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Ma M, Sun R, Kang H, Wang S, Jia P, Song Y, Sun J. Direct writing concave structure on viscoelastic substrate for loading and releasing liquid on skin surface. Colloids Surf B Biointerfaces 2023; 231:113571. [PMID: 37797469 DOI: 10.1016/j.colsurfb.2023.113571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 08/21/2023] [Accepted: 09/26/2023] [Indexed: 10/07/2023]
Abstract
Droplet deposition on deformable matrix has a broad application prospect. Regular deposition and diffusion of droplet on the substrate is the key to prepare flexible concave structure. Direct writing technique is an advanced method for depositing ink droplet on various substrates, which could produce a variety of deposition forms. Meanwhile, direct writing technique has the characteristics of simplicity, convenience and strong controllability. In this work, patterned concave structure was fabricated with viscoelastic substrate by direct writing technology, depositing behavior of ink droplet, formation condition and shape control of concave structure were studied with viscoelastic substrate, and practical application of the patterned concave structure was explored in loading and releasing liquid on skin surface. This study provides an efficient method for the preparation and application of controllable concave surface.
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Affiliation(s)
- Mengdi Ma
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, State Key Laboratory of Biobased Material and Green Papermaking, Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Rui Sun
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, State Key Laboratory of Biobased Material and Green Papermaking, Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Haiting Kang
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, State Key Laboratory of Biobased Material and Green Papermaking, Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Shuo Wang
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, State Key Laboratory of Biobased Material and Green Papermaking, Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Peng Jia
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, State Key Laboratory of Biobased Material and Green Papermaking, Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Yanlin Song
- Xiangfu Laboratory, Building 5, No. 828 Zhongxing Road, Xitang Town, Jiashan, Jiaxing, Zhejiang 314102, China; Key Laboratory of Green Printing, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China
| | - Jiazhen Sun
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, State Key Laboratory of Biobased Material and Green Papermaking, Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; Department of Printing and Packaging Engineering, Shanghai Publishing and Printing College, Shanghai 200093, China.
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2
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Dang Z, Jiang Y, Su X, Wang Z, Wang Y, Sun Z, Zhao Z, Zhang C, Hong Y, Liu Z. Particle Counting Methods Based on Microfluidic Devices. MICROMACHINES 2023; 14:1722. [PMID: 37763885 PMCID: PMC10534595 DOI: 10.3390/mi14091722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 08/30/2023] [Accepted: 08/30/2023] [Indexed: 09/29/2023]
Abstract
Particle counting serves as a pivotal constituent in diverse analytical domains, encompassing a broad spectrum of entities, ranging from blood cells and bacteria to viruses, droplets, bubbles, wear debris, and magnetic beads. Recent epochs have witnessed remarkable progressions in microfluidic chip technology, culminating in the proliferation and maturation of microfluidic chip-based particle counting methodologies. This paper undertakes a taxonomical elucidation of microfluidic chip-based particle counters based on the physical parameters they detect. These particle counters are classified into three categories: optical-based counters, electrical-based particle counters, and other counters. Within each category, subcategories are established to consider structural differences. Each type of counter is described not only in terms of its working principle but also the methods employed to enhance sensitivity and throughput. Additionally, an analysis of future trends related to each counter type is provided.
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Affiliation(s)
- Zenglin Dang
- College of Marine Engineering, Dalian Maritime University, Dalian 116026, China; (Z.D.); (Y.J.); (X.S.); (Y.W.); (Z.S.); (Z.Z.); (Y.H.)
| | - Yuning Jiang
- College of Marine Engineering, Dalian Maritime University, Dalian 116026, China; (Z.D.); (Y.J.); (X.S.); (Y.W.); (Z.S.); (Z.Z.); (Y.H.)
| | - Xin Su
- College of Marine Engineering, Dalian Maritime University, Dalian 116026, China; (Z.D.); (Y.J.); (X.S.); (Y.W.); (Z.S.); (Z.Z.); (Y.H.)
| | - Zhihao Wang
- College of Marine Electrical Engineering, Dalian Maritime University, Dalian 116026, China;
| | - Yucheng Wang
- College of Marine Engineering, Dalian Maritime University, Dalian 116026, China; (Z.D.); (Y.J.); (X.S.); (Y.W.); (Z.S.); (Z.Z.); (Y.H.)
