1
|
Rantanen J, Rades T, Strachan C. Solid-state analysis for pharmaceuticals: Pathways to feasible and meaningful analysis. J Pharm Biomed Anal 2023; 236:115649. [PMID: 37657177 DOI: 10.1016/j.jpba.2023.115649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 08/12/2023] [Accepted: 08/13/2023] [Indexed: 09/03/2023]
Abstract
The solid state of matter is the preferred starting point for designing a pharmaceutical product. This is driven by both patient preferences and the relative ease of supplying a solid pharmaceutical product with desired quality and performance. Solid form diversity is increasingly prevalent as a crucial element in designing these products, which underpins the importance of solid-state analytical methods. This paper provides a critical analysis of challenges related to solid-state analytics, as well as considerations and suggestions for feasible and meaningful pharmaceutical analysis.
Collapse
Affiliation(s)
- Jukka Rantanen
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.
| | - Thomas Rades
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.
| | | |
Collapse
|
2
|
Chen JM, Chen SK, Jin PP, Sun SC. Identification of the ataxin-1 interaction network and its impact on spinocerebellar ataxia type 1. Hum Genomics 2022; 16:29. [PMID: 35906672 PMCID: PMC9335979 DOI: 10.1186/s40246-022-00404-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 07/22/2022] [Indexed: 12/03/2022] Open
Abstract
Background Spinocerebellar ataxia type 1 (SCA1) is a neurodegenerative disease caused by a polyglutamine expansion in the ataxin-1 protein. The pathogenic mechanism resulting in SCA1 is still unclear. Protein–protein interactions affect the function and stability of ataxin-1. Methods Wild-type and mutant ataxin-1 were expressed in HEK-293T cells. The levels of expression were assessed using real-time polymerase chain reaction (PCR) and Western blots. Co-immunoprecipitation was done in HEK-293T cells expressing exogenous wild-type and mutant ataxin-1 using anti-Flag antibody following by tandem affinity purification in order to study protein–protein interactions. The candidate interacting proteins were validated by immunoprecipitation. Chromatin immunoprecipitation and high-throughput sequencing and RNA immunoprecipitation and high-throughput sequencing were performed using HEK-293T cells expressing wild-type or mutant ataxin-1. Results In this study using HEK-293T cells, we found that wild-type ataxin-1 interacted with MCM2, GNAS, and TMEM206, while mutant ataxin-1 lost its interaction with MCM2, GNAS, and TMEM206. Two ataxin-1 binding targets containing the core GGAG or AAAT were identified in HEK-293T cells using ChIP-seq. Gene Ontology analysis of the top ataxin-1 binding genes identified SLC6A15, NTF3, KCNC3, and DNAJC6 as functional genes in neurons in vitro. Ataxin-1 also was identified as an RNA-binding protein in HEK-293T cells using RIP-seq, but the polyglutamine expansion in the ataxin-1 had no direct effects on the RNA-binding activity of ataxin-1. Conclusions An expanded polyglutamine tract in ataxin-1 might interfere with protein–protein or protein–DNA interactions but had little effect on protein–RNA interactions. This study suggested that the dysfunction of protein–protein or protein–DNA interactions is involved in the pathogenesis of SCA1.
Collapse
Affiliation(s)
- Jiu-Ming Chen
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201801, China
| | - Shi-Kai Chen
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201801, China
| | - Pei-Pei Jin
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201801, China
| | - Shun-Chang Sun
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201801, China.
| |
Collapse
|
3
|
Simovic-pavlovic M, Bokic B, Vasiljevic D, Kolaric B. Bioinspired NEMS—Prospective of Collaboration with Nature. Applied Sciences 2022; 12:905. [DOI: 10.3390/app12020905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The fields of micro- and nanomechanics are strongly interconnected with the development of micro-electro-mechanical (MEMS) and nano-electro-mechanical (NEMS) devices, their fabrication and applications. This article highlights the biomimetic concept of designing new nanodevices for advanced materials and sensing applications.
Collapse
|
4
|
Govender R, Kissi EO, Larsson A, Tho I. Polymers in pharmaceutical additive manufacturing: A balancing act between printability and product performance. Adv Drug Deliv Rev 2021; 177:113923. [PMID: 34390775 DOI: 10.1016/j.addr.2021.113923] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 07/08/2021] [Accepted: 08/09/2021] [Indexed: 12/19/2022]
Abstract
Materials and manufacturing processes share a common purpose of enabling the pharmaceutical product to perform as intended. This review on the role of polymeric materials in additive manufacturing of oral dosage forms, focuses on the interface between the polymer and key stages of the additive manufacturing process, which determine printability. By systematically clarifying and comparing polymer functional roles and properties for a variety of AM technologies, together with current and emerging techniques to characterize these properties, suggestions are provided to stimulate the use of readily available and sometimes underutilized pharmaceutical polymers in additive manufacturing. We point to emerging characterization techniques and digital tools, which can be harnessed to manage existing trade-offs between the role of polymers in printer compatibility versus product performance. In a rapidly evolving technological space, this serves to trigger the continued development of 3D printers to suit a broader variety of polymers for widespread applications of pharmaceutical additive manufacturing.
