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Che H, Tian X, Nie Y, Li Y, Lu L, Hu Y. Multi-targets detection via combination of multi-stimulus-response engineered bacteria and hydrogel-based separation platform. JOURNAL OF HAZARDOUS MATERIALS 2024; 478:135578. [PMID: 39173378 DOI: 10.1016/j.jhazmat.2024.135578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Revised: 08/12/2024] [Accepted: 08/17/2024] [Indexed: 08/24/2024]
Abstract
Establishing a method similar to ICP-MS that can quantitatively analyze multiple heavy metals simultaneously, conveniently, and in situ is highly anticipated. In this study, we integrated the sensing elements of multiple targets and different fluorescence reporting elements to construct an engineered Escherichia coli. When these targets are present, the engineered bacteria can emit a fluorescent signal at the corresponding wavelength. To avoid the inability to accurately distinguish and quantify the content of each target due to the overlap of fluorescence signals when multiple targets coexist, a hydrogel-based separation platform similar to a separation column was constructed. The hydrogel platform can change the detection limit (LOD) and sensitivity by adjusting the adsorption strength towards different targets, so as to realize the differentiation and recognition of their respective detection signals. The LODs of this new detection method for Cd(II), Hg(II), As(III), and Pb(II) are 1.249, 0.380, 3.917, and 0.755 μg/L, respectively. In addition, this biosensor system was applied to detect coexisting Cd(II), Hg(II), As(III), and Pb(II) in actual samples with a recovery rate of 85.61-110.30 %, which is consistent with the classical ICP-MS detection results, confirming the accuracy and reliability of the method for detecting multiple heavy metal coexisting samples.
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Affiliation(s)
- Huachao Che
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Xike Tian
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Yulun Nie
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Yong Li
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Liqiang Lu
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Yuguang Hu
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Advanced Studies, Chinese Academy of Sciences, Shanghai 201800, China
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2
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Whitewolf J, Highley CB. Conformal encapsulation of mammalian stem cells using modified hyaluronic acid. J Mater Chem B 2024; 12:7122-7134. [PMID: 38946474 PMCID: PMC11268093 DOI: 10.1039/d4tb00223g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 06/05/2024] [Indexed: 07/02/2024]
Abstract
Micro- and nanoencapsulation of cells has been studied as a strategy to protect cells from environmental stress and promote survival during delivery. Hydrogels used in encapsulation can be modified to influence cell behaviors and direct assembly in their surroundings. Here, we report a system that conformally encapsulated stem cells using hyaluronic acid (HA). We successfully modified HA with lipid, thiol, and maleimide pendant groups to facilitate a hydrogel system in which HA was deposited onto cell plasma membranes and subsequently crosslinked through thiol-maleimide click chemistry. We demonstrated conformal encapsulation of both neural stem cells (NSCs) and mesenchymal stromal cells (MSCs), with viability of both cell types greater than 90% after encapsulation. Additional material could be added to the conformal hydrogel through alternating addition of thiol-modified and maleimide-modified HA in a layering process. After encapsulation, we tracked egress and viability of the cells over days and observed differential responses of cell types to conformal hydrogels both according to cell type and the amount of material deposited on the cell surfaces. Through the design of the conformal hydrogels, we showed that multicellular assembly could be created in suspension and that encapsulated cells could be immobilized on surfaces. In conjunction with photolithography, conformal hydrogels enabled rapid assembly of encapsulated cells on hydrogel substrates with resolution at the scale of 100 μm.
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Affiliation(s)
- Jack Whitewolf
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22903, USA.
| | - Christopher B Highley
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22903, USA.
- Department of Chemical Engineering, University of Virginia, Charlottesville, VA 22903, USA
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3
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Che H, Wang Z, Li Y, Nie Y, Tian X. A Stable and Sensitive Engineering Bacterial Sensor via Physical Biocontainment and Two-Stage Signal Amplification. Anal Chem 2024; 96:8807-8813. [PMID: 38714342 DOI: 10.1021/acs.analchem.4c01341] [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: 05/09/2024]
Abstract
Although engineering bacterial sensors have outstanding advantages in reflecting the actual bioavailability and continuous monitoring of pollutants, the potential escape risk of engineering microorganisms and lower detection sensitivity have always been one of the biggest challenges limiting their wider application. In this study, a core-shell hydrogel bead with functionalized silica as the core and alginate-polyacrylamide as the shell have been developed not only to realize zero escape of engineered bacteria but also to maintain cell activity in harsh environments, such as extremely acidic/alkaline pH, high salt concentration, and strong pressure. Particularly, after combining the selective preconcentration toward pollutants by functionalized core and the positive feedback signal amplification of engineering bacteria, biosensors have realized two-stage signal amplification, significantly improving the detection sensitivity and reducing the detection limit. In addition, this strategy was actually applied to the detection of As(III) and As(V) coexisting in environmental samples, and the detection sensitivity was increased by 3.23 and 4.39 times compared to sensors without signal amplification strategy, respectively, and the detection limits were as low as 0.39 and 0.86 ppb, respectively.
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Affiliation(s)
- Huachao Che
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Zhiyue Wang
- Civil and Environmental Engineering, University of Hawai'i, Honolulu Hawai'i 96822, United States
- Water Resources Research Center, University of Hawai'i, Honolulu, Hawai'i 96822, United States
| | - Yong Li
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Yulun Nie
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Xike Tian
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
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4
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Han J, McClements DJ, Liu X, Liu F. Oral delivery of probiotics using single-cell encapsulation. Compr Rev Food Sci Food Saf 2024; 23:e13322. [PMID: 38597567 DOI: 10.1111/1541-4337.13322] [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: 10/16/2023] [Revised: 02/01/2024] [Accepted: 02/28/2024] [Indexed: 04/11/2024]
Abstract
Adequate intake of live probiotics is beneficial to human health and wellbeing because they can help treat or prevent a variety of health conditions. However, the viability of probiotics is reduced by the harsh environments they experience during passage through the human gastrointestinal tract (GIT). Consequently, the oral delivery of viable probiotics is a significant challenge. Probiotic encapsulation provides a potential solution to this problem. However, the production methods used to create conventional encapsulation technologies often damage probiotics. Moreover, the delivery systems produced often do not have the required physicochemical attributes or robustness for food applications. Single-cell encapsulation is based on forming a protective coating around a single probiotic cell. These coatings may be biofilms or biopolymer layers designed to protect the probiotic from the harsh gastrointestinal environment, enhance their colonization, and introduce additional beneficial functions. This article reviews the factors affecting the oral delivery of probiotics, analyses the shortcomings of existing encapsulation technologies, and highlights the potential advantages of single-cell encapsulation. It also reviews the various approaches available for single-cell encapsulation of probiotics, including their implementation and the characteristics of the delivery systems they produce. In addition, the mechanisms by which single-cell encapsulation can improve the oral bioavailability and health benefits of probiotics are described. Moreover, the benefits, limitations, and safety issues of probiotic single-cell encapsulation technology for applications in food and beverages are analyzed. Finally, future directions and potential challenges to the widespread adoption of single-cell encapsulation of probiotics are highlighted.
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Affiliation(s)
- Jiaqi Han
- College of Food Science and Engineering, Northwest A&F University, Xianyang, Shaanxi, China
| | - David Julian McClements
- Department of Food Science, University of Massachusetts Amherst, Amherst, Massachusetts, USA
| | - Xuebo Liu
- College of Food Science and Engineering, Northwest A&F University, Xianyang, Shaanxi, China
| | - Fuguo Liu
- College of Food Science and Engineering, Northwest A&F University, Xianyang, Shaanxi, China
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5
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Tong G, Qian H, Li D, Li J, Chen J, Li X, Tan Z. Intestinal Flora Imbalance Induced by Antibiotic Use in Rats. J Inflamm Res 2024; 17:1789-1804. [PMID: 38528993 PMCID: PMC10961240 DOI: 10.2147/jir.s447098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 03/14/2024] [Indexed: 03/27/2024] Open
Abstract
Aim This study aims to explore the effect of different doses of antibiotics on rats in order to observe alterations in their fecal microbiota, inflammatory changes in the colonic mucosa and four types of inflammatory markers in blood serum. Methods Our methodology involved separating 84 female Sprague Dawley rats into groups A-G, with each group consisting of 12 rats. We collected the rat feces for analysis, using a distinct medium for bacterial cultivation and counting colonies under a microscope. On the 11th and 15th days of the experiment, half of the rats from each group were euthanized and 5 mL of abdominal aortic blood and colon tissues were collected. Inflammations changes of colon were observed and assessed by pathological Hematoxylin Eosin (HE) staining. Enzyme-linked immune sorbent assay (ELISA) was adopted for detecting C-reactive protein (CRP), IL-6, IL1-β and TNF-α. Results Our findings revealed that the initial average weight of the rats did not differ between groups (p>0.05); but significant differences were observed between stool samples, water intake, food intake and weight (p=0.009, <0.001, 0.016 and 0.04, respectively) within two hours after the experiment. Additionally, there were notable differences among the groups in nine tested microbiota before and after weighting methods (all p<0.001). There were no difference in nine microbiota at day 1 (all p>0.05); at day 4 A/B (p=0.044), A/D (p<0.001), A/E (p=0.029); at day 8, all p<0.01, at day 11, only A/F exist significant difference (p<0.001); at day 14 only A/D has difference (p=0.045). Inflammation changes of colon were observed between groups A-G at days 11 and 15. Significant differences between all groups can be observed for CRP, IL-6, IL1-β and TNF-α (p<0.001). Conclusion This study suggests that antibiotics administration can disrupt the balance of bacteria in the rat gut ecosystem, resulting in an inflammatory response in their bloodstream and inducing inflammation changes of colon.
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Affiliation(s)
- Guojun Tong
- General Surgery, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, People’s Republic of China
- Central Laboratory, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, People’s Republic of China
| | - Hai Qian
- General Surgery, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, People’s Republic of China
| | - Dongli Li
- Central Laboratory, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, People’s Republic of China
| | - Jing Li
- Central Laboratory, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, People’s Republic of China
| | - Jing Chen
- Central Laboratory, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, People’s Republic of China
| | - Xiongfeng Li
- Orthopedic Surgery, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, People’s Republic of China
| | - Zhenhua Tan
- General Surgery, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, People’s Republic of China
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6
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Baskoro GA, Christstardy YY, Roh JH, Kim BJ. Degradation of Various Organic Coatings via UV-Generated Sulfate Radicals. Chem Asian J 2024:e202301074. [PMID: 38243777 DOI: 10.1002/asia.202301074] [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: 11/30/2023] [Revised: 01/13/2024] [Accepted: 01/20/2024] [Indexed: 01/21/2024]
Abstract
Degradation of organic coatings is essential for recycling valuable substrates. Despite the development of strategies for this purpose, the resulting degradations are typically constrained by the composition of the coating. This paper presents a simple strategy utilizing radicals induced by UV for the degradation of diverse organic coatings. The sulfate radicals, generated from UV-exposed ammonium persulfates, induce the degradation of various organic coatings, including layer-by-layer assembled coating composed of alginate and chitosan polymers as well as polydopamine coating. This strategy also facilitates the separation of two adhered substrates by degrading the adhesive polymer layer positioned between them. This novel approach enables the complete degradation of various organic coatings in aqueous conditions without imposing restrictions on their composition, leading to the recovery of the original surface properties of the substrate.
