Thermal and Fire Behavior of a Bio-Based Epoxy/Silica Hybrid Cured with Methyl Nadic Anhydride

thermosetting polymers have been widely used in various industrial applications as adhesives, coatings and laminated materials, among others. More recently, bisphenol A (BPA) have been banned as a raw material polymer product, because the harmful effects on human health. On the other hand, the use of aromatic amines as curing agents confer the properties of heat resistance, mechanical and fire very well for the final product, even though they are toxic and are subject to government restrictions. In this context, diepoxy monomer anhydride derived sugar and green represent a sustainable alternative to BPA and aromatic amines. Here, we report the “in-situ” sol-gel synthesis, using as a precursor tetraethylorthosilicate (TEOS) and aminopropyl triethoxysilane (APTS) to obtain bio-based epoxy / silica composite;

The first step, APTS is left to react with 2,5-bis [(oxyran-2-ylmethoxy) methyl] furan (BOMF) or diglycidyl ether of bisphenol A (DGEBA) monomer, and the resulting silica particles in epoxy in a second step ; The second system nadic cured with methyl anhydride (MNA). composite morphology investigation through a transmission electron microscope (TEM) showed that the hybrid strategy enables excellent distribution of silica nanoparticles (at the nanometric level) to be achieved in a hybrid network structure for the second diepoxy monomer. Regarding the behavior of the fire, as assessed in a vertical flame spread test, the use of preservatives prevented anhydride melt dripping phenomenon and provide high char-forming character to the bio-based epoxy systems and analog phenyl them.

In addition, forced combustion tests showed that the use of anhydride hardener is not the result of an aliphatic polyamine remarkable decline of the rate of heat release. An overall decline of smoke parameters, which is highly desirable in the context of a larger fire safety observed in the case of system BOMF / MNA. The experimental results show that the effect of silica nanoparticles on the fire behavior seems to be related to the level of their dispersion.

 Thermal and Fire Behavior of a Bio-Based Epoxy/Silica Hybrid Cured with Methyl Nadic Anhydride
Thermal and Fire Behavior of a Bio-Based Epoxy/Silica Hybrid Cured with Methyl Nadic Anhydride

methacrylate perspective in the current dental practices

Objective: To provide a current perspective on the sensitivity of dental personnel with methacrylate materials.


Overview: Methacrylate related sensitivities and allergies today goes beyond traditional thinking about denture base resins and materials while methyl methacrylate. Methacrylate now ubiquitous in the current dental practice and dental personnel should be aware that dental adhesives contain potent sensitizer may also be cross-sensitization to methacrylates individuals did not experience. Sensitivity grow to 2-hydroxyethyl methacrylate (HEMA) has described an epidemic in nature because the industry of artificial nails with dental patients and dental personnel may be more susceptible to tooth methacrylate sensitization.

While contact dermatitis remains the most common clinical presentation related methacrylate, respiratory complications and asthma increase is associated with exposure to methacrylates. While additional personal protective equipment (PPE) is expected to be the first protective choice, the National Institute for Occupational Safety and Health (NIOSH) considers the overall PPE largely ineffective and should be considered only as a last resort.


Conclusion: Dental personnel must be aware of the source of methacrylate and control measures limit the use of workplace exposure to second methacrylate dental personnel and patients.

