Article
Polymer Science
Emma Birleanu, Ilarion Mihaila, Ionut Topala, Catalin Borcia, Gabriela Borcia
Summary: This study investigates the effects of atmospheric-pressure plasma (APP) treatment on non-polar polymers and finds that short treatment times can significantly change the surface properties of the polymers, which remain stable after treatment.
Article
Polymer Science
Pornchai Rachtanapun, Dheerawan Boonyawan, Rafael A. Auras, Gopinath Kasi
Summary: The use of SF6 plasma treatment improves the water resistance of Kraft paper. The optimal treatment conditions are 200 mTorr pressure, 50 Watts power, and 5 minutes treatment time. Increasing the treatment time enhances the contact angle, water absorption time, and Cobb test values of the paper, while the thickness and tensile strength remain relatively constant.
Article
Dentistry, Oral Surgery & Medicine
Sandro Basso Bitencourt, Daniela Micheline dos Santos, Natalia Almeida Bastos-Bitencourt, Elidiane Cipriano Rangel, Nilson Cristino da Cruz, Estevam Augusto Bonfante, Grace Mendonca De Souza, Aldieris Alves Pesqueira
Summary: This study characterized the surface of zirconia treated with different methods and evaluated the shear bond strength between veneering ceramic and zirconia after different aging processes. The results showed that plasma treatment improved the shear bond strength without causing phase transformation.
Article
Multidisciplinary Sciences
Suriyakul Wongsue, Ornnicha Thanatvarakorn, Taweesak Prasansuttiporn, Piyarat Nimmanpipug, Thanapat Sastraruji, Keiichi Hosaka, Richard M. Foxton, Masatoshi Nakajima
Summary: This study investigated the effect of zirconia surface topography and its wettability after surface pretreatments on the microshear bond strength of a resin cement. The results showed that nanoscale surface irregularity was the most significant factor, while surface roughness and wettability also had an impact on the bond strength.
SCIENTIFIC REPORTS
(2023)
Article
Materials Science, Textiles
Pragati Bajpai, Amit Kumar, Alok Kumar, Prabhat K. K. Dwivedi
Summary: In this study, suitable surface treatments were investigated to enhance the adhesion of ultra-high molecular weight polyethylene (UHMWPE) prepegs with dissimilar materials by reducing the contact angle. Plasma treatment and acid treatment were studied separately as well as their synergistic effect. The effectiveness of this study was validated by measuring the contact angle and adhesive shear strength of the treated composites. SEM and XPS were also used to examine the morphology of the interface. It was observed that plasma-treated samples exhibited increased wettability and significantly reduced contact angle, which was confirmed by the shear strength results. The synergistic effect did not yield better results than either of the solitary treatments.
FIBERS AND POLYMERS
(2023)
Article
Materials Science, Coatings & Films
Wisanu Boonrawd, Kamal R. Awad, Venu Varanasi, Efstathios Meletis
Summary: Electrolytic plasma processing (EPP) can create superhydrophilic surface profiles on titanium, enhancing cell adhesion and growth to potentially improve bone implant bonding.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Matti J. Hokkanen, Matilda Backholm, Maja Vuckovac, Quan Zhou, Robin H. A. Ras
Summary: Superhydrophobic coatings with unique properties such as self-cleaning and staying dry have recently emerged in industrial and consumer markets. The stochastic nature of coating components can affect the uniformity of water repellency, and traditional contact angle goniometry may not provide accurate quantification of wetting properties. The study demonstrates that highly sensitive force-based methods can offer advantages in quantifying microscale heterogeneity in superhydrophobic coatings.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Ludmila Hodasova, Robert Quintana, Urszula Czuba, Luis J. del Valle, Gemma Fargas, Carlos Aleman, Elaine Armelin
Summary: Polydopamine-ethylene glycol dimethacrylate copolymer is a biocompatible coating with cell adhesion promotion and antibiofilm properties, successfully applied to metallic implants like stainless steel and titanium. In this study, the copolymer was deposited onto ultra-smooth surfaces of yttria-stabilized zirconia discs using liquid-assisted atmospheric-pressure plasma-induced polymerization (LA-APPiP). The new copolymer film on zirconia showed improved cell growth and adherence without the need for solvents or purification steps.