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Affiliation(s)
| | | | - Jihun H Roh
- Department of Chemistry, University of Ulsan, 44776, Ulsan, Republic of Korea
| | - Beom Jin Kim
- Department of Chemistry, University of Ulsan, 44776, Ulsan, Republic of Korea
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7
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Jeong Y, Irudayaraj J. Hierarchical encapsulation of bacteria in functional hydrogel beads for inter- and intra- species communication. Acta Biomater 2023; 158:203-215. [PMID: 36632875 DOI: 10.1016/j.actbio.2023.01.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 12/17/2022] [Accepted: 01/03/2023] [Indexed: 01/11/2023]
Abstract
To sequester prokaryotic cells in a biofilm-like niche, the creation of a pertinent and reliable microenvironment that reflects the heterogeneous nature of biological systems is vital for sustenance. Design of a microenvironment that is conducive for growth and survival of organisms, should account for factors such as mass transport, porosity, stability, elasticity, size, functionality, and biochemical characteristics of the organisms in the confined architecture. In this work we present an artificial long-term confinement model fabricated by natural alginate hydrogels that are structurally stable and can host organisms for over 10 days in physiologically relevant conditions. A unique feature of the confinement platform is the development of stratified habitats wherein bacterial cells can be entrapped in the core as well as in the shell layers, wherein the thickness and the number of shell layers are tunable at fabrication. We show that the hydrogel microenvironment in the beads can host complex subpopulations of organisms similar to that in a biofilm. Dynamic interaction of bacterial colonies encapsulated in different beads or within the core and stratified layers of single beads was demonstrated to show intra- species communication. Inter- species communication between probiotic bacteria and human colorectal carcinoma cells was also demonstrated to highlight a possible bidirectional communication between the organisms in the beads and the environment. STATEMENT OF SIGNIFICANCE: Bacteria confinement in a natural soft hydrogel structure has always been a challenge due to the collapse of hydrogel architectures. Alternative methods have been attempted to encapsulate microorganisms by employing various processes to avoid/minimize rupturing of hydrogel structures. However, most of the past approaches have been unfavorable in balancing cell proliferation and functionality upon confinement. Our study addresses the fundamental gap in knowledge necessary to create favorable and complex 3D biofilm mimics utilizing natural hydrogel for microbial colonization for long-term studies. Our approach represents a cornerstone in the development of 3D functional architectures not only to advance studies in microbial communication, host-microbe interaction but also to address basic and fundamental questions in biology.
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Affiliation(s)
- Yoon Jeong
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Biomedical Research Center, Mills Breast Cancer Institute, Carle Foundation Hospital, Urbana, IL, USA
| | - Joseph Irudayaraj
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Carle R. Woese Institute for Genomic Biology, Beckman Institute, Holonyak Micro and Nanotechnology Laboratory, Urbana, IL, USA; Biomedical Research Center, Mills Breast Cancer Institute, Carle Foundation Hospital, Urbana, IL, USA.
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8
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Jeong Y, Kong W, Lu T, Irudayaraj J. Soft hydrogel-shell confinement systems as bacteria-based bioactuators and biosensors. Biosens Bioelectron 2023; 219:114809. [PMID: 36274428 DOI: 10.1016/j.bios.2022.114809] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/25/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022]
Abstract
Genetically engineered (GE) bacteria were utilized for developing functional systems upon confinement within a restricted space. Use of natural soft hydrogel such as alginate, gelatin, and agarose, have been investigated as promising approaches to design functional architectures. Nevertheless, a challenge is to develop functional microenvironments that support biofilm-like confinement in a relevant three-dimensional (3D) format for long-term studies. We demonstrate a natural soft hydrogel bioactuator based on alginate core-shell structures (0.25-2 mm core and 50-300 μm shell thickness) that enables 3D microbial colonization upon confinement with high cell density. Specially, our study evaluates the efficiency of bacteria-functional system by recapitulating various GE bacteria which can produce common reporter proteins, to demonstrate their actuator functions as well as dynamic pair-wise interactions. The structural design of the hydrogel can endure continued growth of various bacteria colonies within the confined space for over 10 days. The total amount of cellular biomass upon hydrogel-shell confinement was increased 5-fold compared to conventional techniques without hydrogel-shell. Furthermore, the enzymatic activity increased 3.8-fold and bioluminescence signal by 8-fold compared to the responses from conventional hydrogel systems. The conceptualized platform and our workflow represent a reliable strategy with core-shell structures to develop artificial hydrogel habitats as bacteria-based functional systems for bioactuation.
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Affiliation(s)
- Yoon Jeong
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Wentao Kong
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Carl R. Woese Institute for Genomic Biology and Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Ting Lu
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Carl R. Woese Institute for Genomic Biology and Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Joseph Irudayaraj
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Carl R. Woese Institute for Genomic Biology and Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
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9
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Fatima M, Sheikh A, Abourehab MAS, Kesharwani P. Advancements in Polymeric Nanocarriers to Mediate Targeted Therapy against Triple-Negative Breast Cancer. Pharmaceutics 2022; 14:2432. [PMID: 36365249 PMCID: PMC9695386 DOI: 10.3390/pharmaceutics14112432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/06/2022] [Accepted: 11/08/2022] [Indexed: 11/12/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is a destructive disease with a poor prognosis, low survival rate and high rate of metastasis. It comprises 15% of total breast cancers and is marked by deficiency of three important receptor expressions, i.e., progesterone, estrogen, and human epidermal growth factor receptors. This absence of receptors is the foremost cause of current TNBC therapy failure, resulting in poor therapeutic response in patients. Polymeric nanoparticles are gaining much popularity for transporting chemotherapeutics, genes, and small-interfering RNAs. Due to their exclusive properties such as great stability, easy surface modification, stimuli-responsive and controlled drug release, ability to condense more than one therapeutic moiety inside, tumor-specific delivery of payload, enhanced permeation and retention effect, present them as ideal nanocarriers for increasing efficacy, bioavailability and reducing the toxicity of therapeutic agents. They can even be used as theragnostic agents for the diagnosis of TNBC along with its treatment. In this review, we discuss the limitations of already existing TNBC therapies and highlight the novel approach to designing and the functionalization of polymeric nanocarriers for the effective treatment of TNBC.
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Affiliation(s)
- Mahak Fatima
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Afsana Sheikh
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Mohammed A. S. Abourehab
- Department of Pharmaceutics, College of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Prashant Kesharwani
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
- Center for Transdisciplinary Research, Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Science, Chennai 602105, India
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10
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Wang J, Guo N, Hou W, Qin H. Coating bacteria for anti-tumor therapy. Front Bioeng Biotechnol 2022; 10:1020020. [PMID: 36185433 PMCID: PMC9520470 DOI: 10.3389/fbioe.2022.1020020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 09/01/2022] [Indexed: 11/13/2022] Open
Abstract
Therapeutic bacteria have shown great potential on anti-tumor therapy. Compared with traditional therapeutic strategy, living bacteria present unique advantages. Bacteria show high targeting and great colonization ability in tumor microenvironment with hypoxic and nutritious conditions. Bacterial-medicated antitumor therapy has been successfully applied on mouse models, but the low therapeutic effect and biosafe limit its application on clinical treatment. With the development of material science, coating living bacteria with suitable materials has received widespread attention to achieve synergetic therapy on tumor. In this review, we summarize various materials for coating living bacteria in cancer therapy and envision the opportunities and challenges of bacteria-medicated antitumor therapy.
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Affiliation(s)
- Jiahui Wang
- Department of Gastrointestinal Surgery, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
| | - Ning Guo
- Department of Gastrointestinal Surgery, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
- *Correspondence: Ning Guo, ; Weiliang Hou, ; Huanlong Qin,
| | - Weiliang Hou
- Department of Gastrointestinal Surgery, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
- Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Institute of Molecular Medicine, Renji Hospital School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Ning Guo, ; Weiliang Hou, ; Huanlong Qin,
| | - Huanlong Qin
- Department of Gastrointestinal Surgery, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
- *Correspondence: Ning Guo, ; Weiliang Hou, ; Huanlong Qin,
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11
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Xia K, Zheng X, Wang Y, Zhong W, Dong Z, Ye Z, Zhang Z. Biomimetic Chiral Photonic Materials with Tunable Metallic Colorations Prepared from Chiral Melanin-like Nanorods for UV Shielding, Humidity Sensing, and Cosmetics. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8114-8124. [PMID: 35731984 DOI: 10.1021/acs.langmuir.2c01004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Many biological species combine the helical organization of cellulose or chitin microfibrils with broadband light absorption of black melanin to produce brilliant structural colors with metallic and glossy effects and other diverse functions. In this work, based on core-shell CNC@PDA chiral nanorods consisting of cellulose nanocrystals (CNCs) as the core and melanin-like polydopamine (PDA) as the shell that can form well-defined chiral liquid crystal phases, we report chiral photonic materials that closely mimic the unique coloration mechanisms and functionalities mastered by several biological species. The photonic films formed by such single CNC@PDA nanorods have brilliant iridescent structural colors originating from selective reflection of circularly polarized lights by the helical organization of CNC@PDAs across the films. Furthermore, the colors of such films have background-independent brightness, high visibility, and metallic effects that arise from the light absorption of the PDA component. Especially, the color ranges and metallic effects of the films can be conveniently tuned by varying the thickness of the PDA shell. In addition, the UV absorption and hygroscopic properties of PDA endow these CNC@PDA films with efficient broadband UV shielding and sensitive humidity-induced dynamic color changes. Due to the mussel-like superior adhesion of PDA, CNC@PDA-based photonic coatings can be formed conformably onto diverse kinds of substrates. A shiny eye shadow with viewing angle-dependent colorful patterns was used to demonstrate the potential applications. With combinations of multiple unique properties in one photonic material fabricated from a single building block, these CNC@PDA-based films are expected to have potential applications in cosmetics, UV protection, anticounterfeiting, chiral reflectors, etc.
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Affiliation(s)
- Ke Xia
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, 300071 Tianjin, China
| | - Xiaonan Zheng
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, 300071 Tianjin, China
| | - Yuhan Wang
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, 300071 Tianjin, China
| | - Weiting Zhong
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, 300071 Tianjin, China
| | - Ziyue Dong
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, 300071 Tianjin, China
| | - Zihan Ye
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, 300071 Tianjin, China
| | - Zhenkun Zhang
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, 300071 Tianjin, China
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12
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Artificially sporulated Escherichia coli cells as a robust cell factory for interfacial biocatalysis. Nat Commun 2022; 13:3142. [PMID: 35668090 PMCID: PMC9170730 DOI: 10.1038/s41467-022-30915-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 05/06/2022] [Indexed: 12/13/2022] Open
Abstract
The natural bacterial spores have inspired the development of artificial spores, through coating cells with protective materials, for durable whole-cell catalysis. Despite attractiveness, artificial spores developed to date are generally limited to a few microorganisms with their natural endogenous enzymes, and they have never been explored as a generic platform for widespread synthesis. Here, we report a general approach to designing artificial spores based on Escherichia coli cells with recombinant enzymes. The artificial spores are simply prepared by coating cells with polydopamine, which can withstand UV radiation, heating and organic solvents. Additionally, the protective coating enables living cells to stabilize aqueous-organic emulsions for efficient interfacial biocatalysis ranging from single reactions to multienzyme cascades. Furthermore, the interfacial system can be easily expanded to chemoenzymatic synthesis by combining artificial spores with metal catalysts. Therefore, this artificial-spore-based platform technology is envisioned to lay the foundation for next-generation cell factory engineering.
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13
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Wang L, Zhang BB, Yang XY, Su BL. Alginate@polydopamine@SiO 2 microcapsules with controlled porosity for whole-cell based enantioselective biosynthesis of (S)-1-phenylethanol. Colloids Surf B Biointerfaces 2022; 214:112454. [PMID: 35290821 DOI: 10.1016/j.colsurfb.2022.112454] [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: 02/04/2022] [Revised: 03/05/2022] [Accepted: 03/08/2022] [Indexed: 11/24/2022]
Abstract
Whole-cell biocatalysis, owing to its high enantioselectivity, environment friendly and mild reaction condition, show a great prospect in chemical, pharmaceutical and fuel industry. However, several problems still limit its wide applications, mainly concerning the low productivity and poor stability. Although the biocatalyst encapsulated in the most-commonly-used alginate hydrogels demonstrate enhanced stability, it still suffers from low biocatalytic productivity, long-term reusability and poor mass diffusion control. In this work, hybrid alginate@polydopamine@SiO2 microcapsules with controlled porosity are designed to encapsulate yeast cells for the asymmetric biosynthesis of (S)- 1-phenylethonal from acetophenone. The hybrid microcapsules are formed by the ionic cross-linking of alginate, the polymerization of dopamine monomers and the protamine-assisted colloidal packing of uniform-sized silica nanoparticles. Alginate provides the encapsulated cells with highly biocompatible environment. Polydopamine enables to stimulate the biocatalytic productivity of the encapsulated yeast cells. Silica shells can not only regulate the mass diffusion in biocatalysis but also enhance the long-term mechanical and chemical stability of the microcapsules. The morphology, structure, chemical composition, stability and molecular accessibility of the hybrid microcapsules are investigated in detail. The viability and asymmetric bioreduction performance of the cells encapsulated in microcapsules are evaluated. The 24 h product yield of the cells encapsulated in the hybrid microcapsules shows 1.75 times higher than that of the cells encapsulated in pure alginate microcapsules. After 6 batches, the 24 h product yield of the cells encapsulated in the hybrid microcapsules is well maintained and 2 times higher than that of the cells encapsulated in pure alginate microcapsules. Therefore, the hybrid microcapsules designed in this study enable to enhance the asymmetric biocatalytic activity, stability and reusability of the encapsulated cells, thus contributing to a significant progress in cell-encapsulating materials to be applied in biocatalytic asymmetric synthesis industry.
