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Harnessing novel engineered feeder cells expressing activating molecules for optimal expansion of NK cells with potent antitumor activity

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Cellular & Molecular Immunology 2022年第2期19卷 296-298页

作者： Bokyung Min Bitna Yang You-Sun Kim Gyeong Min Park HyunAh Kim Hyojin Kim Eun-Ji Kim Yu Kyeong Hwang Eui-Cheol Shin Sungyoo Cho BioMedical Science and Engineering Interdisciplinary Program KAISTDaejeonKorea Cell Therapy Research Center GC LabCellYonginKorea Laboratory of Immunology and Infectious Diseases Graduate School of Medical Science and EngineeringKAISTDaejeonKorea

Natural killer(NK)cells play an important role in the antitumor immune response as the major cytotoxic lymphocytes in the innate immune *** cells without any genetic modifications have been used for both autologous and allogeneic ***,many reports have suggested that allogeneic NK cells can reduce the recurrence of disease and improve survival through a graft-versus-leukemia effect without GVHD[1,2].

关键词： killer expressing optimal

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Bioinspired MXene-Based Soft Actuators Exhibiting Angle-Independent Structural Color

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Nano-Micro Letters 2023年第1期15卷 1-13页

作者： Pan Xue Yuanhao Chen Yiyi Xu Cristian Valenzuela Xuan Zhang Hari Krishna Bisoyi Xiao Yang Ling Wang Xinhua Xu Quan Li School of Materials Science and Engineering Tianjin UniversityTianjin 300350People’s Republic of China Institute of Advanced Materials School of Chemistry and Chemical EngineeringTech Key Laboratory for Biomedical ResearchSoutheast Universityand Jiangsu Province HiNanjing 211189People’s Republic of China Advanced Materials and Liquid Crystal Institute and Chemical Physics Interdisciplinary Program Kent State UniversityKentOH 44242USA

In nature,many living organisms exhibiting unique structural coloration and soft-bodied actuation have inspired scientists to develop advanced structural colored soft actuators toward biomimetic soft ***,it is challenging to simultaneously biomimic the angle-independent structural color and shape-morphing capabilities found in the plum-throated cotinga flying ***,we report biomimetic MXene-based soft actuators with angle-independent structural color that are fabricated through controlled self-assembly of colloidal SiO_(2) nanoparticles onto highly aligned MXene films followed by vacuum-assisted infiltration of polyvinylidene fluoride into the *** resulting soft actuators are found to exhibit brilliant,angle-independent structural color,as well as ultrafast actuation and recovery speeds(a maximum curvature of 0.52 mm−1 can be achieved within 1.16 s,and a recovery time of~0.24 s)in response to acetone *** proof-of-concept illustrations,structural colored soft actuators are applied to demonstrate a blue gripper-like bird’s claw that can capture the target,artificial green tendrils that can twine around tree branches,and an artificial multicolored butterfly that can flutter its wings upon cyclic exposure to acetone *** strategy is expected to offer new insights into the development of biomimetic multifunctional soft actuators for somatosensory soft robotics and next-generation intelligent machines.

关键词： Bioinspired soft actuator Angle-independent structural color MXene liquid crystals Soft robotics

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Bioceramic-mediated chondrocyte hypertrophy promotes calcified cartilage formation for rabbit osteochondral defect repair

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Bioactive Materials 2024年第10期40卷 306-317页

作者： Rachel H.Koh Junhee Kim Jeong-Uk Kim Seunghyun L.Kim Arun Kumar Rajendran Seunghun SLee Heesoo Lee Joo Hyun Kim Ji Hoon Jeong Yongsung Hwang Jong Woo Bae Nathaniel S.Hwang School of Chemical and Biological Engineering Institute of Chemical ProcessesSeoul National UniversitySeoul08826South Korea Interdisciplinary Program in Bioengineering Seoul National UniversitySeoul08826South Korea Department of Biomedical Engineering Dongguk UniversitySeoul10326South Korea Soonchunhyang Institute of Medi-bio Science(SIMS) Soonchunhyang UniversityCheonan31151South Korea Department of Integrated Biomedical Science Soonchunhyang UniversityAsan31538South Korea Department of Orthopaedic Surgery Konkuk University Chungju HospitalKonkuk University School of MedicineChungju27376South Korea BioMAX Institute Seoul National UniversitySeoul08826South Korea

