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Abdelhamid MAA, Son RG, Ki MR, Pack SP. Biosilica-coated carbonic anhydrase displayed on Escherichia coli: A novel design approach for efficient and stable biocatalyst for CO 2 sequestration. Int J Biol Macromol 2024; 277:134058. [PMID: 39038576 DOI: 10.1016/j.ijbiomac.2024.134058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 07/17/2024] [Accepted: 07/19/2024] [Indexed: 07/24/2024]
Abstract
A robust and stable carbonic anhydrase (CA) system is indispensable for effectively sequestering carbon dioxide to mitigate climate change. While microbial surface display technology has been employed to construct an economically promising cell-displayed CO2-capturing biocatalyst, the displayed CA enzymes were prone to inactivation due to their low stability in harsh conditions. Herein, drawing inspiration from biomineralized diatom frustules, we artificially introduced biosilica shell materials to the CA macromolecules displayed on Escherichia coli surfaces. Specifically, we displayed a fusion of CA and the diatom-derived silica-forming Sil3K peptide (CA-Sil3K) on the E. coli surface using the membrane anchor protein Lpp-OmpA linker. The displayed CA-Sil3K (dCA-Sil3K) fusion protein underwent a biosilicification reaction under mild conditions, resulting in nanoscale self-encapsulation of the displayed enzyme in biosilica. The biosilicified dCA-Sil3K (BS-dCA-Sil3K) exhibited improved thermal, pH, and protease stability and retained 63 % of its initial activity after ten reuses. Additionally, the BS-dCA-Sil3K biocatalyst significantly accelerated the CaCO3 precipitation rate, reducing the time required for the onset of CaCO3 formation by 92 % compared to an uncatalyzed reaction. Sedimentation of BS-dCA-Sil3K on a membrane filter demonstrated a reliable CO2 hydration application with superior long-term stability under desiccation conditions. This study may open new avenues for the nanoscale-encapsulation of enzymes with biosilica, offering effective strategies to provide efficient, stable, and economic cell-displayed biocatalysts for practical applications.
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Affiliation(s)
- Mohamed A A Abdelhamid
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea; Department of Botany and Microbiology, Faculty of Science, Minia University, Minia 61519, Egypt
| | - Ryeo Gang Son
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea
| | - Mi-Ran Ki
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea; Institute of Industrial Technology, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea.
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2
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How SC, Hsieh CJ, Yu CY. Entrapment of Cyanase from Thermomyces lanuginosus Using Biomimetic Silica and Its Application for Cyanate Bioremediation. Polymers (Basel) 2024; 16:2594. [PMID: 39339058 PMCID: PMC11435769 DOI: 10.3390/polym16182594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2024] [Revised: 08/25/2024] [Accepted: 09/06/2024] [Indexed: 09/30/2024] Open
Abstract
Cyanate, a toxic product from the chemical oxidation treatment of highly toxic cyanide, can be converted to harmless ammonia and carbon dioxide by cyanase (EC 4.2.1.104). Cyanase from Thermomyces lanuginosus was entrapped in biomimetic silica to improve stability and reusability. After entrapment, the enzyme's activity increased by two-fold, and the residual activity after 30-min of incubation at 60 °C also increased by two-fold, compared to the free enzyme. After being stored at room temperature for 28 days, the entrapped cyanase retained 79% of the initial activity, while the free form retained 61%. The immobilized cyanase was successfully applied to cyanate detoxification; the co-entrapment of carbonic anhydrase from Sulfurihydrogenibium azorense decreased the amount of bicarbonate necessary for cyanate detoxification by 50%. The cyanate degradation retained 53% of the initial value after the co-entrapped cyanate and carbonic anhydrase were reused five times.
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Affiliation(s)
- Su-Chun How
- Department of Chemical Engineering and Biotechnology, Tatung University, No. 40, Sec. 3, Zhongshan N. Rd., Taipei 104, Taiwan
| | - Chia-Jung Hsieh
- Department of Chemical Engineering and Biotechnology, Tatung University, No. 40, Sec. 3, Zhongshan N. Rd., Taipei 104, Taiwan
| | - Chi-Yang Yu
- Department of Chemical Engineering and Biotechnology, Tatung University, No. 40, Sec. 3, Zhongshan N. Rd., Taipei 104, Taiwan
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3
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Wang YR, Zhang XX, Chen XX, Yin XH, Yang M, Jiang K, Liu SC. Enhancement of Bone Repair in Diabetic Rats with Metformin-Modified Silicified Collagen Scaffolds. Adv Healthc Mater 2024:e2401430. [PMID: 39177124 DOI: 10.1002/adhm.202401430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 07/14/2024] [Indexed: 08/24/2024]
Abstract
Regenerating bone defects in diabetic rats presents a significant challenge due to the detrimental effects of reactive oxygen species and impaired autophagy on bone healing. To address these issues, a metformin-modified biomimetic silicified collagen scaffold is developed utilizing the principles of biomimetic silicification. In vitro and in vivo experiments demonstrated that the scaffold enhanced bone tissue regeneration within the diabetic microenvironment through the release of dual bio-factors. Further analysis reveals a potential therapeutic mechanism whereby these dual bio-factors synergistically promoted osteogenesis in areas of diabetic bone defects by improving mitochondrial autophagy and maintaining redox balance. The present study provides critical insights into the advancement of tissue engineering strategies aimed at bone regeneration in diabetic patients. The study also sheds light on the underlying biological mechanisms.
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Affiliation(s)
- Yi-Rong Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Operative Dentistry & Endodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, 710032, P. R. China
| | - Xiao-Xia Zhang
- Xi'an International University, Xi'an, Shaanxi, 710032, P. R. China
| | - Xu-Xu Chen
- The Department of Orthopedics, Hong-Hui Hospital Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, 710032, P. R. China
| | - Xin-Hua Yin
- The Department of Orthopedics, Hong-Hui Hospital Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, 710032, P. R. China
| | - Ming Yang
- The Department of Orthopedics, Hong-Hui Hospital Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, 710032, P. R. China
| | - Kuo Jiang
- The Department of Orthopedics, Hong-Hui Hospital Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, 710032, P. R. China
| | - Shi-Chang Liu
- The Department of Orthopedics, Hong-Hui Hospital Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, 710032, P. R. China
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4
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Abdelhamid MAA, Khalifa HO, Yoon HJ, Ki MR, Pack SP. Microbial Immobilized Enzyme Biocatalysts for Multipollutant Mitigation: Harnessing Nature's Toolkit for Environmental Sustainability. Int J Mol Sci 2024; 25:8616. [PMID: 39201301 PMCID: PMC11355015 DOI: 10.3390/ijms25168616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 07/30/2024] [Accepted: 07/31/2024] [Indexed: 09/02/2024] Open
Abstract
The ever-increasing presence of micropollutants necessitates the development of environmentally friendly bioremediation strategies. Inspired by the remarkable versatility and potent catalytic activities of microbial enzymes, researchers are exploring their application as biocatalysts for innovative environmental cleanup solutions. Microbial enzymes offer remarkable substrate specificity, biodegradability, and the capacity to degrade a wide array of pollutants, positioning them as powerful tools for bioremediation. However, practical applications are often hindered by limitations in enzyme stability and reusability. Enzyme immobilization techniques have emerged as transformative strategies, enhancing enzyme stability and reusability by anchoring them onto inert or activated supports. These improvements lead to more efficient pollutant degradation and cost-effective bioremediation processes. This review delves into the diverse immobilization methods, showcasing their success in degrading various environmental pollutants, including pharmaceuticals, dyes, pesticides, microplastics, and industrial chemicals. By highlighting the transformative potential of microbial immobilized enzyme biocatalysts, this review underscores their significance in achieving a cleaner and more sustainable future through the mitigation of micropollutant contamination. Additionally, future research directions in areas such as enzyme engineering and machine learning hold immense promise for further broadening the capabilities and optimizing the applications of immobilized enzymes in environmental cleanup.
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Affiliation(s)
- Mohamed A. A. Abdelhamid
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-ro 2511, Sejong 30019, Republic of Korea; (M.A.A.A.); (M.-R.K.)
- Department of Botany and Microbiology, Faculty of Science, Minia University, Minia 61519, Egypt
- Faculty of Education and Art, Sohar University, Sohar 311, Oman
| | - Hazim O. Khalifa
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, United Arab Emirates University, Al Ain P.O. Box 1555, United Arab Emirates;
- Department of Pharmacology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt
| | - Hyo Jik Yoon
- Institute of Natural Science, Korea University, Sejong-ro 2511, Sejong 30019, Republic of Korea;
| | - Mi-Ran Ki
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-ro 2511, Sejong 30019, Republic of Korea; (M.A.A.A.); (M.-R.K.)