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Affiliation(s)
- Li Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China; Laboratory of Inorganic Materials Chemistry (CMI), University of Namur, 61 Rue de Bruxelles, Namur 5000, Belgium
| | - Bo-Bo Zhang
- Laboratory of Inorganic Materials Chemistry (CMI), University of Namur, 61 Rue de Bruxelles, Namur 5000, Belgium; Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Sciences, Department of Biology, College of Science, Shantou University, Shantou 515063, China
| | - Xiao-Yu Yang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China
| | - Bao-Lian Su
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China; Laboratory of Inorganic Materials Chemistry (CMI), University of Namur, 61 Rue de Bruxelles, Namur 5000, Belgium.
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14
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Chen WH, Chen QW, Chen Q, Cui C, Duan S, Kang Y, Liu Y, Liu Y, Muhammad W, Shao S, Tang C, Wang J, Wang L, Xiong MH, Yin L, Zhang K, Zhang Z, Zhen X, Feng J, Gao C, Gu Z, He C, Ji J, Jiang X, Liu W, Liu Z, Peng H, Shen Y, Shi L, Sun X, Wang H, Wang J, Xiao H, Xu FJ, Zhong Z, Zhang XZ, Chen X. Biomedical polymers: synthesis, properties, and applications. Sci China Chem 2022; 65:1010-1075. [PMID: 35505924 PMCID: PMC9050484 DOI: 10.1007/s11426-022-1243-5] [Citation(s) in RCA: 64] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 04/01/2022] [Indexed: 02/07/2023]
Abstract
Biomedical polymers have been extensively developed for promising applications in a lot of biomedical fields, such as therapeutic medicine delivery, disease detection and diagnosis, biosensing, regenerative medicine, and disease treatment. In this review, we summarize the most recent advances in the synthesis and application of biomedical polymers, and discuss the comprehensive understanding of their property-function relationship for corresponding biomedical applications. In particular, a few burgeoning bioactive polymers, such as peptide/biomembrane/microorganism/cell-based biomedical polymers, are also introduced and highlighted as the emerging biomaterials for cancer precision therapy. Furthermore, the foreseeable challenges and outlook of the development of more efficient, healthier and safer biomedical polymers are discussed. We wish this systemic and comprehensive review on highlighting frontier progress of biomedical polymers could inspire and promote new breakthrough in fundamental research and clinical translation.
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Affiliation(s)
- Wei-Hai Chen
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072 China
| | - Qi-Wen Chen
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072 China
| | - Qian Chen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123 China
| | - Chunyan Cui
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300350 China
| | - Shun Duan
- Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029 China
| | - Yongyuan Kang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027 China
| | - Yang Liu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Nankai University, Tianjin, 300071 China
| | - Yun Liu
- Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058 China
- Jinhua Institute of Zhejiang University, Jinhua, 321299 China
| | - Wali Muhammad
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027 China
| | - Shiqun Shao
- Zhejiang Key Laboratory of Smart BioMaterials and Center for Bionanoengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 311215 China
| | - Chengqiang Tang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438 China
| | - Jinqiang Wang
- Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058 China
- Jinhua Institute of Zhejiang University, Jinhua, 321299 China
| | - Lei Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nano-science, National Center for Nanoscience and Technology (NCNST), Beijing, 100190 China
| | - Meng-Hua Xiong
- School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou, 510006 China
| | - Lichen Yin
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou, 215123 China
| | - Kuo Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nano-science, National Center for Nanoscience and Technology (NCNST), Beijing, 100190 China
| | - Zhanzhan Zhang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Nankai University, Tianjin, 300071 China
| | - Xu Zhen
- Department of Polymer Science and Engineering, College of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093 China
| | - Jun Feng
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072 China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027 China
| | - Zhen Gu
- Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058 China
- Jinhua Institute of Zhejiang University, Jinhua, 321299 China
| | - Chaoliang He
- CAS Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022 China
| | - Jian Ji
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027 China
| | - Xiqun Jiang
- Department of Polymer Science and Engineering, College of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093 China
| | - Wenguang Liu
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300350 China
| | - Zhuang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123 China
| | - Huisheng Peng
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438 China
| | - Youqing Shen
- Zhejiang Key Laboratory of Smart BioMaterials and Center for Bionanoengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 311215 China
| | - Linqi Shi
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Nankai University, Tianjin, 300071 China
| | - Xuemei Sun
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438 China
| | - Hao Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nano-science, National Center for Nanoscience and Technology (NCNST), Beijing, 100190 China
| | - Jun Wang
- School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou, 510006 China
| | - Haihua Xiao
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 China
| | - Fu-Jian Xu
- Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029 China
| | - Zhiyuan Zhong
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, 215123 China
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123 China
| | - Xian-Zheng Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072 China
| | - Xuesi Chen
- CAS Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022 China
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15
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Moya-Ramírez I, Kotidis P, Marbiah M, Kim J, Kontoravdi C, Polizzi K. Polymer Encapsulation of Bacterial Biosensors Enables Coculture with Mammalian Cells. ACS Synth Biol 2022; 11:1303-1312. [PMID: 35245022 PMCID: PMC9007569 DOI: 10.1021/acssynbio.1c00577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Coexistence of different populations of cells and isolation of tasks can provide enhanced robustness and adaptability or impart new functionalities to a culture. However, generating stable cocultures involving cells with vastly different growth rates can be challenging. To address this, we developed living analytics in a multilayer polymer shell (LAMPS), an encapsulation method that facilitates the coculture of mammalian and bacterial cells. We leverage LAMPS to preprogram a separation of tasks within the coculture: growth and therapeutic protein production by the mammalian cells and l-lactate biosensing by Escherichia coli encapsulated within LAMPS. LAMPS enable the formation of a synthetic bacterial-mammalian cell interaction that enables a living biosensor to be integrated into a biomanufacturing process. Our work serves as a proof-of-concept for further applications in bioprocessing since LAMPS combine the simplicity and flexibility of a bacterial biosensor with a viable method to prevent runaway growth that would disturb mammalian cell physiology.
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Affiliation(s)
- Ignacio Moya-Ramírez
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
- Imperial College Centre for Synthetic Biology, Imperial College London, London SW7 2AZ, United Kingdom
| | - Pavlos Kotidis
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Masue Marbiah
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
- Imperial College Centre for Synthetic Biology, Imperial College London, London SW7 2AZ, United Kingdom
| | - Juhyun Kim
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
- Imperial College Centre for Synthetic Biology, Imperial College London, London SW7 2AZ, United Kingdom
| | - Cleo Kontoravdi
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Karen Polizzi
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
- Imperial College Centre for Synthetic Biology, Imperial College London, London SW7 2AZ, United Kingdom
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16
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Tong G, Qian H, Li D, Li J, Chen J, Li X. Establishment and evaluation of a specific antibiotic-induced inflammatory bowel disease model in rats. PLoS One 2022; 17:e0264194. [PMID: 35192646 PMCID: PMC8863245 DOI: 10.1371/journal.pone.0264194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 02/06/2022] [Indexed: 12/03/2022] Open
Abstract
Physical and chemical methods for generating rat models of enteritis have been established; however, antibiotic induction has rarely been used for this purpose. The present study aimed to establish and evaluate a rat model of inflammatory bowel disease (IBD) using antibiotics. A total of 84 Sprague-Dawley (SD) rats were divided into the following groups, according to the dosage and method of administration of the antibiotics: A, control; B, low-dose clindamycin; C, medium-dose clindamycin; D, high-dose clindamycin; E, low-dose clindamycin, ampicillin and streptomycin; F, medium-dose clindamycin, ampicillin and streptomycin; and G, high-dose clindamycin, ampicillin and streptomycin. Antibiotic administration was stopped on day 7; the modeling period covered days 1-7, and the recovery period covered days 8-15. Half of the animals were dissected on day 11, with the remaining animals dissected on day 15. Food and water intake, body weight and fecal weight were recorded. Intestinal flora was analyzed via microbial culture and quantitative PCR. The content of TNF-α, IL1-β, IL-6 and C-reactive protein (CRP) was assessed in abdominal aorta blood. Colonic and rectal tissues were examined pathologically via hematoxylin-eosin staining to assess leukocyte infiltration and intestinal mucosal changes as indicators of inflammation. Rat weight, food intake, water intake and 2-h fecal weight were significantly different across the experimental groups (P = 0.040, P = 0.016, P<0.001 and P = 0.009, respectively). Microbial cultures revealed no significant differences between group A and B,C (P = 0.546,0.872) but significant differences betwenn group A and the other experimental groups (all P<0.001). Furthermore, significant differences in the levels of Bacteroides, Faecalibacterium prausnitzii and Dialister invisus on day 4 between groups A, C and F (P = 0.033, P = 0.025 and P = 0.034, respectively). Significant differences were detected in the levels of TNF-α, IL1-β, IL-6 and CRP between the groups (all P<0.001). The colonic and rectal pathological inflammation scores of the experimental groups were significantly different compared with group A (B vs. A, P = 0.002; others, all P<0.001). These findings indicated that an antibiotic-induced IBD model was successfully established in SD rats; this animal model may serve as a useful model for clinical IBD research.
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Affiliation(s)
- Guojun Tong
- Departments of General Surgery, Huzhou Central Hospital, Huzhou, Zhejiang, China
- Central Laboratory, Huzhou Central Hospital, Huzhou, Zhejiang, China
| | - Hai Qian
- Departments of General Surgery, Huzhou Central Hospital, Huzhou, Zhejiang, China
| | - Dongli Li
- Central Laboratory, Huzhou Central Hospital, Huzhou, Zhejiang, China
| | - Jing Li
- Central Laboratory, Huzhou Central Hospital, Huzhou, Zhejiang, China
| | - Jing Chen
- Central Laboratory, Huzhou Central Hospital, Huzhou, Zhejiang, China
| | - Xiongfeng Li
- Orthopedic Surgery, Huzhou Central Hospital, Huzhou, Zhejiang, China
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17
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Yan G, Wang H, Lv J, Li C, Zhang B. Surface modification of nucleopolyhedrovirus with polydopamine to improve its properties. PEST MANAGEMENT SCIENCE 2022; 78:456-466. [PMID: 34505327 DOI: 10.1002/ps.6640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/06/2021] [Accepted: 09/09/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Baculoviruses have been developed as promising biopesticides to control pests due to their high host specificity and virulence, and nontoxicity to humans and nontarget animals. However, their sensitivity to ultraviolet (UV) radiation and instability in the natural environment are major constraints to its large-scale application. In this study, polydopamine-nucleopolyhedrovirus microcapsules were established to improve the instability of baculoviruses in sunlight. RESULTS The optimal conditions for the preparation of polydopamine-nucleopolyhedrovirus microcapsules were as follows: Spodoptera exigua nucleopolyhedrovirus (SeMNPV)concentration of 2 × 108 polyhedral inclusion body(PIB) mL-1 , reaction time of 6 h, and pH of 9.0. The particle size of the obtained microcapsules was about 1 μm. The microencapsulated baculovirus improved its thermal stability and wettability, and enhanced its insecticidal activity against Spodoptera exigua. Moreover, under the same UV treatment, the insecticidal effect against S. exigua larvae of microencapsulated baculovirus was only reduced by 8.89%, whereas that of the nonmicroencapsulated baculovirus was reduced by 27.27%. CONCLUSION Polydopamine-nucleopolyhedrovirus microcapsules provided better UV resistance and preparation stability compared with unmodified SeMNPV, and demonstrate an idea for the development of a baculovirus-based stabilized product. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Guangyao Yan
- Institute of New Pesticide Innovation & Research, Qingdao Agricultural University, Qingdao, Shandong, 266109, People's Republic of China
| | - Hongmei Wang
- School of Chemistry and Pharmacy, Qingdao Agricultural University, Qingdao, Shandong, 266109, People's Republic of China
| | - Jiajing Lv
- Institute of New Pesticide Innovation & Research, Qingdao Agricultural University, Qingdao, Shandong, 266109, People's Republic of China
| | - Changyou Li
- Key Lab of Integrated Crop Pest Management of Shandong Province, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, Shandong, 266109, People's Republic of China
| | - Baohua Zhang
- Institute of New Pesticide Innovation & Research, Qingdao Agricultural University, Qingdao, Shandong, 266109, People's Republic of China
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18
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Liu F, Liu X, Chen F, Fu Q. Mussel-inspired chemistry: A promising strategy for natural polysaccharides in biomedical applications. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2021.101472] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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19
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Chen QW, Qiao JY, Liu XH, Zhang C, Zhang XZ. Customized materials-assisted microorganisms in tumor therapeutics. Chem Soc Rev 2021; 50:12576-12615. [PMID: 34605834 DOI: 10.1039/d0cs01571g] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Microorganisms have been extensively applied as active biotherapeutic agents or drug delivery vehicles for antitumor treatment because of their unparalleled bio-functionalities. Taking advantage of the living attributes of microorganisms, a new avenue has been opened in anticancer research. The integration of customized functional materials with living microorganisms has demonstrated unprecedented potential in solving existing questions and even conferring microorganisms with updated antitumor abilities and has also provided an innovative train of thought for enhancing the efficacy of microorganism-based tumor therapy. In this review, we have summarized the emerging development of customized materials-assisted microorganisms (MAMO) (including bacteria, viruses, fungi, microalgae, as well as their components) in tumor therapeutics with an emphasis on the rational utilization of chosen microorganisms and tailored materials, the ingenious design of biohybrid systems, and the efficacious antitumor mechanisms. The future perspectives and challenges in this field are also discussed.
