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Correction: Enabling nanopore technology for sensing individual amino acids by a derivatization strategy

Journal of materials chemistry. B 2020年第39期8卷 2020 Oct 6页

作者： Xiaojun Wei Dumei Ma Lihong Jing Leon Y Wang Xiaoqin Wang Zehui Zhang Brian J Lenhart Yingwu Yin Qian Wang Chang Liu Biomedical Engineering Program University of South Carolina Columbia SC 29208 USA. changliu@cec.sc.edu and Department of Chemical Engineering University of South Carolina Columbia SC 29208 USA. Department of Chemistry and Biochemistry University of South Carolina Columbia SC 29208 USA. wang263@mailbox.sc.edu and Department of Chemical and Biochemical Engineering College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Fujian China. Key Laboratory of Colloid Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Bei Yi Jie 2 Zhong Guan Cun Beijing 100190 China. jinglh@***. Department of Chemical Engineering University of South Carolina Columbia SC 29208 USA. Biomedical Engineering Program University of South Carolina Columbia SC 29208 USA. changliu@cec.sc.edu. Department of Chemical and Biochemical Engineering College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Fujian China. Department of Chemistry and Biochemistry University of South Carolina Columbia SC 29208 USA. wang263@mailbox.sc.edu.

Correction for 'Enabling nanopore technology for sensing individual amino acids by a derivatization strategy' by Xiaojun Wei et al., J. Mater. Chem. B, 2020, 8, 6792-6797, DOI: 10.1039/D0TB00895H.

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Singlet Oxygen Generation in Dark-Hypoxia by Catalytic Microenvironment-Tailored Nanoreactors for NIR-II Fluorescence-Monitored Chemodynamic Therapy

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Angewandte Chemie 2021年第27期133卷

作者： Tao Chen Peidong Hou Yafei Zhang Rujiang Ao Lichao Su Yifan Jiang Yuanli Zhang Huilan Cai Jun Wang Prof. Qiushui Chen Prof. Jibin Song Prof. Lisen Lin Prof. Huanghao Yang Prof. Xiaoyuan Chen MOE Key Laboratory for Analytical Science of Food Safety and Biology College of Chemistry Fuzhou University Fuzhou 350108 China Departments of Diagnostic Radiology Chemical and Biomolecular Engineering and Biomedical Engineering Yong Loo Lin School of Medicine and Faculty of Engineering National University of Singapore Singapore 117597 Singapore Clinical Imaging Research Centre Centre for Translational Medicine Yong Loo Lin School of Medicine National University of Singapore Singapore 117599 Singapore Nanomedicine Translational Research Program NUS Center for Nanomedicine Yong Loo Lin School of Medicine National University of Singapore Singapore 117597 Singapore

Singlet oxygen ( 1 O 2 ) has a potent anticancer effect, but photosensitized generation of 1 O 2 is inhibited by tumor hypoxia and limited light penetration depth. Despite the potential of chemodynamic therapy (CDT) to circumvent these issues by exploration of 1 O 2 -producing catalysts, engineering efficient CDT agents is still a formidable challenge since most catalysts require specific pH to function and become inactivated upon chelation by glutathione (GSH). Herein, we present a catalytic microenvironment-tailored nanoreactor (CMTN), constructed by encapsulating MoO 4 2− catalyst and alkaline sodium carbonate within liposomes, which offers a favorable pH condition for MoO 4 2− -catalyzed generation of 1 O 2 from H 2 O 2 and protects MoO 4 2− from GSH chelation owing to the impermeability of liposomal lipid membrane to ions and GSH. H 2 O 2 and 1 O 2 can freely cross the liposomal membrane, allowing CMTN with a built-in NIR-II ratiometric fluorescent 1 O 2 sensor to achieve monitored tumor CDT.

