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Recent advances in molecularly imprinted polymers toward biomedical healthcare devices

Biosensors and Bioelectronics 2025年 287卷 117637页

作者： Seo, Youngjun Kim, Yonghwan Kim, Jaeheung Jung, Hyo Gi Jang, Jae Won Kim, Hyunji Hwang, Kyo Seon Lee, Dongtak Lee, Sang Won Lee, Jeong Hoon Yoon, Dae Sung School of Biomedical Engineering Korea University Seoul02841 Korea Republic of Interdisciplinary Program in Precision Public Health Korea University Seoul02841 Korea Republic of Department of Clinical Pharmacology and Therapeutics College of Medicine Kyung Hee University Seoul02447 Korea Republic of Department of Bioengineering & Nano-bioengineering Research Center for Bio Materials and Process Development Incheon National University Incheon22012 Korea Republic of Division of Bioengineering Incheon National University Incheon22012 Korea Republic of Terasaki Institute for Biomedical Innovation Los AngelesCA90064 United States KU-KIST Graduate School of Converging Science and Technology Korea University Seoul02841 Korea Republic of Department of Integrative Energy Engineering College of Engineering Korea University Seoul02841 Korea Republic of Astrion Inc Seoul02841 Korea Republic of

Following the increase in the global aging population, the importance of monitoring various disease-related biomarkers at an early stage has increased to ensure the health of the elderly. In an aging society, point-of-care (POC) systems are needed to care for elderly people who have physical and mental disorders. In light of the increasing prominence of POC systems, there is a growing effort to address the limitations associated with conventional receptors in wearable devices by substituting them with molecularly imprinted polymer (MIP). MIPs are well-known synthetic receptors engineered with specific binding cavities based on the "lock and key" principle. They could be synthesized in various configurations depending on specific types of monomers and templates. Compared to conventional receptors such as antibodies and aptamers, MIPs exhibit outstanding advantages, including good stability, cost-effectiveness, ease of synthesis, reusability, and broad applicability. These advantages have led to their extensive application in biomedical healthcare devices. This review summarizes a comparative analysis of sensors utilized for the detection of disease-specific biomarkers through diverse MIP applications and methodologies. Furthermore, we evaluated recent advancements in the miniaturization of MIPs and their integration with wearable biomedical devices for comprehensive healthcare monitoring applications. Finally, we delineated the existing limitations that need to be surmounted for the effective implementation of MIP-based biomedical devices and outlined future objectives for the enhancement of wearable and wireless biomedical healthcare monitoring devices. © 2025 Elsevier B.V.

关键词： Diseases

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Immobilization of poly(hexamethylene biguanide) to cellulose acetate- and cellulose-based nanofiber membranes for antibacterial and cytotoxic studies

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Biochemical engineering Journal 2024年 205卷

作者： Dinh Thi My Huong Chi-Yun Wang Pin-Yi Chen Chien Wei Ooi Xue Er Crystal Thew Bing-Lan Liu Chen-Yaw Chiu Shen-Long Tsai Kuei-Hsiang Chen Yu-Kaung Chang Department Chemical Technology and Environment University of Technology and Education the University of Da Nang Da Nang City Viet Nam Department Chemical Engineering/ Graduate School of Biochemical Engineering Ming Chi University of Technology New Taipei City 243303 Taiwan Department Chemical Engineering National Taiwan University of Science and Technology Taipei City 10607 Taiwan International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City 243303 Taiwan Bone and Joint Research Centre Chang Gung Memorial Hospital Taoyuan City 333423 Taiwan Research Center for Intelligent Medical Devices Ming Chi University of Technology New Taipei City 243303 Taiwan Chemical Engineering Department School of Engineering Monash University Malaysia Jalan Lagoon Selatan Bandar Sunway Selangor 47500 Malaysia Advanced Engineering Platform School of Engineering Monash University Malaysia Jalan Lagoon Selatan 47500 Bandar Sunway Selangor Malaysia Department of Applied Chemistry Chaoyang University of Technology Taichung 413310 Taiwan Department of Chemical Engineering and Materials Science Yuan Ze University Zhongli Dist Taoyuan City 320315 Taiwan

