Advanced Materials Technologies最新文献

{"title":"A Versatile and High-Resolution Hydrogel Platform for Volumetric Additive Manufacturing Based on Poly(ethylene glycol) Diacrylate and Alginate Blends","authors":"Patrick C. Hall,&nbsp;DeShea Chasko,&nbsp;Tim Wheeler,&nbsp;Diana Ostojich,&nbsp;Judah Aptecker,&nbsp;Ievgenii Liashenko,&nbsp;Robert Luxenhofer,&nbsp;Gabriella C.J. Lindberg,&nbsp;Paul D. Dalton","doi":"10.1002/admt.202401668","DOIUrl":"https://doi.org/10.1002/admt.202401668","url":null,"abstract":"<p>Volumetric additive manufacturing (VAM) has emerged as a potent method for fabricating complex structures out of soft materials such as hydrogels. In this study, a low-cost photopolymer platform is developed based on low molecular weight poly (ethylene glycol) diacrylate (PEGDA) and alginate (Alg) blends which reduces material costs ≈1000x. By adding non-crosslinked 0.5 wt.% of Alg to these 5, 10, or 15 wt.% PEGDA precursor solutions, the viscosity is raised from &lt;1 mPa*s to 50 mPa*s, which enables VAM of low molecular weight PEGDA. The fabricated hydrogels have customizable mechanical properties, ranging from 14 ± 4 kPa to 90 ± 24 kPa, and 289 ±121 kPa and correspond to equilibrium water contents of 96.8 ± 0.3%, 91.2% ± 0.8% and 84.1% ± 0.9%. The printed structures have minimum feature sizes ranging between 56 ± 9 µm for 5 wt.% PEGDA + 0.5 wt.% Alg, 47 ± 12 µm for 10 wt.% PEGDA + 0.5 wt.% Alg, and 39 ± 7 µm for 15 wt.% PEGDA + 0.5 wt.% Alg. Additionally, these materials are printable into designs with internal voids, unsupported struts, and interlocked features. This work establishes a low cost, mechanically tunable hydrogel platform for VAM which can improve accessibility and adoption.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 8","pages":""},"PeriodicalIF":6.4,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-Resolution Patterning and Efficient Fabricating of Liquid Metal Microelectrodes Using PNIPAM Sacrificial Layer","authors":"Xing Liu,&nbsp;Jiahui Zheng,&nbsp;Xiaoyun Xu,&nbsp;Shilei Hao,&nbsp;Ning Hu,&nbsp;Xiaolin Zheng","doi":"10.1002/admt.202401137","DOIUrl":"https://doi.org/10.1002/admt.202401137","url":null,"abstract":"<p>Microelectrodes play a crucial role in microfluidic chips. However, electrodes with micron-sized geometries lead to undesired impedance increases and processing difficulties. This study introduces a method for preparing low-resistance and low-cost liquid metal microelectrodes (<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>μ</mi>\u0000 <mi>LMEs</mi>\u0000 </mrow>\u0000 <annotation>$umu{rm LMEs}$</annotation>\u0000 </semantics></math>), which leverages the distinct phase transition properties of liquid metal (LM) gallium (Ga) and Poly-N-Isopropylacrylamide (PNIPAM), along with the reversible bonding between PNIPAM and polydimethylsiloxane (PDMS). PNIPAM is spin-coated as a sacrificial layer on silanized glass and heated to dehydration. As it hydrates and swells in the water bath, Ga/PDMS can be easily peeled off, forming a precision surface-embedded <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>μ</mi>\u0000 <mi>LME</mi>\u0000 </mrow>\u0000 <annotation>$umu{rm LME}$</annotation>\u0000 </semantics></math>. The resistance of the <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>μ</mi>\u0000 <mi>LME</mi>\u0000 </mrow>\u0000 <annotation>$umu{rm LME}$</annotation>\u0000 </semantics></math> with a thickness of 25 <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>μ</mi>\u0000 <mi>m</mi>\u0000 </mrow>\u0000 <annotation>$umu{rm m}$</annotation>\u0000 </semantics></math> was only 9.3% and 0.077% of the 100nm thin film Au and indium tin oxide (ITO) film microelectrode with the same plane size. Hydration and swelling of the sacrificial layer ensured the fabrication with high resolutions down to 5 <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>μ</mi>\u0000 <mi>m</mi>\u0000 </mrow>\u0000 <annotation>$umu{rm m}$</annotation>\u0000 </semantics></math> and an acute angle of 15°. The electroosmotic flow tests show that the <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>μ</mi>\u0000 <mi>LME</mi>\u0000 </mrow>\u0000 <annotation>$umu{rm LME}$</annotation>\u0000 </semantics></math> effectively reduces the operating voltage compared to conventional planar Au or ITO microelectrodes. These features make it a promising candidate for electrification requirements in microfluidic devices.