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Zong B, Li X, Xu Q, Wang D, Gao P, Zhou Q. Enhanced Eradication of Enterococcus faecalis Biofilms by Quaternized Chitosan-Coated Upconversion Nanoparticles for Photodynamic Therapy in Persistent Endodontic Infections. Front Microbiol 2022; 13:909492. [PMID: 35711785 PMCID: PMC9195144 DOI: 10.3389/fmicb.2022.909492] [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: 03/31/2022] [Accepted: 04/25/2022] [Indexed: 11/13/2022] Open
Abstract
Due to the persistent presence of Enterococcus faecalis biofilms in apical root canals, persistent endodontic infections (PEIs) have always been an intractable disease to solve. The conventional root canal disinfectants (e.g., calcium hydroxide, chlorhexidine) are arduous to scavenge the stubborn infection. With the progress of nanomedicine in the biomedical field, antimicrobial photodynamic therapy (aPDT) is emerging as a prospective anti-infective therapy for PEIs. Herein, quaternized chitosan (QCh) modified upconversion nanoparticles (UCNP)@SiO2/methylene blue (MB) are developed with enhanced antibacterial/biofilm performance for aPDT in PEIs. QCh is coated on the UCNP@SiO2/MB by testing the changes in diameter, chemical functional group, and charge. Interestingly, QCh also increases the conversion efficiency of UCNP to generate more reactive oxygen species (ROS). Furthermore, the prepared UCNP@SiO2/MB@QCh exhibits highly effective antibacterial activity against free E. faecalis and related biofilm in vitro and extracted teeth. Importantly, the additional QCh with positive charges enhance UCNP@SiO2/MB@QCh contact with E. faecalis (negative charges) through electrostatic interaction. Then, UCNP@SiO2/MB@QCh could stick close to the E. faecalis and generate ROS under the irradiation by a 980 nm laser. The in vitro cellular test shows that UCNP@SiO2/MB@QCh has acceptable cytocompatibility. Thus, UCNP@SiO2/MB@QCh could offer a novel strategy for the potential aPDT clinical applications in the treatment of PEIs.
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Affiliation(s)
- Bin Zong
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China.,School of Stomatology, Qingdao University, Qingdao, China
| | - Xue Li
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China.,School of Stomatology, Qingdao University, Qingdao, China
| | - Quanchen Xu
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China.,School of Stomatology, Qingdao University, Qingdao, China
| | - Danyang Wang
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China.,School of Stomatology, Qingdao University, Qingdao, China.,Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Pengyu Gao
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China.,School of Stomatology, Qingdao University, Qingdao, China
| | - Qihui Zhou
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China.,School of Stomatology, Qingdao University, Qingdao, China.,Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
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2
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Keyvan Rad J, Balzade Z, Mahdavian AR. Spiropyran-based advanced photoswitchable materials: A fascinating pathway to the future stimuli-responsive devices. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C: PHOTOCHEMISTRY REVIEWS 2022. [DOI: 10.1016/j.jphotochemrev.2022.100487] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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3
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Lu E, Pichaandi J, Rastogi CK, Winnik MA. Effect of Excess Ligand on the Reverse Microemulsion Silica Coating of NaLnF 4 Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:3316-3326. [PMID: 35231171 DOI: 10.1021/acs.langmuir.2c00372] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Silica coating of inorganic nanoparticles (NPs) is widely employed as a means of providing colloidal stability in aqueous media and surface functionality for a variety of applications, particularly in biology. When the NPs are synthesized with a surface coating of an organic surfactant like oleic acid, silica coating is performed by using the reverse microemulsion method. There are many reports in the literature of the successful application of this method to NaYF4 upconversion NPs (doped with Yb and Er), and we have used this method to coat NaHoF4 NPs designed as a mass cytometry reagent. This method failed when we attempted to apply it to other NaLnF4 NPs (Ln = Sm, Eu, Tb). In this report we describe an investigation of the problem and show how it can be overcome. To control size in the synthesis of NaLnF4 NPs and at the same time maintain size uniformity, it is necessary to adjust the Na/F and F/Ln ratios. Problems with silica coating are associated with substoichiometric F/Ln ratios (F/Ln < 4) that leave Ln oleate salts as a byproduct, often as a phase-separated oily layer that could not be purified from the NPs by precipitation with ethanol and redispersion in hexanes. The nature of the oily byproduct was inferred from a combination of TGA, NMR, and FTIR measurements. We explored five different additional purification procedures, and by adopting the appropriate purification method, NaLnF4 NPs with a variety of compositions and synthesized using different reaction conditions could be coated with a thin shell of silica.