To develop the environmental antibacterial membrane, the physical attachments of poly (hexamethylene biguanide) hydrochloride (PHMB) on the cellulose acetate (CA) and regenerated cellulose (RC) electrospun nanofiber membranes were employed. The immobilization of PHMB increased the antibacterial efficacy ( AE , %) of nanofiber membranes from 65.67% to approximately 86.13% for CA-PHMB and from 35.09% to approximately 100% for RC-PHMB. The results of the chemical and physical characteristics indicate that the degree of deacetylation of CA nanofiber, the surface charge of the nanofiber, and the density of PHMB immobilized onto the nanofiber primarily affect the antibacterial efficacy. The use of mathematical models, such as the Temkin equilibrium model for PHMB immobilization and the Monod-type model for the relationship between antibacterial activity and immobilization density of PHMB provides a deeper understanding of the interactions and kinetics involved. The rapid achievement of ∼100% AE after only 10 min of contact with Escherichia coli ( E. coli ) is a notable finding, indicating the quick and efficient antibacterial action of RC-PHMB nanofiber membranes. Furthermore, maintaining approximately 100% AE after 20 days of storage underscores the long-term stability of PHMB immobilized on RC nanofiber membranes. The findings suggest that RC-PHMB holds great promise as an antibacterial material for biomedical applications, food packaging industries, and filtration or treatment of water.

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Hierarchical Assembly and Dynamic Reinforced Woven Biotextiles for Anisotropic and Viscoelastic Tendon Tissue Regeneration

SSRN

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SSRN 2025年

作者： Wang, Tzu-Wei Chen, Hao-Xuan Chen, Shih-Heng Chen, Shih-Hsien Liu, Yu-Chung Wu, Chen-Te Kuan, Chen-Hsiang Huang, Wei-Yuan Department of Materials Science and Engineering National Tsing Hua University Hsinchu Taiwan Department of Plastic and Reconstructive Surgery Chang-Gung Memorial Hospital Chang-Gung University Medical College Taoyuan Taiwan Department of Biomedical Engineering University of Michigan Ann ArborMI United States Department of Medical Imaging and Intervention Chang Gung Memorial Hospital Taoyuan Taiwan Taipei Taiwan Graduate Institute of Clinical Medicine College of Medicine National Taiwan University Taipei Taiwan Research Center for Developmental Biology and Regenerative Medicine National Taiwan University Taipei Taiwan Precision Medicine Program National Tsing Hua University Hsinchu Taiwan Institute of Oral Biology National Yang Ming Chiao Tung University Taiwan Department of Biomedical Engineering Linkou Chang Gung Memorial Hospital Taiwan

Currently used tendon grafts, including autologous and allogeneic options, are hindered by limitations such as availability, donor site morbidity, and the risk of immune rejection. While offering potential alternatives, artificial tendons still have drawbacks, including creep, stress relaxation, fatigue, and poor tissue integration. To overcome these challenges with unmet clinical needs, this study develops a biomimetic tendon graft using interfacial polyelectrolyte complexation spinning techniques combined with customized twisting and weaving reinforcements. Hierarchical tendon biomimicry addresses anatomical and physiological features crucial for tendon repair and regeneration. The dynamic strengthening culture and growth factor incorporation with spatial-controlled delicacy further enhance the integration and functionality of the substitute with tendon-related protein secretion, both of which are valuable characteristics in native tissues. As demonstrated in fatigue tests, the durability and viscoelasticity of the braided scaffolds under loading-unloading cycles highlight their suitability for daily activities. This bottom-up assembly approach replicates the physiological, biological, and mechanical properties of native tendon tissue. For future perspective, this study represents a significant advancement in tendon tissue engineering, offering bioinspired woven biotextiles that hold great promise for tendon replacement. © 2025, The Authors. All rights reserved.

