Hofmeister effects on biomacromolecules and their applications in biological systems. These important steps have increased our understanding of the Hofmeister effects on cellular exocytosis, vesicular content, and nanovesicle opening. Increasing evidence is firmly establishing that the ions along the Hofmeister series play an important role in living organisms that has often been ignored.
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Affiliation(s)
- Xiulan He
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Andrew G Ewing
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296, Gothenburg, Sweden
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13
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Callaghan C, Califano D, Feresin Gomes MH, Pereira de Carvalho HW, Edler KJ, Mattia D. Cellulose Acetate Microbeads for Controlled Delivery of Essential Micronutrients. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2023; 11:4749-4758. [PMID: 37008180 PMCID: PMC10052346 DOI: 10.1021/acssuschemeng.2c07269] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 03/07/2023] [Indexed: 06/19/2023]
Abstract
The controlled delivery of micronutrients to soil and plants is essential to increase agricultural yields. However, this is today achieved using fossil fuel-derived plastic carriers, posing environmental risks and contributing to global carbon emissions. In this work, a novel and efficient way to prepare biodegradable zinc-impregnated cellulose acetate beads for use as controlled release fertilizers is presented. Cellulose acetate solutions in DMSO were dropped into aqueous antisolvent solutions of different zinc salts. The droplets underwent phase inversion, forming solid cellulose acetate beads containing zinc, as a function of zinc salt type and concentration. Even higher values of zinc uptake (up to 15.5%) were obtained when zinc acetate was added to the cellulose acetate-DMSO solution, prior to dropping in aqueous zinc salt antisolvent solutions. The release profile in water of the beads prepared using the different solvents was linked to the properties of the counter-ions via the Hofmeister series. Studies in soil showed the potential for longer release times, up to 130 days for zinc sulfate beads. These results, together with the efficient bead production method, demonstrate the potential of zinc-impregnated cellulose acetate beads to replace the plastic-based controlled delivery products used today, contributing to the reduction of carbon emissions and potential environmental impacts due to the uptake of plastic in plants and animals.
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Affiliation(s)
- Ciarán Callaghan
- Centre
for Sustainable & Circular Technologies, University of Bath, Bath BA27AY, U.K.
- Department
of Chemical Engineering, University of Bath, Bath BA27AY, U.K.
| | - Davide Califano
- Centre
for Sustainable & Circular Technologies, University of Bath, Bath BA27AY, U.K.
| | | | | | - Karen J. Edler
- Department
of Chemical Engineering, University of Bath, Bath BA27AY, U.K.
- Centre
for Analysis and Synthesis, Department of Chemistry, Lund University, Lund 221 00, Sweden
| | - Davide Mattia
- Centre
for Sustainable & Circular Technologies, University of Bath, Bath BA27AY, U.K.
- Department
of Chemical Engineering, University of Bath, Bath BA27AY, U.K.
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14
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Rhamnolipid Self-Aggregation in Aqueous Media: A Long Journey toward the Definition of Structure–Property Relationships. Int J Mol Sci 2023; 24:ijms24065395. [PMID: 36982468 PMCID: PMC10048978 DOI: 10.3390/ijms24065395] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 03/16/2023] Open
Abstract
The need to protect human and environmental health and avoid the widespread use of substances obtained from nonrenewable sources is steering research toward the discovery and development of new molecules characterized by high biocompatibility and biodegradability. Due to their very widespread use, a class of substances for which this need is particularly urgent is that of surfactants. In this respect, an attractive and promising alternative to commonly used synthetic surfactants is represented by so-called biosurfactants, amphiphiles naturally derived from microorganisms. One of the best-known families of biosurfactants is that of rhamnolipids, which are glycolipids with a headgroup formed by one or two rhamnose units. Great scientific and technological effort has been devoted to optimization of their production processes, as well as their physicochemical characterization. However, a conclusive structure–function relationship is far from being defined. In this review, we aim to move a step forward in this direction, by presenting a comprehensive and unified discussion of physicochemical properties of rhamnolipids as a function of solution conditions and rhamnolipid structure. We also discuss still unresolved issues that deserve further investigation in the future, to allow the replacement of conventional surfactants with rhamnolipids.
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15
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Scheepers D, Casimiro A, Borneman Z, Nijmeijer K. Addressing Specific (Poly)ion Effects for Layer-by-Layer Membranes. ACS APPLIED POLYMER MATERIALS 2023; 5:2032-2042. [PMID: 36935653 PMCID: PMC10012173 DOI: 10.1021/acsapm.2c02078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 01/31/2023] [Indexed: 05/12/2023]
Abstract
Layer-by-layer (LbL) assembly of the alternating adsorption of oppositely charged polyions is an extensively studied method to produce nanofiltration membranes. In this work, the concept of chaotropicity of the polycation and its counterion is introduced in the LbL field. In general, the more chaotropic a polyion, the lower its effective charge, charge availability, and hydrophilicity. Here, this is researched for the well-known PDADMAC (polydiallyldimethylammonium chloride) and PAH (poly(allylamine) hydrochloride), and the synthesized PAMA (polyallylmultimethylammonium), with two different counterions (I- and Cl-). Higher chaotropicity (PDADMAC > PAMA-I > PAMA-Cl > PAH) translates into a reduced charge availability and a more pronounced extrinsic charge compensation, resulting in more mass adsorption and a higher pure water permeability. PAMA-containing membranes show the most interesting results in the series. Due to its molecular structure, the chaotropicity of this polycation perfectly lies between PDADMAC and PAH. Overall, the chaotropicity of PAMA membranes allows for the formation of the right balance between extrinsic and intrinsic charge compensation with PSS. Moreover, modifying the nature of the counterions of PAMA (I- or Cl-) allows to tune the density of the multilayer and results in lower size exclusion abilities with PAMA-I compared to PAMA-Cl (higher MWCO and lower MgSO4 retention). In general, the contextualization of the polyion interaction within the specific (poly)ion effects expands the understanding of the influence of the charge density of polycations without ignoring the chemical nature of the functional groups in their monomer units.
