1
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Alvarez-Lorenzo C, Zarur M, Seijo-Rabina A, Blanco-Fernandez B, Rodríguez-Moldes I, Concheiro A. Physical stimuli-emitting scaffolds: The role of piezoelectricity in tissue regeneration. Mater Today Bio 2023; 22:100740. [PMID: 37521523 PMCID: PMC10374602 DOI: 10.1016/j.mtbio.2023.100740] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/01/2023] [Accepted: 07/19/2023] [Indexed: 08/01/2023] Open
Abstract
The imbalance between life expectancy and quality of life is increasing due to the raising prevalence of chronic diseases. Musculoskeletal disorders and chronic wounds affect a growing percentage of people and demand more efficient tools for regenerative medicine. Scaffolds that can better mimic the natural physical stimuli that tissues receive under healthy conditions and during healing may significantly aid the regeneration process. Shape, mechanical properties, pore size and interconnectivity have already been demonstrated to be relevant scaffold features that can determine cell adhesion and differentiation. Much less attention has been paid to scaffolds that can deliver more dynamic physical stimuli, such as electrical signals. Recent developments in the precise measurement of electrical fields in vivo have revealed their key role in cell movement (galvanotaxis), growth, activation of secondary cascades, and differentiation to different lineages in a variety of tissues, not just neural. Piezoelectric scaffolds can mimic the natural bioelectric potentials and gradients in an autonomous way by generating the electric stimuli themselves when subjected to mechanical loads or, if the patient or the tissue lacks mobility, ultrasound irradiation. This review provides an analysis on endogenous bioelectrical signals, recent developments on piezoelectric scaffolds for bone, cartilage, tendon and nerve regeneration, and their main outcomes in vivo. Wound healing with piezoelectric dressings is addressed in the last section with relevant examples of performance in animal models. Results evidence that a fine adjustment of material composition and processing (electrospinning, corona poling, 3D printing, annealing) provides scaffolds that act as true emitters of electrical stimuli that activate endogenous signaling pathways for more efficient and long-term tissue repair.
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Affiliation(s)
- Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia, Instituto de Materiales (iMATUS) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Mariana Zarur
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia, Instituto de Materiales (iMATUS) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Alejandro Seijo-Rabina
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia, Instituto de Materiales (iMATUS) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Barbara Blanco-Fernandez
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia, Instituto de Materiales (iMATUS) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Isabel Rodríguez-Moldes
- Grupo NEURODEVO, Departamento de Bioloxía Funcional, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia, Instituto de Materiales (iMATUS) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
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2
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Zhou Q, Si Z, Wang K, Li K, Hong W, Zhang Y, Li P. Enzyme-triggered smart antimicrobial drug release systems against bacterial infections. J Control Release 2022; 352:507-526. [PMID: 36341932 DOI: 10.1016/j.jconrel.2022.10.038] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 10/17/2022] [Accepted: 10/22/2022] [Indexed: 11/06/2022]
Abstract
The rapid emergence and spread of drug-resistant bacteria, as one of the most pressing public health threats, are declining our arsenal of available antimicrobial drugs. Advanced antimicrobial drug delivery systems that can achieve precise and controlled release of antimicrobial agents in the microenvironment of bacterial infections will retard the development of antimicrobial resistance. A variety of extracellular enzymes are secreted by bacteria to destroy physical integrity of tissue during their invasion of host body, which can be utilized as stimuli to trigger "on-demand" release of antimicrobials. In the past decade, such bacterial enzyme responsive drug release systems have been intensively studied but few review has been released. Herein, we systematically summarize the recent progress of smart antimicrobial drug delivery systems triggered by bacteria secreted enzymes such as lipase, hyaluronidase, protease and antibiotic degrading enzymes. The perspectives and existing key issues of this field will also be discussed to fuel the innovative research and translational application in the future.
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Affiliation(s)
- Qian Zhou
- Frontiers Science Center for Flexible Electronics, (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Zhangyong Si
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Kun Wang
- Frontiers Science Center for Flexible Electronics, (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Kunpeng Li
- Frontiers Science Center for Flexible Electronics, (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Weilin Hong
- Frontiers Science Center for Flexible Electronics, (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Yuezhou Zhang
- Frontiers Science Center for Flexible Electronics, (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China.
| | - Peng Li
- Frontiers Science Center for Flexible Electronics, (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China.