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Affiliation(s)
- Qi-Wen Chen
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China.
| | - Ji-Yan Qiao
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China.
| | - Xin-Hua Liu
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China.
| | - Cheng Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China.
| | - Xian-Zheng Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China.
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20
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Jiao C, Zhao C, Ma Y, Yang W. A Versatile Strategy to Coat Individual Cell with Fully/Partially Covered Shell for Preparation of Self-Propelling Living Cells. ACS NANO 2021; 15:15920-15929. [PMID: 34591443 DOI: 10.1021/acsnano.1c03896] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Coating living cells with a functional shell has been regarded as an effective way to protect them against environmental stress, regulate their biological behaviors, or extend their functionalities. Here, we reported a facile method to prepare fully or partially coated shells on an individual yeast cell surface by visible light-induced graft polymerization. In this strategy, yeast cells that were surface-absorbed with polyethylenimine (PEI) were deposited on the negatively charged glass slide to form a single layer by electrostatic interaction. Then, surface-initiated graft polymerization of poly(ethylene glycol) diacrylate (PEGDA) on yeast cells under visible light irradiation was carried out to generate cross-linked shells on the cells. The process of surface modification had negligible influence on the viability of yeast cells due to the mild reaction condition. Additionally, compared to the native yeast cells, a 17.5 h of delay in division was observed when the graft polymerization was performed under 15 mW/cm2 irradiation for 30 min. Introducing artificial shell endowed yeast cells with significant resistance against lyticase, and the protection can be enhanced by increasing the thickness of shell. Moreover, the partially coated yeast cells would be prepared by simply adjusting the reaction condition such as irradiation density and time. By immobilizing urease on the functional patch, the asymmetrically modified yeast cells exhibited self-propelling capability, and the speed of directional movement reached 4 μm/s in the presence of 200 mM urea. This tunable coating individual cell strategy with varying functionality has great potential applications in fields of cell-based drug delivery, cell therapy, biocatalysis, and tissue engineering.
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Affiliation(s)
- Chong Jiao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Changwen Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
- Key Laboratory of Biomedical Materials of Natural Macromolecules, Ministry of Education Beijing, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yuhong Ma
- Key Laboratory of Carbon Fiber and Functional Polymers Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Wantai Yang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
- Key Laboratory of Biomedical Materials of Natural Macromolecules, Ministry of Education Beijing, Beijing University of Chemical Technology, Beijing, 100029, China
- Key Laboratory of Carbon Fiber and Functional Polymers Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, China
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21
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Mulazzi M, Campodoni E, Bassi G, Montesi M, Panseri S, Bonvicini F, Gentilomi GA, Tampieri A, Sandri M. Medicated Hydroxyapatite/Collagen Hybrid Scaffolds for Bone Regeneration and Local Antimicrobial Therapy to Prevent Bone Infections. Pharmaceutics 2021; 13:pharmaceutics13071090. [PMID: 34371782 PMCID: PMC8309148 DOI: 10.3390/pharmaceutics13071090] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/29/2021] [Accepted: 07/12/2021] [Indexed: 12/15/2022] Open
Abstract
Microbial infections occurring during bone surgical treatment, the cause of osteomyelitis and implant failures, are still an open challenge in orthopedics. Conventional therapies are often ineffective and associated with serious side effects due to the amount of drugs administered by systemic routes. In this study, a medicated osteoinductive and bioresorbable bone graft was designed and investigated for its ability to control antibiotic drug release in situ. This represents an ideal solution for the eradication or prevention of infection, while simultaneously repairing bone defects. Vancomycin hydrochloride and gentamicin sulfate, here considered for testing, were loaded into a previously developed and largely investigated hybrid bone-mimetic scaffold made of collagen fibers biomineralized with magnesium doped-hydroxyapatite (MgHA/Coll), which in the last ten years has widely demonstrated its effective potential in bone tissue regeneration. Here, we have explored whether it can be used as a controlled local delivery system for antibiotic drugs. An easy loading method was selected in order to be reproducible, quickly, in the operating room. The maintenance of the antibacterial efficiency of the released drugs and the biosafety of medicated scaffolds were assessed with microbiological and in vitro tests, which demonstrated that the MgHA/Coll scaffolds were safe and effective as a local delivery system for an extended duration therapy—promising results for the prevention of bone defect-related infections in orthopedic surgeries.
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Affiliation(s)
- Manuela Mulazzi
- Institute of Science and Technology for Ceramics, National Research Council of Italy, ISTEC-CNR, 48018 Faenza, Italy; (M.M.); (G.B.); (M.M.); (S.P.); (A.T.)
| | - Elisabetta Campodoni
- Institute of Science and Technology for Ceramics, National Research Council of Italy, ISTEC-CNR, 48018 Faenza, Italy; (M.M.); (G.B.); (M.M.); (S.P.); (A.T.)
- Correspondence: (E.C.); (M.S.); Tel.: +39-0546-699761 (E.C. & M.S.)
| | - Giada Bassi
- Institute of Science and Technology for Ceramics, National Research Council of Italy, ISTEC-CNR, 48018 Faenza, Italy; (M.M.); (G.B.); (M.M.); (S.P.); (A.T.)
| | - Monica Montesi
- Institute of Science and Technology for Ceramics, National Research Council of Italy, ISTEC-CNR, 48018 Faenza, Italy; (M.M.); (G.B.); (M.M.); (S.P.); (A.T.)
| | - Silvia Panseri
- Institute of Science and Technology for Ceramics, National Research Council of Italy, ISTEC-CNR, 48018 Faenza, Italy; (M.M.); (G.B.); (M.M.); (S.P.); (A.T.)
| | - Francesca Bonvicini
- Department of Pharmacy and Biotechnology, University of Bologna, Via Massarenti 9, 40138 Bologna, Italy; (F.B.); (G.A.G.)
| | - Giovanna Angela Gentilomi
- Department of Pharmacy and Biotechnology, University of Bologna, Via Massarenti 9, 40138 Bologna, Italy; (F.B.); (G.A.G.)
- Operative Unit of Microbiology, IRCCS St. Orsola Hospital, University of Bologna, Via Massarenti 9, 40138 Bologna, Italy
| | - Anna Tampieri
- Institute of Science and Technology for Ceramics, National Research Council of Italy, ISTEC-CNR, 48018 Faenza, Italy; (M.M.); (G.B.); (M.M.); (S.P.); (A.T.)
| | - Monica Sandri
- Institute of Science and Technology for Ceramics, National Research Council of Italy, ISTEC-CNR, 48018 Faenza, Italy; (M.M.); (G.B.); (M.M.); (S.P.); (A.T.)
- Correspondence: (E.C.); (M.S.); Tel.: +39-0546-699761 (E.C. & M.S.)
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22
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Dong J, He Y, Zhang J, Wu Z. Tuning alginate-bentonite microcapsule size and structure for the regulated release of P. putida Rs-198. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2021.03.056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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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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24
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Tang TC, Tham E, Liu X, Yehl K, Rovner AJ, Yuk H, de la Fuente-Nunez C, Isaacs FJ, Zhao X, Lu TK. Hydrogel-based biocontainment of bacteria for continuous sensing and computation. Nat Chem Biol 2021; 17:724-731. [PMID: 33820990 DOI: 10.1038/s41589-021-00779-6] [Citation(s) in RCA: 94] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 02/25/2021] [Indexed: 12/12/2022]
Abstract
Genetically modified microorganisms (GMMs) can enable a wide range of important applications including environmental sensing and responsive engineered living materials. However, containment of GMMs to prevent environmental escape and satisfy regulatory requirements is a bottleneck for real-world use. While current biochemical strategies restrict unwanted growth of GMMs in the environment, there is a need for deployable physical containment technologies to achieve redundant, multi-layered and robust containment. We developed a hydrogel-based encapsulation system that incorporates a biocompatible multilayer tough shell and an alginate-based core. This deployable physical containment strategy (DEPCOS) allows no detectable GMM escape, bacteria to be protected against environmental insults including antibiotics and low pH, controllable lifespan and easy retrieval of genomically recoded bacteria. To highlight the versatility of DEPCOS, we demonstrated that robustly encapsulated cells can execute useful functions, including performing cell-cell communication with other encapsulated bacteria and sensing heavy metals in water samples from the Charles River.
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Affiliation(s)
- Tzu-Chieh Tang
- Synthetic Biology Group, Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA. .,Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA. .,The Mediated Matter Group, Media Laboratory, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Eléonore Tham
- Synthetic Biology Group, Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA.,Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Xinyue Liu
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Kevin Yehl
- Synthetic Biology Group, Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA.,Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.,Department of Chemistry and Biochemistry, Miami University, Oxford, OH, USA
| | - Alexis J Rovner
- Wyss Institute for Biologically Inspired Engineering, Boston, MA, USA.,Department of Genetics, Harvard Medical School, Harvard University, Boston, MA, USA
| | - Hyunwoo Yuk
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Cesar de la Fuente-Nunez
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Departments of Bioengineering and Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, USA.,Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, PA, USA
| | - Farren J Isaacs
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT, USA.,Systems Biology Institute, Yale University, West Haven, CT, USA.,Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - Xuanhe Zhao
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA. .,Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Timothy K Lu
- Synthetic Biology Group, Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA. .,Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA. .,Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA.
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25
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Li H, Kang A, An B, Chou LY, Shieh FK, Tsung CK, Zhong C. Encapsulation of bacterial cells in cytoprotective ZIF-90 crystals as living composites. Mater Today Bio 2021; 10:100097. [PMID: 33733083 PMCID: PMC7937694 DOI: 10.1016/j.mtbio.2021.100097] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/19/2021] [Accepted: 01/20/2021] [Indexed: 12/19/2022] Open
Abstract
Exploiting metal-organic frameworks (MOFs) as selectively permeable shelters for encapsulating engineered cells to form hybrid living materials has attracted increasing attention in recent years. Optimizing the synthesis process to improve encapsulation efficiency (EE) is critical for further technological development and applications. Here, using ZIF-90 and genetically engineered Escherichia coli (E. coli) as a demo, we fabricated E. coli@ZIF-90 living composites in which E. coli cells were encapsulated in ZIF-90 crystals. We illustrated that ZIF-90 could serve as a protective porous cage for cells to shield against toxic bactericides including benzaldehyde, cinnamaldehyde, and kanamycin. Notably, the E. coli cells remained alive and could self-reproduce after removing the ZIF-90 crystal cages in ethylenediaminetetraacetic acid, suggesting a feasible route for protecting and prolonging the lifespan of bacterial cells. Moreover, an aqueous multiple-step deposition approach was developed to improve EE of the E. coli@ZIF-90 composites: the EE increased to 61.9 ± 5.2%, in contrast with the efficiency of the traditional method (21.3 ± 4.4%) prepared with PBS buffer. In short, we develop a simple yet viable strategy to manufacture MOF-based living hybrid materials that promise new applications across diverse fields.