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Affiliation(s)
- Elsa Lu
- Department of Chemistry, University of Toronto, 80 St George Street, Toronto, Ontario M5S 3H6, Canada
| | | | - Chandresh Kumar Rastogi
- Department of Chemistry, University of Toronto, 80 St George Street, Toronto, Ontario M5S 3H6, Canada
| | - Mitchell A Winnik
- Department of Chemistry, University of Toronto, 80 St George Street, Toronto, Ontario M5S 3H6, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada
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4
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Cheng Q, Xu M, Sun C, Yang K, Yang Z, Li J, Zheng J, Zheng Y, Wang R. Enhanced antibacterial function of a supramolecular artificial receptor-modified macrophage (SAR-Macrophage). MATERIALS HORIZONS 2022; 9:934-941. [PMID: 35037009 DOI: 10.1039/d1mh01813b] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Bacterial infection has become a global concern owing to the significant morbidity and mortality. Although the phagocytosis of bacteria by immune cells acts as the front line to protect human body from invading pathogens, the relatively slow encounter and insufficient capture of bacteria by immune cells often lead to an inefficient clearance of pathogens. Herein, a supramolecular artificial receptor-modified macrophage (SAR-Macrophage) was developed to enhance the recognition and latch of bacteria in the systemic circulation, mediated via strong and multipoint host-guest interactions between the artificial receptors (cucurbit[7]uril) on the macrophage and the guest ligands (adamantane) selectively anchored on Escherichia coli (E. coli). As a result, the SAR-Macrophage could significantly accelerate the recognition of E. coli, catch and internalize more pathogens, which subsequently induced the M1 polarization of macrophages to generate ROS and effectively kill the intracellular bacteria. Therefore, the SAR-Macrophage represents a simple, yet powerful anti-bacterial approach.
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Affiliation(s)
- Qian Cheng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China.
| | - Meng Xu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China.
| | - Chen Sun
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China.
| | - Kuikun Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China.
| | - Zhiqing Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China.
| | - Junyan Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China.
| | - Jun Zheng
- Department of Pharmaceutical Sciences, Faculty of Health Sciences, University of Macau, Taipa, Macau 999078, China
| | - Ying Zheng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China.
- Department of Pharmaceutical Sciences, Faculty of Health Sciences, University of Macau, Taipa, Macau 999078, China
| | - Ruibing Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau 999078, China.
