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Emami S, Ebrahimi M. Bioactive wound powders as wound healing dressings and drug delivery systems. POWDER TECHNOL 2023. [DOI: 10.1016/j.powtec.2023.118501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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Pandit A, Indurkar A, Deshpande C, Jain R, Dandekar P. A systematic review of physical techniques for chitosan degradation. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2021. [DOI: 10.1016/j.carpta.2021.100033] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Bhatt N, Brier-Jones J, Trosan D, Brinkley C, Pecoraro J, Smallwood J, Crofton A, Hudson S, Kirsch W, Stapelmann K, Shannon S. Depyrogenation using Plasmas: A Novel Approach for Endotoxin Deactivation Using a Dielectric Barrier Discharge at Atmospheric Pressure. PLASMA PROCESSES AND POLYMERS (PRINT) 2021; 18:2100089. [PMID: 34899113 PMCID: PMC8654132 DOI: 10.1002/ppap.202100089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 08/28/2021] [Indexed: 06/14/2023]
Abstract
Developing a low-cost depyrogenation process is vital in extending medical applicability of polymers that can be used in medicine. We present an overview of the plasma-based depyrogenation literature and address the need to develop a non-thermal plasma-based depyrogenation process for delicate materials such as chitosan. We present a low-cost plasma apparatus to treat chitosan powder in hermetically sealed bags. We decouple the experiments into two; depyrogenation experiments for dried standard endotoxin on glass slides, and chitosan modifications analysis through FTIR spectroscopy. We demonstrate depyrogenation efficacy with up to a 4-log reduction in endotoxin levels and discuss minor changes observed in plasma-treated chitosan.
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Affiliation(s)
- Naman Bhatt
- Department of Nuclear Engineering, North Carolina State University, North Carolina, USA
| | | | - Duncan Trosan
- Department of Nuclear Engineering, North Carolina State University, North Carolina, USA
| | - Cade Brinkley
- Department of Nuclear Engineering, North Carolina State University, North Carolina, USA
| | - Joshua Pecoraro
- Department of Nuclear Engineering, North Carolina State University, North Carolina, USA
| | - Jann Smallwood
- Neurosurgery Center for Research, Training, and Education, School of Medicine, Loma Linda University, California, USA
| | - Andrew Crofton
- Karamedica, Inc., North Carolina, USA
- Department of Anatomy, School of Medicine, Case Western Reserve University, Ohio, USA
| | - Samuel Hudson
- Karamedica, Inc., North Carolina, USA
- Wilson College of Textiles, North Carolina State University, North Carolina, USA
| | - Wolff Kirsch
- Karamedica, Inc., North Carolina, USA
- Neurosurgery Center for Research, Training, and Education, School of Medicine, Loma Linda University, California, USA
- Division of Biochemistry, School of Medicine, Loma Linda University, California, USA
| | - Katharina Stapelmann
- Department of Nuclear Engineering, North Carolina State University, North Carolina, USA
| | - Steven Shannon
- Department of Nuclear Engineering, North Carolina State University, North Carolina, USA
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Massima Mouele ES, Tijani JO, Badmus KO, Pereao O, Babajide O, Zhang C, Shao T, Sosnin E, Tarasenko V, Fatoba OO, Laatikainen K, Petrik LF. Removal of Pharmaceutical Residues from Water and Wastewater Using Dielectric Barrier Discharge Methods-A Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:1683. [PMID: 33578670 PMCID: PMC7916394 DOI: 10.3390/ijerph18041683] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 12/31/2020] [Accepted: 01/12/2021] [Indexed: 12/19/2022]
Abstract
Persistent pharmaceutical pollutants (PPPs) have been identified as potential endocrine disruptors that mimic growth hormones when consumed at nanogram per litre to microgram per litre concentrations. Their occurrence in potable water remains a great threat to human health. Different conventional technologies developed for their removal from wastewater have failed to achieve complete mineralisation. Advanced oxidation technologies such as dielectric barrier discharges (DBDs) based on free radical mechanisms have been identified to completely decompose PPPs. Due to the existence of pharmaceuticals as mixtures in wastewater and the recalcitrance of their degradation intermediate by-products, no single advanced oxidation technology has been able to eliminate pharmaceutical xenobiotics. This review paper provides an update on the sources, occurrence, and types of pharmaceuticals in wastewater by emphasising different DBD configurations previously and currently utilised for pharmaceuticals degradation under different experimental conditions. The performance of the DBD geometries was evaluated considering various factors including treatment time, initial concentration, half-life time, degradation efficiency and the energy yield (G50) required to degrade half of the pollutant concentration. The review showed that the efficacy of the DBD systems on the removal of pharmaceutical compounds depends not only on these parameters but also on the nature/type of the pollutant.
