Cellulose最新文献

{"title":"Tailoring carboxymethyl cellulose-based food packaging films blended with polyvinyl alcohol and nano-MMT for enhanced performance and shelf life","authors":"Hadis Yousefi,&nbsp;Mohammad Fasihi,&nbsp;Sajad Rasouli","doi":"10.1007/s10570-024-06281-1","DOIUrl":"10.1007/s10570-024-06281-1","url":null,"abstract":"<div><p>This study investigated the impact of glycerin plasticization, polyvinyl alcohol (PVA) and nano-montmorillonite (MMT) compounding, and organic acid cross-linking agent on the mechanical, microstructural, crystallinity, water absorption, and thermal characteristics of carboxymethyl cellulose (CMC)-based films. The developed manufacturing technique resulted in substantial improvements in the film's tensile strength and Young's modulus, which increased by 240% and 840%, respectively. However, there was a 27% reduction in elongation at break. Scanning electron microscopy revealed that the optimal MMT concentration, which prevented agglomeration within the polymer matrix, was 4 wt.%. Evaluations of hydrophilicity/hydrophobicity demonstrated a 24% reduction in moisture absorption and a 41% decrease in water vapor permeability for the CMC-based films. This reduction significantly lowered the solubility and swelling degree of the films by 63% and 93%, respectively. Notably, beyond a cross-linker concentration of 15 wt.%, this contribution diminished slightly. Thermal analysis indicated that glycerin reduced the film's glass transition temperature from 76.2 °C to 68.9 °C, while the addition of PVA and MMT increased this temperature by 22% and 53%, respectively. The optimal formulation for an effective food packaging film was identified as CMC/PVA/glycerin at a 1/1/2 ratio, with 4 wt.% MMT and 15 wt.% cross-linker. The resulting film demonstrated an improved shelf life for food products compared to polyethylene alternatives.</p><h3>Graphic abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 2","pages":"999 - 1015"},"PeriodicalIF":4.9,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Detection of pesticides in sprayed droplets by using biowaste-derived nanocellulose-based SERS nanosubstrate","authors":"Lynn R. Terry,&nbsp;Jacob W. Kruel,&nbsp;Manan Jain,&nbsp;Alison Lara,&nbsp;Priyanka Sharma,&nbsp;Benjamin S. Hsiao,&nbsp;Huiyuan Guo","doi":"10.1007/s10570-024-06271-3","DOIUrl":"10.1007/s10570-024-06271-3","url":null,"abstract":"<div><p>The increased demand for agricultural productivity to support the growing population has resulted in the expanded use of pesticides. However, modern pesticide applications contaminate air, water, soil, and unintentional target species. It is necessary to develop effective and sustainable methods to detect different pesticides within our environment. Surface-enhanced Raman spectroscopy (SERS) has garnered significant attention for its ability to detect and quantify environmental contaminants, as it is a rapid and sensitive technique that requires minimal sample preparation. The present study demonstrates the development of a biowaste-derived nanocellulose-based thin-film that, when integrated with gold nanoparticles, produces a sustainable and reproducible SERS nanosubstrate. In this study, three pesticides (carbaryl, ferbam, and thiabendazole) were sensitively and selectively detected by the combined use of this novel nanocellulose-based SERS nanosubstrate and a portable Raman instrument. The limits of detection were determined to be 1.34, 1.01, and 1.41 mg/L for carbaryl, ferbam, and thiabendazole, respectively, all of which are well below the agricultural application concentrations recommended. SERS signals were collected for both prepared ferbam spray solution and collected sprayed droplets, and it was found that there is no major difference in the signals, indicating that this detection method is reliable to detect pesticide droplets. A commercial pesticide was detectable by the biowaste-derived SERS nanosubstrate. This study is among the first to utilize biowaste-derived nanocellulose to create SERS nanosubstrate for pesticide detection in spray droplets. We demonstrate the high potential of biowaste-derived nanocellulose in combination with the portable Raman technique for agricultural pesticide spray detection.</p><h3>Graphical abstract</h3><p>\u0000(Image was created with BioRender.com.)</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"31 18","pages":"10915 - 10929"},"PeriodicalIF":4.9,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142753902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization of wheat bran nanocellulose and its application in low-fat emulsified sausage","authors":"Qiuhui Zhang,&nbsp;Jialong Shen,&nbsp;Gaoge Meng,&nbsp;Chang Liu,&nbsp;Han Wang,&nbsp;Qi Zhang,&nbsp;Chaozhi Zhu,&nbsp;Gaiming Zhao,&nbsp;Xiaopeng Wang","doi":"10.1007/s10570-024-06251-7","DOIUrl":"10.1007/s10570-024-06251-7","url":null,"abstract":"<div><p>In order to reduce the fat content in emulsified sausage products, wheat bran was used as raw material to prepare cellulose by formic acid hydrolysis, and nanocrystallization was carried out by oxalic acid combined with high-pressure technology. Afterward, nanocellulose was used as a solid particle-stabilized Pickering emulsion to replace fat and produce low-fat emulsified sausage. Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and thermal stability analysis showed that the prepared wheat bran nanocellulose was cellulose I with a crystallinity index of 73.36% and had good thermal stability (initial degradation temperature: 245.14 °C, maximum weight change temperature: 351.21 °C). When Pickering emulsion was used instead of fat in emulsified sausage, the theoretical heat and cooking loss of emulsified sausage decreased significantly with the fat substitute rate. However, the brightness, hardness, elasticity, cohesion, chewiness, and recoverability increased. This means that wheat bran nanocellulose stabilized Pickering emulsion is an ideal substitute for fat in emulsified sausage and can provide a theoretical basis for solving a series of health problems caused by eating large amounts of animal fat.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"31 18","pages":"11101 - 11114"},"PeriodicalIF":4.9,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142754342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable bleaching of Juton fabric with peracetic acid and bleach activators","authors":"Shekh Md Mamun Kabir,&nbsp;Md Monowar Hossen,&nbsp;Joonseok Koh,&nbsp;Md Kamrul Islam","doi":"10.1007/s10570-024-06272-2","DOIUrl":"10.1007/s10570-024-06272-2","url":null,"abstract":"<div><p>Sustainable bleaching of Juton (a Jute-Cotton blend) fabric with peracetic acid (PAA) and bleach activators was investigated. The whiteness effect of PAA can be enhanced by adding bleach activators such as tetraacetylethylenediamine (TAED) and sodium nonanoyloxybenzenesulfonate (NOBS). This study evaluated six distinct bleaching methods on Juton fabric: using only PAA, using PAA/TAED, using PAA/NOBS, using only H₂O₂ (HP), using HP/TAED, and using HP/NOBS. The Juton fabric was bleached at different temperatures, in various pHs, and for different durations, using PAA, HP, and their combinations with TAED and NOBS. FT-IR, XPS, and SEM analyses were conducted to examine the chemical structure, bonding, and surface morphology of the Juton fabrics following the bleaching process. Fabrics bleached with PAA in combination with NOBS exhibited enhanced whiteness, oxygen-to-carbon (O/C) ratios, and mechanical properties.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"31 18","pages":"11225 - 11242"},"PeriodicalIF":4.9,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142754341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adsorbent beads based on Fe-BTC@Chitosan/microcrystalline cellulose for simultaneous removal of sulfa drugs","authors":"Kaseb D. Alanazi,&nbsp;Basmah H. Alshammari,&nbsp;Fatmah M. Alkhatib,&nbsp;Kholood M. Alkhamis,&nbsp;Alaa M. Munshi,&nbsp;Amal H. Al-Bagawi,&nbsp;Amal H. Alsehli,&nbsp;Nashwa M. El-Metwaly","doi":"10.1007/s10570-024-06244-6","DOIUrl":"10.1007/s10570-024-06244-6","url":null,"abstract":"<div><p>Sulfa drugs are mostly used as antimicrobial regents for treatment of several infections. Sulfa drugs can easily be accumulated in the human cells and can be leached out to cause water pollution. Nowadays, the removal of sulfa drugs from polluted wastewater is of research interest. According to our knowledge, application of bead-based biopolymers and metal organic framework (MOF) in the removal of sulfa drugs has not been investigated. The novelty in the current approach is to exploit a composite of chitosan and MOF for removal of sulfa drugs. The approach synthesizes a composite bead that is based on Fe-benzenetricarboxylic acid (Fe-BTC) a superiorly applicable MOF, and the biopolymers chitosan (Chs) and microcrystalline cellulose (MCC) for removal of sulfa drugs. The present study interests in the efficient removal of two kinds of sulfa drugs (sulphanilamide and sulfamethazine) by using the currently prepared bead. Chitosan (Chs) and microcrystalline cellulose (MCC) were used as sources for the bead. The materials interacted together to obtain Fe-BTC@Chs/MCC bead. Fe-BTC was well-distributed over the networked structure of Chs/MCC and filled the pore structure. Adsorption of sulfa drugs onto the synthesized beads was well-fitted to the pseudo-second order and isothermally to Langmuir. The affinity of Fe-BTC@Chs/MCC bead toward sulfamethazine was notably higher than that of sulphanilamide. Adsorption capacity of sulfa drugs onto Fe-BTC@Chs/MCC bead was decreased by only 16.4–15.5% after five reuse cycles which declare the substantial stability during the regeneration process.