关键词： catalytic microenvironment chemodynamic therapy nanoreactors NIR-II ratiometric fluorescence singlet oxygen

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Surface modification of alginate sponge using tannic acid and dodecanethiol for diesel oil spill separation from water

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International journal of biological macromolecules 2025年 317卷 144453页

作者： Ronald Wijaya Kuan-Chen Cheng Shella Permatasari Santoso Shin-Ping Lin Jindrayani Nyoo Putro Jenni Lie Chang-Wei Hsieh Hsien-Yi Hsu Alchris Woo Go Artik Elisa Angkawijaya Chemical Engineering Department National Taiwan University of Science and Technology Taipei 10607 Taiwan. Institute of Biotechnology National Taiwan University 1 Roosevelt Rd. Sec. 4 Taipei 10617 Taiwan Department of Optometry Asia University 500 Lioufeng Rd. Wufeng Taichung 41354 Taiwan Department of Medical Research China Medical University Hospital China Medical University 91 Hsueh-Shih Rd. Taichung 40402 Taiwan Institute of Food Science and Technology National Taiwan University No.1 Sec. 4 Roosevelt Rd. Taipei 10617 Taiwan Dept of Food Science Fu Jen Catholic University 24205 New Taipei City Taiwan. Chemical Engineering Department Widya Mandala Surabaya Catholic University Surabaya 60114 East Java Indonesia Chemical Engineering Master Program Widya Mandala Surabaya Catholic University Kalijudan 37 Surabaya 60114 Indonesia Collaborative Research Center for Zero Waste and Sustainability Widya Mandala Surabaya Catholic University Jl. Kalijudan 37 Surabaya 60114 East Java Indonesia. Electronic address: shella@ukwms.ac.id. School of Food Safety Taipei Medical University 250 Wu-Hsing Street Taipei 11031 Taiwan TMU Research Center for Digestive Medicine Taipei Medical University 250 Wu-Hsing Street Taipei 11031 Taiwan Research Center of Biomedical Device Taipei Medical University 250 Wu-Hsing Street Taipei 11031 Taiwan. Collaborative Research Center for Zero Waste and Sustainability Widya Mandala Surabaya Catholic University Jl. Kalijudan 37 Surabaya 60114 East Java Indonesia. Department of Food Science and Biotechnology National Chung Hsing University South Dist Taichung City 40227 Taiwan Department of Medical Research China Medical University Hospital North Dist Taichung City 404333 Taiwan. School of Energy and Environment Department of Materials Science and Engineering City University of Hong Kong Kowloon Tong 518057 Hong Kong China Shenzhen Research Institute of City University of Hong Kong Shenzhen 518057 Hong Kong China Department of Che

An environmentally friendly absorbent sponge was successfully developed for diesel spill remediation via alginate polymer crosslinking followed by surface modification using tannic acid and dodecanethiol (TA/Do). The optimal sponge was obtained with a 3 h crosslinking duration, achieving a balance between absorption performance and structural durability, while longer crosslinking times led to increased density and reduced efficiency. Surface modification imparted hydrophobicity to the alginate sponge, confirmed by a water contact angle of 120.2°, and the successful incorporation of TA/Do was confirmed from FTIR and XPS analysis. The modified sponge (AA-3-TA/Do) exhibited a diesel absorption capacity of 17.54 g/g-a 36 % increase over the unmodified form-and retained ~90 % of this capacity after 34 absorption-desorption cycles. Kinetic modeling showed that diesel was rapidly absorbed during early contact, with faster uptake than water. A cytotoxicity assay confirmed its non-toxic nature, indicating environmental compatibility. This study demonstrates that a simple, scalable modification using accessible materials can significantly enhance oil sorbent performance without requiring complex techniques or hazardous reagents.