- Institute of Industrial Technology, Korea University, Sejong-ro 2511, Sejong 30019, Republic of Korea
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-ro 2511, Sejong 30019, Republic of Korea; (M.A.A.A.); (M.-R.K.)
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5
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Shukla CA, Moghadam RP, Patwardhan SV, Ranade VV. Feasibility and Advantages of Continuous Synthesis of Bioinspired Silica Using CO 2 as an Acidifying Agent. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2024; 12:10260-10268. [PMID: 38994544 PMCID: PMC11234356 DOI: 10.1021/acssuschemeng.4c03101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 05/31/2024] [Accepted: 06/10/2024] [Indexed: 07/13/2024]
Abstract
In this work, we present a method for the continuous synthesis of bioinspired porous silica (BIS) particles using carbon dioxide (CO2) as an acidifying agent. Typical BIS synthesis uses strong mineral acids (e.g., HCl) to initiate the hydrolysis and subsequent condensation reactions. The use of strong acids leads to challenges in controlling the reaction pH. The synthesis approach proposed in this work offers for the first time CO2 as an attractive alternative for the synthesis of BIS and demonstrates the continuous process. The developed method leverages the mild acidic and the self-buffering nature of the CO2 combined with additional options for controlling mass transfer rates to facilitate enhanced control of pH, which is crucial for controlling the properties of synthesized BIS. Proof of concept experiments conducted in continuous mode demonstrated a yield of over 70% and a surface area exceeding 500 m2/g. These results indicate the successful synthesis of BIS using CO2 with properties in the desired range. The enhanced pH control offered by this CO2-based process will facilitate the implementation of a sustainable and robust continuous process for BIS synthesis.
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Affiliation(s)
- Chinmay A Shukla
- Multiphase Reactors and Process Intensification Group, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Roja P Moghadam
- Multiphase Reactors and Process Intensification Group, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Siddharth V Patwardhan
- Green Nanomaterials Research Group, Department of Chemical and Biological Engineering, The University of Sheffield, Mappin Street, Sheffield S1 3JD, U.K
| | - Vivek V Ranade
- Multiphase Reactors and Process Intensification Group, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
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6
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Kim SH, Ki MR, Han Y, Pack SP. Biomineral-Based Composite Materials in Regenerative Medicine. Int J Mol Sci 2024; 25:6147. [PMID: 38892335 PMCID: PMC11173312 DOI: 10.3390/ijms25116147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/21/2024] [Accepted: 05/29/2024] [Indexed: 06/21/2024] Open
Abstract
Regenerative medicine aims to address substantial defects by amplifying the body's natural regenerative abilities and preserving the health of tissues and organs. To achieve these goals, materials that can provide the spatial and biological support for cell proliferation and differentiation, as well as the micro-environment essential for the intended tissue, are needed. Scaffolds such as polymers and metallic materials provide three-dimensional structures for cells to attach to and grow in defects. These materials have limitations in terms of mechanical properties or biocompatibility. In contrast, biominerals are formed by living organisms through biomineralization, which also includes minerals created by replicating this process. Incorporating biominerals into conventional materials allows for enhanced strength, durability, and biocompatibility. Specifically, biominerals can improve the bond between the implant and tissue by mimicking the micro-environment. This enhances cell differentiation and tissue regeneration. Furthermore, biomineral composites have wound healing and antimicrobial properties, which can aid in wound repair. Additionally, biominerals can be engineered as drug carriers, which can efficiently deliver drugs to their intended targets, minimizing side effects and increasing therapeutic efficacy. This article examines the role of biominerals and their composite materials in regenerative medicine applications and discusses their properties, synthesis methods, and potential uses.
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Affiliation(s)
- Sung Ho Kim
- Department of Biotechnology and Bioinformatics, Korea University, 2511 Sejong-ro, Sejong 30019, Republic of Korea; (S.H.K.); (M.-R.K.)
| | - Mi-Ran Ki
- Department of Biotechnology and Bioinformatics, Korea University, 2511 Sejong-ro, Sejong 30019, Republic of Korea; (S.H.K.); (M.-R.K.)
- Institute of Industrial Technology, Korea University, 2511 Sejong-ro, Sejong 30019, Republic of Korea
| | - Youngji Han
- Biological Clock-Based Anti-Aging Convergence RLRC, Korea University, 2511 Sejong-ro, Sejong 30019, Republic of Korea;
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, 2511 Sejong-ro, Sejong 30019, Republic of Korea; (S.H.K.); (M.-R.K.)
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7
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Abdelhamid MAA, Khalifa HO, Ki MR, Pack SP. Nanoengineered Silica-Based Biomaterials for Regenerative Medicine. Int J Mol Sci 2024; 25:6125. [PMID: 38892312 PMCID: PMC11172759 DOI: 10.3390/ijms25116125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 05/24/2024] [Accepted: 05/27/2024] [Indexed: 06/21/2024] Open
Abstract
The paradigm of regenerative medicine is undergoing a transformative shift with the emergence of nanoengineered silica-based biomaterials. Their unique confluence of biocompatibility, precisely tunable porosity, and the ability to modulate cellular behavior at the molecular level makes them highly desirable for diverse tissue repair and regeneration applications. Advancements in nanoengineered silica synthesis and functionalization techniques have yielded a new generation of versatile biomaterials with tailored functionalities for targeted drug delivery, biomimetic scaffolds, and integration with stem cell therapy. These functionalities hold the potential to optimize therapeutic efficacy, promote enhanced regeneration, and modulate stem cell behavior for improved regenerative outcomes. Furthermore, the unique properties of silica facilitate non-invasive diagnostics and treatment monitoring through advanced biomedical imaging techniques, enabling a more holistic approach to regenerative medicine. This review comprehensively examines the utilization of nanoengineered silica biomaterials for diverse applications in regenerative medicine. By critically appraising the fabrication and design strategies that govern engineered silica biomaterials, this review underscores their groundbreaking potential to bridge the gap between the vision of regenerative medicine and clinical reality.
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Affiliation(s)
- Mohamed A. A. Abdelhamid
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea;
- Department of Botany and Microbiology, Faculty of Science, Minia University, Minia 61519, Egypt
| | - Hazim O. Khalifa
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, United Arab Emirates University, Al Ain P.O. Box 1555, United Arab Emirates;
- Department of Pharmacology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt
| | - Mi-Ran Ki
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea;
- Institute of Industrial Technology, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea;
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Abdelhamid MAA, Ki MR, Pack SP. Biominerals and Bioinspired Materials in Biosensing: Recent Advancements and Applications. Int J Mol Sci 2024; 25:4678. [PMID: 38731897 PMCID: PMC11083057 DOI: 10.3390/ijms25094678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 04/18/2024] [Accepted: 04/19/2024] [Indexed: 05/13/2024] Open
Abstract
Inspired by nature's remarkable ability to form intricate minerals, researchers have unlocked transformative strategies for creating next-generation biosensors with exceptional sensitivity, selectivity, and biocompatibility. By mimicking how organisms orchestrate mineral growth, biomimetic and bioinspired materials are significantly impacting biosensor design. Engineered bioinspired materials offer distinct advantages over their natural counterparts, boasting superior tunability, precise controllability, and the ability to integrate specific functionalities for enhanced sensing capabilities. This remarkable versatility enables the construction of various biosensing platforms, including optical sensors, electrochemical sensors, magnetic biosensors, and nucleic acid detection platforms, for diverse applications. Additionally, bioinspired materials facilitate the development of smartphone-assisted biosensing platforms, offering user-friendly and portable diagnostic tools for point-of-care applications. This review comprehensively explores the utilization of naturally occurring and engineered biominerals and materials for diverse biosensing applications. We highlight the fabrication and design strategies that tailor their functionalities to address specific biosensing needs. This in-depth exploration underscores the transformative potential of biominerals and materials in revolutionizing biosensing, paving the way for advancements in healthcare, environmental monitoring, and other critical fields.
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Affiliation(s)
- Mohamed A. A. Abdelhamid
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-ro 2511, Sejong 30019, Republic of Korea; (M.A.A.A.); (M.-R.K.)
- Department of Botany and Microbiology, Faculty of Science, Minia University, Minia 61519, Egypt
| | - Mi-Ran Ki
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-ro 2511, Sejong 30019, Republic of Korea; (M.A.A.A.); (M.-R.K.)