| | - Zhe Sun
- College of Marine Engineering, Dalian Maritime University, Dalian 116026, China; (Z.D.); (Y.J.); (X.S.); (Y.W.); (Z.S.); (Z.Z.); (Y.H.)
| | - Zheng Zhao
- College of Marine Engineering, Dalian Maritime University, Dalian 116026, China; (Z.D.); (Y.J.); (X.S.); (Y.W.); (Z.S.); (Z.Z.); (Y.H.)
| | - Chi Zhang
- College of Transportation Engineering, Dalian Maritime University, Dalian 116026, China;
| | - Yuming Hong
- College of Marine Engineering, Dalian Maritime University, Dalian 116026, China; (Z.D.); (Y.J.); (X.S.); (Y.W.); (Z.S.); (Z.Z.); (Y.H.)
| | - Zhijian Liu
- College of Marine Engineering, Dalian Maritime University, Dalian 116026, China; (Z.D.); (Y.J.); (X.S.); (Y.W.); (Z.S.); (Z.Z.); (Y.H.)
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He Z, Yang X, Mu L, Wang N, Lan X. A versatile “3M” methodology to obtain superhydrophobic PDMS-based materials for antifouling applications. Front Bioeng Biotechnol 2022; 10:998852. [PMID: 36105602 PMCID: PMC9464926 DOI: 10.3389/fbioe.2022.998852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 08/11/2022] [Indexed: 11/13/2022] Open
Abstract
Fouling, including inorganic, organic, bio-, and composite fouling seriously affects our daily life. To reduce these effects, antifouling strategies including fouling resistance, release, and degrading, have been proposed. Superhydrophobicity, the most widely used characteristic for antifouling that relies on surface wettability, can provide surfaces with antifouling abilities owing to its fouling resistance and/or release effects. PDMS shows valuable and wide applications in many fields, and due to the inherent hydrophobicity, superhydrophobicity can be achieved simply by roughening the surface of pure PDMS or its composites. In this review, we propose a versatile “3M” methodology (materials, methods, and morphologies) to guide the fabrication of superhydrophobic PDMS-based materials for antifouling applications. Regarding materials, pure PDMS, PDMS with nanoparticles, and PDMS with other materials were introduced. The available methods are discussed based on the different materials. Materials based on PDMS with nanoparticles (zero-, one-, two-, and three-dimensional nanoparticles) are discussed systematically as typical examples with different morphologies. Carefully selected materials, methods, and morphologies were reviewed in this paper, which is expected to be a helpful reference for future research on superhydrophobic PDMS-based materials for antifouling applications.
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Affiliation(s)
- Zhoukun He
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
| | - Xiaochen Yang
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
- School of Mechanical Engineering, Chengdu University, Chengdu, China
| | - Linpeng Mu
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
- School of Mechanical Engineering, Chengdu University, Chengdu, China
| | - Na Wang
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
- School of Mechanical Engineering, Chengdu University, Chengdu, China
| | - Xiaorong Lan
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, China
- Institute of Stomatology, Southwest Medical University, Luzhou, China
- *Correspondence: Xiaorong Lan,
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4
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Duan Y, Yi P, Ding Y, Li B, Xiong Y, Guo S. Fast fabrication of a light‐scattering polycarbonate with high transmittance, high haze, and excellent flame‐retardant performance. J Appl Polym Sci 2022. [DOI: 10.1002/app.53055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yuhao Duan
- State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology Polymer Research Institute of Sichuan University Chengdu China
| | - Ping Yi
- State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology Polymer Research Institute of Sichuan University Chengdu China
| | - Yitong Ding
- State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology Polymer Research Institute of Sichuan University Chengdu China
| | - Bowen Li
- State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology Polymer Research Institute of Sichuan University Chengdu China
| | - Ying Xiong
- State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology Polymer Research Institute of Sichuan University Chengdu China
| | - Shaoyun Guo
- State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology Polymer Research Institute of Sichuan University Chengdu China
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Synthesis and Hydrophilicity Analysis of bis(propane-1,2-diol) Terminated Polydimethylsiloxanes (PDMSs). MATERIALS 2022; 15:ma15030753. [PMID: 35160706 PMCID: PMC8836733 DOI: 10.3390/ma15030753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/04/2022] [Accepted: 01/14/2022] [Indexed: 12/10/2022]
Abstract
