A room temperature dissolution solvent and its mechanism for natural biopolymers: hydrogen bonding interaction investigation

Tong, Zhihan; Zeng, Suqing; Tang, Hongying; Wang, Wen; Sun, Yaxu; Xia, Qinqin; Yu, Haipeng

doi:10.1039/d3gc01098h

Cited by 19 publications

(11 citation statements)

References 38 publications

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“…The main component of fabrics is viscose fiber, which consists of cellulose. Due to the presence of a large number of carboxyl and hydroxyl groups on the cellulose as well as amino groups on the surface of the ZnO NPs, hydrogen bonds are formed between the ZnO NPs and cellulose. − At the same time, since ZnO NPs are cationic in water, cellulose is negatively charged due to the presence of carboxyl and hydroxyl groups.…”

Section: Resultsmentioning

confidence: 99%

“…After treatment with ZnO NPs or antibacterial fabrics, the bacteria were fixed with 2.5% glutaraldehyde for 24 h at 4 °C. Then, the bacteria were washed with sterile water and sequentially dehydrated with different concentrations of alcohol (20,40,60,80, and 100%, 15 min each time). Subsequently, the bacteria were dried, and the morphology of bacterial cells was observed by SEM.…”

Section: Synthesis Of Hydrophilic Zno Npsmentioning

confidence: 99%

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Engineering Sizable and Broad-Spectrum Antibacterial Fabrics through Hydrogen Bonding Interaction and Electrostatic Interaction

Wang,

Zhao,

et al. 2024

ACS Appl. Mater. Interfaces

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Long-lasting and highly efficient antibacterial fabrics play a key role in public health occurrences caused by bacterial and viral infections. However, the production of antibacterial fabrics with a large size, highly efficient, and broad-spectrum antibacterial performance remains a great challenge due to the complex processes. Herein, we demonstrate sizable and highly efficient antibacterial fabrics through hydrogen bonding interaction and electrostatic interaction between surface groups of ZnO nanoparticles and fabric fibers. The production process can be carried out at room temperature and achieve a production rate of 300 × 1 m 2 within 1 h. Under both visible light and dark conditions, the bactericidal rate against Gram-positive (S. aureus), Gram-negative (E. coli), and multidrugresistant (MRSA) bacteria can reach an impressive 99.99%. Furthermore, the fabricated ZnO nanoparticle-decorated antibacterial fabrics (ZnO@fabric) show high stability and long-lasting antibacterial performance, making them easy to develop into variable antibacterial blocks for protection suits.

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Section: Resultsmentioning

confidence: 99%

Section: Synthesis Of Hydrophilic Zno Npsmentioning

confidence: 99%

Engineering Sizable and Broad-Spectrum Antibacterial Fabrics through Hydrogen Bonding Interaction and Electrostatic Interaction

Wang,

Zhao,

et al. 2024

ACS Appl. Mater. Interfaces

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“…This suggests that the polymeric nature of the host molecule (PL or PA) is crucial for the desired spectral response (Figure a). The polymeric backbone with a large number of interaction sites facilitates the effective aggregation of anionic dye molecules through both electrostatic and hydrogen-bonding interactions. , The fluorescence anisotropy values of PTCA were estimated before and after addition of PA. In the presence of PA, the anisotropy value increased significantly, which indicated a relatively rigid microenvironment around the probe molecules in the composite state (Figure S2).…”

Section: Resultsmentioning

confidence: 99%

Biogenic Polymer-Based Fluorescent Assemblies: Versatile Platforms for Ultrasensitive ATP Detection and Enzyme Assay

Mondal,

Dey

2024

Langmuir

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Here, we investigated the optical properties of biocompatible supramolecular assemblies formed through electrostatic interactions between anionic fluorescent dyes and biogenic polymers. The dynamic equilibrium between the monomeric form (fluorescent) and aggregates (nonfluorescent) of dye molecules is responsible for the stimuli-responsive behavior of these polymer composites, which can respond to changes in pH, temperature, and ionic strength. Furthermore, we employed supramolecular assemblies for the purpose of turn-on fluorescence sensing of adenosine triphosphate (ATP) at physiological pH. Notably, no interference was observed even in the presence of well-known competing analytes such as pyrophosphate. In addition to its outstanding selectivity, the present system can detect ATP at concentrations as low as 4.8 nM. The superior detection capabilities are achieved through multiple interactions with biogenic polymers, involving the adenine ring, ribose unit (through hydrogen bonding), and phosphate groups (via charge pairing) of ATP. Given the remarkable sensitivity to ATP, we have applied the present system for the detection of a dephosphorylating enzyme, alkaline phosphatase.

