Hyun-Haeng Lee , Jun-Seok Ro , Kwan-Nyeong Kim , Hea-Lim Park , Tae-Woo Lee
{"title":"Exploring photosensitive nanomaterials and optoelectronic synapses for neuromorphic artificial vision","authors":"Hyun-Haeng Lee , Jun-Seok Ro , Kwan-Nyeong Kim , Hea-Lim Park , Tae-Woo Lee","doi":"10.1016/j.cossms.2025.101215","DOIUrl":"10.1016/j.cossms.2025.101215","url":null,"abstract":"<div><div>Artificial vision systems will be essential in intelligent machine-vision applications such as autonomous vehicles, bionic eyes, and humanoid robot eyes. However, conventional digital electronics in these systems face limitations in system complexity, processing speed, and energy consumption. These challenges have been addressed by biomimetic approaches utilizing optoelectronic synapses inspired by the biological synapses in the eye. Nanomaterials can confine photogenerated charge carriers within nano-sized regions, and thus offer significant potential for optoelectronic synapses to perform in-sensor image-processing tasks, such as classifying static multicolor images and detecting dynamic object movements. We introduce recent developments in optoelectronic synapses, focusing on use of photosensitive nanomaterials. We also explore applications of these synapses in recognizing static and dynamic optical information. Finally, we suggest future directions for research on optoelectronic synapses to implement neuromorphic artificial vision.</div></div>","PeriodicalId":295,"journal":{"name":"Current Opinion in Solid State & Materials Science","volume":"35 ","pages":"Article 101215"},"PeriodicalIF":12.2,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143348423","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}
Seyedeh-Arefeh Safavi-Mirmahalleh , Mohsen Khodadadi Yazdi , Mohammad Reza Saeb , Mehdi Salami-Kalajahi
{"title":"Conductive Hydrogels: Bioelectronics and Environmental Applications","authors":"Seyedeh-Arefeh Safavi-Mirmahalleh , Mohsen Khodadadi Yazdi , Mohammad Reza Saeb , Mehdi Salami-Kalajahi","doi":"10.1016/j.cossms.2024.101213","DOIUrl":"10.1016/j.cossms.2024.101213","url":null,"abstract":"<div><div>Flexible multimodal sensors have garnered continued attention due to their tunable structural performance and sensitivity to electric signals, adaptability to various environments, and outstanding mechanical properties. However, the limited self-healing capabilities, degradation, and reversible self-adhesion of sensors made from rubbers, elastomers, and other polymers have hindered their widespread application. Flexible sensors based on hydrogels, which offer exceptional stretchability, flexibility, and biocompatibility, could provide a solution. However, their reliance on external energy sources limits their potential. Thus, efforts have been made to develop conductive hydrogels by incorporating functional groups, additives, or nanofillers into the hydrogel network, which has led to multifunctional wearable sensing capabilities. This review discusses recent advancements in the use of hydrogels in self-powered sensors, including strain/pressure sensors, electronic skin sensors, pressure/strain sensors, temperature monitoring and humidity monitoring applications. Moreover, it focuses on the mechanisms of energy conversion in self-powered sensors. It also provides a concise overview of the various synthesis methods used in developing conductive hydrogels. The current review also outlines the present challenges, besides suggesting potential pathways ahead for future advancement.</div></div>","PeriodicalId":295,"journal":{"name":"Current Opinion in Solid State & Materials Science","volume":"34 ","pages":"Article 101213"},"PeriodicalIF":12.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143102594","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}
{"title":"Optimisation and material considerations of piezoelectric implants for cardiac applications","authors":"Yuan Wang, Matthew S. Dargusch","doi":"10.1016/j.cossms.2024.101211","DOIUrl":"10.1016/j.cossms.2024.101211","url":null,"abstract":"<div><div>The capacity of piezoelectric materials for mechanoelectrical transduction has led to a variety of piezoelectric cardiac implants that could revolutionise cardiac-related healthcare delivery. To advance their clinical translation, critical factors including energy output, biocompatibility, biodegradability/durability, and flexibility need to be collectively assessed to ensure successful medical implantation. This review aims to systematically discuss these critical factors, providing insights into corresponding progress and covering relevant mechanisms and strategies in a clinical setting. The concept of additive-free output optimisation has been proposed which focuses on enhancing piezoelectric output based on existing material