1
|
Davari N, Nourmohammadi J, Mohammadi J. Nitric oxide-releasing thiolated starch nanoparticles embedded in gelatin sponges for wound dressing applications. Int J Biol Macromol 2024; 265:131062. [PMID: 38521307 DOI: 10.1016/j.ijbiomac.2024.131062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 03/03/2024] [Accepted: 03/20/2024] [Indexed: 03/25/2024]
Abstract
This study introduces a novel wound dressing by combining nitric oxide-releasing thiolated starch nanoparticles (NO-TS NPs) with gelatin. First, starch was thiolated (TS), and then its nanoparticles were prepared (TS NPs). Subsequently, NPs were covalently bonded to sodium nitrite to obtain NO-releasing TS NPs (NO-TS-NPs) that were incorporated into gelatin sponges at various concentrations. The resulting spherical TS NPs had a mean size of 85.42 ± 5.23 nm, which rose to 100.73 ± 7.41 nm after bonding with sodium nitrite. FTIR spectroscopy confirmed S-nitrosation on the NO-TS NPs' surface, and morphology analysis showed well-interconnected pores in all sponges. With higher NO-TS NPs content, pore size, porosity, and water uptake increased, while compressive modulus and strength decreased. Composites exhibited antibacterial activity, particularly against E. coli, with enhanced efficacy at higher NPs' concentrations. In vitro release studies demonstrated Fickian diffusion, with faster NO release in sponges containing more NPs. The released NO amounts were non-toxic to fibroblasts, but samples with fewer NO-TS NPs exhibited superior cellular density, cell attachment, and collagen secretion. Considering the results, including favorable mechanical strength, release behavior, antibacterial and cellular properties, gelatin sponges loaded with 2 mg/mL of NO-TS NPs can be suitable for wound dressing applications.
Collapse
Affiliation(s)
- Niyousha Davari
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 143951561, Iran
| | - Jhamak Nourmohammadi
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 143951561, Iran.
| | - Javad Mohammadi
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 143951561, Iran
| |
Collapse
|
2
|
Garren M, Ashcraft M, Crowley D, Brisbois EJ, Handa H. Derivatization of graphene oxide nanosheets with tunable nitric oxide release for antibacterial biomaterials. J Biomed Mater Res A 2023; 111:451-464. [PMID: 36594584 PMCID: PMC9936865 DOI: 10.1002/jbm.a.37493] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/15/2022] [Accepted: 12/20/2022] [Indexed: 01/04/2023]
Abstract
Graphene oxide (GO) nanosheets are a promising class of carbon-based materials suitable for application in the construction of medical devices. These materials have inherent antimicrobial properties based on sheet size, but these effects must be carefully traded off to maintain biocompatibility. Chemical modification of functional groups to the lattice structure of GO nanosheets enables unique opportunities to introduce new surface properties to bolster biological effects. Herein, we have developed nitric oxide (NO)-releasing GO nanosheets via immobilization of S-nitrosothiol (RSNO) moieties to GO nanosheets (GO-[NH]x -SNO). These novel RSNO-based GO nanosheets were characterized for chemical functionality via Fourier transform infrared spectroscopy, x-ray photoelectron spectroscopy, and colorimetric assays for functional group quantification. Stoichiometric control of the available RSNO groups functionalized onto the nanosheets was studied using chemiluminescence-based NO detection methods, showing highly tunable NO release kinetics. Studies of electrical stimulation and subsequent electrochemical reduction of the nanosheets demonstrated further tunability of the NO release based on stimuli. Finally, nanosheets were evaluated for cytotoxicity and antibacterial effects, showing strong cytocompatibility with human fibroblasts in parallel to broad antibacterial and anti-biofilm effects against both Gram-positive and Gram-negative strains. In summary, derivatized GO-(NH)x -SNO nanosheets were shown to have tunable NO release properties, enabling application-specific tailoring for diverse biomedical applications such as antimicrobial coatings and composite fillers for stents, sensors, and other medical devices.