Article
Engineering, Biomedical
Michael G. Skilbeck, Richard D. Cannon, Mauro Farella, Li Mei
Summary: The aim of this study was to reduce bacterial adhesion on orthodontic elastomers by creating a superhydrophobic surface through surface modification. Different sandpapers were used to modify the surface roughness of the elastomers. The roughness of the elastomers influenced their hydrophobicity and bacterial adhesion.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Energy & Fuels
Jiale Huang, Qiang Zhou, Lingling Yuan, Zhiliang Xue, Tao Jin
Summary: Spray cooling has a wide range of applications in the heat dissipation of high-power devices. The study found that surface roughness does not significantly affect the heat transfer coefficient in the non-boiling zone, while superhydrophilic/hydrophobic surfaces have lower heat transfer coefficients compared to smooth surfaces.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Anh Phan, Hannah M. Stoner, Michail Stamatakis, Carolyn A. Koh, Alberto Striolo
Summary: This article discusses the importance of wetting properties in the formation, growth, and agglomeration of clathrate hydrates, and proposes that changes in surface morphology are responsible for the variation in reported contact angles. Due to experimental limitations, the authors employ molecular dynamics simulations to validate their hypothesis and achieve agreement with experimental observations. The author's research helps interpret adhesion force measurements and provides a microscopic tool for understanding the agglomeration of hydrate particles.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Duygu Karakis, Canan Akay, Suat Pat
Summary: This study evaluated the surface energy and shear bond strength of zirconia after different argon plasma irradiation times, finding that 20 minutes of laser irradiation resulted in the highest shear bond strength values. Additionally, using ceramic primer in combination with argon plasma led to increased shear bond strength in all groups.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2021)
Article
Physics, Fluids & Plasmas
Muhammad Hamza, Asma Hayat, Shazia Bashir, Muhammad Shahid Rafique, Rana Muhammad Ayub, Saira Riaz, Shahzad Naseem, Muhammad Akram Raza, Muhammad Arif Mehmood, Sajid Ali, Syed Muhammad Kamran Shabbir, Muhammad Ammar Afzal
Summary: The thermal plasma setup was designed, fabricated, and successfully established to investigate the effects of thermal plasma treatment on zirconium. Different surface structures, such as microrods, flakes, pores, cracks, dendrites, agglomerates, and ridges, were observed on the treated zirconium. There were no compositional changes in zirconium after the treatment, but slight changes in crystallite size and dislocation line density were observed. The electrical conductivity of zirconium decreased, while the hardness and wettability increased after treatment.
IEEE TRANSACTIONS ON PLASMA SCIENCE
(2023)
Article
Thermodynamics
Pouya Sharbati, Abdolali K. Sadaghiani, Ali Kosar
Summary: This study investigates the influence of contact angle (CA) and contact angle hysteresis (CAH) on humid air condensation and reveals their different roles in different stages of the condensation cycle. The findings show that increasing CAH has a negative effect on condensation heat transfer, while the impact of changing CA varies. Lower CAH values have a greater impact on enhancing condensation heat transfer, and increasing CAH has a more significant effect on hydrophobic surfaces than on hydrophilic surfaces. Additionally, decreasing CAH has a more pronounced effect on improving condensation heat transfer than increasing CA.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Chemistry, Physical
F. J. Montes Ruiz-Cabello, S. Bermudez-Romero, Pablo F. Ibanez-Ibanez, M. A. Cabrerizo-Vilchez, M. A. Rodriguez-Valverde
Summary: The freezing delay on solid surfaces is strongly influenced by the drop contact angle and surface roughness, with differences in freezing delay between conductive and insulating materials. In unsaturated environments, conductive, smooth, and hydrophobic surfaces are found to be the most efficient in delaying freezing.
APPLIED SURFACE SCIENCE
(2021)
Article
Surgery
Jonathan M. Bekisz, Hannah A. Liss, Samantha G. Maliha, Lukasz Witek, Paulo G. Coelho, Roberto L. Flores
AESTHETIC SURGERY JOURNAL
(2019)
Article
Dentistry, Oral Surgery & Medicine
Adolfo Coelho de Oliveira Lopes, Camila Moreira Machado, Leonardo Rigoldi Bonjardim, Edmara Tatiely Pedroso Bergamo, Ilana Santos Ramalho, Lukasz Witek, Paulo Guilherme Coelho, Estevam Augusto Bonfante
JOURNAL OF PROSTHODONTICS-IMPLANT ESTHETIC AND RECONSTRUCTIVE DENTISTRY
(2019)
Article
Cell & Tissue Engineering
Ilana Ramalho, Edmara Bergamo, Adolfo Lopes, Camille Medina-Cintron, Rodrigo Neiva, Lukasz Witek, Paulo Coelho
TISSUE ENGINEERING PART A
(2019)
Article
Dentistry, Oral Surgery & Medicine
Van P. Thompson
Article
Engineering, Biomedical
Lukasz Witek, Han Tian, Nick Tovar, Andrea Torroni, Rodrigo Neiva, Luiz F. Gil, Paulo G. Coelho
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
(2020)
Article
Engineering, Biomedical
Ilana S. Ramalho, Edmara T. P. Bergamo, Lukasz Witek, Paulo G. Coelho, Adolfo C. O. Lopes, Estevam A. Bonfante
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2020)
Article
Surgery
Samantha G. Maliha, Christopher D. Lopez, Paulo G. Coelho, Lukasz Witek, Madison Cox, Alan Meskin, Sejndi Rusi, Andrea Torroni, Bruce N. Cronstein, Roberto L. Flores
PLASTIC AND RECONSTRUCTIVE SURGERY
(2020)
Article
Multidisciplinary Sciences
Maxime M. Wang, Roberto L. Flores, Lukasz Witek, Andrea Torroni, Amel Ibrahim, Zhong Wang, Hannah A. Liss, Bruce N. Cronstein, Christopher D. Lopez, Samantha G. Maliha, Paulo G. Coelho
SCIENTIFIC REPORTS
(2019)
Article
Orthopedics
Andrea Torroni, Paulo Eduardo Lima Parente, Lukasz Witek, Jacques Henri Hacquebord, Paulo G. Coelho
Summary: This study compared R and OD osteotomy instrumentation in posterior lumbar fixation using a sheep model, finding that the OD group showed better mechanical stability, while no significant differences were detected in bone histomorphology analysis.