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16
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He Q, Qiao Y, Medina Jimenez C, Hackler R, Martinson ABF, Chen W, Tirrell MV. Ion Specificity Influences on the Structure of Zwitterionic Brushes. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Affiliation(s)
- Qiming He
- Materials Science Division and Center for Molecular Engineering, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Pritzker School of Molecular Engineering, University of Chicago, 5640 S Ellis Ave, Chicago, Illinois 60637, United States
| | - Yijun Qiao
- Materials Science Division and Center for Molecular Engineering, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Carlos Medina Jimenez
- Pritzker School of Molecular Engineering, University of Chicago, 5640 S Ellis Ave, Chicago, Illinois 60637, United States
| | - Ryan Hackler
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Alex B. F. Martinson
- Materials Science Division and Center for Molecular Engineering, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Wei Chen
- Materials Science Division and Center for Molecular Engineering, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Pritzker School of Molecular Engineering, University of Chicago, 5640 S Ellis Ave, Chicago, Illinois 60637, United States
| | - Matthew V. Tirrell
- Materials Science Division and Center for Molecular Engineering, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Pritzker School of Molecular Engineering, University of Chicago, 5640 S Ellis Ave, Chicago, Illinois 60637, United States
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17
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Kosmotropes and chaotropes: Specific ion effects to tailor layer-by-layer membrane characteristics and performances. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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18
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Zhao Z, Pan M, Qiao C, Xiang L, Liu X, Yang W, Chen XZ, Zeng H. Bionic Engineered Protein Coating Boosting Anti-Biofouling in Complex Biological Fluids. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2208824. [PMID: 36367362 DOI: 10.1002/adma.202208824] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 11/03/2022] [Indexed: 06/16/2023]
Abstract
Implantable medical devices have been widely applied in diagnostics, therapeutics, organ restoration, and other biomedical areas, but often suffer from dysfunction and infections due to irreversible biofouling. Inspired by the self-defensive "vine-thorn" structure of climbing thorny plants, a zwitterion-conjugated protein is engineered via grafting sulfobetaine methacrylate (SBMA) segments on native bovine serum albumin (BSA) protein molecules for surface coating and antifouling applications in complex biological fluids. Unlike traditional synthetic polymers of which the coating operation requires arduous surface pretreatments, the engineered protein BSA@PSBMA (PolySBMA conjugated BSA) can achieve facile and surface-independent coating on various substrates through a simple dipping/spraying method. Interfacial molecular force measurements and adsorption tests demonstrate that the substrate-foulant attraction is significantly suppressed due to strong interfacial hydration and steric repulsion of the bionic structure of BSA@PSBMA, enabling coating surfaces to exhibit superior resistance to biofouling for a broad spectrum of species including proteins, metabolites, cells, and biofluids under various biological conditions. This work provides an innovative paradigm of using native proteins to generate engineered proteins with extraordinary antifouling capability and desired surface properties for bioengineering applications.
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Affiliation(s)
- Ziqian Zhao
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
| | - Mingfei Pan
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
| | - Chenyu Qiao
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
| | - Li Xiang
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
- School of Mechanical Engineering, Southeast University, Nanjing, Jiangsu, 211189, China
| | - Xiong Liu
- Department of Physiology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, T6G 2H7, Canada
| | - Wenshuai Yang
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
| | - Xing-Zhen Chen
- Department of Physiology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, T6G 2H7, Canada
| | - Hongbo Zeng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
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19
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Bujok S, Konefał R, Nevoralová M, Bednarz S, Mielczarek K, Beneš H. Cation identity in clay-polyelectrolyte self-assembled hydrogels: Rheological and NMR study of the polyitaconate-counterion interactions. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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20
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The effect of ethanol on fibrillar hydrogels formed by glycyrrhizic acid monoammonium salt. J Colloid Interface Sci 2023; 630:762-775. [DOI: 10.1016/j.jcis.2022.10.138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 11/09/2022]
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21
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Sui N, Miao S, Cui K, Li T, Zhou H, Huang K. Kinetic enhanced separation of praseodymium and neodymium induced by specific ion effect. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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22
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Lemahieu G, Ontiveros JF, Molinier V, Aubry JM. SPI-slope/PIT-slope mapping as a guiding tool for the selection of technical grade surfactants for chemical enhanced oil recovery. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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23
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Ni H. On the hydrophobic hydration, solvation and interface: A thought essay (I). J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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24
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Jung M, Tadesse B, Dick C, Logan A, Dyer L, Albijanic B. Influence of monovalent and divalent cations on monazite flotation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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25