关键词： Alginate sponge Diesel absorption Oil spill management

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A LRET Nanoplatform Consisting of Lanthanide and Amorphous Manganese Oxide for NIR-II Luminescence Lifetime Imaging of Tumor Redox Status

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Angewandte Chemie 2022年第47期134卷

作者： Dr. Mengyao Zhao Dr. Hongjun Zhuang Dr. Hongxin Zhang Dr. Benhao Li Jiang Ming Prof. Xiaoyuan Chen Prof. Meiwan Chen State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical Sciences University of Macau Macau 999078 China Departments of Diagnostic Radiology Surgery Chemical and Biomolecular Engineering and Biomedical Engineering Yong Loo Lin School of Medicine and Faculty of Engineering National University of Singapore Singapore 119074 Singapore Contribution: Conceptualization (lead) Investigation (lead) Writing - original draft (lead) Department of Chemistry State Key Laboratory of Molecular Engineering of Polymers and iChem Shanghai Key Laboratory of Molecular Catalysis and Innovative Material Fudan University Shanghai 200433 China Contribution: Investigation (supporting) Nanomedicine Translational Research Program NUS Center for Nanomedicine Yong Loo Lin School of Medicine National University of Singapore Singapore 117597 Singapore Clinical Imaging Research Centre Centre for Translational Medicine Yong Loo Lin School of Medicine National University of Singapore Singapore 117599 Singapore Institute of Molecular and Cell Biology Agency for Science Technology and Research (A*STAR) Singapore 138673 Singapore Contribution: Funding acquisition (lead) Supervision (lead)

Designing luminescence lifetime sensors in the second near-infrared (NIR-II) window is a great challenge due to the difficult structural construction. Here, we report a tumor redox responsive and easily synthesized material, amorphous manganese oxide (MnO x ) with indirect band gap of 1.02 eV, as an energy acceptor to build a luminescence resonance energy transfer (LRET) toolbox for universally regulating NIR-I to NIR-II luminescence lifetimes of lanthanide nanoparticles, in which energy transfer is based on matched energy gap instead of conventional overlapped spectra. We further utilize ytterbium (Yb 3+ )-doped YbNP@MnO x as an NIR-II luminescence lifetime sensor to realize in vitro quantitative redox visualization with relative errors under 5 % in samples covered with mouse skin. Furthermore, HepG2 cells and tumors with high redox state have been accurately distinguished by NIR-II luminescence lifetime imaging. The quantified intracellular and intratumor glutathione (GSH) levels are highly consistent with the commercial kit results, illustrating the reliable redox visualization ability in biological tissue.

关键词： Amorphous Manganese Oxide Lanthanide Luminescence Lifetime Imaging NIR-II LRET Quantitative Redox Visualization

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Comparative analyses for plant virus-based cancer immunotherapy drug development

Cell Biomaterials

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Cell Biomaterials 2025年

作者： Anthony O. Omole Hannah S. Newton Edward Cedrone Kimia Nematpour Shaojun Xie Yongmei Zhao Bao Tran Marina A. Dobrovolskaia Nicole F. Steinmetz Aiiso Yufeng Li Family Department of Chemical and Nano Engineering University of California San Diego La Jolla San Diego CA 92093 USA Shu and K.C. Chien and Peter Farrell Collaboratory University of California San Diego La Jolla San Diego CA 92093 USA Center for Nano-ImmunoEngineering University of California San Diego La Jolla San Diego CA 92093 USA Moores Cancer Center University of California San Diego La Jolla San Diego CA 92093 USA Nanotechnology Characterization Lab Cancer Research Technology Program Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute Frederick MD 21702 USA Sequencing Facility Bioinformatics Group Biomedical Informatics and Data Science Directorate Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute Frederick MD 21702 USA CCR Sequencing Facility Cancer Research Technology Program Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute Frederick MD 21702 USA Department of Bioengineering University of California San Diego La Jolla San Diego CA 92093 USA Department of Radiology University of California San Diego La Jolla San Diego CA USA Institute for Materials Discovery and Design University of California San Diego La Jolla San Diego CA 92093 USA Center for Engineering in Cancer Institute of Engineering Medicine University of California San Diego La Jolla San Diego CA 92093 USA

Cowpea mosaic virus (CPMV) is a plant virus with potent anti-tumor efficacy. Intratumoral CPMV, but not cowpea chlorotic mottle virus (CCMV), reprograms the tumor microenvironment priming durable, systemic anti-tumor immunity. Here, we performed a side-by-side mechanism of action comparison between CPMV and CCMV. Through immune-multiplexing and trafficking studies we observed that CPMV and CCMV are taken up by innate immune cells at similar rates but are processed differently. While CCMV induces proinflammatory interleukins 22, 23, and 27, CPMV is a strong inducer of type I, II, and III interferons, which contribute to the activation and enhancement of immune cell function. We observed that CPMV RNAs activate Toll-like receptor (TLR) 7 upon delivery—and not CCMV RNAs; CPMV RNAs persist longer within cells compared with CCMV. Taken together, this work identifies determinants for CPMV’s unique mechanism for intratumoral immunotherapy. It also broadens our understanding of the utility of plant viruses for biomedical applications.

