期刊文献+
共找到31,096篇文章
< 1 2 250 >
每页显示 20 50 100
Fabrication of dual-layered microfluidic-blow-spinning nanofiber films with antibacterial and antioxidant functions for food packaging
1
作者 Yu Wu Zian Deng Di Wu 《Food Quality and Safety》 2025年第3期517-525,共9页
Fresh food products are highly susceptible to microbial contamination and oxidative deterioration during storage,necessitating effective preservation strategies.In the present study,we employed a rapid,scalable,and sa... Fresh food products are highly susceptible to microbial contamination and oxidative deterioration during storage,necessitating effective preservation strategies.In the present study,we employed a rapid,scalable,and safe microfluidic-blow-spinning technique to develop a novel multifunctional dual-layered nanofiber film featuring asymmetric wettability and antioxidant and antimicrobial properties.The films consisted of a hydrophobic polycaprolactone(PCL)/ethyl cellulose(EC)layer loaded with thymol and a hydrophilic polyurethane(PU)/polyvinylpyrrolidone(PVP)layer loaded with quercetin.The hydrophilic layer exhibited good antioxidant activity comparable with vitamin C,whereas the hydrophobic layer showed effective antibacterial activity against Escherichia coli and Staphylococcus aureus,92.3%and 98.0%,respectively.In addition,the dual-layered structure significantly improved the elongation at break from 133.28%to 168.81%and improved the thermal stability of the films.The above results indicate that the proposed dual-layered nanofiber film is a promising and sustainable solution for the postharvest preservation of fresh food products. 展开更多
关键词 packaging food ANTIMICROBIAL antioxidant microfluidic-blow-spinning
原文传递
Active food packaging:latest development trends and future prospects
2
作者 Jian Ju 《Food and Health》 2025年第2期1-2,共2页
With the growing demands for food safety,quality,and environmental protection,active food packaging is playing an increasingly vital role in the food industry.Traditional food packaging primarily protects products and... With the growing demands for food safety,quality,and environmental protection,active food packaging is playing an increasingly vital role in the food industry.Traditional food packaging primarily protects products and facilitates transportation.Active food packaging,however,not only fulfills these fundamental functions but also actively interacts with the food or its environment to extend shelf life and enhance food safety.From current research advancements and market applications,active food packaging demonstrates the following prominent development trends. 展开更多
关键词 ACTIVE packaging primarily
在线阅读 下载PDF
Graphene Oxide and Moringa oleifera Seed Oil Incorporated into Gelatin-Based Films:A Novel Active Food Packaging Material
3
作者 María Fernanda Cardona Lunar Ramón Ordoñez +2 位作者 Heidi Fonseca Florido Joaquín Hernández-Fernández Rodrigo Ortega-Toro 《Journal of Renewable Materials》 2025年第2期311-327,共17页
The extensive use of polymeric materials in single-use packaging has driven the need to develop biodegradable alternatives.This study investigates the incorporation of graphene oxide(GO)and Moringa oleifera seed oil(M... The extensive use of polymeric materials in single-use packaging has driven the need to develop biodegradable alternatives.This study investigates the incorporation of graphene oxide(GO)and Moringa oleifera seed oil(MOSO)into a gelatin matrix to create polymer films and evaluate their potential as active packaging materials.The properties of these films were evaluated using structural,thermal,mechanical,optical,and physicochemical methods to determine their suitability for food packaging applications.The results showed that GO and MOSO were homogeneously dispersed in the gelatin matrix,forming colloidal particles(around 5μm in diameter).The addition of GO increased opacity by approximately 20 times the base value while MOSO affected light transmittance without impacting opacity.Mechanical properties were affected differently,GO acted as a crosslinking agent reducing elongation and increasing tensile strength at break,on the other hand MOSO acted as a plasticizer,making films more plastic increasing elongation a 30%.These effects counteracted each other,and similar behavior was recorded in differential scanning calorimetry.The films exhibited an improved water vapor resistance,which is crucial for food packaging.These findings indicate that the incorporation of GO and MOSO into a gelatin matrix may produce biodegradable polymer films with enhanced properties,suitable for active packaging in the food industry. 展开更多
关键词 Biodegradable packaging graphene oxide Moringa oleifera seed oil mechanical properties thermal stability water vapor resistance food packaging applications
在线阅读 下载PDF