systems so that biosafety risks and the time-consuming examination processes induced by introducing additional components can be minimised. Critical discussions regarding the biocompatibility and biodegradability of piezoelectric implants were subsequently conducted. This involved reviewing the biocompatibility of material systems associated with piezoelectric implants and introducing biodegradability mechanisms and potential manipulation strategies. The flexibility of implants was also discussed in conjunction with fabrication methods. Current novel piezoelectric cardiac treatments were summarised covering <em>in vivo</em> energy harvesting, hemodynamic sensing, and cardiac tissue regeneration and stimulation. Lastly, challenges and future perspectives were proposed to inspire future work focused on the translation of reliable piezoelectric implants for addressing cardiac diseases.</div></div>","PeriodicalId":295,"journal":{"name":"Current Opinion in Solid State & Materials Science","volume":"34 ","pages":"Article 101211"},"PeriodicalIF":12.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143102678","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}
Myriel Kim, Rebecca Avrutin, Sean Chryz Iranzo, Honggang Cui
{"title":"High-affinity peptide biomaterials","authors":"Myriel Kim, Rebecca Avrutin, Sean Chryz Iranzo, Honggang Cui","doi":"10.1016/j.cossms.2024.101212","DOIUrl":"10.1016/j.cossms.2024.101212","url":null,"abstract":"<div><div>High-affinity binding is a crucial aspect in the design of advanced biomaterials, enabling the creation of materials that can specifically and effectively interact with target objects such as tissues, cells, or biomolecules, mimicking the sophisticated yet well-controlled interactions found in nature. Peptide-based high-affinity biomaterials have emerged as a promising class due to their versatility in chemical design, simplicity in synthesis and formulation, intrinsic ability to mediate biological communication, and key materials features such as tunable biodegradability and modulable biocompatibility. This Opinion article highlights the critical factors to consider in the development of high-affinity peptide materials, including the selection of appropriate peptide ligands, ensuring conformational stability, and optimizing ligand density and conjugation strategies. It also explores how these design considerations have been successfully employed in various applications, including regenerative medicine, drug delivery, and molecular purification.</div></div>","PeriodicalId":295,"journal":{"name":"Current Opinion in Solid State & Materials Science","volume":"34 ","pages":"Article 101212"},"PeriodicalIF":12.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143102595","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}
Caleb Hatler , Ishtiaque Robin , Hyosim Kim , Nathan Curtis , Bochuan Sun , Eda Aydogan , Saryu Fensin , Adrien Couet , Enrique Martinez , Dan J. Thoma , Osman El Atwani
{"title":"The path towards plasma facing components: A review of state-of-the-art in W-based refractory high-entropy alloys","authors":"Caleb Hatler , Ishtiaque Robin , Hyosim Kim , Nathan Curtis , Bochuan Sun , Eda Aydogan , Saryu Fensin , Adrien Couet , Enrique Martinez , Dan J. Thoma , Osman El Atwani","doi":"10.1016/j.cossms.2024.101201","DOIUrl":"10.1016/j.cossms.2024.101201","url":null,"abstract":"<div><div>Developing advanced materials for plasma-facing components (PFCs) in fusion reactors is a crucial aspect for achieving sustained energy production. Tungsten (W) − based refractory high-entropy alloys (RHEAs) have emerged as promising candidates due to their superior radiation tolerance and high-temperature strength. This review paper will focus on recent advancements in W-based RHEA research, with particular emphasis on: predictive modelling with machine learning (ML) to expedite the identification of optimal RHEA compositions; additive manufacturing (AM) techniques, highlighting their advantages for rapid prototyping and high-throughput multi-compositional sample production; mechanical properties relevant to PFC applications, including hardness, high-temperature strength, and ductility; and the radiation tolerance of W-based RHEAs under irradiated conditions. Finally, the key challenges and opportunities for future research, particularly the holistic analysis of candidate compositions as well as the role of radiation activation and oxidation are identified. This review aims to provide a comprehensive overview of W-based RHEAs for fusion applications and their potential to guide the development and validation of advanced refractory high entropy alloys.</div></div>","PeriodicalId":295,"journal":{"name":"Current Opinion in Solid State & Materials Science","volume":"34 ","pages":"Article 101201"},"PeriodicalIF":12.2,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433812","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}
