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Morarad R, Uerpairojkit K, Chalermkitpanit P, Sirivat A. Comparative study of iontophoresis-assisted transdermal delivery of bupivacaine and lidocaine as anesthetic drugs. Drug Deliv Transl Res 2024:10.1007/s13346-024-01627-5. [PMID: 38782881 DOI: 10.1007/s13346-024-01627-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/06/2024] [Indexed: 05/25/2024]
Abstract
Postoperative pain management is an important aspect of the overall surgical care process. Effective pain management not only provides patient comfort but also promotes faster recovery and reduces the risk of complications. Bupivacaine (BUP) and Lidocaine (LID) transdermal drug deliveries via thermoplastic polyurethane matrix (TPU) and iontophoresis technique are proposed here as alternative routes for postoperative pain instead of the injection route. Under applied electric field, the amounts of BUP and LID released were 95% and 97% from the loaded amounts, which were higher than the passive patch of 40%. The time to equilibrium of BUP turned out to be faster than the time to equilibrium of LID by approximately 1.5 times. This was due to 2 factors namely the drug molecular weight and the drug pKa value; they play an important role in the selection of a suitable drug for fast-acting or long-acting for the postoperative patients. By using this transdermal patch via iontophoresis system, BUP was deemed as the suitable drug for fast-acting due to the shorter time to equilibrium, whereas LID was the suitable drug for long-acting. The in-vitro drug release - permeation study through a porcine skin indicated the efficiency and potential of the system with the amounts of drug permeated up to 76% for BUP and 81% for LID. The TPU transdermal system was demonstrated here as potential to deliver BUP and LID for postoperative patients.
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Affiliation(s)
- Rawita Morarad
- Conductive and Electroactive Polymers Research Unit, The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Ketchada Uerpairojkit
- Department of Anesthesiology, Faculty of Medicine, King Chulalongkorn Memorial Hospital, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Pornpan Chalermkitpanit
- Pain Management Research Unit, Department of Anesthesiology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Anuvat Sirivat
- Conductive and Electroactive Polymers Research Unit, The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, 10330, Thailand.
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2
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Yu YH, Lee CH, Hsu YH, Chou YC, Hong BK, Huang CT, Liu SJ. Novel CO 2-encapsulated Pluronic F127 hydrogel for the treatment of Achilles tendon injury. Sci Rep 2023; 13:21895. [PMID: 38081952 PMCID: PMC10713641 DOI: 10.1038/s41598-023-49339-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/07/2023] [Indexed: 12/18/2023] Open
Abstract
Nonsurgical treatment and surgical repairment of injured Achilles tendons seldom restore the wounded tendon to its original elasticity and stiffness. Therefore, we hypothesized that the surgically repaired Achilles tendon can achieve satisfactory regeneration by applying multi-drug encapsulated hydrogels. In this study, a novel bupivacaine-eluting carbon dioxide-encapsulated Pluronic F127 hydrogel (BC-hydrogel) was developed for the treatment of Achilles tendon injuries. The rheological properties of BC-hydrogel were measured. A high-performance liquid chromatography assay was used to assess the release characteristics of bupivacaine in both in vitro and in vivo settings. Furthermore, the effectiveness of BC-hydrogel in treating torn tendons was examined in a rat model, and histological analyses were conducted. Evidently, the degradable hydrogels continuously eluted bupivacaine for more than 14 days. The animal study results revealed that the BC-hydrogel improved the post-surgery mobility of the animals compared with pristine hydrogels. Histological assay results demonstrated a significant reaction to high vascular endothelial growth factor in the surrounding tissues and expression of collagen I within the repaired tendon. This demonstrates the potential of this novel BC-hydrogel as an effective treatment method for Achilles tendon injuries.
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Affiliation(s)
- Yi-Hsun Yu
- Department of Orthopedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital at Linkou, Tao-Yuan, 33305, Taiwan
| | - Chen-Hung Lee
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital-Linkou, Chang Gung University College of Medicine, Tao-Yuan, 33305, Taiwan
| | - Yung-Heng Hsu
- Department of Orthopedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital at Linkou, Tao-Yuan, 33305, Taiwan
| | - Ying-Chao Chou
- Department of Orthopedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital at Linkou, Tao-Yuan, 33305, Taiwan
| | - Bo-Kui Hong
- Department of Mechanical Engineering, Chang Gung University, Tao-Yuan, 33302, Taiwan
| | - Chao-Tsai Huang
- Department of Chemical and Materials Engineering, Tamkang University, New Taipei City, 251301, Taiwan
| | - Shih-Jung Liu
- Department of Orthopedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital at Linkou, Tao-Yuan, 33305, Taiwan.