Topology transformation of the zeolite catalysts to enhance electronic metal-support interactions and hydrogen spillover effects for hydrogenation of aromatic-rich oil to high-density aviation fuels
4
作者 Xiaoqi Zhang Kai Meng +10 位作者 He Liu Bernard Wiafe Biney Yiqiang Qi Kunyu Xu Jiang Wu Liying Xie Xiaoyu Li Yueliang Liu Kun Chen Zongxian Wang Aijun Guo 《Journal of Energy Chemistry》 2025年第7期1026-1037,共12页
Metal-support interactions and hydrogen spillover effects in heterogeneous catalysts play a crucial role in aromatic hydrogenation reactions;however,these effects are limited by the metal dispersion on the catalyst an... Metal-support interactions and hydrogen spillover effects in heterogeneous catalysts play a crucial role in aromatic hydrogenation reactions;however,these effects are limited by the metal dispersion on the catalyst and the number of acceptable H*receptors.This study prepares highly dispersed Ni nanoparticles(NPs)catalysts on a Beta substrate via precursor structure topology transformation.In contrast to traditional support materials,the coordination and electronic structure changes between the Ni NPs and the support were achieved,further optimizing the active interface sites and enhancing hydrogen activation and hydrogenation performance.Additionally,the-OH groups at the strong acid sites in zeolite effectively intensified the hydrogen spillover effect as receptors for H^(*)migration and anchoring,accelerating the hydrogenation rate of aromatic rings.Under solvent-free conditions,this catalyst was used for the hydrogenation reaction of aromatic-rich oils,directly producing a C_(8)-C_(14)branched cycloalkanes mixture with an aromatic conversion rate of>99%.The cycloalkanes mixture produced by this method features high density(0.92 g/mL)and a low freezing point(<-60℃),making it suitable for use as high-density aviation fuel or as an additive to enhance the volumetric heat value of conventional aviation fuels in practical applications. 展开更多
关键词 Metal-support interaction Hydrogen spillover ZEOLITE Aromatic-richoil high-density aviation fuels
在线阅读 下载PDF
Preparation and Characterization of Multilayered High-density Polyethylene with Tunable Crystalline Structure
5
作者 Yi-Jie Ma Jia-Wei Gong +4 位作者 Bin Chen Ying Zhang Gan-Ji Zhong Zhong-Ming Li Xue-Qin Gao 《Chinese Journal of Polymer Science》 2025年第9期1616-1628,I0011,共14页
In rotationally extruded fittings,high-density polyethylene(HDPE)pipes prepared using conventional processing methods often suffer from poor pressure resistance and low toughness.This study introduces an innovative ro... In rotationally extruded fittings,high-density polyethylene(HDPE)pipes prepared using conventional processing methods often suffer from poor pressure resistance and low toughness.This study introduces an innovative rotary shear system(RSS)to address these deficiencies through controlled mandrel rotation and cooling rates.We successfully prepared self-reinforced HDPE pipes with a three-layer structure combining spherical and shish-kebab crystals.Rotational processing aligned the molecular chains in the ring direction and formed shish-kebab crystals.As a result,the annular tensile strength of the rotationally processed three-layer shish-kebab structure(TSK)pipe increased from 26.7 MPa to 76.3 MPa,an enhancement of 185.8%.Notably,while maintaining excellent tensile strength(73.4 MPa),the elongation at break of the spherulite shishkebab spherulite(SKS)tubes was improved to 50.1%,as compared to 33.8%in the case of shish-kebab spherulite shish-kebab(KSK)tubes.This improvement can be attributed to the changes in the micro-morphology and polymer structure within the SKS tubes,specifically due to the formation of small-sized shish-kebab crystals and the low degrees of interlocking.In addition,2D-SAXS analysis revealed that KSK tubes have higher tensile strength due to smaller crystal sizes and larger shish dimensions,forming dense interlocking structures.In contrast,the SKS and TSK tubes had thicker amorphous regions and smaller shish sizes,resulting in reduced interlocking and mechanical performance. 展开更多
关键词 high-density polyethylene pipe SHISH-KEBAB Circumferential tensile strength Rotational shear Multilayer structure
原文传递
Bio-Composite Films from Carrageenan/Starch Reinforced with Nanocellulose for Active Edible Food Packaging:Development and Optimization
6
作者 Mariia Dmitrenko Daniel Pasquini +9 位作者 Marcela Piassi Bernardo Joao Marcelo de Lima Alves Anna Kuzminova Ilnur Dzhakashov Andrey Terentyev Alexander Dyachkov K.S.Joshy Maya Jacob John Sabu Thomas Anastasia Penkova 《Journal of Renewable Materials》 2025年第6期1139-1168,共30页