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Affiliation(s)
- H. Li
- Materials and Physical Biology Division, School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - A. Kang
- Materials and Physical Biology Division, School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - B. An
- Materials and Physical Biology Division, School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - L.-Y. Chou
- Materials and Physical Biology Division, School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - F.-K. Shieh
- Department of Chemistry, National Central University, Taoyuan 32001, Taiwan
| | - C.-K. Tsung
- Boston College Chemistry Department, Merkert Chemistry Center, 2609 Beacon St, Chestnut Hill, MA 02467, USA
| | - C. Zhong
- Materials and Physical Biology Division, School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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26
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Chen W, Yang Z, Fu X, Du L, Tian Y, Wang J, Cai W, Guo P, Wu C. Synthesis of a Removable Cytoprotective Exoskeleton by Tea Polyphenol Complexes for Living Cell Encapsulation. ACS Biomater Sci Eng 2021; 7:764-771. [PMID: 33438418 DOI: 10.1021/acsbiomaterials.0c01617] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Cell encapsulation is a chemical tool for endowing living cells with exogenous properties and enhancing their in vitro tolerance against lethal factors, which has shown promising prospects and potential applications in many fields such as cell transplantation, drug delivery, and tissue engineering. One-pot precipitation of a polyphenol-metal complex on cells protects cells from UV irradiation and lytic enzymes. However, the involvement of metal ions brings side effects on cell viability and growth. Moreover, an external removal agent is needed for cell division and growth. Herein, a polymer shell composed of hydrogen bonded constituents without affecting cell viability and growth by the precipitation of tea polyphenol and polyvinyl pyrrolidone is reported. The formation of the polymer shell was verified by the Au nanoparticle's laser scanning confocal reflectance and quartz crystal microbalance measurement. The thickness of the shell was managed by the concentration of the complex. When exposed to UV irradiation for 15 or 30 min, polymer-coating-protected Saccharomyces cerevisiae (yeast) had much higher cell viability than the native one. Exposed to a high temperature environment (60 °C), most of the coated yeasts survived in contrast to uncoated ones. For the cell division and growth curve, the polymer coating with various thicknesses had no difference to the native one, which indicated no suppression of cell growth and no external side effects involved. As applied to mammalian HeLa cells under UV irradiation for 15 min, the coated cells had an obvious higher cell viability than that of untreated ones. Therefore, the tea polyphenol-poly(vinylpyrrolidone) shell is a versatile tool for chemically controlling the external properties of cells without side effects on cell viability and growth.
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Affiliation(s)
- Wei Chen
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Zhao Yang
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Xingchuang Fu
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Liping Du
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China.,Biosensor National Special Laboratory, Key Laboratory for Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yulan Tian
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Jian Wang
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Wen Cai
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Ping Guo
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Chunsheng Wu
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
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27
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Raja N, Park H, Choi YJ, Yun HS. Multifunctional Calcium-Deficient Hydroxyl Apatite-Alginate Core-Shell-Structured Bone Substitutes as Cell and Drug Delivery Vehicles for Bone Tissue Regeneration. ACS Biomater Sci Eng 2021; 7:1123-1133. [PMID: 33541070 DOI: 10.1021/acsbiomaterials.0c01341] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
In this work, we fabricated unique coiled-structured bioceramics contained in hydrogel beads for simultaneous drug and cell delivery using a combination of bone cement chemistry and bioprinting and characterized them. The core of the calcium-deficient hydroxyl apatite (CDHA) contains quercetin, which is a representative phytoestrogen isolated from onions and apples, to control the metabolism of bone tissue regeneration through sustained release over a long period of time. The shell consists of an alginate hydrogel that includes preosteoblast MC3T3-E1 cells. Ceramic paste and hydrogel were simultaneously extruded to fabricate core-shell beads through the inner and outer nozzles, respectively, of a concentric nozzle system based on a material-extruding-based three-dimensional (3D) printing system. The formation of beads and the coiled ceramic core is related to both alginate concentration and printing conditions. The size of the microbeads and the thickness of the coiled structure could be controlled by adjusting the nozzle conditions. The whole process was carried out at physiological conditions (37 °C) to be gentle on the cells. The alginate shell undergoes solidification by cross-linking in CaCl2 or monocalcium phosphate monohydrate (MCPM) solution, while the hardening and cementation of the α-tricalcium phosphate (α-TCP) core to CDHA are subsequently initiated by immersion in phosphate-buffered saline solution. This process replaces the typical sintering of ceramic processing to prevent damage to the hydrogel, cells, and drugs in the beads. The cell-loaded beads were then cultured in cell culture media where the cells could maintain good viability during the entire testing period, which was over 50 days. Cell growth and elongation were observed even in the alginate along the CDHA coiled structure over time. Sustained release of quercetin without any initial burst was also confirmed during a test period of 120 days. These novel structured microbeads with multibiofunctionality can be used as new bone substitutes for hard tissue regeneration in indeterminate defect sites.
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Affiliation(s)
- Naren Raja
- Department of Advanced Biomaterials Research, Ceramic Materials Division, Korea Institute of Materials Science (KIMS), 797 Changwon-daero, Seongsan-gu, Changwon-si 51508, Gyeongsangnam-do, Republic of Korea
| | - Honghyun Park
- Department of Advanced Biomaterials Research, Ceramic Materials Division, Korea Institute of Materials Science (KIMS), 797 Changwon-daero, Seongsan-gu, Changwon-si 51508, Gyeongsangnam-do, Republic of Korea
| | - Yeong-Jin Choi
- Department of Advanced Biomaterials Research, Ceramic Materials Division, Korea Institute of Materials Science (KIMS), 797 Changwon-daero, Seongsan-gu, Changwon-si 51508, Gyeongsangnam-do, Republic of Korea
| | - Hui-Suk Yun
- Department of Advanced Biomaterials Research, Ceramic Materials Division, Korea Institute of Materials Science (KIMS), 797 Changwon-daero, Seongsan-gu, Changwon-si 51508, Gyeongsangnam-do, Republic of Korea.,Korea University of Science and Technology (UST), 217 Gajeong-ro, Yeseong-gu, Daejeon 305-350, Republic of Korea
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28
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Efficient encapsulation of water soluble inorganic and organic actives in melamine formaldehyde based microcapsules for control release into an aqueous environment. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2020.116103] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Bakr EA, El-Nahass MN, Hamada WM, Fayed TA. Facile synthesis of superparamagnetic Fe 3O 4@noble metal core-shell nanoparticles by thermal decomposition and hydrothermal methods: comparative study and catalytic applications. RSC Adv 2020; 11:781-797. [PMID: 35746920 PMCID: PMC9134218 DOI: 10.1039/d0ra08230a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 11/24/2020] [Indexed: 12/14/2022] Open
Abstract
Herein, we report on developing a facile synthetic route for reusable nanocatalysts based on a combination of the supermagnetic properties of magnetite with the unique optical and catalytic properties of noble metal hybrid nanomaterials. We compare two different synthetic methods, to find out which is best from synthetic and application points of view, for the synthesis of Fe3O4 and Fe3O4@M (M = Ag or Au) core-shell hybrid nanostructures. The two different single-step synthetic methods are: thermal decomposition and hydrothermal. The structural, morphological and magnetic properties of the obtained Fe3O4 and Fe3O4@M nanoparticles were characterized by various techniques. XRD of the Fe3O4 nanoparticles exhibited sharp and strong diffraction peaks, confirming the highly crystalline structure of the Fe3O4 particles synthesized by the hydrothermal method, while broad and weak peaks were observed on using the thermal decomposition method. Both Fe3O4@Ag and Fe3O4@Au core-shells obtained by the hydrothermal method showed the reflection planes of Fe3O4 and additional planes of Ag or Au. But on the formation of Fe3O4@Ag/Au by the thermal decomposition method the peak for Fe3O4 disappeared and only the diffraction peaks of Ag or Au appeared. According to TEM analysis there was a broad particle-size distribution, random near-spherical shapes and slight particle agglomeration for Fe3O4 synthesized by the thermal decomposition method. However, there was a moderate size distribution, spherical shapes and well-dispersed particles without large aggregations for the hydrothermal method. TEM images of the synthesized nanoparticles by the two methods used showed a pronounced difference in both size and morphological shape. The catalytic performance of the synthesized nanoparticles was examined for the reduction of Congo red dye in the presence of NaBH4. The Fe3O4 nanocatalyst maintained its catalytic activity for only one cycle. In the cases of Fe3O4@Au and Fe3O4@Ag, the catalytic activity was conserved for four and ten successive cycles, respectively. Based on the obtained results, it was concluded that the hydrothermal synthesis of Fe3O4, Fe3O4@Ag and Fe3O4@Au nanostructures is highly recommended due to their selectivity and merits.
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Affiliation(s)
- Eman A Bakr
- Department of Chemistry, Faculty of Science, Tanta University 31527 Tanta Egypt +20-403350804 +20-403344352
| | - Marwa N El-Nahass
- Department of Chemistry, Faculty of Science, Tanta University 31527 Tanta Egypt +20-403350804 +20-403344352
| | - Wafaa M Hamada
- Department of Chemistry, Faculty of Science, Tanta University 31527 Tanta Egypt +20-403350804 +20-403344352
| | - Tarek A Fayed
- Department of Chemistry, Faculty of Science, Tanta University 31527 Tanta Egypt +20-403350804 +20-403344352
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30
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Hui Chong LS, Zhang J, Bhat KS, Yong D, Song J. Bioinspired cell-in-shell systems in biomedical engineering and beyond: Comparative overview and prospects. Biomaterials 2020; 266:120473. [PMID: 33120202 DOI: 10.1016/j.biomaterials.2020.120473] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 10/07/2020] [Accepted: 10/18/2020] [Indexed: 12/28/2022]
Abstract
With the development in tissue engineering, cell transplantation, and genetic technologies, living cells have become an important therapeutic tool in clinical medical care. For various cell-based technologies including cell therapy and cell-based sensors in addition to fundamental studies on single-cell biology, the cytoprotection of individual living cells is a prerequisite to extend cell storage life or deliver cells from one place to another, resisting various external stresses. Nature has evolved a biological defense mechanism to preserve their species under unfavorable conditions by forming a hard and protective armor. Particularly, plant seeds covered with seed coat turn into a dormant state against stressful environments, due to mechanical and water/gas constraints imposed by hard seed coat. However, when the environmental conditions become hospitable to seeds, seed coat is ruptured, initiating seed germination. This seed dormancy and germination mechanism has inspired various approaches that artificially induce cell sporulation via chemically encapsulating individual living cells within a thin but tough shell forming a 3D "cell-in-shell" structure. Herein, the recent advance of cell encapsulation strategies along with the potential advantages of the 3D "cell-in-shell" system is reviewed. Diverse coating materials including polymeric shells and hybrid shells on different types of cells ranging from microbes to mammalian cells will be discussed in terms of enhanced cytoprotective ability, control of division, chemical functionalization, and on-demand shell degradation. Finally, current and potential applications of "cell-in-shell" systems for cell-based technologies with remaining challenges will be explored.
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Affiliation(s)
- Lydia Shi Hui Chong
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, 637457, Singapore; Singapore Institute of Manufacturing Technology, Agency for Science, Technology and Research, 2 Fusionopolis Way, 168384, Singapore
| | - Jingyi Zhang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, 637457, Singapore; Singapore Institute of Manufacturing Technology, Agency for Science, Technology and Research, 2 Fusionopolis Way, 168384, Singapore
| | - Kiesar Sideeq Bhat
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, 637457, Singapore
| | - Derrick Yong
- Singapore Institute of Manufacturing Technology, Agency for Science, Technology and Research, 2 Fusionopolis Way, 168384, Singapore
| | - Juha Song
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, 637457, Singapore.
