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Baroth T, Loewner S, Heymann H, Cholewa F, Blume H, Blume C. An Intelligent and Efficient Workflow for Path-Oriented 3D Bioprinting of Tubular Scaffolds. 3D Print Addit Manuf 2024; 11:323-332. [PMID: 38389675 PMCID: PMC10880655 DOI: 10.1089/3dp.2022.0201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Modern 3D printing is a valuable tool for tissue engineering (TE), and the fabrication of complex geometries such as tubular scaffolds with adaptable structure, for example, as replacements for intestines, bronchi, esophagus, or vessels, could contribute to standardized procedures in the future of regenerative medicine. However, high-precision bioprinting of scaffolds for tubular TE applications remain a major challenge and is an arduous endeavor with currently available three-axis bioprinters, which are limited to planar, layer-by-layer printing processes. In this work, a novel, straightforward workflow for creating toolpaths and command sets for tubular scaffolds is presented. By combining a custom software application with commercial 3D design software, a comparatively large degree of design freedom was achieved while ensuring ease of use and extensibility for future research needs. As a hardware platform, two commercial 3D bioprinters were retrofitted with a rotary axis to accommodate cylindrical mandrels as print beds, overcoming the limitations of planar print beds. The printing process using the new method was evaluated in terms of the mechanical, actuation, and synchronization characteristics of the linear and rotating axes, as well as the stability of the printing process. In this context, it became clear that extrusion-based printing processes are very sensitive to positioning errors when used with small nozzles. Despite these technical difficulties, the new process can produce single-layer, multilayer, and multimaterial structures with a wide range of pore geometries. In addition, extrusion-based printing processes can be combined with melt electrowriting to produce durable scaffolds with features in the micrometer to millimeter range. Overall, the suitability of this setup for a wide range of TE applications has thus been demonstrated.
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Affiliation(s)
- Timo Baroth
- Institute of Microelectronic Systems, Leibniz University Hannover, Hannover, Germany
| | - Sebastian Loewner
- Institute of Technical Chemistry, Leibniz University Hannover, Hannover, Germany
| | - Henrik Heymann
- Institute of Microelectronic Systems, Leibniz University Hannover, Hannover, Germany
| | - Fabian Cholewa
- Institute of Microelectronic Systems, Leibniz University Hannover, Hannover, Germany
| | - Holger Blume
- Institute of Microelectronic Systems, Leibniz University Hannover, Hannover, Germany
| | - Cornelia Blume
- Institute of Technical Chemistry, Leibniz University Hannover, Hannover, Germany
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Li J, Zhang J, Wang J, Wang D, Yan Y, Huang J, Tang BZ. Insights into Self-Assembly of Nonplanar Molecules with Aggregation-Induced Emission Characteristics. ACS Nano 2022; 16:20559-20566. [PMID: 36383407 DOI: 10.1021/acsnano.2c07263] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Utilizing nonplanar conjugated molecules as building blocks facilitates the development of self-assembly but is fundamentally challenging. To study the self-assembly behavior, we herein demonstrate the self-assembly process of a nonplanar conjugated molecule with aggregation-induced emission (AIE) feature from an isolated molecule to an irregular cluster to a well-defined vesicle driven by amphiphiles. The superhigh aggregation-sensitive emission affords more precise and detailed information about the self-assembly process than traditional dyes. Meanwhile, the arrangements of the AIE-active molecule change from disordered to well-organized forms by reducing the twisted configuration during the transformation process, and the strong hydrophobicity of amphiphiles is crucial for such configuration and morphology transformations. Owing to the thermophilic bacteria-mimetic membranes, the obtained vesicles exhibit a property of superhigh thermal stability. They also display promising light-harvesting applications. This work not only deciphers the self-assembly of AIE molecules but also provides a strategy for nonplanar molecules to build well-organized self-assemblies.
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Affiliation(s)
- Jie Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China
| | - Jianyu Zhang
- Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong 999077, China
| | - Jianxing Wang
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China
| | - Dong Wang
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China
| | - Yun Yan
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jianbin Huang
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Ben Zhong Tang
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China
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Liang Y, Quan H, Bu T, Li X, Liu X, Wang S, He D, Jia Q, Zhang Y. Comparison of the Inhibitory Binding Modes Between the Planar Fascaplysin and Its Nonplanar Tetrahydro-β-carboline Analogs in CDK4. Front Chem 2021; 9:614154. [PMID: 33681142 PMCID: PMC7930575 DOI: 10.3389/fchem.2021.614154] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 01/07/2021] [Indexed: 11/13/2022] Open
Abstract
Fascaplysin is a natural marine product originating from sponges, attracting widespread attention due to its potential inhibitory activities against CDK4. However, its clinical application has been largely limited because of serious adverse effects caused by planar skeleton. To reduce the serious adverse effects, 18 tetrahydro-β-carboline analogs (compounds 6a-i and 7a-i) were designed and synthesized via breaking the planarity of fascaplysin, and the biological activities of the synthesized compounds were evaluated by MTT assay and CDK4/CycD3 enzyme inhibition assay. The title compounds showed varying degrees of inhibitory activities, especially the cytotoxicity of compound 6c against HeLa cells (IC50 = 1.03 ± 0.19 μM) with quite weak cytotoxicity toward the normal cells WI-38 (IC50 = 311.51 ± 56.06 μM), and the kinase inhibition test indicated that compound 6c was a potential CDK4 inhibitor. In order to further compare the action mechanisms of planar and nonplanar molecules on CDK4, the studied complexes of CDK4 bound with fascaplysin and three representative compounds (compound 6a-c) with bioactivities gradient were constructed by molecular docking and further verified through molecular dynamic simulation, which identified the key residues contributing to the ligands' binding. By comparing the binding modes of the constructed systems, it could be found that the residues contributing significantly to compound 6c's binding were highly consistent with those contributing significantly to fascaplysin's binding. Through the design, synthesis of the nonplanar fascaplysin derivatives, and binding mechanism analysis, some valuable hints for the discovery of antitumor drug candidates could be provided.
