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Tian S, Nie Q, Chen H, Liang L, Hu H, Tang S, Yang J, Liu Y, Yin H. Synthesis, characterization and irradiation enhances anticancer activity of liposome-loaded iridium(III) complexes. J Inorg Biochem 2024; 256:112549. [PMID: 38579631 DOI: 10.1016/j.jinorgbio.2024.112549] [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: 01/24/2024] [Revised: 03/18/2024] [Accepted: 03/31/2024] [Indexed: 04/07/2024]
Abstract
Herein, we synthesized and characterized two novel iridium (III) complexes: [Ir(bzq)2(PPD)](PF6) (4a, with bzq = deprotonated benzo[h]quinoline and PPD = pteridino[6,7-f][1,10]phenanthroline-11,13-diamine) and [Ir(piq)2(PPD)](PF6) (4b, with piq = deprotonated 1-phenylisoquinoline). The anticancer efficacy of these complexes, 4a and 4b, was investigated using 3-(4,5-dimethylthiazole)-2,5-diphenltetraazolium bromide (MTT). Complex 4a exhibited no cytotoxic activity, while 4b demonstrated moderate efficacy against SGC-7901, A549, and HepG2 cancer cells. To enhance their anticancer potential, we explored two strategies: (I) light irradiation and (II) encapsulation of the complexes in liposomes, resulting in the formation of 4alip and 4blip. Both strategies significantly increased the ability of 4a, 4b to kill cancer cells. The cellular studies indicated that both the free complexes 4a, 4b and their liposomal forms 4alip and 4blip effectively inhibited cell proliferation. The cell cycle arrest analysis uncovered 4alip and 4blip arresting cell growth in the S period. Additionally, we investigated apoptosis and ferroptosis pathways, observing an increase in malondialdehyde (MDA) levels, a reduction of glutathione (GSH), a down-regulation of GPX4 (glutathione peroxidase) expression, and lipid peroxidation. The effects on mitochondrial membrane potential and intracellular Ca2+ concentrations were also examined, revealing that both light-activated and liposomal forms of 4alip and 4blip caused a decline in mitochondrial membrane potential and an enhancement in intracellular Ca2+ levels. In conclusion, these complexes and them encapsulated liposomes induce cell death through apoptosis and ferroptosis.
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Affiliation(s)
- Shuang Tian
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Qianying Nie
- Department of Microbiology and Immunology, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Haomin Chen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Lijuan Liang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Huiyan Hu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Shuanghui Tang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jiawan Yang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yunjun Liu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Hui Yin
- Department of Microbiology and Immunology, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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Chen L, Zhang S, Duan Y, Song X, Chang M, Feng W, Chen Y. Silicon-containing nanomedicine and biomaterials: materials chemistry, multi-dimensional design, and biomedical application. Chem Soc Rev 2024; 53:1167-1315. [PMID: 38168612 DOI: 10.1039/d1cs01022k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
The invention of silica-based bioactive glass in the late 1960s has sparked significant interest in exploring a wide range of silicon-containing biomaterials from the macroscale to the nanoscale. Over the past few decades, these biomaterials have been extensively explored for their potential in diverse biomedical applications, considering their remarkable bioactivity, excellent biocompatibility, facile surface functionalization, controllable synthesis, etc. However, to expedite the clinical translation and the unexpected utilization of silicon-composed nanomedicine and biomaterials, it is highly desirable to achieve a thorough comprehension of their characteristics and biological effects from an overall perspective. In this review, we provide a comprehensive discussion on the state-of-the-art progress of silicon-composed biomaterials, including their classification, characteristics, fabrication methods, and versatile biomedical applications. Additionally, we highlight the multi-dimensional design of both pure and hybrid silicon-composed nanomedicine and biomaterials and their intrinsic biological effects and interactions with biological systems. Their extensive biomedical applications span from drug delivery and bioimaging to therapeutic interventions and regenerative medicine, showcasing the significance of their rational design and fabrication to meet specific requirements and optimize their theranostic performance. Additionally, we offer insights into the future prospects and potential challenges regarding silicon-composed nanomedicine and biomaterials. By shedding light on these exciting research advances, we aspire to foster further progress in the biomedical field and drive the development of innovative silicon-composed nanomedicine and biomaterials with transformative applications in biomedicine.
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Affiliation(s)
- Liang Chen
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China.
| | - Shanshan Zhang
- Department of Ultrasound Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P. R. China
| | - Yanqiu Duan
- Laboratory Center, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, P. R. China.
| | - Xinran Song
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China.
| | - Meiqi Chang
- Laboratory Center, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, P. R. China.
| | - Wei Feng
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China.
| | - Yu Chen
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China.
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Tafish AM, El-Sherbiny M, Al‐Karmalawy AA, Soliman OAEA, Saleh NM. Carvacrol-Loaded Phytosomes for Enhanced Wound Healing: Molecular Docking, Formulation, DoE-Aided Optimization, and in vitro/in vivo Evaluation. Int J Nanomedicine 2023; 18:5749-5780. [PMID: 37849641 PMCID: PMC10578319 DOI: 10.2147/ijn.s421617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 10/01/2023] [Indexed: 10/19/2023] Open
Abstract
Background Despite recent advances in wound healing products, phytochemicals have been considered promising and attractive alternatives. Carvacrol (CAR), a natural phenolic compound, has been reported to be effective in wound healing. Purpose This work endeavored to develop novel CAR-loaded phytosomes for the enhancement of the wound healing process. Methods Molecular docking was performed to compare the affinities of the different types of phospholipids to CAR. Phytosomes were prepared by three methods (thin-film hydration, cosolvency, and salting out) using Lipoid S100 and Phospholipon 90H with three levels of saturation percent (0%, 50%, and 100%), and three levels of phospholipid molar percent (66.67%, 75%, and 80%). The optimization was performed using Design Expert where particle size, polydispersity index, and zeta potential were chosen as dependent variables. The optimized formula (F1) was further investigated regarding entrapment efficiency, TEM, 1H-NMR, FT-IR, DSC, X-RD, in vitro release, ex vivo permeation, and stability. Furthermore, it was incorporated into a hydrogel formulation, and an in vivo study was conducted to investigate the wound-healing properties of F1. Results F1 was chosen as the optimized formula prepared via the thin-film hydration method with a saturation percent and a phospholipid molar percent of zero and 66.67, respectively. TEM revealed the spherical shape of phytosomal vesicles with uniform size, while the results of 1H-NMR, FT-IR, DSC, and X-RD confirmed the formation of the phytosomal complex. F1 demonstrated a higher in vitro release and a slower permeation than free CAR. The wound area of F1-treated animals showed a marked reduction associated with a high degree of collagen fiber deposition and enhanced cellular proliferation. Conclusion F1 can be considered as a promising remedy for the enhancement of wound healing and hence it would be hoped to undergo further investigation.
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Affiliation(s)
- Ahmed Mowafy Tafish
- Department of Pharmaceutics, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Horus University, New Damietta, 34518, Egypt
| | - Mohamed El-Sherbiny
- Department of Basic Medical Sciences, College of Medicine, AlMaarefa University, Riyadh, Saudi Arabia
- Department of Anatomy, Faculty of Medicine, Mansoura University, Mansoura, 35516, Egypt
| | - Ahmed A Al‐Karmalawy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University, New Damietta, 34518, Egypt
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ahram Canadian University, 6th of October City, Giza, 12566, Egypt
| | | | - Noha Mohamed Saleh
- Department of Pharmaceutics, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
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Murueva AV, Shershneva AM, Shishatskaya EI, Volova TG. Characteristics of Microparticles Based on Resorbable Polyhydroxyalkanoates Loaded with Antibacterial and Cytostatic Drugs. Int J Mol Sci 2023; 24:14983. [PMID: 37834429 PMCID: PMC10573759 DOI: 10.3390/ijms241914983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/30/2023] [Accepted: 10/05/2023] [Indexed: 10/15/2023] Open
Abstract
The development of controlled drug delivery systems, in the form of microparticles, is an important area of experimental pharmacology. The success of the design and the quality of the obtained microparticles are determined by the method of manufacture and the properties of the material used as a carrier. The goal is to obtain and characterize microparticles depending on their method of preparation, the chemical composition of the polymer and the load of the drugs. To obtain microparticles, four types of degradable PHAs, differing in their chemical compositions, degrees of crystallinity, molecular weights and temperature characteristics, were used (poly-3-hydroxybutyrate and copolymers 3-hydroxybutyric-co-3-hydroxyvaleric acid, 3-hydroxybutyric-co-4-hydroxybutyric acid, and 3-hydroxybutyric-co-3-hydroxyhexanoic acid). The characteristics of microparticles from PHAs were studied. Good-quality particles with an average particle diameter from 0.8 to 65.0 μm, having satisfactory ζ potential values (from -18 to -50 mV), were obtained. The drug loading content, encapsulation efficiency and in vitro release were characterized. Composite microparticles based on PHAs with additives of polyethylene glycol and polylactide-co-glycolide, and loaded with ceftriaxone and 5-fluorouracil, showed antibacterial and antitumor effects in E. coli and HeLa cultures. The results indicate the high potential of PHAs for the design of modern and efficient drug delivery systems.
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Affiliation(s)
- Anastasiya V. Murueva
- Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS” (IBP SB RAS), 50/50 Akademgorodok, 660036 Krasnoyarsk, Russia; (A.V.M.); (E.I.S.)