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“…The poor solubility of SF and cellulose in conventional organic solvents mostly results from inter- and intramolecular noncovalent interactions, including hydrogen bonding and hydrophobic forces . Hydrogen bonding interactions are found to be mainly OH---O in cellulose and CO---HN and CO---HO in SF, and cellulose chains (−18.28 kcal mol –1 ) are found to have stronger binding energies compared to SF chains (−4.87∼7.27 kcal mol –1 ) . Thus, cellobiose was employed as a model for cellulose, and 13 C NMR analysis of [DBNH][Mea] and cellobiose/[DBNH][Mea] were studied to gain a more comprehensive insight into the hydrogen bonding interaction (Figure a).…”

Section: Resultsmentioning

confidence: 99%

“…58 Hydrogen bonding interactions are found to be mainly OH---O in cellulose and C�O---HN and C�O---HO in SF, and cellulose chains (−18.28 kcal mol −1 ) are found to have stronger binding energies compared to SF chains (−4.87∼7.27 kcal mol −1 ). 59 Thus, cellobiose was employed as a model for cellulose, and 13 anion interacted with the cellobiose through hydrogen bonding. 45 The [DBNH] cation is a strong hydrogen bond donor, interacting with oxygen atoms in cellulose and SF amino acid chain residues.…”

Section: ■ Introductionmentioning

confidence: 99%

Molecularly Engineer Protic Ionic Liquids for Simultaneous Dissolution of Silk Fibroin/Cellulose and Wet-Spinning Composite Fibers Preparation through Hydrogen-Bonding-Acceptor-Strengthening Strategy

Chen,

Zhang,

Guo

et al. 2024

ACS Sustainable Chem. Eng.

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With over 20 years of continued development of ionic liquids (ILs) for natural polymer processing and conversion, the design and facile preparation of ILs is still a hot research topic. In this study, a hydrogen bonding acceptor strengthening strategy was applied to design ether functionalized protic ILs, which were synthesized by a solvent-free neutralization reaction of methoxyacetic acid (Mea) and 1,5-diazabicyclo [4.3.0]-5-nonene (DBN). The ether-functionalized protic ILs ([DBNH][Mea]) were identified as a satisfactory solvent for the simultaneous dissolution of silk fibroin (SF) and cellulose at mild conditions, thus delivering a new dissolution processing platform toward value-added SF-based regenerated fiber materials. The strengthened simultaneous dissolution mechanism of SF and cellulose in [DBNH][Mea] by the introduction of an ether structure moiety in the anion was experimentally and computationally verified, and the results indicated that the ether structure moiety endowed it with more hydrogen-bonding acceptor sites, thus presenting stronger hydrogen-bonding disruption ability and outstanding solubility to SF and cellulose under mild conditions. Rheological study of the SF/cellulose/[DBNH][Mea]/DMSO solutions was conducted systematically, and the correlations between apparent viscosity (η), activation energy (Εη), overlap concentration (c*), structural viscosity index (Δη), storage modulus (G′) and loss modulus (G′′) of the solutions were highly correlated to the mass ratio of SF to cellulose. A series of SF/cellulose composite fibers were prepared by wet spinning using ethanol as the coagulation bath, and the obtained composite fibers were analyzed by Fourier transform infrared (FTIR), X-ray diffraction (XRD), elemental analysis, thermogravimetric analysis (TGA) and scanning electron microscopy (SEM) and mechanical tests. It was found that the composite fibers had high compatibility and the postdrafting technique is beneficial for enhancing the mechanical robustness.

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A room temperature dissolution solvent and its mechanism for natural biopolymers: hydrogen bonding interaction investigation

Abstract: Hydrogen bonds (HBs) are vital construction fundamentals of natural biopolymers. Investigating the hydrogen bonding interactions of biopolymers is crucial for the conformation, transformation, and construction of their functional materials. In...

Cited by 19 publications

References 38 publications

Engineering Sizable and Broad-Spectrum Antibacterial Fabrics through Hydrogen Bonding Interaction and Electrostatic Interaction

Engineering Sizable and Broad-Spectrum Antibacterial Fabrics through Hydrogen Bonding Interaction and Electrostatic Interaction

Biogenic Polymer-Based Fluorescent Assemblies: Versatile Platforms for Ultrasensitive ATP Detection and Enzyme Assay

Molecularly Engineer Protic Ionic Liquids for Simultaneous Dissolution of Silk Fibroin/Cellulose and Wet-Spinning Composite Fibers Preparation through Hydrogen-Bonding-Acceptor-Strengthening Strategy

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