Petrochemical plastics are widely used for food protection and preservation;however,they exhibit poor biodegradability,resisting natural degradation through physical,chemical,or enzymatic processes.As a sustainable al... Petrochemical plastics are widely used for food protection and preservation;however,they exhibit poor biodegradability,resisting natural degradation through physical,chemical,or enzymatic processes.As a sustainable alternative to conventional plastic packaging,edible films offer effective barriers against moisture,gases,and microbial contamination while being biodegradable,biocompatible,and environmentally friendly.In this study,novel active food packaging materials(in film form)were developed by incorporating starch,carrageenan,nanocellulose(NC),Aloe vera,and hibiscus flower extract.The effects of varying the matrix composition(26.5–73.5 wt.%starch/carrageenan),NC concentration(2.77-17.07 wt.%),and particle type(fibers or crystals)on the film structure and characteristics were analyzed using various methods.Scanning electron microscopy demonstrated good homogeneity and effective dispersion of NC within the blendmatrix.An increased carrageenan content in the filmimproved wettability,moisture absorption,solubility,and water vapor permeability.The mechanical properties of the films were enhanced by NC incorporation and higher carrageenan content.The developed films also exhibited effective UV radiation barriers and biodegradability.Films with low carrageenan content(less than 33.3%)and high NC content(7%,10% crystals or 10%,15% fibers)exhibited optimal properties,including enhanced water resistance,hydrophobicity,and mechanical strength,along with reduced water vapor permeability.However,the high water solubility and moisture absorption(above 55% and 14%,respectively)indicated their unsuitability as packaging materials for food products with wet surfaces and high humidity.The results suggest that these films are well suited for use as edible food packaging for fruits and vegetables. 展开更多
关键词 CARRAGEENAN STARCH NANOCELLULOSE edible film packaging material
在线阅读 下载PDF
Application of high-density electrical resistivity tomography in backfilling effectiveness of quarries:A case study of Liuyao Village quarry in Huaibei City,Anhui Province
7
作者 XU Guangrui LIU Lijia HAN Jiangtao 《Global Geology》 2025年第4期231-239,共9页
Evaluation of backfilling effectiveness plays a crucial role in the geological environment management and restoration of abandoned open-pit quarries,providing a scientific basis for subsequent greening efforts.Backfil... Evaluation of backfilling effectiveness plays a crucial role in the geological environment management and restoration of abandoned open-pit quarries,providing a scientific basis for subsequent greening efforts.Backfill soil,predominantly composed of silty clay,demonstrates high water retention capacity and elevated moisture content,leading to a pronounced resistivity contrast with the bedrock exposed by quarrying activities.To investigate the distribution of backfill soil subsurface and assess backfilling effectiveness in the study area,this study conducted a comprehensive geophysical investigation utilizing the high-density electrical resistivity tomography(ERT).A total of 19 ERT survey lines were deployed across three distinct areas in Liuyao Village,Huaibei City,Anhui Province,China.The inversion results,derived from both two-dimensional(2D)and three-dimensional(3D),reveal distinct electrical properties of the subsurface materials:the backfill soil layer shows low resistivity features,the fill stone layer exhibits medium to high resistivity,and the bedrock shows the highest resistivity.The 2D inversion results,from the data measured using the Wenner array effectively capture the spatial distribution and structural features of the backfill soil layer.The findings indicate a gradual east-west thinning of the clay layer within the quarry.Furthermore,the northern pit area exhibits a uniform distribution of backfill soil layer,indicative of effective backfilling operations.In contrast,the southern pit area lacks a well-defined clay layer,suggesting suboptimal backfilling effectiveness. 展开更多
关键词 high-density electrical resistivity tomography Wenner array backfilling effectiveness backfill soil
在线阅读 下载PDF
Toxicological and Safety Considerations of Nanocellulose-Containing Packaging Materials
8
作者 Lucila M.Curi Maria C.Area Maria E.Vallejos 《Journal of Renewable Materials》 2025年第11期2109-2137,共29页