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3
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Zhang Z, Ekanem EE, Nakajima M, Bolognesi G, Vladisavljević GT. Monodispersed Sirolimus-Loaded PLGA Microspheres with a Controlled Degree of Drug–Polymer Phase Separation for Drug-Coated Implantable Medical Devices and Subcutaneous Injection. ACS APPLIED BIO MATERIALS 2022; 5:3766-3777. [PMID: 35848106 PMCID: PMC9382632 DOI: 10.1021/acsabm.2c00319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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Monodispersed sirolimus (SRL)-loaded poly(lactic-co-glycolic acid) microspheres with a diameter of 1.8, 3.8,
and 8.5
μm were produced by high-throughput microfluidic step emulsification—solvent
evaporation using single crystal silicon chips consisted of 540–1710
terraced microchannels with a depth of 2, 4, or 5 μm arranged
in 10 parallel arrays. Uniform sized droplets were generated over
25 h across all channels. Nearly 15% of the total drug was released
by the initial burst release during an accelerated drug release testing
performed at 37 °C using a hydrotropic solution containing 5.8
M N,N-diethylnicotinamide. After
24 h, 71% of the drug was still entrapped in the particles. The internal
morphology of microspheres was investigated by fluorescence microscopy
using Nile red as a selective fluorescent stain with higher binding
affinity toward SRL. By increasing the drug loading from 33 to 50
wt %, the particle morphology evolved from homogeneous microspheres,
in which the drug and polymer were perfectly mixed, to patchy particles,
with amorphous drug patches embedded within a polymer matrix to anisotropic
patchy Janus particles. Janus particles with fully segregated drug
and polymer regions were achieved by pre-saturating the aqueous phase
with the organic solvent, which decreased the rate of solvent evaporation
and allowed enough time for complete phase separation. This approach
to manufacturing drug-loaded monodisperse microparticles can enable
the development of more effective implantable drug-delivery devices
and improved methods for subcutaneous drug administration, which can
lead to better therapeutic treatments.
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Affiliation(s)
- Zilin Zhang
- Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, U.K
- Guangxi Key Laboratory of Green Chemical Materials and Safety Technology, Beibu Gulf University, Qinzhou 535011, China
| | - Ekanem E. Ekanem
- Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, U.K
- Department of Chemical Engineering, University of Bath, Bath BA2 7AY, U.K
| | - Mitsutoshi Nakajima
- Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8572, Japan
| | - Guido Bolognesi
- Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, U.K
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4
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Chen Y, An Q, Teng K, Zhang Y, Zhao Y. Latest development and versatile applications of highly integrating drug delivery patch. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Salama A. On the estimation of the size of a droplet emerging from a pore opening into a crossflow field. SOFT MATTER 2022; 18:1920-1940. [PMID: 35188174 DOI: 10.1039/d1sm01204e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The problem of terminating a droplet at the surface of a membrane in a crossflow field is an important topic in the context of controlled emulsification of fluids for use in pharmaceutical and other industries. Some of these industries struggle to produce emulsions of uniform sizes for their products requiring higher levels of precision. In this work, we comprehensively investigated one such technique in which droplets were produced via membrane openings and were terminated via a crossflow field. Conditions of permeation and termination were identified. A model was developed to estimate the size of the emerging droplets from information about the interfacial properties, geometry, and operating conditions (i.e., pressure and crossflow velocity). Three forces, including capillary pressure, interfacial tension, and drag forces, were identified that account for a developed torque balance, which was then used to determine the onset of breakup of an emerging droplet. A comprehensive computational fluid dynamics (CFD) analysis has been conducted to highlight the physics involved in the process and also to provide scenarios for comparison exercises. The effects of crossflow velocity, applied pressure, and viscosity contrasts have been studied. It has been determined that the emerging droplet experiences deformation along the crossflow field because of the hydrodynamic drag. The receding portion of the contact line at the surface of the membrane wraps around the pore opening, generating an interfacial tension force that produces an opposing torque due to the crossflow drag and capillary pressure. Using this phenomenon, a framework for estimating the size of the droplet upon breakup is established. Comparisons with the results obtained from the CFD analysis under different conditions show very good agreement, which builds confidence in the modeling approach.