- Institute of Fundamental Biology and Biotechnology, Siberian Federal University, 79 Svobodny Pr., 660041 Krasnoyarsk, Russia;
| | - Anna M. Shershneva
- Institute of Fundamental Biology and Biotechnology, Siberian Federal University, 79 Svobodny Pr., 660041 Krasnoyarsk, Russia;
| | - Ekaterina I. Shishatskaya
- Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS” (IBP SB RAS), 50/50 Akademgorodok, 660036 Krasnoyarsk, Russia; (A.V.M.); (E.I.S.)
- Institute of Fundamental Biology and Biotechnology, Siberian Federal University, 79 Svobodny Pr., 660041 Krasnoyarsk, Russia;
- Chemistry Engineering Centre, ITMO University, Kronverkskiy Prospekt, 49A, 197101 Saint Petersburg, Russia
| | - Tatiana G. Volova
- Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS” (IBP SB RAS), 50/50 Akademgorodok, 660036 Krasnoyarsk, Russia; (A.V.M.); (E.I.S.)
- Institute of Fundamental Biology and Biotechnology, Siberian Federal University, 79 Svobodny Pr., 660041 Krasnoyarsk, Russia;
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Liu Y, Ashmawy S, Latta L, Weiss AV, Kiefer AF, Nasr S, Loretz B, Hirsch AKH, Lee S, Lehr CM. pH-Responsive Dynaplexes as Potent Apoptosis Inductors by Intracellular Delivery of Survivin siRNA. Biomacromolecules 2023; 24:3742-3754. [PMID: 37523746 DOI: 10.1021/acs.biomac.3c00424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Gene knockdown by siRNA offers an unrestricted choice of targets and specificity based on the principle of complementary Watson-Crick base pairing with mRNA. However, the negative charge, large molecular size, and susceptibility to enzymatic degradation of siRNA impede its successful transfection, hence limiting its potential for therapeutic use. The development of efficient and safe siRNA transfection agents is, therefore, critical for siRNA-based therapy. Herein, we developed a protein-based biodynamic polymer (biodynamer) that showed potential as a siRNA transfection vector, owing to its excellent biocompatibility, easy tunability, and dynamic polymerization under acidic environments. The positively charged biodynamers formed stable dynamic nanocomplexes (XL-DPs, hydrodynamic diameter of approximately 104 nm) with siRNA via electrostatic interactions and chemical cross-linking. As a proof of concept, the optimized XL-DPs were stable in physiological conditions with serum proteins and demonstrated significant pH-dependent size change and degradability, as well as siRNA release capability. The minimal cytotoxicity and excellent cellular uptake of XL-DPs effectively supported the intracellular delivery of siRNA. Our study demonstrated that the XL-DPs in survivin siRNA delivery enabled potent knockdown of survivin mRNA and induced notable apoptosis of carcinoma cells (2.2 times higher than a lipid-based transfection agent, Lipofectamine 2000). These findings suggested that our XL-DPs hold immense potential as a promising platform for siRNA delivery and can be considered strong candidates in the advancement of next-generation transfection agents.
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Affiliation(s)
- Yun Liu
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)─Helmholtz Centre for Infection Research (HZI), Campus E 8.1, 66123 Saarbrücken, Germany
- Department of Pharmacy, Saarland University, 66123 Saarbrücken, Germany
| | - Salma Ashmawy
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)─Helmholtz Centre for Infection Research (HZI), Campus E 8.1, 66123 Saarbrücken, Germany
- Department of Pharmacy, Saarland University, 66123 Saarbrücken, Germany
| | - Lorenz Latta
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)─Helmholtz Centre for Infection Research (HZI), Campus E 8.1, 66123 Saarbrücken, Germany
| | | | - Alexander F Kiefer
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)─Helmholtz Centre for Infection Research (HZI), Campus E 8.1, 66123 Saarbrücken, Germany
| | - Sarah Nasr
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)─Helmholtz Centre for Infection Research (HZI), Campus E 8.1, 66123 Saarbrücken, Germany
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt
| | - Brigitta Loretz
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)─Helmholtz Centre for Infection Research (HZI), Campus E 8.1, 66123 Saarbrücken, Germany
| | - Anna K H Hirsch
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)─Helmholtz Centre for Infection Research (HZI), Campus E 8.1, 66123 Saarbrücken, Germany
- Department of Pharmacy, Saarland University, 66123 Saarbrücken, Germany
| | - Sangeun Lee
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)─Helmholtz Centre for Infection Research (HZI), Campus E 8.1, 66123 Saarbrücken, Germany
- Department of Pharmacy, Saarland University, 66123 Saarbrücken, Germany
| | - Claus-Michael Lehr
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)─Helmholtz Centre for Infection Research (HZI), Campus E 8.1, 66123 Saarbrücken, Germany
- Department of Pharmacy, Saarland University, 66123 Saarbrücken, Germany
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Kim CH, Lee S, Choi JY, Lyu MJ, Jung HM, Goo YT, Kang MJ, Choi YW. Functionalized Lipid Nanocarriers for Simultaneous Delivery of Docetaxel and Tariquidar to Chemoresistant Cancer Cells. Pharmaceuticals (Basel) 2023; 16:ph16030349. [PMID: 36986449 PMCID: PMC10058271 DOI: 10.3390/ph16030349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/20/2023] [Accepted: 02/21/2023] [Indexed: 03/02/2023] Open
Abstract
The simultaneous drug delivery efficiency of a co-loaded single-carrier system of docetaxel (DTX)- and tariquidar (TRQ)-loaded nanostructured lipid carrier (NLC) functionalized with PEG and RIPL peptide (PRN) (D^T-PRN) was compared with that of a physically mixed dual-carrier system of DTX-loaded PRN (D-PRN) and TRQ-loaded PRN (T-PRN) to overcome DTX mono-administration-induced multidrug resistance. NLC samples were prepared using the solvent emulsification evaporation technique and showed homogeneous spherical morphology, with nano-sized dispersion (<220 nm) and zeta potential values of −15 to −7 mV. DTX and/or TRQ was successfully encapsulated in NLC samples (>95% encapsulation efficiency and 73–78 µg/mg drug loading). In vitro cytotoxicity was concentration-dependent; D^T-PRN exhibited the highest MDR reversal efficiency, with the lowest combination index value, and increased the cytotoxicity and apoptosis in MCF7/ADR cells by inducing cell-cycle arrest in the G2/M phase. A competitive cellular uptake assay using fluorescent probes showed that, compared to the dual nanocarrier system, the single nanocarrier system exhibited better intracellular delivery efficiency of multiple probes to target cells. In the MCF7/ADR-xenografted mouse models, simultaneous DTX and TRQ delivery using D^T-PRN significantly suppressed tumor growth as compared to other treatments. A single co-loaded system for PRN-based co-delivery of DTX/TRQ (1:1, w/w) constitutes a promising therapeutic strategy for drug-resistant breast cancer cells.
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Affiliation(s)
- Chang Hyun Kim
- College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Sangkil Lee
- College of Pharmacy, Keimyung University, 1095 Dalgubeol-daero, Dalseo-gu, Daegu 42601, Republic of Korea
| | - Ji Yeh Choi
- Department of Psychology, York University, 4700 Kneele St., Toronto, ON M3J 1P3, Canada
| | - Min Jeong Lyu
- College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Hyun Min Jung
- College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Yoon Tae Goo
- College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Myung Joo Kang
- College of Pharmacy, Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan 31116, Republic of Korea
| | - Young Wook Choi
- College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
- Correspondence:
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Zhu J, Liu Z, Pu Y, Xu J, Zhang S, Bao Y. Green synthesized gold nanoparticles from Pseudobulbus Cremastrae seu Pleiones show efficacy against hepatic carcinoma potentially through immunoregulation. Drug Deliv 2022; 29:1983-1993. [PMID: 35762637 PMCID: PMC9246265 DOI: 10.1080/10717544.2022.2092238] [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] [Indexed: 11/11/2022] Open
Abstract
Nanobiotechnology, the interface between biology and nanotechnology, has recently emerged in full bloom in the medical field due to its minimal side-effects and high efficiency. To broaden the application of nanobiotechnology, we composed gold nanoparticles from the extract of Pseudobulbus Cremastrae seu Pleiones (PCSP) using an efficient and green procedure. The biosynthesized Au nanoparticles containing PCSP (PCSP-AuNPs) were characterized by UV-vis spectroscopic, transmission electron microscopy (TEM), atomic force microscopy (AFM), dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FT-IR), and Energy Dispersive X-ray (EDAX). After verifying the stability of PCSP-AuNPs, we detected its biosafety and immune-modulatory effects on RAW264.7 in vitro using NO assay, ELISA (TNF-α, IL-12p70, and IL-1β), and CCK-8 test. Furthermore, we examined the direct in vitro effects of PCSP-AuNPs on hepatocellular carcinomas (HCCs). Finally, we evaluated the immune regulation of PCSP-AuNPs using a mouse model with H22-tumor by testing the index of immune organs, splenic lymphocyte proliferation, cytokines levels (TNF-α and IL-10), and the CD4+/CD8+ cell ratio in the peripheral blood. Immunohistochemical analyses including H&E and PCNA staining were performed to investigate the anti-cancer efficacy and biocompatibility of PCSP-AuNPs. We found that PCSP-AuNPs not just possessed low toxicity, but also improved the immune-mediated antitumor response as compared to PCSP alone, suggesting its potential as a novel and efficient drug for liver cancer therapy.
