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Paramadini AW, Chinavinijkul P, Meemai A, Thongkam P, Apasuthirat A, Nasongkla N. Fabrication and in vitro characterization of zinc oxide nanoparticles and hyaluronic acid-containing carboxymethylcellulose gel for wound healing application. Pharm Dev Technol 2023; 28:95-108. [PMID: 36646681 DOI: 10.1080/10837450.2022.2164304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Chronic wounds, such as burns and diabetic ulcers, are complex wounds sustained by the skin that require life-long rehabilitation and have the potential to deteriorate and get infected. The number of patients with this ailment has been steadily increasing. This illness demands the use of new dressings with the best capabilities for managing wound healing. This study created an gel with carboxymethylcellulose (CMC), hyaluronic acid (HA), and zinc oxide nanoparticles (ZnO NPs). According to the findings, the manufacturing technique with a 1:4 ratio of HA and CMC gel had the best viscosity. Additionally, varying concentrations of zinc oxide nanoparticles (ZnO NPs) were added to the formula. Variations included 0.05, 0.125, 0.5, 1.0, 3.0, 5.0, and 10% by weight. In order to find the ideal dose and formulation, physical properties, an anti-bacterial test, and a cell migration assay were carried out. The samples with concentration of 0.5, 1.0, 3.0, 5.0 and 10% w/v showed ability to kill gram-positive and gram-negative bacteria. Wound healing experiments showed that cells proliferated for HA/CMC/ZnO gel with a weight-to-volume ratio of 0.05% and 1.0% w/v. In conclusion, according to all (physical and biological) characterization, the HA/CMC/ZnO gel with a weight-to-volume ratio of 1.0% w/v was found to have a considerable standard for wound-healing materials, demonstrating a promising effect against bacteria.
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Affiliation(s)
- Adanti Wido Paramadini
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, Thailand
| | - Panarin Chinavinijkul
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, Thailand
| | - Aniroot Meemai
- Novatec Healthcare Company Limited, Samrong-Nua, Muang, Samutprakarn, Thailand
| | - Peerawat Thongkam
- Novatec Healthcare Company Limited, Samrong-Nua, Muang, Samutprakarn, Thailand
| | - Adisorn Apasuthirat
- Novatec Healthcare Company Limited, Samrong-Nua, Muang, Samutprakarn, Thailand
| | - Norased Nasongkla
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, Thailand
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丁 思, 洪 慧, 徐 凌, 王 晓, 张 维, 李 向, 王 银, 陈 佳. [Chlorhexidine-grafted phenolamine coating to improve antibacterial property of the titanium surface]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2022; 36:335-342. [PMID: 35293176 PMCID: PMC8923923 DOI: 10.7507/1002-1892.202108095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 01/17/2022] [Indexed: 06/14/2023]
Abstract
Objective To investigate the physicochemical properties of pure titanium surface grafted with chlorhexidine (CHX) by phenolamine coating, and to evaluate its antibacterial activity and osteoblast-compatibility in vitro. Methods Control group was obtained by alkali and thermal treatment, and then immersed in the mixture of epigallocatechin-3-gallate/hexamethylene diamine (coating group). Phenolamine coating was deposited on the surface, and then it was immersed in CHX solution to obtain the grafted surface of CHX (grafting group). The surface morphology was observed by scanning electron microscope, the surface element composition was analyzed by X-ray photoelectron spectroscopy, and the surface hydrophilicity was measured by water contact angle test. Live/dead bacterial staining, nephelometery, and inhibition zone method were executed to evaluate the antibacterial property. Cytotoxicity was evaluated by MTT assay and cell fluorescence staining. Bacteria-MC3T3-E1 cells co-culture was conducted to evaluate the cell viability on the samples under the circumstance with bacteria. Results Scanning electron microscope observation results showed that deposits of coating group and grafting group increased successively and gradually covered the porous structure. X-ray photoelectron spectroscopy results showed the peak of N1s enhanced and the peak of Cl2p appeared in grafting group. Water contact angle test results showed that the hydrophilic angle of three groups increased in turn, and there was significant difference between groups ( P<0.05). Live/dead bacteria staining results showed that the grafting group had the least amount of bacteria adhered to the surface and the proportion of dead bacteria was high. The grafting group had a transparent inhibition zone around it and the absorbance ( A) value did not increase, showing significant difference when compared with control group and coating group ( P<0.05). MTT assay and cell fluorescence staining results showed that the number of adherent cells on the surface of the grafting group was the least, but the adherent cells had good proliferation activity. Bacteria-cell co-culture results showed that there was no bacteria on the surface of grafting group but live cells adhered well. Conclusion CHX-grafted phenolamine coating has the ability to inhibit bacterial adhesion and proliferation, and effectively protect cell adhesion and proliferation in a bacterial environment.