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Affiliation(s)
- Amgad Salama
- Process System Engineering, Faculty of Engineering and Applied Science, University of Regina, Regina, SK, S4S 0A2, Canada.
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6
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Modification of indwelling PVC catheters by ionizing radiation with temperature- and pH-responsive polymers for antibiotic delivery. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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7
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Battistella C, Liang Y, Gianneschi NC. Innovations in Disease State Responsive Soft Materials for Targeting Extracellular Stimuli Associated with Cancer, Cardiovascular Disease, Diabetes, and Beyond. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2007504. [PMID: 34145625 PMCID: PMC9836048 DOI: 10.1002/adma.202007504] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 01/20/2021] [Indexed: 05/10/2023]
Abstract
Recent advances in polymer chemistry, materials sciences, and biotechnology have allowed the preclinical development of sophisticated programmable nanomedicines and materials that are able to precisely respond to specific disease-associated triggers and microenvironments. These stimuli, endogenous to the targeted diseases, include pH, redox-state, small molecules, and protein upregulation. Herein, recent advances and innovative approaches in programmable soft materials capable of sensing the aforementioned disease-associated stimuli and responding via a range of dynamic processes including morphological and size transitions, changes in mobility and retention, as well as disassembly are described. In this field generally, the majority of ongoing and past research effort has focused on oncology. Given this interest, examples of the latest innovative approaches to chemo- and immunotherapy treatment strategies for cancer are presented. Moreover, as the field broadens its attention, applications of programmable materials in other diseases are highlighted, with a special focus on cardiovascular disease and diabetes mellitus, where limited attention is paid by the field, but where many promising avenues exist with high potential impact.
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Affiliation(s)
- Claudia Battistella
- Department of Chemistry, International Institute for Nanotechnology, Simpson-Querrey Institute, Chemistry of Life Processes Institute, Northwestern University, Evanston, IL, 60208, USA
- Department of Materials Science and Engineering, Department of Biomedical Engineering, Department of Pharmacology, Northwestern University, Evanston, IL, 60208, USA
| | - Yifei Liang
- Department of Chemistry, International Institute for Nanotechnology, Simpson-Querrey Institute, Chemistry of Life Processes Institute, Northwestern University, Evanston, IL, 60208, USA
| | - Nathan C Gianneschi
- Department of Chemistry, International Institute for Nanotechnology, Simpson-Querrey Institute, Chemistry of Life Processes Institute, Northwestern University, Evanston, IL, 60208, USA
- Department of Materials Science and Engineering, Department of Biomedical Engineering, Department of Pharmacology, Northwestern University, Evanston, IL, 60208, USA
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8
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Li W, Yang Y, Ehrhardt CJ, Lewinski N, Gascoyne D, Lucas G, Zhao H, Wang X. 3D Printing of Antibacterial Polymer Devices Based on Nitric Oxide Release from Embedded S-Nitrosothiol Crystals. ACS APPLIED BIO MATERIALS 2021; 4:7653-7662. [PMID: 35006705 DOI: 10.1021/acsabm.1c00887] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Controlled release of drugs from medical implants is an effective approach to reducing foreign body reactions and infections. We report here on a one-step 3D printing strategy to create drug-eluting polymer devices with a drug-loaded bulk and a drug-free coating. The spontaneously formed drug-free coating dramatically reduces the surface roughness of the implantable devices and serves as a protective layer to suppress the burst release of drugs. A high viscosity liquid silicone that can be extruded based on its shear-thinning property and quickly vulcanize upon exposure to ambient moisture is used as the ink for 3D printing. S-Nitrosothiol type nitric oxide (NO) donors in their crystalline forms are selected as model drugs because of the potent antimicrobial, antithrombotic, and anti-inflammatory properties of NO. Direct ink writing of the homogenized polymer-drug mixtures generates rough and ill-defined device surfaces because of the exposed S-nitrosothiol microparticles. When a low-viscosity silicone (polydimethylsiloxane) is added into the ink, this silicone diffuses outward upon deposition to form a drug-free outermost layer without compromising the integrity of the printed structures. S-Nitrosoglutathione (GSNO) or S-nitroso-N-acetylpenicillamine (SNAP) embedded in the printed silicone matrix releases NO under physiological conditions from days to about one month. The microsized drug crystals are well-preserved in the ink preparation and printing processes, which is one reason for the sustained NO release. Biofilm and cytotoxicity experiments confirmed the antibacterial property and safety of the printed NO-releasing devices. This additive manufacturing platform does not require dissolution of drugs and involves no thermal or UV processes and, therefore, offers unique opportunities to produce drug-eluting silicone devices in a customized manner.
