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A Rapid Manual Solid Phase Peptide Synthesis Method for High-Throughput Peptide Production

Journal of biomedical Materials Research - Part A 2025年第5期113卷 e37922页

作者： Overby, Clyde Abraham, Brittany Adjei-Sowah, Emmanuella March, Alyson Ling, Kevin Basu, Sayantani Benoit, Danielle S. W. Department of Biomedical Engineering University of Rochester RochesterNY United States Center for Musculoskeletal Research University of Rochester RochesterNY United States Department of Chemical Engineering University of Rochester RochesterNY United States Materials Science Program University of Rochester RochesterNY United States Department of Bioengineering Knight Campus for Accelerating Scientific Impact University of Oregon EugeneOR United States

Solid phase peptide synthesis (SPPS) techniques are critical for developing and using peptides in various biomedical applications. However, typical synthesis routes used in SPPS are either resource-intensive (e.g., with automated synthesis or commercial services) or time-consuming (e.g., with manual benchtop synthesis). Here, a rapid manual synthesis method was developed to produce up to 8 peptides with fast cycle times simultaneously. Peptides synthesized manually were of equivalent or superior quality to those produced by in-house microwave-assisted automated peptide synthesis, with higher average crude purity of 70% compared to 50%. The method significantly reduced synthesis time, enabling the parallel coupling of up to 8 amino acids simultaneously in 15–20 min, as opposed to traditional benchtop peptide synthesis, which requires 80–150 min per amino acid. This approach offers an intermediate throughput between milligram-scale libraries and gram-scale single peptide synthesis, enabling rapid iteration for novel peptide designs without the need for expensive automated systems. As a result, peptide modifications, including incorporation of unnatural amino acids, can be explored, accelerating the development of peptides for a wide range of applications. © 2025 The Author(s). Journal of biomedical Materials Research Part A published by Wiley Periodicals LLC.

关键词： Medical applications

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Novel synthesis of manganese cobalt layered double hydroxide and sulfur-doped nickel cobalt layered double hydroxide composite as efficient active material of battery supercapacitor hybrids

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Journal of Energy Storage 2023年 57卷

作者： Hsiao, Yu-Cheng Liao, Chen-Hao Hsu, Chia-Shuo Yougbaré, Sibidou Lin, Lu-Yin Wu, Yung-Fu International PhD Program in Biomedical Engineering College of Biomedical Engineering Taipei Medical University Taipei11031 Taiwan Stanford Byers Center for Biodesign Stanford University CA94305-5428 United States Graduate Institute of Biomedical Optomechatronics College of Biomedical Engineering Taipei Medical University Taipei11031 Taiwan Cell Physiology and Molecular Image Research Center Wan Fang Hospital Taipei Medical University Taipei11696 Taiwan Department of Chemical Engineering and Biotechnology National Taipei University of Technology Taipei Taiwan Department of Chemical Engineering National Taiwan University of Science and Technology Taipei106 Taiwan /Nanoro 03 B.P 7192 Ouagadougou03 Burkina Faso Department of Chemical Engineering Ming Chi University of Technology New Taipei City24301 Taiwan

Nickel and cobalt layered double hydroxide (NiCo-LDH) is one of promising active materials of battery supercapacitor hybrids (BSH) as the clean renewable energy. Designing composites and doping heteroatoms are widely applied to solve poor conductivity, serious agglomeration, and structural defects of NiCo-LDH. In this work, manganese cobalt LDH (MnCo-LDH) is firstly incorporated in sulfur-doped NiCo-LDH (S-NiCo-LDH) on Ni foam (NF) via the hydrothermal process as a binder-free electrode of BSH. Favorable morphology with nanowires covered on the vertical grown nanosheet array is successfully designed for MnCo-LDH/S-NiCo-LDH with the large specific surface area and the well-established pore structure. The specific capacitances (CF) of 681.4, 953.9 and 1581.3 F/g are respectively achieved for the NiCo-LDH, S-NiCo-LDH, MnCo-LDH/S-NiCo-LDH electrodes at the current density of 1 A/g. The larger CF value of MnCo-LDH/S-NiCo-LDH is due to larger conductivity and effective charge transfer paths. A BSH assembled using MnCo-LDH/S-NiCo-LDH/NF and graphene/NF electrodes shows a wide potential window of 1.6 V, a large maximum energy density of 46.6 Wh/kg at 0.8 kW/kg, and an excellent cyclic stability with the CF retention of 81% and the Coulombic efficiency higher than 87% after 10,000 times charge/discharge process at the current density of 7 A/g. © 2022

关键词： Supercapacitor

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Artificial Intelligence in Cancer Immunotherapy: Navigating Challenges and Unlocking Opportunities

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engineering 2025年第1期44卷 12-16页