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Affiliation(s)
- 思勰 丁
- 安徽医科大学口腔医学院/附属口腔医院口腔材料教研室 口腔疾病研究安徽省重点实验室(合肥 230032)Stomatologic Hospital and College, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei Anhui, 230032, P. R. China
| | - 慧蕾 洪
- 安徽医科大学口腔医学院/附属口腔医院口腔材料教研室 口腔疾病研究安徽省重点实验室(合肥 230032)Stomatologic Hospital and College, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei Anhui, 230032, P. R. China
| | - 凌寒 徐
- 安徽医科大学口腔医学院/附属口腔医院口腔材料教研室 口腔疾病研究安徽省重点实验室(合肥 230032)Stomatologic Hospital and College, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei Anhui, 230032, P. R. China
| | - 晓玮 王
- 安徽医科大学口腔医学院/附属口腔医院口腔材料教研室 口腔疾病研究安徽省重点实验室(合肥 230032)Stomatologic Hospital and College, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei Anhui, 230032, P. R. China
| | - 维波 张
- 安徽医科大学口腔医学院/附属口腔医院口腔材料教研室 口腔疾病研究安徽省重点实验室(合肥 230032)Stomatologic Hospital and College, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei Anhui, 230032, P. R. China
| | - 向阳 李
- 安徽医科大学口腔医学院/附属口腔医院口腔材料教研室 口腔疾病研究安徽省重点实验室(合肥 230032)Stomatologic Hospital and College, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei Anhui, 230032, P. R. China
| | - 银龙 王
- 安徽医科大学口腔医学院/附属口腔医院口腔材料教研室 口腔疾病研究安徽省重点实验室(合肥 230032)Stomatologic Hospital and College, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei Anhui, 230032, P. R. China
| | - 佳龙 陈
- 安徽医科大学口腔医学院/附属口腔医院口腔材料教研室 口腔疾病研究安徽省重点实验室(合肥 230032)Stomatologic Hospital and College, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei Anhui, 230032, P. R. China
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Kim CR, Jang EB, Hong SH, Yoon YE, Huh BK, Kim SN, Kim MJ, Moon HS, Choy YB. Indwelling urinary catheter assembled with lidocaine-loaded polymeric strand for local sustained alleviation of bladder discomfort. Bioeng Transl Med 2021; 6:e10218. [PMID: 34027100 PMCID: PMC8126825 DOI: 10.1002/btm2.10218] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 03/10/2021] [Accepted: 03/14/2021] [Indexed: 01/03/2023] Open
Abstract
Indwelling urinary catheters (IUCs) are used in clinical settings to assist detrusor contraction in hospitalized patients. However, an inserted IUC often causes catheter-related bladder discomfort. To resolve this, we propose an IUC coupled with local, sustained release of an anesthetic drug, lidocaine. For this, a thin strand composed of poly (lactic-co-glycolic acid) and lidocaine was separately prepared as a drug delivery carrier, which was then wound around the surface of the IUC to produce the drug-delivery IUC. Our results revealed that the drug-delivery IUC could exert the pain-relief effects for up to 7 days when placed in the bladder of living rats. Cystometrogram tests indicated that the drug-delivery IUC could significantly relieve bladder discomfort compared with the IUC without lidocaine. Furthermore, the expression of pain-related inflammatory markers, such as nerve growth factor, cyclooxygenase-2, and interleukin-6 in the biopsied bladder tissues was significantly lower when the drug-delivery IUC was used. Therefore, we conclude that an IUC simply assembled with a drug-loaded polymer strand can continuously release lidocaine to allow for the relief of bladder discomfort during the period of IUC insertion.