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Affiliation(s)
- Wuwei Li
- Department of Chemistry, Virginia Commonwealth University, 1001 W. Main Street, Richmond, Virginia 23284, United States
| | - Yuanhang Yang
- Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, BioTech One, 800 East Leigh Street, Richmond, Virginia 23219, United States
| | - Christopher J Ehrhardt
- Department of Forensic Science, Virginia Commonwealth University, 1015 Floyd Avenue, Richmond, Virginia 23284, United States
| | - Nastassja Lewinski
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W. Main Street, Richmond, Virginia 23284, United States
| | - David Gascoyne
- Momentive Performance Materials Inc., 260 Hudson River Road, Waterford, New York 12188, United States
| | - Gary Lucas
- Momentive Performance Materials Inc., 260 Hudson River Road, Waterford, New York 12188, United States
| | - Hong Zhao
- Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, BioTech One, 800 East Leigh Street, Richmond, Virginia 23219, United States
| | - Xuewei Wang
- Department of Chemistry, Virginia Commonwealth University, 1001 W. Main Street, Richmond, Virginia 23284, United States
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9
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Liu Y, Zhang F, Lang S, Yang L, Gao S, Wu D, Liu G, Wang Y. A Uniform and Robust Bioinspired Zwitterion Coating for Use in Blood-Contacting Catheters with Improved Anti-Inflammatory and Antithrombotic Properties. Macromol Biosci 2021; 21:e2100341. [PMID: 34644005 DOI: 10.1002/mabi.202100341] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/10/2021] [Indexed: 11/10/2022]
Abstract
Inflammation and thrombosis are two major complications of blood-contacting catheters that are used as extracorporeal circuits for hemodialysis and life-support systems. In clinical applications, complications can lead to increased mortality and morbidity rates. In this work, a biomimetic erythrocyte membrane zwitterion coating based on poly(2-methacryloyloxyethyl phosphorylcholine-co-dopamine methacrylate) (pMPCDA) copolymers is uniformly and robustly modified onto a polyvinyl chloride (PVC) catheter via mussel-inspired surface chemistry. The zwitterionic pMPCDA coating exhibits excellent antifouling activity and resists bacterial adhesion, fibrinogen adsorption, and platelet adhesion/activation. The material also demonstrates great hemocompatibility, cytocompatibility, and anticoagulation properties in vitro. Additionally, this biocompatible pMPCDA coating reduces in vivo foreign-body reactions by mitigating inflammatory response and collagen capsule formation, due to its outstanding ability to resist nonspecific protein adsorption. More importantly, when compared with a bare PVC catheter, the pMPCDA coating exhibits outstanding antithrombotic properties when tested in an ex vivo rabbit perfusion model. Thus, it is envisioned that this biomimetic erythrocyte membrane surface strategy will provide a promising way to mitigate inflammation and thrombosis caused by the use of blood-contacting catheters.
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Affiliation(s)
- Yuqi Liu
- Collage of Biomass Chemistry and Engineering, Sichuan University, Chengdu, 610065, China.,National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu, 610065, China
| | - Fanjun Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Shiying Lang
- Collage of Biomass Chemistry and Engineering, Sichuan University, Chengdu, 610065, China.,National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu, 610065, China
| | - Li Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Shuai Gao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China.,Chengdu Daxan Innovative Medical Tech. Co., Ltd, Chengdu, 611135, China
| | - Dimeng Wu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China.,Chengdu Daxan Innovative Medical Tech. Co., Ltd, Chengdu, 611135, China
| | - Gongyan Liu
- Collage of Biomass Chemistry and Engineering, Sichuan University, Chengdu, 610065, China.,National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu, 610065, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
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10
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Antich-Isern P, Caro-Barri J, Aparicio-Blanco J. The combination of medical devices and medicinal products revisited from the new European legal framework. Int J Pharm 2021; 607:120992. [PMID: 34390808 DOI: 10.1016/j.ijpharm.2021.120992] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 07/20/2021] [Accepted: 08/08/2021] [Indexed: 02/06/2023]
Abstract
Medical devices and medicinal products have many similarities in their nature, scope or specific medical purposes, and despite the differences in their principal means of action, they are often used in combination. Indeed, many medicinal products depend on medical devices for their administration, and it is increasingly common for medical devices to contain medicinal substances to support their action. Therefore, the combination of medicinal products and medical devices provides additional benefits for patients. However, their higher technical complexity requires a strengthening of their authorisation and certification requirements. In this regard, more comprehensive requirements and classification rules are introduced by a new European regulation on medical devices that fully applies from May 26th 2021. On account of their therapeutic significance, this review aims at gaining insight into the borderline between medical devices and medicinal products in this new 2021 regulatory framework. For the first time, any item containing a medical device and a medicinal product will have both parts evaluated. Through exemplification of both marketed and investigational devices incorporating medicinal substances and drug-device combinations, the new European requirements and their implications are thoroughly illustrated herein.