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Affiliation(s)
- Junmo Zhu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zijing Liu
- Department of Gastroenterology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Youwei Pu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jie Xu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Sitong Zhang
- Department of Clinical Laboratory, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yixi Bao
- Department of Clinical Laboratory, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Suwannoi P, Sarisuta N. Preparation process by desolvation method for enhanced loading of acyclovir nanoparticles. PHARMACIA 2022. [DOI: 10.3897/pharmacia.69.e86907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The aim of this investigation was to qualitatively study on preparation process of enhanced loading acyclovir (ACV) in ACV-loaded bovine serum albumin (BSA) prepared by desolvation method with submerged jet of desolvating agent. The prepared ACV-loaded BSA nanoparticles in sterile water for injection (SWI) and isotonic trehalose solution were shown to be monodisperse with sizes of around 120 to 200 nm and zeta potentials of around -7 to -50 mV. However, those in phosphate buffer saline (PBS) were found to exhibit much larger sizes with polydispersity, which might be attributed to the effect of ionic strength. The loading efficiency was found to be around 60%. An increase in the amount of ACV added to the system could significantly improve the loading capacity by almost the same ratio, which may be due to molecular mixing behavior of submerged jet of desolvating agent.
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Leonard H, Jiang X, Arshavsky-Graham S, Holtzman L, Haimov Y, Weizman D, Halachmi S, Segal E. Shining light in blind alleys: deciphering bacterial attachment in silicon microstructures. NANOSCALE HORIZONS 2022; 7:729-742. [PMID: 35616534 DOI: 10.1039/d2nh00130f] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
With new advances in infectious disease, antifouling surfaces, and environmental microbiology research comes the need to understand and control the accumulation and attachment of bacterial cells on a surface. Thus, we employ intrinsic phase-shift reflectometric interference spectroscopic measurements of silicon diffraction gratings to non-destructively observe the interactions between bacterial cells and abiotic, microstructured surfaces in a label-free and real-time manner. We conclude that the combination of specific material characteristics (i.e., substrate surface charge and topology) and characteristics of the bacterial cells (i.e., motility, cell charge, biofilm formation, and physiology) drive bacteria to adhere to a particular surface, often leading to a biofilm formation. Such knowledge can be exploited to predict antibiotic efficacy and biofilm formation, and enhance surface-based biosensor development, as well as the design of anti-biofouling strategies.
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Affiliation(s)
- Heidi Leonard
- Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
| | - Xin Jiang
- Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
| | - Sofia Arshavsky-Graham
- Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
| | - Liran Holtzman
- Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
| | - Yuri Haimov
- Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
| | - Daniel Weizman
- Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
| | - Sarel Halachmi
- Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
- Department of Urology, Bnai Zion Medical Center, Haifa, 3104800, Israel
| | - Ester Segal
- Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
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Kim CH, Lee TH, Kim BD, Kim HK, Lyu MJ, Jung HM, Goo YT, Kang MJ, Lee S, Choi YW. Co-administration of tariquidar using functionalized nanostructured lipid carriers overcomes resistance to docetaxel in multidrug resistant MCF7/ADR cells. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Boswellia sacra Extract-Loaded Mesoporous Bioactive Glass Nano Particles: Synthesis and Biological Effects. Pharmaceutics 2022; 14:pharmaceutics14010126. [PMID: 35057022 PMCID: PMC8779989 DOI: 10.3390/pharmaceutics14010126] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 12/29/2021] [Accepted: 12/30/2021] [Indexed: 02/04/2023] Open
Abstract
Bioactive glasses (BGs) are being increasingly considered for numerous biomedical applications. The loading of natural compounds onto BGs to increase the BG biological activity is receiving increasing attention. However, achieving efficient loading of phytotherapeutic compounds onto the surface of bioactive glass is challenging. The present work aimed to prepare novel amino-functionalized mesoporous bioactive glass nanoparticles (MBGNs) loaded with the phytotherapeutic agent Boswellia sacra extract. The prepared amino-functionalized MBGNs showed suitable loading capacity and releasing time. MBGNs (nominal composition: 58 wt% SiO2, 37 wt% CaO, 5 wt% P2O5) were prepared by sol-gel-modified co-precipitation method and were successfully surface-modified by using 3-aminopropyltriethoxysilane (APTES). In order to evaluate MBGNs loaded with Boswellia sacra, morphological analysis, biological studies, physico-chemical and release studies were performed. The successful functionalization and loading of the natural compound were confirmed with FTIR, zeta-potential measurements and UV-Vis spectroscopy, respectively. Structural and morphological evaluation of MBGNs was done by XRD, SEM and BET analyses, whereas the chemical analysis of the plant extract was done using GC/MS technique. The functionalized MBGNs showed high loading capacity as compared to non-functionalized MBGNs. The release studies revealed that Boswellia sacra molecules were released via controlled diffusion and led to antibacterial effects against S. aureus (Gram-positive) bacteria. Results of cell culture studies using human osteoblastic-like cells (MG-63) indicated better cell viability of the Boswellia sacra-loaded MBGNs as compared to the unloaded MBGNs. Therefore, the strategy of combining the properties of MBGNs with the therapeutic effects of Boswellia sacra represents a novel, convenient step towards the development of phytotherapeutic-loaded antibacterial, inorganic materials to improve tissue healing and regeneration.
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Almeida JMFD, Damasceno Júnior E, Silva EMF, Veríssimo LM, Fernandes NS. pH-responsive release system of topiramate transported on silica nanoparticles by melting method. Drug Dev Ind Pharm 2020; 47:126-145. [PMID: 33295812 DOI: 10.1080/03639045.2020.1862171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Incorporating drugs into silica matrices by the melting method can be applied to obtain drug delivery systems because they are governed by electrostatic type interactions, hydrogen bonding and hydrophilic-hydrophobic interactions between the drug and the silica surface. the melting method is an environmentally correct tool since it is free of organic solvent, low cost and with easy execution for the incorporation of drugs in silicas. Drugs delivery systems are very important for improving the treatment of chronic diseases. Topiramate (TPM) is a potent antiepileptic used in high daily doses as it has low bioavailability. In this context, silica nanoparticles (NPS) were used as an inorganic matrix for TPM transport in (in vitro) release studies. The TPM was incorporated into the NPS by hot melt loading employing a new carrier preparation methodology (NPS/TPM) using a thermobalance (by Thermogravimetry-TG) with high temperature control system. The release study using dissolution media simulating gastrointestinal at pH 1.2 (stomach) and 7.4 (intestine), showed that NPS release TPM in a prolonged and pH-responsive manner. The drug was released at intestinal pH ensuring greater absorption, allowing fewer daily doses and less adverse effects. The kinetic study demonstrated the best fit to the zero-order model proving the pH-responsive profile of the developed system.
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Affiliation(s)
- Janiele Mayara Ferreira de Almeida
- Laboratório de Química Analítica e Meio Ambiente, Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova, Natal-RN, Brasil
| | - Elmar Damasceno Júnior
- Laboratório de Química Analítica e Meio Ambiente, Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova, Natal-RN, Brasil
| | - Elania Maria Fernandes Silva
- Laboratório de Química Analítica e Meio Ambiente, Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova, Natal-RN, Brasil
| | - Lourena Mafra Veríssimo
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal-RN, Brasil
| | - Nedja Suely Fernandes
- Laboratório de Química Analítica e Meio Ambiente, Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova, Natal-RN, Brasil
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13
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PH-responsive strontium nanoparticles for targeted gene therapy against mammary carcinoma cells. Asian J Pharm Sci 2020; 16:236-252. [PMID: 33995617 PMCID: PMC8105532 DOI: 10.1016/j.ajps.2020.11.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/27/2020] [Accepted: 11/06/2020] [Indexed: 01/09/2023] Open
Abstract
Genetic intervention via the delivery of functional genes such as plasmid DNA (pDNA) and short-interfering RNA (siRNA) offers a great way to treat many single or multiple genetic defects effectively, including mammary carcinoma. Delivery of naked therapeutic genes or siRNAs is, however, short-lived due to biological clearance by scavenging nucleases and circulating monocytes. Low cellular internalization of negatively-charged nucleic acids further causes low transfection or silencing activity. Development of safe and effectual gene vectors is therefore undeniably crucial to the success of nucleic acid delivery. Inorganic nanoparticles have attracted considerable attention in the recent years due to their high loading capacity and encapsulation activity. Here we introduce strontium salt-based nanoparticles, namely, strontium sulfate, strontium sulfite and strontium fluoride as new inorganic nanocarriers. Generated strontium salt particles were found to be nanosized with high affinity towards negatively-charged pDNA and siRNA. Degradation of the particles was seen with a drop in pH, suggesting their capacity to respond to pH change and undergo dissolution at endosomal pH to release the genetic materials. While the particles are relatively nontoxic towards the cells, siRNA-loaded SrF2 and SrSO3 particles exerted superior transgene expression and knockdown activity of MAPK and AKT, leading to inhibition of their phosphorylation to a distinctive extent in both MCF-7 and 4T1 cells. Strontium salt nanoparticles have thus emerged as a promising tool for applications in cancer gene therapy.
