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Farcaş AA, Bende A. Theoretical insights into dopamine photochemistry adsorbed on graphene-type nanostructures. Phys Chem Chem Phys 2024; 26:14937-14947. [PMID: 38738904 DOI: 10.1039/d4cp00432a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
The equilibrium geometry structures and light absorption properties of the dopamine (DA) and dopamine-o-quinone (DAQ) adsorbed on the graphene surface have been investigated using the ground state and linear-response time-dependent density functional theories. Two types of graphene systems were considered, a rectangular form of hexagonal lattice with optimized C-C bond length as the model system for graphene nanoparticles (GrNP) and a similar system but with fixed C-C bond length (1.42 Å) as the model system for graphene 2D sheet (GrS). The analysis of the vertical excitations showed that three types of electronic transitions are possible, namely, localized on graphene, localized on the DA or DAQ, and charge transfer (CT). In the case of the graphene-DA complex, the charge transfer excitations were characterized by the molecule-to-surface (MSCT) character, whereas the graphene-DAQ was characterized by the reverse, i.e. surface-to-molecule (SMCT). The difference between the two cases is given by the presence of an energetically low-lying unoccupied orbital (LUMO+1) that allows charge transfer from the surface to the molecule in the case of DAQ. However, it was also shown that the fingerprints of excited electronic states associated with the adsorbed molecules cannot be seen in the spectrum, as they are mostly suppressed by the characteristic spectral shape of graphene.
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Affiliation(s)
- Alex-Adrian Farcaş
- National Institute for Research and Development of Isotopic and Molecular Technologies, Donat Street, No. 67-103, Ro-400293 Cluj-Napoca, Romania.
| | - Attila Bende
- National Institute for Research and Development of Isotopic and Molecular Technologies, Donat Street, No. 67-103, Ro-400293 Cluj-Napoca, Romania.
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2
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Wu T, Wang L, Jian C, Gao C, Liu Y, Fu Z, Shi C. Regulatory T cell-derived exosome mediated macrophages polarization for osteogenic differentiation in fracture repair. J Control Release 2024; 369:266-282. [PMID: 38508525 DOI: 10.1016/j.jconrel.2024.03.028] [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: 12/05/2023] [Revised: 03/14/2024] [Accepted: 03/15/2024] [Indexed: 03/22/2024]
Abstract
Refractory fracture presents an intractable challenge in trauma treatment. Selective polarization of macrophages as well as the recruitment of osteogenic precursor cells play key roles in osteogenic differentiation during fracture healing. Here we constructed regulatory T cell (Treg)-derived exosomes (Treg-Exo) for the treatment of fracture. The obtained exosomes displayed a spheroid shape with a hydrated particle size of approximately 130 nm. With further purification using CD39 and CD73 antibody-modified microfluidic chips, CD39 and CD73 specifically expressing exosomes were obtained. This kind of Treg-Exo utilized the ectonucleotidases of CD39 and CD73 to catalyze the high level of ATP in the fracture area into adenosine. The generated adenosine further promoted the selective polarization of macrophages. When interacting with mesenchymal stem cells (MSCs, osteogenic precursor cells), both Treg-Exo and Treg-Exo primed macrophages facilitated the proliferation and differentiation of MSCs. After administration in vivo, Treg-Exo effectively promoted fracture healing compared with conventional T cell-derived exosome. To further improve the delivery efficacy of exosomes and integrate multiple biological processes of fracture healing, an injectable hydrogel was fabricated to co-deliver Treg-Exo and stromal cell-derived factor 1 alpha (SDF-1α). With the dual effect of Treg-Exo for macrophage polarization and SDF-1α for MSC recruitment, the multifunctional hydrogel exerted a synergistic effect on fracture repair acceleration. This study provided a promising therapeutic candidate and synergistic strategy for the clinical treatment of fracture.
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Affiliation(s)
- Tingting Wu
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan 430022, China
| | - Lulu Wang
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan 430022, China
| | - Chen Jian
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan 430022, China
| | - Chen Gao
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan 430022, China
| | - Yajing Liu
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan 430022, China
| | - Zhiwen Fu
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan 430022, China
| | - Chen Shi
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan 430022, China.
