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Qin D, Ma Y, Wang M, Shan Z. Study on Nutrient Carrier of Mulch Based on Hydrogel @SiO 2. Polymers (Basel) 2024; 16:1442. [PMID: 38794635 PMCID: PMC11124839 DOI: 10.3390/polym16101442] [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: 02/28/2024] [Revised: 04/21/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
Soil conservation is one of the best methods to improve soil fertility and enhance crop growth efficiency. Replacing plastic mulch with biomass is an environmentally friendly strategy. Innovative encapsulated soil granules (ESGs) were developed using PVA/PC film as the wall material and rural soil as the core. The PVA/PC was synthesized using 60% protein polypeptide (PC) from leather waste scrap and 35% poly (vinyl alcohol) (PVA), which was optimized for water absorption expansion and water retention performance. The ESG-10 granulated with 10% PVA/PC exhibited good water absorption, moisture retention, and resistance to water solubility. As an auxiliary material for soil improvement, the amount of ESGs mixed with the topsoil at ratios of 0 g/m2, 200 g/m2, and 400 g/m2 was proportional to the soil insulation and moisture retention. In rapeseed cultivation, the experimental results indicated that the soil mulched with ESG-10 can maintain seedling vitality for a long time under low water content conditions.
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Affiliation(s)
- Dan Qin
- School of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China; (D.Q.); (Y.M.)
| | - Yujie Ma
- School of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China; (D.Q.); (Y.M.)
| | - Mei Wang
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China;
| | - Zhihua Shan
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China;
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2
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Iaccheri E, Cevoli C, Ragni L, Rosa MD, Fabbri A. Physical Stability of Frozen Eggplant: Emphasis on State Diagram, Sorption, Thermal, Mechanical, and Dielectric Properties. FOOD BIOPROCESS TECH 2023. [DOI: 10.1007/s11947-023-03017-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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3
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Tousignant MN, Lin ZS, Brusso J, Lessard BH. Interfacial Ultraviolet Cross-Linking of Green Bilayer Dielectrics. ACS APPLIED MATERIALS & INTERFACES 2023; 15:3680-3688. [PMID: 36603855 DOI: 10.1021/acsami.2c21412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Electronic waste is a growing challenge which needs to be addressed through the integration of high-performance sustainable materials. Green dielectric polymers such as poly(vinyl alcohol) (PVA) have favorable electrical properties but are challenging to integrate into thin film electronics due to their physical properties. For example, PVA suffers from poor film formation and is hygroscopic. Bilayer dielectrics with interfacial cross-linking can enable the use of high-performance PVA with favorable surface chemistry by using a hydrophobic poly(caprolactone) (PCL) layer. In this study, we developed a benzodioxinone-terminated PCL layer, which can be UV cross-linked to the hydroxy groups of the PVA dielectric. This air-stable UV-cross-linking PCL dielectric was able to effectively cross-link with PVA, leading to high-performance capacitors and single-walled carbon nanotube-based thin film transistors. This UV cross-linking PCL dielectric led to significant improvements in shelf-life, ease of processing, and similar device performance compared to our previously reported thermally cross-linking PCL layer. The UV cross-linking at the interface between these bilayers can allow for the integration of high-speed roll-to-roll processing, which enables low-cost, sustainable, and high-performance electronics.