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31
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Dzionek A, Wojcieszyńska D, Adamczyk-Habrajska M, Karczewski J, Potocka I, Guzik U. Xanthan gum as a carrier for bacterial cell entrapment: Developing a novel immobilised biocatalyst. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 118:111474. [PMID: 33255053 DOI: 10.1016/j.msec.2020.111474] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 08/26/2020] [Accepted: 08/31/2020] [Indexed: 11/29/2022]
Abstract
Xanthan gum (XAN) is a widely used polysaccharide in various industries. Because of its unique properties, in this study, an attempt was made to adopt the procedure of xanthan gum cross-linking for the entrapment of bacterial cells that are able to biodegrade naproxen. The developed procedure proved to be completely neutral for Bacillus thuringiensis B1(2015b) cells, which demonstrated a survival rate of 99%. A negative impact of entrapment was noted for strain Planococcus sp. S5, which showed a survival rate in the 93-51% range. To achieve good mechanical properties of the composites, they were additionally hardened using polydopamine (PDA). XAN/PDA composites revealed a high stability in a wide range of pH, and their sorption capacity included both cationic and anionic molecules. Analysis of the survival rate during storage at 4 °C in 0.9% NaCl showed that, after 35 days, 98-99% of B1(2015b) and 47% of S5 cells entrapped in XAN/PDA remained alive. This study also presents the results of naproxen biodegradation conducted using XAN/PDA/B1(2015b) in a trickling filter with autochthonous microflora. Hence, owing to the significant acceleration of drug biodegradation (1 mg/L in 14 days) and the chemical oxygen demand removal, the entrapped B1(2015b) cells in XAN/PDA composites showed a promising potential in bioremediation studies and industrial applications.
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Affiliation(s)
- Anna Dzionek
- University of Silesia in Katowice, Faculty of Natural Science, Institute of Biology, Biotechnology and Environmental Protection, Jagiellońska 28, 40-032 Katowice, Poland.
| | - Danuta Wojcieszyńska
- University of Silesia in Katowice, Faculty of Natural Science, Institute of Biology, Biotechnology and Environmental Protection, Jagiellońska 28, 40-032 Katowice, Poland
| | - Małgorzata Adamczyk-Habrajska
- University of Silesia in Katowice, Institute of Materials Engineering, Faculty of Science and Technology, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - Jerzy Karczewski
- University of Silesia in Katowice, Faculty of Natural Science, Institute of Biology, Biotechnology and Environmental Protection, Jagiellońska 28, 40-032 Katowice, Poland
| | - Izabela Potocka
- University of Silesia in Katowice, Faculty of Natural Science, Institute of Biology, Biotechnology and Environmental Protection, Jagiellońska 28, 40-032 Katowice, Poland
| | - Urszula Guzik
- University of Silesia in Katowice, Faculty of Natural Science, Institute of Biology, Biotechnology and Environmental Protection, Jagiellońska 28, 40-032 Katowice, Poland
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32
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Lee HA, Park E, Lee H. Polydopamine and Its Derivative Surface Chemistry in Material Science: A Focused Review for Studies at KAIST. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907505. [PMID: 32134525 DOI: 10.1002/adma.201907505] [Citation(s) in RCA: 148] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 12/22/2019] [Indexed: 05/21/2023]
Abstract
Polydopamine coating, the first material-independent surface chemistry, and its related methods significantly influence virtually all areas of material science and engineering. Functionalized surfaces of metal oxides, synthetic polymers, noble metals, and carbon materials by polydopamine and its related derivatives exhibit a variety of properties for cell culture, microfluidics, energy storage devices, superwettability, artificial photosynthesis, encapsulation, drug delivery, and numerous others. Unlike other articles, this review particularly focuses on the development of material science utilizing polydopamine and its derivatives coatings at the Korea Advanced Institute of Science and Technology for a decade. Herein, it is demonstrated how material-independent coating methods provide solutions for challenging problems existed in many interdisciplinary areas in bio-, energy-, and nanomaterial science by collaborations and independent research.
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Affiliation(s)
- Haesung A Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 University Rd., Daejeon, 34141, Republic of Korea
| | - Eunsook Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 University Rd., Daejeon, 34141, Republic of Korea
| | - Haeshin Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 University Rd., Daejeon, 34141, Republic of Korea
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33
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Jeong Y, Kim E, Han BS, Hong D, Kang SM. Zr(IV) Coordination Chemistry for Cell-Repellent Alginate Coatings: The Effect of Surface Functional Groups. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:5192-5197. [PMID: 32375001 DOI: 10.1021/acs.langmuir.0c00471] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Surface modification using alginic acid and its salt, alginate (Alg), has attracted much attention owing to its potential applications in various fields, including tissue engineering, drug delivery, antiplatelet surface preparation, and energy-storage technologies. In these applications, efficient immobilization of Alg on the solid surface is required because the delamination of the surface-bound Alg eventually leads to a significant decrease in its function. Therefore, much effort has been made to introduce Alg onto solid surfaces in a stable manner. Despite recent advances, existing methods for immobilizing Alg on surfaces have some limitations: (i) derivatization of Alg is typically also required and (ii) these methods only function under specific reaction conditions. Herein, we report a Zr(IV)-mediated strategy to immobilize Alg on solid surfaces. We demonstrate efficient Alg grafting onto carboxyl-, catechol-, polydopamine-, and tannic acid-functionalized surfaces via Zr(IV)-mediated cross-linking reactions. This strategy yields Alg multilayers that suppress fibroblast and platelet adhesion onto the solid surfaces. Furthermore, we show that the Alg multilayers can be selectively constructed on specific sites of solid surfaces. Given its ease of use and the wide selection of available carboxyl polymers, the current strategy is expected to be a useful tool for preparing functional polymer films for various applications.
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Affiliation(s)
- Yeonwoo Jeong
- Department of Chemistry and BK21 Plus Research Team, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
| | - Eunseok Kim
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Bum Seok Han
- Department of Chemistry and BK21 Plus Research Team, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
| | - Daewha Hong
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Sung Min Kang
- Department of Chemistry and BK21 Plus Research Team, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
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Peng F, Su HH, Ou XY, Ni ZF, Zong MH, Lou WY. Immobilization of Cofactor Self-Sufficient Recombinant Escherichia coli for Enantioselective Biosynthesis of ( R)-1-Phenyl-1,2-Ethanediol. Front Bioeng Biotechnol 2020; 8:17. [PMID: 32154222 PMCID: PMC7046757 DOI: 10.3389/fbioe.2020.00017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 01/09/2020] [Indexed: 11/18/2022] Open
Abstract
(R)-1-phenyl-1,2-ethanediol is an important synthon for the preparation of β-adrenergic blocking agents. This study identified a (2R,3R)-butanediol dehydrogenase (KgBDH) from Kurthia gibsonii SC0312, which showed high enantioselectivity for production of (R)-1-phenyl-1,2-ethanediol by reduction of 2-hydroxyacetophenone. KgBDH was expressed in a recombinant engineered strain, purified, and characterized. It showed good catalytic activity at pH 6–8 and better stability in alkaline (pH 7.5–8) than an acidic environment (pH 6.0–7.0), providing approximately 73 and 88% of residual activity after 96 h at pH 7.5 and 8.0, respectively. The maximum catalytic activity was obtained at 45°C; nevertheless, poor thermal stability was observed at >30°C. Additionally, the examined metal ions did not activate the catalytic activity of KgBDH. A recombinant Escherichia coli strain coexpressing KgBDH and glucose dehydrogenase (GHD) was constructed and immobilized via entrapment with a mixture of activated carbon and calcium alginate via entrapment. The immobilized cells had 1.8-fold higher catalytic activity than that of cells immobilized by calcium alginate alone. The maximum catalytic activity of the immobilized cells was achieved at pH 7.5, and favorable pH stability was observed at pH 6.0–9.0. Moreover, the immobilized cells showed favorable thermal stability at 25–30°C and better operational stability than free cells, retaining approximately 55% of the initial catalytic activity after four cycles. Finally, 81% yields (195 mM product) and >99% enantiomeric excess (ee) of (R)-1-phenyl-1,2-ethanediol were produced within 12 h through a fed-batch strategy with the immobilized cells (25 mg/ml wet cells) at 35°C and 180 rpm, with a productivity of approximately 54 g/L per day.
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Affiliation(s)
- Fei Peng
- Laboratory of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Hui-Hui Su
- Laboratory of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Xiao-Yang Ou
- Laboratory of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Zi-Fu Ni
- Laboratory of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Min-Hua Zong
- Laboratory of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Wen-Yong Lou
- Laboratory of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, Guangzhou, China
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Kim BJ, Choi JY, Choi H, Han S, Seo J, Kim J, Joo S, Kim HM, Oh C, Hong S, Kim P, Choi IS. Astrocyte-Encapsulated Hydrogel Microfibers Enhance Neuronal Circuit Generation. Adv Healthc Mater 2020; 9:e1901072. [PMID: 31957248 DOI: 10.1002/adhm.201901072] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 12/23/2019] [Indexed: 12/18/2022]
Abstract
Astrocytes, the most representative glial cells in the brain, play a multitude of crucial functions for proper neuronal development and synaptic-network formation, including neuroprotection as well as physical and chemical support. However, little attention has been paid, in the neuroregenerative medicine and related fields, to the cytoprotective incorporation of astrocytes into neuron-culture scaffolds and full-fledged functional utilization of encapsulated astrocytes for controlled neuronal development. In this article, a 3D neurosupportive culture system for enhanced induction of neuronal circuit generation is reported, where astrocytes are confined in hydrogel microfibers and protected from the outside. The astrocyte-encapsulated microfibers significantly accelerate the neurite outgrowth and guide its directionality, and enhance the synaptic formation, without any physical contact with the neurons. This astrocyte-laden system provides a pivotal culture scaffold for advanced development of cell-based therapeutics for neural injuries, such as spinal cord injury.
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Affiliation(s)
- Beom Jin Kim
- Center for Cell‐Encapsulation ResearchDepartment of ChemistryKAIST Daejeon 34141 Korea
| | - Ji Yu Choi
- Center for Cell‐Encapsulation ResearchDepartment of ChemistryKAIST Daejeon 34141 Korea
| | - Hyunwoo Choi
- Center for Cell‐Encapsulation ResearchDepartment of ChemistryKAIST Daejeon 34141 Korea
| | - Sol Han
- Center for Cell‐Encapsulation ResearchDepartment of ChemistryKAIST Daejeon 34141 Korea
| | - Jeongyeon Seo
- Center for Cell‐Encapsulation ResearchDepartment of ChemistryKAIST Daejeon 34141 Korea
| | - Jungnam Kim
- Center for Cell‐Encapsulation ResearchDepartment of ChemistryKAIST Daejeon 34141 Korea
| | - Sunghoon Joo
- Center for Cell‐Encapsulation ResearchDepartment of ChemistryKAIST Daejeon 34141 Korea
| | - Hyo Min Kim
- Department of Bio and Brain EngineeringKAIST Daejeon 34141 Korea
| | - Chungik Oh
- Department of Materials Science and EngineeringKAIST Daejeon 34141 Korea
| | - Seungbum Hong
- Department of Materials Science and EngineeringKAIST Daejeon 34141 Korea
| | - Pilnam Kim
- Department of Bio and Brain EngineeringKAIST Daejeon 34141 Korea
| | - Insung S. Choi
- Center for Cell‐Encapsulation ResearchDepartment of ChemistryKAIST Daejeon 34141 Korea
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36
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Bae JW, Seo HB, Belkin S, Gu MB. An optical detection module-based biosensor using fortified bacterial beads for soil toxicity assessment. Anal Bioanal Chem 2020; 412:3373-3381. [DOI: 10.1007/s00216-020-02469-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 01/20/2020] [Accepted: 01/29/2020] [Indexed: 11/28/2022]
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Asgari S, Pourjavadi A, Licht TR, Boisen A, Ajalloueian F. Polymeric carriers for enhanced delivery of probiotics. Adv Drug Deliv Rev 2020; 161-162:1-21. [PMID: 32702378 DOI: 10.1016/j.addr.2020.07.014] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 07/15/2020] [Accepted: 07/17/2020] [Indexed: 12/14/2022]
Abstract
Probiotics are live microorganisms (usually bacteria), which are defined by their ability to confer health benefits to the host, if administered adequately. Probiotics are not only used as health supplements but have also been applied in various attempts to prevent and treat gastrointestinal (GI) and non-gastrointestinal diseases such as diarrhea, colon cancer, obesity, diabetes, and inflammation. One of the challenges in the use of probiotics is putative loss of viability by the time of administration. It can be due to procedures that the probiotic products go through during fabrication, storage, or administration. Biocompatible and biodegradable polymers with specific moieties or pH/enzyme sensitivity have shown great potential as carriers of the bacteria for 1) better viability, 2) longer storage times, 3) preservation from the aggressive environment in the stomach and 4) topographically targeted delivery of probiotics. In this review, we focus on polymeric carriers and the procedures applied for encapsulation of the probiotics into them. At the end, some novel methods for specific probiotic delivery, possibilities to improve the targeted delivery of probiotics and some challenges are discussed.