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Edrisi F, Mahmoudian M, Shadjou N. Preparation of an innovative series of respiratory nano-filters using polystyrene fibrous films containing KCC-1 dendrimer and ZnO nanostructures for environmental assessment of SO 2, NO 2 and CO 2. RSC Adv 2024; 14:7303-7313. [PMID: 38444973 PMCID: PMC10913408 DOI: 10.1039/d4ra00176a] [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: 01/07/2024] [Accepted: 02/26/2024] [Indexed: 03/07/2024] Open
Abstract
Air pollution has become a major challenge that threatens human health. The use of respiratory filters is one of the proposed solutions. In this study, using polystyrene (PS) fibers and various nanomaterials, improved respiratory filters were fabricated to remove air pollutants. In this context, ZnO nanoparticles (ZnO NPs) integrated into dendritic structures of KCC-1 silica were used to improve the filters' ability to absorb pollutants. For the first time, the removal of gasses by modified filters with a novel polymeric nanocomposite (PS/ZnO-KCC-1) stabilized on the surface of respiratory filters was investigated. Moreover, two different methods including stabilized- and solution-based techniques were used to prepare the filters with different amounts of ZnO NPs and their efficiency was evaluated. All synthesized nanocomposites and developed filters were characterized by FT-IR, FESEM, TGA and XRD methods. The successful stabilization of nanostructures on the fibers was proved and the performance of the fibers was investigated with some tests, such as pressure drop and removal of suspended particles and CO2 (89%), NO2 (86%), and SO2 (83%) gases. PS/KCC-1-ZnO (5%) has better performance than other prepared fibers. The results showed that the removal of suspended particles in the filter containing ZnO and KCC-1 (M5) nanostructures was improved by 18% compared to the filter consisting of polystyrene fibers. The pressure drop increased with the addition of nanostructures and reached 180 Pa in the M5 filter. The filter containing ZnO NPs showed antibacterial activity against Staphylococcus (S.) aureus and Escherichia (E.) coli as Gram-positive and Gram-negative model bacteria using the Agar disk-diffusion method. Based on the results, the use of improved respiratory filters is recommended as an effective solution for combating air pollution and protecting human health.
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Affiliation(s)
- Farzaneh Edrisi
- Faculty of Chemistry, Department of Nanotechnology, Urmia University Urmia Iran +98 44 32752741
| | - Mehdi Mahmoudian
- Faculty of Chemistry, Department of Nanotechnology, Urmia University Urmia Iran +98 44 32752741
- Nanotechnology Research Center, Urmia University Urmia Iran
| | - Nasrin Shadjou
- Faculty of Chemistry, Department of Nanotechnology, Urmia University Urmia Iran +98 44 32752741
- Nanotechnology Research Center, Urmia University Urmia Iran
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Xiao L, Li Y, Geng R, Chen L, Yang P, Li M, Luo X, Yang Y, Li L, Cai H. Polymer composite microspheres loading 177Lu radionuclide for interventional radioembolization therapy and real-time SPECT imaging of hepatic cancer. Biomater Res 2023; 27:110. [PMID: 37925456 PMCID: PMC10625707 DOI: 10.1186/s40824-023-00455-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 10/24/2023] [Indexed: 11/06/2023] Open
Abstract
BACKGROUND Transarterial radioembolization (TARE) with 90Y-labeled glass and resin microspheres is one of the primary treatment strategies for advanced-stage primary and metastatic hepatocellular carcinoma (HCC). However, difficulties of real-time monitoring post administration and embolic hypoxia influence treatment prognosis. In this study, we developed a new biodegradable polymer microsphere that can simultaneously load 177Lu and MgO nanoparticle, and evaluated the TARE therapeutic efficacy and biosafety of 177Lu-PDA-CS-MgO microspheres for HCC treatment. METHODS Chitosan microspheres were synthesized through emulsification crosslink reaction and then conducted surface modification with polydopamine (PDA). The 177Lu and nano MgO were conjugated to microspheres using active chemical groups of PDA. The characteristics of radionuclide loading efficiency, biodegradability, blood compatibility, and anti-tumor effectwere evaluated both in vitro and in vivo. SPECT/CT imaging was performed to monitor bio-distribution and bio-stability of 177Lu-PDA-CS-MgO after TARE treatment. The survival duration of each rat was monitored. HE analysis, TUNEL analysis, immunohistochemical analysis, and western blot analysis were conducted to explore the anti-tumor effect and mechanism of