Matter最新文献

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The role of biomolecular building blocks on the cohesion of biomatter plastics 生物分子构建块对生物材料塑料内聚的作用

IF 17.3 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2025-03-05 DOI: 10.1016/j.matt.2024.101941

Ian R. Campbell , Ziyue Dong , Paul Grandgeorge , Andrew M. Jimenez , Emily R. Rhodes , Ella Lee , Scott Edmundson , Chinmayee V. Subban , Kayla G. Sprenger , Eleftheria Roumeli

Unaltered biological matter (biomatter) can be harnessed to fabricate cohesive, sustainable bioplastics. However, controlling the material properties of these bioplastics is challenging, as the contributions of different macromolecular building blocks to processability and performance are unknown. To deconvolute the roles of different classes of biomolecules, we developed experimental and computational methods to construct and analyze biomatter analogs composed of carbohydrates, proteins, and lipids. These analogs are intended to improve fundamental understanding of biomatter plastics. Spectroscopic analyses of biomatter analogs suggest that cohesion depends on protein aggregation during thermomechanical processing. Molecular dynamics simulations confirm that alterations to protein conformation and hydrogen bonding are likely the primary mechanisms underlying the formation of a cohesive, proteinaceous matrix. Simulations also corroborate experimental measurements highlighting the importance of hydrogen bonding and self-assembly between specific, small-molecule constituents. These conclusions may enable the engineering of next-generation biomatter plastics with improved performance.

未改变的生物物质（生物物质）可以用来制造有凝聚力的、可持续的生物塑料。然而，控制这些生物塑料的材料特性是具有挑战性的，因为不同的大分子构建块对可加工性和性能的贡献是未知的。为了解开不同种类生物分子的作用，我们开发了实验和计算方法来构建和分析由碳水化合物、蛋白质和脂质组成的生物物质类似物。这些类似物旨在提高对生物物质塑料的基本理解。生物物质类似物的光谱分析表明，内聚力取决于热机械加工过程中的蛋白质聚集。分子动力学模拟证实，蛋白质构象和氢键的改变可能是形成内聚蛋白质基质的主要机制。模拟还证实了实验测量结果，强调了特定小分子成分之间氢键和自组装的重要性。这些结论可能会使下一代生物材料塑料的工程性能得到改善。

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引用次数: 0

Giant berry curvature in amorphous ferromagnet Co2MnGa

IF 17.3 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2025-03-05 DOI: 10.1016/j.matt.2025.101988

Weiyao Zhao , Yao Zhang , Yuefeng Yin , Kaijian Xing , Shengqiang Zhou , Abdulhakim Bake , Golrokh Akhgar , David Cortie , Lei Chen , Xiaolin Wang , Kirrily C. Rule , Nikhil V. Medkehar , Simon Granville , Julie Karel

In amorphous materials, long-range translational order breaks down, and k is no longer a good quantum number; however, some of the phenomena, for instance ferromagnetic interactions and a mechanism similar to the Berry curvature, can be preserved. Here, we demonstrate a giant Berry-curvature-induced anomalous Hall effect and anomalous Hall angle in amorphous Co₂MnGa (a-CMG) thin films. Remarkably, the effect presents the same magnitude as high-quality crystalline CMG with the L2₁ structure. The elastic neutron scattering peak in a-CMG is centered close to the crystalline phase, indicating that the amorphous material presents similar local atomic environments and magnetic interactions. First-principles density functional theory calculations further show that the anomalous Hall conductivity arises only when the local environments in the amorphous structure are similar to the L2₁ phase. Our work strongly points to the application of low-cost, industry-compatible, and thermally stable amorphous topological materials in emerging electronic and spintronic applications.

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引用次数: 0

Energy reconversion of ultrasound on a piezoelectric hydrogel promotes ROS/CO generation and wound self-closure for infected chronic wound healing 压电水凝胶上的超声波能量再转换可促进 ROS/CO 生成和伤口自我闭合，促进感染性慢性伤口愈合

IF 17.3 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2025-03-05 DOI: 10.1016/j.matt.2025.101989

Shang Chi , Yaping Li , Tingting Ye , Jiawei Kang , Zhihui Xiang , Xiaoqing Kuang , Chenggang Yi , Yiying Qi , Wei Wang

This work developed a de novo sonosensitizer based on carnosine_zinc piezoelectric metal-organic frameworks (PMOFs) that possesses a prominent reactive oxygen species (ROS)-generating function, biocompatibility, and degradability. Further, the PMOF was modified by a carbon monoxide (CO) donor through a metal complexation reaction to result in a multifunctional CO-PMOF to launch CO/ROS-mediated antimicrobial under ultrasound (US). However, the heat generated during sonodynamic therapy (SDT) may harm wounds. To minimize the waste energy and promote wound self-closure rate, a strong adhesive, and rapid thermal-responsive contraction (52.4%, 4 min), injectable hydrogel was designed to load CO-PMOF. The resulting ultrasonic triple-responsive hydrogel (UTGel) exhibits an effective biofilm destruction capability based on a CO/ROS-mediated antimicrobial therapy. After administration in an infected diabetic skin wound model in mice, UTGel can efficiently harvest the thermal energy by the CO-PMOF under US to trigger a centripetal shrinkage of the hydrogel and guide rapid wound self-closure.

