Metode modifikacije površine implantnih materijala na bazi titanija

undergraduate thesis

• Title (english): Surface modification methods for titanium-based implant materials
• Author: Janina Roknić
• Mentor: Jozefina Katić (mentor)
• Committee member: Marijana Kraljić Roković (predsjednik povjerenstva)
• Committee member: Sanja Martinez (član povjerenstva)
• Committee member: Emi Govorčin Bajsić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2021-09-16, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering

Abstract

Implantni materijali se u obliku medicinskih implantata ugrađuju u ljudski organizam i upotpunjuju ili u potpunosti zamjenjuju tkivo, organ ili neku funkciju tijela, tj. zamjenjuju uništenu biološku strukturu nadomještajući njenu formu i funkciju. Važni uvjeti za izradu kvalitetnog implantnog materijala, kako bi organizmu služili u što duljem periodu, koji moraju biti zadovoljeni su dobra mehanička svojstva, biokompatibilnost, otpornost na habanje i koroziju te oseointegracija. Materijali za izradu implantata prema podrijetlu dijele se na: polimere, metale, kompozitne materijale i keramiku, pri čemu svaki od njih ima svojstvene prednosti i nedostatke. U ovom je radu naglasak na metalima, konkretnije na titaniju i njegovim legurama od kojih se izrađuju implantni materijali. Titanij je poznat po površinski zaštitnom sloju, koji se formira spontano i koji pruža dobar otpor koroziji, izrazito je biokompatibilan, a razina toksičnosti mu je niska. Ipak, svaki materijal, pa tako i titanij i njegove legure, ima neka ograničenja u primjeni zbog kojih se javlja potreba za površinskom modifikacijom. Posljednja se dva poglavlja rada bave površinskom modifikacijom i metodama modifikacije: fizikalnim, kemijskim, mehaničkim i metodama modifikacije laserom, koja se razlikuje od ostalih jer je beskontaktna, bez medija i kontaminacije.

Abstract (english)

Implant materials in the form of medical implants are incorporated into the human body and complement or completely replace tissue, organ or some function of the body, i.e., they replace the destroyed biological structure by replacing its form and function. Main conditions, important for production of quality long-term implant, that are prerequisite are favorable mechanical properties, biocompatibility, resistance to wear and corrosion and osseointegration. Implant materials used can be divided based on materials origin refer to polymers, metals, composite materials and ceramics, each of which has its own advantages and disadvantages. In this work, the emphasis is on metals, more specifically on titanium and its alloys from which implant materials are made. Titanium is known for its surface protective layer, spontaneously formed, which provides good corrosion resistance, is highly biocompatible, and its toxicity level is low. However, every material, including titanium and its alloys, has some limitations in application due to which there is a need for surface modification. The last two chapters of this work focus on surface modification and surface modification methods: physical, chemical, mechanical and laser modification method, which differs from the others in that it is non-contact, media free and contamination free.

• Keywords: metali; titanij; legure; implantni materijali; površinska modifikacija; nitinol; kalcij-fosfatne (CaP) prevlake; biokompatibilnost; oseointegracija; korozija; habanje
• Keywords (english): metals; titanium; alloys; implant materials; surface modification; nitinol; calcium-phosphate (CaP) coatings; biocompatibility; osseointegration; corrosion; wear
• Language: croatian
• URN:NBN: urn:nbn:hr:149:749035
• Study programme: Title: Materials Science and Engineering - Undergraduate study; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-04-17 11:30:46