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Affiliation(s)
- Mathieu N Tousignant
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, OntarioK1N 6N5, Canada
| | - Zheng Sonia Lin
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, OntarioK1N 6N5, Canada
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, OntarioK1N 6N5, Canada
| | - Jaclyn Brusso
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, OntarioK1N 6N5, Canada
| | - Benoît H Lessard
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, OntarioK1N 6N5, Canada
- School of Electrical Engineering and Computer Science, University of Ottawa, 800 King Edward Avenue, Ottawa, OntarioK1N 6N5, Canada
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Mahmud M, Rahman AFMM, Salem KS, Bari ML, Qiu H. Architecting Ultrathin Graphitic C 3N 4 Nanosheets Incorporated PVA/Gelatin Bionanocomposite for Potential Biomedical Application: Effect on Drug Delivery, Release Kinetics, and Antibacterial Activity. ACS APPLIED BIO MATERIALS 2022; 5:5126-5139. [PMID: 36259919 DOI: 10.1021/acsabm.2c00502] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Planar (2D) nanomaterials are garnering broad recognition in diverse scientific areas because of their intrinsic features. Herein, bulk graphitic carbon nitride (g-C3N4) was prepared from melamine, which was exfoliated to produce g-C3N4 nanosheets. The prepared g-C3N4 nanosheets were characterized by transmission electron microscopy (TEM), atomic force microscopy (AFM), photo luminescence (PL) spectroscopy, and dynamic light scattering (DLS). The stable dispersion of a g-C3N4 nanosheet was incorporated into a PVA/Gelatin matrix to explore its efficacy as a promising drug carrier. A remarkable 42% increase in tensile strength for 1% g-C3N4/PVA/Gelatin was attained compared with that of the PVA/Gelatin film. Thermal stability increased due to addition of g-C3N4 nanosheet in the PVA/Gelatin film, where the maximum thermal degradation temperature increased by 9.5 °C when the 1% nanosheet was added to the PVA/Gelatin film. Moreover, the g-C3N4 nanosheets and g-C3N4/PVA/Gelatin showed no cytotoxicity against HeLa and BHK-21 cells. To investigate the in vitro drug releasing efficacy, ciprofloxacin was incorporated into g-C3N4/PVA/Gelatin. Experimental results showed a 62% drug release within 120 min at physiological pH 7.4. The data was curve fitted by different kinetic models of drug release to understand the drug release mechanism. The experimental data was found to fit best with the Higuchi model and revealed the diffusion control mechanism of drug release. Additionally, antibacterial study confirmed the drug release potency from g-C3N4/PVA/Gelatin film on both Gram-positive and Gram-negative bacteria. The above-mentioned promising findings might lead to an opportunity of using g-C3N4 as a potential drug carrier.
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Affiliation(s)
- Monika Mahmud
- Department of Applied Chemistry and Chemical Engineering, University of Dhaka, Dhaka1000, Bangladesh.,Institute of Glass and Ceramic Research & Testing, Bangladesh Council of Scientific and Industrial Research, Dhaka1205, Bangladesh
| | - A F M Mustafizur Rahman
- Department of Applied Chemistry and Chemical Engineering, University of Dhaka, Dhaka1000, Bangladesh
| | - Khandoker Samaher Salem
- Department of Applied Chemistry and Chemical Engineering, University of Dhaka, Dhaka1000, Bangladesh.,Department of Forest Biomaterials, North Carolina State University, Raleigh, North Carolina27607, United States
| | - Md Latiful Bari
- Center for Advanced Research of Sciences (CARS), University of Dhaka, Dhaka1000, Bangladesh
| | - Hongdeng Qiu
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou730000, China
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5
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Nguyen TT, Kim SH, Bui QTP, Thuc CNH. Ecofriendly Active Poly(vinyl alcohol)/Agarose/D‐glucose/
Piper Betle
Linn. Leaf Extract Films as Potential Packaging Materials. ChemistrySelect 2022. [DOI: 10.1002/slct.202200909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Thuong Thi Nguyen
- Faculty of Chemistry University of Science Ho Chi Minh City 72800 Vietnam Vietnam National University Ho Chi Minh City, 71300, Vietnam Institute of Technology Application and Sustainable Development Nguyen Tat Thanh University Ho Chi Minh City 71516 Vietnam
| | - Sang Hoon Kim