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Affiliation(s)
- Pau Antich-Isern
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Madrid, Spain
| | - Julia Caro-Barri
- Notified Body 0318, Spanish Agency of Medicines and Medical Devices (AEMPS), Madrid, Spain
| | - Juan Aparicio-Blanco
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Madrid, Spain; Institute of Industrial Pharmacy, Complutense University of Madrid, Madrid, Spain.
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11
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Saxena P, Shukla P. A comparative analysis of the basic properties and applications of poly (vinylidene fluoride) (PVDF) and poly (methyl methacrylate) (PMMA). Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03790-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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12
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Synthesis and characterization of pH responsive alginate based-hydrogels as oral drug delivery carrier. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02231-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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13
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Mabilat C, Gros MF, Nicolau D, Mouton JW, Textoris J, Roberts JA, Cotta MO, van Belkum A, Caniaux I. Diagnostic and medical needs for therapeutic drug monitoring of antibiotics. Eur J Clin Microbiol Infect Dis 2020; 39:791-797. [PMID: 31828686 PMCID: PMC7182631 DOI: 10.1007/s10096-019-03769-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Therapeutic drug monitoring (TDM) of antibiotics has been practiced for more than half a century, but it is still not widely applied for infected patients. It has a traditional focus on limiting toxicity of specific classes of antibiotics such as aminoglycosides and vancomycin. With more patients in critical care with higher levels of sickness severity and immunosuppression as well as an increasingly obese and ageing population, an increasing risk of suboptimal antibiotic exposure continues to escalate. As such, the value of TDM continues to expand, especially for beta-lactams which constitute the most frequently used antibiotic class. To date, the minimum inhibitory concentration (MIC) of infectious microbes rather than classification in terms of susceptible and resistant can be reported. In parallel, increasingly sophisticated TDM technology is becoming available ensuring that TDM is feasible and can deliver personalized antibiotic dosing schemes. There is an obvious need for extensive studies that will quantify the improvements in clinical outcome of individual TDM-guided dosing. We suggest that a broad diagnostic and medical investigation of the TDM arena, including market analyses and analytical technology assessment, is a current priority.
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Affiliation(s)
- Claude Mabilat
- Medical Affairs, bioMérieux, Marcy l'Étoile, Lyon, France.
| | | | - David Nicolau
- Center for Anti-Infective Research & Development, Hartford Hospital, 80 Seymour Street, Hartford, CT, 06102, USA
| | - Johan W Mouton
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Centre, Rotterdam, Dr Molewaterplein 40, 3015 GD, Rotterdam, Netherlands
| | | | - Jason A Roberts
- Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
- School of Pharmacy, The University of Queensland, Brisbane, Queensland, Australia
- Pharmacy Department, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
| | - Menino O Cotta
- Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
- School of Pharmacy, The University of Queensland, Brisbane, Queensland, Australia
- Pharmacy Department, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
| | - Alex van Belkum
- Data Analytics Department, bioMérieux, La Balme Les Grottes, Grenoble, France
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14
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Alvarez-Lorenzo C, Grinberg VY, Burova TV, Concheiro A. Stimuli-sensitive cross-linked hydrogels as drug delivery systems: Impact of the drug on the responsiveness. Int J Pharm 2020; 579:119157. [DOI: 10.1016/j.ijpharm.2020.119157] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 02/14/2020] [Accepted: 02/15/2020] [Indexed: 12/19/2022]
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