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Garg R, Maurya A, Mani NK, Prasad D. Thread-powered cell lysis and isotachophoresis: unlocking microbial DNA for diverse molecular applications. World J Microbiol Biotechnol 2024; 40:97. [PMID: 38349426 DOI: 10.1007/s11274-024-03906-2] [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: 10/07/2023] [Accepted: 01/22/2024] [Indexed: 02/15/2024]
Abstract
Central to the domain of molecular biology resides the foundational process of DNA extraction and purification, a cornerstone underpinning a myriad of pivotal applications. In this research, we introduce a DNA extraction and purification technique leveraging polypropylene (PP) threads. The process commences with robust cell lysis achieved through the vigorous agitation of interwoven PP threads. The friction between the threads facilitates cell lysis especially those microbes having tough cell wall. For purification of DNA, thread-based isotachophoresis was employed which makes the whole process swift and cost-effective. Lysed cell-laden threads were submerged in a trailing electrolyte which separated DNA from other cellular contents. The process was performed with a tailored ITP device. An electric field directs DNA, cell debris, trailing electrolyte, and leading electrolyte toward the anode. Distinct ion migration resulted in DNA concentrating on the PP thread's anode-proximal region. The SYBR green dye is used to visualize DNA as a prominent green zone under blue light. The purified DNA exhibits high purity levels of 1.82 ± 0.1 (A260/A280), making it suitable for various applications aiming at nucleic acid detection.
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Affiliation(s)
- Rishabh Garg
- Department of Bioengineering and Biotechnology, Birla Institute of Technology, Mesra, Jharkhand, 835215, India
| | - Aharnish Maurya
- Department of Bioengineering and Biotechnology, Birla Institute of Technology, Mesra, Jharkhand, 835215, India
| | - Naresh Kumar Mani
- Microfluidics, Sensors and Diagnostics (μSenD) Laboratory, Department of Biotechnology, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Dinesh Prasad
- Department of Bioengineering and Biotechnology, Birla Institute of Technology, Mesra, Jharkhand, 835215, India.
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Khalid GM, Billa N. Drug-Eluting Sutures by Hot-Melt Extrusion: Current Trends and Future Potentials. MATERIALS (BASEL, SWITZERLAND) 2023; 16:7245. [PMID: 38005174 PMCID: PMC10672932 DOI: 10.3390/ma16227245] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 11/06/2023] [Accepted: 11/16/2023] [Indexed: 11/26/2023]
Abstract
Surgical site infections (SSIs) may result from surgical procedures requiring a secondary administration of drugs at site or systemically in treating the infection. Drug-eluting sutures containing antimicrobial agents symbolise a latent strategy that precludes a secondary drug administration. It also offers the possibility of delivering a myriad of therapeutic agents to a localised wound site to effect analgesia, anti-inflammation, or the deployment of proteins useful for wound healing. Further, the use of biodegradable drug-eluting sutures eliminates the need for implanting foreign material into the wound, which needs to be removed after healing. In this review, we expound on recent trends in the manufacture of drug-eluting sutures with a focus on the hot-melt extrusion (HME) technique. HME provides a solvent-free, continuous one-step manufacturing conduit for drug-eluting sutures, hence, there is no drying step, which can be detrimental to the drug or suture threads and, thus, environmentally friendly. There is the possibility of combining the technology with additive manufacturing platforms to generate personalised drug-loaded implantable devices through prototyping and scalability. The review also highlights key material requirements for fabricating drug-eluting sutures by HME, as well as quality attributes. Finally, a preview of emerging drug-eluting sutures and advocacy for harmonisation of quality assurance by regulatory authorities that permits quality evaluation of novelty sutures is presented.