Among silicone oligomers, polydimethylsiloxane (PDMS) is widely used industrially and has the advantage of improving the properties of other compounds, such as flame-retardant polyurethane (PU). However, as there are barriers to the synthesis of PU-grafted siloxane, owing to the polarity difference between isocyanate and PDMS, numerous research efforts are being aimed at improving the hydrophilicity of PDMS. To improve the hydrophilicity and reactivity of hydroxyl PDMS, bis(propane-1,2-diol)-terminated PDMS (G-PDMS-G) with four hydroxy (-OH) groups was synthesized through ring-opening addition to replace both ends of linear α,ω-hydroxyl PDMS (HO-PDMS-OH) with glycidol, resulting in hydrophilic PDMS rather than dihydroxy PDMS. In all cases of G-PDMS-G, the contact angle and viscosity both decreased by more than 20%, confirming the improved hydrophilicity. In particular, G-PDMS-G-3, which has the largest molecular weight, demonstrated the greatest decrease in viscosity and contact angle (33%).
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6
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Juneja S, Pandey S. Classifying deep eutectic solvents for polymer solvation via intramolecular dimer formation. Phys Chem Chem Phys 2022; 24:21655-21665. [DOI: 10.1039/d2cp03114k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Deep eutectic solvents (DESs) have emerged as versatile and inexpensive solubilizing media with widely varying physicochemical properties. Establishing characteristics of a novel solvent milieu for polymer dissolution is an important...
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7
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Chmielowiec A, Woś W, Gumieniak J. Viscosity Approximation of PDMS Using Weibull Function. MATERIALS (BASEL, SWITZERLAND) 2021; 14:6060. [PMID: 34683652 PMCID: PMC8538874 DOI: 10.3390/ma14206060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/07/2021] [Accepted: 10/08/2021] [Indexed: 11/21/2022]
Abstract
The viscosity of a fluid is one of its basic physico-chemical properties. The modelling of this property as a function of temperature has been the subject of intensive studies. The knowledge of how viscosity and temperature variation are related is particularly important for applications that use the intrinsic friction of fluids to dissipate energy, for example viscous torsional vibration dampers using high viscosity poly(dimethylsiloxane) as a damping factor. This article presents a new method for approximating the dynamic viscosity of poly(dimethylsiloxane). It is based on the three-parameter Weibull function that far better reflects the relationship between viscosity and temperature compared with the models used so far. Accurate mapping of dynamic viscosity is vitally important from the point of view of the construction of viscous dampers, as it allows for accurate estimation of their efficiency in the energy dissipation process.
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Affiliation(s)
| | - Weronika Woś
- The Faculty of Mechanics and Technology, Rzeszow University of Technology, ul. Kwiatkowskiego 4, 37-450 Stalowa Wola, Poland; (A.C.); (J.G.)
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8
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Jorge M, Milne AW, Barrera MC, Gomes JR. New Force-Field for Organosilicon Molecules in the Liquid Phase. ACS PHYSICAL CHEMISTRY AU 2021; 1:54-69. [PMID: 34939073 PMCID: PMC8679648 DOI: 10.1021/acsphyschemau.1c00014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Indexed: 11/29/2022]
Abstract
In this paper, we present a new molecular model that can accurately predict thermodynamic liquid state and phase-change properties for organosilicon molecules including several functional groups (alkylsilane, alkoxysilane, siloxane, and silanol). These molecules are of great importance in geological processes, biological systems, and material science, yet no force field currently exists that is widely applicable to organosilicates. The model is parametrized according to the recent Polarization-Consistent Approach (PolCA), which allows for polarization effects to be incorporated into a nonpolarizable model through post facto correction terms and is therefore consistent with previous parametrizations of the PolCA force field. Alkyl groups are described by the United-Atom approach, bond and angle parameters were taken from previous literature studies, dihedral parameters were fitted to new quantum chemical energy profiles, point charges were calculated from quantum chemical optimizations in a continuum solvent, and Lennard-Jones dispersion/repulsion parameters were fitted to match the density and enthalpy of vaporization of a small number of selected compounds. Extensive validation efforts were carried out, after careful collection and curation of experimental data for organosilicates. Overall, the model performed quite well for the density, enthalpy of vaporization, dielectric constant, and self-diffusion coefficient, but it slightly overestimated the magnitude of self-solvation free energies. The modular and transferable nature of the PolCA force field allows for further extensions to other types of silicon-containing compounds.