Osteochondral tissue is a highly specialized and complex tissue composed of articular cartilage and subchondral bone that are separated by a calcified cartilage *** or gradient scaffolds,often in conjunction with stem cells and growth factors,have been developed to mimic the respective layers for osteochondral defect *** this study,we designed a hyaline cartilage-hypertrophic cartilage bilayer graft(RGD/RGDW)with ***,we demonstrated that RGD peptide-modified chondroitin sulfate cryogel(RGD group)is chondro-conductive and capable of hyaline cartilage ***,we incorporated whitlockite(WH),a Mg^(2+)-containing calcium phosphate,into RGD cryogel(RGDW group)to induce chondrocyte hypertrophy and form collagen X-rich hypertrophic *** is the first study to use WH to produce hypertrophic ***-laden RGDW cryogel exhibited significantly upregulated expression of hypertrophy markers in vitro and formed ectopic hypertrophic cartilage in vivo,which mineralized into calcified cartilage in bone ***,RGD cryogel and RGDW cryogel were combined into bilayer(RGD/RGDW group)and implanted into rabbit osteochondral defect,where RGD layer supports hyaline cartilage regeneration and bioceramic-containing RGDW layer promotes calcified cartilage *** the RGD group(monolayer)formed hyaline-like neotissue that extends into the subchondral bone,the RGD/RGDW group(bilayer)regenerated hyaline cartilage tissue confined to its respective layer and promoted osseointegration for integrative defect repair.

关键词： Bioceramic Whitlockite Bilayer scaffold Chondrocyte hypertrophy Osteochondral defect repair

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Correction: Recent progress in DNA data storage based on high-throughput DNA synthesis

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biomedical engineering letters 2024年第5期14卷 1147-1152页

作者： Seokwoo Jo Haewon Shin Sung-Yune Joe David Baek Chaewon Park Honggu Chun Department of Biomedical Engineering Korea University 466 Hana Science Hall Seoul 02841 Korea. Interdisciplinary Program in Precision Public Health Korea University 466 Hana Science Hall Seoul 02841 Korea.

[This corrects the article DOI: 10.1007/s13534-024-00386-z.].

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Injectable Platelet Lysate–Thai Silk Fibroin Hydrogel for Canine Intervertebral Disc Repair: A Minimally Invasive Strategy for Sustained Growth Factor Release

SSRN

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SSRN 2025年

作者： Ratanavaraporn, Juthamas Chayatup, Kannika Boonkruephan, Sarinthorn Keeratihattayakorn, Saran Wangdee, Chalika Interdisciplinary Program of Biomedical Engineering Program Faculty of Engineering Chulalongkorn University Bangkok Thailand Biomedical Engineering Research Center Faculty of Engineering Chulalongkorn University Bangkok Thailand Research Unit Chulalongkorn University Bangkok10330 Thailand Department of Veterinary Surgery Faculty of Veterinary Science Chulalongkorn University Bangkok Thailand

Canine intervertebral disc degeneration (IVDD) is a progressive spinal disorder that compromises mobility, induces chronic pain, and reduces quality of life. Existing treatments provide only symptomatic relief and do not halt disease progression or restore disc integrity. This study aims to develop and characterize an injectable platelet lysate–Thai silk fibroin (PL–TSF) hydrogel as a minimally invasive platform for localized and sustained growth factor delivery in canine IVDD treatment. The hydrogel was formulated using PL from expired canine platelet concentrates and TSF extracted from cocoons of Thai-bred Bombyx mori silkworms. Fabricated via sonication-induced gelation, it exhibited tunable gelation kinetics and injectability through a 27-gauge spinal needle, supporting clinical feasibility for minimally invasive delivery. PL incorporation enhanced the hydrogel’s elasticity and mechanical resilience without compromising scaffold integrity. The system demonstrated biphasic degradation over 35 days. TGF-β1 release kinetics exhibited an initial burst followed by sustained release over 28 days, consistent with diffusion-controlled delivery suitable for IVD repair. Cytotoxicity testing confirmed good biocompatibility and supported the viability of canine chondrocytes. By combining mechanical support with prolonged growth factor availability, PL–TSF hydrogels address key limitations of conventional platelet-based therapies and represent a promising strategy for early-stage IVDD intervention. Further in vivo studies are warranted to confirm long-term regenerative efficacy and facilitate clinical translation in veterinary medicine. © 2025, The Authors. All rights reserved.