- Institute of Industrial Technology, Korea University, Sejong-ro 2511, Sejong 30019, Republic of Korea
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-ro 2511, Sejong 30019, Republic of Korea; (M.A.A.A.); (M.-R.K.)
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9
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Gorantla A, Hall JTVE, Troidle A, Janjic JM. Biomaterials for Protein Delivery: Opportunities and Challenges to Clinical Translation. MICROMACHINES 2024; 15:533. [PMID: 38675344 PMCID: PMC11052476 DOI: 10.3390/mi15040533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/11/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024]
Abstract
The development of biomaterials for protein delivery is an emerging field that spans materials science, bioengineering, and medicine. In this review, we highlight the immense potential of protein-delivering biomaterials as therapeutic options and discuss the multifaceted challenges inherent to the field. We address current advancements and approaches in protein delivery that leverage stimuli-responsive materials, harness advanced fabrication techniques like 3D printing, and integrate nanotechnologies for greater targeting and improved stability, efficacy, and tolerability profiles. We also discuss the demand for highly complex delivery systems to maintain structural integrity and functionality of the protein payload. Finally, we discuss barriers to clinical translation, such as biocompatibility, immunogenicity, achieving reliable controlled release, efficient and targeted delivery, stability issues, scalability of production, and navigating the regulatory landscape for such materials. Overall, this review summarizes insights from a survey of the current literature and sheds light on the interplay between innovation and the practical implementation of biomaterials for protein delivery.
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Affiliation(s)
- Amogh Gorantla
- Department of Engineering, Wake Forest University, Winston-Salem, NC 27109, USA;
| | | | | | - Jelena M. Janjic
- School of Pharmacy, Duquesne University, Pittsburgh, PA 15282, USA;
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10
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Min KH, Kim DH, Youn S, Pack SP. Biomimetic Diatom Biosilica and Its Potential for Biomedical Applications and Prospects: A Review. Int J Mol Sci 2024; 25:2023. [PMID: 38396701 PMCID: PMC10889112 DOI: 10.3390/ijms25042023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 01/28/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Diatom biosilica is an important natural source of porous silica, with three-dimensional ordered and nanopatterned structures referred to as frustules. The unique features of diatom frustules, such as their high specific surface area, thermal stability, biocompatibility, and adaptable surface chemistry, render diatoms valuable materials for high value-added applications. These attributes make diatoms an exceptional cost-effective raw material for industrial use. The functionalization of diatom biosilica surface improves its biophysical properties and increases the potential applications. This review focuses on the potential uses of diatom biosilica including traditional approaches and recent progress in biomedical applications. Not only well-studied drug delivery systems but also promising uses on bone regeneration and wound healing are covered. Furthermore, considerable aspects and possible future directions for the use of diatom biosilica materials are proposed to develop biomedical applications and merit further exploration.
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Affiliation(s)
- Ki Ha Min
- Institution of Industrial Technology, Korea University, Sejong 30019, Republic of Korea;
| | - Dong Hyun Kim
- Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea; (D.H.K.); (S.Y.)
| | - Sol Youn
- Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea; (D.H.K.); (S.Y.)
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea; (D.H.K.); (S.Y.)
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11
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Chen L, Zhang S, Duan Y, Song X, Chang M, Feng W, Chen Y. Silicon-containing nanomedicine and biomaterials: materials chemistry, multi-dimensional design, and biomedical application. Chem Soc Rev 2024; 53:1167-1315. [PMID: 38168612 DOI: 10.1039/d1cs01022k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
The invention of silica-based bioactive glass in the late 1960s has sparked significant interest in exploring a wide range of silicon-containing biomaterials from the macroscale to the nanoscale. Over the past few decades, these biomaterials have been extensively explored for their potential in diverse biomedical applications, considering their remarkable bioactivity, excellent biocompatibility, facile surface functionalization, controllable synthesis, etc. However, to expedite the clinical translation and the unexpected utilization of silicon-composed nanomedicine and biomaterials, it is highly desirable to achieve a thorough comprehension of their characteristics and biological effects from an overall perspective. In this review, we provide a comprehensive discussion on the state-of-the-art progress of silicon-composed biomaterials, including their classification, characteristics, fabrication methods, and versatile biomedical applications. Additionally, we highlight the multi-dimensional design of both pure and hybrid silicon-composed nanomedicine and biomaterials and their intrinsic biological effects and interactions with biological systems. Their extensive biomedical applications span from drug delivery and bioimaging to therapeutic interventions and regenerative medicine, showcasing the significance of their rational design and fabrication to meet specific requirements and optimize their theranostic performance. Additionally, we offer insights into the future prospects and potential challenges regarding silicon-composed nanomedicine and biomaterials. By shedding light on these exciting research advances, we aspire to foster further progress in the biomedical field and drive the development of innovative silicon-composed nanomedicine and biomaterials with transformative applications in biomedicine.
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Affiliation(s)
- Liang Chen
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China.
| | - Shanshan Zhang
- Department of Ultrasound Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P. R. China
| | - Yanqiu Duan
- Laboratory Center, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, P. R. China.
| | - Xinran Song
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China.
| | - Meiqi Chang
- Laboratory Center, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, P. R. China.
| | - Wei Feng
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China.
| | - Yu Chen
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China.
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12
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Zuo L, Yang Y, Zhang H, Ma Z, Xin Q, Ding C, Li J. Bioinspired Multiscale Mineralization: From Fundamentals to Potential Applications. Macromol Biosci 2024; 24:e2300348. [PMID: 37689995 DOI: 10.1002/mabi.202300348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/06/2023] [Indexed: 09/11/2023]
Abstract
The wondrous and imaginative designs of nature have always been an inexhaustible treasure trove for material scientists. Throughout the long evolutionary process, biominerals with hierarchical structures possess some specific advantages such as outstanding mechanical properties, biological functions, and sensing performances, the formation of which (biomineralization) is delicately regulated by organic component. Provoked by the subtle structures and profound principles of nature, bioinspired functional minerals can be designed with the participation of organic molecules. Because of the designable morphology and functions, multiscale mineralization has attracted more and more attention in the areas of medicine, chemistry, biology, and material science. This review provides a summary of current advancements in this extending topic. The mechanisms underlying mineralization is first concisely elucidated. Next, several types of minerals are categorized according to their structural characteristic, as well as the different potential applications of these materials. At last, a comprehensive overview of future developments for bioinspired multiscale mineralization is given. Concentrating on the mechanism of fabrication and broad application prospects of multiscale mineralization, the hope is to provide inspirations for the design of other functional materials.
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Affiliation(s)
- Liangrui Zuo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Yifei Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Hongbo Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Zhengxin Ma
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Qiangwei Xin
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Chunmei Ding
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Jianshu Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
- Med-X Center for Materials, Sichuan University, Sichuan, 610041, China
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13
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Shimizu K, Nishi M, Sakate Y, Kawanami H, Bito T, Arima J, Leria L, Maldonado M. Silica-associated proteins from hexactinellid sponges support an alternative evolutionary scenario for biomineralization in Porifera. Nat Commun 2024; 15:181. [PMID: 38185711 PMCID: PMC10772126 DOI: 10.1038/s41467-023-44226-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 12/04/2023] [Indexed: 01/09/2024] Open
Abstract
Metazoans use silicon traces but rarely develop extensive silica skeletons, except for the early-diverging lineage of sponges. The mechanisms underlying metazoan silicification remain incompletely understood, despite significant biotechnological and evolutionary implications. Here, the characterization of two proteins identified from hexactinellid sponge silica, hexaxilin and perisilin, supports that the three classes of siliceous sponges (Hexactinellida, Demospongiae, and Homoscleromorpha) use independent protein machineries to build their skeletons, which become non-homologous structures. Hexaxilin forms the axial filament to intracellularly pattern the main symmetry of the skeletal parts, while perisilin appears to operate in their thickening, guiding extracellular deposition of peripheral silica, as does glassin, a previously characterized hexactinellid silicifying protein. Distant hexaxilin homologs occur in some bilaterians with siliceous parts, suggesting putative conserved silicifying activity along metazoan evolution. The findings also support that ancestral Porifera were non-skeletonized, acquiring silica skeletons only after diverging into major classes, what reconciles molecular-clock dating and the fossil record.