关键词： plant viruses intratumoral immunotherapy cowpea mosaic virus cowpea chlorotic mottle virus cancer nanotechnology

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Author Correction: A comprehensive human embryo reference tool using single-cell RNA-sequencing data

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Nature methods 2025年第3期22卷 636页

作者： Cheng Zhao Alvaro Plaza Reyes John Paul Schell Jere Weltner Nicolás M Ortega Yi Zheng Åsa K Björklund Laura Baqué-Vidal Joonas Sokka Ras Trokovic Brian Cox Janet Rossant Jianping Fu Sophie Petropoulos Fredrik Lanner Department of Clinical Science Intervention and Technology Karolinska Institutet and Division of Obstetrics and Gynecology Karolinska Universitetssjukhuset Stockholm Sweden. Department of Integrative Pathophysiology and Therapy Andalusian Molecular Biology and Regenerative Medicine Centre (CABIMER) Seville Spain. Stem Cells and Metabolism Research Program University of Helsinki Helsinki Finland. Folkhälsan Research Center Helsinki Finland. Department of Mechanical Engineering University of Michigan Ann Arbor MI USA. Department of Biomedical and Chemical Engineering Syracuse University Syracuse NY USA. Department of Cell and Molecular Biology National Bioinformatics Infrastructure Sweden Science for Life Laboratory Uppsala University Uppsala Sweden. Department of Physiology Faculty of Medicine University of Toronto Toronto Ontario Canada. Program in Developmental and Stem Cell Biology Hospital for Sick Children Toronto Ontario Canada. Department of Cell and Developmental Biology University of Michigan Medical School Ann Arbor MI USA. Department of Biomedical Engineering University of Michigan Ann Arbor MI USA. Department of Clinical Science Intervention and Technology Karolinska Institutet and Division of Obstetrics and Gynecology Karolinska Universitetssjukhuset Stockholm Sweden. sophie.petropoulos@ki.se. Département de Médecine Université de Montréal Montreal Quebec Canada. sophie.petropoulos@ki.se. Centre de Recherche du Centre Hospitalier de l'Université de Montréal Axe Immunopathologie Montreal Quebec Canada. sophie.petropoulos@ki.se. Department of Clinical Science Intervention and Technology Karolinska Institutet and Division of Obstetrics and Gynecology Karolinska Universitetssjukhuset Stockholm Sweden. fredrik.lanner@ki.se. Ming Wai Lau Center for Reparative Medicine Stockholm Node Karolinska Institutet Stockholm Sweden. fredrik.lanner@ki.se.

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Reducing Student Resistance to Active Learning: Strategies for Instructors

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Journal of College Science Teaching 2018年第5期47卷 80-91页

作者： Finelli, Cynthia J. Nguyen, Kevin DeMonbrun, Matthew Borrego, Maura Prince, Michael Husman, Jenefer Henderson, Charles Shekhar, Prateek Waters, Cynthia K. Engineering Education Research Program Department of Electrical Engineering and Computer Science School of Education University of Michigan Ann Arbor United States STEM education University of Texas at Austin United States School of Education University of Michigan Ann Arbor United States Center for Engineering Education Department of Mechanical Engineering STEM education University of Texas at Austin United States Chemical Engineering Department Bucknell University in Lewisburg PA United States University of Oregon in Eugene United States Mallinson Institute for Science Education Western Michigan University in Kalamazoo United States Department of Biomedical Engineering University of Michigan in Ann Arbor United States Department of Mechanical Engineering North Carolina A and T State University in Greensboro United States