关键词： Tissue regeneration

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Failure analysis of hanger for superheater tube

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AIP Conference Proceedings 2020年第1期2262卷

作者： Husaini Ardy Deri Andika Bangun Arie Wibowo 1Materials Science and Engineering Research Group Bandung Institute of Technology Bandung 40132 Indonesia 2Graduate Program of Materials Engineering Department Bandung Institute of Technology Bandung 40132 Indonesia

Seven out of 12 pieces of hangers for superheater pipe were failed after one year in service. Failure analysis has been conducted to find out the root cause of failure. Hanger material is ASTM A182 Grade F22 Class 1. Fractography examinations revealed that the fracture mode is due to mechanical fatigue. Tensile test results show a tensile strength of 1015 MPa which is far beyond the minimum standard requirement of 415 MPa. The hardness of the failed hanger is between 270 to 325 HB, and un-failed hanger is around 245 HB, which are higher than the maximum standard requirement of 170 HB. The Charpy impact energy is 3 J, far below the standard requirement of 54 J. The microstructure in the bend area and the straight section contained tempered martensite and ferrite. Further examinations were conducted by heat treatment simulations to explore properties after heat treatment. materials are subjected to full annealing treatment at 900°C, and normalizing at 955°C followed by tempering at 675°C. The average hardness is 154 HB after annealing, and 235 HB after normalizing and tempering. According to heat treatment simulation results, hanger material was supposed to be supplied under annealing condition where the hardness fulfils the standard requirement. Failure of superheater pipe hanger is due to improper heat treatment which promote brittleness and initiate premature crack during start-up. Crack initiation might also occur during post forging quenching. Fatigue crack propagation occur during service by small amplitude vibration.

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The ALCHEMI atlas: principal component analysis reveals starburst evolution in NGC 253

arXiv

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arXiv 2024年

作者： Harada, Nanase Meier, David S. Martín, Sergio Muller, Sebastien Sakamoto, Kazushi Saito, Toshiki Gorski, Mark D. Henkel, Christian Tanaka, Kunihiko Mangum, Jeffrey G. Aalto, Susanne Aladro, Rebeca Bouvier, Mathilde Colzi, Laura Emig, Kimberly L. Herrero-Illana, Rubén Huang, Ko-Yun Kohno, Kotaro König, Sabine Nakanishi, Kouichiro Nishimura, Yuri Takano, Shuro Rivilla, Víctor M. Viti, Serena Watanabe, Yoshimasa van der Werf, Paul P. Yoshimura, Yuki National Astronomical Observatory of Japan 2-21-1 Osawa Mitaka Tokyo181-8588 Japan Institute of Astronomy and Astrophysics Academia Sinica 11F of AS/NTU Astronomy-Mathematics Building No.1 Sec. 4 Roosevelt Rd Taipei10617 Taiwan Astronomical Science Program Graduate Institute for Advanced Studies SOKENDAI 2-21-1 Osawa Mitaka Tokyo181-1855 Japan New Mexico Institute of Mining and Technology 801 Leroy Place SocorroNM87801 United States National Radio Astronomy Observatory PO Box O 1003 Lopezville Road SocorroNM87801 United States European Southern Observatory Alonso de Córdova 3107 Vitacura Santiago763-0355 Chile Joint ALMA Observatory Alonso de Córdova 3107 Vitacura Santiago763-0355 Chile Department of Space Earth and Environment Chalmers University of Technology Onsala Space Observatory OnsalaSE-439 92 Sweden Department of Physics and Astronomy Northwestern University EvanstonIL60208 United States Max-Planck-Institut für Radioastronomie Auf dem Hügel 69 Bonn53121 Germany Astronomy Department Faculty of Science King Abdulaziz University P. O. Box 80203 Jeddah21589 Saudi Arabia Department of Physics Faculty of Science and Technology Keio University 3-14-1 Hiyoshi Kanagawa Yokohama223-8522 Japan National Radio Astronomy Observatory 520 Edgemont Road CharlottesvilleVA22903-2475 United States Department of Space Earth and Environment Chalmers University of Technology GöteborgSE-412 96 Sweden Leiden Observatory Leiden University P.O. Box 9513 Leiden2300 RA Netherlands CSIC-INTA Ctra. de Ajalvir Km. 4 Torrejón de Ardoz Madrid28850 Spain Campus UAB Carrer de Magrans BarcelonaE-08193 Spain Institute of Astronomy Graduate School of Science The University of Tokyo 2-21-1 Osawa Mitaka Tokyo181-0015 Japan Department of Astronomy The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo113-0033 Japan ALMA Project National Astronomical Observatory of Japan 2-21-1 Osawa Mitaka Tokyo181-8588 Japan Department of Physic