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Ya. Zakharova L, Vasilieva EA, Mirgorodskaya AB, Zakharov SV, Pavlov RV, Kashapova NE, Gaynanova GA. Hydrotropes: solubilization of nonpolar compounds and modification of surfactant solutions. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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26
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Barrios N, Javier Patiño-Agudelo Á, Herbert Quina F, Salas C, Pereira J. Specific anion effects on the interfacial properties and aggregation of alkylphenol ethoxylate surfactants. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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27
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Hirpara D, Patel B, Chavda V, Desai A, Kumar S. Micellization and clouding behaviour of an ionic surfactant in a deep eutectic solvent: A case of the reline-water mixture. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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28
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Liu Z, Shi X, Shu W, Qi S, He X, Wang X, He X. Effect of Hydrophobic Hydration on the Self-Assembling Behavior of Poly ( l-Lactide) Homopolymers with an Ionic End Group. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhen Liu
- School of Chemistry and Molecular Engineering, East China Normal University, No. 500 Dongchuan Road, Shanghai 200241, China
| | - Xinjie Shi
- School of Chemistry and Molecular Engineering, East China Normal University, No. 500 Dongchuan Road, Shanghai 200241, China
| | - Wenchao Shu
- School of Chemistry and Molecular Engineering, East China Normal University, No. 500 Dongchuan Road, Shanghai 200241, China
| | - Shuo Qi
- School of Chemistry and Molecular Engineering, East China Normal University, No. 500 Dongchuan Road, Shanghai 200241, China
| | - Xiaoming He
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Xiaosong Wang
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Xiaohua He
- School of Chemistry and Molecular Engineering, East China Normal University, No. 500 Dongchuan Road, Shanghai 200241, China
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29
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Petschacher P, Ghanbari R, Sampl C, Wiltsche H, Kádár R, Spirk S, Nypelö T. Dynamic and Static Assembly of Sulfated Cellulose Nanocrystals with Alkali Metal Counter Cations. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3131. [PMID: 36144921 PMCID: PMC9502719 DOI: 10.3390/nano12183131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 08/30/2022] [Accepted: 09/02/2022] [Indexed: 06/16/2023]
Abstract
Sulfate groups on cellulose particles such as cellulose nanocrystals (CNCs) provide colloidal stability credit to electrostatic repulsion between the like-charged particles. The introduction of sodium counter cations on the sulfate groups enables drying of the CNC suspensions without irreversible aggregation. Less is known about the effect of other counter cations than sodium on extending the properties of the CNC particles. Here, we introduce the alkali metal counter cations, Li+, Na+, K+, Rb+, and Cs+, on sulfated CNCs without an ion exchange resin, which, so far, has been a common practice. We demonstrate that the facile ion exchange is an efficient method to exchange to any alkali metal cation of sulfate half esters, with exchange rates between 76 and 89%. The ability to form liquid crystalline order in rest was observed by the presence of birefringence patterns and followed the Hofmeister series prediction of a decreasing ability to form anisotropy with an increasing element number. However, we observed the K-CNC rheology and birefringence as a stand-out case within the series of alkali metal modifications, with dynamic moduli and loss tangent indicating a network disruptive effect compared to the other counter cations, whereas observation of the development of birefringence patterns in flow showed the absence of self- or dynamically-assembled liquid crystalline order.
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Affiliation(s)
- Patrick Petschacher
- Institute of Bioproducts and Paper Technology, Graz University of Technology, Inffeldgasse 23, 8010 Graz, Austria
| | - Reza Ghanbari
- Department of Industrial Materials Science, Chalmers University of Technology, 41296 Gothenburg, Sweden
| | - Carina Sampl
- Institute of Bioproducts and Paper Technology, Graz University of Technology, Inffeldgasse 23, 8010 Graz, Austria
| | - Helmar Wiltsche
- Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology, 8010 Graz, Austria
| | - Roland Kádár
- Department of Industrial Materials Science, Chalmers University of Technology, 41296 Gothenburg, Sweden
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden
| | - Stefan Spirk
- Institute of Bioproducts and Paper Technology, Graz University of Technology, Inffeldgasse 23, 8010 Graz, Austria
| | - Tiina Nypelö
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden
- Wallenberg Wood Science Center, Chalmers University of Technology, 41296 Gothenburg, Sweden
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30
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Jeong B, Oh JS, Kim DY, Kim DG, Kim YI, Heo J, Lee HK. Ion-Selective Electrode Based on a Novel Biomimetic Nicotinamide Compound for Phosphate Ion Sensor. Polymers (Basel) 2022; 14:3392. [PMID: 36015649 PMCID: PMC9414682 DOI: 10.3390/polym14163392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/10/2022] [Accepted: 08/17/2022] [Indexed: 11/16/2022] Open
Abstract
Phosphorus is not only an import nutrient to aquatic habitats, but it also acts as a growth inhibitor in aquatic ecosystems; however, it also aggravates environmental issues, such as eutrophication. There is a growing interest in rapid phosphorus detection to manage and protect water resources. Due to the large molecular structure and high hydration energy of phosphate ions, ion-selective electrodes (ISEs) remain in their infancy for real-time measurements in terms of practical application. In this study, a newly developed ionophore based on a biomimetic nicotinamide functional group was used to detect phosphate selectively, displaying efficient binding through charge interactions and hydrogen bonds. The ISE membrane containing silicone rubber demonstrated an effective detection performance over a long period of time. With a dynamic range between 10-6 and 10-2 M and a limit of detection of 0.85 × 10-6 M (26 μg/L), the newly synthesized ISE membranes demonstrated selectivity for phosphate ions over other ions, including acetate, sulfate, and chloride.