Amplite™ Fluorimetric Aldehyde Quantitation Kit

10052 200 Tests
EUR 219

Amplite™ Colorimetric Aldehyde Quantitation Kit *Blue Color*

10053 200 Tests
EUR 306

Amplite™ Colorimetric Malondialdehyde (MDA) Quantitation Kit

10070 200 Tests
EUR 350

Amplite™ Fluorimetric Malondialdehyde (MDA) Quantitation Kit

10071 200 Tests
EUR 350

Amplite™ Colorimetric α-Ketoglutarate Quantitation Kit

10085 200 Tests
EUR 393

Amplite™ Fluorimetric α-Ketoglutarate Quantitation Kit

10087 200 Tests
EUR 393

iFluor™ 610 succinimidyl ester

1038 1 mg
EUR 219

iFluor™ A7 SE

1039 1 mg
EUR 219

iFluor™ 546 succinimidyl ester

1048 1 mg
EUR 219

iFluor™ 568 succinimidyl ester

1049 1 mg
EUR 219

iFluor™ 450 maleimide

1057 1 mg
EUR 219

iFluor™ 647 amine

1074 1 mg
EUR 219

iFluor™ 680 amine

1076 1 mg
EUR 219

iFluor™ 700 amine

1077 1 mg
EUR 219

iFluor™ 710 amine

1078 1 mg
EUR 219

iFluor™ 750 amine

1079 1 mg
EUR 219

iFluor™ 680 hydrazide

1086 1 mg
EUR 219

iFluor™ 700 hydrazide

1087 1 mg
EUR 219

iFluor™ 750 hydrazide

1088 1 mg
EUR 219

ReadiUse™ ABTS Substrate Solution *Optimized for ELISA Assays with HRP Conjugates*

11001 1 L
EUR 202

ReadiUse™ TMB Substrate Solution *Optimized for ELISA Assays with HRP Conjugates*

11003 1 L
EUR 480

ReadiUse™ hydrogen peroxide solution *50 mM calibrated and stabilized solution*

11004 5x10 mL
EUR 132

Amplite™ Blue

11005 25 mg
EUR 176

Amplite™ IR

11009 1 mg
EUR 132

Amplite™ Red

11011 1000 Assays
EUR 132

ReadiUse™ TMB Substrate Solution *Optimized for ELISA Assays with HRP Conjugates*

11012 100 ml
EUR 115

ReadiLink™ Rapid mFluor™ Violet 420 Antibody Labeling Kit *Microscale Optimized for Labeling 50 µg Antibody Per Reaction*

1105 2 Labelings
EUR 176

Luminol [3-Aminophthalhydrazide] *CAS 521-31-3*

11050 1 g
EUR 115

iFluor™ 488 tyramide

11060 1 mg
EUR 219

Azido-Cy5 tyramide

11061 1 mg
EUR 306

Amplite™ Fluorimetric Fluorescamine Protein Quantitation Kit *Blue Fluorescence*

11100 200 Tests
EUR 219

Amplite™ Fluorimetric Protein Quantitation Kit *Orange Fluorescence*

11105 500 tests
EUR 219

ReadiLink™ Rapid mFluor™ Violet 540 Antibody Labeling Kit *Microscale Optimized for Labeling 50 µg Antibody Per Reaction*

1114 2 Labelings
EUR 176

ReadiLink™ Rapid mFluor™ Blue 570 Antibody Labeling Kit *Microscale Optimized for Labeling 50 µg Antibody Per Reaction*

1120 2 Labelings
EUR 176

ReadiLink™ Rapid mFluor™ Green 620 Antibody Labeling Kit *Microscale Optimized for Labeling 50 µg Antibody Per Reaction*

1123 2 Labelings
EUR 176

ReadiLink™ Rapid mFluor™ Yellow 630 Antibody Labeling Kit *Microscale Optimized for Labeling 50 µg Antibody Per Reaction*

1126 2 Labelings
EUR 50

Amplite™ Colorimetric Glucose Oxidase Assay Kit

11299 500 Tests
EUR 306

ReadiLink™ Rapid mFluor™ Red 700 Antibody Labeling Kit *Microscale Optimized for Labeling 50 µg Antibody Per Reaction*