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Affiliation(s)
- Cho Rim Kim
- Interdisciplinary Program for Bioengineering, College of EngineeringSeoul National UniversitySeoulRepublic of Korea
| | - Eun Bi Jang
- Department of Urology, College of MedicineHanyang UniversitySeoulRepublic of Korea
- Department of Translational Medicine, Graduate School of Biomedical Science & EngineeringHanyang UniversitySeoulRepublic of Korea
| | - Seong Hwi Hong
- Department of Urology, College of MedicineHanyang UniversitySeoulRepublic of Korea
| | - Young Eun Yoon
- Department of Urology, College of MedicineHanyang UniversitySeoulRepublic of Korea
| | - Beom Kang Huh
- Interdisciplinary Program for Bioengineering, College of EngineeringSeoul National UniversitySeoulRepublic of Korea
| | - Se Na Kim
- Institute of Medical & Biological Engineering, Medical Research CenterSeoul National UniversitySeoulRepublic of Korea
| | - Min Ji Kim
- Interdisciplinary Program for Bioengineering, College of EngineeringSeoul National UniversitySeoulRepublic of Korea
| | - Hong Sang Moon
- Department of Urology, College of MedicineHanyang UniversitySeoulRepublic of Korea
| | - Young Bin Choy
- Interdisciplinary Program for Bioengineering, College of EngineeringSeoul National UniversitySeoulRepublic of Korea
- Institute of Medical & Biological Engineering, Medical Research CenterSeoul National UniversitySeoulRepublic of Korea
- Department of Biomedical EngineeringSeoul National University, College of MedicineSeoulRepublic of Korea
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4
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Srisang S, Boongird A, Ungsurungsie M, Wanasawas P, Nasongkla N. In vivo catheterization study of chlorhexidine-loaded nanoparticle coated Foley urinary catheters in male New Zealand white rabbits. J Biomed Mater Res B Appl Biomater 2021; 109:1836-1843. [PMID: 33856102 DOI: 10.1002/jbm.b.34844] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 03/09/2021] [Accepted: 03/31/2021] [Indexed: 01/07/2023]
Abstract
Foley urinary catheters were coated with chlorhexidine-loaded nanoparticles (CHX-NPs), encapsulated in the form of micelles and nanospheres. Both of nanoparticles were deposited by multilayer nanocoating through dip and spray coating on the catheter surface both inner and outer surface. In our previous studies, the nanocoating of Foley urinary catheters was studied for chlorhexidine release, degradation, antibacterial evaluation, cytotoxicity assessment, hemocompatibility, skin irritation, skin sensitization, and stability during storage. The results demonstrated the antimicrobial functions and biocompatibility of the coated catheters. In this study, coated urinary catheters were inserted in the bladders of rabbits for 7 day to investigate their efficacy. Histopathology results showed no inflammation, redness, or swelling on bladder and urethra tissues. Surface morphology comparison of uncoated catheters in the control group and coated catheters in the treatment group revealed more encrustation and crystallization on uncoated catheter than on coated catheter, indicating that catheters coated with CHX-NPs showed efficacy in delaying encrustation and bacterial colonization. These findings suggest that nanocoating of urinary catheters can potentially enhance the biocompatibility of medical devices.