Collapse
Affiliation(s)
- Mark Garren
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia, USA
| | - Morgan Ashcraft
- Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, Athens, Georgia, USA
| | - Dagney Crowley
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia, USA
| | - Elizabeth J. Brisbois
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia, USA
| | - Hitesh Handa
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia, USA
- Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, Athens, Georgia, USA
| |
Collapse
|
3
|
Huang W, Zhang J, Luo L, Yu Y, Sun T. Nitric Oxide and Tumors: From Small-Molecule Donor to Combination Therapy. ACS Biomater Sci Eng 2023; 9:139-152. [PMID: 36576226 DOI: 10.1021/acsbiomaterials.2c01247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
As an important endogenous signaling molecule, nitric oxide (NO) is involved in various physiological and pathological activities in living organisms. It is proved that NO plays a critical role in tumor therapy, while the extremely short half-life and nonspecific distribution of NO greatly limit its further clinical applications. Thus, the past few decades have witnessed the progress made in conquering these shortcomings, including developing innovative NO donors, especially smart and multimodal nanoplatforms. These platforms can precisely control the spatiotemporal distribution of therapeutic agents in the organism, which make big differences in tumor treatment. Here current NO therapeutic mechanisms for cancer, NO donors from small molecules to smart-responsive nanodrug delivery platforms, and NO-based combination therapy are comprehensively reviewed, emphasizing outstanding breakthroughs in these fields and hoping to bring new insights into NO-based tumor treatments.
Collapse
Affiliation(s)
- Wan Huang
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
| | - Jun Zhang
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
| | - Li Luo
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
| | - Yao Yu
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
| | - Taolei Sun
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China.,State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
| |
Collapse
|
4
|
Ghalei S, Douglass M, Handa H. Nitric Oxide-Releasing Nanofibrous Scaffolds Based on Silk Fibroin and Zein with Enhanced Biodegradability and Antibacterial Properties. ACS Biomater Sci Eng 2022; 8:3066-3077. [PMID: 35704780 DOI: 10.1021/acsbiomaterials.2c00103] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Clinical applications of scaffolds and implants have been associated with bacterial infection resulting in impaired tissue regeneration. Nanofibers provide a versatile structure for both antimicrobial molecule delivery and tissue engineering. In this study, the nitric oxide (NO) donor molecule S-nitrosoglutathione (GSNO) and the natural biodegradable polymer zein (ZN) were combined with silk fibroin (SF) to develop antibacterial and biodegradable nanofibrous scaffolds for tissue engineering applications. The compatibility and intermolecular interactions of SF and ZN were studied using differential scanning calorimetry and Fourier transform infrared spectroscopy. The incorporation of ZN increased the hydrophobicity of the fibers and resulted in a more controlled and prolonged NO release profile lasting for 48 h. Moreover, the degradation kinetics of the fibers was significantly improved after blending with ZN. The results of tensile testing indicated that the addition of ZN and GSNO had a positive effect on the strength and stretchability of SF fibers and did not adversely affect their mechanical properties. Finally, due to the antibacterial properties of both NO and ZN, the SF-ZN-GSNO fibers showed a synergistically high antibacterial efficacy with 91.6 ± 2.5% and 77.5 ± 3.1% reduction in viability of adhered Staphylococcus aureus and Escherichia coli after 24 h exposure, respectively. The developed NO-releasing fibers were not only antibacterial but also non-cytotoxic and successfully enhanced the proliferation and growth of fibroblast cells, which was quantitatively studied by a CCK-8 assay and visually observed through fluorescent staining. Overall, SF-ZN-GSNO fibers developed in this study were biodegradable and highly antibacterial and showed great cytocompatibility with fibroblasts, indicating their promising potential for a range of tissue engineering and medical device applications.
Collapse
Affiliation(s)
- Sama Ghalei
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia 30605, United States
| | - Megan Douglass
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia 30605, United States
| | - Hitesh Handa
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia 30605, United States.,Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, Athens, Georgia 30605, United States
| |
Collapse
|
5
|
Fasiku VO, Omolo CA, Kiruri LW, Devnarain N, Faya M, Mocktar C, Govender T. A hyaluronic acid-based nanogel for the co-delivery of nitric oxide (NO) and a novel antimicrobial peptide (AMP) against bacterial biofilms. Int J Biol Macromol 2022; 206:381-397. [PMID: 35202637 DOI: 10.1016/j.ijbiomac.2022.02.099] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 02/01/2022] [Accepted: 02/16/2022] [Indexed: 02/06/2023]
Abstract
Biofilms are a global health concern because they are associated with chronic and recurrent infections as well as resistance to conventional antibiotics. The aim of this study was to prepare a nanogel for the co-delivery of NO and AMPs against bacteria and biofilms. The NO-releasing nanogel was prepared by crosslinking HA solution with divinyl sulfone and extensively characterized. The nanogel was found to be biocompatible, injectable and NO release from the gel was sustained over a period of 24 h. In vitro antibacterial studies showed that the NO-AMP-loaded nanogel exhibited a broad spectrum antibacterial/antibiofilm activity. The NO-releasing nanogel had a greater antibacterial effect when compared to NO alone with MIC values of 1.56, 0.78 and 0.39 μg/ml against Escherichia coli, Methicillin-resistant Staphylococcus aureus and Pseudomonas aeruginosa bacteria respectively. The antibiofilm results showed there was a 12.5 and 24-folds reduction in biofilms of MRSA, and P. aeruginosa respectively for catheters exposed to nanogel loaded with AMP/NO when compared to only NO, while a 7 and 9.4-folds reduction in biofilms of MRSA, and P. aeruginosa respectively was displayed by the nanogel loaded with only NO compared to only NO. The AMP/NO-releasing nanogel showed the potential to combat both biofilms and bacterial infections.