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Affiliation(s)
- Emile S. Massima Mouele
- Environmental Nano Science Research Group, Department of Chemistry, University of the Western Cape, Bellville, Cape Town 7535, South Africa; (J.O.T.); (K.O.B.); (O.P.); (O.B.); (O.O.F.)
- Department of Separation Science, Lappeenranta-Lahti University of Technology LUT, P.O. Box 20, FI-53851 Lappeenranta, Finland;
| | - Jimoh O. Tijani
- Environmental Nano Science Research Group, Department of Chemistry, University of the Western Cape, Bellville, Cape Town 7535, South Africa; (J.O.T.); (K.O.B.); (O.P.); (O.B.); (O.O.F.)
- Department of Chemistry, Federal University of Technology, PMB 65, P.O. Box 920 Minna, Niger State 920001, Nigeria
| | - Kassim O. Badmus
- Environmental Nano Science Research Group, Department of Chemistry, University of the Western Cape, Bellville, Cape Town 7535, South Africa; (J.O.T.); (K.O.B.); (O.P.); (O.B.); (O.O.F.)
| | - Omoniyi Pereao
- Environmental Nano Science Research Group, Department of Chemistry, University of the Western Cape, Bellville, Cape Town 7535, South Africa; (J.O.T.); (K.O.B.); (O.P.); (O.B.); (O.O.F.)
| | - Omotola Babajide
- Environmental Nano Science Research Group, Department of Chemistry, University of the Western Cape, Bellville, Cape Town 7535, South Africa; (J.O.T.); (K.O.B.); (O.P.); (O.B.); (O.O.F.)
- Department of Mechanical Engineering, Cape Peninsula University of Technology, P.O. Box 1906, Bellville 7535, South Africa
| | - Cheng Zhang
- Beijing International S&T Cooperation Base for Plasma Science, Energy Conversion, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China; (C.Z.); (T.S.)
| | - Tao Shao
- Beijing International S&T Cooperation Base for Plasma Science, Energy Conversion, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China; (C.Z.); (T.S.)
| | - Eduard Sosnin
- Institute of High Current Electronics, Russian Academy of Sciences, 634055 Tomsk, Russia; (E.S.); (V.T.)
| | - Victor Tarasenko
- Institute of High Current Electronics, Russian Academy of Sciences, 634055 Tomsk, Russia; (E.S.); (V.T.)
| | - Ojo O. Fatoba
- Environmental Nano Science Research Group, Department of Chemistry, University of the Western Cape, Bellville, Cape Town 7535, South Africa; (J.O.T.); (K.O.B.); (O.P.); (O.B.); (O.O.F.)
| | - Katri Laatikainen
- Department of Separation Science, Lappeenranta-Lahti University of Technology LUT, P.O. Box 20, FI-53851 Lappeenranta, Finland;
| | - Leslie F. Petrik
- Environmental Nano Science Research Group, Department of Chemistry, University of the Western Cape, Bellville, Cape Town 7535, South Africa; (J.O.T.); (K.O.B.); (O.P.); (O.B.); (O.O.F.)
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Baek J, Wahid-Pedro F, Kim K, Kim K, Tam KC. Phosphorylated-CNC/modified-chitosan nanocomplexes for the stabilization of Pickering emulsions. Carbohydr Polym 2019; 206:520-527. [DOI: 10.1016/j.carbpol.2018.11.006] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 10/24/2018] [Accepted: 11/06/2018] [Indexed: 12/11/2022]
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