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Affiliation(s)
- Katsuhiko Shimizu
- Platform for Community-based Research and Education, Tottori University, 4-101, Koyama-cho, Minami, Tottori, 680-8550, Japan.
| | - Michika Nishi
- Division of Agricultural Science, Graduate studies of Sustainability Science, Tottori University Graduate School, 4-101, Koyama-cho, Minami, Tottori, 680-8553, Japan
| | - Yuto Sakate
- Division of Agricultural Science, Graduate studies of Sustainability Science, Tottori University Graduate School, 4-101, Koyama-cho, Minami, Tottori, 680-8553, Japan
| | - Haruka Kawanami
- Department of Life Environmental Agriculture, Faculty of Agriculture, Tottori University, 4-101, Koyama-cho, Minami, Tottori, 680-8553, Japan
| | - Tomohiro Bito
- Department of Life Environmental Agriculture, Faculty of Agriculture, Tottori University, 4-101, Koyama-cho, Minami, Tottori, 680-8553, Japan
| | - Jiro Arima
- Department of Life Environmental Agriculture, Faculty of Agriculture, Tottori University, 4-101, Koyama-cho, Minami, Tottori, 680-8553, Japan
| | - Laia Leria
- Sponge Ecobiology and Biotechnology Group, Center for Advanced Studies of Blanes (CEAB, CSIC), Blanes, 17300, Spain
| | - Manuel Maldonado
- Sponge Ecobiology and Biotechnology Group, Center for Advanced Studies of Blanes (CEAB, CSIC), Blanes, 17300, Spain.
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14
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Ki MR, Kim SH, Park TI, Pack SP. Self-Entrapment of Antimicrobial Peptides in Silica Particles for Stable and Effective Antimicrobial Peptide Delivery System. Int J Mol Sci 2023; 24:16423. [PMID: 38003614 PMCID: PMC10671715 DOI: 10.3390/ijms242216423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/07/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
Antimicrobial peptides (AMPs) have emerged as a promising solution to tackle bacterial infections and combat antibiotic resistance. However, their vulnerability to protease degradation and toxicity towards mammalian cells has hindered their clinical application. To overcome these challenges, our study aims to develop a method to enhance the stability and safety of AMPs applicable to effective drug-device combination products. The KR12 antimicrobial peptide was chosen, and in order to further enhance its delivery and efficacy the human immunodeficiency virus TAT protein-derived cell-penetrating peptide (CPP) was fused to form CPP-KR12. A new product, CPP-KR12@Si, was developed by forming silica particles with self-entrapped CPP-KR12 peptide using biomimetic silica precipitability because of its cationic nature. Peptide delivery from CPP-KR12@Si to bacteria and cells was observed at a slightly delivered rate, with improved stability against trypsin treatment and a reduction in cytotoxicity compared to CPP-KR12. Finally, the antimicrobial potential of the CPP-KR12@Si/bone graft substitute (BGS) combination product was demonstrated. CPP-KR12 is coated in the form of submicron-sized particles on the surface of the BGS. Self-entrapped AMP in silica nanoparticles is a safe and effective AMP delivery method that will be useful for developing a drug-device combination product for tissue regeneration.
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Affiliation(s)
- Mi-Ran Ki
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-ro 2511, Sejong 30019, Republic of Korea
- Institute of Industrial Technology, Korea University, Sejong-ro 2511, Sejong 30019, Republic of Korea
| | - Sung Ho Kim
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-ro 2511, Sejong 30019, Republic of Korea
| | - Tae In Park
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-ro 2511, Sejong 30019, Republic of Korea
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-ro 2511, Sejong 30019, Republic of Korea
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15
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Chen YX, He JT, Wu MC, Liu ZL, Xia PJ, Chen K, Xiang HY, Yang H. Visible-light-driven oxidation of organosilanes by a charge-transfer complex. Chem Commun (Camb) 2023; 59:6588-6591. [PMID: 37190787 DOI: 10.1039/d3cc01972a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Direct oxidation of organosilanes is one of the most straightforward ways to access silanols. Herein, we describe a novel photo-induced strategy for oxidation of organosilanes to access silanols, promoted by a photoactive charge-transfer complex (CTC) between sodium benzenesulfinate and molecular O2. A streamlined sequence transformation of organosilanes to silyl ethers was also readily achieved. This developed protocol represents the first example of CTC-based oxidation of organosilanes, offering a facile approach to access a series of silanol and silyl ether products.
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Affiliation(s)
- Yi-Xuan Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.
| | - Jun-Tao He
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.
| | - Mei-Chun Wu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.
- College of Chemistry and Chemical Engineering, Huaihua University, Huaihua 418008, P. R. China
| | - Zhi-Lin Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.
| | - Peng-Ju Xia
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China
| | - Kai Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.
| | - Hao-Yue Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, Henan, P. R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.
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16
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Li Y, Xu C, Lei C. The Delivery and Activation of Growth Factors Using Nanomaterials for Bone Repair. Pharmaceutics 2023; 15:pharmaceutics15031017. [PMID: 36986877 PMCID: PMC10052849 DOI: 10.3390/pharmaceutics15031017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
Bone regeneration is a comprehensive process that involves different stages, and various growth factors (GFs) play crucial roles in the entire process. GFs are currently widely used in clinical settings to promote bone repair; however, the direct application of GFs is often limited by their fast degradation and short local residual time. Additionally, GFs are expensive, and their use may carry risks of ectopic osteogenesis and potential tumor formation. Nanomaterials have recently shown great promise in delivering GFs for bone regeneration, as they can protect fragile GFs and control their release. Moreover, functional nanomaterials can directly activate endogenous GFs, modulating the regeneration process. This review provides a summary of the latest advances in using nanomaterials to deliver exogenous GFs and activate endogenous GFs to promote bone regeneration. We also discuss the potential for synergistic applications of nanomaterials and GFs in bone regeneration, along with the challenges and future directions that need to be addressed.
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Affiliation(s)
- Yiwei Li
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Chun Xu
- School of Dentistry, The University of Queensland, Brisbane, QLD 4006, Australia
| | - Chang Lei
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
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17
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Yang W, Zhou Y, Jin B, Qi X, Cai B, Yin Q, Pfaendtner J, De Yoreo JJ, Chen CL. Designing sequence-defined peptoids for fibrillar self-assembly and silicification. J Colloid Interface Sci 2023; 634:450-459. [PMID: 36542974 DOI: 10.1016/j.jcis.2022.11.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 11/10/2022] [Accepted: 11/27/2022] [Indexed: 11/30/2022]
Abstract
In the biological environment, mineral crystals exquisitely controlled by biomacromolecules often show intricate hierarchical structures and superior mechanical properties. Among these biominerals, spicules, hybrid silica/protein superstructures serving as skeletal elements in demosponges, represent an excellent example for motivating the synthesis of silica materials. Herein, by designing sequence-defined peptoids containing side chains with a strong binding to silica, we demonstrated that self-assembly of these peptoids into fiber structures enables the mimicking of both biocatalytic and templating functions of silicatein filaments for the formation of silica fibers at near-neutral pH and ambient temperature. We further showed that the presence of amino groups is significant for the nucleation of silica on self-assembled peptoid nanofibers. Molecular dynamics simulation further confirmed that having silica-binding of amino side chains is critical for self-assembled peptoid fibers in triggering silica formation. We demonstrated that tuning inter-peptoid interactions by varying carboxyl and amino side chains significantly influences the assembly kinetics and final morphologies of peptoid assemblies as scaffolds for directing silica mineralization to form silica spheres, fibers, and sheets. The formation of silica shell on peptoid fibers increased the mechanical property of peptoid hydrogel materials by nearly 1000-fold, highlighting the great potential of using silicification to enhance the mechanical property of hydrogel materials for applications including tissue engineering. Since peptoids are highly robust and programmable, we expect that self-assembly of peptoids containing solid-binding side chains into hierarchical materials opens new opportunities in the design and synthesis of highly tunable scaffolds that direct the formation of composite nanomaterials.
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Affiliation(s)
- Wenchao Yang
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352, United States; School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China
| | - Yicheng Zhou
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352, United States
| | - Biao Jin
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352, United States
| | - Xin Qi
- Department of Chemical Engineering, University of Washington, Seattle, WA 98195, United States
| | - Bin Cai
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352, United States; School of Chemistry and Chemical Engineering, Shandong University, Shandong 250100, China
| | - Qiuxiang Yin
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China; The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin University, Tianjin 300072, China
| | - Jim Pfaendtner
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352, United States; Department of Chemical Engineering, University of Washington, Seattle, WA 98195, United States
| | - James J De Yoreo
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352, United States; Materials Science and Engineering, University of Washington, Seattle, WA 98105, United States
| | - Chun-Long Chen
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352, United States; Department of Chemical Engineering, University of Washington, Seattle, WA 98195, United States.