{"title":"Artificial Intelligence and Machine Learning for materials","authors":"Yuebing Zheng","doi":"10.1016/j.cossms.2024.101202","DOIUrl":"10.1016/j.cossms.2024.101202","url":null,"abstract":"","PeriodicalId":295,"journal":{"name":"Current Opinion in Solid State & Materials Science","volume":"34 ","pages":"Article 101202"},"PeriodicalIF":12.2,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142423126","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}
Amrit Raj Paul , Jayshri Dumbre , Dong Qiu , Mark Easton , Maciej Mazur , Manidipto Mukherjee
{"title":"Grain refinement and morphological control of intermetallic compounds: A comprehensive review","authors":"Amrit Raj Paul , Jayshri Dumbre , Dong Qiu , Mark Easton , Maciej Mazur , Manidipto Mukherjee","doi":"10.1016/j.cossms.2024.101200","DOIUrl":"10.1016/j.cossms.2024.101200","url":null,"abstract":"<div><div>Intermetallic compounds (IMCs) are ordered solid-state compounds formed from chemical reactions between two or more metals exhibiting distinctive crystal arrangements and precise stoichiometric ratios, setting them apart from the matrix of the alloys. In general, IMCs are formed in three configurations: In the form of secondary phase precipitates distributed within the matrix phase, in the form of an IMC alloy, and at the bimetallic interfaces of functionally/transitionally graded structures. However, the IMCs as precipitates in the matrix phase, do not possess many challenges and are often desirable to improve the strength by imparting precipitation hardening. But, in the case of IMC alloys and bimetallic structures, the grain size and morphology of IMCs directly influence the integrity and durability of the developed structure. Given the inherent brittleness of most IMCs, the utilisation of IMCs in critical applications is substantially restricted. In response to this long-standing challenge, there has been extensive research into methods for improving the ductility of IMCs. This review emphasises two key methodologies: solidification-based and non-solidification-based approaches, both aiming to enhance IMC’s mechanical properties either by transitioning large to smaller grain microstructure or dendritic to equiaxed morphology. Solidification-based strategies, including heterogeneous nucleation and external-field-induced morphological alteration like the use of ultrasonic vibration, magnetic, and electric fields, are meticulously evaluated, uncovering research gaps. Non-solidification-based methods like severe plastic deformation and mechanical alloying are critically examined on the suitability of modern manufacturing techniques such as additive manufacturing. Among these, ultrasonic vibration emerges as the most promising for IMCs morphological transformation. Although static magnetic and electric fields exhibit potential, further investigation is required. Despite knowledge gaps, these techniques hold the potential to elevate IMC-containing alloy characteristics. Future research, especially for specific IMC groups and emerging manufacturing processes, is encouraged to propel metallurgical grain refinement or morphological transformation. In addition, the current and emerging application of various IMCs are thoroughly discussed to identify the importance of IMCs in various science and engineering domains. This comprehensive review enhances comprehension of IMC-based grain alteration, paving the way to design advanced materials across various applications.</div></div>","PeriodicalId":295,"journal":{"name":"Current Opinion in Solid State & Materials Science","volume":"33 ","pages":"Article 101200"},"PeriodicalIF":12.2,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142427355","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}
{"title":"Autonomous research and development of structural materials – An introduction and vision","authors":"D.B. Miracle , D.J. Thoma","doi":"10.1016/j.cossms.2024.101188","DOIUrl":"10.1016/j.cossms.2024.101188","url":null,"abstract":"<div><div>Blending artificial intelligence and automation enables the new field of autonomous research and development for materials science. A recent review of this still new field was evaluated to seek new opportunities, and structural materials were identified as a topic for future growth. A workshop was organized in Denver, CO on 20–22 April 2022 to explore this theme. The results from this workshop are given in this viewpoint set. The present paper describes four new themes introduced to the autonomous research and development field by structural materials: new artificial intelligence methods; a vision for rapid on-demand synthesis (RODS) of bulk (≥100<!--> <!-->gm) metallic and ceramic materials; new methods for measuring properties; and a new synergy between materials development and engineering design. The remaining papers in this viewpoint set present ideas and discussions from the Denver workshop and more in-depth presentations of major workshop themes.</div></div>","PeriodicalId":295,"journal":{"name":"Current Opinion in Solid State & Materials Science","volume":"33 ","pages":"Article 101188"},"PeriodicalIF":12.2,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142427390","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}