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14
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Gu Y, Bai L, Zhang Y, Zhang H, Xing D, Tian L, Zhou Y, Hao J, Liu Y. Liposome as drug delivery system enhance anticancer activity of iridium (III) complex. J Liposome Res 2020; 31:342-355. [PMID: 32892672 DOI: 10.1080/08982104.2020.1818779] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Herein an Ir(III) complex [Ir(Hppy)2(HMNPIP)](PF6) (Ir1, Hppy = 2-phenylpyridine, HMNPIP = 2-(1H-imidazo[4,5-f][1, 10]phenanthroline-3-yl)-6-methoxy-4-nitrophenol) was prepared and characterized. Due to the low anticancer activity of Ir1 when administered free drug, we prepared a liposome Ir1Lipo encapsulated form of Ir1 to improve the antitumor effect, furthermore, we explored the antitumor mechanism of both forms in vitro experiments on HepG2 cells. We investigated the inhibitory efficiency of Ir1 and Ir1Lipo on cell viability and proliferation using MTT (MTT = 3-(4,5-dimethylthiazole)-2,5-diphenltetraazolium bromide) and colony-forming assay. Intracellular accumulation of reactive oxygen species (ROS) was examined using a fluorescence microscope (High Content Screening System, ImageXpress Micro XLS System, Molecular Devices LLC, Sunnyvale, CA), programmed cell death cells stained with acridine orange/ethidium bromide (AO/EB) using flow cytometry detection and western blot have been performed. An in vivo study where HepG2 cells were transplanted into nude nice as xenografts. Tumour volume and body weight were monitored during the 10 days of administration. After encapsulation in liposomes Ir1Lipo displayed high potency against a variety of tumour cells in vitro, especially against HepG2 (IC50 = 4.6 ± 0.5 μM). Mechanism studies indicated that Ir1Lipo initiated apoptosis by generating intracellular ROS that regulate lysosomal-mitochondrial dysfunction, followed by microtubule disruption that subsequently leads to a G0/G1 phase of cell cycle arrest. Additionally, Ir1Lipo significantly curbed tumour growth in nude mice. The tumour inhibitory rate was 51.2% (5.6 mg/kg). Therefore, liposome as a drug delivery system greatly enhances anticancer activity of Ir1 by a factor of relatively minor side effects.
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Affiliation(s)
- Yiying Gu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Lan Bai
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Yuanyuan Zhang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Huiwen Zhang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Degang Xing
- School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Li Tian
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Yi Zhou
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Jing Hao
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Yunjun Liu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, PR China
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15
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Ravnik M, Everts JC. Topological-Defect-Induced Surface Charge Heterogeneities in Nematic Electrolytes. PHYSICAL REVIEW LETTERS 2020; 125:037801. [PMID: 32745396 DOI: 10.1103/physrevlett.125.037801] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 06/16/2020] [Indexed: 06/11/2023]
Abstract
We show that topological defects in an ion-doped nematic liquid crystal can be used to manipulate the surface charge distribution on chemically homogeneous, charge-regulating external surfaces, using a minimal theoretical model. In particular, the location and type of the defect encodes the precise distribution of surface charges and the effect is enhanced when the liquid crystal is flexoelectric. We demonstrate the principle for patterned surfaces and charged colloidal spheres. More generally, our results indicate an interesting approach to control surface charges on external surfaces without changing the surface chemistry.
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Affiliation(s)
- Miha Ravnik
- Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, 1000 Ljubljana, Slovenia
- Department of Condensed Matter Physics, Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
| | - Jeffrey C Everts
- Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, 1000 Ljubljana, Slovenia
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16
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Trac NT, Chung EJ. Peptide-based targeting of immunosuppressive cells in cancer. Bioact Mater 2020; 5:92-101. [PMID: 31956738 PMCID: PMC6962647 DOI: 10.1016/j.bioactmat.2020.01.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 01/06/2020] [Accepted: 01/09/2020] [Indexed: 02/07/2023] Open
Abstract
Cancer progression is marked by the infiltration of immunosuppressive cells, such as tumor-associated macrophages (TAMs), regulatory T lymphocytes (Tregs), and myeloid-derived suppressor cells (MDSCs). These cells play a key role in abrogating the cytotoxic T lymphocyte-mediated (CTL) immune response, allowing tumor growth to proceed unabated. Furthermore, targeting these immunosuppressive cells through the use of peptides and peptide-based nanomedicine has shown promising results. Here we review the origins and functions of immunosuppressive cells in cancer progression, peptide-based systems used in their targeting, and explore future avenues of research regarding cancer immunotherapy. The success of these studies demonstrates the importance of the tumor immune microenvironment in the propagation of cancer and the potential of peptide-based nanomaterials as immunomodulatory agents.
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Affiliation(s)
- Noah T. Trac
- Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, USA
| | - Eun Ji Chung
- Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, USA
- Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA, USA
- Division of Nephrology and Hypertension, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Department of Vascular Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, University of Southern California, Los Angeles, CA, USA
- Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
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17
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Enhancement in site-specific delivery of carvacrol for potential treatment of infected wounds using infection responsive nanoparticles loaded into dissolving microneedles: A proof of concept study. Eur J Pharm Biopharm 2020; 147:57-68. [DOI: 10.1016/j.ejpb.2019.12.008] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 12/14/2019] [Accepted: 12/16/2019] [Indexed: 02/05/2023]
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18
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Sugar and Polymer Excipients Enhance Uptake and Splice-Switching Activity of Peptide-Dendrimer/Lipid/Oligonucleotide Formulations. Pharmaceutics 2019; 11:pharmaceutics11120666. [PMID: 31835435 PMCID: PMC6955847 DOI: 10.3390/pharmaceutics11120666] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 11/19/2019] [Accepted: 12/06/2019] [Indexed: 12/13/2022] Open
Abstract
Non-viral transfection vectors are commonly used for oligonucleotide (ON) delivery but face many challenges before reaching the desired compartments inside cells. With the support of additional compounds, it might be more feasible for a vector to endure the barriers and achieve efficient delivery. In this report, we screened 18 different excipients and evaluated their effect on the performance of peptide dendrimer/lipid vector to deliver single-stranded, splice-switching ONs under serum conditions. Transfection efficiency was monitored in four different reporter cell lines by measuring splice-switching activity on RNA and protein levels. All reporter cell lines used had a mutated human β-globin intron 2 sequence interrupting the luciferase gene, which led to an aberrant splicing of luciferase pre-mRNA and subsidence of luciferase protein translation. In the HeLa Luc/705 reporter cell line (a cervical cancer cell line), the lead excipients (Polyvinyl derivatives) potentiated the splice-switching activity up to 95-fold, compared to untreated cells with no detected cytotoxicity. Physical characterization revealed that lead excipients decreased the particle size and the zeta potential of the formulations. In vivo biodistribution studies emphasized the influence of formulations as well as the type of excipients on biodistribution profiles of the ON. Subsequently, we suggest that the highlighted impact of tested excipients would potentially assist in formulation development to deliver ON therapeutics in pre-clinical and clinical settings.
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19
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Mir M, Ahmed N, Permana AD, Rodgers AM, Donnelly RF, Rehman A. Enhancement in Site-Specific Delivery of Carvacrol against Methicillin Resistant Staphylococcus aureus Induced Skin Infections Using Enzyme Responsive Nanoparticles: A Proof of Concept Study. Pharmaceutics 2019; 11:E606. [PMID: 31766227 PMCID: PMC6921059 DOI: 10.3390/pharmaceutics11110606] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 10/29/2019] [Accepted: 11/11/2019] [Indexed: 01/08/2023] Open
Abstract
Methicillin resistant Staphylococcus aureus (MRSA) induced skin infections have become a challenging problem due to the escalating antibiotic resistance. Carvacrol (CAR) has been reported to be effective against MRSA. However, due to its characteristics, CAR exhibits low skin retention. In this study, CAR was formulated into site-specific nanoparticle (NPs) delivery system using poly(ε-caprolactone) (PCL), following incorporation into a hydrogel matrix to facilitate dermal delivery. The release study exhibited significantly higher release of CAR from PCL NPs in the presence of bacterial lipase, highlighting its potential for differential delivery. Moreover, encapsulation of CAR in PCL NPs resulted in a two-fold increase in its anti-MRSA activity. Dermatokinetic studies revealed that the NPs loaded hydrogel was able to enhance skin retention of CAR after 24 h (83.29 ± 3.15%), compared to free CAR-loaded hydrogel (0.85 ± 0.14%). Importantly, this novel approach exhibited effective antimicrobial activity in an ex-vivo skin infection model. Hence, these findings have proven the concept that the loading of CAR into a responsive NPs system can lead to sustained antimicrobial effect at the desired site, and may provide a novel effective approach for treatment of MRSA induced skin infections. However, further studies must be conducted to investigate in-vivo efficacy of the developed system in an appropriate infection model.
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Affiliation(s)
- Maria Mir
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (M.M.); (N.A.)
- School of Pharmacy, Medical Biology Centre, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (A.D.P.); (A.M.R.)
| | - Naveed Ahmed
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (M.M.); (N.A.)
| | - Andi Dian Permana
- School of Pharmacy, Medical Biology Centre, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (A.D.P.); (A.M.R.)
- Department of Pharmaceutics, Faculty of Pharmacy, Hasanuddin University, Makassar 90234, Indonesia
| | - Aoife Maria Rodgers
- School of Pharmacy, Medical Biology Centre, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (A.D.P.); (A.M.R.)
| | - Ryan F. Donnelly
- School of Pharmacy, Medical Biology Centre, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (A.D.P.); (A.M.R.)
| | - Asim.ur. Rehman
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (M.M.); (N.A.)
