422479

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Controlling release from 3D printed medical devices using CLIP and drug-loaded liquid resins.

Cameron J Bloomquist et al.

Journal of controlled release : official journal of the Controlled Release Society, 278, 9-23 (2018-03-30)

Mass customization along with the ability to generate designs using medical imaging data makes 3D printing an attractive method for the fabrication of patient-tailored drug and medical devices. Herein we describe the application of Continuous Liquid Interface Production (CLIP) as

Occurrence and removal of benzotriazoles and ultraviolet filters in a municipal wastewater treatment plant

Liu Y, et al.

Environmental Pollution (Barking, Essex : 1987), 165(9), 225-232 (2012)

Stability testing of the plastics additives 2,4-dihydroxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2-hydroxy-4-n-octyloxybenzophenone, 2-ethoxy-2-ethyloxanilide (tinuvin 312) and 2,2'-methylenebis(4-methyl-t-tert-butyl phenol) in aqueous and fatty food simulants.

D V Spyropoulos

Food additives and contaminants, 15(3), 362-369 (1998-07-17)

The stability of five additives used in the manufacture of plastics materials intended to be in contact with foodstuffs was tested in two EU aqueous food simulants (3% acidic acid and 15% ethanol), in olive oil and in two alternative

Accurate and rapid 3D printing of microfluidic devices using wavelength selection on a DLP printer.

Peter J E M van der Linden et al.

Lab on a chip, 20(22), 4128-4140 (2020-10-16)

The use of microfluidics on synchrotron X-ray beamlines represents an advanced sample preparation and delivery platform for state-of-the-art X-ray characterization of micro-samples. The recent developments of 3D printing technologies have opened possibilities for rapid fabrication of complex microfluidic devices. One

Immunological reactions against PMMA lens material?

C Redbrake et al.

Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 231(4), 238-241 (1993-04-01)

We investigated the kind of reactions that occur after injection of a PMMA lens powder into the back skin of rabbit. The lens powder was suspended in NaCl and incomplete Freund's adjuvant to reinforce the immunological reaction. The ELISA test

Effects of a hindered amine light stabilizer and a UV light absorber used in maxillofacial elastomers on human gingival epithelial cells and fibroblasts.

David A Tipton et al.

The Journal of prosthetic dentistry, 100(3), 220-231 (2008-09-03)

Ultraviolet light absorber (UVA) and hindered amine light stabilizer (HALS) retard sun-induced pigment degradation in silicone elastomeric maxillofacial prostheses. HALS inhibits polymer degradation and UVA dissipates UV radiation. Their effects on oral cells are unknown. The purpose of this study

In vitro evaluation of color change in maxillofacial elastomer through the use of an ultraviolet light absorber and a hindered amine light stabilizer.

Ngoc H Tran et al.

The Journal of prosthetic dentistry, 91(5), 483-490 (2004-05-22)

External prostheses composed of silicone elastomers exhibit an unwanted color change over time. This study evaluated color stability when an ultraviolet light absorber and hindered amine light stabilizer were mixed in the maxillofacial elastomer containing either organic or inorganic pigments.

Determination of UV stabilizers in PET bottles by high performance-size exclusion chromatography.

M Monteiro et al.

Food additives and contaminants, 13(5), 575-586 (1996-07-01)

A Size Exclusion Chromatography-High Performance Liquid Chromatography (SECHPLC) method to determine antioxidants and UV stabilizers in PET bottles has been developed. In only a single run a synthetic mixture of the stabilizers was separated and quantified. The detection limit obtained

Determination of benzotriazole and benzophenone UV filters in sediment and sewage sludge

Zhang Z, et al.

Environmental Science & Technology, 45(9), 3909-3916 (2011)

Acute toxicity of benzotriazole ultraviolet stabilizers on freshwater crustacean (Daphnia pulex)

Kim J, et al.

The Journal of Toxicological Sciences, 36(2), 247-251 (2011)

Pressurized solvent extraction followed by gas chromatography tandem mass spectrometry for the determination of benzotriazole light stabilizers in indoor dust.

I Carpinteiro et al.