1130 2 Labelings
EUR 176

Amplite™ Fluorimetric Glucose Oxidase Assay Kit *Red Fluorescence*

11300 500 Tests
EUR 219

Amplite™ Fluorimetric Myeloperoxidase Assay Kit *Red Fluorescence*

11301 200 Tests
EUR 219

Amplite™ Fluorimetric Glutamate Oxidase Assay Kit *Red Fluorescence*

11302 200 Tests
EUR 219

Amplite™ Fluorimetric Monoamine Oxidase Assay Kit *Red Fluorescence*

11303 200 Tests
EUR 219

Amplite™ Fluorimetric Xanthine Oxidase Assay Kit *Red Fluorescence*

11304 200 Tests
EUR 219

Amplite™ Colorimetric Superoxide Dismutase (SOD) Assay Kit

11305 200 Tests
EUR 219

Amplite™ Fluorimetric Catalase Assay Kit *Red Fluorescence*

11306 200 Tests
EUR 219

Amplite™ Colorimetric Xanthine Oxidase Assay Kit

11307 200 Tests
EUR 219

mFluor™ Violet 450 acid

1140 5 mg
EUR 219

Amplite™ Colorimetric Acetylcholinesterase Assay Kit

11400 200 Tests
EUR 219

Amplite™ Fluorimetric Acetylcholinesterase Assay Kit *Green Fluorescence*

11401 200 Tests
EUR 219

Amplite™ Fluorimetric Acetylcholinesterase Assay Kit *Red Fluorescence*

11402 200 Tests
EUR 219

Amplite™ Fluorimetric Acetylcholine Assay Kit *Red Fluorescence*

11403 200 Tests
EUR 219

mFluor™ Violet 510 acid

1141 5 mg
EUR 306

mFluor™ Violet 540 acid

1142 5 mg
EUR 306

mFluor™ Blue 570 acid

1143 5 mg
EUR 306

mFluor™ Green 620 acid

1144 5 mg
EUR 306

mFluor™ Yellow 630 acid

1145 5 mg
EUR 50

mFluor™ Red 700 acid

1146 5 mg
EUR 306

mFluor™ Violet 500 SE

1149 1 mg
EUR 219

mFluor™ Violet 450 SE

1150 1 mg
EUR 219

Cell Meter™ Intracellular Fluorimetric Hydrogen Peroxide Assay Kit *Green Fluorescence*

11503 200 Tests
EUR 263

Cell Meter™ Intracellular Fluorimetric Hydrogen Peroxide Assay Kit *Blue Fluorescence*

11504 100 Tests
EUR 263

Cell Meter™ Intracellular Fluorimetric Hydrogen Peroxide Assay Kit *Blue Fluorescence Optimized for Flow Cytometry*

11505 100 Tests
EUR 263

Cell Meter™ Intracellular Fluorimetric Hydrogen Peroxide Assay Kit *Green Fluorescence Optimized for Flow Cytometry*

11506 100 Tests
EUR 263

mFluor™ Violet 510 SE

1151 1 mg
EUR 219

mFluor™ Violet 540 SE

1152 1 mg
EUR 219

Amplite™ Fluorimetric Goat Anti-Mouse IgG-HRP Conjugate ELISA Assay Kit *Red Fluorescence*

11540 1000 Tests
EUR 219

Amplite™ Fluorimetric Goat Anti-Rabbit IgG-HRP Conjugate ELISA Assay Kit *Red Fluorescence*

11541 1000 Tests
EUR 219

Amplite™ Colorimetric Peroxidase (HRP) Assay Kit *Blue Color*

11551 500 Tests
EUR 219

Amplite™ Fluorimetric Peroxidase (HRP) Assay Kit *Red Fluorescence*

11552 500 Tests
EUR 219

Amplite™ Fluorimetric Peroxidase (HRP) Assay Kit *Near Infrared Fluorescence*

11553 500 Tests
EUR 306

Amplite™ Luminometric Peroxidase (HRP) Assay Kit

11559 500 Tests
EUR 219

Amplite™ Fluorimetric Glutathione Peroxidase Assay Kit *Blue Fluorescence*

11560 200 Tests
EUR 306

mFluor™ Blue 570 SE

1160 1 mg
EUR 306

FDP [Fluorescein diphosphate, tetraammonium salt] *CAS 217305-49-2*

11600 5 mg
EUR 132

MUP, disodium salt [4-Methylumbelliferyl phosphate, disodium salt] *CAS 22919-26-2*

11610 25 mg
EUR 115

MUP, disodium salt [4-Methylumbelliferyl phosphate, disodium salt] *CAS 22919-26-2*