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18
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Biomedical applications of solid-binding peptides and proteins. Mater Today Bio 2023; 19:100580. [PMID: 36846310 PMCID: PMC9950531 DOI: 10.1016/j.mtbio.2023.100580] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/06/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023] Open
Abstract
Over the past decades, solid-binding peptides (SBPs) have found multiple applications in materials science. In non-covalent surface modification strategies, solid-binding peptides are a simple and versatile tool for the immobilization of biomolecules on a vast variety of solid surfaces. Especially in physiological environments, SBPs can increase the biocompatibility of hybrid materials and offer tunable properties for the display of biomolecules with minimal impact on their functionality. All these features make SBPs attractive for the manufacturing of bioinspired materials in diagnostic and therapeutic applications. In particular, biomedical applications such as drug delivery, biosensing, and regenerative therapies have benefited from the introduction of SBPs. Here, we review recent literature on the use of solid-binding peptides and solid-binding proteins in biomedical applications. We focus on applications where modulating the interactions between solid materials and biomolecules is crucial. In this review, we describe solid-binding peptides and proteins, providing background on sequence design and binding mechanism. We then discuss their application on materials relevant for biomedicine (calcium phosphates, silicates, ice crystals, metals, plastics, and graphene). Although the limited characterization of SBPs still represents a challenge for their design and widespread application, our review shows that SBP-mediated bioconjugation can be easily introduced into complex designs and on nanomaterials with very different surface chemistries.
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19
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Ki MR, Park KS, Abdelhamid MAA, Pack SP. Novel silicatein-like protein for biosilica production from Amphimedon queenslandica and its use in osteogenic composite fabrication. KOREAN J CHEM ENG 2023. [DOI: 10.1007/s11814-022-1314-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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20
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Qiu Y, Lin Y, Zeng B, Qin P, Yi Z, Zhang G. Revealing the role of tunable amino acid residues in elastin-like polypeptides (ELPs)-mediated biomimetic silicification. Int J Biol Macromol 2023; 227:105-112. [PMID: 36539170 DOI: 10.1016/j.ijbiomac.2022.12.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Elastin-like polypeptides (ELPs) are attractive materials for the green preparation of silica nanoparticles via biomimetic silicification. However, the critical factors affecting the ELP-mediated silicification remain unclear. Herein, the role of tunable amino acid residues of ELPs in silicification was studied using three ELPs (ELPs[V9F-40], ELPs[KV8F-40], and ELPs[K5V4F-40]) and their fusion proteins (ELPs[V9F-40]-SpyCatcher, ELPs[KV8F-40]-SpyCatcher, and ELPs[K5V4F-40]-SpyCatcher) with different contents of lysine residues. Bioinformatics methods were employed for the first time to reveal the key physicochemical parameters correlated with silicification. The specific activity of ELPs was increased with the promotion of lysine content with a high correlation coefficient (R = 0.899). Furthermore, exogenous acidic protein SpyCatcher would hinder the interactions between the silica precursors and ELPs, leading to the significantly decrease in specific activity. The isoelectric point (pI) of ELPs presented the highest correlation to silicification with a coefficient of 0.963. The charges of the ELPs [K5V4F-40] at different pH were calculated based on the sequence or structure. Interestingly, the excellent correlation between charges based on structure and specific activity was obtained. Collectively, the novel methods developed here may pave a new way for rational design of ELPs or other peptides for efficient and green preparation of silica nanomaterials for biomedicine, biocatalysis, and biosensor.
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Affiliation(s)
- Yue Qiu
- Faculty of Food Science and Technology, Suzhou Polytechnic Institute of Agriculture, Suzhou 215008, Jiangsu, China; Department of Bioengineering and Biotechnology, Huaqiao University, Xiamen 361021, Fujian, China
| | - Yuanqing Lin
- College of Environment and Public Health, Xiamen Huaxia University, Xiamen 361024, Fujian, China.
| | - Bo Zeng
- Department of Bioengineering and Biotechnology, Huaqiao University, Xiamen 361021, Fujian, China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Peiliang Qin
- Department of Science and Technology Industry Division, Suzhou Polytechnical Institute of Agriculture, Suzhou, Jiangsu 215008, China
| | - Zhiwei Yi
- Department of Bioengineering and Biotechnology, Huaqiao University, Xiamen 361021, Fujian, China; Technology Innovation Center for Exploitation of Marine Biological Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
| | - Guangya Zhang
- Department of Bioengineering and Biotechnology, Huaqiao University, Xiamen 361021, Fujian, China.
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21
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Tailored Functionalized Protein Nanocarriers for Cancer Therapy: Recent Developments and Prospects. Pharmaceutics 2023; 15:pharmaceutics15010168. [PMID: 36678796 PMCID: PMC9861211 DOI: 10.3390/pharmaceutics15010168] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/28/2022] [Accepted: 12/29/2022] [Indexed: 01/06/2023] Open
Abstract
Recently, the potential use of nanoparticles for the targeted delivery of therapeutic and diagnostic agents has garnered increased interest. Several nanoparticle drug delivery systems have been developed for cancer treatment. Typically, protein-based nanocarriers offer several advantages, including biodegradability and biocompatibility. Using genetic engineering or chemical conjugation approaches, well-known naturally occurring protein nanoparticles can be further prepared, engineered, and functionalized in their self-assembly to meet the demands of clinical production efficiency. Accordingly, promising protein nanoparticles have been developed with outstanding tumor-targeting capabilities, ultimately overcoming multidrug resistance issues, in vivo delivery barriers, and mimicking the tumor microenvironment. Bioinspired by natural nanoparticles, advanced computational techniques have been harnessed for the programmable design of highly homogenous protein nanoparticles, which could open new routes for the rational design of vaccines and drug formulations. The current review aims to present several significant advancements made in protein nanoparticle technology, and their use in cancer therapy. Additionally, tailored construction methods and therapeutic applications of engineered protein-based nanoparticles are discussed.
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22
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Abdelhamid MAA, Son RG, Park KS, Pack SP. Oriented multivalent silaffin-affinity immobilization of recombinant lipase on diatom surface: Reliable loading and high performance of biocatalyst. Colloids Surf B Biointerfaces 2022; 219:112830. [PMID: 36162181 DOI: 10.1016/j.colsurfb.2022.112830] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/31/2022] [Accepted: 09/03/2022] [Indexed: 10/31/2022]
Abstract
Microbial lipases are widely used biocatalysts; however, their functional surface immobilization should be designed for successful industrial applications. One of the unmet challenges is to develop a practical surface immobilization to achieve both high stability and activity of lipases upon the large loading. Herein, we present a silaffin-based multivalent design as a simple and oriented approach for Bacillus subtilis lipase A (LipA) immobilization on economic diatom biosilica matrix to yield highly-stable activity with reliable loading. Specifically, silaffin peptides Sil3H, Sil3K, and Sil3R, as monovalent or divalent genetic fusion tags, selectively immobilized LipA on biosilica surfaces. Sil3K peptide fusion to LipA termini most efficiently produced high catalytic activity upon immobilization. The activity was 70-fold greater than that of immobilized wild-type LipA. Compared to single fusion, the double Sil3K fusion displayed 1.7 higher enzymatic loading combined with high catalytic performances of LipA on biosilica surfaces. The multivalent immobilized LipA was distributed uniformly on biosilica surfaces. The biocatalyst was stable over a wide pH range with 98% retention activity after 10 reuses. The stabilized lipase fusion was compatible with laundry detergents, making it an attractive biocatalyst for detergent formulations. These findings demonstrate that multivalent surface immobilization is a plausible method for developing high-performance biocatalysts suitable for industrial biotechnological applications.
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Affiliation(s)
- Mohamed A A Abdelhamid
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea; Department of Botany and Microbiology, Faculty of Science, Minia University, Minia 61519, Egypt
| | - Ryeo Gang Son
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea
| | - Ki Sung Park
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea.