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Affiliation(s)
- Siriwan Srisang
- Department of Engineering, King Mongkut's Institute of Technology Ladkrabung, Chumphon, Thailand
| | - Atthaporn Boongird
- Department of Surgery, Neurosurgical Unit, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | | | - Pimpaka Wanasawas
- S&J International Enterprises Public Company Limited, Bangkok, Thailand
| | - Norased Nasongkla
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, Thailand
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5
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Eawsakul K, Tancharoen S, Nasongkla N. Combination of dip coating of BMP-2 and spray coating of PLGA on dental implants for osseointegration. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102296] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Tambunlertchai S, Geary SM, Salem AK. Skin Penetration Enhancement Strategies Used in the Development of Melanoma Topical Treatments. AAPS JOURNAL 2021; 23:19. [PMID: 33404992 DOI: 10.1208/s12248-020-00544-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 11/26/2020] [Indexed: 01/10/2023]
Abstract
Malignant melanoma is an aggressive form of skin cancer for which there is currently no reliable therapy and is considered one of the leading health issues in the USA. At present, surgery is the most effective and acceptable treatment; however, surgical excision can be impractical in certain circumstances. Topical skin delivery of drugs using topical formulations is a potential alternative approach which can have many advantages aside from being a non-invasive delivery route. Nevertheless, the presence of the stratum corneum (SC) limits the penetration of drugs through the skin, lowering their treatment efficacy and raising concerns among physicians and patients as to their effectiveness. Currently, research groups are trying to circumvent the SC barrier by using skin penetration enhancement (SPE) strategies. The SPE strategies investigated include chemical skin penetration enhancers (CPEs), physical skin penetration enhancers (PPEs), nanocarrier systems, and a combination of SPE strategies (cream). Of these, PPEs and cream are the most advanced approaches in terms of preclinical and clinical studies, respectively.
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Affiliation(s)
- Supreeda Tambunlertchai
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, Iowa, 52242, USA
| | - Sean M Geary
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, Iowa, 52242, USA
| | - Aliasger K Salem
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, Iowa, 52242, USA.
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Srisang S, Boongird A, Ungsurungsie M, Wanasawas P, Nasongkla N. Biocompatibility and stability during storage of Foley urinary catheters coated chlorhexidine loaded nanoparticles by nanocoating: in vitro and in vivo evaluation. J Biomed Mater Res B Appl Biomater 2020; 109:496-504. [DOI: 10.1002/jbm.b.34718] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 08/09/2020] [Accepted: 08/18/2020] [Indexed: 12/17/2022]
Affiliation(s)
- Siriwan Srisang
- Department of Engineering King Mongkut's Institute of Technology Ladkrabung, Prince of Chumphon campus Chumphon Thailand
| | - Atthaporn Boongird
- Department of Surgery, Neurosurgical Unit, Faculty of Medicine Ramathibodi Hospital, Mahidol University Bangkok Thailand
| | - Malyn Ungsurungsie
- Research and Development Division S and J International Enterprises Public Company Limited Bangkok Thailand
| | - Pimpaka Wanasawas
- Research and Development Division S and J International Enterprises Public Company Limited Bangkok Thailand
| | - Norased Nasongkla
- Department of Biomedical Engineering, Faculty of Engineering Mahidol University Nakhon Pathom Thailand
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Otto DP, de Villiers MM. Layer-By-Layer Nanocoating of Antiviral Polysaccharides on Surfaces to Prevent Coronavirus Infections. Molecules 2020; 25:E3415. [PMID: 32731428 PMCID: PMC7435837 DOI: 10.3390/molecules25153415] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 07/24/2020] [Accepted: 07/26/2020] [Indexed: 12/28/2022] Open
Abstract
In 2020, the world is being ravaged by the coronavirus, SARS-CoV-2, which causes a severe respiratory disease, Covid-19. Hundreds of thousands of people have succumbed to the disease. Efforts at curing the disease are aimed at finding a vaccine and/or developing antiviral drugs. Despite these efforts, the WHO warned that the virus might never be eradicated. Countries around the world have instated non-pharmaceutical interventions such as social distancing and wearing of masks in public to curb the spreading of the disease. Antiviral polysaccharides provide the ideal opportunity to combat the pathogen via pharmacotherapeutic applications. However, a layer-by-layer nanocoating approach is also envisioned to coat surfaces to which humans are exposed that could harbor pathogenic coronaviruses. By coating masks, clothing, and work surfaces in wet markets among others, these antiviral polysaccharides can ensure passive prevention of the spreading of the virus. It poses a so-called "eradicate-in-place" measure against the virus. Antiviral polysaccharides also provide a green chemistry pathway to virus eradication since these molecules are primarily of biological origin and can be modified by minimal synthetic approaches. They are biocompatible as well as biodegradable. This surface passivation approach could provide a powerful measure against the spreading of coronaviruses.
