Pub Date : 2026-01-07DOI: 10.1016/j.matt.2025.102603
Hang Hu , Shengyu Tao
Mechano-electrochemical signals are vital for battery diagnostics but have lacked direct interpretability for chemical experts. Fang et al. introduce mechano-electrochemical impedance spectroscopy (MEIS), a frequency-domain framework that decodes mechanical responses. This technique links mechanical response to electrochemical level ion dynamics, unlocking a powerful, interpretable new dimension for assessing broader energy storage systems.
{"title":"Unlocking hidden battery mechanistic insights: A novel mechano-electrochemical impedance spectroscopy approach","authors":"Hang Hu , Shengyu Tao","doi":"10.1016/j.matt.2025.102603","DOIUrl":"10.1016/j.matt.2025.102603","url":null,"abstract":"<div><div>Mechano-electrochemical signals are vital for battery diagnostics but have lacked direct interpretability for chemical experts. Fang et al. introduce mechano-electrochemical impedance spectroscopy (MEIS), a frequency-domain framework that decodes mechanical responses. This technique links mechanical response to electrochemical level ion dynamics, unlocking a powerful, interpretable new dimension for assessing broader energy storage systems.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 1","pages":"Article 102603"},"PeriodicalIF":17.5,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145908667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-07DOI: 10.1016/j.matt.2025.102415
Lixin Zhang , Bin Luo , Jinlong Wang , Tao Liu , Mingchao Chi , Chenchen Cai , Shuangxi Nie
With technological advancements, the demand for self-powered wearable electronics continues to grow. However, conventional triboelectric materials face a trade-off between lightweight properties and robustness, limiting their application in wearable electronics. The flexible and efficient cellulosic triboelectric aerogel, demonstrating remarkable advantages in unifying lightweight and robust properties, has emerged as an ideal candidate. This review summarizes recent advances in lightweight and robust cellulosic triboelectric aerogels. The unique advantages of cellulosic triboelectric aerogels are discussed. The design strategies for cellulosic triboelectric aerogels are systematically summarized, including structural design and triboelectric performance enhancement. The applications of cellulosic triboelectric aerogels in self-powered portable electronics are outlined, including energy harvesting and self-powered sensing. Finally, future research directions for cellulosic triboelectric aerogels are discussed, including the study and modification of novel cellulose aerogels, device structural design and optimization, multifunctional integration, the development of implantable systems, and scalable manufacturing processes combined with advanced equipment.
{"title":"Lightweight and robust cellulosic triboelectric aerogels: Design, properties, and applications","authors":"Lixin Zhang , Bin Luo , Jinlong Wang , Tao Liu , Mingchao Chi , Chenchen Cai , Shuangxi Nie","doi":"10.1016/j.matt.2025.102415","DOIUrl":"10.1016/j.matt.2025.102415","url":null,"abstract":"<div><div>With technological advancements, the demand for self-powered wearable electronics continues to grow. However, conventional triboelectric materials face a trade-off between lightweight properties and robustness, limiting their application in wearable electronics. The flexible and efficient cellulosic triboelectric aerogel, demonstrating remarkable advantages in unifying lightweight and robust properties, has emerged as an ideal candidate. This review summarizes recent advances in lightweight and robust cellulosic triboelectric aerogels. The unique advantages of cellulosic triboelectric aerogels are discussed. The design strategies for cellulosic triboelectric aerogels are systematically summarized, including structural design and triboelectric performance enhancement. The applications of cellulosic triboelectric aerogels in self-powered portable electronics are outlined, including energy harvesting and self-powered sensing. Finally, future research directions for cellulosic triboelectric aerogels are discussed, including the study and modification of novel cellulose aerogels, device structural design and optimization, multifunctional integration, the development of implantable systems, and scalable manufacturing processes combined with advanced equipment.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 1","pages":"Article 102415"},"PeriodicalIF":17.5,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145908668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-07DOI: 10.1016/j.matt.2025.102491
Feng Tao , Chenkai Sun , Yingze Li , Yingying Wang , Peng Ning , Xiaolei Chen , Donglei Yang , Rui Gao , Yuan Li , Chang Xu , Zihan Guo , Haotian Chen , Xing Fan , Li Peng , Cheng Lv , Xinjian Fan , Chang Chen , Yu Cheng
Nanomotors offer a promising strategy for cancer mechanotherapy by harnessing programmable motion to induce lysosomal mechanoporation. Although generating localized pressure in lysosomes is achievable via adjusting the size or assembly of nanomotors, applying high pressure at the sub-nanometer scale remains challenging. Herein, we present an atom-edged magnetic nanomotor (MagGO) coupled with a three-dimensional rotating fluctuating magnetic field (3D MF) for lysosomal mechanoporation. The MagGO integrates the 0.83 ± 0.06-nm monolayer graphene oxide and assembled cubic magnetic nanomotors, leveraging a sub-nanometer-scale rigid edge with high saturation magnetization. Compared with the rotation or oscillation motion of 19.3 ± 2.3-nm cubic nanomotors, the field programmed rotational-bouncing motion of MagGO increases the localized pressure by 8.1- to 37.5-fold. MagGO can be internalized in lysosomes and achieve mechanoporation via rotational-bouncing motion for cancer destruction. It overcomes the pressure generation limitation of conventional nanomotors, pioneering the design of sub-nanometer-scale nanomotors for precise mechanotherapy.