The global demand for renewable and sustainable non-petroleum-based resources is rapidly increasing.Lignocellulosic biomass is a valuable resource with broad potential for nanocellulose(NC)production.However,limited s... The global demand for renewable and sustainable non-petroleum-based resources is rapidly increasing.Lignocellulosic biomass is a valuable resource with broad potential for nanocellulose(NC)production.However,limited studies are available regarding the potential toxicological impact of NC.We provide an overview of the nanosafety implications associated mainly with nanofibrillated cellulose(CNF)and identify knowledge gaps.For this purpose,we present an analysis of the studies published from 2014 to 2025 in which the authors mention aspects related to toxicity in the context of packaging.We also analyze the main methods used for toxicity evaluations and the main studies about toxicity evaluation using different biomarkers for a broad interpretation.This comprehensive biblio-graphic review highlights the critical need for further research to elucidate the mechanisms fully underlining NC toxicity,mainly due to its nanofibrillar structure.We focus on the cellular responses across different evaluated cell types through in vitro evaluation,always within the context of the dose used,the type of material or its source,and the type of biomarkers used in the assessments.The importance of addressing safety considerations and key knowledge gaps for the responsible use of CNF derived fromlignocellulosic biomass and its bionanocomposites in food packaging is highlighted. 展开更多
关键词 Cytotoxicity studies nanofibrillated cellulose in vitro nanosafety packaging TOXICITY
在线阅读 下载PDF
High-performance Cu-Cu interconnects attained through air sintering of oleylamine-capped Cu nanoparticles for power electronics packaging
9
作者 Shi-Yu Xia Xiang-Ji Li +7 位作者 Ying-Jie Guo Jun-Jie Yuan Zhe-Fei Sun Hui-Jun Cao Shu-Ye Zhang Wen-Zhi Cai Jin-Tang Li Zhi-Hao Zhang 《Rare Metals》 2025年第5期3281-3298,共18页
Cu nanoparticles exhibit excellent properties as high-temperature-resistant,conductive,heat-dissipating,and connecting materials.However,their susceptibility to oxidation poses a major challenge to the production of h... Cu nanoparticles exhibit excellent properties as high-temperature-resistant,conductive,heat-dissipating,and connecting materials.However,their susceptibility to oxidation poses a major challenge to the production of high-quality sintered bodies in the air,severely limiting their widespread adoption in power electronics packaging.This study presents a novel approach to the synthesis of Cu nanoparticles capped with oleylamine ligands.By employing a simple solvent-cleaning process,effective control of the density of oleylamine ligands on particle surfaces was achieved,resulting in high-performance Cu nanoparticles with both oxidation resistance and air-sintering susceptibility.Moreover,through our research,the solvent-cleaning mechanism was clarified,a model for the oleylamine ligand decomposition was developed,the air-sintering behavior of Cu nanoparticles was analyzed,and the impacts of both the sintered bodies and interfaces on the sintering performance were explained.Additionally,Cu nanoparticles subjected to 5 cleaning rounds followed by sintering at 280℃and 5 MPa in air were confirmed to be able to produce the highest shear strength(49.2±3.51 MPa)and lowest resistivity(6.15±0.32μΩ·cm).Based on these results,flexible capacitive pressure sensors with Cu sintered electrodes were fabricated and demonstrated a stable pressure-capacitance response over the temperature range of 25-250℃.These findings underscore the impressive robustness and durability of sintered structures and the potential for high-temperature applications of oleylamine-capped Cu nanoparticles.Our study provides reliable application demonstrations for the low-cost manufacture of high-performance power electronics packaging structures that can operate in high-current-density,high-heat-flow-density,high-temperature,and high-stress environments. 展开更多
关键词 Air sintering Power electronics packaging Cu nanoparticles Flexible sensor
原文传递
3D laser structuring of supermetalphobic microstructures inside elastomer for multilayer high-density interconnect soft electronics
10
作者 Chengjun Zhang Qing Yang +5 位作者 Haoyu Li Zexiang Luo Yu Lu Jialiang Zhang Cheng Li Feng Chen 《International Journal of Extreme Manufacturing》 2025年第3期337-348,共12页
High-density interconnect(HDI)soft electronics that can integrate multiple individual functions into one miniaturized monolithic system is promising for applications related to smart healthcare,soft robotics,and human... High-density interconnect(HDI)soft electronics that can integrate multiple individual functions into one miniaturized monolithic system is promising for applications related to smart healthcare,soft robotics,and human-machine interactions.However,despite the recent advances,the development of three-dimensional(3D)soft electronics with both high resolution and high integration is still challenging because of the lack of efficient manufacturing methods to guarantee interlayer alignment of the high-density vias and reliable interlayer electrical conductivity.Here,an advanced 3D laser printing pathway,based on femtosecond laser direct writing(FLDW),is demonstrated for preparing liquid metal(LM)-based any layer HDI soft electronics.FLDW technology,with the characteristics of high spatial resolution and high precision,allows the maskless fabrication of high-resolution embedded LM microchannels and high-density vertical interconnect accesses for 3D integrated circuits.High-aspect-ratio blind/through LM microstructures are formed inside the elastomer due to the supermetalphobicity induced during laser ablation.The LM-based HDI circuit featuring high resolution(~1.5μm)and high integration(10-layer electrical interconnection)is achieved for customized soft electronics,including various customized multilayer passive electric components,soft multilayer circuit,and cross-scale multimode sensors.The 3D laser printing method provides a versatile approach for developing chip-level soft electronics. 展开更多