- Department of Pharmaceutical Sciences, Faculty of Health Sciences, University of Macau, Taipa, Macau 999078, China
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5
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Yao Y, Xie G, Zhang X, Yuan J, Hou Y, Chen H. Fast detection of E. coli with a novel fluorescent biosensor based on a FRET system between UCNPs and GO@Fe 3O 4 in urine specimens. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:2209-2214. [PMID: 33908469 DOI: 10.1039/d1ay00320h] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Biosensors based on nanomaterials are becoming a research hotspot for the rapid detection of pathogenic bacteria. Herein, a "turn-on" fluorescent biosensor based on a FRET system was constructed for the fast detection of a representative pathogenic microorganism, namely, E. coli, which causes most urinary tract infections. This biosensor was constructed by utilizing synthesized UCNPs as fluorescent donors with stable luminescence performance in complex biological samples and GO@Fe3O4 as a receptor with both excellent adsorption ability and fluorescence quenching ability. A specific ssDNA selected as an aptamer which could recognize E. coli was immobilized on the UCNPs to form UCNP-Apt nanoprobes. The nanoprobes were adsorbed on the surface of GO@Fe3O4 through the π-stacking interactions between aptamers and GO. In the presence of E. coli, UCNP-Apt nanoprobes detached from GO@Fe3O4 due to the specific recognition of aptamers and bacteria, resulting in obvious fluorescence recovery, and the concentration of bacteria was positively correlated with the intensity of the fluorescence signal; such a "turn-on" signal output mode ensures excellent precision. In addition, the easy magnetic separation of GO@Fe3O4 simplifies the operation process, helping the sensor detect bacteria in 30 minutes with a linear range from 103 to 107 CFU mL-1 and a limit of detection of 467 CFU mL-1. Moreover, recovery test results also showed that the sensor has clinical application potential for the rapid detection of pathogenic microorganisms in complex biological samples.
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Affiliation(s)
- Yuan Yao
- Clinical Laboratories, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, P. R. China.
| | - Guoming Xie
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, P. R. China.
| | - Xin Zhang
- Clinical Laboratories, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, P. R. China.
| | - Jinshan Yuan
- Clinical Laboratories, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, P. R. China.
| | - Yulei Hou
- Clinical Laboratories, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, P. R. China.
| | - Hui Chen
- Clinical Laboratories, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, P. R. China.
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6
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Han Q, Lau JW, Do TC, Zhang Z, Xing B. Near-Infrared Light Brightens Bacterial Disinfection: Recent Progress and Perspectives. ACS APPLIED BIO MATERIALS 2020; 4:3937-3961. [DOI: 10.1021/acsabm.0c01341] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Qinyu Han
- Division of Chemistry and Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Jun Wei Lau
- Division of Chemistry and Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Thang Cong Do
- Division of Chemistry and Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Zhijun Zhang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Bengang Xing
- Division of Chemistry and Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637549, Singapore
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7
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Tao Y, Chan HF, Shi B, Li M, Leong KW. Light: A Magical Tool for Controlled Drug Delivery. ADVANCED FUNCTIONAL MATERIALS 2020; 30:2005029. [PMID: 34483808 PMCID: PMC8415493 DOI: 10.1002/adfm.202005029] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Indexed: 05/04/2023]
Abstract
Light is a particularly appealing tool for on-demand drug delivery due to its noninvasive nature, ease of application and exquisite temporal and spatial control. Great progress has been achieved in the development of novel light-driven drug delivery strategies with both breadth and depth. Light-controlled drug delivery platforms can be generally categorized into three groups: photochemical, photothermal, and photoisomerization-mediated therapies. Various advanced materials, such as metal nanoparticles, metal sulfides and oxides, metal-organic frameworks, carbon nanomaterials, upconversion nanoparticles, semiconductor nanoparticles, stimuli-responsive micelles, polymer- and liposome-based nanoparticles have been applied for light-stimulated drug delivery. In view of the increasing interest in on-demand targeted drug delivery, we review the development of light-responsive systems with a focus on recent advances, key limitations, and future directions.