Molecular lines are powerful diagnostics of the physical and chemical properties of the interstellar medium (ISM). These ISM properties, which affect future star formation, are expected to differ in starburst galaxies from those of more quiescent galaxies. We investigate the ISM properties in the central molecular zone of the nearby starburst galaxy NGC 253 using the ultra-wide millimeter spectral scan survey from the ALMA Large program ALCHEMI. We present an atlas of velocity-integrated images at a 1′′. 6 resolution of 148 unblended transitions from 44 species, including the first extragalactic detection of HCNH+ and the first interferometric images of C3H+, NO, HCS+. We conduct a principal component analysis (PCA) on these images to extract correlated chemical species and to identify key groups of diagnostic transitions. To the best of our knowledge, our dataset is currently the largest astronomical set of molecular lines to which PCA has been applied. The PCA can categorize transitions coming from different physical components in NGC 253 such as i) young starburst tracers characterized by high-excitation transitions of HC3N and complex organic molecules (COMs) versus tracers of on-going star formation (radio recombination lines) and high-excitation transitions of CCH and CN tracing PDRs, ii) tracers of cloud-collision-induced shocks (low-excitation transitions of CH3OH, HNCO, HOCO+, and OCS) versus shocks from star-formation-induced outflows (high-excitation transitions of SiO), as well as iii) outflows showing emission from HOC+, CCH, H3O+, CO isotopologues, HCN, HCO+, CS, and CN. Our findings show these intensities vary with galactic dynamics, star formation activities, and stellar feedback. © 2024, CC BY.

关键词： Principal component analysis

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Corrigendum to "Development and functional evaluation of a hyaluronic acid coated nano-formulation with kaempferol as a novel intra-articular agent for knee osteoarthritis treatment"[ Biomed. Pharmacother. 175(2024) 116717]

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Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie 2024年 177卷 116944页

作者： Ching-Yu Lee Yu-Chu Chang Kai-Chiang Yang Yung-Fang Lin Alexander T H Wu Ching-Li Tseng International Ph.D. Program in Cell Therapy and Regenerative Medicine College of Medicine Taipei Medical University Taipei 110301 Taiwan Department of Orthopedics Taipei Medical University Hospital Taipei 110301 Taiwan Department of Orthopaedics School of Medicine College of Medicine Taipei Medical University Taipei 110301 Taiwan Orthopedic Research Center Taipei Medical University Hospital Taipei 110301 Taiwan. Department of Biochemistry and Molecular Cell Biology School of Medicine College of Medicine Taipei Medical University Taipei 110301 Taiwan. School of Dental Technology College of Oral Medicine Taipei Medical University Taipei 110301 Taiwan. Graduate Institute of Biomedical Materials and Tissue Engineering College of Biomedical Engineering Taipei Medical University Taipei 110301 Taiwan International Ph.D. Program in Biomedical Engineering College of Biomedical Engineering Taipei Medical University Taipei 110301 Taiwan. The Ph.D. Program for Translational Medicine College of Medical Science and Technology Taipei Medical University Taipei 110301 Taiwan Clinical Research Center Taipei Medical University Hospital Taipei Medical University Taipei 110301 Taiwan. Electronic address: chaw1211@tmu.edu.tw. International Ph.D. Program in Biomedical Engineering College of Biomedical Engineering Taipei Medical University Taipei 110301 Taiwan. Electronic address: chingli@tmu.edu.tw.

