Continuous fabrication method of micro/nano structure using thermosetting polymer and dry adhesive production as its application are presented.

The remoras are marine species that can effectively move by clinging onto other via a suction disk on their dorsal side, which is composed of complex structures. inner could be divided into three large parts, namely, lip, lamella, and spinule. lamella deformed actively to generate pressure difference between the inside outside disk, lip maintains sealing. spinule, hairs with diameter 300 μm or less hair, enhances frictional force. In this study, we easily fabricated polymer-based adhesive...

The wettability of surfaces can be manipulated using actuating micro/nanostructures, as in the manipulation water droplets with magnetic forces. Controlling magneto-responsive is limited to optical applications, however, because these are normally opaque. Herein, we introduce a surface that capable controlling not only but also transmittance. fabricated composite iron particles polydimethylsiloxane (PDMS). Thanks elastic properties PDMS, microstructures' bending induced by applying force....

Selenium (Se) is known to prevent several cancers while the relationship between high iron and risk of colorectal cancer controversial. To investigate effects Se in colon carcinogenesis, we subjected three different levels high-iron diet a mouse model which animals were treated with azoxymethane (AOM) injections followed by dextran sodium sulfate (DSS) administration. There five experimental groups including vehicle group [normal-Fe (NFe, 45 ppm)+medium-Se (MSe, 0.1 ppm)], positive control...

Microparticles with multiple internal chambers hold great promise as drug delivery systems due to their ability sustain the release of drugs short half‐lives. However, conventional batch methods used for fabrication have limitations in terms encapsulation efficiency and particle size distributions, while microfluidic suffer from low production efficiency. Herein, a batch‐microfluidic hybrid method is presented fabricating poly(DL‐lactic‐ co ‐glycolic acid) (PLGA) polymeric microparticles...

Study Design. This is an in vitro experimental study of the technical capability and safety a navigable percutaneous disc decompression device named L'DISQ.

Many research groups have studied biomimetic functional surfaces for practical applications. Dry adhesives inspired by the gecko foot consist of hierarchical and numerous micro/nano hairs can achieve pull-off strengths vertical shear adhesion up to 20 N cm-2. However, when detachment nearly dry adhesive is carried out peeling, strength in tilted state remarkably reduced. In this study, an enhanced was fabricated using a strategy that reduces restoring force from bending moment. An experiment...

A soundwave is transmitted by adjacent molecules in the medium, and depending on type of sound, it exhibits various characteristics such as frequency, sound pressure, etc. If acoustic wavelength sufficiently long compared with size an element, physical analysis within element could be simplified regardless shape element: this called "long approximation". Helmholtz resonator, a representative which satisfies theory", consists neck part cavity part. The resonators can absorb certain...

The magneto-caloric effect and magnetization behavior have been analyzed in the double-perovskite Ba2−xLaxFeMoO6 compound with sintering temperature external magnetic field. Samples were fabricated by conventional solid-state reaction method. X-ray diffraction measurements revealed that all samples had a single phase cubic structure. maximum entropy changes obtained range of 320–330 K for compounds. ΔSM is about 0.38 J/kg (x = 0.2) an field 7 kOe, however, 2.93 15 kOe. value increased eight...

Nanoscale liposomes are widely recognized as promising drug delivery materials; yet, their utilization in oral has been hindered by limited ability to efficiently penetrate the intestinal mucus layer. Herein, we present an approach enhance and improve penetration capability of conjugating bromelain, a mucolytic enzyme derived from pineapple stems, liposome membrane (Bro-Lip). With optimized bromelain payload 11.1 nmol/mg, achieved impressive 47.8% conjugation efficiency while retaining 77.5%...

The magnetocaloric effect and magnetization behavior have been analyzed in the double-perovskite Ba <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> FeMoO xmlns:xlink="http://www.w3.org/1999/xlink">6</sub> compound with sintering temperature at 1273, 1373, 1473 K. Samples were fabricated by conventional solid-state reaction method. X-ray diffraction measurements revealed that all samples are single phase cubic structure. Detailed...

Iron nanoparticles (Fe-NPs) have recently been used for cancer diagnosis and therapy imaging contrast drug delivery. However, no study on nutritional bioavailability of Fe-NPs in the body has reported. Ascorbic acid (AA) is known to aid absorption iron stomach by reducing Fe (III) (II). In this study, we investigated with AA iron-deficiency-anemic mice comparison non-nano particles. Iron-deficient anemia was induced feeding an iron-deficient diet (4.5 mg Fe/kg) ocular bleeding from...

Abstract Imprint lithography is one of the most used techniques for fabricating microstructures, owing to its high efficiency in both costs and time. However, imprinting has limited feasibility realizing complex microstructures due difficulties arising from inherent limitations demolding process. Herein, a facile method demonstrated closed‐loop reentrant topographies with microscale meshes through combination imprint shape memory polymer (SMP). The mesh structure imprinted onto pre‐pressed...

Purpose: Screening mammography has enhanced the detection of nonpalpable breast cancer with microcalcification. The purpose this study is to evaluate differences in clinicopathologic characteristics malignant lesions Methods: From January 2008 December 2013, a total 103 patients who had undergone excision under mammo-guided localization were evaluated. We retrospectively reviewed clinical and pathologic data Breast Imaging Reporting Data System (BI-RADS) (MMG) ultrasonography (US) results...

Iron is an essential trace element for normal body’s functions. The restriction of iron availability directly limits erythropoiesis. objective this experiment was to compare the bioavailability nanoparticles (Fe-NPs) with iron-microparticles (Fe-MPs) in anemic mice. There were four experimental groups including control group, iron-deficiency anemia (IDA) Fe-NPs and Fe-MPs group. Animals group fed on adequate iron-containing diet (45 ppm Fe). Meanwhile, animals other three a low Fe (4.5 Fe) 7...

Abstract Controlling the sizes of liposomes is critical in drug delivery systems because it directly influences their cellular uptake, transportation, and accumulation behavior. Although hydrodynamic focusing has frequently been employed when synthesizing nano-sized liposomes, little known regarding how flow characteristics determine liposome formation. Here, various homogeneous (50–400 nm) were prepared according to rate ratios two solvents, ethanol, isopropyl alcohol (IPA). Relatively...