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Affiliation(s)
- Yu Tao
- Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, School of Biomedical Science, The Chinese University of Hong Kong, Hong Kong, China
| | - Bingyang Shi
- International Joint Center for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Kam W Leong
- Department of Biomedical Engineering, Department of Systems Biology, Columbia University Medical Center, New York, NY 10032, USA
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8
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Yi Z, Luo Z, Qin X, Chen Q, Liu X. Lanthanide-Activated Nanoparticles: A Toolbox for Bioimaging, Therapeutics, and Neuromodulation. Acc Chem Res 2020; 53:2692-2704. [PMID: 33103883 DOI: 10.1021/acs.accounts.0c00513] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Owing to their unique features, the past decade has witnessed rapid developments of lanthanide-activated nanoparticles for biological applications. These include highly tunable upconverting and downshifting photoluminescence when illuminated in deep tissue, excellent photostability against blinking and bleaching effects, biocompatibility through versatile surface modification, and ease of achieving multifunctionality, as well as satisfactory signal output. These attributes make lanthanide-doped nanoparticles an ideal toolbox for advanced bioimaging and next-generation therapeutics.The interest in lanthanide-doped nanoparticles for biomedical research arises from their unique optical properties in response to deep-tissue-penetrable light sources. Upon near-infrared irradiation, these nanoparticles with properly doped emitters display photon upconversion with large anti-Stokes shifts and broad-spectrum tunability from the ultraviolet to the visible. It is also possible to achieve orthogonal photoluminescence with variations in wavelength and lifetime. Coupled with surface ligands, dyes, biomolecules, or other types of functional nanomaterials, lanthanide-doped nanoparticles offer new opportunities for applications in bioimaging, advanced oncotherapy, and neuromodulation. Given the possibility of locating downshifting luminescence at "biological transmission windows", exquisite design of lanthanide-doped nanoparticles also enables deep-tissue imaging with high spatial resolution. In addition, these nanoparticles can respond to high-energy photons, such as X-rays, to trigger nonradioactive and radiative pathways, making it possible to develop high-sensitivity X-ray detectors. Precise control of paramagnetic lanthanide ions in nanocrystal lattices also provides advanced materials for high-performance magnetic resonance imaging in medical diagnostics and biomedical research. Full consideration of fundamental attributes of lanthanide-doped nanoparticles will facilitate the design of multifunctional and sensitive probes and improve diagnostic and therapeutic outcomes.In this Account, we categorize various lanthanide-activation strategies into three modes: near-infrared excitation, X-ray irradiation, and magnetic field stimulation. We introduce energy manipulations in upconverting, downshifting, and persistence luminescence in spectral and time domains and discuss how they can be applied in biological practices. We assess general design principles for lanthanide-activated nanosystems with multiple modalities of bioimaging, oncotherapy, and neuromodulation. We also review the current state-of-the-art in the field of lanthanide-based theranostic nanoplatforms, with particular emphasis on energy conversion and nano-/biointerfacing as well as emerging bioapplications. In this context, we also highlight recent advances in controlling optical properties of nanoplatforms for single- or multimodal bioimaging, stimulus-responsive phototherapy, and optogenetics. Finally, we discuss future opportunities and challenges of this exciting research field.
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Affiliation(s)
- Zhigao Yi
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
- The N.1 Institute for Health, National University of Singapore, 28 Medical Drive, Singapore 117456, Singapore
| | - Zichao Luo
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
- The N.1 Institute for Health, National University of Singapore, 28 Medical Drive, Singapore 117456, Singapore
| | - Xian Qin
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Qiushui Chen
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Xiaogang Liu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
- The N.1 Institute for Health, National University of Singapore, 28 Medical Drive, Singapore 117456, Singapore
- Center for Functional Materials, National University of Singapore Suzhou Research Institute, Suzhou 215123, China
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Zou Z, Sun J, Li Q, Pu Y, Liu J, Sun R, Wang L, Jiang T. Vancomycin modified copper sulfide nanoparticles for photokilling of vancomycin-resistant enterococci bacteria. Colloids Surf B Biointerfaces 2020; 189:110875. [PMID: 32087532 DOI: 10.1016/j.colsurfb.2020.110875] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/13/2020] [Accepted: 02/12/2020] [Indexed: 10/25/2022]
Abstract
Due to the overuse of antibiotics, vancomycin resistant enterococci (VRE) has caused serious infections and become more and more difficult to deal with. Herein, we reported a facile one-pot strategy to synthesize copper sulfide nanoparticles using vancomycin (Van) as reductant and capping agent (CuS@Van). The as-prepared CuS@Van nanocomposites presented excellent uniformity in particle size and strong near infrared (NIR) absorbance. Fourier Transform infrared spectroscopy (FTIR) and Energy dispersive spectrometry (EDS) analysis confirmed the successful modification of Van molecules on the surface of CuS@Van nanoparticles. Bacterial TEM images verified the specific binding affinity between CuS@Van and VRE pathogen. CuS@Van also exhibited effective photokilling capability based on a combination of photothermal therapy (PTT) and photodynamic therapy (PDT). Fluorescent bacterial viability staining and bacterial growth curves monitoring were performed to explore the photokilling ablation of CuS@Van against VRE pathogens. The in vitro results indicated that CuS@Van nanocomposites had no antibacterial activity in the dark but displayed satisfying bactericidal effect against VRE pathogens upon the NIR irradiation. Mouse infection assays were also implemented to evaluate in vivo antibacterial photokilling effectiveness. CuS@Van with NIR irradiation showed the highest antibacterial capability and fastest infection regression compared with the control groups. Considering the low cost, easy preparation, good biocompatibility and excellent photokilling capability, CuS@Van nanocomposites will shed bright light on the photokilling ablation of vancomycin-resistant pathogenic bacteria.