composited microspheres. Body weight, liver function, blood routine examination were monitored at different time points to evaluate the bio-safety of microspheres. RESULTS The composite 177Lu-PDA-CS-MgO microsphere indicated satisfactory degradability, biocompatibility, radionuclide loading efficiency and radiochemical stability in vitro. Cellular evaluation showed that 177Lu-PDA-CS-MgO had significant anti-tumor effect and blocked tumor cell cycles in S phase. Surgical TARE treatment with 177Lu-PDA-CS-MgO significantly prolonged the medial survival time from 49 d to 105 d, and effectively inhibited primary tumor growth and small metastases spreading. Moreover, these microspheres indicated ideal in vivo stability and allowed real-time SPECT/CT monitoring for up to 8 weeks. Immunostaining and immunoblotting results also confirmed that 177Lu-PDA-CS-MgO had potential in suppressing tumor invasion and angiogenesis, and improved embolic hypoxia in HCC tissues. Further evaluations of body weight, blood test, and pathological analysis indicated good biosafety of 177Lu-PDA-CS-MgO microspheres in vivo. CONCLUSION Our study demonstrated that 177Lu-PDA-CS-MgO microsphere hold great potential as interventional brachytherapy candidate for HCC therapy. Polymer composite microspheres loading 177Lu radionuclide and MgO nanoparticles for interventional radioembolization therapy and real-time SPECT imaging of hepatic cancer.
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Affiliation(s)
- Liu Xiao
- Department of Nuclear Medicine & Laboratary of Clinical Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, 610041, P.R. China
| | - Yuhao Li
- Department of Nuclear Medicine & Laboratary of Clinical Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, 610041, P.R. China
| | - Ruiman Geng
- Department of Biochemistry & Molecular Biology, West China School of Basic Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Lihong Chen
- Department of Biochemistry & Molecular Biology, West China School of Basic Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Peng Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P.R. China
| | - Mingyu Li
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, P.R. China
| | - Xia Luo
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, P.R. China
| | - Yuchuan Yang
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, P.R. China
| | - Lin Li
- Department of Nuclear Medicine & Laboratary of Clinical Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, 610041, P.R. China.
| | - Huawei Cai
- Department of Nuclear Medicine & Laboratary of Clinical Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, 610041, P.R. China.
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Olejnik A, Polaczek K, Szkodo M, Stanisławska A, Ryl J, Siuzdak K. Laser-Induced Graphitization of Polydopamine on Titania Nanotubes. ACS APPLIED MATERIALS & INTERFACES 2023; 15. [PMID: 37915241 PMCID: PMC10658452 DOI: 10.1021/acsami.3c11580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 10/17/2023] [Accepted: 10/17/2023] [Indexed: 11/03/2023]
Abstract
Since the discovery of laser-induced graphite/graphene, there has been a notable surge of scientific interest in advancing diverse methodologies for their synthesis and applications. This study focuses on the utilization of a pulsed Nd:YAG laser to achieve graphitization of polydopamine (PDA) deposited on the surface of titania nanotubes. The partial graphitization is corroborated through Raman and XPS spectroscopies and supported by water contact angle, nanomechanical, and electrochemical measurements. Reactive molecular dynamics simulations confirm the possibility of graphitization in the nanosecond time scale with the evolution of NH3, H2O, and CO2 gases. A thorough exploration of the lasing parameter space (wavelength, pulse energy, and number of pulses) was conducted with the aim of improving either electrochemical activity or photocurrent generation. Whereas the 532 nm laser pulses interacted mostly with the PDA coating, the 365 nm pulses were absorbed by both PDA and the substrate nanotubes, leading to a higher graphitization degree. The majority of the photocurrent and quantum efficiency enhancement is observed in the visible light between 400 and 550 nm. The proposed composite is applied as a photoelectrochemical (PEC) sensor of serotonin in nanomolar concentrations. Because of the suppressed recombination and facilitated charge transfer caused by the laser graphitization, the proposed composite exhibits significantly enhanced PEC performance. In the sensing application, it showed superior sensitivity and a limit of detection competitive with nonprecious metal materials.