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"31 18","pages":"11087 - 11100"},"PeriodicalIF":4.9,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142754343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nanocellulose with hydrophobic properties by a one-step TEMPO-periodate oxidation of citrus waste","authors":"Tiziano Facchinelli,&nbsp;Elvira D’Amato,&nbsp;Paolo Bettotti,&nbsp;Francesco Trenti,&nbsp;Graziano Guella,&nbsp;Ruben Bartali,&nbsp;Nadhira Bensaada Laidani,&nbsp;Giorgia Spigno,&nbsp;Marina Scarpa","doi":"10.1007/s10570-024-06259-z","DOIUrl":"10.1007/s10570-024-06259-z","url":null,"abstract":"<div><p>To turn food waste streams into valuable items, hydrophobic cellulose nanomaterial has been obtained from ground citrus waste by a one-step process performed in an aqueous solution at room temperature using mild concentrations of hypochlorite and periodate as primary oxidants and TEMPO as a reaction catalyst. Morphological characterization shows a cross-section and length of the nanofibers of the order of 3–5 nm and 1–2 µm, respectively, and some disordered regions with a propensity to chain entanglement. Chemical characterization confirms that the oxidized material has a cellulosic nature and that the native cellulose has been functionalized with the introduction of carboxylic groups. The mild reaction conditions preserve an organic fraction that is not mobilized during extensive aqueous washings and is composed mainly of saturated fatty acids. This fatty fraction is responsible for a slight hydrophobicity of nanocellulose which thus combines the propensity for network formation with water repellency and is suitable for the production of composites. As a representative case study, all-natural plastic films made of two polysaccharides, i.e. nanocellulose and starch, have been produced and characterized, proving that the citrus waste-recovered nanocellulose substantially improves the mechanical and water barrier properties of starch.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"31 18","pages":"10895 - 10913"},"PeriodicalIF":4.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142754316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Monitoring the formation of N-nitrosamines in lyocell plants-pitfalls and solutions","authors":"Sebastian Schoenauer,&nbsp;Christian Hager,&nbsp;Manuel Punz,&nbsp;Walter Milacher,&nbsp;Heidrun Fuchs,&nbsp;Thomas Roeder,&nbsp;Thomas Rosenau,&nbsp;Gerhard Eisenbrand","doi":"10.1007/s10570-024-06253-5","DOIUrl":"10.1007/s10570-024-06253-5","url":null,"abstract":"<div><p>In the lyocell process <i>N</i>-methylmorpholine <i>N</i>-oxide (NMMO) is used as a solvent to produce cellulosic fibers. During the process, NMMO degrades to a very low extent into amines, such as morpholine, which may be subject to <i>N</i>-nitrosation to generate traces of <i>N</i>-nitrosomorpholine (NMOR), if conditions prevail favoring this reaction. In addition to NMOR, trace amounts of <i>N</i>-nitroso-<i>N</i>-methylethanolamine (NNMEA) were identified in the ambient air around the spinning site using commercially available air sampling cartridges, analysis by gas chromatography coupled to mass spectrometry (GC–MS), and quantitation by a stable isotope dilution assay (SIDA). <i>N</i>-Nitrosamines present in ambient air are trapped on the cartridge’s adsorption material containing sulfamic acid to prevent de novo<i> N</i>-nitrosation reactions during trapping. Notwithstanding the presence of a nitrosation inhibitor, <i>on-cartridge</i> formation of NNMEA may occur during sampling at elevated nitrogen oxide (NO_x) concentrations in the sampling atmosphere. This as yet unrecognized problem of artifact formation was solved by insertion of a glass fiber filter impregnated with phosphoric acid in front of the air sampling cartridge. The additional filter warrants artifact-free sampling by trapping the most likely precursor 2,3-dehydro-<i>N</i>-methylmorpholine (DNMM) quantitatively on the glass fiber filter. A plausible mechanism of the reaction sequence leading to the formation of NNMEA is proposed.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"31 18","pages":"11211 - 11224"},"PeriodicalIF":4.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142754338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nanocellulose composites: synthesis, properties, and applications to wastewater treatment","authors":"Mesha Mbisana,&nbsp;Ngonye Keroletswe,&nbsp;Florence Nareetsile,&nbsp;Dikabo Mogopodi,&nbsp;Inonge Chibua","doi":"10.1007/s10570-024-06268-y","DOIUrl":"10.1007/s10570-024-06268-y","url":null,"abstract":"<div><p>The growing worldwide environmental and water pollution challenges require the use of renewable biomass-based materials to purify water systems. The remarkable qualities of nanocellulose (NC) and its eco-friendliness make it a desirable material for this purpose. Hence, many investigations have been conducted on the optimization of NC-based materials for water purification. This review presents the first examination of the progress made in creating emerging NC composites using molecularly imprinted polymers (MIPs), metal organic frameworks (MOFs), and aluminosilicates. MIPs, MOFs, and aluminosilicates endow NC composites with stability, multifunctionality, and extended reusability. The applications of these composites to wastewater treatment, such as the removal of toxic heavy metals, dyes, pharmaceuticals, and microorganisms are discussed. Finally, the economic viability, challenges, and future perspectives of these emerging NC composites and their applications are discussed. The research gaps demonstrated in this review will enable the exploration of new areas of study on functionalised NC composites, leading to enhanced industrial applications. Moreover, the utilisation of NC composites with suitably modified components results in multifunctional adsorbents that have great potential for effectively eliminating many contaminants simultaneously.