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Affiliation(s)
- Zhonghao Zou
- School of Life Sciences, Ludong University, Yantai 264025, China
| | - Jie Sun
- School of Life Sciences, Ludong University, Yantai 264025, China
| | - Qing Li
- School of Life Sciences, Ludong University, Yantai 264025, China
| | - Yang Pu
- School of Agriculture, Ludong University, Yantai 264025, China
| | - Jiaqi Liu
- School of Life Sciences, Ludong University, Yantai 264025, China
| | - Ruiqi Sun
- School of Life Sciences, Ludong University, Yantai 264025, China
| | - Luyao Wang
- School of Life Sciences, Ludong University, Yantai 264025, China
| | - Tingting Jiang
- School of Life Sciences, Ludong University, Yantai 264025, China.
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10
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Upconversion luminescence nanomaterials: A versatile platform for imaging, sensing, and therapy. Talanta 2020; 208:120157. [DOI: 10.1016/j.talanta.2019.120157] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/27/2019] [Accepted: 07/14/2019] [Indexed: 11/21/2022]
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11
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Loo JFC, Chien YH, Yin F, Kong SK, Ho HP, Yong KT. Upconversion and downconversion nanoparticles for biophotonics and nanomedicine. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.213042] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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12
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Qian Q, Shi L, Gao X, Ma Y, Yang J, Zhang Z, Qian J, Zhu X. A Paclitaxel-Based Mucoadhesive Nanogel with Multivalent Interactions for Cervical Cancer Therapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1903208. [PMID: 31617295 DOI: 10.1002/smll.201903208] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 09/24/2019] [Indexed: 06/10/2023]
Abstract
Cervical cancer treatment is subject to limited drug access to locally diseased targets and generally resistant to chemotherapy, thus it is essential to develop a local drug delivery system to overcome these problems, premised on guaranteeing drug efficacy. With this goal in mind, a multivalent interactions-based mucoadhesive nanogel for vaginal delivery is proposed. Briefly, the nanogel is constructed with mucoadhesive poly(acrylic acid) as the backbone and multiple inclusions between β-cyclodextrin and paclitaxel as the crosslinking points. The in vitro experiments demonstrate that nanogel exerts high cytotoxicity to cancer cells, reverses multidrug resistance effectively, and successfully promotes the permeation of drugs. More to the point, as proved in the in vivo experiments, the retention time in the vagina is prolonged and the tumor growth is effectively suppressed by the nanogel without any side effects in the orthotopic cervical cancer model. As mentioned above, this novel mucoadhesive nanogel is believed to be a useful tool toward designing drug delivery systems for cervical cancer treatment.
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Affiliation(s)
- Qiuhui Qian
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Leilei Shi
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Xihui Gao
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Yuan Ma
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Jiapei Yang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Zhihao Zhang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Jiwen Qian
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
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