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引用次数: 0

Spray-fabrication of dual crosslinking porous hydrogel for evaporative cooling

IF 17.3 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2025-03-05 DOI: 10.1016/j.matt.2025.101994

Jiaying Xiao , Qi An

Thermal management is essential for industrial processes, especially in cooling electronic equipment. Spray cooling is effective but faces challenges such as water waste and droplet distribution. Ye Li et al. developed a porous hydrogel prepared using dual crosslinking strategy for efficient water rehydration, thereby enabling cycled application of evaporative cooling.

引用次数: 0

Lattice distortion boosted exceptional electromagnetic wave absorption in high-entropy diborides 晶格畸变促进高熵二硼化物对特殊电磁波的吸收

IF 17.3 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2025-03-05 DOI: 10.1016/j.matt.2025.102004

Fangchao Gu , Wu Wang , Hong Meng , Yiwen Liu , Lei Zhuang , Hulei Yu , Yanhui Chu

Electromagnetic pollution has emerged as a severe global issue due to the widespread use of wireless communication, which strongly requires high-performance electromagnetic wave absorbents. Here, we realize exceptional electromagnetic wave absorption performance with an effective absorption bandwidth of 7.2 GHz at an ultralow thickness of 1.5 mm in high-entropy diborides through a lattice distortion engineering strategy. Particularly, we rationally tailor the lattice distortion of high-entropy diborides by manipulating constituent metal elements, and the resultant metal vacancies and chemical nanoclusters are verified to result in enriched electromagnetic wave absorption mechanisms, including (1) metal vacancy-induced dipole polarization loss, (2) metal vacancy-induced conduction loss, and (3) chemical nanocluster-induced interfacial polarization loss. Our work provides a simple and universal approach for effectively enhancing the electromagnetic wave absorption performance of ceramic absorbents.

引用次数: 0

Single paper catalysts lowering the barriers to “disruptive” science

IF 17.3 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2025-03-05 DOI: 10.1016/j.matt.2024.11.027

Steve Cranford

Every academic paper published has a ripple effect across the body of scientific knowledge—some small, some large. Here, the rate of scientific progress as well as the disruptive nature of a single work is discussed through an analogy of catalysis.

引用次数: 0

Deciphering the stacking language of honeycomb bilayer materials

IF 17.3 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2025-03-05 DOI: 10.1016/j.matt.2025.101987

Jessica Arcudia , Thomas Heine , Gabriel Merino

Research into two-dimensional materials and their stacking configurations has significantly increased in recent years. Experimental and theoretical studies have revealed unexpected phenomena across various stacking forms. However, a major challenge in studying layered structures is the ambiguous nomenclature in the literature, which complicates comparisons between systems and may lead to omissions of specific stackings. This review addresses the need for a unified framework to categorize stacking arrangements of bilayer honeycomb materials from groups 13–15. We use a uniform ABC notation for nomenclature to facilitate comparative analysis while examining its limitations and emphasizing the need for a robust notation.

引用次数: 0

Hydrogel-based pressure sensors for electronic skin systems

IF 17.3 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2025-03-05 DOI: 10.1016/j.matt.2025.101992

Yidan Chen , Chenghui Lv , Xilu Ye , Jianfeng Ping , Yibin Ying , Lingyi Lan

The past few decades have witnessed the rapid development of electronic skin (e-skin) systems in various fields. Among the various sensors integrated into e-skin, pressure sensors are of paramount importance due to their ability to mimic the tactile sensing of human skin. Hydrogels have emerged as ideal materials for fabricating pressure sensors, owing to unique similarities to biological tissues and their versatility and flexibility in tailoring mechanical and electrical properties. This review provides a comprehensive overview of hydrogel-based pressure sensors for e-skin. It begins with summarizing the transduction mechanisms of different types of pressure sensors, followed by a detailed analysis of the classification of conductive hydrogels. Additionally, various structure design strategies aimed at enhancing sensing performance are summarized. Subsequently, promising applications, such as healthcare monitoring, tactile recognition, and human-machine interactions, are highlighted. Finally, the challenges and prospects of sensors are discussed, aiming to inspire further innovations in this captivating area of research.

