Journals / Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi / 2022 / Cilt: 22 - Sayı: 1

Mechanical and Tribological Analysis of Polyacrylamide/Alginate Hybrid Hydrogels for Potential Cartilage Treatment

Potansiyel Kıkırdak Tedavisi için Poliakrilamid/Aljinat Hibrit Hidrojellerin Mekanik ve Tribolojik Analizi

Pages
252–261
Publication Date
2022-10-12
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The results showed that a higher polymer concentration or a double-network type of structure led to improved friction (lower friction co-efficient) and wear (lower wear track area) properties.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, polyacrylamide/alginate (PAAm/Alg) based hydrogels have been synthesized and investigated.
📊
Key Findings & Data:The four different hydrogels produced contained different concentrations of single- or double- network polymer: 15 wt.% single-network (SN-15), 30 wt.% single-network (SN-30), 15 wt.% double-network (DN-15), and 30 wt.% double-network (DN-30).
💡
Conclusion & Impact:The results showed that a higher polymer concentration or a double-network type of structure led to improved friction (lower friction co-efficient) and wear (lower wear track area) properties.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study, polyacrylamide/alginate (PAAm/Alg) based hydrogels have been synthesized and investigated. The four different hydrogels produced contained different concentrations of single- or double- network polymer: 15 wt.% single-network (SN-15), 30 wt.% single-network (SN-30), 15 wt.% double-network (DN-15), and 30 wt.% double-network (DN-30). The tribological performance of these synthesized hydrogels was investigated by using a custom pin-on-disc tribometer in phosphate buffered saline (PBS), where samples were reciprocated against a CoCrMo femoral head under an applied load of 5 or 10 N, at an average sliding speed of 20 mms-1, and body temperature (37±1 °C). The compressive tangent modulus was also determined by compressing samples at a strain rate of 1 min-1, while submerged in PBS, at both ambient and body temperatures. The results showed that a higher polymer concentration or a double-network type of structure led to improved friction (lower friction co-efficient) and wear (lower wear track area) properties. Samples also performed better when a lower applied load used. Sample DN-30 exhibited the highest compressive modulus. These outcomes have contributed to the understanding of the mechanical and tribological performance of PAAm/Alg blend hydrogels when performing under certain physiological conditions.

Özet

Bu çalışmada sentezlenen poliakrilamid/aljinat (PAAm/Alg) bazlı hidrojellerin mekanik ve tribolojik özellikleri incelenmiştir. Üretilen dört farklı hidrojel farklı konsantrasyonlarda tek veya çift ağ yapılı polimerlerden oluşmaktadır: ağırlıkça %15 tek ağ yapılı (SN-15), %30 tek ağ yapılı (SN-30), %15 çift ağ yapılı (DN-15) ve %30 çift ağ yapılı (DN-30). Sentezlenmiş hidrojellerin tribolojik performansı, özel olarak tasarlanmış pin-on-disk tribometre ile, 37±1 °C sıcaklıkta fosfat tamponlu salin (PBS) içerisinde, ortalama kayma hızı 20 mms-1 olan CoCrMo femur kafasının altında 5 veya 10 N’luk yükler uygulanıp lineer git-gel hareketi ile incelenmiştir. Hidrojellerin sıkıştırma tanjant modülü, PBS’ye daldırılmış numunelerin hem ortam hem de vücut sıcaklarında 1 dak-1 gerinim hızında sıkıştırılmasıyla belirlenmiştir. Test sonuçları daha yüksek polimer konsantrasyonu veya çift ağ tipi bir yapıya sahip olmanın hidrojellerin gelişmiş sürtünme (düşük sürtünme katsayısı) ve aşınma (düşük aşınma izi alanı) özelliklerine sahip olmasına yol açtığını göstermiştir. Hidrojellerin daha düşük yük altında daha iyi performans gösterdiği gözlemlenmiştir. DN-30 olarak kodlanan numune en yüksek sıkıştırma modülü davranışını sergilemiştir. Bu sonuçlar, fizyolojik koşullar altında PAAm/Alg karışımı hidrojellerin mekanik ve tribolojik performansının anlaşılmasına katkıda bulunmuştur.

🔖

Cite This Article

AVCIOĞLU, E., Kanca, Y., HOPKİNS, L., BİLGE, E. (2022). Mechanical and Tribological Analysis of Polyacrylamide/Alginate Hybrid Hydrogels for Potential Cartilage Treatment. Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, Cilt: 22 - Sayı: 1, 252–261. https://ajindex.com/articles/429578

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (10)

  1. Al-sabah, A., Burnell, S. E. A., Simoes, I. N., Jessop, Z., Blain, E., & Whitaker, I. S. (2019). Structural and mechanical characterization of crosslinked and sterilised nanocellulose-based hydrogels for cartilage tissue engineering. Carbohydrate Polymers, 212, 242–251.
  2. Aswathy, S. H., Narendrakumar, U., & Manjubala, I. (2020). Commercial hydrogels for biomedical applications. Heliyon, 6(4), e03719. Basu, P., Kumar, U. N., & Manjubala, I. (2017). Wound healing materials – a perspective for skin tissue engineering. Current Science, 112(12), 2392-2404.
  3. Beddoes, C. M., Whitehouse, M. R., Briscoe, W. H., & Su, B. (2016). Hydrogels as a replacement material for damaged articular hyaline cartilage. Materials, 9(6), 443. Bialik-Was, K., Królicka, E., & Malina, D. (2021). Impact of the type of crosslinking agents on the properties of modified sodium alginate/poly(vinyl alcohol) hydrogels. Molecules, 26(8), 2381. Carnt, N., Wu, Y., & Stapleton, F. (2010). Contact Lenses. Encyclopedia of the Eye, 377–382.
  4. Chaudhuri, O., Cooper-White, J., Janmey, P. A., Mooney, D. J., & Shenoy, V. B. (2020). Effects of extracellular matrix viscoelasticity on cellular behaviour. Nature, 584(7822), 535-546.
  5. Craciun, A. M., Tartau, L. M., Pinteala, M., & Marin, L. (2018). Nitrosalicyl-imine-chitosan hydrogels based drug delivery systems for long term sustained release in local therapy. Journal of Colloid And Interface Science, 536, 196-207.
  6. Darnell, M. C., Sun, J. Y., Mehta, M., Johnson, C., Arany, P. R., Suo, Z., & Mooney, D. J. (2013). Performance and biocompatibility of extremely tough alginate/polyacrylamide hydrogels. Biomaterials, 34(33), 8042-8048.
  7. Dashtdar, H., Raman, M., Azlina, M., & Abbas, A. (2013). PVA-chitosan composite hydrogel versus alginate beads as a potential mesenchymal stem cell carrier for the treatment of focal cartilage defects. Knee Surgery, Sports Traumatology, Arthroscopy, 23(5), 1368-1377.
  8. Davis, S., Roldo, M., Blunn, G., Tozzi, G., & Roncada, T. (2021). Influence of the mechanical environment on the regeneration of osteochondral defects. Frontiers in Bioengineering and Biotechnology, 10. Dragan, E. S. (2014). Design and applications of interpenetrating polymer network hydrogels. A review. Chemical Engineering Journal, 243, 572–590.
  9. Duarte Campos, D. F., Drescher, W., Rath, B., Tingart, M., & Fischer, H. (2012). Supporting biomaterials for articular cartilage repair. Cartilage, 3(3), 205–221.
  10. Goldring, M. B., & Goldring, S. R. (2007). Osteoarthritis. Journa