- Department of Mechanical Engineering, Chang Gung University, Tao-Yuan, 33302, Taiwan.
- Biomaterials Lab, Mechanical Engineering, Chang Gung University, 259, Wen-Hwa 1st Road, Kwei-Shan, Tao-Yuan, 33302, Taiwan.
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3
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Nagella SR, Choi S, Park SY, Ha CS, Jung Y, Chitumalla RK, Jang J, Yoon JY, Chung I. Depolymerized Chitosan-g-[Poly(MMA-co-HEMA-cl-EGDMA)] Based Nanogels for Controlled Local Release of Bupivacaine. Int J Mol Sci 2023; 24:16470. [PMID: 38003661 PMCID: PMC10671397 DOI: 10.3390/ijms242216470] [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: 09/25/2023] [Revised: 11/15/2023] [Accepted: 11/16/2023] [Indexed: 11/26/2023] Open
Abstract
This study is designed to formulate and characterize chitosan-based nanogels that provide the controlled delivery of anesthetic drugs, such as bupivacaine (BPV), for effective postoperative pain management over prolonged periods of time. Drug carriers of chitosan/poly (MMA-co-HEMA-cl-EGDMA) (CsPMH) nanogels were prepared by varying the composition of comonomers such as MMA, HEMA, and redox initiator CAN. The nanogels were then characterized using FTIR, TGA, SEM, and TEM. The CsPMH nanogels showed greater encapsulation efficiencies from 43.20-91.77%. Computational studies were also conducted to evaluate the interaction between the drug and CsPMH nanoparticles. Finally, BPV-loaded nanoparticles were used to examine their in vitro release behavior. At pH 7.4, all the drug carriers displayed the "n" value around 0.7, thus the BPV release follows anomalous diffusion. Drug carrier 7 demonstrated a steady and sustained release of BPV for approximately 24 h and released about 91% of BPV, following the K-P mechanism of drug release. On the other hand, drug carrier 6 exhibited controlled release for approximately 12 h and released only 62% of BPV.
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Affiliation(s)
- Sivagangi Reddy Nagella
- Department of Polymer Science and Engineering, Pusan National University, Busan 46241, Republic of Korea; (S.R.N.); (C.-S.H.)
| | - Soojeong Choi
- Department of Polymer Science and Engineering, Pusan National University, Busan 46241, Republic of Korea; (S.R.N.); (C.-S.H.)
| | - Soo-Yong Park
- Department of Polymer Science and Engineering, Pusan National University, Busan 46241, Republic of Korea; (S.R.N.); (C.-S.H.)
| | - Chang-Sik Ha
- Department of Polymer Science and Engineering, Pusan National University, Busan 46241, Republic of Korea; (S.R.N.); (C.-S.H.)
| | - Youngmi Jung
- Department of Biological Sciences, College of Natural Science, Pusan National University, Busan 46241, Republic of Korea;
| | - Ramesh Kumar Chitumalla
- Department of Nanoenergy Engineering, Pusan National University, Busan 46241, Republic of Korea;
| | - Joonkyung Jang
- Department of Nanoenergy Engineering, Pusan National University, Busan 46241, Republic of Korea;
| | - Ji-Young Yoon
- Department of Dental Anesthesia and Pain Medicine, School of Dentistry, Pusan National University, Gyeongsangnam-do, Yangsan 50612, Republic of Korea
- Dental Research Institute, Pusan National University Dental Hospital, Gyeongsangnam-do, Yangsan 50612, Republic of Korea
| | - Ildoo Chung
- Department of Polymer Science and Engineering, Pusan National University, Busan 46241, Republic of Korea; (S.R.N.); (C.-S.H.)