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Affiliation(s)
- Garba M. Khalid
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK;
- FabRx Ltd., Henwood House, Henwood, Asford TN24 8DH, UK
| | - Nashiru Billa
- Pharmaceutical Sciences Department, College of Pharmacy, QU Health, Qatar University, Doha P.O. Box 2713, Qatar
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de la Harpe KM, Kondiah PPD, Marimuthu T, Choonara YE. Advances in carbohydrate-based polymers for the design of suture materials: A review. Carbohydr Polym 2021; 261:117860. [PMID: 33766349 DOI: 10.1016/j.carbpol.2021.117860] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/12/2021] [Accepted: 02/22/2021] [Indexed: 12/25/2022]
Abstract
Suture materials constitute one of the largest biomedical material groups with a huge global market of $ 1.3 billion annually and employment in over 12 million procedures per year. Suture materials have radically evolved over the years, from basic strips of linen to more advanced synthetic polymer sutures. Yet, the journey to the ideal suture material is far from over and we now stand on the brink of a new era of improved suture materials with greater safety and efficacy. This next step in the evolutionary timeline of suture materials, involves the use of natural, carbohydrate polymers that have, until recent years, never before been considered for suture material applications. This review exposes the latest and most important advancements in suture material development while digging deep into how natural, carbohydrate polymers can serve to advance this field.
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Affiliation(s)
- Kara M de la Harpe
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Science, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Pierre P D Kondiah
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Science, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Thashree Marimuthu
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Science, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Yahya E Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Science, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa.
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Zhang G, Zeng X, Su Y, Borras FX, de Rooij MB, Ren T, van der Heide E. Influence of suture size on the frictional performance of surgical suture evaluated by a penetration friction measurement approach. J Mech Behav Biomed Mater 2018; 80:171-179. [PMID: 29427933 DOI: 10.1016/j.jmbbm.2018.02.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 01/20/2018] [Accepted: 02/02/2018] [Indexed: 11/29/2022]
Abstract
The frictional performances of surgical sutures have been found to play a vital role in their functionality. The purpose of this paper is to understand the frictional performance of multifilament surgical sutures interacting with skin substitute, by means of a penetration friction apparatus (PFA). The influence of the size of the surgical suture was investigated. The relationship between the friction force and normal force was considered, in order to evaluate the friction performance of a surgical suture penetrating a skin substitute. The friction force was measured by PFA. The normal force applied to the surgical suture was estimated based on a Hertzian contact model, a finite element model (FEM), and a uniaxial deformation model (UDM). The results indicated that the penetration friction force increased as the size of the multifilament surgical suture increased. In addition, when the normal force was predicted by UDM, it was found that the ratio between the friction force and normal force decreased as the normal force increased. A comparison of the results suggested that the UDM was appropriate in predicting the frictional behavior of surgical suturing.
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Affiliation(s)
- Gangqiang Zhang
- Shanghai Jiao Tong University, School of Chemistry and Chemical Engineering, Key Laboratory for Thin Film and Microfabrication of the Ministry of Education, 200240, Shanghai, China; University of Twente, Laboratory for Surface Technology and Tribology, 7500AE Enschede, The Netherlands
| | - Xiangqiong Zeng
- University of Twente, Laboratory for Surface Technology and Tribology, 7500AE Enschede, The Netherlands; Chinese Academy of Sciences, Shanghai Advanced Research Institute, Lubricating Materials Laboratory, 201210 Shanghai, China
| | - Yibo Su
- Brightlands Materials Center, Urmonderbaan 22 6167 RD Geleen, The Netherlands
| | - F X Borras
- University of Twente, Laboratory for Surface Technology and Tribology, 7500AE Enschede, The Netherlands
| | - Matthijn B de Rooij
- University of Twente, Laboratory for Surface Technology and Tribology, 7500AE Enschede, The Netherlands
| | - Tianhui Ren
- Shanghai Jiao Tong University, School of Chemistry and Chemical Engineering, Key Laboratory for Thin Film and Microfabrication of the Ministry of Education, 200240, Shanghai, China.