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Affiliation(s)
- Bongjin Jeong
- ICT Creative Research Laboratory, Electronics & Telecommunications Research Institute, Daejeon 34129, Korea
| | - Jin Seong Oh
- Department of Chemistry, Chungnam National University, Daejeon 34134, Korea
| | - Do Yeob Kim
- ICT Creative Research Laboratory, Electronics & Telecommunications Research Institute, Daejeon 34129, Korea
| | - Dong Gyu Kim
- Department of Chemistry, Chungnam National University, Daejeon 34134, Korea
| | - Young Il Kim
- Department of Chemistry, Chungnam National University, Daejeon 34134, Korea
| | - Jungseok Heo
- Department of Chemistry, Chungnam National University, Daejeon 34134, Korea
| | - Hyung-Kun Lee
- ICT Creative Research Laboratory, Electronics & Telecommunications Research Institute, Daejeon 34129, Korea
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31
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Sood AK, Sethi O, Aggarwal M. Evaluation of mixed micellar interactions of
C
n
BCl
and
SDBS
mixtures using dissociated Margules model and influence of different salts. J SURFACTANTS DETERG 2022. [DOI: 10.1002/jsde.12616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ashwani Kumar Sood
- Department of Chemistry, UGC Centre for Advanced Studies II Guru Nanak Dev University Amritsar India
| | - Omish Sethi
- Department of Chemistry, UGC Centre for Advanced Studies II Guru Nanak Dev University Amritsar India
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32
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Effect of Divalent and Monovalent Salts on Interfacial Dilational Rheology of Sodium Dodecylbenzene Sulfonate Solutions. COLLOIDS AND INTERFACES 2022. [DOI: 10.3390/colloids6030041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
This study presents the equilibrium surface tension (ST), critical micelle concentration (CMC) and the dilational viscoelasticity of sodium dodecylbenzene sulfonate (SDBS)-adsorbed layers in the presence of NaCl, KCl, LiCl, CaCl2 and MgCl2 at 0.001–0.1 M salt concentration. The ST and surface dilational viscoelasticity were determined using bubble-shape analysis technique. To capture the complete profile of dilational viscoelastic properties of SDBS-adsorbed layers, experiments were conducted within a wide range of SDBS concentrations at a fixed oscillating frequency of 0.01 Hz. Salts were found to lower the ST and induce micellar formation at all concentrations. However, the addition of salts increased dilational viscoelastic modulus only at a certain range of SDBS concentration (below 0.01–0.02 mM SDBS). Above this concentration range, salts decreased dilational viscoelasticity due to the domination of the induced molecular exchange dampening the ST gradient. The dilational viscoelasticity of the salts of interest were in the order CaCl2 > MgCl2 > KCl > NaCl > LiCl. The charge density of ions was found as the corresponding factor for the higher impact of divalent ions compared to monovalent ions, while the impact of monovalent ions was assigned to the degree of matching in water affinities, and thereby the tendency for ion-pairing between SDBS head groups and monovalent ions.
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33
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Bai L, Liu L, Esquivel M, Tardy BL, Huan S, Niu X, Liu S, Yang G, Fan Y, Rojas OJ. Nanochitin: Chemistry, Structure, Assembly, and Applications. Chem Rev 2022; 122:11604-11674. [PMID: 35653785 PMCID: PMC9284562 DOI: 10.1021/acs.chemrev.2c00125] [Citation(s) in RCA: 80] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Chitin, a fascinating biopolymer found in living organisms, fulfills current demands of availability, sustainability, biocompatibility, biodegradability, functionality, and renewability. A feature of chitin is its ability to structure into hierarchical assemblies, spanning the nano- and macroscales, imparting toughness and resistance (chemical, biological, among others) to multicomponent materials as well as adding adaptability, tunability, and versatility. Retaining the inherent structural characteristics of chitin and its colloidal features in dispersed media has been central to its use, considering it as a building block for the construction of emerging materials. Top-down chitin designs have been reported and differentiate from the traditional molecular-level, bottom-up synthesis and assembly for material development. Such topics are the focus of this Review, which also covers the origins and biological characteristics of chitin and their influence on the morphological and physical-chemical properties. We discuss recent achievements in the isolation, deconstruction, and fractionation of chitin nanostructures of varying axial aspects (nanofibrils and nanorods) along with methods for their modification and assembly into functional materials. We highlight the role of nanochitin in its native architecture and as a component of materials subjected to multiscale interactions, leading to highly dynamic and functional structures. We introduce the most recent advances in the applications of nanochitin-derived materials and industrialization efforts, following green manufacturing principles. Finally, we offer a critical perspective about the adoption of nanochitin in the context of advanced, sustainable materials.