- Dental Research Institute, Pusan National University Dental Hospital, Gyeongsangnam-do, Yangsan 50612, Republic of Korea
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4
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Haddad E, Pagès M, Violleau F, Marsan O, Manero MH, Richard R, Torré JP. Ozonized 2-hydroxypropyl-β-cyclodextrins as novel materials with oxidative and bactericidal properties. Carbohydr Polym 2022; 291:119516. [DOI: 10.1016/j.carbpol.2022.119516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/15/2022] [Accepted: 04/19/2022] [Indexed: 11/15/2022]
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5
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Light activated pulsatile drug delivery for prolonged peripheral nerve block. Biomaterials 2022; 283:121453. [DOI: 10.1016/j.biomaterials.2022.121453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 02/15/2022] [Accepted: 03/02/2022] [Indexed: 11/21/2022]
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6
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Fabrication of Ropivacaine/Dexamethasone-Eluting Poly(D, L-Lactide-Co-Glycolide) Microparticles via Electrospraying Technique for Postoperational Pain Control. Polymers (Basel) 2022; 14:polym14040702. [PMID: 35215615 PMCID: PMC8878160 DOI: 10.3390/polym14040702] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 02/04/2022] [Accepted: 02/09/2022] [Indexed: 02/04/2023] Open
Abstract
Microencapsulation plays an important role in biomedical technology owing to its particular and attractive characteristics. In this work, we developed ropivacaine and dexamethasone loaded poly(D, L-lactide-co-glycolide) (PLGA) microparticles via electrospraying technique and investigated the release behavior of electrosprayed microparticles. The particle morphology of sprayed particles was assessed using scanning electron microscopy (SEM). The in vitro drug release kinetics were evaluated employing an elution method, and the in vivo pharmaceutical release as well as its efficacy on pain relief were tested using an animal activity model. The microscopic observation suggested that sprayed microparticles exhibit a size distribution of 5–6 µm. Fourier-transform infrared spectrometry and differential scanning calorimetry demonstrated the successful incorporation of pharmaceuticals in the PLGA particulates. The drugs-loaded particles discharged sustainably high concentrations of ropivacaine and dexamethasone at the target region in vivo for over two weeks, and the drug levels in the blood remained low. By adopting the electrospraying technique, we were able to prepare drug-embedded polymeric microparticles with effectiveness and with a sustainable capability for postoperative pain control.
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7
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Castro MAD, Cunha GMF, Andrade GF, Yoshida MI, Faria ALD, Silva-Cunha A. Development and characterization of PLGA-Bupivacaine and PLGA-S75:R25 Bupivacaine (Novabupi®) biodegradable implants for postoperative pain. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e21310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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8
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Alejo T, Sebastian V, Mendoza G, Arruebo M. Hybrid thermoresponsive nanoparticles containing drug nanocrystals for NIR-triggered remote release. J Colloid Interface Sci 2021; 607:1466-1477. [PMID: 34592544 DOI: 10.1016/j.jcis.2021.09.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/23/2021] [Accepted: 09/12/2021] [Indexed: 11/17/2022]
Abstract
The on-demand administration of anaesthetic drugs can be a promising alternative for chronic pain management. To further improve the efficacy of drug delivery vectors, high drug loadings combined with a spatiotemporal control on the release can not only relief the pain according to patient's needs, but also improve the drawbacks of conventional burst release delivery systems. In this study, a hybrid nanomaterial was developed by loading bupivacaine nanocrystals (BNCs) into oligo(ethylene glycol) methyl ether methacrylate (OEGMA)-based thermoresponsive nanogels and coupling them to NIR-absorbing biodegradable copper sulphide nanoparticles (CuS NPs). Those CuS NPs were surface modified with polyelectrolytes using layer-by-layer techniques to be efficiently attached to the surface of nanogels by means of supramolecular interactions. The encapsulation of bupivacaine in the form of nanocrystals allowed to achieve CuS@BNC-nanogels having drug loadings as high as 65.5 wt%. The nanocrystals acted as long-lasting drug reservoirs, leading to an elevated localized drug content, which was useful for their application in prolonged pain relief. The CuS@BNC-nanogels exhibited favorable photothermal transducing properties upon NIR-light irradiation. The photothermal effect granted by the CuS NPs triggered the nano-crystallized drug release to be boosted by the collapse of the thermoresponsive nanogels upon heating. Remote control was achieved for on-demand release at a specific time and place, indicating their potential use as an externally activated triggerable drug-delivery system. Furthermore, cell viability tests and flow cytometry analysis were performed showing satisfactory cytocompatibility in the dose-ranging study having a subcytotoxic concentration of 0.05 mg/mL for CuS@BNC-nanogels. This remotely activated nanoplatform is a promising strategy for long-lasting controlled analgesia and a potential alternative for clinical pain management.