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Affiliation(s)
- Adrian Olejnik
- Department
of Metrology and Optoelectronics, Faculty of Electronics, Telecommunications
and Informatics, Gdańsk University
of Technology, Narutowicza 11/12 St., Gdańsk 80-233, Poland
- Centre
for Plasma and Laser Engineering, The Szewalski
Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14 St., Gdańsk 80-231, Poland
| | - Krzysztof Polaczek
- Centre
for Plasma and Laser Engineering, The Szewalski
Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14 St., Gdańsk 80-231, Poland
- Department
of Biomedical Chemistry, Faculty of Chemistry
University of Gdansk, Wita Stwosza 63 St, Gdańsk 80-308, Poland
| | - Marek Szkodo
- Institute
of Manufacturing and Materials Technology, Faculty of Mechanical Engineering
and Ship Technology, Gdańsk University
of Technology, Narutowicza 11/12 St., Gdańsk 80-233, Poland
| | - Alicja Stanisławska
- Institute
of Manufacturing and Materials Technology, Faculty of Mechanical Engineering
and Ship Technology, Gdańsk University
of Technology, Narutowicza 11/12 St., Gdańsk 80-233, Poland
| | - Jacek Ryl
- Institute
of Nanotechnology and Materials Engineering and Advanced Materials
Center, Gdańsk University of Technology, Narutowicza 11/12, Gdańsk 80-233, Poland
| | - Katarzyna Siuzdak
- Centre
for Plasma and Laser Engineering, The Szewalski
Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14 St., Gdańsk 80-231, Poland
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Ouyang D, Zhang L, Mao R, Qin X, Pang W. Application Process of Coating Agent and the Coating Effect Evaluation Based on Molecular Dynamics. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:3411-3419. [PMID: 36802648 DOI: 10.1021/acs.langmuir.2c02954] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
In the field of energy-containing materials, the modification of nanoaluminum powders has been widely studied. However, in modified experimental design, the lack of theoretical prediction usually leads to long experimental cycles and high resource consumption. To this end, this study evaluated the process and effect of dopamine (PDA)- and polytetrafluoroethylene (PTFE)-modified nanoaluminum powders based on molecular dynamics (MD). Through the calculation of the coating stability, compatibility, and oxygen barrier performance of the modified material, the modification process and effect were explored from a microscopic point of view. The results showed that the adsorption of PDA on the nanoaluminum was the most stable, and the binding energy was 463.03 kcal·mol-1. PDA and PTFE with different ratios are compatible systems at 350 K, and the best compatibility ratio is 10 wt % PTFE/90 wt % PDA. The 90 wt % PTFE/10 wt % PDA bilayer model has the best barrier performance for oxygen molecules in a wide temperature range. The calculated results of the coating stability agree with the experiments, and it is pointed out that it is feasible to evaluate the modification effect in advance by MD simulation. In addition, the simulation results concluded that the double-layered PDA and PTFE have better oxygen barrier properties. Compatibility can be used only to determine whether phase separation occurs between mixtures and is not directly related to the dense mixing of polymers and the barrier properties of small gas molecules. The simulation provided in this article can predict the experimental results and provide theoretical guidance for coating modification experiments in order to reduce unnecessary experiments, shorten the experimental cycle, and reduce costs.