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Affiliation(s)
- Miguel Jorge
- Department
of Chemical and Process Engineering, University
of Strathclyde, 75 Montrose Street, Glasgow G1 1XJ, United Kingdom,
| | - Andrew W. Milne
- Department
of Chemical and Process Engineering, University
of Strathclyde, 75 Montrose Street, Glasgow G1 1XJ, United Kingdom
| | - Maria Cecilia Barrera
- Department
of Chemical and Process Engineering, University
of Strathclyde, 75 Montrose Street, Glasgow G1 1XJ, United Kingdom
| | - José R.
B. Gomes
- CICECO
− Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
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A review on the applications of electrospun chitosan nanofibers for the cancer treatment. Int J Biol Macromol 2021; 183:790-810. [PMID: 33965480 DOI: 10.1016/j.ijbiomac.2021.05.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/24/2021] [Accepted: 05/01/2021] [Indexed: 01/20/2023]
Abstract
In recent years, the incidence of cancer is increasing every day due to poor quality of life (industrialization of life). Therefore, the treatment of cancer has received much attention from therapists. So far, many anticancer drugs have been used to treat cancer patents. However, the direct use of the anticancer drugs has the adverse side effects for patents and several limitations to treat process. Natural chitosan nanofibers prepared by electrospinning method have unique properties such as high surface area, high porosity, suitable mechanical properties, nontoxicity, biocompatibility, biodegradability, biorenewable, low immunogenicity, better clinical functionality, analogue to extracellular model, and easy production in large scale. Therefore, this bio-polymer is a very suitable case to deliver of the anti-cancer drugs to treat cancer patents. In this review summarizes the electrospinning synthesis of chitosan and its therapeutic application for the various cancer treatment.
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Benke PI, Burla B, Ekroos K, Wenk MR, Torta F. Impact of ion suppression by sample cap liners in lipidomics. Anal Chim Acta 2020; 1137:136-142. [PMID: 33153597 DOI: 10.1016/j.aca.2020.09.055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 09/14/2020] [Accepted: 09/25/2020] [Indexed: 11/16/2022]
Abstract
Contamination from the polymeric material released by vial caps used for sample introduction in liquid chromatography can significantly affect the signal of the analyte of interest. In particular, repeated injections from the same sample vial can enhance this suppressing effect. Multiple injections of the same sample are often used in metabolomics and lipidomics during routine analyses. Here we demonstrate how the presence of contaminant polymers, originating from the vial closures, significantly influences the estimation of the relative amount of endogenous lipids in human plasma. Furthermore, this can negatively impact other operations in mass spectrometric analysis, such as instrument equilibration and tuning or the common use of technical replicates to improve confidence in data interpretation. Our observations provide critical information on how to improve future analyses through the use of appropriate vial caps, solvents, chromatographic separations and equipment.
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Affiliation(s)
- Peter I Benke
- Singapore Lipidomics Incubator, Department of Biochemistry, Life Sciences Institute and Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Bo Burla
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore
| | - Kim Ekroos
- Lipidomics Consulting Ltd, Irisviksvägen 31D, 02230, Esbo, Finland
| | - Markus R Wenk
- Singapore Lipidomics Incubator, Department of Biochemistry, Life Sciences Institute and Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Federico Torta
- Singapore Lipidomics Incubator, Department of Biochemistry, Life Sciences Institute and Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
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Jalili V, Barkhordari A, Ghiasvand A. Solid-phase microextraction technique for sampling and preconcentration of polycyclic aromatic hydrocarbons: A review. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104967] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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