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Affiliation(s)
- Teresa Alejo
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain; Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro - Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain.
| | - Victor Sebastian
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain; Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro - Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029 Madrid, Spain; Aragon Health Research Institute (IIS Aragón), 50009 Zaragoza, Spain
| | - Gracia Mendoza
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029 Madrid, Spain; Aragon Health Research Institute (IIS Aragón), 50009 Zaragoza, Spain
| | - Manuel Arruebo
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain; Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro - Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029 Madrid, Spain; Aragon Health Research Institute (IIS Aragón), 50009 Zaragoza, Spain
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9
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Parvez S, Yadagiri G, Arora K, Javaid A, Kushwaha AK, Singh OP, Sundar S, Mudavath SL. Coalition of Biological Agent (Melatonin) With Chemotherapeutic Agent (Amphotericin B) for Combating Visceral Leishmaniasis via Oral Administration of Modified Solid Lipid Nanoparticles. ACS Biomater Sci Eng 2021. [PMID: 34463477 DOI: 10.1021/acsbiomaterials.1c00859] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this study, 2-hydroxypropyl-β-cyclodextrin (HPβCD) grafted solid lipid nanoparticle (SLN)-based bioconjugate was synthesized and used for administering a combination of melatonin (Mel) and amphotericin B (AmB) orally for effective visceral leishmaniasis (VL) treatment. The formulations (HPCD-Mel-AmB SLN) were synthesized by the emulsion solvent evaporation method. HPCD-Mel-AmB SLN showed a high loading capacity and a high entrapment efficiency of AmB (% DL = 9.0 ± 0.55 and % EE = 87.9 ± 0.57) and Mel (% DL = 7.5 ± 0.51 and % EE = 63 ± 6.24). The cumulative percent release of AmB and Mel was 66.10 and 73.06%, respectively, up to 72 h. Time-dependent cellular uptake was noticed for HPCD-Mel-AmB SLN for 4 h. Further, HPCD-Mel-AmB SLN did not show any toxic effects on J774A.1 macrophages and Swiss albino mice. HPCD-Mel-AmB SLN (10 mg/kg ×5 days, p.o.) has significantly diminished (98.89%) the intracellular parasite load in liver tissues of L. donovani-infected BALB/c mice, subsequently highlighting the role of melatonin toward an effective strategy in combating leishmanial infection. Therefore, these results indicated that administration of HPCD-Mel-AmB SLN improve the therapeutic index of the first-line drug in addition to the introduction of biological agent and would be a promising therapeutic candidate for effective VL therapy. In the present study, the objective is to test the efficacy of the chemotherapeutic approach in combination with a biological immunomodulatory agent against leishmanial infection using in vitro and in vivo studies. This information suggests that melatonin could be an efficacious and potent antileishmanial agent.