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 8","pages":""},"PeriodicalIF":6.4,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carbon Nanotube Interconnected Polypyrrole@ E-MXene Organic-Inorganic Hybrids for Interdigitated In-Plane Supercapacitor Applications","authors":"Namsheer K,&nbsp;Mohammed Kenz K T,&nbsp;Seetha Lakshmy,&nbsp;Chandra Shekhar Sharma,&nbsp;Sang Mun Jeong,&nbsp;Chandra Sekhar Rout","doi":"10.1002/admt.202401838","DOIUrl":"https://doi.org/10.1002/admt.202401838","url":null,"abstract":"<p>In recent times, there has been a growing focus on developing flexible electrochemical energy storage devices to address the booming demands of wearable electronics. Supercapacitors (SC) are prized among the electrochemical energy storage devices for their remarkable specific capacitance and power density. Conventional flexible SCs predominantly rely on various carbon based materials as electrodes and current collectors for these applications. Despite this, a novel approach is adopted to fabricate a flexible supercapacitor from laser-induced graphene with a ternary hybrid of polypyrrole with Mxene and carbon nanotube (PPy@E-MXene/f-CNT) as an electrode material. The fabricated in-plane supercapacitor achieves an outstanding specific capacitance of 66.6 mF cm⁻² (83.25 mFg⁻¹) with an energy density of 4.5 µWh cm⁻² (with a power density of 0.03 mW cm⁻²). This innovative approach presents a promising avenue for developing flexible and wearable energy storage solutions. Further, Density Functional Theory (DFT) simulations are carried out to support the experimental findings and elucidate the structural, electronic, and electrochemical properties of the hybrid systems.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 8","pages":""},"PeriodicalIF":6.4,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Manipulation Study of Bubble-Propelled Hydrogel Microbots","authors":"Mingliang Li,&nbsp;Ping Wang,&nbsp;Hui Zhang,&nbsp;Ping Liu,&nbsp;Guangli Liu,&nbsp;Cong Sui,&nbsp;Runhuai Yang,&nbsp;Tingting Luo","doi":"10.1002/admt.202401265","DOIUrl":"https://doi.org/10.1002/admt.202401265","url":null,"abstract":"<p>Microbots have shown considerable potential in the biomedical field. Their capability to target specific areas for diagnosis, treatment, and other applications with minimal invasiveness is particularly advantageous. However, complex application environments and harsh driving conditions greatly limit the locomotion behaviors of microbots, and therefore the locomotion mode of microbots deserves more exploration and research. This study focuses on a near-infrared light-driven bubble-propelled microbot. The photothermally responsive materials used in the design are modified to enhance bubble generation properties. Additionally, the controlled 3D printing preparation process can indirectly influence the bubble aggregation pathway by altering the microbot's micro-nanostructured porous structure. Ultimately, by adjusting the laser parameters, the microbot can be controlled to achieve a variety of locomotion modes. Furthermore, the experimental observations and theoretical analysis of the microbot's locomotion modes are summarized. A preliminary digital description is provided, which verifies the feasibility of controlling these locomotion modes. This lays the foundation for the precise control of microbots in future applications.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 8","pages":""},"PeriodicalIF":6.4,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Revealing Self-Driven Broadband Photodetection Using Heterojunction of Bi2Se3 and Low-Temperature Laser Molecular Beam Epitaxy Grown GaN on SrTiO3 (100) Substrate","authors":"Vishnu Aggarwal,&nbsp;Rahul Kumar,&nbsp;Sudhanshu Gautam,&nbsp;Aditya Yadav,&nbsp;Bipul Kumar Pradhan,&nbsp;Ramakrishnan Ganesan,&nbsp;Govind Gupta,&nbsp;M. Senthil Kumar,&nbsp;Sumeet Walia,&nbsp;Sunil Singh Kushvaha","doi":"10.1002/admt.202401632","DOIUrl":"https://doi.org/10.1002/admt.202401632","url":null,"abstract":"<p>Optoelectronic properties of GaN are underexplored on good lattice matching SrTiO₃ (STO) due to STO's instability at the high GaN growth temperatures (800–1100 °C) required by traditional techniques. Here, GaN is grown on STO (100) at lower temperatures (500, 600, and 700 °C) using the laser-assisted molecular beam epitaxy (LMBE) technique, and their morphological, crystalline, optical, and photodetection properties are analyzed. Further, heterojunction of Bi₂Se₃ thin film (bandgap of 0.3 eV) is formed on the highest photo-responsive LMBE-GaN/STO to fabricate a self-powered broadband photodetector. The fabricated self-powered heterojunction photodetectors device exhibits a high responsivity of 2.93 × 10² mAW⁻¹ in ultraviolet region and a notable responsivity of 2.3 and 12 mAW⁻¹ in visible and near-infrared spectral regions, respectively. In addition, photoresponse properties of fabricated devices on bare LMBE-GaN and its heterojunction are compared under UV light illumination. The photoresponsivity of heterojunction in UV region is estimated to be 3.05 × 10⁴ mAW⁻¹, which is enhanced by 100% compared to bare LMBE-GaN. Combining the unique optoelectronic properties of GaN and rigidity of STO, epitaxy of GaN on STO enables construction of robust photodetector devices. Further, Bi₂Se₃-functionalized GaN can provide self-sufficient and high-quality futuristic optoelectronics devices.