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Affiliation(s)
- Long Bai
- Key
Laboratory of Bio-based Material Science & Technology (Ministry
of Education), Northeast Forestry University, Harbin 150040, P.R. China
- Bioproducts
Institute, Department of Chemical & Biological Engineering, Department
of Chemistry, and Department of Wood Science, 2360 East Mall, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Liang Liu
- Jiangsu
Co-Innovation Center of Efficient Processing and Utilization of Forest
Resources, Jiangsu Key Lab of Biomass-Based Green Fuel and Chemicals,
College of Chemical Engineering, Nanjing
Forestry University, 159 Longpan Road, Nanjing 210037, P.R. China
| | - Marianelly Esquivel
- Polymer
Research Laboratory, Department of Chemistry, National University of Costa Rica, Heredia 3000, Costa Rica
| | - Blaise L. Tardy
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Aalto, Finland
- Department
of Chemical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Siqi Huan
- Key
Laboratory of Bio-based Material Science & Technology (Ministry
of Education), Northeast Forestry University, Harbin 150040, P.R. China
- Bioproducts
Institute, Department of Chemical & Biological Engineering, Department
of Chemistry, and Department of Wood Science, 2360 East Mall, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Xun Niu
- Bioproducts
Institute, Department of Chemical & Biological Engineering, Department
of Chemistry, and Department of Wood Science, 2360 East Mall, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Shouxin Liu
- Key
Laboratory of Bio-based Material Science & Technology (Ministry
of Education), Northeast Forestry University, Harbin 150040, P.R. China
| | - Guihua Yang
- State
Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of
Sciences, Jinan 250353, China
| | - Yimin Fan
- Jiangsu
Co-Innovation Center of Efficient Processing and Utilization of Forest
Resources, Jiangsu Key Lab of Biomass-Based Green Fuel and Chemicals,
College of Chemical Engineering, Nanjing
Forestry University, 159 Longpan Road, Nanjing 210037, P.R. China
| | - Orlando J. Rojas
- Bioproducts
Institute, Department of Chemical & Biological Engineering, Department
of Chemistry, and Department of Wood Science, 2360 East Mall, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Aalto, Finland
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34
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Yuan H, Liu G. Polyelectrolyte Complexation When Considering the Counterion-Mediated Hydrogen Bonding. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8179-8186. [PMID: 35748635 DOI: 10.1021/acs.langmuir.2c01186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In this work, we have investigated a pH-modulated complexation between two oppositely charged strong polyelectrolytes to demonstrate the effect of counterion-mediated hydrogen bonding (CMHB) on polyelectrolyte complexation. We have found that such a pH-modulated complexation cannot be understood without considering the CMHB. Thermodynamically, the effect of CMHB on the polyelectrolyte complexation is manifested by the alteration of both enthalpic and entropic contributions to the free energy change. The pH-dependent intrinsic ion-pairing and complex coacervation processes of the polyelectrolyte complexation can be understood when considering the CMHB. Our study demonstrates that both the extent of polyelectrolyte complex formation in bulk solutions and the formation of polyelectrolyte multilayers on surfaces are controlled by the pH-dependent intrinsic ion-pairing process. Furthermore, on the basis of the pH-dependent intrinsic ion pairing, the properties of the multilayers can be tuned by pH. This work provides a new strategy to control the polyelectrolyte complexation with counterions and will inspire new ideas for building advanced polyelectrolyte materials.
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Affiliation(s)
- Haiyang Yuan
- Department of Chemical Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, P. R. China 230026
| | - Guangming Liu
- Department of Chemical Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, P. R. China 230026
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35
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Ginzburg VV. Mesoscale Modeling of Micellization and Adsorption of Surfactants and Surfactant-Like Polymers in Solution: Challenges and Opportunities. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Valeriy V. Ginzburg
- Department of Chemical Engineering and Materials Science, Michigan State University, 428 S. Shaw Lane, Room 2100, East Lansing, Michigan 48824-1226, United States
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36
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Molchanov VS, Shibaev AV, Karamov EV, Larichev VF, Kornilaeva GV, Fedyakina IT, Turgiev AS, Philippova OE, Khokhlov AR. Antiseptic Polymer-Surfactant Complexes with Long-Lasting Activity against SARS-CoV-2. Polymers (Basel) 2022; 14:2444. [PMID: 35746017 PMCID: PMC9228194 DOI: 10.3390/polym14122444] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/11/2022] [Accepted: 06/14/2022] [Indexed: 12/12/2022] Open
Abstract
Antiseptic polymer gel-surfactant complexes were prepared by incorporating the low-molecular-weight cationic disinfectant cetylpyridinium chloride into the oppositely charged, slightly cross-linked polymer matrices. Three types of polymers were used: copolymers of acrylamide and sodium 2-acrylamido-2-methylpropane sulfonate; copolymers of acrylamide and sodium methacrylate; copolymers of vinylpyrrolidone and sodium methacrylate. It was shown that the rate of the release of the cationic disinfectant from the oppositely charged polymer gels could be tuned in a fairly broad range by varying the concentration of the disinfectant, the degree of swelling, and degree of cross-linking of the gel and the content/type of anionic repeat units in the polymer matrix. Polymer-surfactant complexes were demonstrated to reduce SARS-CoV-2 titer by seven orders of magnitude in as little as 5 s. The complexes retained strong virucidal activity against SARS-CoV-2 for at least one week.