关键词： Gelation

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Development of exosome membrane materialsfused microbubbles for enhanced stability and efficient drug delivery of ultrasound contrast agent

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Acta Pharmaceutica Sinica B 2023年第12期13卷 4983-4998页

作者： Yongho Jang Jeehun Park Pilsu Kim Eun-Joo Park Hyungjin Sun Yujin Baek Jaehun Jung Tai-kyong Song Junsang Doh Hyuncheol Kim Department of Chemical and Biomolecular Engineering Sogang UniversitySeoul 04107Republic of Korea Research Institute of Advanced Materials(RIAM) Institute of Engineering ResearchSeoul National UniversitySeoul 08826Republic of Korea Department of Electronic Engineering Sogang UniversitySeoul 04107Republic of Korea Biomedical Research Institute&Department of Radiology Seoul National University HospitalSeoul 03080Republic of Korea Interdisciplinary Program in Bioengineering Seoul National UniversitySeoul 08826Republic of Korea Department of Materials Science and Engineering Seoul National UniversitySeoul 08826Republic of Korea Institute of Engineering Research Bio-MAX InstituteSeoul National UniversitySeoul 08826Republic of Korea Department of Biomedical Engineering Sogang UniversitySeoul 04107Republic of Korea

Lipid-coated microbubbles are widely used as an ultrasound contrast agent,as well as drug delivery ***,the two main limitations in ultrasound diagnosis and drug delivery using microbubbles are the short half-life in the blood system,and the difficulty of surface modification of microbubbles for active *** exosome,a type of extracellular vesicle,has a preferentially targeting ability for its original *** this study,exosome-fused microbubbles(Exo-MBs)were developed by embedding the exosome membrane proteins into *** a result,the stability of Exo-MBs is improved over the conventional *** the same principle that under the exposure of ultrasound,microbubbles are cavitated and self-assembled into nano-sized particles,and Exo-MBs are self-assembled into exosome membrane proteins-embedded nanoparticles(Exo-NPs).The Exo-NPs showed favorable targeting properties to their original cells.A photosensitizer,chlorin e6,was loaded into Exo-MBs to evaluate therapeutic efficacy as a drug *** higher therapeutic efficacy of photodynamic therapy was confirmed,followed by cancer immunotherapy from immunogenic cell *** have therefore developed a novel ultrasound image-guided drug delivery platform that overcomes the shortcomings of the conventional ultrasound contrast agent and is capable of simultaneous photodynamic therapy and cancer immunotherapy.

关键词： Exosomes Microbubbles Photodynamic therapy Ultrasound Sonoporation Cancer immunotherapy Drug delivery

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High-Resolution Hydrogen Molecule Detection Utilizing a Nanocandle-Based Optical Sensor 16

High-Resolution Hydrogen Molecule Detection Utilizing a Nano...

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16th Pacific Rim Conference on Lasers and Electro-Optics, CLEO-PR 2024

作者： Park, Nu-Ri Kim, Min-Joong Lee, Jongsu Seo, Minah Ryu, Yong-Sang Kim, Myung-Ki KU-KIST Graduate School of Converging Science and Technology Korea University Seoul02841 Korea Republic of Korea Institute of Science and Technology Sensor System Research Center Seoul02792 Korea Republic of Northwestern University Department of Electrical Engineering and Computer Science EvanstonIL60208 United States School of Biomedical Engineering Korea University Seoul02481 Korea Republic of Interdisciplinary Program in Precision Public Health Korea University Seoul02481 Korea Republic of

Our research introduces a novel method for safe hydrogen detection. We've developed an advanced nano-candle sensor, combining Pd with nano-candles, enabling accurate detection of low-concentration hydrogen ( ©... 详细信息

ISBN: (纸本)9798350372076

关键词： Nanoclay

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Study of Cell Encapsulation System in Using Thai Silk Fibroin-Based Hydrogel

Study of Cell Encapsulation System in Using Thai Silk Fibroi...