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Affiliation(s)
- Dihua Ouyang
- School of Resource Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Langlang Zhang
- School of Resource Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Ruijin Mao
- School of Resource Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Xiaowen Qin
- School of Resource Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Weiqiang Pang
- Xi'an Modern Chemistry Research Institute, Xi'an 710065, China
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Sharma A, Agrawal A, Pandey G, Kumar S, Awasthi K, Awasthi A. Carbon Nano-Onion-Decorated ZnO Composite-Based Enzyme-Less Electrochemical Biosensing Approach for Glucose. ACS OMEGA 2022; 7:37748-37756. [PMID: 36312397 PMCID: PMC9609061 DOI: 10.1021/acsomega.2c04730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
This study investigates the enzyme-less biosensing property of the zinc oxide/carbon nano-onion (ZnO/CNO) nanocomposite coated on a glassy carbon electrode. The ZnO/CNO nanocomposite was synthesized using the ex situ mixing method, and the structural characterization was done using XRD, SEM, and TEM, whereas functional groups and optical characterization were done through FTIR and UV-visible spectroscopy. The electrochemical sensing response of the ZnO/CNO nanocomposite for the linear range of glucose concentration (0.1-15 mM) was examined using cyclic voltammetry (CV) with a potential window of -1.6 to +1.6 V using 0.1 M NaOH as an electrolyte. The ZnO/CNO nanocomposites showed enhanced sensing ability toward glucose with a sensitive value of 606.64 μA/mM cm2. Amperometric i-t measurement supports the finding of CV measurement and showed good sensing ability of the electrode ZnO/CNO nanocomposite material for up to 40 days. The enhanced electrocatalytic activity of the ZnO/CNO nanocomposite is explained due to the synergetic effect of both ZnO and CNO. Our findings suggest a high potential for ZnO/CNO nanocomposite-based glucose biosensors, which could be further utilized to develop noninvasive skin-attached sensors for biomedical applications.
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Affiliation(s)
- Ankita Sharma
- Department
of Zoology, University of Rajasthan, Jaipur302004, India
| | - Ankush Agrawal
- Department
of Zoology, University of Rajasthan, Jaipur302004, India
| | - Gaurav Pandey
- Department
of Physics, Malaviya National Institute
of Technology, Jaipur302017, India
| | - Sanjay Kumar
- Department
of Physics, Malaviya National Institute
of Technology, Jaipur302017, India
| | - Kamlendra Awasthi
- Department
of Physics, Malaviya National Institute
of Technology, Jaipur302017, India
| | - Anjali Awasthi
- Department
of Zoology, University of Rajasthan, Jaipur302004, India
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Wang L, Zhang J, Shen W, Zeng X, Lee HK, Tang S. Can Direct-Immersion Aqueous–Aqueous Microextraction Be Achieved When Using a Single-Drop System? Anal Chem 2022; 94:12538-12545. [DOI: 10.1021/acs.analchem.2c03017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lina Wang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, PR China
| | - Jinghui Zhang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, PR China
| | - Wei Shen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, PR China
| | - Xuemin Zeng
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, PR China
| | - Hian Kee Lee
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, PR China
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Sheng Tang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu Province, PR China
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Aguilar-Ferrer D, Szewczyk J, Coy E. Recent developments in polydopamine-based photocatalytic nanocomposites for energy production: Physico-chemical properties and perspectives. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.08.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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10
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PVA/Gd2O3@Zno Nanocomposite Films as New Uv-Blockers: Structure and Optical Revelations. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02231-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Choi S, Lee J, Lee K, Yoon SM, Yoon M. Porphyrin-decorated ZnO nanowires as nanoscopic injectors for phototheragnosis of cancer cells. NEW J CHEM 2022. [DOI: 10.1039/d2nj02084j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Newly synthesized protoporphyrin-decorated ZnO-nanowires exhibited optical waveguided and photodynamic properties to be useful nanoscopic injectors for photo-theragnosis of cancer cells.