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20
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Suwannoi P, Chomnawang M, Tunsirikongkon A, Phongphisutthinan A, Müller-Goymann CC, Sarisuta N. TAT-surface modified acyclovir-loaded albumin nanoparticles as a novel ocular drug delivery system. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.05.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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21
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Zinc-Chelating Mechanism of Sea Cucumber ( Stichopus japonicus)-Derived Synthetic Peptides. Mar Drugs 2019; 17:md17080438. [PMID: 31349695 PMCID: PMC6723998 DOI: 10.3390/md17080438] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 07/23/2019] [Accepted: 07/24/2019] [Indexed: 12/24/2022] Open
Abstract
In this study, three synthetic zinc-chelating peptides (ZCPs) derived from sea cucumber hydrolysates with limited or none of the common metal-chelating amino-acid residues were analyzed by flame atomic absorption spectroscopy, circular dichroism spectroscopy, size exclusion chromatography, zeta-potential, Fourier transform infrared spectroscopy, Raman spectroscopy and nuclear magnetic resonance spectroscopy. The amount of zinc bound to the ZCPs reached maximum values with ZCP:zinc at 1:1, and it was not further increased by additional zinc presence. The secondary structures of ZCPs were slightly altered, whereas no formation of multimers was observed. Furthermore, zinc increased the zeta-potential value by neutralizing the negatively charged residues. Only free carboxyl in C-terminus of ZCPs was identified as the primary binding site of zinc. These results provide the theoretical foundation to understand the mechanism of zinc chelation by peptides.
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22
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Li Y, Chen S, Chang X, He F, Zhuo R. Efficient Co-delivery of Doxorubicin and Methotrexate by pH-Sensitive Dual-Functional Nanomicelles for Enhanced Synergistic Antitumor Efficacy. ACS APPLIED BIO MATERIALS 2019; 2:2271-2279. [DOI: 10.1021/acsabm.9b00230] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Youmei Li
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Shu Chen
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Xiupeng Chang
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Feng He
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Renxi Zhuo
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, China
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23
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Manj RZA, Chen X, Rehman WU, Zhu G, Luo W, Yang J. Big Potential From Silicon-Based Porous Nanomaterials: In Field of Energy Storage and Sensors. Front Chem 2018; 6:539. [PMID: 30467539 PMCID: PMC6235908 DOI: 10.3389/fchem.2018.00539] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 10/18/2018] [Indexed: 11/13/2022] Open
Abstract
Silicon nanoparticles (SiNPs) are the promising materials in the various applications due to their unique properties like large surface area, biocompatibility, stability, excellent optical and electrical properties. Surface, optical and electrical properties are highly dependent on particle size, doping of different materials and so on. Porous structures in silicon nanomaterials not only improve the specific surface area, adsorption, and photoluminescence efficiency but also provide numbers of voids as well as the high surface to volume ratio and enhance the adsorption ability. In this review, we focus on the significance of porous silicon/mesoporous silicon nanoparticles (pSiNPs/mSiNPs) in the applications of energy storage, sensors and bioscience. Silicon as anode material in the lithium-ion batteries (LIBs) faces a huge change in volume during charging/discharging which leads to cracking, electrical contact loss and unstable solid electrolyte interphase. To overcome challenges of Si anode in the LIBs, mSiNPs are the promising candidates with different structures and coating of different materials to enhance electrochemical properties. On the basis of optical properties with tunable wavelength, pSiNPs are catching good results in biosensors and gas sensors. The mSiNPs with different structures and modified surfaces are playing an important role in the detection of biomarkers, drug delivery and diagnosis of cancer and tumors.
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Affiliation(s)
- Rana Zafar Abbas Manj
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China
| | - Xinqi Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China.,School of Physics and Mechanical and Electrical Engineering, Hubei University of Education, Wuhan, China
| | - Waheed Ur Rehman
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China
| | - Guanjia Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China
| | - Wei Luo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China.,Institute of Functional Materials, Donghua University, Shanghai, China
| | - Jianping Yang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China.,Institute of Functional Materials, Donghua University, Shanghai, China
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Mesoporous Silicon Particles Favor the Induction of Long-Lived Humoral Responses in Mice to a Peptide-Based Vaccine. MATERIALS 2018; 11:ma11071083. [PMID: 29949862 PMCID: PMC6073586 DOI: 10.3390/ma11071083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 06/12/2018] [Accepted: 06/13/2018] [Indexed: 01/28/2023]
Abstract
Vaccinology faces the challenge of developing improved immunization approaches that are able to induce long-term immunity with the desired Th profile according to the pathology. In this context, new vehicles for efficient antigen delivery that exert adjuvant effects play a critical role in addressing this goal. Herein, mesoporous silicon particles (PSiP) were assessed as carriers for a peptide-based vaccine targeting the receptor for advanced glycation end products (RAGE), which is a relevant receptor in Alzheimer´s disease and other diseases. A RAGE peptide was adsorbed onto PSiP (PSiP vaccine) and administered to BALB/c mice, leading to immune responses that were similar in magnitude to those induced by the soluble peptide. However, the response induced by PSiP lasted for a significantly longer period when compared with the behavior of the group immunized with the peptide alone. Therefore, PSiP are proposed as carriers to enhance immune memory, which is critical in vaccination. This study opens interesting perspectives related to the application of PSiP in vaccinology.
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26
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Sen T, Barisik M. Size dependent surface charge properties of silica nano-channels: double layer overlap and inlet/outlet effects. Phys Chem Chem Phys 2018; 20:16719-16728. [PMID: 29881843 DOI: 10.1039/c8cp01906a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transport inside nano-channels and tubes is highly dependent on their surface charge properties. While previous studies assume that the charge density of a surface is a material property and independent of confinement size, this study properly characterized the surface charge of a nanochannel as a function of channel height and length under various solution conditions. By calculating the local surface charge based on local ionic concentrations, the surface charge of a nano-channel was studied by considering the effects of both overlapping electrical double layers (EDLs) and inlet/outlet regions. First, the surface charge of silica decreased with the increase in EDL overlap, which is characterized by the ratio of EDL thickness to channel height. Second, the local surface charge showed variation at the inlet/outlet regions where the channel's electrokinetics was in development. We defined a general entrance length as a function of EDL thickness for the electrokinetically developing part of different cases, after which the surface charge reached its equilibrium value and remained constant. Based on such length scales, we extended the existing theory to include nano-effects. A phenomenological model was developed, which can predict the average nano-channel surface charge as a function of EDL thickness, pH, channel length and channel height.
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Affiliation(s)
- Tumcan Sen
- Department of Mechanical Engineering, Izmir Institute of Technology, IZMIR, 35430, Turkey.
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27
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Tamarov K, Gongalsky M, Osminkina L, Huang Y, Omar M, Yakunin V, Ntziachristos V, Razansky D, Timoshenko V. Electrolytic conductivity-related radiofrequency heating of aqueous suspensions of nanoparticles for biomedicine. Phys Chem Chem Phys 2018; 19:11510-11517. [PMID: 28425519 DOI: 10.1039/c7cp00728k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The development of suitable contrast agents can significantly enhance the efficiency of modern imaging and treatment techniques, such as thermoacoustic (TA) tomography and radio-frequency (RF) hyperthermia of cancer. Here, we examine the heating of aqueous suspensions of silicon (Si) and gold (Au) nanoparticles (NPs) under RF irradiation in the MHz frequency range. The heating rate of aqueous suspensions of Si NPs exhibited non-monotonic dependency on the electrical conductivity of the suspension. The experimental results were explained by the mathematical model considering oscillating solvated ions as the main source of Joule heating. These ions could be the product of the dissolution of Si NPs or organic coating of Au NPs. Thus, the ions governed the conductivity of the suspensions, which in turn governs both the heating rate and the near-field RF TA response. The model predicted the contrast in different tissues taking into account both Joule heating and dielectric losses.
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Affiliation(s)
- Konstantin Tamarov
- Faculty of Physics, M. V. Lomonosov Moscow State University, 119991 Moscow, Russia. and Department of Applied Physics, University of Eastern Finland, 70211 Kuopio, Finland
| | - Maxim Gongalsky
- Faculty of Physics, M. V. Lomonosov Moscow State University, 119991 Moscow, Russia. and Institute of Biological and Medical Imaging, Helmholtz Zentrum München, 85764 Neuherberg, Germany
| | - Liubov Osminkina
- Faculty of Physics, M. V. Lomonosov Moscow State University, 119991 Moscow, Russia. and National Research Nuclear University "MEPhI", International Laboratory "Bionanophotonics", 115409 Moscow, Russia
| | - Yuanhui Huang
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, 85764 Neuherberg, Germany and Chair of Biological Imaging, Technische Universität München, 80333 Munich, Germany
| | - Murad Omar
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, 85764 Neuherberg, Germany and Chair of Biological Imaging, Technische Universität München, 80333 Munich, Germany
| | - Valery Yakunin
- Faculty of Physics, M. V. Lomonosov Moscow State University, 119991 Moscow, Russia.