- Materials Architecturing Research Center Korea Institute of Science and Technology Seoul 02792 Republic of Korea Division of Nano & Information Technology in KIST School University of Science and Technology Daejeon 34113, Republic of Korea
| | - Quynh Thi Phuong Bui
- Faculty of Chemical Engineering Ho Chi Minh City University of Food Industry Ho Chi Minh City 72000 Vietnam
| | - C. N. Ha Thuc
- Faculty of Materials Science and Technology University of Science Ho Chi Minh, 72800, Vietnam Vietnam National University Ho Chi Minh City 71300 Vietnam
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Liu L, Chen L. Characteristic Analysis of a Chipless RFID Sensor Based on Multi-Parameter Sensing and an Intelligent Detection Method. SENSORS (BASEL, SWITZERLAND) 2022; 22:6027. [PMID: 36015786 PMCID: PMC9412652 DOI: 10.3390/s22166027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/06/2022] [Accepted: 08/09/2022] [Indexed: 06/15/2023]
Abstract
Chipless radio frequency identification (RFID) technology has been widely used in the field of structural health monitoring (SHM), but most of the current research mainly focuses on the detection of mechanical properties and there are few studies on the multi-physical parameters (for example, temperature and humidity) in the climatic environment around the structure. Thus, it is necessary to design a small and compact sensor for multi-parameter detection. This paper proposes a multi-parameter chipless RFID sensor based on microstrip coupling, which supports 4-bit ID code and integrates two detection functions of temperature and humidity. Through linear normalization fitting, the sensitivity of the sensor is about 2.18 MHz/RH in the ambient relative humidity test and the sensitivity of the sensor is about 898.63 KHz/°C in the experimental test of water bath heating from 24.6 °C to 75 °C. In addition, this paper proposes an engineering application detection method, designs a lightweight dynamic spectrum detection and wireless transmission platform based on a lightweight vector network analyzer (VNA) and realizes the real-time extraction and transmission of RFID spectrum sensing data. The means are more flexible and economical than traditional experimental scenarios.
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Affiliation(s)
- Luyi Liu
- Department of Electrical and Electronic Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Lan Chen
- Department of Electrical and Electronic Engineering, Shanghai Institute of Technology, Shanghai 201418, China
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Mitani E, Ozaki Y, Sato H. Two types of C O⋯HO hydrogen bonds and OH⋯OH (dimer, trimer, oligomer) hydrogen bonds in PVA with 88% saponification/PMMA and PVA with 99% saponification/PMMA blends and their thermal behavior studied by infrared spectroscopy. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124725] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Molecular diffusion in ternary poly(vinyl alcohol) solutions. Front Chem Sci Eng 2021. [DOI: 10.1007/s11705-021-2121-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AbstractThe diffusion kinetics of a molecular probe—rhodamine B—in ternary aqueous solutions containing poly(vinyl alcohol), glycerol, and surfactants was investigated using fluorescence correlation spectroscopy and dynamic light scattering. We show that the diffusion characteristics of rhodamine B in such complex systems is determined by a synergistic effect of molecular crowding and intermolecular interactions between chemical species. The presence of glycerol has no noticeable impact on rhodamine B diffusion at low concentration, but significantly slows down the diffusion of rhodamine B above 3.9% (w/v) due to a dominating steric inhibition effect. Furthermore, introducing surfactants (cationic/nonionic/anionic) to the system results in a decreased diffusion coefficient of the molecular probe. In solutions containing nonionic surfactant, this can be explained by an increased crowding effect. For ternary poly(vinyl alcohol) solutions containing cationic or anionic surfactant, surfactant—polymer and surfactant—rhodamine B interactions alongside the crowding effect of the molecules slow down the overall diffusivity of rhodamine B. The results advance our insight of molecular migration in a broad range of industrial complex formulations that incorporate multiple compounds, and highlight the importance of selecting the appropriate additives and surfactants in formulated products.