Journal of chromatography. A, 1217(24), 3729-3735 (2010-05-04)

A novel and sensitive method for the determination of five benzotriazole compounds (commonly used as light stabilizers) in indoor dust is presented. Pressurized liquid extraction (PLE) and gas chromatography followed by tandem in time mass spectrometry (GC-MS/MS) were used as

Behaviour of nanoparticle (ultrafine) titanium dioxide pigments and stabilisers on the photooxidative stability of water based acrylic and isocyanate based acrylic coatings

Allen NS, et al.

Polymer Degradation and Stability, 78(3), 467-478 (2002)

[Simultaneous determination of 9 ultraviolet stabilizers in food plastic packaging materials by solid phase extraction-high performance liquid chromatography].

Juzhou Zhang et al.

Se pu = Chinese journal of chromatography, 30(2), 190-195 (2012-06-12)

An effective high performance liquid chromatographic (HPLC) method has been developed for the simultaneous determination of 9 ultraviolet stabilizers in food plastic packaging materials. The food packaging samples were firstly extracted by methanol-ethyl acetate, and then purified by a C18

Migration of a UV stabilizer from polyethylene terephthalate (PET) into food simulants.

T H Begley et al.

Food additives and contaminants, 21(10), 1007-1014 (2005-02-17)

The migration characteristics of the UV stabilizer Tinuvin 234 (2-(2H-benzotriazol-2-yl)-4,6-bis (1-methyl-1-phenylethyl)phenol) into food simulants has been measured from polyethylene terephthalate (PET) using HPLC with UV detection. Ethanol/ water, isooctane and a fractionated coconut oil simulant (Miglyol) were used as food

Non-target screening of (semi-)volatiles in food-grade polymers by comparison of atmospheric pressure gas chromatography quadrupole time-of-flight and electron ionization mass spectrometry.

Qi-Zhi Su et al.

Talanta, 202, 285-296 (2019-06-07)

Atmospheric pressure gas chromatography (APGC) coupled to quadrupole time-of-flight (QTOF) and electron ionization mass spectrometry together with commercial library search are two complementary techniques for non-target screening of volatile and semi-volatile compounds. Optimization was first conducted to achieve easier search

Characterizing the conservation effect of clear coatings on photodegradation of wood.

Pai-Lung Chou et al.

Bioresource technology, 99(5), 1073-1079 (2007-04-21)

Photodiscoloration of clear-coated wood may be caused by the yellowing of both clear coating film and underlying wood, or either of them. Wood specimens covered with two types of free polyurethane films with/without light stabilizer were used to simulate the

Synergism of hindered amine light stabilizers and UV-absorbers

Kurumada T, et al.

Polymer Degradation and Stability, 19(3), 263-272 (1987)

Occurrence and fate of substituted diphenylamine antioxidants and benzotriazole UV stabilizers in various Canadian wastewater treatment processes.

Zhe Lu et al.

Water research, 124, 158-166 (2017-08-02)

Substituted diphenylamine antioxidants (SDPAs) and benzotriazole UV stabilizers (BZT-UVs) are additives used in industrial and consumer products to prevent degradation or color change of materials, but their environmental fate and disposition are not well characterized. In this study, SDPAs and

The effects of nitroxide radicals on oxidative DNA damage.

E Damiani et al.

Free radical biology & medicine, 28(8), 1257-1265 (2000-07-13)

The indolinonic and quinolinic aromatic nitroxides synthesized by us are a novel class of biological antioxidants, which afford a good degree of protection against free radical-induced oxidation in different lipid and protein systems. To further our understanding of their antioxidant

Contact sensitivity of and cross-sensitivity between 2-(2'-hydroxy-5'-methylphenyl)benzotriazole (Tinuvin P) and 2-(2'-hydroxy-3'-tert-butyl-5'-methylphenyl)-5-chlorobenzotriazole (Tinuvin 326) evaluated by lymph node cell proliferation and ear swelling response in mice.

Y Ikarashi et al.

Toxicology letters, 71(2), 151-159 (1994-04-01)

Contact sensitivity of and cross-sensitivity between 2-(2'-hydroxy-5'-methylphenyl)benzotriazole (Tinuvin P, TP) and 2-(2'-hydroxy-3'-tert-butyl-5'-methylphenyl)-5-chlorobenzotriazole (Tinuvin 326, T326) were investigated in BALB/c mice. Mice received an intradermal injection and subsequent topical application of the test chemical. Following final application, auricular lymph node cell

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