| | - Emile van der Heide
- University of Twente, Laboratory for Surface Technology and Tribology, 7500AE Enschede, The Netherlands; TU Delft, Faculty of Civil Engineering and Geosciences, Stevinweg 1, 2628 CN Delft, The Netherlands; Ghent University, Soete Laboratory, Technologiepark Zwijnaarde 903, B-9052 Zwijnaarde, Belgium
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Bekele T, Bhokre AP, Tesfaye A. Tissue reactivity and suture handling characteristics of "jimat" against silk and chromic gut in cat thigh muscle: A comparative study. Vet World 2015; 8:958-69. [PMID: 27047183 PMCID: PMC4774762 DOI: 10.14202/vetworld.2015.958-969] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 07/03/2015] [Accepted: 07/12/2015] [Indexed: 11/16/2022] Open
Abstract
AIM This study was conducted to evaluate and compare the tissue reactivity and suture handling characteristics of chromic gut, silk, and 'jimat' suture materials in cat thigh muscle. MATERIALS AND METHODS This experimental study was conducted from November, 2013 to April, 2014 in Kombolcha Animal Diseases Survey, Research and Diagnostic Laboratory, Kombolcha, Ethiopia. A total of 36 local breed male cats were randomly assigned into chromic gut, silk, and "jimat" groups of 12 cats each as A, B, and C, respectively. The hind leg muscle biceps femoris was incised and sutured with suture materials according to their groups. The muscle samples with its suture were collected at six different days interval i.e. 1, 3, 7, 14, 21, and 28 and processed histopathologically to assess the degree of leukocytic infiltration and fibrous and granulation tissue formation (GTF). In addition, all suture materials were evaluated intraoperatively about their handling characteristics, by rating the precision of knot tying, square knot positioning, and resistance to knot slippage. The statistical analysis was done with two-way ANOVA, Kruskal-Wallis, and Chi-square tests. RESULTS The histopathology showed that "jimat" thread (2.4±1.2) had produced least leukocytic infiltration than chromic gut (4.5±1.9) and silk (4.3±1.5) sutures during the study period. Higher GTF was seen at day 3 (6 [100%]), 7 (6 [100%]) and day 14 (4 [66.7%]) in all sutures, whereas "jimat" showed significantly (p<0.05) higher fibrous tissue formation (10 [83.3%]) than others. Moreover, "jimat" suture had equal suture handling characteristics (p>0.05) with both chromic gut and silk. CONCLUSION The result indicated that a single strand "jimat" thread appears to be the most satisfactory suture material as regards to both tissue reaction and suture handling characteristics for skeletal muscle approximation in cats and provided that studies on its carcinogenic effects should be done.
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Affiliation(s)
- Tilahun Bekele
- School of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Jimma University, P. O. Box 307, Jimma, Ethiopia
| | - A. P. Bhokre
- Department of Veterinary Medicine, College of Veterinary Medicine, Mekelle University, P. O. Box 231, Mekelle, Ethiopia
| | - Abreha Tesfaye
- Department of Veterinary Medicine, College of Veterinary Medicine, Mekelle University, P. O. Box 231, Mekelle, Ethiopia
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Gassner HG. Structural grafts and suture techniques in functional and aesthetic rhinoplasty. GMS CURRENT TOPICS IN OTORHINOLARYNGOLOGY, HEAD AND NECK SURGERY 2011; 9:Doc01. [PMID: 22073105 PMCID: PMC3199824 DOI: 10.3205/cto000065] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Rhinoplasty has undergone important changes. With the advent of the open structure approach, requirements for structural grafting and direct manipulation of the cartilaginous skeleton through suture techniques have increased substantially. The present review analyzes the current literature on frequently referenced structural grafts and suture techniques. Individual techniques are described and their utility is discussed in light of available studies and data.
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Affiliation(s)
- Holger G. Gassner
- Plastische Gesichtschirurgie, Universitätsklinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie, Universität Regensburg, Germany
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Abstract
More than ever, dermatologic surgeons are faced with a multitude of suture and other closure materials when evaluating a surgical wound. Given there is no single material that is ideal for all situations, the physician must decide which material is best suited for that particular closure. This review seeks to summarize the major properties of common suture materials as well as other closure materials including adhesive tapes, glues and staples.
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Affiliation(s)
- Ani L Tajirian
- Dermatology, New Jersey Medical School, Newark, NJ, USA.