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Haghighi H, Gullo M, La China S, Pfeifer F, Siesler HW, Licciardello F, Pulvirenti A. Characterization of bio-nanocomposite films based on gelatin/polyvinyl alcohol blend reinforced with bacterial cellulose nanowhiskers for food packaging applications. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106454] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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10
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Hubner P, Marcilio NR, Tessaro IC. Gelatin/poly(vinyl alcohol) based hydrogel film - A potential biomaterial for wound dressing: Experimental design and optimization followed by rotatable central composite design. J Biomater Appl 2021; 36:682-700. [PMID: 33557668 DOI: 10.1177/0885328221992260] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The development of hydrogel films for biomedical applications is interesting due to their characteristics. Hydrogel films based on gelatin and poly(vinyl alcohol) (PVA) are developed and characterized using a rotatable central composite design. The optimized hydrogel film is obtained by the function desirability of the Statistica® software and is also characterized by swelling kinetics, oxygen permeability, adhesiveness, TGA, DSC, and XRD. The results of the experimental design show that gelatin and PVA concentrations have a significant influence on the response variables, and the exposure doses to UV light show no significant effect. The optimized hydrogel film is elastic, presents good mechanical resistance and swelling capacity in water and exudate solution, is permeable to oxygen, and is capable of adjusting itself and maintains contact close to the skin. In this way, considering all the properties evaluated, the optimized film has characteristics suitable for biomedical applications as wound dressings.
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Affiliation(s)
- Patricia Hubner
- 28124Universidade Federal do Rio Grande do Sul (UFRGS), Chemical Engineering Department (DEQUI), Porto Alegre, Rio Grande do Sul, Brazil
| | - Nilson Romeu Marcilio
- 28124Universidade Federal do Rio Grande do Sul (UFRGS), Chemical Engineering Department (DEQUI), Porto Alegre, Rio Grande do Sul, Brazil
| | - Isabel Cristina Tessaro
- 28124Universidade Federal do Rio Grande do Sul (UFRGS), Chemical Engineering Department (DEQUI), Porto Alegre, Rio Grande do Sul, Brazil
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11
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Ni F, Wang G, Zhao H. The effects of urea and caprolactam on the molecular mechanisms and elastic modulus of polyvinyl alcohol (PVA): A molecular dynamics simulation study. J Mech Behav Biomed Mater 2018; 87:10-18. [DOI: 10.1016/j.jmbbm.2018.06.043] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 05/12/2018] [Accepted: 06/26/2018] [Indexed: 11/24/2022]
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12
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Formulation of olanzapine nanosuspension based orally disintegrating tablets (ODT); comparative evaluation of lyophilization and electrospraying process as solidification techniques. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2018.05.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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13
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Development of a capacitance sensing system for monitoring moisture content of spray dried gelatin powders. J FOOD ENG 2017. [DOI: 10.1016/j.jfoodeng.2016.10.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Bertoldo M, Coltelli MB, Messina T, Bronco S, Castelvetro V. Emulsion Blending Approach for the Preparation of Gelatin/Poly(butylene succinate-co-adipate) Films. ACS Biomater Sci Eng 2016; 2:677-686. [DOI: 10.1021/acsbiomaterials.6b00050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Monica Bertoldo
- Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche (IPCF-CNR), Area della
Ricerca, Via G. Moruzzi 1, I-56124 Pisa, Italy
| | - Maria-Beatrice Coltelli
- Dipartimento
di Ingegneria Civile e Industriale, Università di Pisa, Largo L. Lazzarino
1, 56122 Pisa, Italy
| | - Tiziana Messina
- Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche (IPCF-CNR), Area della
Ricerca, Via G. Moruzzi 1, I-56124 Pisa, Italy
- Dipartimento
di Chimica e Chimica Industriale, Università di Pisa, via G. Moruzzi,
13, 56124 Pisa, Italy
| | - Simona Bronco
- Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche (IPCF-CNR), Area della
Ricerca, Via G. Moruzzi 1, I-56124 Pisa, Italy
| | - Valter Castelvetro
- Dipartimento
di Chimica e Chimica Industriale, Università di Pisa, via G. Moruzzi,
13, 56124 Pisa, Italy
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