{"title":"Rotational-bouncing nanomotors with atomic edges for lysosomal mechanoporation","authors":"Feng Tao , Chenkai Sun , Yingze Li , Yingying Wang , Peng Ning , Xiaolei Chen , Donglei Yang , Rui Gao , Yuan Li , Chang Xu , Zihan Guo , Haotian Chen , Xing Fan , Li Peng , Cheng Lv , Xinjian Fan , Chang Chen , Yu Cheng","doi":"10.1016/j.matt.2025.102491","DOIUrl":"10.1016/j.matt.2025.102491","url":null,"abstract":"<div><div>Nanomotors offer a promising strategy for cancer mechanotherapy by harnessing programmable motion to induce lysosomal mechanoporation. Although generating localized pressure in lysosomes is achievable via adjusting the size or assembly of nanomotors, applying high pressure at the sub-nanometer scale remains challenging. Herein, we present an atom-edged magnetic nanomotor (MagGO) coupled with a three-dimensional rotating fluctuating magnetic field (3D MF) for lysosomal mechanoporation. The MagGO integrates the 0.83 ± 0.06-nm monolayer graphene oxide and assembled cubic magnetic nanomotors, leveraging a sub-nanometer-scale rigid edge with high saturation magnetization. Compared with the rotation or oscillation motion of 19.3 ± 2.3-nm cubic nanomotors, the field programmed rotational-bouncing motion of MagGO increases the localized pressure by 8.1- to 37.5-fold. MagGO can be internalized in lysosomes and achieve mechanoporation via rotational-bouncing motion for cancer destruction. It overcomes the pressure generation limitation of conventional nanomotors, pioneering the design of sub-nanometer-scale nanomotors for precise mechanotherapy.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 1","pages":"Article 102491"},"PeriodicalIF":17.5,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145908702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-07DOI: 10.1016/j.matt.2025.102611
Connor Wells , Yuqing Lin , Yan Li , Dominque Lungwitz , Steve Cranford
In this Matter of Opinion, the members of the editorial team at Matter each highlight two of their favorite articles from the prior year while looking ahead at planned events for 2026.