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38
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Ji X, Chen X, Li H, Zhang J. Effects of carboxyl single-walled carbon nanotubes on synthetic wastewater nutrient removal by an algal-bacterial consortium: Regulation and interaction. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 685:997-1005. [PMID: 31390717 DOI: 10.1016/j.scitotenv.2019.06.257] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/16/2019] [Accepted: 06/16/2019] [Indexed: 06/10/2023]
Abstract
In this study, the morphology, ultrastructure, nutrient removal, metabolite levels, and interaction of an algal-bacterial consortium exposed to different concentrations of carboxylic single-walled carbon nanotubes (C-SWCNT) were investigated. At a C-SWCNT concentration of 0.05 mg·L-1, the removal rates of TN, NH3-N, PO43--P, and COD were 94.7%, 94.8%, 86.4% and 84.3%, respectively. When cells were exposed to 50 mg·L-1 C-SWCNT, its intracellular levels in individual algae and the algal-bacterial consortium were 23.6 μg·g-1 and 12.1 μg·g-1, respectively. C-SWCNT (0.05 mg·L-1) promoted the metabolism of fatty acids, amino acids, small molecules, and acid in the algal-bacterial consortium. The main response to the interaction of C-SWCNT and the consortium was the change in extracellular carbohydrate levels. C-SWCNT also increased chlorophyll a and glycine levels. These findings reveal new insights into our understanding of the biological responses and interactions between C-SWCNT and algal-bacterial consortium.
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Affiliation(s)
- Xiyan Ji
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, PR China
| | - Xinying Chen
- College of Engineering, China Agricultural University, Key Laboratory for Clean Renewable Energy Utilization Technology, Ministry of Agriculture, Beijing 100083, PR China
| | - Huimin Li
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, PR China
| | - Jibiao Zhang
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, PR China.
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Jusková P, Schmid YRF, Stucki A, Schmitt S, Held M, Dittrich PS. "Basicles": Microbial Growth and Production Monitoring in Giant Lipid Vesicles. ACS APPLIED MATERIALS & INTERFACES 2019; 11:34698-34706. [PMID: 31454223 PMCID: PMC7462352 DOI: 10.1021/acsami.9b12169] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 08/27/2019] [Indexed: 05/03/2023]
Abstract
We present an optimized protocol to encapsulate bacteria inside giant unilamellar lipid vesicles combined with a microfluidic platform for real-time monitoring of microbial growth and production. The microfluidic device allows us to immobilize the lipid vesicles and record bacterial growth and production using automated microscopy. Moreover, the lipid vesicles retain hydrophilic molecules and therefore can be used to accumulate products of microbial biosynthesis, which we demonstrate here for a riboflavin-producing bacterial strain. We show that stimulation as well as inhibition of bacterial production can be performed through the liposomal membrane simply by passive diffusion of inducing or antibiotic compounds, respectively. The possibility to introduce as well as accumulate compounds in liposomal cultivation compartments represents great advantage over the current state of the art systems, emulsion droplets, and gel beads. Additionally, the encapsulation of bacteria and monitoring of individual lipid vesicles have been accomplished on a single microfluidic device. The presented system paves the way toward highly parallel microbial cultivation and monitoring as required in biotechnology, basic research, or drug discovery.
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Affiliation(s)
- Petra Jusková
- Department
of Biosystems Science and Engineering, Bioanalytics Group, and Department of
Biosystems Science and Engineering, Bioprocess Laboratory, ETH Zürich, Mattenstrasse 26, CH-4058 Basel, Switzerland
| | - Yannick R. F. Schmid
- Department
of Biosystems Science and Engineering, Bioanalytics Group, and Department of
Biosystems Science and Engineering, Bioprocess Laboratory, ETH Zürich, Mattenstrasse 26, CH-4058 Basel, Switzerland
| | - Ariane Stucki
- Department
of Biosystems Science and Engineering, Bioanalytics Group, and Department of
Biosystems Science and Engineering, Bioprocess Laboratory, ETH Zürich, Mattenstrasse 26, CH-4058 Basel, Switzerland
| | - Steven Schmitt
- Department
of Biosystems Science and Engineering, Bioanalytics Group, and Department of
Biosystems Science and Engineering, Bioprocess Laboratory, ETH Zürich, Mattenstrasse 26, CH-4058 Basel, Switzerland
| | - Martin Held
- Department
of Biosystems Science and Engineering, Bioanalytics Group, and Department of
Biosystems Science and Engineering, Bioprocess Laboratory, ETH Zürich, Mattenstrasse 26, CH-4058 Basel, Switzerland
| | - Petra S. Dittrich
- Department
of Biosystems Science and Engineering, Bioanalytics Group, and Department of
Biosystems Science and Engineering, Bioprocess Laboratory, ETH Zürich, Mattenstrasse 26, CH-4058 Basel, Switzerland
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40
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Regulations of organism by materials: a new understanding of biological inorganic chemistry. J Biol Inorg Chem 2019; 24:467-481. [DOI: 10.1007/s00775-019-01673-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 05/19/2019] [Indexed: 10/26/2022]
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41
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Nalluri SR, Nagarjuna R, Patra D, Ganesan R, Balaji G. Large Scale Solid-state Synthesis of Catalytically Active Fe 3O 4@M (M = Au, Ag and Au-Ag alloy) Core-shell Nanostructures. Sci Rep 2019; 9:6603. [PMID: 31036893 PMCID: PMC6488626 DOI: 10.1038/s41598-019-43116-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 04/12/2019] [Indexed: 11/09/2022] Open
Abstract
Solvent-less synthesis of nanostructures is highly significant due to its economical, eco-friendly and industrially viable nature. Here we report a solid state synthetic approach for the fabrication of Fe3O4@M (where M = Au, Ag and Au-Ag alloy) core-shell nanostructures in nearly quantitative yields that involves a simple physical grinding of a metal precursor over Fe3O4 core, followed by calcination. The process involves smooth coating of low melting hybrid organic-inorganic precursor over the Fe3O4 core, which in turn facilitates a continuous shell layer post thermolysis. The obtained core-shell nanostructures are characterized using, XRD, XPS, ED-XRF, FE-SEM and HR-TEM for their phase, chemical state, elemental composition, surface morphology, and shell thickness, respectively. Homogeneous and continuous coating of the metal shell layer over a large area of the sample is ascertained by SAXS and STEM analyses. The synthesized catalysts have been studied for their applicability towards a model catalytic hydrogen generation from NH3BH3 and NaBH4 as hydrogen sources. The catalytic efficacy of the Fe3O4@Ag and Ag rich alloy shell materials are found to be superior to the corresponding Au counterparts. The saturation magnetization studies reveal the potential of the core-shell nanostructured catalysts to be magnetically recoverable and recyclable.
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Affiliation(s)
- Srinivasa Rao Nalluri
- Department of Chemistry, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, Hyderabad, 500078, India
| | - Ravikiran Nagarjuna
- Department of Chemistry, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, Hyderabad, 500078, India
| | - Dinabandhu Patra
- Department of Chemistry, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, Hyderabad, 500078, India
| | - Ramakrishnan Ganesan
- Department of Chemistry, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, Hyderabad, 500078, India.
| | - Gopalan Balaji
- Department of Chemistry, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, Hyderabad, 500078, India.
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Qi W, Liang X, Yun T, Guo W. Growth and survival of microencapsulated probiotics prepared by emulsion and internal gelation. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2019; 56:1398-1404. [PMID: 30956319 PMCID: PMC6423195 DOI: 10.1007/s13197-019-03616-w] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Revised: 01/03/2019] [Accepted: 01/29/2019] [Indexed: 12/27/2022]
Abstract
Efficient microencapsulation of probiotics by most existing methods is limited by low throughput. In this work, Saccharomyces boulardii and Enterococcus faecium were microencapsulated by a method based on emulsion and internal gelation. The growth and survival of microencapsulated microbes under different stressors were investigated using free non-encapsulated ones as a control. The results showed that the prepared micro-beads by emulsion and internal gelation exhibited a spherical and smooth shape, with sizes between 300 and 500 μm. Both S. boulardii and E. faecium grew well and survived better when encapsulated in micro-beads. The survival rates were increased 25% and 40% for microencapsulated S. boulardii and E. faecium respectively when compared with non-encapsulated controls under high temperature and high humidity. The increases of survival rates were 60% for microencapsulated S. boulardii and 25% for E. faecium in simulated gastric juice. And the increases were 15% and 20% respectively when the survival rates of the microencapsulated S. boulardii and E. faecium were determined in simulated intestinal juice. The microencapsulation by emulsion and internal gelation offers an effective way to protect microbes in adverse in vitro and in vivo conditions and is promising for the large-scale production of probiotics microencapsulation.
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Affiliation(s)
- Wentao Qi
- Cereals and Oils Nutrition Research Group, Academy of State Administration of Grain, No. 11 Baiwanzhuang Street, Beijing, 100037 People’s Republic of China
| | - Xinxiao Liang
- Cereals and Oils Nutrition Research Group, Academy of State Administration of Grain, No. 11 Baiwanzhuang Street, Beijing, 100037 People’s Republic of China
| | - Tingting Yun
- Cereals and Oils Nutrition Research Group, Academy of State Administration of Grain, No. 11 Baiwanzhuang Street, Beijing, 100037 People’s Republic of China
| | - Weiqun Guo
- Cereals and Oils Nutrition Research Group, Academy of State Administration of Grain, No. 11 Baiwanzhuang Street, Beijing, 100037 People’s Republic of China
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Pan HM, Chen S, Jang TS, Han WT, Jung HD, Li Y, Song J. Plant seed-inspired cell protection, dormancy, and growth for large-scale biofabrication. Biofabrication 2019; 11:025008. [PMID: 30708358 DOI: 10.1088/1758-5090/ab03ed] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Biofabrication technologies have endowed us with the capability to fabricate complex biological constructs. However, cytotoxic biofabrication conditions have been a major challenge for their clinical application, leading to a trade-off between cell viability and scalability of biofabricated constructs. Taking inspiration from nature, we proposed a cell protection strategy which mimicks the protected and dormant state of plant seeds in adverse external conditions and their germination in response to appropriate environmental cues. Applying this bioinspired strategy to biofabrication, we successfully preserved cell viability and enhanced the seeding of cell-laden biofabricated constructs via a cytoprotective pyrogallol (PG)-alginate encapsulation system. Our cytoprotective encapsulation technology utilizes PG-triggered sporulation and germination processes to preserve cells, is mechanically robust, chemically resistant, and highly customizable to adequately match cell protectability with cytotoxicity of biofabrication conditions. More importantly, the facile and tunable decapsulation of our PG-alginate system allows for effective germination of dormant cells, under typical culture conditions. With this approach, we have successfully achieved a biofabrication process which is reproducible, scalable, and provided a practical solution for off-the-shelf availability, shipping and temporary storage of fabricated bio-constructs.
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Affiliation(s)
- Houwen Matthew Pan
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, 639798, Singapore
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Zhang Z, Liu F, Xu Q, Zhu H, Zhu A, Kou J. Covalent Grafting Terbium Complex to Alginate Hydrogels and Their Application in Fe 3+ and pH Sensing. GLOBAL CHALLENGES (HOBOKEN, NJ) 2019; 3:1800067. [PMID: 31565360 PMCID: PMC6607234 DOI: 10.1002/gch2.201800067] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 10/26/2018] [Indexed: 05/30/2023]
Abstract
Biocompatible luminescent hydrogels containing covalently linked terbium complexes with a macrocyclic ligand are prepared by a facile method. The environmentally friendly preparation procedure is carried out at room temperature using water as a solvent. These new hybrid materials can act as luminescent sensors to detect Fe3+ with relative selectivity and high sensitivity. The hydrogels also show pH sensing with a wide range.