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Affiliation(s)
- Shabi Parvez
- Infectious Disease Biology Laboratory, Institute of Nano Science & Technology, Habitat Centre, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Ganesh Yadagiri
- Infectious Disease Biology Laboratory, Institute of Nano Science & Technology, Habitat Centre, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Kanika Arora
- Infectious Disease Biology Laboratory, Institute of Nano Science & Technology, Habitat Centre, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Aaqib Javaid
- Infectious Disease Biology Laboratory, Institute of Nano Science & Technology, Habitat Centre, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Anurag Kumar Kushwaha
- Infectious Disease Research Laboratory, Department of Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Om Prakash Singh
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India.,Infectious Disease Research Laboratory, Department of Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Shyam Sundar
- Infectious Disease Research Laboratory, Department of Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Shyam Lal Mudavath
- Infectious Disease Biology Laboratory, Institute of Nano Science & Technology, Habitat Centre, Knowledge City, Sector-81, Mohali, Punjab 140306, India
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10
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Formation of low melting point binary systems comprising ketoprofen and an amide local anaesthetic. Int J Pharm 2021; 607:120969. [PMID: 34358543 DOI: 10.1016/j.ijpharm.2021.120969] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 07/22/2021] [Accepted: 07/30/2021] [Indexed: 11/20/2022]
Abstract
Liquid forms of active pharmaceutical ingredients, ionic liquids (ILs) and deep eutectic mixtures (DEMs), offer several potential benefits in respect to advancing pharmaceutical formulations. The aim of this study was to develop and characterise ILs/DEMs composed of two active molecules: ketoprofen (KET), as the acidic component, and a local anaesthetics (LA), lidocaine (LID), mepivacaine (MEP) or bupivacaine (BUP), which constituted the basic component. A mechanosynthetic approach was successfully applied to obtain LA-KET low melting systems. Composition/temperature phase diagrams were determined by differential scanning calorimetry. The amide LA-KET mixtures showed a eutectic behaviour during heating and formed viscous liquids upon quench cooling. Considering the quench cooled LA-KET mixtures, LA crystallisation was observed only in the LA-rich mixtures. LID, MEP and BUP formed disordered complexes with KET at an approximate 1:2 stoichiometry. Infrared spectroscopy studies revealed that the mixtures were composed mainly of hydrogen bonded acid and base molecules, but small amounts of carboxylate anions were detected. The formation of LA-KET complex not only suppressed the high crystallisation tendency of the LA molecules in the dry state, but also eliminated the crystallisation of KET and LA molecules induced by moisture, as revealed by dynamic vapour sorption studies.
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11
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B. S S, Gopalakrishnan-Prema V, Raju G, Mathew SE, Katiyar N, Menon D, Shankarappa SA. Anisotropic microparticles for differential drug release in nerve block anesthesia. RSC Adv 2021; 11:4623-4630. [PMID: 35424395 PMCID: PMC8694510 DOI: 10.1039/d0ra08386k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 01/18/2021] [Indexed: 12/17/2022] Open
Abstract
Microparticle shape, as a tunable design parameter, holds much promise for controlling drug-release kinetics from polymeric microparticulate systems. In this study we hypothesized that the intensity and duration of a local nerve block can be controlled by administration of bupivacaine-loaded stretch-induced anisotropic poly(lactic-co-glycolic acid) microparticles (MPs). MPs of size 27.3 ± 8.5 μm were synthesized by single emulsion method and subjected to controlled stretching force. The aspect ratio of the anisotropic–bupivacaine MPs was quantified, and bupivacaine release was measured in vitro. The anisotropic MPs were administered as local nerve block injections in rats, and the intensity and duration of local anesthesia was measured. Bupivacaine-loaded anisotropic MPs used in this study were ellipsoid in shape and exhibited increased surface pores in comparison to spherical MPs. Anisotropic MPs exhibited a higher rate of bupivacaine release in vitro, and showed significantly (P < 0.05) stronger sensory nerve blocking as compared to spherical bupivacaine MPs, even though the duration of the nerve block remained similar. This study demonstrates the utility of stretch-induced anisotropic MPs in controlling drug release profiles from polymeric MPs, under both in vitro and in vivo conditions. We show that shape, as a tunable design parameter, could play an important role in engineering drug-delivery systems. Stretch-induced anisotropy in bupivacaine-loaded PLGA micro particles (BMPs) induced stronger nerve blocks compared to spherical particles.![]()