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Effect of Calcium Phosphate Glass on Dentinal Tubule Sealing after Irradiation with the Carbon Dioxide Laser

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材料科学与工程（中英文A版） 2020年第4期10卷 124-131页

作者： Katsura Ohashi Tsuyoshi Sugahara Yuta Katayama Kaori Aoki Tota Shimizu Kiyoshi Tomiyama Yoshiharu Mukai Tomoraro Nihei Division of Clinical Biomaterials Department of Oral Science82 Inaoka-choYokosuka-shiKanagawa 238-8580Japan Division of Restorative Dentistry and 82 Inaoka-cho Yokosuka-shiKanagawa 238-8580Japan Division of Prosthodontics&Oral Implantology Department of Oral Interdisciplinary MedicineGraduate School of DentistryKanagawa Dental University82 Inaoka-choYokosuka-shiKanagawa 238-8580Japan Division of Materials&Surface Engineering Research Institute Research Advancement and Management OrganizationKanto Gakuin University1162-2 OgikuboOdawara-shiKanagawa 250-0042Japan

The aim of this study was to evaluate the dentinal tubule sealing and acid resistance of dentin specimens following the application of calcium phosphate glass powder prior to irradiation with a CO2(carbon dioxide)*** models simulating open dentinal tubules were divided into two groups:experimental(calcium phosphate glass slurry applied to the dentin surface)and control(no slurry applied to the surface).All specimens in the experimental group and five specimens in the control group were irradiated with a CO2 *** defocused laser beams(0.5 and 1 W)were applied(spot size,5 mm in diameter)from a distance of 20 mm for 10 *** surfaces and cross-sectional areas of the specimens were examined using an SEM(scanning electron microscope).In addition,the resistance to acid was evaluated in these *** open dentinal tubules in the control groups were sealed following irradiation with the CO2 laser at 0.5 W and 1.0 ***,sealing of open dentinal tubules was observed in the experimental group after CO2 laser *** acid resistance of the dentin surface was improved after CO2 laser irradiation;specimens in the experimental group presented with significantly lower amounts of Ca ion release compared to those in the control *** findings indicate that CO2 laser irradiation alone or after the application of calcium phosphate glass powder can effectively seal the dentinal tubules and alleviate dentin hypersensitivity.

关键词： CO2 laser dentinal tubules calcium phosphate glass

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Effect of Processing Conditions on the Mechanical and Morphological Properties of Elastomeric Poly (Methyl Methacrylate)/Polycarbonate Blends

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Macromolecular Symposia 2019年第1期383卷

作者： de Macedo, Thatiana Cristina Pereira da Silva Reinaldo, Juciklécia Pereira, Laurenice Martins do Rêgo, José Kaio Max Alves Ueki, Marcelo Massayoshi Damasceno, Igor Zumba Ito, Edson Noriyuki Graduate Program in Materials Science and Engineering Federal University of Rio Grande do Norte Avenida Senador Salgado Filho 3000 NatalRN59078-970 Brazil Department of Materials Science and Engineering Federal University of Sergipe Avenida Marechal Rondon São CristóvãoSEs/n 49100-000 Brazil Department of Materials Engineering Federal University of Rio Grande do Norte Avenida Senador Salgado Filho 3000 NatalRN59078-970 Brazil

The aim of this study was to investigate the influence of the processing conditions in single and co-rotational twin screw extruders on the mechanical and morphological properties of elastomeric poly (methyl methacrylate)/polycarbonate (PMMAe/PC) blends until the phase inversion. The characterizations were performed by measuring the melt flow index, capillary rheometry, thermogravimetric analysis, tensile tests, Izod impact, and atomic force microscopy (AFM). The thermal and rheological properties showed that PC had a higher sensitivity to processing conditions than PMMAe. The increase in PC concentration altered the mechanical properties of the PMMAe/PC blends with variations according to processing conditions. The morphology of PMMAe/PC blends up to phase inversion was visualized by AFM, and the results showed that the material processed with a single screw extruder obtained similar morphologies to that material processed in twin screw extruder. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

关键词： Atomic force microscopy

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Highly Recyclable and Tough Elastic Vitrimers from a Defined Polydimethylsiloxane Network

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Angewandte Chemie 2023年第47期135卷