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Affiliation(s)
- Yan Liang
- Materia Medica Development Group, Institute of Medicinal Chemistry, Lanzhou University School of Pharmacy, Lanzhou, China
| | - Huili Quan
- The Fourth Hospital of Shijiazhuang, Shijiazhuang, China
| | - Tong Bu
- Department of Pharmacology, Hebei Medical University, Shijiazhuang, China
| | - Xuedong Li
- Department of Pharmacology, Hebei Medical University, Shijiazhuang, China
| | - Xingang Liu
- Department of Pharmacology, Hebei Medical University, Shijiazhuang, China
| | - Songsong Wang
- The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Dian He
- Materia Medica Development Group, Institute of Medicinal Chemistry, Lanzhou University School of Pharmacy, Lanzhou, China
| | - Qingzhong Jia
- Department of Pharmacology, Hebei Medical University, Shijiazhuang, China
| | - Yang Zhang
- Department of Pharmacology, Hebei Medical University, Shijiazhuang, China
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Zhou Y, Gan F, Zhang Y, He X, Shen C, Qiu H, Liu P. Selective Killing of Cancer Cells by Nonplanar Aromatic Hydrocarbon-Induced DNA Damage. Adv Sci (Weinh) 2019; 6:1901341. [PMID: 31728285 PMCID: PMC6839640 DOI: 10.1002/advs.201901341] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 08/26/2019] [Indexed: 05/05/2023]
Abstract
A large number of current chemotherapeutic agents prevent the growth of tumors by inhibiting DNA synthesis of cancer cells. It has been found recently that many planar polycyclic aromatic hydrocarbons (PAHs) derivatives, previously known as carcinogenic, display anticancer activity through DNA cross-linking. However, the practical use of these PAHs is substantially limited by their low therapeutic efficiency and selectivity toward most tumors. Herein, the anticancer property of a nonplanar PAH named [4]helicenium, which exhibits highly selective cytotoxicity toward liver, lung cancer, and leukemia cells compared with normal cells, is reported. Moreover, [4]helicenium effectively inhibits tumor growth in liver cancer-bearing mice and shows little side effects in normal mice. RNA sequencing and confirmatory results demonstrate that [4]helicenium induces more DNA damage in tumor cells than in normal cells, resulting in tumor cell cycle arrest and apoptosis increment. This study reveals an unexpected role and molecular mechanism for PAHs in selectively killing tumor cells and provides an effective strategy for precision cancer therapies.
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Affiliation(s)
- Yan Zhou
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteRen Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
- Central LaboratoryRen Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China
| | - Fuwei Gan
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong UniversityShanghai200240China
| | - Yuanliang Zhang
- State Key Laboratory of Medical GenomicsShanghai Institute of HematologyRuijin HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200025China
| | - Xiaozhen He
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteRen Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
- Central LaboratoryRen Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China
| | - Chengshuo Shen
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong UniversityShanghai200240China
| | - Huibin Qiu
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong UniversityShanghai200240China
| | - Peifeng Liu
- State Key Laboratory of Oncogenes and Related GenesShanghai Cancer InstituteRen Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200032China
- Central LaboratoryRen Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China
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Rojas JP, Torres Sevilla GA, Alfaraj N, Ghoneim MT, Kutbee AT, Sridharan A, Hussain MM. Nonplanar Nanoscale Fin Field Effect Transistors on Textile, Paper, Wood, Stone, and Vinyl via Soft Material-Enabled Double-Transfer Printing. ACS Nano 2015; 9:5255-5263. [PMID: 25933370 DOI: 10.1021/acsnano.5b00686] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The ability to incorporate rigid but high-performance nanoscale nonplanar complementary metal-oxide semiconductor (CMOS) electronics with curvilinear, irregular, or asymmetric shapes and surfaces is an arduous but timely challenge in enabling the production of wearable electronics with an in situ information-processing ability in the digital world. Therefore, we are demonstrating a soft-material enabled double-transfer-based process to integrate flexible, silicon-based, nanoscale, nonplanar, fin-shaped field effect transistors (FinFETs) and planar metal-oxide-semiconductor field effect transistors (MOSFETs) on various asymmetric surfaces to study their compatibility and enhanced applicability in various emerging fields. FinFET devices feature sub-20 nm dimensions and state-of-the-art, high-κ/metal gate stacks, showing no performance alteration after the transfer process. A further analysis of the transferred MOSFET devices, featuring 1 μm gate length, exhibits an ION value of nearly 70 μA/μm (VDS = 2 V, VGS = 2 V) and a low subthreshold swing of around 90 mV/dec, proving that a soft interfacial material can act both as a strong adhesion/interposing layer between devices and final substrate as well as a means to reduce strain, which ultimately helps maintain the device's performance with insignificant deterioration even at a high bending state.
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Affiliation(s)
- Jhonathan P Rojas
- †Integrated Nanotechnology Lab, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Galo A Torres Sevilla
- †Integrated Nanotechnology Lab, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Nasir Alfaraj
- †Integrated Nanotechnology Lab, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Mohamed T Ghoneim
- †Integrated Nanotechnology Lab, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Arwa T Kutbee
- †Integrated Nanotechnology Lab, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Ashvitha Sridharan
- ‡The KAUST Schools, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Muhammad Mustafa Hussain
- †Integrated Nanotechnology Lab, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
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