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引用次数: 0

Daily multi-segment capsule for time-tunable drug release toward enhanced polypharmacy adherence 每日多段胶囊，时间可调的药物释放，以提高多药依从性

IF 17.3 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2025-03-05 DOI: 10.1016/j.matt.2024.101947

Amal Abbas , Janna Sofia Sage-Sepulveda , Kuldeep Mahato , Maryam Siddiqui , Aishwarya Balaje , Baha Öndeş , Joseph Wang

Ensuring patient compliance is crucial for effective treatment, particularly in cases of polypharmacy. To tackle this issue, we developed a time-tunable multi-segment capsule for tailored daylong delivery of multiple drugs or dosages. In this multi-segment daily capsule (MSDC), each drug payload is spatially isolated by an enteric barrier. By controlling the polymer density within the barrier matrix, the dissolution time and release of each corresponding drug can be tuned. Embedding robotic capabilities within specific drug segments facilitates immediate drug disintegration for pain management and emergency response. In vitro testing of robotic levodopa MSDCs demonstrated a timed, multiple-dose release profile offering fast, intermediate, and sustained releases to address motor symptoms in persons with Parkinson’s disease. Tuning the loading of Mg micromotors allows them to function as proton pump inhibitors for pH-responsive intervention in gastric disorders. The MSDC promotes personalized medication and simplifies complex treatment regimens by customizing the therapeutic payload and the release time.

确保患者依从性是有效治疗的关键，尤其是在使用多种药物的情况下。为了解决这个问题，我们开发了一种时间可调的多段胶囊，用于量身定制多种药物或剂量的全天给药。在这种多段日用胶囊（MSDC）中，每种药物有效载荷都被肠道屏障在空间上隔离开来。通过控制屏障基质内的聚合物密度，可以调整每种相应药物的溶解时间和释放量。将机器人功能嵌入特定的药物片段中，有利于药物的即时崩解，从而达到止痛和应急的目的。对机器人左旋多巴 MSDC 进行的体外测试表明，其定时、多剂量释放特性可提供快速、中间和持续释放，以解决帕金森病患者的运动症状。调整镁微电机的负载量可使其发挥质子泵抑制剂的作用，对胃病进行 pH 响应干预。MSDC 通过定制治疗载荷和释放时间，促进了个性化用药，简化了复杂的治疗方案。

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引用次数: 0

Long-span delivery of differentiable hybrid robots for restoration of neural connections 用于神经连接恢复的可微混合机器人的大跨度交付

IF 17.3 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2025-03-05 DOI: 10.1016/j.matt.2024.101942

Jie Shen (沈杰) , Yun Wang (王芸) , Min Yao (姚敏) , Shubo Liu (刘书博) , Zhiguang Guo (郭志光) , Li Zhang (张立) , Ben Wang (王奔)

Lumbar puncture is a minimally invasive technique for delivering drugs into cerebrospinal fluid (CSF). However, its effectiveness is limited by the spine’s extensive length and the narrow, complex CSF spaces, which hinder efficient passive diffusion of therapeutic agents. Here, we have engineered a differentiable stem cell-assembled soft robot (SCASR) by using a three-dimensional self-assembly process in liquid marbles. These biologically viable robots can interface with the tissues inside the CSF, adapting to the complex surroundings while navigating. With X-ray imaging and magnetic actuation, the SCASRs can be guided toward targeted regions. The SCASRs autonomously disassemble into individual cells, which then differentiate into neural cells to facilitate the restoration of neural connections, thereby aiding the recovery of paralyzed lower limbs. The proposed strategy provides an imaging-based therapeutic system for nerve injury, enabling accessibility of hard-to-reach spinal regions and facilitating efficient therapy in minimally invasive manner, by means of soft microrobots.

腰椎穿刺是一种将药物送入脑脊液（CSF）的微创技术。然而，其有效性受到脊柱长度和狭窄、复杂的脑脊液间隙的限制，这阻碍了治疗剂的有效被动扩散。在这里，我们设计了一个可分化的干细胞组装软机器人（SCASR），通过在液体大理石中使用三维自组装过程。这些生物上可行的机器人可以与脑脊液内的组织结合，在导航时适应复杂的环境。通过x射线成像和磁驱动，scasr可以被引导到目标区域。SCASRs自主分解成单个细胞，然后分化成神经细胞，促进神经连接的恢复，从而帮助瘫痪的下肢恢复。该策略为神经损伤提供了一种基于成像的治疗系统，使难以到达的脊柱区域能够进入，并通过软微型机器人以微创方式促进有效的治疗。

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引用次数: 0

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