作者： Xiang, Wei Yu, Lu Chen, Xiaoyuan Herold, Marco J. Australian Centre for Artificial Intelligence in Medical Innovation La Trobe University MelbourneVIC3086 Australia School of Computing Engineering and Mathematical Sciences La Trobe University MelbourneVIC3086 Australia Department of Diagnostic Radiology Yong Loo Lin School of Medicine National University of Singapore Singapore119074 Singapore Department of Chemical and Biomolecular Engineering College of Design and Engineering National University of Singapore Singapore117575 Singapore Department of Biomedical Engineering College of Design and Engineering National University of Singapore Singapore117575 Singapore Department of Pharmacy and Pharmaceutical Sciences Faculty of Science National University of Singapore Singapore117544 Singapore Clinical Imaging Research Centre Centre for Translational Medicine Yong Loo Lin School of Medicine National University of Singapore Singapore117599 Singapore Nanomedicine Translational Research Program Yong Loo Lin School of Medicine National University of Singapore Singapore117597 Singapore Yong Loo Lin School of Medicine National University of Singapore Singapore138667 Singapore Singapore138673 Singapore Olivia Newton-John Cancer Research Institute HeidelbergVIC3084 Australia School of Cancer Medicine La Trobe University MelbourneVIC3086 Australia The Walter and Eliza Hall Institute of Medical Research ParkvilleVIC3052 Australia Department of Medical Biology University of Melbourne ParkvilleVIC3010 Australia

Cancer continues to be a major cause of global mortality rates, with conventional treatments such as chemotherapy and radiotherapy exhibiting inconsistent efficacy, high costs, and considerable side effects. Over the past decade, a promising alternative has emerged: cancer immunotherapy, which leverages the body’s immune system to identify and eradicate cancer cells. Significant progress has been made in several novel immunotherapies, including immune checkpoint inhibitors (ICIs), chimeric antigen receptor T-cell therapies, and personalized therapeutic cancer vaccines. However, the heterogeneity and complexity of cancer types still pose enormous challenges. The efficient use of large numbers of medical datasets is essential for overcoming these obstacles. Without artificial intelligence (AI), linking translational and clinical data to derive meaningful insights would remain an insurmountable task. Recently, single-cell RNA sequencing cell typing (scGPT), a pretrained generative model utilizing a database of more than 33 million cells, is developed to accurately extract important biological insights concerning cellular biology. A personalized learning workflow is also proposed as a simple and effective pipeline to discover neoantigens for cancer immunotherapy.

关键词： intelligence immunotherapy cancer artificial challenges navigating opportunities unlocking

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Comment on: “Development of a CLDN18.2-targeting immuno-PET probe for non-invasive imaging in gastrointestinal tumors”

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Journal of Pharmaceutical Analysis 2023年第9期13卷 958-959页

作者： Cuicui Li Xiaoyuan Chen Jingjing Zhang Department of Diagnostic Radiology Yong Loo Lin School of MedicineNational University of SingaporeSingapore119074Singapore Clinical Imaging Research Centre Centre for Translational MedicineYong Loo Lin School of MedicineNational University of SingaporeSingapore117599Singapore Department of Nuclear Medicine Beijing Friendship Hospital Affiliated to Capital Medical UniversityBeijing100050China Nanomedicine Translational Research Program Yong Loo Lin School of MedicineNational University of SingaporeSingapore117597Singapore Departments of Surgery Chemical and Biomolecular Engineeringand Biomedical EngineeringYong Loo Lin School of Medicine and College of Design and EngineeringNational University of SingaporeSingapore119074Singapore Institute of Molecular and Cell Biology Agency for ScienceTechnologyand Research(A*STAR)61 Biopolis DriveProteosSingapore138673Singapore

In the ever-evolving landscape of cancer research and treatment,the quest for novel and non-invasive imaging techniques has become crucial for accurate diagnosis and effective *** study[1]successfully developed a good manufacturing practices(GMP)grade ^(89)Zr-labeled anti-Claudin18.2(CLDN18.2)recombinant humanized antibody TST001.^(89)Zr-DFO-TST001 exhibited high radiochemical purity(>99%)and specific activity(24.15±1.34 GBq/mmol).It demonstrated good specificity and rapid tumor accumulation in vivo and in *** immuno-PET imaging,it enables non-invasive visualization and quantification of CLDN18.2 expression level in CLDN18.2-positive gastrointestinal tumor models.

