Ultrafast dynamics of hard tissue ablation using femtosecond-lasers

Journal of Biophotonics
Matthias DomkeRonald Sroka

Abstract

Several studies on hard tissue laser ablation demonstrated that ultrafast lasers enable precise material removal without thermal side effects. Although the principle ablation mechanisms have been thoroughly investigated, there are still open questions regarding the influence of material properties on transient dynamics. In this investigation, we applied pump-probe microscopy to record ablation dynamics of biomaterials with different tensile strengths (dentin, chicken bone, gallstone and kidney stones) at delay times between 1 picosecond and 10 microseconds. Transient reflectivity changes, pressure and shock wave velocities and elastic constants were determined. The result revealed that absorption and excitation show the typical well-known transient behavior of dielectric materials. We observed for all samples a photomechanical laser ablation process, where ultrafast expansion of the excited volume generates pressure waves leading to fragmentation around the excited region. In addition, we identified tensile-strength-related differences in the size of ablated craters and ejected particles. The elastic constants derived were in agreement with literature values. In conclusion, pressure-wave-assisted material removal seems to be a ...Continue Reading

References

Jan 1, 1988·Journal of Biomechanics·R B Ashman, J Y Rho
Aug 1, 1970·Archives of Oral Biology·R S GilmoreJ L Katz
Mar 20, 1995·Physical Review Letters·B C StuartM D Perry
Aug 23, 2001·Journal of Biomedical Optics·B M KimL B Da Silva
Jul 1, 1990·Proceedings of the National Academy of Sciences of the United States of America·W HolzapfelW Zinth
Jan 22, 2002·Journal of Clinical Laser Medicine & Surgery·R F LizarelliV S Bagnato
Feb 21, 2002·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·C S Jørgensen, T Kundu
Mar 14, 2002·Lasers in Surgery and Medicine·William B ArmstrongBrent C Stuart
Feb 13, 2003·Chemical Reviews·Alfred Vogel, Vasan Venugopalan
Jul 26, 2003·The Journal of the Acoustical Society of America·D W Blodgett
Mar 5, 2004·Journal of Biomechanics·J H KinneyJ D Maynard
Dec 25, 2007·Journal of Morphology·Michael Locke
Jan 1, 1986·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·J A CooperS B Palmer
May 2, 2009·Journal of Biomedical Optics·Ryan G McCaugheyBrian J F Wong
Jul 17, 2009·Journal of Biophotonics·Samuel H Chung, Eric Mazur
Nov 3, 2009·Journal of the Mechanical Behavior of Biomedical Materials·W N SimmonsGlenn Preminger
May 13, 2010·Journal of Biomedical Optics·Jinze QiuThomas E Milner
Apr 27, 2012·Optics Express·Matthias DomkeHeinz P Huber
Aug 12, 2015·Journal of Biophotonics·Ruby K GillSebastian Wachsmann-Hogiu
Aug 11, 2016·Journal of Biophotonics·Luke A HardyNathaniel M Fried
May 26, 2017·Journal of Biophotonics·Rebeca Ferraz de MenezesSebastian Wachsmann-Hogiu

❮ Previous
Next ❯

Citations

Dec 19, 2020·Journal of the Mechanical Behavior of Biomedical Materials·Sarathkumar LoganathanMuthukumaraswamy Arunachalam

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.