关键词 3D soft electronics liquid metal high-density interconnection femtosecond laser direct writing supermetalphobicity
在线阅读 下载PDF
Design of Campus Self-service Express Packaging Recycling Machine
11
作者 Yu XU Wenwu ZHANG +3 位作者 Guangchen XU Pengxiang ZHAO Zhengliang ZHANG Xueshu LIU 《Mechanical Engineering Science》 2025年第1期4-7,共4页
Based on the concept of sustainable design,we are committed to seeking innovative solutions and designinga complete express packaging recycling machine.The device consists of a vibration device,a compression device,a ... Based on the concept of sustainable design,we are committed to seeking innovative solutions and designinga complete express packaging recycling machine.The device consists of a vibration device,a compression device,a winding device and an electronic control system to promote the recycling of resources and environmental protection.This device can further improve the recycling efficiency and feasibility.It provides new ideas and solutions for the express industry and promotes the development of sustainable design in the field of express packaging recycling and reuse devices. 展开更多
关键词 carton packaging recycling machine design strapping device automatic recycling
在线阅读 下载PDF
Recent Advancements in Nanocomposites-Based Antibiofilm Food Packaging
12
作者 Bandana Padhan Rajkumar Patel +4 位作者 Priyanka Bhowmik Ananya Roy Joyjyoti Das Yong Yu Madhumita Patel 《Journal of Polymer Materials》 2025年第2期411-433,共23页
The food industry prioritizes food safety throughout the entire production process.This involves closely monitoring and evaluating all potential sources of biological or chemical contamination,starting from entering r... The food industry prioritizes food safety throughout the entire production process.This involves closely monitoring and evaluating all potential sources of biological or chemical contamination,starting from entering raw materials into the production chain and continuing to the final product.Biofilms on food surfaces or containers can harbor dangerous pathogens,such as Listeria monocytogenes.Therefore,it is essential to continuously manage microbial contamination on food contact surfaces to prevent foodborne infections.Recently,there has been increasing interest in using nanomaterials as surface coatings with antimicrobial properties in the food industry,especially since traditional disinfectants or antibiotics may contribute to developing resistance.However,the use of antibiofilm materials for long-term food storage remains underexplored,and there is a notable lack of focused reviews on nanomaterialbased antibiofilm coatings specifically for long-term food preservation.This review aims to consolidate recently reported nanoparticle-based antibiofilm food packaging materials.We discuss the effectiveness of various metal and metal oxide nanoparticles and biopolymer nanocomposites in combating biofilms.Additionally,we highlight the growing importance of biodegradable nanocomposite materials for antibiofilm food packaging.Furthermore,we explore the mechanisms of action,processing methods,and safety aspects of these nanomaterials being developed for food packaging applications. 展开更多
关键词 ANTIBIOFILM metal nanoparticles metal oxide nanoparticle biopolymer nanocomposites food packaging
在线阅读 下载PDF
Enhancing strength at elevated temperatures via dynamic high-density mobile dislocations in Mg alloys
13
作者 Mingyu Fan Ye Cui +13 位作者 Xin Zhou Junming Chen Yang Zhang Lixin Sun Jamieson Brechtl Daqing Fang Qian Li Qingqing Ding Hongbin Bei Peter K.Liaw Yanzhuo Xue Xun-Li Wang Yang Lu Zhongwu Zhang 《Journal of Magnesium and Alloys》 2025年第8期3768-3783,共16页