{"title":"Matter 2025 editorial picks and 2026 anticipation","authors":"Connor Wells , Yuqing Lin , Yan Li , Dominque Lungwitz , Steve Cranford","doi":"10.1016/j.matt.2025.102611","DOIUrl":"10.1016/j.matt.2025.102611","url":null,"abstract":"<div><div>In this Matter of Opinion, the members of the editorial team at <em>Matter</em> each highlight two of their favorite articles from the prior year while looking ahead at planned events for 2026.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 1","pages":"Article 102611"},"PeriodicalIF":17.5,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145908826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-07DOI: 10.1016/j.matt.2025.102521
Steve Cranford
{"title":"The art of the appeal","authors":"Steve Cranford","doi":"10.1016/j.matt.2025.102521","DOIUrl":"10.1016/j.matt.2025.102521","url":null,"abstract":"","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 1","pages":"Article 102521"},"PeriodicalIF":17.5,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145908703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-07DOI: 10.1016/j.matt.2025.102418
Hengdi Zhao , Xiuquan Zhou , Hyowon Park , Tianqi Deng , Brandon Wilfong , Alann P. Au II , Samuel E. Pate , Craig M. Brown , Hui Wu , Tushar Bhowmick , Tessa McNamee , Ravhi Kumar , Yu-Sheng Chen , Zhi-Li Xiao , Russell Hemley , Weizhao Cai , Shanti Deemyad , Duck-Young Chung , Stephan Rosenkranz , Mercouri G. Kanatzidis
Condensed matter systems with coexisting Dirac cones and flat bands and a switchable control between them within a single system are desirable but remarkably uncommon. Here, we report a layered quantum material system, KxNi4S2 (0 ≤ x ≤ 1), that simultaneously hosts both characteristics without involving typical Kagome/honeycomb lattices. Enabled by a topochemical K-deintercalation process, the Fermi surface can be fine-tuned continuously over a wide range of energies. Consequently, a non-magnetic Dirac-metal state with a topological nontrivial Z2 index of 1;(000), supported by first-principles calculations and high mobility up to 1,471 cm2V−1s−1, is observed on the K-rich x = 1 side, whereas a flat-band-induced antiferromagnetic state with TN up to 10.1 K emerges as the K-content approaches 0. The KxNi4S2 system offers a versatile platform for exploring emerging phenomena and underscores a viable pathway for in situ control of quantum materials dominated by Dirac cones, flat bands, and their interplay.
{"title":"Evolution from topological Dirac metal to flat-band-induced antiferromagnet in layered KxNi4S2 (0 ≤ x ≤ 1)","authors":"Hengdi Zhao , Xiuquan Zhou , Hyowon Park , Tianqi Deng , Brandon Wilfong , Alann P. Au II , Samuel E. Pate , Craig M. Brown , Hui Wu , Tushar Bhowmick , Tessa McNamee , Ravhi Kumar , Yu-Sheng Chen , Zhi-Li Xiao , Russell Hemley , Weizhao Cai , Shanti Deemyad , Duck-Young Chung , Stephan Rosenkranz , Mercouri G. Kanatzidis","doi":"10.1016/j.matt.2025.102418","DOIUrl":"10.1016/j.matt.2025.102418","url":null,"abstract":"<div><div>Condensed matter systems with coexisting Dirac cones and flat bands and a switchable control between them within a single system are desirable but remarkably uncommon. Here, we report a layered quantum material system, K<sub>x</sub>Ni<sub>4</sub>S<sub>2</sub> (0 ≤ x ≤ 1), that simultaneously hosts both characteristics without involving typical Kagome/honeycomb lattices. Enabled by a topochemical K-deintercalation process, the Fermi surface can be fine-tuned continuously over a wide range of energies. Consequently, a non-magnetic Dirac-metal state with a topological nontrivial Z<sub>2</sub> index of 1;(000), supported by first-principles calculations and high mobility up to 1,471 cm<sup>2</sup>V<sup>−1</sup>s<sup>−1</sup>, is observed on the K-rich x = 1 side, whereas a flat-band-induced antiferromagnetic state with T<sub>N</sub> up to 10.1 K emerges as the K-content approaches 0. The K<sub>x</sub>Ni<sub>4</sub>S<sub>2</sub> system offers a versatile platform for exploring emerging phenomena and underscores a viable pathway for <em>in situ</em> control of quantum materials dominated by Dirac cones, flat bands, and their interplay.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 1","pages":"Article 102418"},"PeriodicalIF":17.5,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145043627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-07DOI: 10.1016/j.matt.2025.102419
Muhammad Turab Ali Khan , Gaurav Gardi , Ren Hao Soon , Mingchao Zhang , Metin Sitti
Controlling fluidic flows in active droplets is crucial in developing intelligent models to understand and mimic single-celled microorganisms. Typically, these fluidic flows are affected by the interfacial dynamics of chemical agents. We found that these flows can be reconfigured by the mere presence of an anisotropic solid boundary embedded within active droplets. Spontaneous fluidic flows dynamically orient an embedded magnetic cluster, and the magnetic cluster, when realigned, causes these flows to reorient, thus providing control over the propulsion dynamics of chemotactic emulsions. When continuously perturbed, achiral emulsions exhibit emergent chiral motion with rotating fluidic flows. Such solid-fluid interactions occur in a number of self-propelling oil droplet systems, thereby enabling control over the emergent collective behaviors of chemically distinct active droplets.