| | - Vasilis Ntziachristos
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, 85764 Neuherberg, Germany and Chair of Biological Imaging, Technische Universität München, 80333 Munich, Germany
| | - Daniel Razansky
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, 85764 Neuherberg, Germany and Chair of Biological Imaging, Technische Universität München, 80333 Munich, Germany
| | - Victor Timoshenko
- Faculty of Physics, M. V. Lomonosov Moscow State University, 119991 Moscow, Russia. and National Research Nuclear University "MEPhI", International Laboratory "Bionanophotonics", 115409 Moscow, Russia
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28
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Antoniraj MG, Ayyavu M, Henry LJK, Nageshwar Rao G, Natesan S, Sundar DS, Kandasamy R. Cytocompatible chitosan-graft-mPEG-based 5-fluorouracil-loaded polymeric nanoparticles for tumor-targeted drug delivery. Drug Dev Ind Pharm 2017; 44:365-376. [DOI: 10.1080/03639045.2017.1371741] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- M. Gover Antoniraj
- Department of Pharmaceutical Technology, Centre for Excellence in Nanobio Translational Research (CENTRE), Anna University, BIT Campus, Tiruchirappalli, India
| | - Mahesh Ayyavu
- Centre for Excellence in Genomic Sciences, School of Biological Sciences, Madurai Kamaraj University, Madurai, India
| | - Linda Jeeva Kumari Henry
- Department of Pharmaceutical Technology, Centre for Excellence in Nanobio Translational Research (CENTRE), Anna University, BIT Campus, Tiruchirappalli, India
- National Facility for Drug Development for Academia, Pharmaceutical and Allied Industries (NFDD), Anna University, BIT Campus, Tiruchirappalli, Tamil Nadu, India
| | - Goutham Nageshwar Rao
- Centre for Excellence in Genomic Sciences, School of Biological Sciences, Madurai Kamaraj University, Madurai, India
| | - Subramanian Natesan
- Department of Pharmaceutical Technology, Centre for Excellence in Nanobio Translational Research (CENTRE), Anna University, BIT Campus, Tiruchirappalli, India
- National Facility for Drug Development for Academia, Pharmaceutical and Allied Industries (NFDD), Anna University, BIT Campus, Tiruchirappalli, Tamil Nadu, India
| | - D. Sathish Sundar
- National Facility for Drug Development for Academia, Pharmaceutical and Allied Industries (NFDD), Anna University, BIT Campus, Tiruchirappalli, Tamil Nadu, India
| | - Ruckmani Kandasamy
- Department of Pharmaceutical Technology, Centre for Excellence in Nanobio Translational Research (CENTRE), Anna University, BIT Campus, Tiruchirappalli, India
- National Facility for Drug Development for Academia, Pharmaceutical and Allied Industries (NFDD), Anna University, BIT Campus, Tiruchirappalli, Tamil Nadu, India
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Suwannoi P, Chomnawang M, Sarisuta N, Reichl S, Müller-Goymann CC. Development of Acyclovir-Loaded Albumin Nanoparticles and Improvement of Acyclovir Permeation Across Human Corneal Epithelial T Cells. J Ocul Pharmacol Ther 2017; 33:743-752. [DOI: 10.1089/jop.2017.0057] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
- Panita Suwannoi
- Department of Manufacturing Pharmacy, Mahidol University, Bangkok, Thailand
| | - Mullika Chomnawang
- Department of Microbiology, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand
| | - Narong Sarisuta
- Department of Manufacturing Pharmacy, Mahidol University, Bangkok, Thailand
- Division of Pharmaceutical Sciences, Faculty of Pharmacy, Thammasat University, Pathumthani, Thailand
| | - Stephan Reichl
- Institut für Pharmazeutische Technologie, Technische Universität Braunschweig, Braunschweig, Germany
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Kaasalainen M, Aseyev V, von Haartman E, Karaman DŞ, Mäkilä E, Tenhu H, Rosenholm J, Salonen J. Size, Stability, and Porosity of Mesoporous Nanoparticles Characterized with Light Scattering. NANOSCALE RESEARCH LETTERS 2017; 12:74. [PMID: 28124301 PMCID: PMC5267583 DOI: 10.1186/s11671-017-1853-y] [Citation(s) in RCA: 120] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 01/13/2017] [Indexed: 05/09/2023]
Abstract
Silicon-based mesoporous nanoparticles have been extensively studied to meet the challenges in the drug delivery. Functionality of these nanoparticles depends on their properties which are often changing as a function of particle size and surrounding medium. Widely used characterization methods, dynamic light scattering (DLS), and transmission electron microscope (TEM) have both their weaknesses. We hypothesize that conventional light scattering (LS) methods can be used for a rigorous characterization of medium sensitive nanoparticles' properties, like size, stability, and porosity. Two fundamentally different silicon-based nanoparticles were made: porous silicon (PSi) from crystalline silicon and silica nanoparticles (SN) through sol-gel process. We studied the properties of these mesoporous nanoparticles with two different multiangle LS techniques, DLS and static light scattering (SLS), and compared the results to dry-state techniques, TEM, and nitrogen sorption. Comparison of particle radius from TEM and DLS revealed significant overestimation of the DLS result. Regarding to silica nanoparticles, the overestimation was attributed to agglomeration by analyzing radius of gyration and hydrodynamic radius. In case of PSi nanoparticles, strong correlation between LS result and specific surface area was found. Our results suggest that the multiangle LS methods could be used for the size, stability, and structure characterization of mesoporous nanoparticles.
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Affiliation(s)
- Martti Kaasalainen
- Laboratory of Industrial Physics, Department of Physics and Astronomy, University of Turku, FI-20500 Turku, Finland
| | - Vladimir Aseyev
- Department of Chemistry, University of Helsinki, FI-00014 HY Helsinki, Finland
| | - Eva von Haartman
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, FI-20520 Turku, Finland
| | - Didem Şen Karaman
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, FI-20520 Turku, Finland
| | - Ermei Mäkilä
- Laboratory of Industrial Physics, Department of Physics and Astronomy, University of Turku, FI-20500 Turku, Finland
| | - Heikki Tenhu
- Department of Chemistry, University of Helsinki, FI-00014 HY Helsinki, Finland
| | - Jessica Rosenholm
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, FI-20520 Turku, Finland
| | - Jarno Salonen
- Laboratory of Industrial Physics, Department of Physics and Astronomy, University of Turku, FI-20500 Turku, Finland
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Inkjet Printing of Drug-Loaded Mesoporous Silica Nanoparticles-A Platform for Drug Development. Molecules 2017; 22:molecules22112020. [PMID: 29160839 PMCID: PMC6150386 DOI: 10.3390/molecules22112020] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 11/12/2017] [Accepted: 11/17/2017] [Indexed: 12/22/2022] Open
Abstract
Mesoporous silica nanoparticles (MSNs) have shown great potential in improving drug delivery of poorly water soluble (BCS class II, IV) and poorly permeable (BCS class III, IV) drugs, as well as facilitating successful delivery of unstable compounds. The nanoparticle technology would allow improved treatment by reducing adverse reactions of currently approved drugs and possibly reintroducing previously discarded compounds from the drug development pipeline. This study aims to highlight important aspects in mesoporous silica nanoparticle (MSN) ink formulation development for digital inkjet printing technology and to advice on choosing a method (2D/3D) for nanoparticle print deposit characterization. The results show that both unfunctionalized and polyethyeleneimine (PEI) surface functionalized MSNs, as well as drug-free and drug-loaded MSN-PEI suspensions, can be successfully inkjet-printed. Furthermore, the model BCS class IV drug remained incorporated in the MSNs and the suspension remained physically stable during the processing time and steps. This proof-of-concept study suggests that inkjet printing technology would be a flexible deposition method of pharmaceutical MSN suspensions to generate patterns according to predefined designs. The concept could be utilized as a versatile drug screening platform in the future due to the possibility of accurately depositing controlled volumes of MSN suspensions on various materials.
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Mercaptan acids modified amphiphilic copolymers for efficient loading and release of doxorubicin. Colloids Surf B Biointerfaces 2017; 153:220-228. [PMID: 28258030 DOI: 10.1016/j.colsurfb.2017.02.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 02/16/2017] [Accepted: 02/16/2017] [Indexed: 11/22/2022]
Abstract
In this paper, four different kinds of mercaptan acids modified amphiphilic copolymers mPEG-b-PATMC-g-SRCOOH (R=CH2, CH2CH2, (CH2)10 and CH(COOH)CH2) were successfully synthesized by thiol-ene "click" reaction between pendent carbon-carbon double bonds of PEG-b-PATMC and thiol groups of thioglycolic acid, 3-mercaptopropionic acid, 11-mercaptoundecanoic acid or 2-mercaptosuccinic acid. DLS and TEM measurements showed that all the mPEG-b-PATMC-g-SRCOOH copolymers could self-assemble to form micelles which dispersed in spherical shape with nano-size before and after DOX loading. The positively-charged DOX could effectively load into copolymer micelles via synergistic hydrophobic and electrostatic interactions. All DOX-loaded mPEG-b-PATMC-g-SRCOOH micelles displayed sustained drug release behavior without an initial burst which could be further adjusted by the conditions of ionic strength and pH. Especially in the case of mPEG-b-PATMC-g-S(CH2)10COOH (P3) micelles, the suitable hydrophobility and charge density were not only beneficial to improve the DOX-loading efficiency, they were also good for obtaining smaller particle size, higher micelle stability and more timely drug delivery. Confocal laser scanning microscopy (CLSM) and MTT assays further demonstrated efficient cellular uptake of DOX delivered by mPEG-b-PATMC-g-SRCOOH micelles and potent cytotoxic activity against cancer cells.