Dislocation strengthening,as one of the methods to simultaneously enhance the room temperature strength and ductility of alloys,does not achieve the desired strengthening and plasticity effect during elevated-temperat... Dislocation strengthening,as one of the methods to simultaneously enhance the room temperature strength and ductility of alloys,does not achieve the desired strengthening and plasticity effect during elevated-temperature deformation.Here,we report a novel strategy to boost the dislocation multiplication and accumulation during deformation at elevated temperatures through dynamic strain aging(DSA).With the introduction of the rare-earth element Ho in Mg-Y-Zn alloy,Ho atoms diffuse toward dislocations during deformation at elevated temperatures,provoking the DSA effect,which increases the dislocation density significantly via the interactions of mobile dislocations and Ho atoms.The resulting alloy achieves a great enhancement of dislocation hardening and obtains the dual benefits of high strength and good ductility simultaneously at high homologous temperatures.The present work provides an effective strategy to enhancing the strength and ductility for elevated-temperature materials. 展开更多
关键词 Mg-Y-Zn alloy Ho addition high-density mobile dislocations Dynamic strain aging(DSA) Elevated-temperature strength
在线阅读 下载PDF
Sustainable Egg Packaging Waste Biocomposites Derived from Recycled Wood Fibers and Fungal Filaments
14
作者 Ilze Irbe Laura Andze Inese Filipova 《Journal of Renewable Materials》 2025年第11期2139-2154,共16页
Growing environmental concerns and the need for sustainable alternatives to synthetic materials have led to increased interest in bio-based composites.This study investigates the development and characterization of su... Growing environmental concerns and the need for sustainable alternatives to synthetic materials have led to increased interest in bio-based composites.This study investigates the development and characterization of sustainable egg packaging waste(EPW)biocomposites derived from recycled wood fibers and fungal mycelium filaments as a natural binder.Three formulations were prepared using EPW as the primary substrate,with and without the addition of hemp shives and sawdust as co-substrates.The composites were evaluated for granulometry,density,mechanical strength,hygroscopic behavior,thermal conductivity,and fire performance using cone calorimetry.Biocomposites,composed exclusively of egg packaging waste,exhibited favorable fire resistance,lower total heat release(THR)and total smoke release(TSR),extended time to ignition(TTI),reduced hygroscopicity,and higher flexural strength.Biocomposites,containing hemp shives,demonstrated improved compressive strength and thermal insulation but showed weaker fire resistance.Biocomposites,incorporating sawdust,showed intermediate properties with the longest flameout time(TTF)and highest heat release values.Overall,the results demonstrate that EPW-based biocomposites can be tailored through substrate composition to achieve desirable combinations of mechanical,thermal,and fire-retardant properties,highlighting their potential as sustainable alternatives to conventional syntheticmaterials in building and packaging applications. 展开更多
关键词 Egg packaging waste fungal mycelium BIOCOMPOSITES mechanical properties thermal conductivity fire resistance
在线阅读 下载PDF
Performance Enhancement of Chitosan for Food Packaging:Impact of Additives and Nanotechnology
15
作者 Panji Setya Utama Putra Damar Rastri Adhika +1 位作者 Lia Amelia TresnaWulan Asri Suprijadi Suprijadi 《Journal of Renewable Materials》 2025年第6期1043-1070,共28页
The continuous increase in petroleum-based plastic food packaging has led to numerous environmental concerns.One effort to reduce the use of plastic packaging in food is through preservation using biopolymer-based pac... The continuous increase in petroleum-based plastic food packaging has led to numerous environmental concerns.One effort to reduce the use of plastic packaging in food is through preservation using biopolymer-based packaging.Among the many types of biopolymers,chitosan is widely used and researched due to its non-toxic,antimicrobial,and antifungal properties.Chitosan is widely available since it is a compound extracted from seafood waste,especially shrimps and crabs.The biodegradability and biocompatibility of chitosan also showed good potential for various applications.These characteristics and propertiesmake chitosan an attractive biopolymer to be implemented as food packaging in films and coatings.Chitosan has been tested in maintaining and increasing the shelf life of food,especially seafood such as fish and shrimp,and post-harvest products such as fruits and vegetables.In addition to its various advantages,the properties and characteristics of chitosan need to be improved to produce optimal preservation.The properties and characteristics of chitosan are improved by adding various types of additive materials such as biopolymers,plant extracts,essential oils,and metal nanoparticles.Research shows that material additives and nanotechnology can improve the quality of chitosan-based food packaging for various types of food by enhancing mechanical properties,thermal stability,antimicrobial activity,and antioxidant activity.This review provides a perspective on the recent development and properties enhancement of chitosan composite with additives and nanotechnology,as well as this material’s challenges and prospects as food packaging. 展开更多