{"title":"Perturbing dynamics of active emulsions and their collectives","authors":"Muhammad Turab Ali Khan , Gaurav Gardi , Ren Hao Soon , Mingchao Zhang , Metin Sitti","doi":"10.1016/j.matt.2025.102419","DOIUrl":"10.1016/j.matt.2025.102419","url":null,"abstract":"<div><div>Controlling fluidic flows in active droplets is crucial in developing intelligent models to understand and mimic single-celled microorganisms. Typically, these fluidic flows are affected by the interfacial dynamics of chemical agents. We found that these flows can be reconfigured by the mere presence of an anisotropic solid boundary embedded within active droplets. Spontaneous fluidic flows dynamically orient an embedded magnetic cluster, and the magnetic cluster, when realigned, causes these flows to reorient, thus providing control over the propulsion dynamics of chemotactic emulsions. When continuously perturbed, achiral emulsions exhibit emergent chiral motion with rotating fluidic flows. Such solid-fluid interactions occur in a number of self-propelling oil droplet systems, thereby enabling control over the emergent collective behaviors of chemically distinct active droplets.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 1","pages":"Article 102419"},"PeriodicalIF":17.5,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145043626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-07DOI: 10.1016/j.matt.2025.102523
Jiao Wu , Naisheng Jiang , Ming Xu
Electrolyte-electrode interfaces (EEIs) critically shape the performance, stability, and lifetime of energy storage systems, yet their buried complexity in structure, chemistry, and kinetics remains challenging to decode. This review synthesizes recent advances enabled by cryogenic electron microscopy, operando spectroscopy, and 3D tomography, which have uncovered interfacial heterogeneity, chemical evolution, and non-classical charge-transfer pathways. These findings revise static interphase models and explain discrepancies across systems once thought to be mechanistically similar. We highlight how integrated, multiscale diagnostics can resolve these differences and inform design. Building on this foundation, we examine emerging engineering strategies, including electrolyte reformulation, surface reconstruction, and artificial interphase design, that target specific interfacial failure modes. By bridging mechanism, measurement, and materials design, this review offers a road map for decoding and directing EEI behavior across diverse chemistries, from lithium-ion and solid-state batteries to supercapacitors, guiding next-generation energy devices toward greater reliability, efficiency, and control.
{"title":"From understanding to control: Unifying mechanistic insights and interface engineering in energy storage through advanced characterization","authors":"Jiao Wu , Naisheng Jiang , Ming Xu","doi":"10.1016/j.matt.2025.102523","DOIUrl":"10.1016/j.matt.2025.102523","url":null,"abstract":"<div><div>Electrolyte-electrode interfaces (EEIs) critically shape the performance, stability, and lifetime of energy storage systems, yet their buried complexity in structure, chemistry, and kinetics remains challenging to decode. This review synthesizes recent advances enabled by cryogenic electron microscopy, <em>operando</em> spectroscopy, and 3D tomography, which have uncovered interfacial heterogeneity, chemical evolution, and non-classical charge-transfer pathways. These findings revise static interphase models and explain discrepancies across systems once thought to be mechanistically similar. We highlight how integrated, multiscale diagnostics can resolve these differences and inform design. Building on this foundation, we examine emerging engineering strategies, including electrolyte reformulation, surface reconstruction, and artificial interphase design, that target specific interfacial failure modes. By bridging mechanism, measurement, and materials design, this review offers a road map for decoding and directing EEI behavior across diverse chemistries, from lithium-ion and solid-state batteries to supercapacitors, guiding next-generation energy devices toward greater reliability, efficiency, and control.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 1","pages":"Article 102523"},"PeriodicalIF":17.5,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145908468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-07DOI: 10.1016/j.matt.2025.102574
Xiangkun Elvis Cao
In this Matter of Opinion, Xiangkun (Elvis) Cao reflects on how his humble background from rural China sparked his scientific curiosity. Cao also shares how his unconventional journey spanning academia, policy, entrepreneurship, and industry consulting has shaped his vision as he starts his independent scientific career at Imperial College London, aiming to impact climate and sustainability at the convergence of technology, business, and policy.