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Affiliation(s)
- Sunyoung Choi
- Molecular/Nano Photochemistry and Photonics Lab, Department of Chemistry, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Jooran Lee
- Molecular/Nano Photochemistry and Photonics Lab, Department of Chemistry, Chungnam National University, Daejeon, 34134, Republic of Korea
- TheraNovis Inc. 32 Seongnae-ro 6-gil, Gangdong-gu, Seoul, Republic of Korea
| | - Kangmin Lee
- Department of Chemistry, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk, Republic of Korea
- Wonkwang Materials Institute of Science and Technology, 460 Iksandae-ro, Iksan, Jeonbuk, Republic of Korea
| | - Seok Min Yoon
- Department of Chemistry, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk, Republic of Korea
- Wonkwang Materials Institute of Science and Technology, 460 Iksandae-ro, Iksan, Jeonbuk, Republic of Korea
| | - Minjoong Yoon
- Molecular/Nano Photochemistry and Photonics Lab, Department of Chemistry, Chungnam National University, Daejeon, 34134, Republic of Korea
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Fedorenko V, Damberga D, Grundsteins K, Ramanavicius A, Ramanavicius S, Coy E, Iatsunskyi I, Viter R. Application of Polydopamine Functionalized Zinc Oxide for Glucose Biosensor Design. Polymers (Basel) 2021; 13:2918. [PMID: 34502958 PMCID: PMC8433701 DOI: 10.3390/polym13172918] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 08/26/2021] [Accepted: 08/27/2021] [Indexed: 12/29/2022] Open
Abstract
Zinc oxide (ZnO) nanostructures are widely used in optical sensors and biosensors. Functionalization of these nanostructures with polymers enables optical properties of ZnO to be tailored. Polydopamine (PDA) is a highly biocompatible polymer, which can be used as a versatile coating suitable for application in sensor and biosensor design. In this research, we have grown ZnO-based nanorods on the surface of ITO-modified glass-plated optically transparent electrodes (glass/ITO). Then the deposition of the PDA polymer layer on the surface of ZnO nanorods was performed from an aqueous PDA solution in such a way glass/ITO/ZnO-PDA structure was formed. The ZnO-PDA composite was characterized by SEM, TEM, and FTIR spectroscopy. Then glucose oxidase (GOx) was immobilized using crosslinking by glutaraldehyde on the surface of the ZnO-PDA composite, and glass/ITO/ZnO-PDA/GOx-based biosensing structure was designed. This structure was applied for the photo-electrochemical determination of glucose (Glc) in aqueous solutions. Photo-electrochemical determination of glucose by cyclic voltammetry and amperometry has been performed by glass/ITO/ZnO-PDA/GOx-based biosensor. Here reported modification/functionalization of ZnO nanorods with PDA enhances the photo-electrochemical performance of ZnO nanorods, which is well suited for the design of photo-electrochemical sensors and biosensors.
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Affiliation(s)
- Viktoriia Fedorenko
- Institute of Atomic Physics and Spectroscopy, University of Latvia, Jelgavas 3, LV-1004 Riga, Latvia; (V.F.); (D.D.); (K.G.); (A.R.)
| | - Daina Damberga
- Institute of Atomic Physics and Spectroscopy, University of Latvia, Jelgavas 3, LV-1004 Riga, Latvia; (V.F.); (D.D.); (K.G.); (A.R.)
| | - Karlis Grundsteins
- Institute of Atomic Physics and Spectroscopy, University of Latvia, Jelgavas 3, LV-1004 Riga, Latvia; (V.F.); (D.D.); (K.G.); (A.R.)
| | - Arunas Ramanavicius
- Institute of Atomic Physics and Spectroscopy, University of Latvia, Jelgavas 3, LV-1004 Riga, Latvia; (V.F.); (D.D.); (K.G.); (A.R.)
- Institute of Chemistry, Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania;
| | - Simonas Ramanavicius
- Institute of Chemistry, Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania;
| | - Emerson Coy
- NanoBioMedical Centre, Adam Mickiewicz University in Poznan, Wszechnicy Piastowskiej Str. 3, 61-614 Poznan, Poland; (E.C.); (I.I.)
| | - Igor Iatsunskyi
- NanoBioMedical Centre, Adam Mickiewicz University in Poznan, Wszechnicy Piastowskiej Str. 3, 61-614 Poznan, Poland; (E.C.); (I.I.)
| | - Roman Viter
- Institute of Atomic Physics and Spectroscopy, University of Latvia, Jelgavas 3, LV-1004 Riga, Latvia; (V.F.); (D.D.); (K.G.); (A.R.)