关键词： CLDN1 gastrointestinal diagnosis

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engineering FRET biosensor for H3K9 acetylation imaging in single living cells

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Med-X 2024年第1期2卷 446-461页

作者： Shitian Li Chang Sun Reed E.S.Harrison Leonardo Cheng Li Gao Longwei Liu Yingxiao Wang Qin Peng Department of Bioengineering Institute of Engineering in MedicineUniversity of CaliforniaSan DiegoLa JollaCA 92093USA Biological Sciences Graduate Program University of CaliforniaSan DiegoLa JollaCA 92093USA Institute of Systems and Physical Biology Shenzhen Bay LaboratoryShenzhen 518132China Alfred E.Mann Department of Biomedical Engineering University of Southern CaliforniaLos AngelesCA 90089USA School of Chemical Engineering and Technology North University of ChinaTaiyuanShanxi 030051China

Histone acetylation is an important epigenetic modification that governs gene expression,chromatin changes in stress response,and cell fate *** biosensors have been developed for various epigenetic events to enable spatiotemporal tracking of sub-cellular signaling *** reported histone H3 acetylation biosensor recognizing two acetyl residues lacked *** this study,using a single bromodomain of the BRD4,we have developed a genetically encoded H3K9ac *** systematically investigated different combinations of the BET family protein as binding domains and performed site-saturated mutagenesis to optimize the biosensor,achieving a dynamic FRET change up to 30%under TSA *** the application of the optimized H3K9ac biosensor,we revealed different basal active chromatin architectures in invasive tumor cells compared to benign tumor ***,we found that H3K9ac level increased dramatically when cancer cells passed through microchannels,which models the physical constraints and mechanical microenvironmental conditions that cancer cells encounter when passing through narrow spaces within the *** result highlights the chromatin plasticity in response to external mechanical *** summary,our H3K9ac biosensor provides a versatile tool for mechanistic investigation of cell fate transition in cancer and mechanotransduction.

关键词： FRET biosensor H3K9 acetylation Nuclear deformation Cancer cell migration

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Snake-Scale Stimulated Robust Biomimetic Composite Triboelectric Layer for Energy Harvesting and Smart Health Monitoring

SSRN

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SSRN 2023年

作者： Lin, Zong-Hong Huang, Ming-Zheng Parashar, Parag Chen, An-Rong Shi, Shih-Chen Tseng, Yao-Hsuan Lim, Kee Chin Yeh, Hsuan-Yu Pal, Arnab Institute of Biomedical Engineering National Tsing Hua University Hsinchu30013 Taiwan Department of Biomedical Engineering National Taiwan University Taipei10617 Taiwan Department of Chemical Engineering National Taiwan University Taipei10617 Taiwan Department of Materials Science and Engineering National Tsing Hua University Hsinchu30013 Taiwan Department of Mechanical Engineering National Cheng Kung University Tainan70101 Taiwan International Intercollegiate Ph.D. Program National Tsing Hua University Hsinchu30013 Taiwan

Extreme frictional wear of triboelectric layers severely hinders long-term sustainability of triboelectric nanogenerators (TENGs) for efficient ambient energy harvesting. The state-of-the-art solutions necessitate sophisticated structural designs and complex packaging constraints, impeding the feasibility of TENGs for practical applications. Herein, inspired by the structures and compositions of snake scales, a biomimetic composite (BC) film is fabricated as a wear-resistant triboelectric contact layer. The successful formation of disulfide bond-facilitated cross-linkage of cysteine proteins in the keratin-based BC film promotes excellent mechanical resilience and durability, thereby solving the material abrasion challenges associated with solid-solid triboelectric layers. The BC film, with toothed microstructure, exhibits improved charge transfer, low friction, and consistent long-term stable outputs compared to commercial films. Furthermore, a self-powered BC film-based TENG is integrated into a bicycle for biomechanical energy harvesting, lightening warning signals for safer night ride with stable 300 V electrical output for at least 6 hours. Moreover, a smart health monitoring system is further proposed by embedding TENG-based sensors into the bicycle saddle, accurately capturing the rider’s pelvic-saddle interactions on varying terrain slopes. By leveraging the unique biomechanical information, machine learning-assisted user identification and terrain slope data classifications are achieved with high accuracies, laying a foundation for futuristic smart healthcare applications. This work provides a strategy to reduce material abrasion by exploiting the unique characteristics of a biomimetic material, facilitating a basis for efficient environmental energy harvesting and smart sensing. © 2023, The Authors. All rights reserved.