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Affiliation(s)
- Daniel P. Otto
- Research Focus Area for Chemical Resource Beneficiation, Laboratory for Analytical Services, Faculty of Natural and Agricultural Sciences, North-West University, Potchefstroom 2531, South Africa
| | - Melgardt M. de Villiers
- Division of Pharmaceutical Sciences–Drug Delivery, School of Pharmacy, University of Wisconsin-Madison, 777 Highland Ave, Madison, WI 53705, USA;
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Srisang S, Wongsuwan N, Boongird A, Ungsurungsie M, Wanasawas P, Nasongkla N. Multilayer nanocoating of Foley urinary catheter by chlorhexidine-loaded nanoparticles for prolonged release and anti-infection of urinary tract. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2019.1655752] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Siriwan Srisang
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, Thailand
- Department of Engineering, King Mongkut's Institute of Technology Ladkrabang, Prince of Chumphon Campus, Chumphon, Thailand
| | - Nattarat Wongsuwan
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, Thailand
| | - Atthaporn Boongird
- Department of Surgery, Neurosurgical Unit, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Malyn Ungsurungsie
- S&J International Enterprises Public Company Limited, Tungwatdon, Sathon, Bangkok, Thailand
| | - Pimphaka Wanasawas
- S&J International Enterprises Public Company Limited, Tungwatdon, Sathon, Bangkok, Thailand
| | - Norased Nasongkla
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, Thailand
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Nittayacharn P, Yuan HX, Hernandez C, Bielecki P, Zhou H, Exner AA. Enhancing Tumor Drug Distribution With Ultrasound-Triggered Nanobubbles. J Pharm Sci 2019; 108:3091-3098. [PMID: 31095958 PMCID: PMC6708467 DOI: 10.1016/j.xphs.2019.05.004] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 04/30/2019] [Accepted: 05/07/2019] [Indexed: 01/09/2023]
Abstract
Issues with limited intratumoral drug penetration and heterogeneous drug distribution continue to impede the therapeutic efficacy of nanomedicine-based delivery systems. Ultrasound (US)-enhanced drug delivery has emerged as one effective means of overcoming these challenges. Acoustic cavitation in the presence of nanoparticles has shown to increase the cellular uptake and distribution of chemotherapeutic agents in vivo. In this study, we investigated the potential of a drug-loaded echogenic nanoscale bubbles in combination with low frequency (3 MHz), high energy (2 W/cm2) US for antitumor therapy. The doxorubicin-loaded nanobubbles (Dox-NBs) stabilized with an interpenetrating polymer mesh were 171.5 ± 20.9 nm in diameter. When used in combination with therapeutic US, Dox-NBs combined with free drug showed significantly higher (*p < 0.05) intracellular uptake and therapeutic efficacy compared with free drug. When injected intravenously in vivo, Dox-NBs + therapeutic US showed significantly higher (*p < 0.05) accumulation and better distribution of Dox in tumors when compared with free drug. This strategy provides an effective and simple method to increase the local dose and distribution of otherwise systemically toxic chemotherapeutic agents for cancer therapies.
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Affiliation(s)
- Pinunta Nittayacharn
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106
| | - Hai-Xia Yuan
- Department of Ultrasound, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai 200032, China; Department of Radiology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106
| | - Christopher Hernandez
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106
| | - Peter Bielecki
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106
| | - Haoyan Zhou
- GSK 1250 S. Collegeville Road, Collegeville, Pennsylvania 19426-0989
| | - Agata A Exner
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106; Department of Radiology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106.