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biomedical engineering International Conference (BMEiCON)

作者： Nitchaya Suksomthong Sasitorn Aueviriyavit Juthamas Ratanavaraporn Interdisciplinary Program of Biomedical Engineering Faculty of Engineering Chulalongkorn University Bangkok Thailand Nano Safety and Bioactivity Research Team National Nanotechnology Center National Science and Technology Development Agency (NSTDA) Pathum Thani Thailand Biomedical Engineering Program Biomedical Engineering Research Center Biomaterial Engineering for Medical and Health Research Unit Faculty of Engineering Chulalongkorn University Bangkok Thailand

Designing biomimetic tissue models and developing scaffolds under cell-compatible protocols are a challenge in the field of tissue engineering. Cell encapsulation technique was selected with hydrogel fabrication due to its similarity to the condition within the human body. This study proposed SF-based hydrogels with the aim of application as cell encapsulation matrix. The vital properties, including gelation, diffusion, and cell viability were evaluated. SF/DMPG hydrogels exhibited rapid gelation and sufficient diffusion. L929 cells encapsulated in SF/DMPG survived after the fabrication process, with proliferation occurred at day 1 of culture which was done in static condition. The developed hydrogels showed potential application as a cell encapsulation matrix using tissue engineering, especially bioink.

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Seeing in Body Using Wearable Electronics

SSRN

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SSRN 2024年

作者： Linh, Vo Thi Nhat Han, Seunghun Koh, Eunhye Kim, Sumin Jung, Ho Sang Koo, Jahyun Changwon51508 Korea Republic of School of Biomedical Engineering College of Health Science Korea University Seoul02841 Korea Republic of School of Biomedical Engineering Interdisciplinary Program in Precision Public Health Korea University Seoul02841 Korea Republic of Daejeon34113 Korea Republic of Pohang37673 Korea Republic of

Devices used for diagnosing disease are often large, expensive, and require operation by trained professionals, which can result in delayed diagnosis and missed opportunities for timely treatment. However, wearable devices are being recognized as a new approach to overcoming these difficulties, as they are small, affordable, and easy to use. Recent advancements in wearable technology have made monitoring information possible from the surface of organs like the skin and eyes, enabling accurate diagnosis of the user’s internal status. In this review, we categorize the body’s organs into external (e.g., eyes, oral cavity, neck, and skin) and internal (e.g., heart, brain, lung, stomach, and bladder) organ systems and introduce recent developments in the materials and designs of wearable electronics, including electrochemical and electrophysiological sensors applied to each organ system. Further, we discuss recent innovations in wearable electronics for noninvasive monitoring of deep internal organs, such as the heart, brain, and nervous system, using ultrasound, electrical impedance tomography, and temporal interference stimulation. © 2024, The Authors. All rights reserved.

关键词： Wearable technology

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Porous silicon on paper sensors: Factors affecting biosensing performance 17

Porous silicon on paper sensors: Factors affecting biosensin...

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Frontiers in Biological Detection: From Nanosensors to Systems XVII 2025

作者： An, Huijin Laibinis, Paul E. Locke, Andrea K. Weiss, Sharon M. Interdisciplinary Material Science Program Vanderbilt University NashvilleTN37235 United States Department of Electrical and Computer Engineering Vanderbilt University NashvilleTN37235 United States Department of Chemical and Biomolecular Engineering Vanderbilt University NashvilleTN37235 United States Department of Chemistry Vanderbilt University NashvilleTN37235 United States Department of Biomedical Engineering Vanderbilt University NashvilleTN37235 United States

ISBN: (纸本)9781510684249

A paper-based biosensor integrating a functionalized porous silicon (PSi) membrane as the active sensing element for quantifiable protein detection has been developed. For similar short-time exposures to an analyte, improved molecular transport in PSi membranes when on paper leads to larger signal changes compared to traditional PSi films that remain on a silicon substrate. In this work, we discuss controlling the incubation time of the analyte and the overall testing time of the sensor by incorporating different combinations of wicking and absorbent paper beneath the PSi membrane. With this control, the PSi-on-paper sensor platform has the potential to serve as an effective low-cost rapid diagnostic test with highly sensitive, quantitative readout for a wide range of analytes. © 2025 SPIE.

关键词： Porous silicon

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