11612 10 g
EUR 898

MUP [4-Methylumbelliferyl phosphate, free acid] *CAS 3368-04-5*

11614 25 mg
EUR 115

MUP [4-Methylumbelliferyl phosphate, free acid] *CAS 3368-04-5*

11617 5 g
EUR 480

pNPP [4-Nitrophenyl phosphate, disodium salt] *CAS 4264-83-9*

11619 25 mg
EUR 115

CF-MUP, sodium salt *Superior alternative to MUP*

11628 10 mg
EUR 50

mFluor™ Green 620 SE

1165 1 mg
EUR 306

mFluor™ Yellow 630 SE

1170 1 mg
EUR 50

ADP-ribose-pNP

11700 1 mg
EUR 219

mFluor™ Red 780 SE

1191 1 mg
EUR 306

Amplite™ Colorimetric Alkaline Phosphatase Assay Kit *Yellow Color*

11950 500 Tests
EUR 176

Amplite™ Fluorimetric Alkaline Phosphatase Assay Kit *Blue Fluorescence*

11952 500 Tests
EUR 219

Amplite™ Fluorimetric Alkaline Phosphatase Assay Kit *Green Fluorescence*

11953 500 Tests
EUR 219

Amplite™ Fluorimetric Alkaline Phosphatase Assay Kit *Near Infrared Fluorescence*

11954 500 Tests
EUR 219

Amplite™ Luminometric Alkaline Phosphatase Assay Kit *Luminescence*

11956 100 Tests
EUR 219

ReadiLink™ Rapid iFluor™ 555 Antibody Labeling Kit *Microscale Optimized for Labeling 50 µg Antibody Per Reaction*

1227 2 Labelings
EUR 176

ReadiLink™ Rapid iFluor™ 647 Antibody Labeling Kit *Microscale Optimized for Labeling 50 µg Antibody Per Reaction*

1235 2 Labelings
EUR 176

ReadiLink™ Rapid iFluor™ 680 Antibody Labeling Kit *Microscale Optimized for Labeling 50 µg Antibody Per Reaction*

1240 2 Labelings
EUR 176

ReadiLink™ Rapid iFluor™ 700 Antibody Labeling Kit *Microscale Optimized for Labeling 50 µg Antibody Per Reaction*

1245 2 Labelings
EUR 176

Cyluc1 [(4S)-2-(6,7-Dihydro-5H-thiazolo[4,5-f]indol-2-yl)-4,5-dihydro-thiazole-4-carboxylic acid]

12481 25 mg
EUR 219

Cyluc1 [(4S)-2-(6,7-Dihydro-5H-thiazolo[4,5-f]indol-2-yl)-4,5-dihydro-thiazole-4-carboxylic acid]

12482 100 mg
EUR 480

ReadiLink™ Rapid iFluor™ 750 Antibody Labeling Kit *Microscale Optimized for Labeling 50 µg Antibody Per Reaction*