关键词 BIOPOLYMER CHITOSAN essential oil plant extract metal nanoparticles food packaging NANOTECHNOLOGY
在线阅读 下载PDF
Precise modulation of the debonding behaviours of ultra-thin wafers by laser-induced hot stamping effect and thermoelastic stress wave for advanced packaging of chips
16
作者 Jieyuan Zhang Yanlei Hu +6 位作者 Fangcheng Wang Qiang Liu Fangfang Niu Jinhui Li Mingqi Huang Guoping Zhang Rong Sun 《International Journal of Extreme Manufacturing》 2025年第1期395-407,共13页
Laser debonding technology has been widely used in advanced chip packaging,such as fan-out integration,2.5D/3D ICs,and MEMS devices.Typically,laser debonding of bonded pairs(R/R separation)is typically achieved by com... Laser debonding technology has been widely used in advanced chip packaging,such as fan-out integration,2.5D/3D ICs,and MEMS devices.Typically,laser debonding of bonded pairs(R/R separation)is typically achieved by completely removing the material from the ablation region within the release material layer at high energy densities.However,this R/R separation method often results in a significant amount of release material and carbonized debris remaining on the surface of the device wafer,severely reducing product yields and cleaning efficiency for ultra-thin device wafers.Here,we proposed an interfacial separation strategy based on laser-induced hot stamping effect and thermoelastic stress wave,which enables stress-free separation of wafer bonding pairs at the interface of the release layer and the adhesive layer(R/A separation).By comprehensively analyzing the micro-morphology and material composition of the release material,we elucidated the laser debonding behavior of bonded pairs under different separation modes.Additionally,we calculated the ablation threshold of the release material in the case of wafer bonding and established the processing window for different separation methods.This work offers a fresh perspective on the development and application of laser debonding technology.The proposed R/A interface separation method is versatile,controllable,and highly reliable,and does not leave release materials and carbonized debris on device wafers,demonstrating strong industrial adaptability,which greatly facilitates the application and development of advanced packaging for ultra-thin chips. 展开更多
关键词 laser debonding behaviours laser-induced hot stamping effect thermoelastic stress wave advanced packaging
在线阅读 下载PDF
Occurrences and migration characteristics of photoinitiators in paper food packaging:Implication for human exposure
17
作者 Chenge Qian Lu Bai +3 位作者 Wen Wang Yadan Luo Juan Li Yawei Wang 《Journal of Environmental Sciences》 2025年第12期435-446,共12页
Photoinitiators(PIs),as an important component of UV inks,are widely used in the printing of paper food packaging.Nevertheless,there is limited information concerning the identification of PIs in food packaging and th... Photoinitiators(PIs),as an important component of UV inks,are widely used in the printing of paper food packaging.Nevertheless,there is limited information concerning the identification of PIs in food packaging and their potential migration rules under natural storage condition.In this study,23 target PIs detected in paper food packaging were dominated by benzophenones(BZPs),followed by amine co-initiators(ACIs),thioxanthones(TXs)and phosphine oxides(POs).The concentration of ΣPIs ranged between 48.3 and 1.11×10^(5)ng/g.Meanwhile,the concentration ofΣPIs were found to be significantly higher in Corrugated paper compared to Polyethylene(PE)coated paper,Composite paper and White card paper.Benzophenone(BP)was found as the dominant PI congener in Corrugated paper,with the concentration ranging from 923-3.66×10^(4)ng/g.The migration quantity ofΣPIs increased in a time-dependent manner in the first 13 days and then eventually reached equilibrium.Low temperatures had a certain inhibitory effect on the migration of PIs from paper packaging to food.Under high exposure scenario,the EDIs of ΣPIs for children,adolescents,and adults were 31.4 ng/(kg bw·day),17.2 ng/(kg bw·day),and 14.4 ng/(kg bw·day),respectively,all of which did not exceed the reference dose,indicating that dietary intake of PIs does not pose any health risks to the human body. 展开更多
关键词 PHOTOINITIATORS Food packaging materials Distribution profiles Migration characteristics Dietary exposure assessment
原文传递
A novel BaEVRless-LV packaging system for the production of lentiviral vectors for clinical-grade CAR-NK cell manufacturing
18
作者 Yinyin Zhang Minghuan Zhang +5 位作者 Mengyuan Li Lihong Zong Qian Ye Wen Lei Wenhai Deng Wenbin Qian 《Cancer Biology & Medicine》 2025年第2期137-143,共7页