Collapse
Affiliation(s)
- Victoria O Fasiku
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa
| | - Calvin A Omolo
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa; United States International University-Africa, School of Pharmacy and Health Sciences, Department of Pharmaceutics, P. O. Box 14634-00800, Nairobi, Kenya
| | - Lucy W Kiruri
- Department of Chemistry, Kenyatta University, P. O. Box 43844 - 00100, Nairobi, Kenya
| | - Nikita Devnarain
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa
| | - Mbuso Faya
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa
| | - Chunderika Mocktar
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa
| | - Thirumala Govender
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa.
| |
Collapse
|
6
|
Massoumi H, Kumar R, Chug MK, Qian Y, Brisbois EJ. Nitric Oxide Release and Antibacterial Efficacy Analyses of S-Nitroso- N-Acetyl-Penicillamine Conjugated to Titanium Dioxide Nanoparticles. ACS APPLIED BIO MATERIALS 2022; 5:2285-2295. [PMID: 35443135 PMCID: PMC9721035 DOI: 10.1021/acsabm.2c00131] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Therapeutic agents can be linked to nanoparticles to fortify their selectivity and targeted delivery while impeding systemic toxicity and efficacy loss. Titanium dioxide nanoparticles (TiNPs) owe their rise in biomedical sciences to their versatile applicability, although the lack of inherent antibacterial properties limits its application and necessitates the addition of bactericidal agents along with TiNPs. Structural modifications can improve TiNP's antibacterial impact. The antibacterial efficacy of nitric oxide (NO) against a broad spectrum of bacterial strains is well established. For the first time, S-nitroso-N-acetylpenicillamine (SNAP), an NO donor molecule, was covalently immobilized on TiNPs to form the NO-releasing TiNP-SNAP nanoparticles. The TiNPs were silanized with 3-aminopropyl triethoxysilane, and N-acetyl-d-penicillamine was grafted to them via an amide bond. The nitrosation was carried out by t-butyl nitrite to conjugate the NO-rich SNAP moiety to the surface. The total NO immobilization was measured to be 127.55 ± 4.68 nmol mg-1 using the gold standard chemiluminescence NO analyzer. The NO payload can be released from the TiNP-SNAP under physiological conditions for up to 20 h. The TiNP-SNAP exhibited a concentration-dependent antimicrobial efficiency. At 5 mg mL-1, more than 99.99 and 99.70% reduction in viable Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli bacteria, respectively, were observed. No significant cytotoxicity was observed against 3T3 mouse fibroblast cells at all the test concentrations determined by the CCK-8 assay. TiNP-SNAP is a promising and versatile nanoparticle that can significantly impact the usage of TiNPs in a wide variety of applications, such as biomaterial coatings, tissue engineering scaffolds, or wound dressings.
Collapse
Affiliation(s)
- Hamed Massoumi
- School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens 30602, United States
| | - Rajnish Kumar
- School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens 30602, United States
| | - Manjyot Kaur Chug
- School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens 30602, United States
| | - Yun Qian
- School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens 30602, United States
| | - Elizabeth J Brisbois
- School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens 30602, United States
| |
Collapse
|
7
|
Ghalei S, Handa H. A Review on Antibacterial Silk Fibroin-based Biomaterials: Current State and Prospects. MATERIALS TODAY. CHEMISTRY 2022; 23:100673. [PMID: 34901586 PMCID: PMC8664245 DOI: 10.1016/j.mtchem.2021.100673] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Bacterial contamination of biomaterials is a common problem and a serious threat to human health worldwide. Therefore, the development of multifunctional biomaterials that possess antibacterial properties and can resist infection is a continual goal for biomedical applications. Silk fibroin (SF), approved by U.S. Food and Drug Administration (FDA) as a biomaterial, is one of the most widely studied natural polymers for biomedical applications due to its unique mechanical properties, biocompatibility, tunable biodegradation, and versatile material formats. In the last decade, many methods have been employed for the development of antibacterial SF-based biomaterials (SFBs) such as physical loading or chemical functionalization of SFBs with different antibacterial agents and bio-inspired surface modifications. In this review, we first describe the current understanding of the composition and structure-properties relationship of SF as a leading-edge biomaterial. Then we demonstrate the different antibacterial agents and methods implemented for the development of bactericidal SFBs, their mechanisms of action, and different applications. We briefly address their fabrication methods, advantages, and limitations, and finally discuss the emerging technologies and future trends in this research area.
