Deleted Journal, Год журнала: 2024, Номер 5(0), С. 1 - 1
Опубликована: Янв. 1, 2024
Язык: Английский
Additive manufacturing, Год журнала: 2024, Номер 86, С. 104189 - 104189
Опубликована: Апрель 1, 2024
Vat photopolymerization (VP) 3D printing, a subset of additive manufacturing, is renowned for its capability to create intricate structures with high precision, particularly useful in optical applications. The process involves using photosensitive resins cured layer by through various light-curing technologies like Stereolithography (SLA), Digital Light Processing (DLP), Two-Photon Polymerization (TPP), Continuous Liquid Interface Production (CLIP), and Crystal Display (LCD). Each technique offers unique advantages terms speed, resolution, material compatibility, TPP providing the highest resolution. This review explores diverse applications VP 3D-printed components, including lenses, waveguides, gratings, resonators, metamaterials, sensors, actuators, demonstrating their significant role advancing technology innovation. Challenges selection, post-processing requirements, size limitations, support are discussed, alongside potential future research directions. These include developing advanced photopolymer materials enhanced properties, hardware improvements higher resolution multi-material quality assurance measures ensuring precision. Despite some printing presents promising avenue rapid prototyping production complex, multifunctional devices, marking stride manufacturing technological development.
Язык: Английский
Процитировано
26
Advanced Engineering Materials, Год журнала: 2024, Номер 26(5)
Опубликована: Янв. 14, 2024
Biogenic gold nanoparticles (BAu NPs) synthesized using olive leaf extract were used as an additive in commercial contact lenses lens). Their antibacterial and color blindness‐correcting properties examined. To compare the properties, nanocomposite also well‐known Turkevich method (TAu The breath‐ in/breath‐out was to load Au NPs onto lenses. bio‐gold showed good dispersion stability within lens hydrogel matrix. Nanoparticle loading had a negligible effect on lenses’ wettability swelling properties. BAu filtered around 55% of visible light at 530 nm, problematic wavelength for blind patients. optical filtering results comparable with Pilestone correction glasses. superior resistance against attack Pseudomonas aeruginosa Staphylococcus aureus bacteria compared Tau As scanning electron microscopy (SEM) imaging showed, complete lack surface attachment toward bacterial colonies. This research provides cost‐effective scalable producing multi‐functional
Язык: Английский
Процитировано
8
Experimental Mechanics, Год журнала: 2025, Номер 65(3), С. 365 - 384
Опубликована: Янв. 16, 2025
Abstract Background A myriad of materials, ranging from soft sensors to bone substitutes, undergo torsional loading throughout their operational lifespan. Many these materials are produced using additive manufacturing (AM) technology due its broad applicability. Understanding the behavior AM components is crucial prior utilization. However, research on solid additively-manufactured resin polymers remains very limited. Objective To address gap in understanding polymers, this study aimed investigate effect varying gage lengths and UV post-curing durations capacity, shear modulus, energy absorption characteristics materials. Methods Torsion specimens were fabricated vat photopolymerization (VPP) with AnyCubic Tough Resin. The prepared different (20, 40, 60, 80 mm) subjected five (0, 15, 30, 90, 120 min). Monotonic torsion was applied until failure at a rate 0.1 revolutions per minute. Results tests revealed ductile patterns across all specimens. Longer times found correlate increased capacities moduli. conclusions regarding unit volume remained inconclusive. results showed that exposure had significantly greater impact mechanical properties compared length. Additionally, normalized trilinear model proposed characterize under monotonic torsion, which facilitates numerical simulation material responses finite element software.
Язык: Английский
Процитировано
0
Journal of Clinical & Translational Ophthalmology, Год журнала: 2025, Номер 3(2), С. 6 - 6
Опубликована: Март 26, 2025
Over 2.2 billion people across the globe face significant barriers to accessing essential ophthalmic care, with elderly, rural, and refugee populations being disproportionately affected, deepening existing disparities in eye care. Three-dimensional printing is a novel technology that has potential transform field improve access by alleviating many patient-specific barriers. This article delves into evolution of 3D within ophthalmology, highlighting its current applications future potential. It explores various techniques numerous biomaterials discussing their effectiveness creating advanced solutions such as bioengineered corneas, ocular prosthetics, innovative treatments for dry syndrome, from punctal plugs lacrimal gland models. Additionally, revolutionized drug delivery systems conditions like glaucoma, retinal diseases, brachytherapy. Whether through printed contact lens-based or polycaprolactone implants biodegrade provide sustained release without adverse effects, these hold immense field. Despite promise, integration clinical practice presents challenges, which addresses alongside strategies overcoming them. By mapping out technological advancements this review offers roadmap enhancing global care accessibility improving patient outcomes on scale.