Chimeric antigen receptor natural killer(CAR-NK)cell therapy is an alternative immunotherapy that provides robust tumor-eliminating effects without inducing life-threatening toxicities and graft-versus-host disease.CA... Chimeric antigen receptor natural killer(CAR-NK)cell therapy is an alternative immunotherapy that provides robust tumor-eliminating effects without inducing life-threatening toxicities and graft-versus-host disease.CAR-NK cell therapy has enabled the development of“off-the-shelf”products that bypass the lengthy and expensive cell manufacturing process1. 展开更多
关键词 LENTIVIRAL packaging VECTORS alternative immunotherapy chimeric antigen receptor natural system cell manufacturing process NOVEL
暂未订购
Plant-Based Cellulose Nanopapers with Applications for Packaging,Protective Films and Energy Devices
19
作者 Verónica L.Mucci Mirta I.Aranguren 《Journal of Renewable Materials》 2025年第8期1491-1519,共29页
Interest in the use of cellulose nanomaterial’s continues to grow,both in research and industry,not only due to the abundance of raw materials,low toxicity and sustainability,but also due to the attractive physical a... Interest in the use of cellulose nanomaterial’s continues to grow,both in research and industry,not only due to the abundance of raw materials,low toxicity and sustainability,but also due to the attractive physical and chemical properties that make nanocelluloses useful for a wide range of end-use applications.Among the large number of potential uses,and nanocelluloses modification and processing strategies,the chosen topic of this review focuses exclusively on plant-derived cellulose microfibers/nanofibers(CNF)and cellulose nanocrystals(CNC)processed into 2D structures—nanopapers and nanofilms—fabricated as self-standing films or applied as coatings.The end uses considered are:combinationwith standard papers and cardboards for packaging,mendingmaterial for the conservation and protection of cellulosic heritage artifacts,and component-parts of complex designs of functional devices for energy harvesting and storage.In these contexts,nanocelluloses provide high mechanical and ecofriendly properties,transparency and tunable haze,as well as flexibility/bendability in the resulting films.All these characteristics make them extremely attractive to a market seeking for sustainable,light weight and low cost raw materials for the production of goods.General perspectives on the current advantages and disadvantages of using CNF and CNC in the selected areas are also reviewed. 展开更多
关键词 NANOCELLULOSE cellulose nanofibers cellulose nanocrystals packaging energy storage energy harvesting heritage paper protection
在线阅读 下载PDF
Consumer Attitudes and Purchase Intentions Toward Eco-Friendly Agricultural and Food Packaging:A Case Study in Chungnam Province,South Korea
20
作者 Saem Lee 《Journal of Environmental & Earth Sciences》 2025年第3期47-57,共11页
This study aims to the factors influencing consumer intention to purchase eco-friendly,small-packaged agricultural products using the Theory of Planned Behavior(TPB).With increasing demand for sustainable consumption,... This study aims to the factors influencing consumer intention to purchase eco-friendly,small-packaged agricultural products using the Theory of Planned Behavior(TPB).With increasing demand for sustainable consumption,eco-friendly food packaging has become a critical focus within the circular economy.This study was conducted in Seoul,South Korea,a key marketplace for consumer trends,and surveyed 200 respondents to examine key TPB components—attitude,subjective norms,and perceived behavioral control—along with additional factors shaping sustainable purchasing behavior.The findings indicate that perceived behavioral control is the predictor of purchase intention(β=0.510,p<0.001),followed by attitude(β=0.236,p<0.05)and subjective norms(β=0.199,p<0.05).Moreover,the results suggest that while social influences play a role,individuals who perceive fewer barriers and have a stronger personal attitude toward sustainability are more likely to adopt eco-friendly purchasing behaviors.These results highlight the importance of consumer autonomy and confidence in making eco-friendly choices,suggesting that increasing accessibility and affordability of sustainable packaging can drive adoption.Despite social influences,urban consumers prioritize personal values and perceived control over purchasing behavior.The study might contribute to sustainability literature by offering insights into eco-conscious consumer behavior and implications for marketing strategies that promote sustainable agricultural products.Future research should explore cross-cultural comparisons and additional psychological determinants to enhance the understanding of sustainable consumption patterns. 展开更多
关键词 Consumer Intentions Agricultural and Food packaging Theory of Planned Behavior
在线阅读 下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部