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Affiliation(s)
- Vyacheslav S. Molchanov
- Physics Department, Lomonosov Moscow State University, 119991 Moscow, Russia; (V.S.M.); (A.V.S.); (A.R.K.)
| | - Andrey V. Shibaev
- Physics Department, Lomonosov Moscow State University, 119991 Moscow, Russia; (V.S.M.); (A.V.S.); (A.R.K.)
| | - Eduard V. Karamov
- Gamaleya National Research Center for Epidemiology and Microbiology of the Russian Ministry of Health, 123098 Moscow, Russia; (E.V.K.); (V.F.L.); (G.V.K.); (I.T.F.); (A.S.T.)
- National Medical Research Center of Phthisiopulmonology and Infectious Diseases of the Russian Ministry of Health, 127473 Moscow, Russia
| | - Viktor F. Larichev
- Gamaleya National Research Center for Epidemiology and Microbiology of the Russian Ministry of Health, 123098 Moscow, Russia; (E.V.K.); (V.F.L.); (G.V.K.); (I.T.F.); (A.S.T.)
| | - Galina V. Kornilaeva
- Gamaleya National Research Center for Epidemiology and Microbiology of the Russian Ministry of Health, 123098 Moscow, Russia; (E.V.K.); (V.F.L.); (G.V.K.); (I.T.F.); (A.S.T.)
| | - Irina T. Fedyakina
- Gamaleya National Research Center for Epidemiology and Microbiology of the Russian Ministry of Health, 123098 Moscow, Russia; (E.V.K.); (V.F.L.); (G.V.K.); (I.T.F.); (A.S.T.)
| | - Ali S. Turgiev
- Gamaleya National Research Center for Epidemiology and Microbiology of the Russian Ministry of Health, 123098 Moscow, Russia; (E.V.K.); (V.F.L.); (G.V.K.); (I.T.F.); (A.S.T.)
- National Medical Research Center of Phthisiopulmonology and Infectious Diseases of the Russian Ministry of Health, 127473 Moscow, Russia
| | - Olga E. Philippova
- Physics Department, Lomonosov Moscow State University, 119991 Moscow, Russia; (V.S.M.); (A.V.S.); (A.R.K.)
| | - Alexei R. Khokhlov
- Physics Department, Lomonosov Moscow State University, 119991 Moscow, Russia; (V.S.M.); (A.V.S.); (A.R.K.)
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37
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Müller E, Drechsler M, Klein R, Heilmann J, Estrine B, Kunz W. Physical-Chemical and Toxicological Properties of Osmolyte-Based Cationic Surfactants and Spontaneously Formed Low-Toxic Catanionic Vesicles out of them. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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38
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Mitrinova Z, Alexandrov H, Denkov N, Tcholakova S. Effect of counter-ion on rheological properties of mixed surfactant solutions. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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39
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Stemplinger S, Causse J, Prévost S, Pellet-Rostaing S, Zemb T, Horinek D. Short-chain branched sulfosuccinate as a missing link between surfactants and hydrotropes. Phys Chem Chem Phys 2022; 24:11353-11361. [PMID: 35485971 DOI: 10.1039/d1cp04849j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Surfactants aggregate in water into micelles, and these micelles incorporate organic substances to solubilize them. Hydrotropes are compounds that increase the solubility of hydrophobic substances in water without this form of aggregation. Decreasing the chain length of the classical surfactant Aerosol OT (AOT) from C8 to C5 results in a molecule with intermediate properties. Molecular dynamics simulations and surface tension measurements are performed on this short chain derivative of AOT. This compound shows high solubility and at the same time progressive weak aggregation. The hydration of head groups hinders significant plunging into a hydrophobic core, which leads to well defined liquid chain nanodomains. The transition to bicontinuous aggregates is in the concentration range of 1 mol L-1. The sulfonate group of the head groups (placed at the water interface of worm-like aggregates) rather than the aggregate-aggregate interaction is responsible for the unusual small angle X-ray scattering pattern.
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Affiliation(s)
- Simon Stemplinger
- ICSM, CEA, CNRS, Univ Montpellier, ENSCM, Marcoule, France.,Institut für Physikalische und Theoretische Chemie, Universität Regensburg, Regensburg, Germany.
| | - Jérémy Causse
- ICSM, CEA, CNRS, Univ Montpellier, ENSCM, Marcoule, France
| | | | | | - Thomas Zemb
- ICSM, CEA, CNRS, Univ Montpellier, ENSCM, Marcoule, France
| | - Dominik Horinek
- Institut für Physikalische und Theoretische Chemie, Universität Regensburg, Regensburg, Germany.
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40
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Abstract
The ongoing coronavirus disease 2019 (COVID-19) pandemic demonstrates the threat posed by novel coronaviruses to human health. Coronaviruses share a highly conserved cell entry mechanism mediated by the spike protein, the sole product of the S gene. The structural dynamics by which the spike protein orchestrates infection illuminate how antibodies neutralize virions and how S mutations contribute to viral fitness. Here, we review the process by which spike engages its proteinaceous receptor, angiotensin converting enzyme 2 (ACE2), and how host proteases prime and subsequently enable efficient membrane fusion between virions and target cells. We highlight mutations common among severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern and discuss implications for cell entry. Ultimately, we provide a model by which sarbecoviruses are activated for fusion competency and offer a framework for understanding the interplay between humoral immunity and the molecular evolution of the SARS-CoV-2 Spike. In particular, we emphasize the relevance of the Canyon Hypothesis (M. G. Rossmann, J Biol Chem 264:14587-14590, 1989) for understanding evolutionary trajectories of viral entry proteins during sustained intraspecies transmission of a novel viral pathogen.