Язык: Английский
Процитировано
0
RSC Advances, Год журнала: 2025, Номер 15(16), С. 12765 - 12772
Опубликована: Янв. 1, 2025
Plasmonic contact lenses filter problematic wavelengths, enhancing color perception for individuals with deuteranopia and protanopia. Combining imaging vision simulation, are proved to be an effective solution improved vision.
Язык: Английский
Процитировано
0
ACS Omega, Год журнала: 2024, Номер 9(13), С. 14830 - 14839
Опубликована: Март 20, 2024
Ultraviolet (UV) exposure overdose can cause health issues such as skin burns or other damage. In this work, a UV and temperature sensor smartwatch is developed, utilizing multimaterial 3D printing approach via vat photopolymerization-digital light processing technique. Photochromic (PC) pigments with different sensitivities, UVA (315-400 nm) UVB (315-280 nm), were utilized to cover wider range of mixed in transparent resin, whereas the was printed controlled thickness gradients. A multifunctional next fabricated by adding thermochromic (TC) material PC, which capable sensing change. Colorimetric measurements assisted smartphone-based application provided instantaneous well cumulative from sunlight. The mechanical properties device also measured determine its durability. prototype wearable watch prepared fixing 3D-printed dial commercially available silicon wristband suitable for all age groups. water-resistant easily removable, allowing utilization multiple outdoor activities. Thus, developed alerts user extent their exposure, help protect them against overexposure.
Язык: Английский
Процитировано
3
Frontiers in Bioengineering and Biotechnology, Год журнала: 2024, Номер 12
Опубликована: Окт. 8, 2024
In this study, multifunctional Fresnel lenses were explored as a potential solution for correcting vision in patients with color deficiency (CVD) and high myopia. Current studies have primarily focused on correction through the 3D printing of glasses contact lenses. However, 3D-printed devices, such lenses, goes beyond addressing single issue. For computer-aided design (CAD) model lens diopter based constant height configuration was developed. The CAD successfully fabricated using vat photopolymerization printer, employing laboratory-prepared transparent HEMA resin. resin modified two Atto dyes (565 nm 488 nm), known their ability to filter out problematic wavelengths (400–500 540–580 nm) address deficiency. printed characterized by chemical, physical, optical properties various characterization techniques. focusing performance evaluated focal length measurements, results obtained less than 2 mm deviation from value, having assist higher myopic correction. resulting spectra compared commercial glasses, revealing close agreement CVD These expand applications ophthalmology, demonstrating effectiveness vision-correcting imaging systems.
Язык: Английский
Процитировано
2
Scientific Reports, Год журнала: 2024, Номер 14(1)
Опубликована: Ноя. 29, 2024
Abstract This work uses the polymeric reduction method to explore in-situ synthesis of gold nanoparticles (AuNPs) within 3D-printed optical fiber probes (OFPs). Digital light processing (DLP) 3D printing is employed fabricate OFPs using a resin consisting hydroxyethyl methacrylate (HEMA) and polyethylene glycol diacrylate (PEGDA). After printing, were immersed in boiling precursor solution facilitate AuNPs inside polymer matrix. We produced single material (HEMA/PEGDA) multimaterial (HEMA/PEGDA + Dentaclear) loaded with at different concentrations. Scanning electron microscopy analysis confirmed effective distribution dispersion The properties, including reflection transmission spectra, are comprehensively measured customized setups. localized surface plasmon resonance embedded created distinct dip 500–600 nm wavelength range. Higher AuNP concentrations longer dipping times enhanced absorption, reducing intensities. Multimaterial also exhibited tunable filtering capabilities based on concentration. AuNP-loaded demonstrated stable performance across varying temperatures pH environments, highlighting their potential for diverse applications.
Язык: Английский
Процитировано
2
Elsevier eBooks, Год журнала: 2024, Номер unknown, С. 513 - 524
Опубликована: Янв. 1, 2024
Язык: Английский
Процитировано
0
The European Physical Journal Plus, Год журнала: 2024, Номер 139(12)
Опубликована: Дек. 24, 2024
Язык: Английский
Процитировано
0