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 8","pages":""},"PeriodicalIF":6.4,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Free-Standing, Transparent Carbon Nanotube Thin Films with High Specific Shielding Effectiveness","authors":"Samuel J. Boyd,&nbsp;Jamie E. Rossi,&nbsp;Daniel L. Broderick,&nbsp;Ivan Puchades,&nbsp;Brian J. Landi","doi":"10.1002/admt.202401392","DOIUrl":"https://doi.org/10.1002/admt.202401392","url":null,"abstract":"<p>Carbon nanotubes (CNTs) are emerging as a candidate shielding material for RF technologies due to their multi-functional properties such as low density, flexibility, and excellent electrical properties. The present work provides a direct comparison of shielding measurements for single-wall (SWCNT) and multi-wall (MWCNT) free-standing thin films fabricated from chlorosulfonic acid dispersions. CNT thin film properties are varied to create a series of thicknesses ranging from ≈18 to ≈4000 nm, resulting in optical transparencies from 80 to 0%. Shielding effectiveness is measured using a rectangular waveguide setup from 10 to 15 GHz and shows frequency-independence with values up to 50 dB. Lower shielding effectiveness in MWCNT films relative to SWCNT films of equivalent mass is consistent with theoretical studies that propose a restriction of the electromagnetic interaction to the outer MWCNT walls. The present SWCNT and MWCNT films exhibit density- and thickness-specific shielding effectiveness of 3.3 × 10⁶ dB cm² g⁻¹, a 10× increase over emerging thin film and transparent conductive materials. Demonstration of shielding effectiveness has been made by measuring signal strength reduction from a Bluetooth device when attenuated by the CNT film. Thus, the present work advances the potential to incorporate transparent, conductive CNT films into RF technologies with arbitrary surface geometry.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 8","pages":""},"PeriodicalIF":6.4,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of a Novel Ultra-Acidic Self-Assembling Peptides-Based Hydrogel System for pH-Tunable Nanobody Delivery","authors":"Yang Guo,&nbsp;Xiaohui Chu,&nbsp;Yang Deng,&nbsp;Liang Song,&nbsp;Fei Li,&nbsp;Ming Zhang,&nbsp;Fei Xu,&nbsp;Rui Nian,&nbsp;Wenshuai Liu","doi":"10.1002/admt.202401581","DOIUrl":"https://doi.org/10.1002/admt.202401581","url":null,"abstract":"<p>Self-assembling peptide hydrogels are promising scaffolds for drug delivery, however, the costly chemical synthesis of peptides has limited their widespread application. This study develops an innovative biological recombinant strategy for (RADA)₅ peptide production by fusing with a fibronectin fragment in <i>Escherichia coli</i>. Notably, it is reported for the first time, (RADA)₅ peptides gelates at an extremely acidic pH of 1.2, indicating potential application in the gastrointestinal tract. Circular dichroism reveals a characteristic β-sheet structure and transmission electron microscopy exhibits a dense and interwoven nanofiber network. The (RADA)₅ peptide hydrogels demonstrate a pH-responsive release with a substantial nanobody release at pH 6.8 (≈80%) and minimal release at pH 2.0 (&lt;30%). This behavior allows fine-tuning of nanobody release, potentially enabling retention in the acidic stomach and targeted release in the intestines. Within 24 h, &lt;18% of the encapsulated nanobodies are released at pH 2.0, with sustained release observed upon transition to pH 6.8, achieving a cumulative release of 55% over 14 days. In conclusion, the novel ultra-acidic (RADA)₅ peptide hydrogels are promising for sustained and controlled release of nanobodies in gastrointestinal disease treatment.