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Affiliation(s)
- Kyle A. Wolf
- Department of Pharmaceutical Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Interdiscipinary Ph.D. Program in Structural and Computational Biology and Quantitative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Jason C. Kwan
- Department of Pharmaceutical Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Jeremy P. Kamil
- Department of Microbiology and Immunology, Louisiana State University Health Shreveport, Shreveport, Louisiana, USA
- Center for Excellence in Emerging Viral Threats, Louisiana State University Health Shreveport, Shreveport, Louisiana, USA
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41
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Nguyen CV, Peng M, Duignan TT, Nguyen AV. Salting-Up of Surfactants at the Surface of Saline Water as Detected by Tensiometry and SFG and Supported by Molecular Dynamics Simulation. J Phys Chem B 2022; 126:1063-1075. [PMID: 35103476 DOI: 10.1021/acs.jpcb.1c08114] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Surfactant adsorption at the air-water interface is critical to many industrial processes but its dependence on salt ions is still poorly understood. Here, we investigate the adsorption of sodium dodecanoate onto the air-water interface using model saline waters of Li+ or Cs+ at pH values 8 and 11. Both cations enhance the surfactant adsorption, as expected, but their largest effects on the adsorption also depend on pH. Specifically, surface tension measurements, sum-frequency generation spectroscopy, and microelectrophoresis show that small (hard) Li+ enhances the surfactant adsorption more than large (soft) Cs+ at pH 11. This effect is fully reversed at pH 8. We argue that this salting-up (increasing adsorption) reversal is attributable to the conversion of the neutralized carboxylic (-COOH) headgroup at pH 8 into the charged carboxylate (-COO-) headgroup at pH 11, which, respectively, interact with Cs+ and Li+ favorably. Molecular dynamics simulation shows that the affinity of Cs+ to the interface is decreased and eventually overtaken by Li+ as the carboxylic groups are deprotonated. This study highlights the importance of the charge and size of salt ions in selecting surfactants and electrolytes for industrial applications.
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Affiliation(s)
- Cuong V Nguyen
- School of Chemical Engineering and ARC Centre of Excellence for Enabling Eco-Efficient Beneficiation of Minerals (UQ Node), The University of Queensland, Brisbane, QLD 4072, Australia
| | - Mengsu Peng
- School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Timothy T Duignan
- School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Anh V Nguyen
- School of Chemical Engineering and ARC Centre of Excellence for Enabling Eco-Efficient Beneficiation of Minerals (UQ Node), The University of Queensland, Brisbane, QLD 4072, Australia
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42
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Blahnik J, Müller E, Braun L, Denk P, Kunz W. Nanoscopic microheterogeneities or pseudo-phase separations in non-conventional liquids. Curr Opin Colloid Interface Sci 2022. [DOI: 10.1016/j.cocis.2021.101535] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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43
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Judd KD, Gonzalez NM, Yang T, Cremer PS. Contact Ion Pair Formation Is Not Necessarily Stronger than Solvent Shared Ion Pairing. J Phys Chem Lett 2022; 13:923-930. [PMID: 35050629 DOI: 10.1021/acs.jpclett.1c03576] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Vibrational sum frequency spectroscopy (VSFS) and pressure-area Langmuir trough measurements were used to investigate the binding of alkali metal cations to eicosyl sulfate (ESO4) surfactants in monolayers at the air/water interface. The number density of sulfate groups could be tuned by mixing the anionic surfactant with eicosanol. The equilibrium dissociation constant for K+ to the fatty sulfate interface showed 10 times greater affinity than for Li+ and approximately 3 times greater than for Na+. All three cations formed solvent shared ion pairs when the mole fraction of ESO4 was 0.33 or lower. Above this threshold charge density, Li+ formed contact ion pairs with the sulfate headgroups, presumably via bridging structures. By contrast, K+ only bound to the sulfate moieties in solvent shared ion pairing configurations. The behavior for Na+ was intermediate. These results demonstrate that there is not necessarily a correlation between contact ion pair formation and stronger binding affinity.
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Affiliation(s)
- Kenneth D Judd
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Nicole M Gonzalez
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Tinglu Yang
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Paul S Cremer
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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44
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Williams ES, Gneid H, Marshall SR, González MJ, Mandelbaum JA, Busschaert N. A supramolecular host for phosphatidylglycerol (PG) lipids with antibacterial activity. Org Biomol Chem 2021; 20:5958-5966. [PMID: 34935024 DOI: 10.1039/d1ob02298a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Lipids fulfill a variety of important physiological functions, such as energy storage, providing a hydrophobic barrier, and signal transduction. Despite this plethora of biological roles, lipids are rarely considered a potential target for medical applications. Here, we report a set of neutral small molecules that contain boronic acid and urea functionalities to selectively recognize the bacterial lipid phosphatidylglycerol (PG). The affinity and selectivity was determined using 1H NMR titrations and a liposome-based Alizarin Red S assay. Minimum inhibitory concentrations (MIC) were determined to assess antibacterial activity. The most potent compounds display an association constant with PG in liposomes of at least 5 × 103 M-1, function as antibacterial agents against Gram-positive bacteria (MIC = 12.5-25 μM), and show little hemolytic activity. Mode of action studies suggest that the boronic acids bind to the headgroup of the PG lipids, which leads to a change in membrane fluidity and ultimately causes membrane depolarization and cell death.