In spite of considerable evidence of the effectiveness of active learning and other contemporary teaching methods, barriers to adoption of those methods, such as possible student resistance, continue to exist. This study addresses student resistance by analyzing data from 1,051 students who completed our Student Response to Instructional Practices (StRIP) instrument in 18 introductory engineering courses where active learning was implemented. Through descriptive statistics, correlation analyses, and hierarchical linear regression modeling, we demonstrate that students ‘perceptions of their instructors’ use of explanation and facilitation strategies can have a significant impact on student resistance. This study provides a more complete picture of the relative efficacy of these strategies to reduce resistance and confirms that students ‘perceptions of their instructors’ use of these strategies can influence both how students engage with active learning and how students evaluate the course and instructor. We provide evidencebased advice for both new and experienced instructors to reduce student resistance to active learning and other contemporary teaching methods. © 2018 National Science Teaching Association.

关键词： Active learning Teaching methods Student attitudes Perceptions

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Influence of clinical hemodialysis membrane morphology and chemistry on protein adsorption and inflammatory biomarkers released: In-situ synchrotron imaging, clinical and computational studies

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biomedical engineering Advances 2023年 5卷

作者： Zhu Sishi Jumanah Bahig Denis Kalugin Ahmed Shoker Ning Zhu Amira Abdelrasoul Department of Chemical and Biological Engineering University of Saskatchewan 57 Campus Drive Saskatoon Saskatchewan S7N 5A9 Canada Division of Biomedical Engineering University of Saskatchewan 57 Campus Drive Saskatoon Saskatchewan S7N 5A9 Canada Kinesiology University of Saskatchewan 87 Campus Dr Saskatoon Saskatchewan S7N 5B Canada Nephrology Division College of Medicine University of Saskatchewan 107 Wiggins Rd Saskatoon Saskatchewan S7N 5E5 Canada Saskatchewan Transplant Program St. Paul's Hospital 1702 20th Street West Saskatoon Saskatchewan S7M 0Z9 Canada Canadian Light Source 44 Innovation Blvd Saskatoon Saskatchewan S7N 2V3 Canada

Hemodialysis (HD) is often accompanied with activation of biochemical cascade reactions, caused by undesirable protein adsorption, which results in severe consequences for HD patients. Present research aims to study three hemodialysis membranes currently available in the Canadian hospitals of polyacrylonitrile (PAN), polyethersulfone (PES) and polyvinylidene fluoride (PVDF) and their interaction with three main human serum proteins: Human Serum Ablumin (HSA), Human Serum Fibrinogen (FB) and Human Serum Transferrin (TRF). In-situ synchrotron-based X-ray tomography (SR-μCT) was used to evaluate main membranes characteristics such as fiber diameter, pore size and their distribution, as well as to study the process of protein adsorption on the membranes surface and along membrane matrices. Scanning Electron Microscopy (SEM) was also used to investigate the morphology of proteins deposited on the membrane surface. Furthermore, interaction of membranes with inflammatory biomarkers was studied. Collected blood samples from HD patients were analyzed using Luminex assay for the inflammatory biomarkers of Serpin/Antitrombin-III, Properdin, C5a, 1L-1α, 1L-1β, IL-6 and TNF-α. Our results indicate the difference in the interaction of membranes with proteins is mainly attributed to a membrane surface charge and membrane chemistry. PAN and PES membranes, which are possessing high negative charge (-41.5mV and -68mV) and polar surface groups, would alter the morphology of adsorbed HAS and FB, while PVDF surface does not affect protein crystals growth. Furthermore, the molecular docking results showed that the highest interaction energy of human serum proteins was with PES membrane. The increased interaction of PES membrane with human serum proteins has triggered inflammation reactions. The release of C5a, IL-6 and Serpin cytokines for PES membrane was drastically higher compared to PAN and PVDF. The relative increase in those cytokine concentrations was 400-2000% for PES membrane, w

关键词： Hemodialysis membrane Synchrotron X-ray tomography Protein adsorption Molecular docking Inflammatory biomarkers

