Materials Today Advances最新文献_第10页

Synaptic devices for simulating brain processes in visual-information perception to persisting memory through attention mechanisms 通过注意机制模拟视觉信息感知到持久记忆的脑过程的突触装置

IF 1 2区材料科学

Materials Today Advances Pub Date : 2023-09-09 DOI: 10.1016/j.mtadv.2023.100421

Jieun Kim, Jung Wook Lim, Han Seul Kim

{"title":"Synaptic devices for simulating brain processes in visual-information perception to persisting memory through attention mechanisms","authors":"Jieun Kim, Jung Wook Lim, Han Seul Kim","doi":"10.1016/j.mtadv.2023.100421","DOIUrl":"https://doi.org/10.1016/j.mtadv.2023.100421","url":null,"abstract":"In the human brain, attention plays a crucial role in encoding information into memory. Therefore, focused attention during encoding enhances the likelihood of information being effectively encoded and stored in memory. This phenomenon is creatively replicated in our proposed synaptic devices, which regulate the forgetting curves by manipulating the gate voltage. Thus, the proposed transistor devices separate long-term memory from long-lasting memory. TiO2-based synaptic transistors are used to replicate brain functions, from vision processing to memory retention. The photosensitive nature of TiO2 enables the utilization of both photo- and electric stimuli. The electrical properties of the synaptic devices induced by photostimulation replicate the human-vision process, while those elicited by electric stimulation simulate memory-retention capabilities. By applying a shallow trap with a short lifetime, light stimulation can be utilized to mimic the effects of short-term memory. A deep trap with a long lifetime is employed in electrical memory to replicate the phenomena associated with persisting memory. A simulation of the MNIST recognition of an artificial neural network constructed with the measured synaptic characteristics exhibit an accuracy rate of 92.96%, which indicates that the proposed device can be successfully incorporated into neuromorphic devices.","PeriodicalId":48495,"journal":{"name":"Materials Today Advances","volume":"3 1","pages":""},"PeriodicalIF":10.0,"publicationDate":"2023-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138542908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Toxic element-free Ti-based metallic glass ribbons with precious metal additions 含贵金属添加的无毒元素钛基金属玻璃带

IF 1 2区材料科学

Materials Today Advances Pub Date : 2023-08-01 DOI: 10.1016/j.mtadv.2023.100392

Eray Yüce, F. Spieckermann, Atacan Asci, S. Wurster, P. Ramasamy, L. Xi, B. Sarac, J. Eckert

引用次数: 0

Hf/porphyrin-based metal-organic framework PCN-224 for CO2 cycloaddition with epoxides Hf/卟啉基金属有机骨架PCN-224与环氧化物的CO2环加成反应

IF 1 2区材料科学

Materials Today Advances Pub Date : 2023-08-01 DOI: 10.1016/j.mtadv.2023.100390

S. Carrasco, Gisela Orcajo, F. Martínez, I. Imaz, S. Kavak, D. Arenas-Esteban, D. Maspoch, S. Bals, G. Calleja, P. Horcajada

引用次数: 1

High performance aqueous asymmetric supercapacitors developed by interfacial engineering wood-derived nanostructured electrodes 界面工程木基纳米结构电极开发的高性能水不对称超级电容器

IF 1 2区材料科学

Materials Today Advances Pub Date : 2023-08-01 DOI: 10.1016/j.mtadv.2023.100391

Y. Teng, Jing Wei, T. Guo, Yongzan Zhou, Zhilei Zhang, Z. Su, K. C. Tam, Yimin A. Wu

引用次数: 0

The exploration of upconversion luminescence nanoprobes for tobramycin detection based on Förster resonance energy transfer 基于Förster共振能量转移的妥布霉素检测上转换发光纳米探针的探索

IF 1 2区材料科学

Materials Today Advances Pub Date : 2023-08-01 DOI: 10.1016/j.mtadv.2023.100409

Tonghua Wan, W. Song, H. Wen, X. Qiu, Qiuqiang Zhan, Wei Chen, Hui‐fang Yu, Lin Yu, A. Aleem

引用次数: 1

Formation mechanism of micro/nanoscale structures on picosecond laser pulse processed copper 皮秒激光加工铜表面微纳结构的形成机理

IF 1 2区材料科学

Materials Today Advances Pub Date : 2023-08-01 DOI: 10.1016/j.mtadv.2023.100412

Mark Anderson, Graham Kaufman, Aaron Ediger, D. Alexander, C. Zuhlke, J. Shield

引用次数: 1

Inkjet-printed morphogenesis of tumor-stroma interface using bi-cellular bioinks of collagen-poly(N-isopropyl acrylamide-co-methyl methacrylate) mixture. 胶原-聚(n-异丙基丙烯酰胺-共甲基丙烯酸甲酯)双细胞生物墨水喷墨打印肿瘤-基质界面形态发生。