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 8","pages":""},"PeriodicalIF":6.4,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Durable Self-Powered Wireless IoT Machine Condition Monitoring System Based on an Auto-Switching Non-Contact Centrifugal TENG","authors":"Idiris Mehamud,&nbsp;Marcus Björling,&nbsp;Pär Marklund,&nbsp;Yijun Shi","doi":"10.1002/admt.202401420","DOIUrl":"https://doi.org/10.1002/admt.202401420","url":null,"abstract":"<p>The long-term intelligent machine condition monitoring system is essential in improving maintenance costs and decision-making. Triboelectric nanogenerator (TENG) has a great advantage in developing self-powered machine condition monitoring. The main issues preventing TENG for such applications are poor integration to machine components, limited operational range, and weak durability. In this work, durable non-contact TENG energy harvester adaptive is designed to mechanical shafts for harvesting rotational energy. The harvester is designed to automatically switch to the non-contact mode by using centrifugal force to avoid manual switching while operating over a wide range of speeds of 0–2000 rpm. The designed TENG generates a high output of up to 25 mW with excellent stability for &gt;20 days of continuous operation and exhibits a high-power density of 286 W m⁻³. Moreover, a self-powered long-term continuous condition monitoring system is developed from a TENG sensor, energy harvester, and wireless module. The developed system successfully sends possible machine fault frequency every 74 min to the cloud and accessible anywhere. This is the only TENG design reported in the literature that can fully power a Wi-Fi module to send data. Hence, the result promises the practical application of the system in developing internet of things (IoT) in the Industry.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 8","pages":""},"PeriodicalIF":6.4,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admt.202401420","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Flexible Thermoelectric Active Cooling Garment to Combat Extreme Heat","authors":"Tianshi Feng,&nbsp;Jiedong Wang,&nbsp;Ethan Sun,&nbsp;Antonio Di Buono,&nbsp;Renkun Chen","doi":"10.1002/admt.202401690","DOIUrl":"https://doi.org/10.1002/admt.202401690","url":null,"abstract":"<p>With the increasing frequency, intensity, and duration of extreme heat events due to climate change, heat-related diseases or even mortality have become more prevalent. An efficient personal cooling strategy can mitigate heat stress by regulating the skin temperature within the thermal comfort zone. However, lightweight, wearable, and sustainable cooling garments are unavailable today. Here, the study develops a thermoelectric device (TED)-based cooling garment and demonstrates its effectiveness in active personal cooling. The garment is shown to maintain the skin temperature within its thermal comfort zone in a hot environment of up to 40 °C under mild forced convection conditions (air flow speed of 2.2 m s⁻¹). Furthermore, the study demonstrates a portable cooling system with less than 700 grams of total weight, which includes the TED-based garment, a battery pack, and a temperature controller. The system showed long-term cooling on the skin with varying ambient temperatures from 35 to 40 °C. With the advantages of lightweight, flexible, controllable, and long-term effective cooling, the TED cooling garments described in this work can contribute to enhanced health and comfort in an increasingly hotter climate.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 7","pages":""},"PeriodicalIF":6.4,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"AI-Enhanced Materials Identification with Smart Directional Tangential Flexible Sensor","authors":"Hongsui Luo,&nbsp;Haoran Niu,&nbsp;Bo Li,&nbsp;Zhanhong Lin,&nbsp;Peixi Yu,&nbsp;Liwen Zhang,&nbsp;Dongxing Zhang,&nbsp;Qiuquan Guo","doi":"10.1002/admt.202401164","DOIUrl":"https://doi.org/10.1002/admt.202401164","url":null,"abstract":"<p>In the field of intelligent manufacturing, flexible sensors play a key role as sensing components. However, people have previously focused on the normal response of tactile sensors and neglected the tangential response, and the traditional symmetric structure still has some difficulties in detecting the tangential force. Here, this work designed a novel sensor with high shear sensing capabilities using 3D printing technology to create micro-pillar structures with adjustable aspect ratios, allowing for a wide detection range or high sensitivity. The sensor is composed of an anisotropic micro-pillar dielectric layer and the fabric electrode layers. By vertically stacking two subunits, the sensor can accurately detect both the magnitude and direction of tangential forces. In addition, the sensor has virtually no signal drift after 20000 cycles, providing long-term stability and durability. Finally, the sensor is integrated with AI technology and applied in areas such as robotic arm grasping, fabric texture sensing, and material recognition, highlighting its strong potential for applications in robotics and human-machine interaction.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 8","pages":""},"PeriodicalIF":6.4,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}