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Coordinating the Mechanisms of Action of Ferroptosis and the Photothermal Effect for Cancer Theranostics

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Angewandte Chemie 2021年第13期134卷

作者： Fantian Zeng Dr. Longguang Tang Qianyu Zhang Changrong Shi Zicheng Huang Sureya Nijiati Prof. Xiaoyuan Chen Dr. Zijian Zhou State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics Center for Molecular Imaging and Translational Medicine School of Public Health Xiamen University Xiamen 361102 P. R. China International Institutes of Medicine The Fourth Affiliated Hospital of Zhejiang University School of Medicine Yiwu Zhejiang 322000 P. R. China Departments of Diagnostic Radiology and Surgery Clinical Imaging Research Centre Centre for Translational Medicine Nanomedicine Translational Research Program NUS Center for Nanomedicine Yong Loo Lin School of Medicine Departments of Chemical and Biomolecular Engineering and Biomedical Engineering Faculty of Engineering National University of Singapore Singapore 117597 Singapore

Combination therapy based on different mechanisms of cell death has shown promise in tumor therapy. However, when different modalities are integrated, the maximum synergy of the therapeutic effects is often lacking in the design. Herein, we report a cancer theranostic nanomedicine formula developed by considering the mechanisms of action of ferroptosis and the photothermal effect in combination therapy. The croconaine molecule was encapsulated as both a photothermal converter and an iron-chelating agent with BSA, thus leading to biocompatible and stable Cro-Fe@BSA nanoparticles (NPs). The Cro-Fe@BSA NPs in the tumor milieu showed an activated photothermal effect leading to enhanced radical formation owing to the temperature-dependent Fenton reaction kinetics, while radical formation during ferroptosis in turn prevented the heat-induced formation of heat shock proteins and thus the self-protection mechanism of cancer cells in response to heat. The activatable photoacoustic and magnetic resonance imaging performance of the Cro-Fe@BSA NPs also enabled safe and reliable cancer theranostics.

关键词： Cancer theranostics Combination therapy Ferroptosis Nanotechnology Photothermal effect

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The Chemistry of Organic Contrast Agents in the NIR-II Window

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Angewandte Chemie 2021年第14期134卷

作者： Dr. Jing Mu Ming Xiao Dr. Yu Shi Xuewen Geng Dr. Hui Li Prof. Yuxin Yin Prof. Xiaoyuan Chen Institute of Precision Medicine Peking University Shenzhen Hospital Shenzhen 518036 China Department of Biology University of Rochester Rochester NY 14627 USA Departments of Diagnostic Radiology Surgery Chemical and Biomolecular Engineering and Biomedical Engineering Yong Loo Lin School of Medicine and Faculty of Engineering National University of Singapore Singapore 119074 Singapore Nanomedicine Translational Research Program NUS Center for Nanomedicine Yong Loo Lin School of Medicine National University of Singapore Singapore 117597 Singapore Clinical Imaging Research Centre Centre for Translational Medicine Yong Loo Lin School of Medicine National University of Singapore Singapore 117599 Singapore

Optical imaging, especially fluorescence and photoacoustic imaging, is a non-invasive imaging approach with high spatial and temporal resolution and high sensitivity, compared to positron emission tomography (PET) or magnetic resonance imaging (MRI). Due to the merits of imaging using the second near-infrared (NIR-II) window, like deeper penetration depth, high signal-to-noise ratio, high resolution, and low tissue damage, researchers have devoted great effort to developing contrast agents with NIR-II absorption or emission. In this Review, we summarize recently developed organic luminescent and photoacoustic materials, ranging from small molecules to conjugated polymers. Then, we systematically introduce engineering strategies and describe the imaging performance classified by the skeleton cores. Finally, we elucidate the challenges and prospects of these NIR-II organic dyes for potential clinical applications. We expect our summary can inspire researchers to expand the spectrum of NIR-II contrast agents for diverse bioapplications.

关键词： fluorescence imaging organic fluorophores photoacoustic imaging second near-infrared (NIR-II)

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