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Dwivedi A, Mazumder A, Nasongkla N. In vitro and in vivo biocompatibility of orthopedic bone plate nano-coated with vancomycin loaded niosomes. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.04.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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12
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Srisang S, Nasongkla N. Layer-by-layer dip coating of Foley urinary catheters by chlorhexidine-loaded micelles. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2018.11.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Srisang S, Nasongkla N. Spray coating of foley urinary catheter by chlorhexidine-loadedpoly(ε-caprolactone) nanospheres: effect of lyoprotectants, characteristics, and antibacterial activity evaluation. Pharm Dev Technol 2018; 24:402-409. [PMID: 30265590 DOI: 10.1080/10837450.2018.1502317] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In this study, chlorhexidine-loaded poly(ε-caprolactone) nanospheres (CHX-NS) were prepared and successfully coated on the urinary catheters. Properties of CHX-NS were evaluated including drug loading content and the nanosphere size. Effects of different lyoprotectants for long-term storage of CHX-NS were also investigated. In vitro release study and antibacterial activity were also conducted using 20 cycles coated-urinary catheters. Results showed that the high-pressure emulsification-solvent evaporation technique provided the drug loading content at 1.14 ± 0.16% and the size of nanospheres was 152 ± 37 nm. The suitable lyoprotectant for long-term storage of CHX-NS was sucrose which provided noticeably no aggregation at the degree of reconstitution at 89.95%. The amount of CHX loading on coated catheters was at 4.55 ± 0.31 mg. Drug release from the coated catheters in artificial urine could be prolonged up to 2 weeks and bacteria proliferation was inhibited up to 14 days. These results suggest that the antimicrobial activity of CHX-NS reduces the adherence of the uropathogens to the catheter surface. Chlorhexidine-loaded polymeric nanospheres were fabricated which can be successfully coated on urinary catheters. These systems have potential use for prolonged antimicrobial applications.
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Affiliation(s)
- Siriwan Srisang
- a Department of Biomedical Engineering, Faculty of Engineering , Mahidol University , Nakhon Pathom , Thailand.,b Department of Engineering , King Mongkut's Institute of Technology Ladkrabang , Chumphon , Thailand
| | - Norased Nasongkla
- a Department of Biomedical Engineering, Faculty of Engineering , Mahidol University , Nakhon Pathom , Thailand
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14
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Vancomycin-impregnated polymer on Schanz pin for prolonged release and antibacterial application. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.07.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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15
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Dwivedi A, Mazumder A, Nasongkla N. Layer-by-layer nanocoating of antibacterial niosome on orthopedic implant. Int J Pharm 2018; 547:235-243. [PMID: 29864515 DOI: 10.1016/j.ijpharm.2018.05.075] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 05/05/2018] [Accepted: 05/31/2018] [Indexed: 02/05/2023]
Abstract
The major clinical hindrance of orthopedic implants is the bacterial infection, which can lead to biofilm formation and ultimately results in implant rejection. In this research, layer-by-layer nanocoating consists of vancomycin/PLA/vancomycin-loaded niosomes was designed. Vancomycin-loaded niosomes were formulated by thin film hydration method and the attributes of niosomes in terms of size, zeta potential, drug loading and EE, were assessed. The size was 340.5 ± 2.95 nm with the zeta potential and %EE was 45.4 ± 0.77 mV and 50.47 ± 3.66% respectively. The dip coating technique was used to deposit a thin film, which was characterized morphologically under FE-SEM. Drug release from coated bone plates with and without vancomycin-loaded niosomes was also studied and results suggested that bone plates coated with vancomycin-loaded niosomes have accumulated more vancomycin than the control group and hence aided in the prolonged release up to two weeks. These niosomes-coated bone plates demonstrated superior antibacterial activity for longer time period, without exhibiting any cytotoxic effects towards normal cells (L929). These findings offer a promising approach to control the bacterial colonization and biofilms formation. This thin film nano-coating can also be utilized in coating of other medical devices, which are prone to infections.
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Affiliation(s)
- Anupma Dwivedi
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakorn Pathom 73170 Thailand
| | - Anisha Mazumder
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakorn Pathom 73170 Thailand
| | - Norased Nasongkla
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakorn Pathom 73170 Thailand.
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