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23
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Abd El-Hafeez AA, Marzouk HMM, Abdelhamid MAA, Khalifa HO, Hasanin THA, Habib AGK, Abdelwahed FM, Barakat FM, Bastawy EM, Abdelghani EMB, Hosoi T, Ozawa K, Aref AM, Fujimura T, Ibrahim ARN, Abdelmoniem ASO, Elghazawy H, Ghosh P, Kawamoto S, Pack SP. Anti-cancer Effect of Hyoscyamus muticus Extract via Its Activation of Fas/FasL-ASK1-p38 Pathway. BIOTECHNOL BIOPROC E 2022. [DOI: 10.1007/s12257-022-0085-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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Bruno F, Gigli L, Ferraro G, Cavallo A, Michaelis VK, Goobes G, Fratini E, Ravera E. Lysozyme is Sterically Trapped Within the Silica Cage in Bioinspired Silica-Lysozyme Composites: A Multi-Technique Understanding of Elusive Protein-Material Interactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8030-8037. [PMID: 35738569 PMCID: PMC9261187 DOI: 10.1021/acs.langmuir.2c00836] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 06/08/2022] [Indexed: 06/15/2023]
Abstract
Lysozyme is widely known to promote the formation of condensed silica networks from solutions containing silicic acid, in a reproducible and cost-effective way. However, little is known about the fate of the protein after the formation of the silica particles. Also, the relative arrangement of the different components in the resulting material is a matter of debate. In this study, we investigate the nature of the protein-silica interactions by means of solid-state nuclear magnetic resonance spectroscopy, small-angle X-ray scattering, and electron microscopy. We find that lysozyme and silica are in intimate contact and strongly interacting, but their interaction is neither covalent nor electrostatic: lysozyme is mostly trapped inside the silica by steric effects.
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Affiliation(s)
- Francesco Bruno
- Magnetic
Resonance Center (CERM), University of Florence, via L. Sacconi 6, Sesto Fiorentino 50019, Italy
- Department
of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 3, Sesto Fiorentino 50019, Italy
| | - Lucia Gigli
- Magnetic
Resonance Center (CERM), University of Florence, via L. Sacconi 6, Sesto Fiorentino 50019, Italy
- Department
of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 3, Sesto Fiorentino 50019, Italy
| | - Giovanni Ferraro
- Department
of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 3, Sesto Fiorentino 50019, Italy
- Consorzio
per lo Sviluppo dei Sistemi a Grande Interfase (CSGI), via della Lastruccia, 3, Sesto Fiorentino 50019, Italy
| | - Andrea Cavallo
- CERTEMA
S.c.a.r.l., S.P. Del
Cipressino Km 10, Cinigiano 58044, Italy
| | | | - Gil Goobes
- Department
of Chemistry, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Emiliano Fratini
- Department
of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 3, Sesto Fiorentino 50019, Italy
- Consorzio
per lo Sviluppo dei Sistemi a Grande Interfase (CSGI), via della Lastruccia, 3, Sesto Fiorentino 50019, Italy
| | - Enrico Ravera
- Magnetic
Resonance Center (CERM), University of Florence, via L. Sacconi 6, Sesto Fiorentino 50019, Italy
- Department
of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 3, Sesto Fiorentino 50019, Italy
- Consorzio
Interuniversitario Risonanze Magnetiche di Metalloproteine (CIRMMP), via L. Sacconi 6, Sesto Fiorentino 50019, Italy
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25
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Elias J, Angelini T, Martindale MQ, Gower L. Assessment of Optimal Conditions for Marine Invertebrate Cell-Mediated Mineralization of Organic Matrices. Biomimetics (Basel) 2022; 7:biomimetics7030086. [PMID: 35892356 PMCID: PMC9326593 DOI: 10.3390/biomimetics7030086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 06/24/2022] [Accepted: 06/24/2022] [Indexed: 11/24/2022] Open
Abstract
Cellular strategies and regulation of their crystallization mechanisms are essential to the formation of biominerals, and harnessing these strategies will be important for the future creation of novel non-native biominerals that recapitulate the impressive properties biominerals possess. Harnessing these biosynthetic strategies requires an understanding of the interplay between insoluble organic matrices, mineral precursors, and soluble organic and inorganic additives. Our long-range goal is to use a sea anemone model system (Nematostella vectensis) to examine the role of intrinsically disordered proteins (IDPs) found in native biomineral systems. Here, we study how ambient temperatures (25–37 °C) and seawater solution compositions (varying NaCl and Mg ratios) will affect the infiltration of organic matrices with calcium carbonate mineral precursors generated through a polymer-induced liquid-precursor (PILP) process. Fibrillar collagen matrices were used to assess whether solution conditions were suitable for intrafibrillar mineralization, and SEM with EDS was used to analyze mineral infiltration. Conditions of temperatures 30 °C and above and with low Mg:Ca ratios were determined to be suitable conditions for calcium carbonate infiltration. The information obtained from these observations may be useful for the manipulation and study of cellular secreted IDPs in our quest to create novel biosynthetic materials.
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Affiliation(s)
- Jeremy Elias
- Department of Materials Science & Engineering, University of Florida, Gainesville, FL 32611, USA;
| | - Thomas Angelini
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32611, USA;
| | - Mark Q. Martindale
- Whitney Laboratory of Marine Bioscience, University of Florida, St. Augustine, FL 32080, USA;
| | - Laurie Gower
- Department of Materials Science & Engineering, University of Florida, Gainesville, FL 32611, USA;
- Correspondence:
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Microalgae-Based PUFAs for Food and Feed: Current Applications, Future Possibilities, and Constraints. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2022. [DOI: 10.3390/jmse10070844] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Microalgae are currently considered an attractive source of highly valuable compounds for human and animal consumption, including polyunsaturated fatty acids (PUFAs). Several microalgae-derived compounds, such as ω-3 fatty acids, pigments, and whole dried biomasses are available on the market and are mainly produced by culturing microalgae in open ponds, which can be achieved with low setup and maintenance costs with respect to enclosed systems. However, open tanks are more susceptible to bacterial and other environmental contamination, do not guarantee a high reproducibility of algal biochemical profiles and productivities, and constrain massive cultivation to a limited number of species. Genetic engineering techniques have substantially improved over the last decade, and several model microalgae have been successfully modified to promote the accumulation of specific value-added compounds. However, transgenic strains should be cultured in closed photobioreactors (PBRs) to minimize risks of contamination of aquatic environments with allochthonous species; in addition, faster growth rates and higher yields of compounds of interest can be achieved in PBRs compared to open ponds. In this review, we present information collected about the major microalgae-derived commodities (with a special focus on PUFAs) produced at industrial scale, as well genetically-engineered microalgae to increase PUFA production. We also critically analyzed the main bottlenecks that make large-scale production of algal commodities difficult, as well as possible solutions to overcome the main problems and render the processes economically and environmentally safe.
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Investigating the Morphology and Mechanics of Biogenic Hierarchical Materials at and below Micrometer Scale. NANOMATERIALS 2022; 12:nano12091549. [PMID: 35564259 PMCID: PMC9102398 DOI: 10.3390/nano12091549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/26/2022] [Accepted: 04/30/2022] [Indexed: 12/10/2022]
Abstract
Investigating and understanding the intrinsic material properties of biogenic materials, which have evolved over millions of years into admirable structures with difficult to mimic hierarchical levels, holds the potential of replacing trial-and-error-based materials optimization in our efforts to make synthetic materials of similarly advanced complexity and properties. An excellent example is biogenic silica which is found in the exoskeleton of unicellular photosynthetic algae termed diatoms. Because of the complex micro- and nanostructures found in their exoskeleton, determining the intrinsic mechanical properties of biosilica in diatoms has only partly been accomplished. Here, a general method is presented in which a combination of in situ deformation tests inside an SEM with a realistic 3D model of the frustule of diatom Craspedostauros sp. (C. sp.) obtained by electron tomography, alongside finite element method (FEM) simulations, enables quantification of the Young’s modulus (E = 2.3 ± 0.1 GPa) of this biogenic hierarchical silica. The workflow presented can be readily extended to other diatom species, biominerals, or even synthetic hierarchical materials.
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Molecularly Imprinted Polymer-Amyloid Fibril-Based Electrochemical Biosensor for Ultrasensitive Detection of Tryptophan. BIOSENSORS 2022; 12:bios12050291. [PMID: 35624592 PMCID: PMC9139163 DOI: 10.3390/bios12050291] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 04/25/2022] [Accepted: 04/29/2022] [Indexed: 12/03/2022]
Abstract
A tryptophan (Trp) sensor was investigated based on electrochemical impedance spectroscopy (EIS) of a molecularly imprinted polymer on a lysozyme amyloid fibril (MIP-AF). The MIP-AF was composed of aniline as a monomer chemically polymerized in the presence of a Trp template molecule onto the AF surface. After extracting the template molecule, the MIP-AF had cavities with a high affinity for the Trp molecules. The obtained MIP-AF demonstrated rapid Trp adsorption and substantial binding capacity (50 µM mg−1). Trp determination was studied using non-Faradaic EIS by drop drying the MIP-AF on the working electrode of a screen-printed electrode. The MIP-AF provided a large linear range (10 pM–80 µM), a low detection limit (8 pM), and high selectivity for Trp determination. Furthermore, the proposed method also indicates that the MIP-AF can be used to determine Trp in real samples such as milk and cancer cell media.