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Affiliation(s)
- Shivakumar B. S
- Center for Nanosciences & Molecular Medicine
- Amrita Vishwa Vidyapeetham
- Kochi 682041
- India
| | | | - Gayathri Raju
- Center for Nanosciences & Molecular Medicine
- Amrita Vishwa Vidyapeetham
- Kochi 682041
- India
| | - Sumi E. Mathew
- Center for Nanosciences & Molecular Medicine
- Amrita Vishwa Vidyapeetham
- Kochi 682041
- India
| | - Neeraj Katiyar
- Center for Nanosciences & Molecular Medicine
- Amrita Vishwa Vidyapeetham
- Kochi 682041
- India
| | - Deepthy Menon
- Center for Nanosciences & Molecular Medicine
- Amrita Vishwa Vidyapeetham
- Kochi 682041
- India
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12
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Preparation and characterization of spiro-acridine derivative and 2-hydroxypropyl-β-cyclodextrin inclusion complex. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128945] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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Carvalho SG, Cipriano DF, de Freitas JCC, Junior MÂS, Ocaris ERY, Teles CBG, de Jesus Gouveia A, Rodrigues RP, Zanini MS, Villanova JCO. Physicochemical characterization and in vitro biological evaluation of solid compounds from furazolidone-based cyclodextrins for use as leishmanicidal agents. Drug Deliv Transl Res 2020; 10:1788-1809. [PMID: 32803562 DOI: 10.1007/s13346-020-00841-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The discovery of new drugs and dosage forms for the treatment of neglected tropical diseases, such as human and animal leishmaniasis, is gaining interest in the chemical, biological, pharmaceutical, and medical fields. Many pharmaceutical companies are exploring the use of old drugs to establishing new drug dosage forms and drug delivery systems, in particular for use in neglected diseases. The formation of complexes with cyclodextrins is widely used to improve the stability, solubility, and bioavailability of pharmaceutical drugs, as well as reduce both the toxicity and side effects of many of these drugs. The aim of this study was to characterize solid compounds obtained from the association between furazolidone (FZD) and β-cyclodextrin (β-CD) or hydroxypropyl-β-cyclodextrin (HP-β-CD). The solid compounds were prepared in molar ratios of 1:1 and 1:2 (drug:CD) by kneading and lyophilization. Molecular docking was used to predict the preferred relative orientation of FZD when bound in both studied cyclodextrins. The resulting solid compounds were qualitatively characterized by scanning electron microscopy (SEM), thermal analysis (DSC and TG/DTG), X-ray diffraction (XRD), Raman spectroscopy with image mapping (Raman mapping), and 13C nuclear magnetic resonance spectroscopy (13C NMR) in the solid state. The cytotoxicity of the compounds against THP-1 macrophages and the 50% growth inhibition (IC50) against Leishmania amazonensis promastigote forms were subsequently investigated using in vitro techniques. For all of the solid compounds obtained, the existence of an association between FZD and CD were confirmed by one or more characterization techniques (TG/DTG, DSC, SEM, XRD, RAMAN, and 13C NMR), particularly by a significant decrease in the crystallinity of these materials and a reduction in the melting enthalpy associated with furazolidone thermal events. The formation of more effective interactions occurred in the compounds prepared by lyophilization, in a 1:2 molar ratio of the two CDs studied. However, the formation of an inclusion complex was confirmed only for the solid compound obtained from HP-β-CD prepared by lyophilization (LHFZD1:2). The absence of cytotoxicity on the THP-1 macrophage lineages and the leishmanicidal activity were confirmed for all compounds. MHFZD1:2 and LHFZD1:2 were found to be very active against promastigote forms of L. amazonensis, while all others were considered only active. These results are in line with the literature, demonstrating the existence of biological activity for associations between drugs and CDs in the form of complexes and non-complexes. All solid compounds obtained were found to be promising for use as leishmanicidal agents against promastigote forms of L. amazonensis.
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Affiliation(s)
- Suzana Gonçalves Carvalho
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, 14800-903, Brazil.
- Postgraduate Program in Veterinary Sciences, Department of Veterinary Sciences, Federal University of Espírito Santo (UFES), Alegre, ES, 29500-000, Brazil.