Collapse
|
5
|
Okeyo PO, Rajendran ST, Zór K, Boisen A. Sensing technologies and experimental platforms for the characterization of advanced oral drug delivery systems. Adv Drug Deliv Rev 2021; 176:113850. [PMID: 34182015 DOI: 10.1016/j.addr.2021.113850] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 06/17/2021] [Accepted: 06/22/2021] [Indexed: 12/18/2022]
Abstract
Complex and miniaturized oral drug delivery systems are being developed rapidly for targeted, controlled drug release and improved bioavailability. Standard analytical techniques are widely used to characterize i) drug carrier and active pharmaceutical ingredients before loading into a delivery device (to ensure the solid form), and ii) the entire drug delivery system during the development process. However, in light of the complexity and the size of some of these systems, standard techniques as well as novel sensing technologies and experimental platforms need to be used in tandem. These technologies and platforms are discussed in this review, with a special focus on passive delivery systems in size range from a few 100 µm to a few mm. Challenges associated with characterizing these systems and evaluating their effect on oral drug delivery in the preclinical phase are also discussed.
Collapse
|
6
|
Wei L, Kuai X, Bao Y, Wei J, Yang L, Song P, Zhang M, Yang F, Wang X. The Recent Progress of MEMS/NEMS Resonators. Micromachines (Basel) 2021; 12:724. [PMID: 34205469 PMCID: PMC8235191 DOI: 10.3390/mi12060724] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/13/2021] [Accepted: 06/14/2021] [Indexed: 01/22/2023]
Abstract
MEMS/NEMS resonators are widely studied in biological detection, physical sensing, and quantum coupling. This paper reviews the latest research progress of MEMS/NEMS resonators with different structures. The resonance performance, new test method, and manufacturing process of single or double-clamped resonators, and their applications in mass sensing, micromechanical thermal analysis, quantum detection, and oscillators are introduced in detail. The material properties, resonance mode, and application in different fields such as gyroscope of the hemispherical structure, microdisk structure, drum resonator are reviewed. Furthermore, the working principles and sensing methods of the surface acoustic wave and bulk acoustic wave resonators and their new applications such as humidity sensing and fast spin control are discussed. The structure and resonance performance of tuning forks are summarized. This article aims to classify resonators according to different structures and summarize the working principles, resonance performance, and applications.
Collapse
Affiliation(s)
- Lei Wei
- Engineering Research Center for Semiconductor Integrated Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China; (L.W.); (X.K.); (Y.B.); (J.W.); (L.Y.); (P.S.); (M.Z.); (F.Y.)
- The School of Microelectronics & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xuebao Kuai
- Engineering Research Center for Semiconductor Integrated Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China; (L.W.); (X.K.); (Y.B.); (J.W.); (L.Y.); (P.S.); (M.Z.); (F.Y.)
- School of Microelectronics, University of Science and Technology of China, Hefei 230026, China
| | - Yidi Bao
- Engineering Research Center for Semiconductor Integrated Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China; (L.W.); (X.K.); (Y.B.); (J.W.); (L.Y.); (P.S.); (M.Z.); (F.Y.)
- The School of Microelectronics & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiangtao Wei
- Engineering Research Center for Semiconductor Integrated Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China; (L.W.); (X.K.); (Y.B.); (J.W.); (L.Y.); (P.S.); (M.Z.); (F.Y.)
| | - Liangliang Yang
- Engineering Research Center for Semiconductor Integrated Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China; (L.W.); (X.K.); (Y.B.); (J.W.); (L.Y.); (P.S.); (M.Z.); (F.Y.)
- The School of Microelectronics & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peishuai Song
- Engineering Research Center for Semiconductor Integrated Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China; (L.W.); (X.K.); (Y.B.); (J.W.); (L.Y.); (P.S.); (M.Z.); (F.Y.)
- The School of Microelectronics & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mingliang Zhang
- Engineering Research Center for Semiconductor Integrated Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China; (L.W.); (X.K.); (Y.B.); (J.W.); (L.Y.); (P.S.); (M.Z.); (F.Y.)