1250 2 Labelings
EUR 176

D-Luciferin, free acid *CAS#: 2591-17-5*

12501 25 mg
EUR 115

D-Luciferin, free acid *CAS#: 2591-17-5*

12502 100 mg
EUR 132

D-Luciferin, free acid *CAS#: 2591-17-5*

12503 1 g
EUR 528

D-Luciferin, potassium salt *CAS#: 115144-35-9*

12505 25 mg
EUR 115

D-Luciferin, potassium salt *CAS#: 115144-35-9*

12506 100 mg
EUR 132

D-Luciferin, potassium salt *CAS#: 115144-35-9*

12507 1 g
EUR 263

D-Luciferin, sodium salt *CAS#: 103404-75-7*

12509 25 mg
EUR 115

D-Luciferin, sodium salt *CAS#: 103404-75-7*

12510 100 mg
EUR 132

D-Luciferin, sodium salt *CAS#: 103404-75-7*

12511 1 g
EUR 528

D-Luciferin phosphate *CAS 145613-12-3*

12512 1 mg
EUR 219

D-Luciferin galactoside *CAS 131474-38-9*

12513 5 mg
EUR 219

D-Luciferin methyl ester *CAS 73918-26-0*

12514 5 mg
EUR 219

D-Luciferin ethyl ester *CAS 135251-85-3*

12515 5 mg
EUR 219

D-Luciferin acetate

12516 5 mg
EUR 219

Amplite™ Luciferase Reporter Gene Assay Kit *Bright Glow*

12518 1 plate
EUR 176

Amplite™ Luciferase Reporter Gene Assay Kit *Bright Glow*

12519 10 plates
EUR 393

Amplite™ Luciferase Reporter Gene Assay Kit *Bright Glow*

12520 100 plates
EUR 2616

Amplite™ Gaussia Luciferase Reporter Gene Assay Kit *Bright Glow*

12530 1 plate
EUR 219

Amplite™ Gaussia Luciferase Reporter Gene Assay Kit *Bright Glow*

12531 10 Plates
EUR 702

Amplite™ Gaussia Luciferase Reporter Gene Assay Kit *Bright Glow*

12532 100 plates
EUR 3486

Amplite™ Renilla Luciferase Reporter Gene Assay Kit *Bright Glow*

12535 1 plate
EUR 219

Amplite™ Renilla Luciferase Reporter Gene Assay Kit *Bright Glow*

12536 10 plates
EUR 876

Amplite™ Renilla Luciferase Reporter Gene Assay Kit *Bright Glow*

12537 100 plates
EUR 3486

ReadiLink™ Rapid iFluor™ 488 Antibody Labeling Kit *Microscale Optimized for Labeling 50 µg Antibody Per Reaction*

1255 2 Labelings
EUR 176

Amplite™ Colorimetric Beta-Lactamase Activity Assay Kit

12551 200 Tests
EUR 393

BG-NH2 [O6-(4-Aminomethyl-benzyl)guanine]

12560 1 mg
EUR 219

BG-NH2 [O6-(4-Aminomethyl-benzyl)guanine]

12561 5 mg
EUR 393

ReadiLink™ Rapid iFluor™ 633 Antibody Labeling Kit *Microscale Optimized for Labeling 50 µg Antibody Per Reaction*

1260 2 Labelings
EUR 176

Amplite™ Fluorimetric Beta-Galactosidase Assay Kit *Green Fluorescence*

12601 500 Tests
EUR 306

Amplite™ Fluorimetric Neuraminidase Assay Kit *Blue Fluorescence*

12602 200 Tests
EUR 306

Amplite™ Fluorimetric Beta-Galactosidase Assay Kit *Red Fluorescence*

12603 200 Tests
EUR 306

Amplite™ Colorimetric Beta-Galactosidase Assay Kit

12604 200 Tests
EUR 306

HIS Lite™ Cy3 Bis NTA-Ni Complex

12610 1 mg
EUR 393

HIS Lite™ Cy5 Bis NTA-Ni Complex

12613 1 mg
EUR 393

ReadiLink™ Rapid iFluor™ 790 Antibody Labeling Kit *Microscale Optimized for Labeling 50 µg Antibody Per Reaction*

1265 2 Labelings
EUR 176

ReadiLink™ Rapid Cy3 Antibody Labeling Kit *Microscale Optimized for Labeling 50 µg Antibody Per Reaction*

1290 2 Labelings
EUR 176

ReadiLink™ Rapid Cy5 Antibody Labeling Kit *Microscale Optimized for Labeling 50 µg Antibody Per Reaction*

1292 2 Labelings
EUR 176

ReadiLink™ Rapid Cy7 Antibody Labeling Kit *Microscale Optimized for Labeling 50 µg Antibody Per Reaction*

1294 2 Labelings
EUR 176

ReadiLink™ Rapid FITC Antibody Labeling Kit *Microscale Optimized for Labeling 50 µg Antibody Per Reaction*

1299 2 Labelings
EUR 176

ReadiLink™ Rapid trFluor™ Eu Antibody Labeling Kit *Microscale Optimized for Labeling 50 ug Antibody Per Reaction*

1300 2 Labelings
EUR 876

Benzoyl-Leu-Gly-Arg-Aminoluciferin

13000 1 mg
EUR 480

BOC-Leu-Gly-Arg-Aminoluciferin

13001 1 mg
EUR 480

BOC-Val-Pro-Arg-Aminoluciferin

13002 1 mg
EUR 480

D-VLK-AMC [D-Val-Leu-Lys-AMC]