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"31 18","pages":"10651 - 10678"},"PeriodicalIF":4.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10570-024-06268-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142754313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Use of pomegranate peel extract for preparation of UV-absorbing and antimicrobial nitrocellulose coating for wood finishing","authors":"Mohammad Hassan,&nbsp;Ahmed Awaad,&nbsp;Wafaa Abou-Elseoud,&nbsp;Enas Hassan","doi":"10.1007/s10570-024-06246-4","DOIUrl":"10.1007/s10570-024-06246-4","url":null,"abstract":"<div><p>Antimicrobial and UV-resistant coatings are important finishing materials for making specialty wood products. In the current work, anti-bacterial and UV-resistant coatings were prepared from nitrocellulose (NC) and pomegranate peel extract (PGE). Different ratios of PGE were added to NC solution (up to 10 wt.% of NC) and the effect of PGE on the viscosity of NC solution, optical, UV-absorption, mechanical, moisture sorption, and antibacterial properties of NC films was studied. Finally, the NC/PGE solution with the appropriate antibacterial activity was sprayed onto the surface of beechwood and its surface was evaluated and compared to neat NC coating regarding gloss, color, change in color due to daylight and thermal aging, and wettability by water. The results showed that PGE reduced the viscosity of NC solution even at low concentrations. All the NC/PGE films had good homogeneity, transparency, UV light absorption, film flexibility, and good antibacterial properties against Gram-positive <i>Staphylococcus aureus</i> and Gram-negative <i>Escherichia coli</i> bacteria at PGE content 6% or higher. PGE moderately increased the moisture sorption of NC films at high relative humidity (98%). Beechwood was sprayed with NC/8% PGE solution in ethyl acetate; the presence of PGE in NC didn’t affect the visual appearance or light indices (L, a, and b) of the coated wood when compared to the coating with neat NC. The NC/8%PGE coating had high stability against daylight aging while there was no difference in color change between the wood coated with NC and NC/8%PGE after thermal aging. The study showed the potential of PGE as a renewable and safe anti-bacterial and UV-resistant additive for nitrocellulose lacquers used in furniture.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"31 18","pages":"11147 - 11167"},"PeriodicalIF":4.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10570-024-06246-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142754312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interaction of cellulose and water upon drying and swelling by 13C CP/MAS NMR","authors":"Matti Leskinen,&nbsp;Ilkka Kilpeläinen,&nbsp;Sami Hietala","doi":"10.1007/s10570-024-06227-7","DOIUrl":"10.1007/s10570-024-06227-7","url":null,"abstract":"<div><p>Associated water plays a significant role in the morphology of cellulose and the molecular interactions between polymer chains. It also affects the material properties and influences the interpretation of analysis results. In the present study the interaction of cellulose and water in well-defined cellulose samples, hydrogel beads prepared by regeneration of microcrystalline cellulose from organic electrolyte solution, are investigated by solid state ¹³C CP/MAS NMR. Drying of the hydrogel beads under ambient conditions gave condensed cellulose xerogel beads, which could be partly reswollen in water. The analysis of beads of different moisture content and under repeated drying and swelling afforded a better understanding of the hierarchical organization and crystallinity of cellulose II, which is broadly divisible into crystalline and surface residues in CP/MAS, and the nature of cellulose hornification. The changes in the ¹³C CP/MAS spectra of water- and D₂O-swollen beads also provide new information on the role of immobilized bound water in intermolecular polarization transfer from water to cellulose during the cross-polarization pulse sequence, and evidence of the cellulose II reducing-end-group, which is more prominently observable in CP/MAS under dry conditions.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"31 18","pages":"10745 - 10769"},"PeriodicalIF":4.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10570-024-06227-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142754314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}