关键词： Nanogenerators

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Theranostic doxorubicin encapsulated FeAu alloy@metal-organic framework nanostructures enable magnetic hyperthermia and medical imaging in oral carcinoma

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Nanomedicine: Nanotechnology, Biology, and Medicine 2023年 48卷 102652-102652页

作者： Dhawan, Udesh Tseng, Ching-Li Wu, Ping-Hsuan Liao, Mei-Yi Wang, Huey-Yuan Wu, Kevin C.-W. Chung, Ren-Jei Centre for the Cellular Microenvironment Division of Biomedical Engineering School of Engineering University of Glasgow GlasgowG12 8LT United Kingdom Graduate Institute of Biomedical Materials and Tissue Engineering College of Biomedical Engineering Taipei Medical University Taipei City110 Taiwan International Ph. D. Program in Biomedical Engineering College of Biomedical Engineering Taipei Medical University Taipei City110 Taiwan Research Center of Biomedical Device College of Biomedical Engineering Taipei Medical University Taipei City110 Taiwan International Ph. D. Program in Cell Therapy and Regenerative Medicine College of Medicine Taipei Medical University Taipei City110 Taiwan Taipei106344 Taiwan Department of Applied Chemistry National Pingtung University Pingtung 90003 Taiwan Department of Stomatology MacKay Memorial Hospital Taipei104217 Taiwan Department of Chemical Engineering National Taiwan University Taipei10617 Taiwan Institute of Biomedical Engineering & Nanomedicine National Health Research Institute Keyan Road Zhunan Miaoli City350 Taiwan National Taiwan University Taipei106216 Taiwan

Metal-organic frameworks (MOFs) have emerged as attractive candidates in cancer theranostics due to their ability to envelop magnetic nanoparticles, resulting in reduced cytotoxicity and high porosity, enabling chemodrug encapsulation. Here, FeAu alloy nanoparticles (FeAu NPs) are synthesized and coated with MIL-100(Fe) MOFs to fabricate FeAu@MOF nanostructures. We encapsulated Doxorubicin within the nanostructures and evaluated the suitability of this platform for medical imaging and cancer theranostics. FeAu@MOF nanostructures (FeAu@MIL-100(Fe)) exhibited superparamagnetism, magnetic hyperthermia behavior and displayed DOX encapsulation and release efficiency of 69.95 % and 97.19 %, respectively, when stimulated with alternating magnetic field (AMF). In-vitro experiments showed that AMF-induced hyperthermia resulted in 90 % HSC-3 oral squamous carcinoma cell death, indicating application in cancer theranostics. Finally, in an in-vivo mouse model, FeAu@MOF nanostructures improved image contrast, reduced tumor volume by 30-fold and tumor weight by 10-fold, which translated to enhancement in cumulative survival, highlighting the prospect of this platform for oral cancer treatment. © 2023

关键词： Metal nanoparticles

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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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Exploring the Team Dynamics of Undergraduate engineering Virtual Teams During the Rapid Transition Online Due to COVID-19

Exploring the Team Dynamics of Undergraduate Engineering Vir...

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2021 ASEE Virtual Annual Conference, ASEE 2021

作者： Walsh, Alexis Rae Norris, Sarah E. Blalock, Nathaniel Mountain, Daniel Patrick Faber, Courtney June Department of Industrial and Systems Engineering University of Tennessee Knoxville United States Department of Mechanical Aerospace Biomedical Engineering University of Tennessee Knoxville United States Department of Chemical and Biomolecular Engineering University of Tennessee Knoxville United States Cook Grand Challenge Honors Program University of Tennessee Knoxville United States

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Importance of Standardizing Analytical Characterization Methodology for Improved Reliability of the Nanomedicine Literature

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Nano-Micro Letters 2022年第11期14卷 18-32页

作者： Shahriar Sharifi Nouf N.Mahmoud Elizabeth Voke Markita P.Landry Morteza Mahmoudi Department of Radiology and Precision Health Program Michigan State UniversityEast LansingMIUSA Faculty of Pharmacy Al-Zaytoonah University of JordanAmman 11733Jordan Department of Biomedical Sciences College of Health SciencesQU HealthQatar University2713 DohaQatar Department of Chemical and Biomolecular Engineering University of CaliforniaBerkeleyBerkeleyCAUSA Innovative Genomics Institute BerkeleyCAUSA California Institute for Quantitative Biosciences University of CaliforniaBerkeleyCAUSA Chan Zuckerberg Biohub San FranciscoCAUSA

Understanding the interaction between biological structures and nanoscale technologies,dubbed the nano-bio interface,is required for successful development of safe and efficient nanomedicine *** lack of a universal reporting system and decentralized methodologies for nanomaterial characterization have resulted in a low degree of reliability and reproducibility in the nanomedicine *** such,there is a strong need to establish a characterization system to support the reproducibility of nanoscience data particularly for studies seeking clinical ***,we discuss the existing key standards for addressing robust characterization of nanomaterials based on their intended use in medical devices or as *** also discuss the challenges surrounding implementation of such standard protocols and their implication for translation of nanotechnology into clinical ***,however,emphasize that practical implementation of standard protocols in experimental laboratories requires long-term planning through integration of stakeholders including institutions and funding agencies.

关键词： Characterization Nanomedicine Standard protocols Reproducibility Nanomedicine devices

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