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33
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Liang R, Li X, Lin S, Wang J. Effects on functional groups and zeta potential of SAP 1<MW<3kDa treated by pulsed electric field technology. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2017; 97:578-586. [PMID: 27098170 DOI: 10.1002/jsfa.7768] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 04/02/2016] [Accepted: 04/15/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND SAP1<MW<3kDa was chosen to investigate the improvement of antioxidant activity of peptides treated with pulsed electric field (PEF) technology. The effects of electric field intensity and pulse frequency on SAP1<MW<3kDa were evaluated using 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical inhibition, as well as the zeta potential and functional groups. RESULTS One-factor-at-a-time tests indicated that the PEF-treated sample had the strongest antioxidant activity (P < 0.05) and the lowest zeta potential value. The increase of antioxidant activity of SAP1<MW<3kDa may be attributed to a loss of C = C and the amide band. Using a response surface methodology (RSM) experiment, it was shown that DPPH radical inhibition of SAP1<MW<3kDa increased to 90.22 ± 0.90% at the optimal conditions (electric field intensity 15 kV cm-1 , pulse frequency 1600 Hz and flow velocity 2.93 mL min-1 ). Furthermore, the PEF-treated SAP1<MW<3kDa under optimal conditions lacked the characteristic absorbance of N-H, C = C and the amide band and the zeta potential was reduced to -18.0 mV. CONCLUSION Overall, the results of the present study suggest that the improvement of antioxidant activity of SAP1<MW<3kDa is a result of the contribution of the functional groups and the change in zeta potential when treated with PEF. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Rong Liang
- College of Food Science and Technology, Jilin University, Changchun, 130062, P.R. China
| | - Xuenan Li
- College of Food Science and Technology, Jilin University, Changchun, 130062, P.R. China
| | - Songyi Lin
- College of Food Science and Technology, Jilin University, Changchun, 130062, P.R. China
| | - Jia Wang
- Department of Food Science, Faculty of Life Sciences, University of Copenhagen, Rolighedsvej 30, DK-1958, Frederiksberg C, Denmark
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Paese K, Ortiz M, Frank LA, Külkamp-Guerreiro IC, Rolim CMB, Barros DM, Pohlmann AR, Guterres SS. Production of Isotonic, Sterile, and Kinetically Stable Lipid-Core Nanocapsules for Injectable Administration. AAPS PharmSciTech 2017; 18:212-223. [PMID: 26956145 DOI: 10.1208/s12249-016-0493-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 01/31/2016] [Indexed: 11/30/2022] Open
Abstract
Lipid-core nanocapsules (LNC) were designed and prepared as a colloidal system for drug targeting to improve the stability of drugs and allow their controlled release. For parenteral administration, it is necessary to ensure formulation sterility. However, sterilization of nanotechnological devices using an appropriate technique that keeps the supramolecular structure intact remains a challenge. This work aimed to evaluate the effect of autoclaving on the physicochemical characteristics of LNC. Formulations were prepared by the self-assembling method, followed by isotonization and sterilization at varying times and temperatures. The isotonicity was confirmed by determining the freezing temperature, which was -0.51°C. The formulation was broadly characterized, and the diameter of the particles was determined utilizing complementary methods. To evaluate the chemical stability of poly(ε-caprolactone), its molecular weight was determined by size exclusion chromatography. The physicochemical characteristics (average diameter, viscosity, and physical stability) of the formulation were similar before and after adding glycerol and conducting the sterilization at the highest temperature (134°C) and the shorter exposure time (10 min). After autoclaving, the sterility test was performed and showed no detectable microbial growth. Multiple light scattering demonstrated that the formulations were kinetically stable, and the mean diameter was constant for 6 months, corroborating this result. The polymer was chemically stable in the sterilized formulation. Isotonic and sterile LNC aqueous suspensions were produced using glycerol and autoclaving. Briefly, the results open an opportunity to produce an isotonic and sterile LNC aqueous dispersion applicable as nanomedicine for intravenous administration in clinical trials.
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Ghafarinazari A, Scarpa M, Zoccatelli G, Comes Franchini M, Locatelli E, Daldosso N. Hybrid luminescent porous silicon for efficient drug loading and release. RSC Adv 2017. [DOI: 10.1039/c6ra27102b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In recent decades, biocompatible and light emitting porous silicon (pSi) showed the possibility for use in biomedical applications.
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Affiliation(s)
- A. Ghafarinazari
- Department of Computer Science
- University of Verona
- 37134 Verona
- Italy
| | - M. Scarpa
- Department of Physics
- Istituto Nazionale Biostrutture Biosistemi
- University of Trento
- 38123 Trento
- Italy
| | - G. Zoccatelli
- Department of Biotechnology
- University of Verona
- 37134 Verona
- Italy
| | - M. Comes Franchini
- Department of Industrial Chemistry
- University of Bologna
- 40136 Bologna
- Italy
| | - E. Locatelli
- Department of Industrial Chemistry
- University of Bologna
- 40136 Bologna
- Italy
| | - N. Daldosso
- Department of Computer Science
- University of Verona
- 37134 Verona
- Italy
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36
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Zhou M, Shen L, Lin X, Hong Y, Feng Y. Design and pharmaceutical applications of porous particles. RSC Adv 2017. [DOI: 10.1039/c7ra06829h] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Porous particles have been developed as a novel carrier to improve drug delivery, dissolution, tableting, and so on, which can be prepared by many methods.
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Affiliation(s)
- Miaomiao Zhou
- College of Chinese Materia Medica
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education
| | - Lan Shen
- College of Chinese Materia Medica
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Xiao Lin
- College of Chinese Materia Medica
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Yanlong Hong
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Yi Feng
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
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37
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Turner CT, Hasanzadeh Kafshgari M, Melville E, Delalat B, Harding F, Mäkilä E, Salonen JJ, Cowin AJ, Voelcker NH. Delivery of Flightless I siRNA from Porous Silicon Nanoparticles Improves Wound Healing in Mice. ACS Biomater Sci Eng 2016; 2:2339-2346. [DOI: 10.1021/acsbiomaterials.6b00550] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Christopher T. Turner
- Regenerative Medicine, Future
Industries Institute, University of South Australia, Adelaide, South Australia 5001, Australia
| | - Morteza Hasanzadeh Kafshgari
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology,
Future Industries Institute, University of South Australia, Adelaide, South Australia 5001, Australia
| | - Elizabeth Melville
- Regenerative Medicine, Future
Industries Institute, University of South Australia, Adelaide, South Australia 5001, Australia
| | - Bahman Delalat
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology,
Future Industries Institute, University of South Australia, Adelaide, South Australia 5001, Australia
| | - Francis Harding
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology,
Future Industries Institute, University of South Australia, Adelaide, South Australia 5001, Australia
| | - Ermei Mäkilä
- Department
of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland
| | - Jarno J. Salonen
- Department
of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland
| | - Allison J. Cowin
- Regenerative Medicine, Future
Industries Institute, University of South Australia, Adelaide, South Australia 5001, Australia
| | - Nicolas H. Voelcker
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology,
Future Industries Institute, University of South Australia, Adelaide, South Australia 5001, Australia
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38
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Pei L, Wu J, Liu J, Wang J. Study of Different Hueing Dyes Deposition on Fabrics during Home Laundry. TENSIDE SURFACT DET 2016. [DOI: 10.3139/113.110469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
The objective of this research was to study the deposition mechanism of hueing dyes on different fabric surfaces. In this study, two types of fabrics and four types of hueing dyes were used to study the dye accumulation behaviors on fabric samples. The results showed that nylon and cotton treated with hueing dyes had a lower b* value and a higher CIE whiteness. Furthermore, the accumulation level of hueing dyes on nylon was much higher than on cotton fabric. The chemical composition of fabrics and molecular structures of hueing dyes were also investigated to study the interactions between different fibers and dyes. The results showed that the over-deposition of hueing dyes on fabric was mainly driven by the electrostatic forces, which could be weakened by adding salts to neutralize the fabric surface charge during home laundry.
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Affiliation(s)
- Liujun Pei
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles
| | - Jindan Wu
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles
- National Base for International Science & Technology Cooperation in Textiles and Consumer-Goods Chemistry; Zhejiang Sci-Tech University , Hangzhou, Zhejiang , China
| | - Juanjuan Liu
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles
| | - Jiping Wang
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles
- National Base for International Science & Technology Cooperation in Textiles and Consumer-Goods Chemistry; Zhejiang Sci-Tech University , Hangzhou, Zhejiang , China
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39
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Salles GN, Pereira FADS, Pacheco-Soares C, Marciano FR, Hölscher C, Webster TJ, Lobo AO. A Novel Bioresorbable Device as a Controlled Release System for Protecting Cells from Oxidative Stress from Alzheimer’s Disease. Mol Neurobiol 2016; 54:6827-6838. [DOI: 10.1007/s12035-016-0200-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 10/11/2016] [Indexed: 12/15/2022]
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Effect of Experimental Parameters on Alginate/Chitosan Microparticles for BCG Encapsulation. Mar Drugs 2016; 14:md14050090. [PMID: 27187418 PMCID: PMC4882564 DOI: 10.3390/md14050090] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 04/21/2016] [Accepted: 04/28/2016] [Indexed: 01/04/2023] Open
Abstract
The aim of the present study was to develop novel Mycobacterium bovis bacille Calmette-Guérin (BCG)-loaded polymeric microparticles with optimized particle surface characteristics and biocompatibility, so that whole live attenuated bacteria could be further used for pre-exposure vaccination against Mycobacterium tuberculosis by the intranasal route. BCG was encapsulated in chitosan and alginate microparticles through three different polyionic complexation methods by high speed stirring. For comparison purposes, similar formulations were prepared with high shear homogenization and sonication. Additional optimization studies were conducted with polymers of different quality specifications in a wide range of pH values, and with three different cryoprotectors. Particle morphology, size distribution, encapsulation efficiency, surface charge, physicochemical properties and biocompatibility were assessed. Particles exhibited a micrometer size and a spherical morphology. Chitosan addition to BCG shifted the bacilli surface charge from negative zeta potential values to strongly positive ones. Chitosan of low molecular weight produced particle suspensions of lower size distribution and higher stability, allowing efficient BCG encapsulation and biocompatibility. Particle formulation consistency was improved when the availability of functional groups from alginate and chitosan was close to stoichiometric proportion. Thus, the herein described microparticulate system constitutes a promising strategy to deliver BCG vaccine by the intranasal route.