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Joshi J, Homburg SV, Ehrmann A. Atomic Force Microscopy (AFM) on Biopolymers and Hydrogels for Biotechnological Applications-Possibilities and Limits. Polymers (Basel) 2022; 14:1267. [PMID: 35335597 PMCID: PMC8949482 DOI: 10.3390/polym14061267] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/15/2022] [Accepted: 03/19/2022] [Indexed: 02/01/2023] Open
Abstract
Atomic force microscopy (AFM) is one of the microscopic techniques with the highest lateral resolution. It can usually be applied in air or even in liquids, enabling the investigation of a broader range of samples than scanning electron microscopy (SEM), which is mostly performed in vacuum. Since it works by following the sample surface based on the force between the scanning tip and the sample, interactions have to be taken into account, making the AFM of irregular samples complicated, but on the other hand it allows measurements of more physical parameters than pure topography. This is especially important for biopolymers and hydrogels used in tissue engineering and other biotechnological applications, where elastic properties, surface charges and other parameters influence mammalian cell adhesion and growth as well as many other effects. This review gives an overview of AFM modes relevant for the investigations of biopolymers and hydrogels and shows several examples of recent applications, focusing on the polysaccharides chitosan, alginate, carrageenan and different hydrogels, but depicting also a broader spectrum of materials on which different AFM measurements are reported in the literature.
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Affiliation(s)
- Jnanada Joshi
- Faculty of Engineering and Mathematics, Bielefeld University of Applied Sciences, 33619 Bielefeld, Germany
| | - Sarah Vanessa Homburg
- Faculty of Engineering and Mathematics, Bielefeld University of Applied Sciences, 33619 Bielefeld, Germany
| | - Andrea Ehrmann
- Faculty of Engineering and Mathematics, Bielefeld University of Applied Sciences, 33619 Bielefeld, Germany
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Ki MR, Kim SH, Nguyen TKM, Son RG, Jun SH, Pack SP. BMP2-Mediated Silica Deposition: An Effective Strategy for Bone Mineralization. ACS Biomater Sci Eng 2022; 9:1823-1833. [PMID: 35090106 DOI: 10.1021/acsbiomaterials.1c01095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The combined use of an osteogenic factor, such as bone morphogenetic protein 2 (BMP2), with a bone scaffold was quite functional for the reconstruction of bone defects. Although many studies using BMP2 have been done, there is still a need to develop an efficient way to apply BMP2 in the bone scaffold. Here, we reported an interesting fact that BMP2 has a silica deposition ability in the presence of silicic acid and proposed that such an ability of BMP2 can effectively immobilize and transport itself by a kind of coprecipitation of BMP2 with a silica matrix. The presence of BMP2 in the resulting silica was proved by SEM and EDS and was visualized by FITC-labeled BMP2. The delivery efficacy of BMP2 of silica-entrapped BMP2 on osteoblast differentiation and mineralization using MC3T3 E1 preosteoblast cells was evaluated in vitro. The coprecipitated BMP2 with silica exhibited osteogenesis at a low concentration that was insufficient to give an osteoinductive signal as the free form. Expectedly, the silica-entrapped BMP2 exhibited thermal stability over free BMP2. When applied to bone graft substitution, e.g., hydroxyapatite granules (HA), silica-entrapped BMP 2 laden HA (BMP2@Si/HA) showed sustained BMP2 release, whereas free BMP2 adsorbed HA by a simple dipping method (BMP2/HA) displayed a burst release of BMP2 at an initial time. In the rat critical-size calvarial defect model, BMP2@Si/HA showed better bone regeneration than BMP2/HA by about 10%. The BMP2/silica hybrid deposited on a carrier surface via BMP2-mediated silica precipitation demonstrated an increase in the loading efficiency, a decrease in the burst release of BMP2, and an increase in bone regeneration. Taken together, the coprecipitated BMP2 with a silica matrix has the advantages of not only being able to immobilize BMP2 efficiently without compromising its function but also serving as a stable carrier for BMP2 delivery.
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Affiliation(s)
- Mi-Ran Ki
- Department of Biotechnology and Bioinformatics, Korea University, 2511 Sejong-ro, Sejong 30019, Korea.,Institution of Industrial Technology, Korea University, 2511 Sejong-ro, Sejong 30019, Korea
| | - Sung Ho Kim
- Department of Biotechnology and Bioinformatics, Korea University, 2511 Sejong-ro, Sejong 30019, Korea
| | - Thi Khoa My Nguyen
- Department of Biotechnology and Bioinformatics, Korea University, 2511 Sejong-ro, Sejong 30019, Korea
| | - Ryeo Gang Son
- Department of Biotechnology and Bioinformatics, Korea University, 2511 Sejong-ro, Sejong 30019, Korea
| | - Sang Ho Jun
- Departmtnt of Oral and Maxillofacial Surgery, Korea University Anam Hospital, 73 Goryeodae-ro, Seoul 02841, Korea
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, 2511 Sejong-ro, Sejong 30019, Korea
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Directional Growth of cm-Long PLGA Nanofibers by a Simple and Fast Wet-Processing Method. MATERIALS 2022; 15:ma15020687. [PMID: 35057400 PMCID: PMC8777905 DOI: 10.3390/ma15020687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 12/23/2021] [Accepted: 12/28/2021] [Indexed: 01/25/2023]
Abstract
The development of aligned nanofibers as useful scaffolds for tissue engineering is an actively sought-for research objective. Here, we propose a novel improvement of an existing self-assembly-based nanofabrication technique (ASB-SANS). This improvement, which we termed Directional ASB-SANS, allows one to produce cm2-large domains of highly aligned poly(lactic-co-glycolic acid) (PLGA) nanofibers in a rapid, inexpensive, and easy way. The so-grown aligned PLGA nanofibers exhibited remarkable adhesion to different substrates (glass, polyimide, and Si/SiOx), even when immersed in PBS solution and kept at physiological temperature (37 °C) for up to two weeks. Finally, the Directional ASB-SANS technique allowed us to grow PLGA fibers also on highly heterogeneous substrates such as polyimide-based, gold-coated flexible electrodes. These results suggest the viability of Directional ASB-SANS method for realizing biocompatible/bioresorbable, nanostructured coatings, potentially suitable for neural interface systems.
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Cheon EJ, Kim SH, Lee DK, Jo YK, Ki MR, Park CJ, Jang HS, Ahn JS, Pack SP, Jun SH. Osteostimulating Ability of β-tricalcium Phosphate/collagen Composite as a Practical Bone-grafting Substitute: In vitro and in vivo Comparison Study with Commercial One. BIOTECHNOL BIOPROC E 2021. [DOI: 10.1007/s12257-021-0059-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Sun X, Yu X, Cheng F, He W. Cationic polymeric template-mediated preparation of silica nanocomposites. SOFT MATTER 2021; 17:8995-9007. [PMID: 34611687 DOI: 10.1039/d1sm00773d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Biosilicification allows the formation of complex and delicate biogenic silica in near-neutral solutions under ambient conditions. Studies have revealed that, during biosilicification, basic amino acid residues and long-chain polyamines of organic substrates interact electrostatically with negatively charged silicate precursors in solution, catalyzing the polycondensation of silicic acid and accelerating the formation of silica. This mechanism has inspired researchers to explore polymers bearing chemical similarity with these organic matrices as cationic templates for biomimetic silicification. Such templates can be classified into two general categories based on the physical forms applied. One is a solution of water-soluble cationic polymers, either natural or synthetic, used as is for silicification. The other category includes various microscopically shaped entities made of cationic polymer-containing molecules, in the form of micelles, vesicles, crystalline aggregates, latex particles, and microgels. Combined with controlled polymerization and other techniques, these preorganized templates can be tailor designed in terms of sizes and morphologies to allow further expansion of properties and functions. In this review, notable research progress for both categories of silicification under biomimetic conditions is discussed. With the merits of silica and cationic polymers seamlessly integrated, the potential of such versatile nanocomposites in biomedical as well as energy and environmental applications is also briefly highlighted.
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Affiliation(s)
- Xiaoning Sun
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning, 116023, China.
- School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, 116023, China
| | - Xueying Yu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning, 116023, China.