Collapse
Affiliation(s)
- Sama Ghalei
- School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens 30602, United States
| | - Hitesh Handa
- School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens 30602, United States
| |
Collapse
|
8
|
Magnetothermally-responsive nanocarriers using confined phosphorylated halloysite nanoreactor for in situ iron oxide nanoparticle synthesis: A MW-assisted solvothermal approach. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.128116] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
9
|
Ghalei S, Douglass M, Handa H. Nitric Oxide-Releasing Gelatin Methacryloyl/Silk Fibroin Interpenetrating Polymer Network Hydrogels for Tissue Engineering Applications. ACS Biomater Sci Eng 2021; 8:273-283. [PMID: 34890206 DOI: 10.1021/acsbiomaterials.1c01121] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Bacterial infection is one of the principal reasons for the failure of tissue engineering scaffolds. Therefore, the development of multifunctional scaffolds that not only are able to guide tissue regeneration but also can inhibit bacterial colonization is of great importance for tissue engineering applications. In this study, a highly antibacterial, biocompatible, and biodegradable scaffold based on silk fibroin (SF) and gelatin methacryloyl (GelMA) was prepared. Sequential cross-linking of GelMA and SF under UV irradiation and methanol treatment, respectively, resulted in the formation of interpenetrating network (IPN) hydrogels with a porous structure. In addition, impregnation of the hydrogels with a nitric oxide (NO) donor molecule, S-nitroso-N-acetylpenicillamine (SNAP), led to the development of NO-releasing scaffolds with strong antibacterial properties. According to the obtained results, the addition of SF to GelMA hydrogels caused an enhancement in the mechanical properties and NO release kinetics and prevented their rapid enzymatic degradation in aqueous media. Furthermore, swelling the GelMA-SF scaffolds with SNAP resulted in a bacteria reduction efficiency of >99.9% against Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria. The scaffolds also showed great cytocompatibility in vitro by increasing the proliferation and supporting the adhesion of 3T3 mouse fibroblast cells. Overall, GelMA-SF-SNAP showed great promise to be used as a scaffold for tissue engineering and wound healing applications.
Collapse
Affiliation(s)
- Sama Ghalei
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia 30602, United States
| | - Megan Douglass
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia 30602, United States
| | - Hitesh Handa
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia 30602, United States.,Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, Athens, Georgia 30602, United States
| |
Collapse
|
10
|
Toledano-Magaña Y, Flores-Santos L, Montes de Oca G, González-Montiel A, García-Ramos JC, Mora C, Saavedra-Ávila NA, Gudiño-Zayas M, González-Ramírez LC, Laclette JP, Carrero JC. Toxicological Evaluations in Macrophages and Mice Acutely and Chronically Exposed to Halloysite Clay Nanotubes Functionalized with Polystyrene. ACS OMEGA 2021; 6:29882-29892. [PMID: 34778661 PMCID: PMC8582073 DOI: 10.1021/acsomega.1c04367] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 10/14/2021] [Indexed: 06/13/2023]
Abstract
Halloysite clay nanotubes (HNTs) have been proposed as highly biocompatible for several biomedical applications. Various polymers have been used to functionalize HNTs, but scarce information exists about polystyrene for this purpose. This work evaluated polystyrene-functionalized HNTs (FHNTs) by comparing its effects with non-FHNTs and innocuous talc powder on in vitro and in vivo models. Monocyte-derived human or murine macrophages and the RAW 264.7 cell line were treated with 0.01, 0.1, 1, and 100 μg mL-1 FHNTs, HNTs, or talc to evaluate the cytotoxic and cytokine response. Our results show that nanoclays did not cause cytotoxic damage to macrophages. Only the 100 μg mL-1 concentration induced slight proinflammatory cytokine production at short exposure, followed by an anti-inflammatory response that increases over time. CD1 mice treated with a single dose of 1, 2.5, or 5 mg Kg-1 of FHNTs or HNTs by oral and