- Center for Collective Use of Scientific Equipment, Sumy State University, 31, Sanatornaya Str., 40000 Sumy, Ukraine
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Babayevska N, Przysiecka Ł, Nowaczyk G, Jarek M, Järvekülg M, Kangur T, Janiszewska E, Jurga S, Iatsunskyi I. Fabrication of Gelatin-ZnO Nanofibers for Antibacterial Applications. MATERIALS (BASEL, SWITZERLAND) 2020; 14:E103. [PMID: 33383718 PMCID: PMC7795140 DOI: 10.3390/ma14010103] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/18/2020] [Accepted: 12/22/2020] [Indexed: 12/17/2022]
Abstract
In this study, GNF@ZnO composites (gelatin nanofibers (GNF) with zinc oxide (ZnO) nanoparticles (NPs)) as a novel antibacterial agent were obtained using a wet chemistry approach. The physicochemical characterization of ZnO nanoparticles (NPs) and GNF@ZnO composites, as well as the evaluation of their antibacterial activity toward Gram-positive (Staphyloccocus aureus and Bacillus pumilus) and Gram-negative (Escherichia coli and Pseudomonas fluorescens) bacteria were performed. ZnO NPs were synthesized using a facile sol-gel approach. Gelatin nanofibers (GNF) were obtained by an electrospinning technique. GNF@ZnO composites were obtained by adding previously produced GNF into a Zn2+ methanol solution during ZnO NPs synthesis. Crystal structure, phase, and elemental compositions, morphology, as well as photoluminescent properties of pristine ZnO NPs, pristine GNF, and GNF@ZnO composites were characterized using powder X-ray diffraction (XRD), FTIR analysis, transmission and scanning electron microscopies (TEM/SEM), and photoluminescence spectroscopy. SEM, EDX, as well as FTIR analyses, confirmed the adsorption of ZnO NPs on the GNF surface. The pristine ZnO NPs were highly crystalline and monodispersed with a size of approximately 7 nm and had a high surface area (83 m2/g). The thickness of the pristine gelatin nanofiber was around 1 µm. The antibacterial properties of GNF@ZnO composites were investigated by a disk diffusion assay on agar plates. Results show that both pristine ZnO NPs and their GNF-based composites have the strongest antibacterial properties against Pseudomonas fluorescence and Staphylococcus aureus, with the zone of inhibition above 10 mm. Right behind them is Escherichia coli with slightly less inhibition of bacterial growth. These properties of GNF@ZnO composites suggest their suitability for a range of antimicrobial uses, such as in the food industry or in biomedical applications.
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Affiliation(s)
- Nataliya Babayevska
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland; (Ł.P.); (G.N.); (M.J.); (S.J.)
| | - Łucja Przysiecka
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland; (Ł.P.); (G.N.); (M.J.); (S.J.)
| | - Grzegorz Nowaczyk
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland; (Ł.P.); (G.N.); (M.J.); (S.J.)
| | - Marcin Jarek
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland; (Ł.P.); (G.N.); (M.J.); (S.J.)
| | - Martin Järvekülg
- Institute of Physics, University of Tartu, W. Ostwaldi Str 1, 50411 Tartu, Estonia; (M.J.); (T.K.)
| | - Triin Kangur
- Institute of Physics, University of Tartu, W. Ostwaldi Str 1, 50411 Tartu, Estonia; (M.J.); (T.K.)
| | - Ewa Janiszewska
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland;
| | - Stefan Jurga
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland; (Ł.P.); (G.N.); (M.J.); (S.J.)
| | - Igor Iatsunskyi
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland; (Ł.P.); (G.N.); (M.J.); (S.J.)
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