Yijia Fan , Ran An , Jianshi Tang, Yijun Li, Ting Liu, Bin Gao, He Qian, Huaqiang Wu
{"title":"Monolithic 3D integration as a pathway to energy-efficient computing and beyond: From materials and devices to architectures and chips","authors":"Yijia Fan , Ran An , Jianshi Tang, Yijun Li, Ting Liu, Bin Gao, He Qian, Huaqiang Wu","doi":"10.1016/j.cossms.2024.101199","DOIUrl":"10.1016/j.cossms.2024.101199","url":null,"abstract":"<div><div>As emerging technologies like artificial intelligence (AI) and big data continue to evolve, the demand for high-performance computing (HPC) has been increasing, driving the development of computing chips towards greater energy efficiency and multifunctionality. Monolithic 3D integration (M3D) is poised to be a key enabling technology, by vertically stacking multiple functional layers made of backend-of-the-line (BEOL)-compatible devices on top of Si circuits and interconnecting them with high-density interlayer vias (ILVs). Currently, contenders for functional materials and devices in M3D include carbon nanotubes, two-dimensional (2D) materials, oxide semiconductors and a variety of emerging memories, such as resistive random-access memory (RRAM). This article first discusses the key properties and latest research developments of those materials and their device applications. As a representative example, we then review the recent progress on RRAM-based M3D architectures that integrate memory, computing, and other functional elements to facilitate computing-in-memory (CIM). Finally, we further discuss the opportunities and challenges of M3D as a promising pathway to energy-efficient computing.</div></div>","PeriodicalId":295,"journal":{"name":"Current Opinion in Solid State & Materials Science","volume":"33 ","pages":"Article 101199"},"PeriodicalIF":12.2,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142427391","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}
Han Fu , Liyan Zhai , Hongyu Wang , Melody M.H. Li , Gerard C.L. Wong , Yue Zhang
{"title":"SARS-CoV-2 viral remnants and implications for inflammation and post-acute infection sequelae","authors":"Han Fu , Liyan Zhai , Hongyu Wang , Melody M.H. Li , Gerard C.L. Wong , Yue Zhang","doi":"10.1016/j.cossms.2024.101191","DOIUrl":"10.1016/j.cossms.2024.101191","url":null,"abstract":"<div><div>At present, we do not understand precisely how the SARS-CoV-2 coronavirus induces a spectrum of immune responses in different infected hosts, including severe inflammation in some, or how post-acute infection sequelae come about. In this review, we consider a conceptual framework whereby the virus itself is a reservoir of peptide motifs with pro-inflammatory activity. These motifs can potentially be liberated by highly variable proteolytic processing by the host. We focus on the ability of viral peptide motifs that can mimic innate immune peptides (more commonly known as ‘antimicrobial peptides’ (AMPs)). AMPs (and their ‘xenoAMP’ mimics) are not themselves pathogen-associated molecular patterns (PAMPs) that activate innate immunity via recognition by host pattern recognition receptors (PRRs) but can strongly amplify PRR activation via promoting multivalent PAMP presentation. An important mechanism in the host’s immune amplification machinery and is implicated in a range of autoimmune conditions, including lupus and rheumatoid arthritis, which are among the sequelae of COVID-19. We review experiments that show AMPs and SARS-CoV-2-derived xenoAMP can assemble with PAMPs such as dsRNA into pro-inflammatory complexes, resulting in cooperative, multivalent immune recognition by PRRs and grossly amplified inflammatory responses, a phenomenon generally not observed in harmless coronavirus homologs. We also review the persistence of viral remnants from other viral infections and their association with inflammatory sequelae long after the infection has been cleared.</div></div>","PeriodicalId":295,"journal":{"name":"Current Opinion in Solid State & Materials Science","volume":"33 ","pages":"Article 101191"},"PeriodicalIF":12.2,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142315828","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}