inhalation routes caused aluminum accumulation in the kidneys and lungs, without bodily signs of distress or histopathological changes in any treated mice, evaluated at 48 h and 30 days post-treatment. Nanoclay administration simultaneously by four different parenteral routes (20 mg Kg-1) or the combination of administration routes (parenteral + oral or parenteral + inhalation; 25 mg Kg-1) showed accumulation on the injection site and slight surrounding inflammation 30 days post-treatment. CD1 mice chronically exposed to HNTs or FHNTs in the bedding material (ca 1 mg) throughout the parental generation and two successive inbred generations for 8 months did not cause any inflammatory process or damage to the abdominal organs and the reproductive system of the mice of any of the generations, did not affect the number of newborn mice and their survival, and did not induce congenital malformations in the offspring. FHNTs showed a slightly less effect than HNTs in all experiments, suggesting that functionalization makes them less cytotoxic. Doses of up to 25 mg Kg-1 by different administration routes and permanent exposure to 1 mg of HNTs or FHNTs for 8 months seem safe for CD1 mice. Our in vivo and in vitro results indicate that nanoclays are highly biocompatible, supporting their possible safe use for future biomedical and general-purpose applications.
Collapse
Affiliation(s)
- Yanis Toledano-Magaña
- Escuela
de Ciencias de la Salud, Universidad Autónoma
de Baja California, Ensenada, Baja California 22890, México
| | | | - Georgina Montes de Oca
- CIATEQ
Centro de Tecnología Avanzada, Circuito de la Industria Pte Lte 11 Mza 3 No 11, Parque Industrial
Ex Hacienda Doña Rosa, Lerma Edo de
México 52004, México
| | | | - Juan-Carlos García-Ramos
- Escuela
de Ciencias de la Salud, Universidad Autónoma
de Baja California, Ensenada, Baja California 22890, México
| | - Conchi Mora
- Immunology
Unit, Department of Experimental Medicine, Faculty of Medicine, University of Lleida, Lleida 25002, Spain
- Institut
de Recerca Biomèdica Lleida (IRB-Lleida), Lleida 25002, Spain
| | | | - Marco Gudiño-Zayas
- Laboratorio
de Bioinformática, Unidad de Investigación en Medicina
Experimental, Facultad de Medicina, UNAM, Ciudad de México 06720, México
| | - Luisa-Carolina González-Ramírez
- Grupo
de Investigación “Análisis de Muestras Biológicas
y Forenses”, Carrera Laboratorio Clínico, Facultad de
Ciencias de la Salud, Universidad Nacional
de Chimborazo, Riobamba 0601003, Ecuador
| | - Juan P. Laclette
- Departamento
de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México,
Cd. Universitaria, Ciudad de México 04510, México
| | - Julio C. Carrero
- Departamento
de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México,
Cd. Universitaria, Ciudad de México 04510, México
| |
Collapse
|
11
|
Xue Q, Wang C, Lin Y, Jiang TF, Lv Z. Determination of fluoroquinolones illegally added in traditional prostate medicines by ultrasonic-assisted dispersive liquid liquid micro-extraction based on deep eutectic solvent combined with quantitative 19F nuclear magnetic resonance method. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
12
|
He K, Shen Z, Chen Z, Zheng B, Cheng S, Hu J. Visible light-responsive micelles enable co-delivery of nitric oxide and antibiotics for synergistic antibiofilm applications. Polym Chem 2021. [DOI: 10.1039/d1py01137e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Tetraphenylethylene (TPE) moieties have been employed as a light-absorbing antenna for the activation of photoresponsive N-nitrosamine derivatives, enabling visible light-triggered NO release and efficient biofilm dispersal.
Collapse
Affiliation(s)
- Kewu He
- Imaging Center of the Third Affiliated Hospital of Anhui Medical University, Hefei 230031, Anhui, P. R. China
| | - Zhiqiang Shen
- Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Zhenhua Chen
- Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Bin Zheng
- School of Chemistry and Chemical Engineering, Hefei Normal University, Hefei, Anhui 230061, P. R. China
| | - Sheng Cheng
- Instrumental Analysis Center, Hefei University of Technology, Hefei, Anhui 230009, P. R. China
| | - Jinming Hu
- Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| |
Collapse
|