- School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, 116023, China
| | - Fang Cheng
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning, 116023, China.
- School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, 116023, China
| | - Wei He
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning, 116023, China.
- School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, 116023, China
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Bialas F, Reichinger D, Becker CF. Biomimetic and biopolymer-based enzyme encapsulation. Enzyme Microb Technol 2021; 150:109864. [DOI: 10.1016/j.enzmictec.2021.109864] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 06/02/2021] [Accepted: 06/29/2021] [Indexed: 12/25/2022]
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Wang Y, Li B, Li Y, Chen X. Research progress on enhancing the performance of autotrophic nitrogen removal systems using microbial immobilization technology. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 774:145136. [PMID: 33609842 DOI: 10.1016/j.scitotenv.2021.145136] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 01/05/2021] [Accepted: 01/08/2021] [Indexed: 06/12/2023]
Abstract
The autotrophic nitrogen removal process has great potential to be applied to the biological removal of nitrogen from wastewater, but its application is hindered by its unstable operation under adverse environmental conditions, such as those presented by low temperatures, high organic matter concentrations, or the presence of toxic substances. Granules and microbial entrapment technology can effectively retain and enrich microbial assemblages in reactors to improve operating efficiency and reactor stability. The carriers can also protect the reactor's internal microorganisms from interference from the external environment. This article critically reviews the existing literature on autotrophic nitrogen removal systems using immobilization technology. We focus our discussion on the natural aggregation process (granulation) and entrapment technology. The selection of carrier materials and entrapment methods are identified and described in detail and the mechanisms through which entrapment technology protects microorganisms are analyzed. This review will provide a better understanding of the mechanisms through which immobilization operates and the prospects for immobilization technology to be applied in autotrophic nitrogen removal systems.
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Affiliation(s)
- Yue Wang
- School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Bolin Li
- School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China.
| | - Ye Li
- School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Xiaoguo Chen
- School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China
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36
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Can sustainable, monodisperse, spherical silica be produced from biomolecules? A review. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-01869-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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37
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Mini-Review: Potential of Diatom-Derived Silica for Biomedical Applications. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11104533] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Diatoms are unicellular eukaryotic microalgae widely distributed in aquatic environments, possessing a porous silica cell wall known as frustule. Diatom frustules are considered as a sustainable source for several industrial applications because of their high biocompatibility and the easiness of surface functionalisation, which make frustules suitable for regenerative medicine and as drug carriers. Frustules are made of hydrated silica, and can be extracted and purified both from living and fossil diatoms using acid treatments or high temperatures. Biosilica frustules have proved to be suitable for biomedical applications, but, unfortunately, they are not officially recognised as safe by governmental food and medical agencies yet. In the present review, we highlight the frustule formation process, the most common purification techniques, as well as advantages and bottlenecks related to the employment of diatom-derived silica for medical purposes, suggesting possible solutions for a large-scale biosilica production.
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Sala RL, Venâncio T, Camargo ER. Probing the Structural Dynamics of the Coil-Globule Transition of Thermosensitive Nanocomposite Hydrogels. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:1531-1541. [PMID: 33481601 DOI: 10.1021/acs.langmuir.0c03079] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Nanocomposite hydrogels have emerged to exhibit multipurpose properties, boosting especially the biomaterial field. However, the development and characterization of these materials can be a challenge, especially stimuli-sensitive materials with dynamic properties in response to external stimuli. By employing UV-vis spectroscopy and NMR relaxation techniques, we could outline the formation and behavior of thermosensitive nanocomposites obtained by in situ polymerization of poly(N-vinylcaprolactam) (PNVCL) and mesoporous silica nanofibers under temperature stimuli. For instance, inorganic nanoparticles covalently linked to PNVCL changed the pattern of temperature-induced phase transition despite showing similar critical temperatures to neat PNVCL. Thermodynamic parameters indicated the formation of an interconnected system of silica and polymer chains with reduced enthalpic contribution and mobility. The investigation of water molecule and polymer segment motions also revealed that the absorption and release of water happened in a wider temperature range for the nanocomposites, and the polymer segments respond in different ways during the phase transition in the presence of silica. This set of techniques was essential to reveal the polymer motions and structural features in nanocomposite hydrogels under temperature stimuli, demonstrating its potential use as experimental guideline to study multicomponent nanocomposites with diverse functionalities and dynamic properties.
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Affiliation(s)
- Renata L Sala
- Department of Chemistry, Federal University of São Carlos (UFSCar), Rod. Washington Luis km 235, São Carlos, SP 13565-905, Brazil
| | - Tiago Venâncio
- Department of Chemistry, Federal University of São Carlos (UFSCar), Rod. Washington Luis km 235, São Carlos, SP 13565-905, Brazil
| | - Emerson R Camargo
- Department of Chemistry, Federal University of São Carlos (UFSCar), Rod. Washington Luis km 235, São Carlos, SP 13565-905, Brazil
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40
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Magana JR, Gumí‐Audenis B, Tas RP, Gascoigne L, Atkins DL, Voets IK. Bioinspired Scaffolding by Supramolecular Amines Allows the Formation of One- and Two-Dimensional Silica Superstructures. Chemistry 2020; 26:15330-15336. [PMID: 32783243 PMCID: PMC7756888 DOI: 10.1002/chem.202003139] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/27/2020] [Indexed: 12/11/2022]
Abstract
Silica materials attract an increasing amount of interest in (fundamental) research, and find applications in, for example, sensing, catalysis, and drug delivery. As the properties of these (nano)materials not only depend on their chemistry but also their size, shape, and surface area, the controllable synthesis of silica is essential for tailoring the materials to specific applications. Advantageously, bioinspired routes for silica production are environmentally friendly and straightforward since the formation process is spontaneous and proceeds under mild conditions. These strategies mostly employ amine-bearing phosphorylated (bio)polymers. In this work, we expand this principle to supramolecular polymers based on the water-soluble cationic cyanine dye Pinacyanol acetate. Upon assembly in water, these dye molecules form large, polyaminated, supramolecular fibers. The surfaces of these fibers can be used as a scaffold for the condensation of silicic acid. Control over the ionic strength, dye concentration, and silicic acid saturation yielded silica fibers with a diameter of 25 nm and a single, 4 nm pore. Unexpectedly, other unusual superstructures, namely, nummulites and spherulites, are also observed depending on the ionic strength and dye concentration. Transmission and scanning electron microscopy (TEM and SEM) showed that these superstructures are formed by aligned silica fibers. Close examination of the dye scaffold prior silicification using small-angle X-ray scattering (SAXS), and UV/Vis spectroscopy revealed minor influence of the ionic strength and dye concentration on the morphology of the supramolecular scaffold. Total internal reflection fluorescence (TIRF) during silicification unraveled that if the reaction is kept under static conditions, only silica fibers are obtained. Experiments performed on the dye scaffold and silica superstructures evidenced that the marked structural diversity originates from the arrangement of silica/dye fibers. Under these mild conditions, external force fields can profoundly influence the morphology of the produced silica.
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Affiliation(s)
- Jose R. Magana
- Laboratory of Self-Organizing Soft MatterLaboratory of Macromolecular and Organic Chemistry, andInstitute for Complex Molecular SystemsEindhoven University of Technology5600MBEindhovenThe Netherlands
| | - Berta Gumí‐Audenis
- Laboratory of Self-Organizing Soft MatterLaboratory of Macromolecular and Organic Chemistry, andInstitute for Complex Molecular SystemsEindhoven University of Technology5600MBEindhovenThe Netherlands
| | - Roderick P. Tas
- Laboratory of Self-Organizing Soft MatterLaboratory of Macromolecular and Organic Chemistry, andInstitute for Complex Molecular SystemsEindhoven University of Technology5600MBEindhovenThe Netherlands
| | - Levena Gascoigne
- Laboratory of Self-Organizing Soft MatterLaboratory of Macromolecular and Organic Chemistry, andInstitute for Complex Molecular SystemsEindhoven University of Technology5600MBEindhovenThe Netherlands
| | - Dylan L. Atkins
- Laboratory of Self-Organizing Soft MatterLaboratory of Macromolecular and Organic Chemistry, andInstitute for Complex Molecular SystemsEindhoven University of Technology5600MBEindhovenThe Netherlands
| | - Ilja K. Voets
- Laboratory of Self-Organizing Soft MatterLaboratory of Macromolecular and Organic Chemistry, andInstitute for Complex Molecular SystemsEindhoven University of Technology5600MBEindhovenThe Netherlands
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