IF 1 2区材料科学

Materials Today Advances Pub Date : 2023-08-01 DOI: 10.1016/j.mtadv.2023.100408

Cih Cheng, Naomi Deneke, Hye-Ran Moon, Sae Rome Choi, Natalia Ospina-Muñoz, Bennett D Elzey, Chelsea S Davis, George T-C Chiu, Bumsoo Han

{"title":"Inkjet-printed morphogenesis of tumor-stroma interface using bi-cellular bioinks of collagen-poly(N-isopropyl acrylamide-co-methyl methacrylate) mixture.","authors":"Cih Cheng, Naomi Deneke, Hye-Ran Moon, Sae Rome Choi, Natalia Ospina-Muñoz, Bennett D Elzey, Chelsea S Davis, George T-C Chiu, Bumsoo Han","doi":"10.1016/j.mtadv.2023.100408","DOIUrl":"https://doi.org/10.1016/j.mtadv.2023.100408","url":null,"abstract":"Recent advances in biomaterials and 3D printing/culture methods enable various tissue-engineered tumor models. However, it is still challenging to achieve native tumor-like characteristics due to lower cell density than native tissues and prolonged culture duration for maturation. Here, we report a new method to create tumoroids with a mechanically active tumor-stroma interface at extremely high cell density. This method, named \"inkjet-printed morphogenesis\" (iPM) of the tumor-stroma interface, is based on a hypothesis that cellular contractile force can significantly remodel the cell-laden polymer matrix to form densely-packed tissue-like constructs. Thus, differential cell-derived compaction of tumor cells and cancer-associated fibroblasts (CAFs) can be used to build a mechanically active tumor-stroma interface. In this methods, two kinds of bioinks are prepared, in which tumor cells and CAFs are suspended respectively in the mixture of collagen and poly (N-isopropyl acrylamide-co-methyl methacrylate) solution. These two cellular inks are inkjet-printed in multi-line or multi-layer patterns. As a result of cell-derived compaction, the resulting structure forms tumoroids with mechanically active tumor-stroma interface at extremely high cell density. We further test our working hypothesis that the morphogenesis can be controlled by manipulating the force balance between cellular contractile force and matrix stiffness. Furthermore, this new concept of \"morphogenetic printing\" is demonstrated to create more complex structures beyond current 3D bioprinting techniques.","PeriodicalId":48495,"journal":{"name":"Materials Today Advances","volume":"19 ","pages":""},"PeriodicalIF":10.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c0/91/nihms-1929003.PMC10486313.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10239592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CO2-Responsive drug delivery system created by supramolecular design and assembly for safer, more effective cancer therapy 通过超分子设计和组装创建的CO2响应性药物递送系统，用于更安全、更有效的癌症治疗

IF 1 2区材料科学

Materials Today Advances Pub Date : 2023-08-01 DOI: 10.1016/j.mtadv.2023.100400

Vo Thuy Thien Ngan, F. Ilhami, Sin-Yu Huang, Ting-Hsuan Su, Hsin-Hsuan Tsai, Chih-Chia Cheng

引用次数: 0

Device engineering of p-CuAlO2/β-Ga2O3 interface: A staggered-gap band-alignment p-CuAlO2/β-Ga2O3界面的器件工程：交错带对准

IF 1 2区材料科学

Materials Today Advances Pub Date : 2023-08-01 DOI: 10.1016/j.mtadv.2023.100402

C. V. Prasad, M. Labed, Mohammad Tauquir Alam Shamim Shaikh, J. Min, Tan Hoang Vu Nguyen, W. Song, Jang Hyeok Park, Kyong Jae Kim, Sangmo Kim, S. Kyoung, N. Sengouga, Y. Rim

引用次数: 0

Self-assembly of caragana-based nanomaterials into multiple heteroatom-doped 3D-interconnected porous carbon for advanced supercapacitors 基于锦鸡儿的纳米材料自组装成用于高级超级电容器的多个杂原子掺杂的3D互连多孔碳

IF 1 2区材料科学

Materials Today Advances Pub Date : 2023-08-01 DOI: 10.1016/j.mtadv.2023.100394

Zhi-wen Zhang, Cui-Ying Lu, Guang-Hui Liu, Yuan Cao, Zhen Wang, Ting-ting Yang, Yuhao Kang, Xianjun Wei, Hong-Cun Bai

引用次数: 1