| | - Daniel Fernandes Cipriano
- Laboratory of Carbon and Ceramic Materials, Department of Physics, Federal University of Espírito Santo (UFES), Vitória, ES, 29075-910, Brazil
| | - Jair Carlos Checon de Freitas
- Laboratory of Carbon and Ceramic Materials, Department of Physics, Federal University of Espírito Santo (UFES), Vitória, ES, 29075-910, Brazil
| | - Miguel Ângelo Schettino Junior
- Laboratory of Carbon and Ceramic Materials, Department of Physics, Federal University of Espírito Santo (UFES), Vitória, ES, 29075-910, Brazil
| | - Enrique Ronald Yapuchura Ocaris
- Laboratory of Carbon and Ceramic Materials, Department of Physics, Federal University of Espírito Santo (UFES), Vitória, ES, 29075-910, Brazil
| | - Carolina Bioni Garcia Teles
- Malaria and Leishmaniasis Bioassay Platform (PBML), Oswaldo Cruz Foundation Rondônia (FIOCRUZ), Porto Velho, Rondônia, Brazil
- Biodiversity and Biotechnology - Bionorte Network, Porto Velho, Rondônia, Brazil
- National Institute of Science and Technology in Epidemiology of the Western Amazonia (INCT-EpiAmO), Porto Velho, Rondônia, Brazil
| | - Aurileya de Jesus Gouveia
- Malaria and Leishmaniasis Bioassay Platform (PBML), Oswaldo Cruz Foundation Rondônia (FIOCRUZ), Porto Velho, Rondônia, Brazil
| | - Ricardo Pereira Rodrigues
- Graduate Program in Pharmaceutical Sciences, Federal University of Espírito Santo (UFES), Vitória, ES, 29043-900, Brazil
| | - Marcos Santos Zanini
- Postgraduate Program in Veterinary Sciences, Department of Veterinary Sciences, Federal University of Espírito Santo (UFES), Alegre, ES, 29500-000, Brazil
| | - Janaína Cecília Oliveira Villanova
- Postgraduate Program in Veterinary Sciences, Department of Veterinary Sciences, Federal University of Espírito Santo (UFES), Alegre, ES, 29500-000, Brazil
- Laboratory of Pharmaceutical Production, Department of Pharmacy and Nutrition, Federal University of Espírito Santo (UFES), Alegre, ES, 29500-000, Brazil
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Qiu G, Yue Y, Tang J, Zhao YB, Wang J. Total Bioaerosol Detection by a Succinimidyl-Ester-Functionalized Plasmonic Biosensor To Reveal Different Characteristics at Three Locations in Switzerland. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:1353-1362. [PMID: 31909609 DOI: 10.1021/acs.est.9b05184] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Bioaerosols consisting of biologically originated airborne particles such as microbes, metabolites, toxins, and fragments of microorganisms are present ubiquitously in our living environment. The international interests in bioaerosols have rapidly increased because of their many potential health effects. Thus, accurate and fast detection of total bioaerosols in different environments has become an important task for safeguarding against biological threats and broadening the pool of bioaerosol knowledge. To quickly evaluate the total bioaerosol concentration, we developed a localized surface plasmon resonance biosensor based on succinimidyl-ester-functionalized gold nanoislands (SEF-AuNIs) for quantitative bioaerosol detection. The detection limit of our proposed SEF-AuNI sensors for model bacteria Escherichia coli and Bacillus subtilis can go to 0.5119 and 1.69 cells/mL, respectively. To demonstrate the capability of this bioaerosol sensing technique, we tested aerosol samples collected from Bern (urban station), Basel (suburban station), and Rigi mountain (rural and high altitude station) in Switzerland and further investigated the correlation with endotoxin and PM10. The results substantiated that our SEF-AuNI sensors could be a reliable candidate for total bioaerosol detection and air quality assessment.
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Affiliation(s)
- Guangyu Qiu
- Institute of Environmental Engineering , ETH Zürich , Zürich 8093 , Switzerland
- Laboratory for Advanced Analytical Technologies , Empa, Swiss Federal Laboratories for Materials Science and Technology , Dübendorf 8600 , Switzerland
| | - Yang Yue
- Institute of Environmental Engineering , ETH Zürich , Zürich 8093 , Switzerland
- Laboratory for Advanced Analytical Technologies , Empa, Swiss Federal Laboratories for Materials Science and Technology , Dübendorf 8600 , Switzerland
| | - Jiukai Tang
- Institute of Environmental Engineering , ETH Zürich , Zürich 8093 , Switzerland
- Laboratory for Advanced Analytical Technologies , Empa, Swiss Federal Laboratories for Materials Science and Technology , Dübendorf 8600 , Switzerland
| | - Yi-Bo Zhao
- Institute of Environmental Engineering , ETH Zürich , Zürich 8093 , Switzerland
- Laboratory for Advanced Analytical Technologies , Empa, Swiss Federal Laboratories for Materials Science and Technology , Dübendorf 8600 , Switzerland
| | - Jing Wang
- Institute of Environmental Engineering , ETH Zürich , Zürich 8093 , Switzerland
- Laboratory for Advanced Analytical Technologies , Empa, Swiss Federal Laboratories for Materials Science and Technology , Dübendorf 8600 , Switzerland
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