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Pillai CKS, Sharma CP. Review Paper: Absorbable Polymeric Surgical Sutures: Chemistry, Production, Properties, Biodegradability, and Performance. J Biomater Appl 2010; 25:291-366. [DOI: 10.1177/0885328210384890] [Citation(s) in RCA: 209] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Among biomaterials used as implants in human body, sutures constitute the largest groups of materials having a huge market exceeding $1.3 billion annually. Sutures are the most widely used materials in wound closure and have been in use for many centuries. With the development of the synthetic absorbable polymer, poly(glycolic acid) (PGA) in the early 1970s, a new chapter has opened on absorbable polymeric sutures that got unprecedented commercial successes. Although several comparative evaluations of suture materials have been published, there were no serious attempts of late on a comprehensive review of production, properties, biodegradability, and performance of suture materials. This review proposes to bring to focus scattered data on chemistry, properties, biodegradability, and performance of absorbable polymeric sutures.
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Affiliation(s)
- Chennakkattu Krishna Sadasivan Pillai
- Division of Biosurface Technology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Poojappura, Thiruvananthapuram 695 012, India
| | - Chandra P. Sharma
- Division of Biosurface Technology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Poojappura, Thiruvananthapuram 695 012, India,
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Hochberg J, Meyer KM, Marion MD. Suture Choice and Other Methods of Skin Closure. Surg Clin North Am 2009; 89:627-41. [DOI: 10.1016/j.suc.2009.03.001] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Saleh F, Palmieri B, Lodi D, Al-Sebeih K. An innovative method to evaluate the suture compliance in sealing the surgical wound lips. Int J Med Sci 2008; 5:354-60. [PMID: 19015745 PMCID: PMC2583338 DOI: 10.7150/ijms.5.354] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2008] [Accepted: 11/07/2008] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND AND AIM The increasing number of surgical procedures performed with local anesthesia, followed by immediate patient discharge from the hospital, emphasizes the need for a tight waterproof suture that is capable of maintaining its tensile strength in the postoperative phase when the wound tumescence, edema due to the anesthetic drug, and surgical trauma disappear. Moreover, the issue of having an accurate surgical wound closure is very relevant in vivo in order to prevent hemorrhage and exogenous microbial infections. This study aimed at designing a new a lab technique that could be used for evaluating the best surgical material. Using such a technique, we compared the wound-lip-sealing properties of three commonly-used suture threads, namely polyurethane, polypropylene, and polyamide. MATERIALS AND METHODS The mechanical properties of same-size suture threads made from polyurethane, polypropylene, and polyamide, were compared in order to define the one that possess the best elastic properties by being able to counteract the tension-relaxation process in the first 12 hours following surgery. The tension holding capacity of the suture materials was measured in both in vivo and in vitro experiments. The surface area of the scar associated with the three different suture threads was measured and compared, and the permeability of the three different suture threads was assessed at 0 minute, 2 minute, 4 minute, 6 minute, and 8 minute- interval. RESULTS Results showed that polyurethane suture threads had significantly (P < 0.05) better tensile strength, elongation endurance before breakage, and better elasticity coefficient as compared to polypropylene and polyamide suture threads. Moreover, polyurethane suture threads were significantly (P < 0.05) more impermeable as compared to the other two suture thread types (polypropylene and polyamide). This impermeability was also associated with a tighter wound-lip-sealing ability, and with significantly (P < 0.05) less scar formation. CONCLUSION Among the main concerns that surgeons, physicians, and patients often have is the development infection, oozing, and scar at the incision site following suturing. This always raises the question about which suture to use to avoid the above problems. This study provides evidence that the new technique developed in our lab could be used to compare the wound-lip sealing properties of different surgical suture threads. Using such a technique, the results show that polyurethane is significantly better than other commonly-used suture threads, like polypropylene and polyamide, in relation to wound sealing and scar formation.
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Affiliation(s)
- Farid Saleh
- Department of Anatomy, Faculty of Medicine, Health Science Centre, Kuwait University, Kuwait.
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