JOURNAL OF ORTHOPAEDIC RESEARCH
(2021)
Article
Engineering, Biomedical
E. B. Benalcazar Jalkh, E. T. P. Bergamo, K. N. Monteiro, P. F. Cesar, L. A. Genova, A. C. O. Lopes, P. N. Lisboa Filho, P. G. Coelho, C. F. Santos, F. Bortolin, M. M. T. Piza, E. A. Bonfante
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2020)
Article
Dentistry, Oral Surgery & Medicine
Jose Carlos Romanini-Junior, Ronaldo Hirata, Estevam A. Bonfante, Dimorvan Bordin, Rose Yakushijin Kumagai, Vinicius P. Fardin, Paulo G. Coelho, Andre F. Reis
Article
Engineering, Biomedical
Fabio C. Lorenzoni, Estevam A. Bonfante, Guilherme B. Valverde, Paulo G. Coelho, Gerson Bonfante, Van P. Thompson, Nelson R. F. A. Silva
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2020)
Article
Dentistry, Oral Surgery & Medicine
Lukasz Witek, Nick Tovar, Christopher D. Lopez, Jonathan Morcos, Michelle Bowers, Roumiana S. Petrova, Paulo G. Coelho
MEDICINA ORAL PATOLOGIA ORAL Y CIRUGIA BUCAL
(2020)
Meeting Abstract
Medicine, General & Internal
Daniela Oliveira, Sofia Maia, Ines Balaco, Paulo Coelho, Susana Almeida, Margarida Venancio, Jorge Saraiva, Gen Nishimura, Sergio B. Sousa
Article
Medicine, General & Internal
Isabel O. Cruz, Sara Alves Pereira, Bruna Vieira, Ines Chora, Paulo Coelho
CUREUS JOURNAL OF MEDICAL SCIENCE
(2020)
Article
Dentistry, Oral Surgery & Medicine
Chang Zeng, Pei Hu, Colin P. Egan, Brian E. Bergeron, Franklin Tay, Jingzhi Ma
Summary: The study compared the bacteria debridement efficacy of the first and second generations of sonic root canal irrigant activation systems. The results showed that activation of 2% NaOCl with either EndoActivator or SmartLite Pro EndoActivator significantly reduced the overall intracanal bacterial load compared to syringe-side-vented needle delivery. However, delivering 2% NaOCl for 5 minutes using the syringe-side-vented needle produced better bacteria debridement than either sonic agitation system.
JOURNAL OF DENTISTRY
(2024)
Article
Dentistry, Oral Surgery & Medicine
Alaa Husni Qari, Raghad Mohammed Alharbi, Shahd Saud Alomiri, Banan Nasser Alandanusi, Lina Ayman Mirza, Mohammad Hasan Al-Harthy
Summary: The study compares the experience of patients seen using teledentistry with traditional Orofacial Pain and TMD visits. Results indicated a borderline difference in effectively using teledentistry for follow-ups among different age groups, but no significant differences were found in patients' experience between virtual and conventional visits. This suggests that high-quality dental care services can be provided remotely without adversely affecting patient experience or quality of care.
JOURNAL OF DENTISTRY
(2024)
Article
Dentistry, Oral Surgery & Medicine
Giovanna Iezzi, Barbara Zavan, Morena Petrini, Letizia Ferroni, Tania Vanessa Pierfelice, Ugo D'Amora, Alfredo Ronca, Emira D'Amico, Carlo Mangano
Summary: This study characterized the surface topography and evaluated the biological responses of various cells to a novel 3D-printed dental implant. The surface of the implant showed a highly interconnected porous architecture and roughness, leading to good adhesion and growth of human oral osteoblasts, gingival fibroblasts, mesenchymal stem cells, and monocytes. These findings suggest that this 3D-printed implant has excellent potential for clinical applications.
JOURNAL OF DENTISTRY
(2024)