- The School of Microelectronics & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fuhua Yang
- Engineering Research Center for Semiconductor Integrated Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China; (L.W.); (X.K.); (Y.B.); (J.W.); (L.Y.); (P.S.); (M.Z.); (F.Y.)
- The School of Microelectronics & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing Academy of Quantum Information Science, Beijing 100193, China
- Beijing Engineering Research Center of Semiconductor Micro-Nano Integrated Technology, Beijing 100083, China
| | - Xiaodong Wang
- Engineering Research Center for Semiconductor Integrated Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China; (L.W.); (X.K.); (Y.B.); (J.W.); (L.Y.); (P.S.); (M.Z.); (F.Y.)
- The School of Microelectronics & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing Academy of Quantum Information Science, Beijing 100193, China
- Beijing Engineering Research Center of Semiconductor Micro-Nano Integrated Technology, Beijing 100083, China
| |
Collapse
|
7
|
Mandsberg NK, Højgaard J, Joshi SS, Nielsen LH, Boisen A, Hwu ET. Consumer-Grade Inkjet Printer for Versatile and Precise Chemical Deposition. ACS Omega 2021; 6:7786-7794. [PMID: 33778290 PMCID: PMC7992151 DOI: 10.1021/acsomega.1c00282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
Two simple, mechanical modifications are introduced to a consumer-grade inkjet printer to greatly increase its applicability. First, roller isolation bars are added to unlock multiple prints on the same substrate without smearing. This enables printing on a diverse set of substrates (rigid, elastic, liquid, granular, and sticky). Second, spring loadings are added to increase the print precision up to 50-fold, which facilitates alignment to a pre-patterned substrate or between successive prints. Utilizing the expanded substrate compatibility and the increased print precision, we explore tunable loading of drug combinations into microdevices. This loading method has promising applications within point-of-care personalized medication. Furthermore, we show how inkjet printers with array-type printheads (in our case, 6 x 90 nozzles) allow for quasi-simultaneous loading of reactants into microfluidic systems. The ability to do a quasi-simultaneous introduction of chemicals may be particularly useful for studies of rapidly reacting systems of three or more reactants, where premature introduction can shift the initial conditions from the intended. We believe that our modifications to an affordable system will inspire researchers to explore the possibilities of inkjet printing even further.
Collapse
Affiliation(s)
- Nikolaj Kofoed Mandsberg
- Center for Intelligent Drug
Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN),
Department of Health Technology, Technical
University of Denmark, 2800 Kgs Lyngby, Denmark
| | - Jesper Højgaard
- Center for Intelligent Drug
Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN),
Department of Health Technology, Technical
University of Denmark, 2800 Kgs Lyngby, Denmark
| | - Shreya Suhas Joshi
- Center for Intelligent Drug
Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN),
Department of Health Technology, Technical
University of Denmark, 2800 Kgs Lyngby, Denmark
| | - Line Hagner Nielsen
- Center for Intelligent Drug
Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN),
Department of Health Technology, Technical
University of Denmark, 2800 Kgs Lyngby, Denmark
| | - Anja Boisen
- Center for Intelligent Drug
Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN),
Department of Health Technology, Technical
University of Denmark, 2800 Kgs Lyngby, Denmark
| | - En Te Hwu
- Center for Intelligent Drug
Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN),
Department of Health Technology, Technical
University of Denmark, 2800 Kgs Lyngby, Denmark
| |
Collapse
|
8
|
Herzberg M, Zeng G, Mäkilä E, Murtomaa M, Søgaard SV, Garnæs J, Madsen AØ, Rantanen J. Effect of dehydration pathway on the surface properties of molecular crystals. CrystEngComm 2021. [DOI: 10.1039/d1ce00539a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Atomic force microscopy was used to determine roughness, elastic modulus and work function after thermally-induced and solvent-induced dehydration. These properties correlated with electric charging to provide insight into behaviour of bulk powders.
Collapse
Affiliation(s)
- M. Herzberg
- Department of Pharmacy, University of Copenhagen, Denmark
| | - G. Zeng
- Danish Fundamental Metrology, Hørsholm, Denmark
| | - E. Mäkilä
- Department of Physics and Astronomy, University of Turku, Finland
| | - M. Murtomaa
- Department of Physics and Astronomy, University of Turku, Finland
| | | | - J. Garnæs
- Danish Fundamental Metrology, Hørsholm, Denmark
| | - A. Ø. Madsen
- Department of Pharmacy, University of Copenhagen, Denmark
| | - J. Rantanen
- Department of Pharmacy, University of Copenhagen, Denmark
| |
Collapse
|