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Affiliation(s)
- Zeyu Zhang
- College of Chemistry and Chemical EngineeringYunnan Normal UniversityKunming650500China
| | - Fengyi Liu
- College of Chemistry and Chemical EngineeringYunnan Normal UniversityKunming650500China
| | - Quanqing Xu
- College of Chemistry and Chemical EngineeringYunnan Normal UniversityKunming650500China
| | - Han Zhu
- College of Chemistry and Chemical EngineeringYunnan Normal UniversityKunming650500China
| | - Aixin Zhu
- College of Chemistry and Chemical EngineeringYunnan Normal UniversityKunming650500China
| | - Junfeng Kou
- College of Chemistry and Chemical EngineeringYunnan Normal UniversityKunming650500China
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45
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Sui C, Preece JA, Yu SH, Zhang Z. Novel encapsulation of water soluble inorganic or organic ingredients in melamine formaldehyde microcapsules to achieve their sustained release in an aqueous environment. RSC Adv 2018; 8:29495-29498. [PMID: 35547310 PMCID: PMC9085263 DOI: 10.1039/c8ra05533e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 08/05/2018] [Indexed: 11/21/2022] Open
Abstract
A novel type of melamine formaldehyde microcapsule with a desirable barrier has been used to encapsulate water soluble ingredients, including potassium chloride (KCl) and allura red (dye) as models of an inorganic salt and organic molecule, respectively, via a facile method, and it has shown a sustained release of KCl and allura red for 12 h and 10 days in aqueous environment, respectively. A novel type of melamine formaldehyde microcapsule has been used to encapsulate water-soluble ingredients: potassium chloride (KCl) and allura red (dye), which achieved a sustained release for 12 h and 10 days in aqueous environment respectively.![]()
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Affiliation(s)
- Cong Sui
- School of Chemical Engineering, University of Birmingham UK .,Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation of Suzhou Nano Science and Technology, Department of Chemistry, CAS Centre for Excellence in Nanoscience, Hefei Science Centre of CAS, University of Science and Technology of China Hefei 230026 China
| | - Jon A Preece
- School of Chemistry, University of Birmingham Edgbaston Birmingham B15 2TT UK
| | - Shu-Hong Yu
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation of Suzhou Nano Science and Technology, Department of Chemistry, CAS Centre for Excellence in Nanoscience, Hefei Science Centre of CAS, University of Science and Technology of China Hefei 230026 China
| | - Zhibing Zhang
- School of Chemical Engineering, University of Birmingham UK
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Xu ZH, Cheng AD, Xing XP, Zong MH, Bai YP, Li N. Improved synthesis of 2,5-bis(hydroxymethyl)furan from 5-hydroxymethylfurfural using acclimatized whole cells entrapped in calcium alginate. BIORESOURCE TECHNOLOGY 2018; 262:177-183. [PMID: 29705609 DOI: 10.1016/j.biortech.2018.04.077] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 04/19/2018] [Accepted: 04/20/2018] [Indexed: 06/08/2023]
Abstract
Upgrading of biomass-derived 5-hydroxymethylfurfural (HMF) has attracted considerable interest recently. In this work, efficient synthesis of 2,5-bis(hydroxymethyl)furan (BHMF) from HMF was reported with the acclimatized Meyerozyma guilliermondii SC1103 cells entrapped in calcium alginate beads. Catalytic activities of the cells as well as their HMF-tolerant level increased significantly upon acclimatization and immobilization. BHMF was obtained within 7-24 h with good yields (82-85%) and excellent selectivities (99%) when the substrate concentrations were 200-300 mM. In scale-up synthesis, BHMF of up to 181 mM was produced within 7 h, and its productivity was approximately 3.3 g/L h. In addition, the immobilized biocatalyst showed satisfactory operational stability; the cell viability of 70% was retained after reuse 4 times. With rice straw hydrolysate as co-substrate, both the reaction rate and selectivity decreased, likely due to the deleterious influence of xylose in the hydrolysate.
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Affiliation(s)
- Zhong-Hua Xu
- School of Food Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China
| | - Ai-Di Cheng
- School of Food Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China
| | - Xu-Pu Xing
- School of Food Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China
| | - Min-Hua Zong
- School of Food Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China
| | - Yun-Peng Bai
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Ning Li
- School of Food Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China.
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Fang Z, Jiang R, Zhang L, Wu Y, Zhao X, Zhao L, Li J, Zou S, Zhang M, Du F. In situ fabrication of radiopaque microcapsules for oral delivery and real-time gastrointestinal tracking of Bifidobacterium. Int J Nanomedicine 2018; 13:4093-4105. [PMID: 30034235 PMCID: PMC6047607 DOI: 10.2147/ijn.s145837] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
INTRODUCTION Although oral administration of Bifidobacterium is a promising approach for diseases, lack of resistance to harsh conditions and real-time tracking in gastrointestinal system in vivo are still major challenges in basic research and clinical applications. MATERIALS AND METHODS In this study, we fabricated a chitosan-coated alginate microcapsule loaded with in situ synthesized barium sulfate (CA/BaSO4 microcapsule) for oral Bifidobacterium delivery and real-time X-ray computed tomography (CT) imaging. CA/BaSO4 microcapsules containing the Bifidobacterium were prepared in situ by one-step electrostatic spraying method, and then coated with chitosan. RESULTS The results indicated that CA/BaSO4 microcapsules with an average diameter of approximately 200 μm possessed favorable mechanical stability and X-ray attenuation capacity. Encapsulation of Bifidobacteria in the CA/BaSO4 microcapsules exhibited superior resistance to cryopreservation and gastric acid environment in vitro. After oral administration in mice, these CA/BaSO4 microcapsules could be real-time visualized by CT imaging and readily reached the intestine to release Bifidobacteria. CONCLUSION The radiopaque CA/BaSO4 microcapsules provide a novel platform for efficient protection, non-invasive real-time monitoring and intestinal-targeted Bifidobacterium delivery.
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Affiliation(s)
- Zhengzou Fang
- Department of Hepatosis, The Third Hospital of Zhenjiang Affiliated Jiangsu University,
| | - Rong Jiang
- School of Medicine, Jiangsu University, ;
| | - Lirong Zhang
- Department of Radiology, Affiliated Hospital of Jiangsu University
| | - Yunchao Wu
- School of Medicine, Jiangsu University, ;
| | | | - Lulu Zhao
- School of Medicine, Jiangsu University, ;
| | - Jiangang Li
- Tianyi Health Sciences Institute (Zhenjiang) Co., Ltd. Zhenjiang, People's Republic of China
| | - Shengqiang Zou
- Department of Hepatosis, The Third Hospital of Zhenjiang Affiliated Jiangsu University,
| | | | - Fengyi Du
- Department of Hepatosis, The Third Hospital of Zhenjiang Affiliated Jiangsu University,
- School of Medicine, Jiangsu University, ;
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48
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Kim BJ, Cho H, Park JH, Mano JF, Choi IS. Strategic Advances in Formation of Cell-in-Shell Structures: From Syntheses to Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1706063. [PMID: 29441678 DOI: 10.1002/adma.201706063] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 11/12/2017] [Indexed: 05/24/2023]
Abstract
Single-cell nanoencapsulation, forming cell-in-shell structures, provides chemical tools for endowing living cells, in a programmed fashion, with exogenous properties that are neither innate nor naturally achievable, such as cascade organic-catalysis, UV filtration, immunogenic shielding, and enhanced tolerance in vitro against lethal factors in real-life settings. Recent advances in the field make it possible to further fine-tune the physicochemical properties of the artificial shells encasing individual living cells, including on-demand degradability and reconfigurability. Many different materials, other than polyelectrolytes, have been utilized as a cell-coating material with proper choice of synthetic strategies to broaden the potential applications of cell-in-shell structures to whole-cell catalysis and sensors, cell therapy, tissue engineering, probiotics packaging, and others. In addition to the conventional "one-time-only" chemical formation of cytoprotective, durable shells, an approach of autonomous, dynamic shellation has also recently been attempted to mimic the naturally occurring sporulation process and to make the artificial shell actively responsive and dynamic. Here, the recent development of synthetic strategies for formation of cell-in-shell structures along with the advanced shell properties acquired is reviewed. Demonstrated applications, such as whole-cell biocatalysis and cell therapy, are discussed, followed by perspectives on the field of single-cell nanoencapsulation.
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Affiliation(s)
- Beom Jin Kim
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, Korea
| | - Hyeoncheol Cho
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, Korea
| | - Ji Hun Park
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, Korea
| | - João F Mano
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Insung S Choi
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, Korea
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Qiu S, Ma C, Wang X, Zhou X, Feng X, Yuen RKK, Hu Y. Melamine-containing polyphosphazene wrapped ammonium polyphosphate: A novel multifunctional organic-inorganic hybrid flame retardant. JOURNAL OF HAZARDOUS MATERIALS 2018; 344:839-848. [PMID: 29190581 DOI: 10.1016/j.jhazmat.2017.11.018] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 10/24/2017] [Accepted: 11/09/2017] [Indexed: 05/24/2023]
Abstract
To achieve superior fire safety epoxy resins (EP), a novel multifunctional organic-inorganic hybrid, melamine-containing polyphosphazene wrapped ammonium polyphosphate (PZMA@APP) with rich amino groups was prepared and used as an efficient flame retardant. Thanks to the cross-linked polyphosphazene part, PZMA@APP exhibited high flame retardant efficiency and smoke suppression to the EP composites. Thermogravimetric analysis indicated that PZMA@APP significantly enhanced the thermal stability of EP composites. The obtained sample passed UL-94 V-0 rating with 10.0wt% addition of PZMA@APP. Notably, inclusion of incorporating PZMA@APP leads to significantly decrease on fire hazards of EP, for instance, bring about a 75.6% maximum decrease in peak heat release rate and 65.9% maximum reduction in total heat release, accompanied with lower smoke production rate and higher graphitized char layer. With regards to mechanical property, the glass transition temperature of EP/PZMA@APP10.0 was as high as 184.5°C. In particular, the addition of PZMA@APP did not worsen the mechanical properties, compared to pure APP. It was confirmed that the participation of melamine-containing polyphosphazene could significantly enhance the quality of char layer and thereby resulting the higher flame retardant efficiency of PZMA@APP.
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Affiliation(s)
- Shuilai Qiu
- State Key Laboratory of Fire Science, University of Science and Technology of China,96 Jinzhai Road, Hefei, Anhui, 230026, PR China; Department of Architecture and Civil Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| | - Chao Ma
- State Key Laboratory of Fire Science, University of Science and Technology of China,96 Jinzhai Road, Hefei, Anhui, 230026, PR China
| | - Xin Wang
- State Key Laboratory of Fire Science, University of Science and Technology of China,96 Jinzhai Road, Hefei, Anhui, 230026, PR China.
| | - Xia Zhou
- State Key Laboratory of Fire Science, University of Science and Technology of China,96 Jinzhai Road, Hefei, Anhui, 230026, PR China
| | - Xiaming Feng
- State Key Laboratory of Fire Science, University of Science and Technology of China,96 Jinzhai Road, Hefei, Anhui, 230026, PR China; Department of Architecture and Civil Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| | - Richard K K Yuen
- Department of Architecture and Civil Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| | - Yuan Hu
- State Key Laboratory of Fire Science, University of Science and Technology of China,96 Jinzhai Road, Hefei, Anhui, 230026, PR China.
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50
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Geng W, Wang L, Jiang N, Cao J, Xiao YX, Wei H, Yetisen AK, Yang XY, Su BL. Single cells in nanoshells for the functionalization of living cells. NANOSCALE 2018; 10:3112-3129. [PMID: 29393952 DOI: 10.1039/c7nr08556g] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Inspired by the characteristics of cells in live organisms, new types of hybrids have been designed comprising live cells and abiotic materials having a variety of structures and functionalities. The major goal of these studies is to uncover hybridization approaches that promote cell stabilization and enable the introduction of new functions into living cells. Single-cells in nanoshells have great potential in a large number of applications including bioelectronics, cell protection, cell therapy, and biocatalysis. In this review, we discuss the results of investigations that have focused on the synthesis, structuration, functionalization, and applications of these single-cells in nanoshells. We describe synthesis methods to control the structural and functional features of single-cells in nanoshells, and further develop their applications in sustainable energy, environmental remediation, green biocatalysis, and smart cell therapy. Perceived limitations of single-cells in nanoshells have been also identified.
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Affiliation(s)
- Wei Geng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122, Luoshi Road, Wuhan, 430070, China.
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