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41
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Boushra M, Tous S, Fetih G, Xue HY, Tran NT, Wong HL. Methocel-Lipid Hybrid Nanocarrier for Efficient Oral Insulin Delivery. J Pharm Sci 2016; 105:1733-1740. [PMID: 27012226 DOI: 10.1016/j.xphs.2016.02.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Revised: 01/10/2016] [Accepted: 02/16/2016] [Indexed: 12/23/2022]
Abstract
Even with the use of double-emulsion technique for preparation, the hydrophobic nature of solid lipid nanoparticles (SLNs) limits their encapsulation efficiency (EE%) for peptides such as insulin. In this study, we hypothesize that inclusion of Methocel into SLN to form Methocel-lipid hybrid nanocarriers (MLNs) will significantly enhance insulin EE% without compromising the various characteristics of SLN favorable for oral drug delivery. Our data show that incorporation of 2% wt/wt of Methocel A15C had doubled insulin EE% (around 40%) versus conventional SLN prepared using standard double emulsion technique. MLN significantly protected the entrapped insulin against chymotrypsin degradation at gastrointestinal pH. Using intestinal epithelial cells Caco2 as a model, it was shown that MLN could be extensively taken up by Caco2 cells while demonstrating low cytotoxicity. The results indicate that MLN have preserved the key advantages of SLN (biocompatibility, low cytotoxicity, good drug protection, and good interaction with cells) while overcoming their key limitation for efficient peptide entrapment. Based on this, MLN may serve as a promising nanocarrier for oral delivery of peptides.
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Affiliation(s)
- Mariam Boushra
- Department of Pharmaceutical Sciences, Temple University School of Pharmacy, Philadelphia, Pennsylvania 19140; Pharmaceutics Department, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Sozan Tous
- Pharmaceutics Department, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Gihan Fetih
- Pharmaceutics Department, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Hui-Yi Xue
- Department of Pharmaceutical Sciences, Temple University School of Pharmacy, Philadelphia, Pennsylvania 19140
| | - Ngoc T Tran
- Department of Pharmaceutical Sciences, Temple University School of Pharmacy, Philadelphia, Pennsylvania 19140
| | - Ho Lun Wong
- Department of Pharmaceutical Sciences, Temple University School of Pharmacy, Philadelphia, Pennsylvania 19140.
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42
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Functionalization and characterization of persistent luminescence nanoparticles by dynamic light scattering, laser Doppler and capillary electrophoresis. Colloids Surf B Biointerfaces 2015; 136:272-81. [DOI: 10.1016/j.colsurfb.2015.09.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 09/10/2015] [Accepted: 09/12/2015] [Indexed: 12/22/2022]
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43
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Das PK. Effect of thermodiffusion on pH-regulated surface charge properties of nanoparticle. Electrophoresis 2015; 37:347-55. [PMID: 26530465 DOI: 10.1002/elps.201500374] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 10/06/2015] [Accepted: 10/20/2015] [Indexed: 11/09/2022]
Abstract
Surface properties of nanoparticle are of high importance in the field of biotechnology, drug delivery and micro/nanofabrication. In this article, we developed a comprehensive theoretical model and subsequently solved that numerically to study the effect of thermodiffusion of ions on surface charge properties of nanoparticle. The theoretical study has been done considering silica nanoparticle for two aqueous solutions NaCl and KCl. The effect of solution pH in conjunction with nanoparticle temperature on surface charge density has been obtained for different salt concentrations (1, 10 and 100 mM) and nanoparticle size (diameter of 2 and 100 nm). It is observed from the results that with increasing temperature of the nanoparticle, the negative surface charge density gets higher due to increasing thermodiffusion effect. It is also found out that the magnitude of surface charge density is higher for KCl solution than NaCl solution under same condition which is attributed mostly due to less thermodiffusion of counterions for KCl than NaCl. Present study also shows that magnitude of surface charge density decreases with increasing nanoparticle size until it reaches a limiting value (called critical size) above which the effect of nanoparticle size on surface charge density is insignificant.
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44
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Li YM, Jiang T, Lv Y, Wu Y, He F, Zhuo RX. Amphiphilic copolymers with pendent carboxyl groups for high-efficiency loading and controlled release of doxorubicin. Colloids Surf B Biointerfaces 2015; 132:54-61. [DOI: 10.1016/j.colsurfb.2015.04.066] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 04/08/2015] [Accepted: 04/30/2015] [Indexed: 12/20/2022]
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45
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Peng F, Cao Z, Ji X, Chu B, Su Y, He Y. Silicon nanostructures for cancer diagnosis and therapy. Nanomedicine (Lond) 2015; 10:2109-23. [DOI: 10.2217/nnm.15.53] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The emergence of nanotechnology suggests new and exciting opportunities for early diagnosis and therapy of cancer. During the recent years, silicon-based nanomaterials featuring unique properties have received great attention, showing high promise for myriad biological and biomedical applications. In this review, we will particularly summarize latest representative achievements on the development of silicon nanostructures as a powerful platform for cancer early diagnosis and therapy. First, we introduce the silicon nanomaterial-based biosensors for detecting cancer markers (e.g., proteins, tumor-suppressor genes and telomerase activity, among others) with high sensitivity and selectivity under molecular level. Then, we summarize in vitro and in vivo applications of silicon nanostructures as efficient nanoagents for cancer therapy. Finally, we discuss the future perspective of silicon nanostructures for cancer diagnosis and therapy.
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Affiliation(s)
- Fei Peng
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Zhaohui Cao
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Xiaoyuan Ji
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Binbin Chu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Yuanyuan Su
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Yao He
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
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Roine J, Kaasalainen M, Peurla M, Correia A, Araújo F, Santos HA, Murtomaa M, Salonen J. Controlled Dissolution of Griseofulvin Solid Dispersions from Electrosprayed Enteric Polymer Micromatrix Particles: Physicochemical Characterization and in Vitro Evaluation. Mol Pharm 2015; 12:2254-64. [DOI: 10.1021/mp500787b] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Jorma Roine
- Department
of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland
| | - Martti Kaasalainen
- Department
of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland
| | - Markus Peurla
- Laboratory
of Electron Microscopy, University of Turku, FI-20014 Turku, Finland
| | - Alexandra Correia
- Division
of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Francisca Araújo
- Division
of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
- INEB—Instituto
de Engenharia Biomédica, University of Porto, Rua do Campo
Alegre, 823, 4150-180 Porto, Portugal
- ICBAS—Instituto
Ciências Biomédicas Abel Salazar, University of Porto, Rua de Jorge Viterbo Ferreira, 4050-313 Porto, Portugal
| | - Hélder A. Santos
- Division
of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Matti Murtomaa
- Department
of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland
| | - Jarno Salonen
- Department
of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland
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Wang CF, Sarparanta MP, Mäkilä EM, Hyvönen ML, Laakkonen PM, Salonen JJ, Hirvonen JT, Airaksinen AJ, Santos HA. Multifunctional porous silicon nanoparticles for cancer theranostics. Biomaterials 2015; 48:108-18. [DOI: 10.1016/j.biomaterials.2015.01.008] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 12/29/2014] [Accepted: 01/20/2015] [Indexed: 02/07/2023]
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Kaasalainen M, Rytkönen J, Mäkilä E, Närvänen A, Salonen J. Electrostatic interaction on loading of therapeutic peptide GLP-1 into porous silicon nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:1722-9. [PMID: 25604519 DOI: 10.1021/la5047047] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Porous silicon (PSi) nanoparticles' tunable properties are facilitating their use at highly challenging medical tasks such as peptide delivery. Because of many different mechanisms that are affecting the interaction between the peptide and the particle, the drug incorporation into the mesoporous delivery system is not straightforward. We have studied the adsorption and loading of incretin hormone glucagon like peptide 1 (GLP-1) on PSi nanoparticles. The results show that the highest loading degree can be achieved in pH values near the isoelectric point of peptide, and the phenomenon is independent of the surface's zeta potential. In order to study the interaction between the peptide and the nanoparticle, we studied the adsorption with lower concentrations and noticed that also non-Coulombic forces have a big role in adsorption of GLP-1. Adsorption is effective and pH-independent especially on low peptide concentrations and onto more hydrophobic nanoparticles. Reversibility of adsorption was studied as a function of buffer pH. When the loading is compared to the total mass of the formulation, the loading degree is 29%, and during desorption experiments 25% is released in 4 h and can be considered as a reversible loading degree. Thus, the peptides adsorbed first seem to create irreversibly adsorbed layer that facilitates reversible adsorption of following peptides.
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Affiliation(s)
- Martti Kaasalainen
- Laboratory of Industrial Physics, Department of Physics and Astronomy, University of Turku , FI-20014 Turku, Finland
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Shershneva AM, Murueva AV, Shishatskaya EI, Volova TG. Study of electrokinetic potential of drug micro-carriers prepared from resorbable polymers bioplastotan. Biophysics (Nagoya-shi) 2014. [DOI: 10.1134/s000635091404023x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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50
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Okutan N, Terzi P, Altay F. Affecting parameters on electrospinning process and characterization of electrospun gelatin nanofibers. Food Hydrocoll 2014. [DOI: 10.1016/j.foodhyd.2013.12.022] [Citation(s) in RCA: 235] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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