13201 5 mg
EUR 132

Ac-DEVD-AFC *CAS 201608-14-2*

13401 5 mg
EUR 132

Ac-DEVD-AMC *CAS 169332-61-0*

13402 5 mg
EUR 132

Ac-DEVD-CHO *CAS 169332-60-9*

13403 1 mg
EUR 132

Ac-DEVD-pNA *CAS 189950-66-1*

13405 5 mg
EUR 132

Ac-IETD-AFC *CAS 211990-57-7*

13410 5 mg
EUR 219

Ac-IETD-AMC

13411 5 mg
EUR 219

Ac-IETD-CHO *CAS 191338-86-0*

13412 5 mg
EUR 219

Z-IETD-pNA *CAS 219138-21-3*

13413 5 mg
EUR 219

D-Aminoluciferin

13415 10 mg
EUR 219

Buccutite™ Rapid PE-Cy7 Tandem Antibody Labeling Kit *Microscale Optimized for Labeling 25 ug Antibody Per Reaction*

1342 2 Labelings
EUR 306

Z-DEVD-AMC

13421 5 mg
EUR 176

Z-IETD-AFC *CAS 219138-02-0*

13425 5 mg
EUR 158

Ac-LEHD-AMC *CAS 292633-16-0*

13426 5 mg
EUR 176

(Ac-LEHD)2-R110

13427 1 mg
EUR 132

(Ac-IETD)2-R110

13431 1 mg
EUR 132

Z-DEVD-ProRed™ 620

13433 1 mg
EUR 306

Z-IETD-ProRed™ 620

13434 1 mg
EUR 306

Z-LEHD-ProRed™ 620

13435 1 mg
EUR 306

Leu-AMC [L-Leucine-7-amido-4-methylcoumarin] *CAS 62480-44-8*

13445 10 mg
EUR 176

Gly-Pro-AMC *CAS 115035-46-6*

13450 5 mg
EUR 132

(Suc-LLVY)2R110

13451 1 mg
EUR 132

Suc-LLVY-Aminoluciferin

13452 1 mg
EUR 219

Suc-LLVY-AMC

13453 1 mg
EUR 132

(Ac-ANW)2R110

13455 1 mg
EUR 219

Amplite™ Fluorimetric Proteasome 20S Activity Assay Kit *Green Fluorescence*

13456 100 tests
EUR 306

Pro-AMC

13457 5 mg
EUR 132

Ala-AMC

13458 5 mg
EUR 132

D-Ala-AMC *CAS 201847-52-1*

13459 5 mg
EUR 132

MeO-Succ-Arg-Pro-Tyr-AMC

13460 5 mg
EUR 132

BOC-Val-Pro-Arg-AMC

13461 5 mg
EUR 132

(BOC-VPR)2R110

13462 1 mg
EUR 132

(Ac-KQL)2R110

13465 1 mg
EUR 132

(Z-LLE)2R110

13466 1 mg
EUR 132

(Ac-PAL)2R110

13467 1 mg
EUR 132

(Ac-WLA)2R110

13468 1 mg
EUR 132

Buccutite™ Rapid APC-iFluor™ 700 Tandem Antibody Labeling Kit *Microscale Optimized for Labeling 25 ug Antibody Per Reaction*

1347 2 Labelings
EUR 306

SRB-VAD-FMK [Sulforhodamine B-VAD-FMK]

13472 25 Tests
EUR 132

mFluor™ 450-VAD-FMK

13475 25 Tests
EUR 132

mFluor™ 510-VAD-FMK

13476 25 Tests
EUR 132

Z-Gly-Pro-AMC *CAS 68542-93-8*

13477 5 mg
EUR 132

Benzoyl-Arg-AMC

13478 5 mg
EUR 132

Ac-Pro-Ala-Leu-AMC

13479 5 mg
EUR 132

Buccutite™ Rapid APC-Cy5.5 Tandem Antibody Labeling Kit *Microscale Optimized for Labeling 25 ug Antibody Per Reaction*

1350 2 Labelings
EUR 306

Amplite™ Universal Fluorimetric Protease Activity Assay Kit *Green Fluorescence*

13500 500 Tests
EUR 219


Clinical significance: Sensitization to material workplace methacrylate is a major concern grows teeth and dental personnel should be aware of both the content of methacrylic current materials and products that contain ingredients with the most potential for sensitization.