在本书中，曹翔坤回顾了他来自中国农村的卑微背景如何激发了他对科学的好奇心。曹还分享了他在伦敦帝国理工学院（Imperial College London）开始独立科学生涯时，跨越学术界、政策、创业和行业咨询的非常规旅程如何塑造了他的愿景，他的目标是通过技术、商业和政策的融合来影响气候和可持续发展。
{"title":"An unconventional path to convergence","authors":"Xiangkun Elvis Cao","doi":"10.1016/j.matt.2025.102574","DOIUrl":"10.1016/j.matt.2025.102574","url":null,"abstract":"<div><div>In this Matter of Opinion, Xiangkun (Elvis) Cao reflects on how his humble background from rural China sparked his scientific curiosity. Cao also shares how his unconventional journey spanning academia, policy, entrepreneurship, and industry consulting has shaped his vision as he starts his independent scientific career at Imperial College London, aiming to impact climate and sustainability at the convergence of technology, business, and policy.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 1","pages":"Article 102574"},"PeriodicalIF":17.5,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145908705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-07DOI: 10.1016/j.matt.2025.102474
Dhanush U. Jamadgni , Paul Gregory , Xiong Ye Xiao , Andrew Martin , Daisy Kiptoo , Alana M. Jones , Kien Trung Nguyen , Souvik Banerjee , Anastasia Visheratina , Nancy Muyanja , Boyce Chang , Paul Bogdan , Nicholas A. Kotov , Martin Thuo
Granular matter processing necessitates fluidization for predictable and coherent flow. In agriculture, for example, toxic solid lubricants (talc or microplastics) are often deployed as fluency agents, contaminating fragile (e.g., waterways) or precious (e.g., farmlands or pollinators) ecosystems. We applied graph theory to design bio-derived fluency agents with seeds as a model system of complex granular matter. Adopting graph theory, we evaluated multibody effects and transient clustering in 2D and 3D motion of seeds. Time-dependent graph characteristics (e.g., Ollivier-Ricci curvature, fractality, and multifractal spectrum) reveal that modified cellulose-derived lubricants effectively disrupt clustering and enhance seed flow. Flow energy trends support graph-based inferences and confirm improved coherent flow. Lubricity was confirmed with a stationary seed metering system and field trials. The developed materials are biodegradable, sustainable, and field-deployable replacements of current toxic products.
{"title":"Graph theory-based bio-derived solid lubricant","authors":"Dhanush U. Jamadgni , Paul Gregory , Xiong Ye Xiao , Andrew Martin , Daisy Kiptoo , Alana M. Jones , Kien Trung Nguyen , Souvik Banerjee , Anastasia Visheratina , Nancy Muyanja , Boyce Chang , Paul Bogdan , Nicholas A. Kotov , Martin Thuo","doi":"10.1016/j.matt.2025.102474","DOIUrl":"10.1016/j.matt.2025.102474","url":null,"abstract":"<div><div>Granular matter processing necessitates fluidization for predictable and coherent flow. In agriculture, for example, toxic solid lubricants (talc or microplastics) are often deployed as fluency agents, contaminating fragile (e.g., waterways) or precious (e.g., farmlands or pollinators) ecosystems. We applied graph theory to design bio-derived fluency agents with seeds as a model system of complex granular matter. Adopting graph theory, we evaluated multibody effects and transient clustering in 2D and 3D motion of seeds. Time-dependent graph characteristics (e.g., Ollivier-Ricci curvature, fractality, and multifractal spectrum) reveal that modified cellulose-derived lubricants effectively disrupt clustering and enhance seed flow. Flow energy trends support graph-based inferences and confirm improved coherent flow. Lubricity was confirmed with a stationary seed metering system and field trials. The developed materials are biodegradable, sustainable, and field-deployable replacements of current toxic products.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 1","pages":"Article 102474"},"PeriodicalIF":17.5,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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