作者： Dr. Jiancheng Luo Dr. Xiao Zhao Hao Ju Dr. Xiangjun Chen Dr. Sheng Zhao Dr. Zoriana Demchuk Dr. Bingrui Li Dr. Vera Bocharova Dr. Jan-Michael Y. Carrillo Dr. Jong K. Keum Prof. Sheng Xu Prof. Alexei P. Sokolov Dr. Jiayao Chen Prof. Peng-Fei Cao Chemical Sciences Division Oak Ridge National Laboratory Oak Ridge TN-37830 USA State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China Materials Science and Engineering Program University of California San Diego La Jolla CA-92093 USA Department of Chemistry University of Tennessee Knoxville TN-37996 USA The Bredesen Center for Interdisciplinary Research and Graduate Education University of Tennessee Knoxville TN-37996 USA Center for Materials Sciences Oak Ridge National Laboratory Oak Ridge TN-37830 USA Neutron Scattering Division Oak Ridge National Laboratory Oak Ridge TN-37830 USA

Despite intensive research on sustainable elastomers, achieving elastic vitrimers with significantly improved mechanical properties and recyclability remains a scientific challenge. Herein, inspired by the classical elasticity theory, we present a design principle for ultra-tough and highly recyclable elastic vitrimers with a defined network constructed by chemically crosslinking the pre-synthesized disulfide-containing polydimethylsiloxane (PDMS) chains with tetra-arm polyethylene glycol (PEG). The defined network is achieved by the reduced dangling short chains and the relatively uniform molecular weight of network strands. Such elastic vitrimers with the defined network, i.e., PDMS-disulfide-D, exhibit significantly improved mechanical performance than random analogous, previously reported PDMS vitrimers, and even commercial silicone-based thermosets. Moreover, unlike the vitrimers with random network that show obvious loss in mechanical properties after recycling, those with the defined network enable excellent thermal recyclability. The PDMS-disulfide-D also deliver comparable electrochemical signals if utilized as substrates for electromyography sensors after the recycling. The multiple relaxation processes are revealed via a unique physical approach. Multiple techniques are also applied to unravel the microscopic mechanism of the excellent mechanical performance and recyclability of such defined network.

关键词： Defined Network Polydimethylsiloxane Recyclable Polymer Tough Elastomer Vitrimers

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Efficient construction method for phase diagrams using uncertainty sampling

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Physical Review materials 2019年第3期3卷 033802-033802页

作者： Kei Terayama Ryo Tamura Yoshitaro Nose Hidenori Hiramatsu Hideo Hosono Yasushi Okuno Koji Tsuda RIKEN Center for Advanced Intelligence Project Tokyo 103-0027 Japan Medical Sciences Innovation Hub Program RIKEN Cluster for Science Technology and Innovation Hub Kanagawa 230-0045 Japan Graduate School of Medicine Kyoto University Kyoto 606-8507 Japan International Center for Materials Nanoarchitectonics (WPI-MANA) National Institute for Materials Science Ibaraki 305-0044 Japan Research and Services Division of Materials Data and Integrated System National Institute for Materials Science Ibaraki 305-0047 Japan Graduate School of Frontier Sciences University of Tokyo Chiba 277-8568 Japan Department of Materials Science and Engineering Kyoto University Kyoto 606-8501 Japan Laboratory for Materials and Structures Institute of Innovative Research Tokyo Institute of Technology Yokohama 226-8503 Japan Materials Research Center for Element Strategy Tokyo Institute of Technology Yokohama 226-8503 Japan

We develop a method to efficiently construct phase diagrams using machine learning. Uncertainty sampling (US) in active learning is utilized to intensively sample around phase boundaries. Here, we demonstrate constructions of three known experimental phase diagrams by the US approach. Compared with random sampling, the US approach decreases the number of sampling points to about 20%. In particular, the reduction rate is pronounced in more complicated phase diagrams. Furthermore, we show that using the US approach, undetected new phases can be rapidly found, and smaller numbers of initial sampling points are sufficient. Thus, we conclude that the US approach is useful to construct complicated phase diagrams from scratch and will be an essential tool in materials science.

关键词： Phase diagrams

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