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Affiliation(s)
- Elliot S Williams
- Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, USA.
| | - Hassan Gneid
- Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, USA.
| | - Sarah R Marshall
- Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, USA.
| | - Mario J González
- Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, USA.
| | - Jorgi A Mandelbaum
- Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, USA.
| | - Nathalie Busschaert
- Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, USA.
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45
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Simple formulas for prediction of the sizes of worm-like and globular micelles in symmetrical electrolyte solutions. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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46
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Zhang B, Tang H, Shen Y, Zhang B, Liu G, Shi W. Comparative analysis of membrane fouling mechanisms induced by colloidal polymer: Effects of sodium and calcium ions. J Colloid Interface Sci 2021; 608:780-791. [PMID: 34689110 DOI: 10.1016/j.jcis.2021.10.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/03/2021] [Accepted: 10/10/2021] [Indexed: 11/15/2022]
Abstract
Polymer (anionic polyacrylamide, APAM) flooding produced wastewater has a relatively high degree of mineralization and abundant ionic species. A comprehensive and systematic investigation of the influence of ion identity on APAM-induced membrane fouling is extremely necessary but has not been conducted to date. A comparative investigation was performed herein to reveal the underlying mechanisms of the influence of Na+ and Ca2+ (1000 mg/L) on APAM-induced membrane fouling in the adsorption and microfiltration (MF) processes. Na+ and Ca2+ exhibited contrasting influences on the filtration efficiency, cleaning efficiency, and fouling resistance. Compared to Na+, Ca2+ promoted reversible fouling and the formation of a loose cake layer; moreover, a higher removal rate and flux recovery were achieved. Additionally, simulations based on adsorption kinetic and membrane fouling models, and a series of microscopic analyses were performed to validate the contradictory influences. During the APAM-based MF process, the membrane fouling was effectively mitigated at the applied ionic strength because of the stronger hydration repulsive force generated by hydrated Ca2+ compared to that by Na+. This study provides vital guidance for membrane fouling control in the microfiltration of polymer flooding produced wastewater.
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Affiliation(s)
- Bing Zhang
- National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing 400067, China
| | - Heli Tang
- National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing 400067, China
| | - Yu Shen
- National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing 400067, China; Chongqing South-to-Thais Environmental Protection Technology Research Institute Co., Ltd., Chongqing 400060, China
| | - Bing Zhang
- School of Environmental and Ecology, Chongqing University, Chongqing 400044, China.
| | - Guicai Liu
- School of Civil Engineering and Architecture, University of Jinan, Jinan 50022, China.
| | - Wenxin Shi
- School of Environmental and Ecology, Chongqing University, Chongqing 400044, China
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47
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Vu T, Koenig P, Weaver M, Hutton HD, Kasting GB. Effects of cationic counterions and surfactant on viscosity of an amino acid-based surfactant system. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127040] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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48
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Influence of inorganic and organic counter-cations on the surface properties and self-assembly of cyclic lipopeptide surfactin. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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49
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Thermo-acoustic, spectroscopic, and electrochemical investigation of sparfloxacin–ionic surfactant interactions. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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50
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Jin SA, Khan SA, Spontak RJ, Rojas OJ. Anion-Specific Water Interactions with Nanochitin: Donnan and Osmotic Pressure Effects as Revealed by Quartz Microgravimetry. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:11242-11250. [PMID: 34520662 PMCID: PMC8516332 DOI: 10.1021/acs.langmuir.1c01585] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The development of new materials emphasizes greater use of sustainable and eco-friendly resources, including those that take advantage of the unique properties of nanopolysaccharides. Advances in this area, however, necessarily require a thorough understanding of interactions with water. Our contribution to this important topic pertains to the swelling behavior of partially deacetylated nanochitin (NCh), which has been studied here by quartz crystal microgravimetry. Ultrathin films of NCh supported on gold-coated resonators have been equilibrated in aqueous electrolyte solutions (containing NaF, NaCl, NaBr, NaNO3, Na2SO4, Na2SO3, or Na3PO4) at different ionic strengths. As anticipated, NCh displays contrasting swelling/deswelling responses, depending on the ionic affinities and valences of the counterions. The extent of water uptake induced by halide anions, for instance, follows a modified Hofmeister series with F- producing the highest swelling. In marked contrast, Cl- induces film dehydration. We conclude that larger anions promote deswelling such that water losses increase with increasing anion valence. Results such as the ones reported here are critical to ongoing efforts designed to dry chitin nanomaterials and develop bio-based and sustainable materials, including particles, films, coatings, and other nanostructured assemblies, for various devices and applications.
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Affiliation(s)
- Soo-Ah Jin
- Department
of Chemical & Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Saad A. Khan
- Department
of Chemical & Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Richard J. Spontak
- Department
of Chemical & Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
- Department
of Materials Science & Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Orlando J. Rojas
- Department
of Chemical & Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
- Bioproducts
Institute, Departments of Chemical & Biological Engineering, Chemistry and Wood Science University of British Columbia, Vancouver V6T 1Z3, Canada
- Department
of Bioproducts and Biosystems, Aalto University, Espoo 02150, Finland
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