Functional and Antioxidant Properties of Plastic Bottle Caps Incorporated with BHA or BHT

0 Comments

The use of a pacifier has been reported to be a causative factor of recurrent acute otitis media

(RAOM) because the negative pressure which is generated during sucking may cause a negative intra-tympanic pressure and favour the reflux of nasopharyngeal secretions into the Eustachian tube. Push and pull (P&P) plastic bottle caps, recently marketed in Italy, might also induce negative nasopharyngeal pressure.
  • This study was aimed to investigate if there is a difference in the prevalence of habitual use of P&P plastic bottle caps among children with a positive history of RAOM and healthy controls.
  • A telephonic interview was performed in order to retrospectively evaluate the prevalence of habitual use of P&P plastic bottle cap among children with a history of RAOM and healthy controls, comparable to the former for environmental risk factors for RAOM.
  • Data were obtained from 57 Caucasian patients (males=36/57; 63.2%) with a median age of 59 (range=21-90) months, including 28 children with a history of RAOM and 29 healthy controls.
  • Habitual use of P&P plastic bottle cap was significantly (p=0.047) more frequent in children with a history of RAOM (14/28; 50.0%) than in control group (7/29; 24.2%). Multivariate logistic regression analysis adjusted for age confirmed a significant association (p<0.01; Pseudo R(2)=0.2) between the use of P&P plastic bottle cap and a positive history of RAOM (adjusted OR=4.0; range=1.1-15.0).
  • Our preliminary data show a significantly increased prevalence of P&P plastic cap bottle habitual users among children with a history or RAOM and support the need for larger studies to confirm the role of using P&P bottles as risk factor of RAOM and to identify the age groups at higher risk.

We report a rare case of late knee locking after an open knee injury in a polytrauma patient with a pelvic fracture and a contralateral femoral artery injury.

  1. Once the life and limb threatening injuries were addressed, debridement and washout of the knee wound was performed. X-rays and subsequent CT revealed only an undisplaced patella fracture. The patient presented 6 months later to a knee surgeon with recurrent locking.
  2. An arthroscopy was performed and a 10 mm plastic soft drink bottle cap was retrieved leading to the immediate resolution of symptoms without complications. Open knee injuries require thorough debridement washout and joint assessment. Late locking should raise the suspicion of an intra-articular loose or foreign body. Arthroscopy is an excellent first line tool in the diagnosis and late management of this unusual problem.
  3. Reusable plastic sports bottles are used extensively worldwide, and little is known about the migration of chemicals from the bottles into drinking water. In this study, we investigated the chemical migration into drinking water stored for 24 h in new bottles, used bottles and bottles washed in the dishwasher.
  4. Non-target screening (NTS) by liquid-chromatography – high-resolution mass spectrometry (LC-HRMS) was performed to identify these compounds. We detected > 3500 dishwasher related compounds, with 430 showing migration even after subsequent flushing of the bottles.
  5. In addition, more than 400 plastic related compounds were detected, with high peaks for oligomers suspected to originate from the biodegradable polyester polycaprolactone, and aromatic amines, which may have been introduced as slip agents or antioxidants. These compounds have never been reported before in bottled water. Most of the identified compounds migrating out of the used bottles were plasticizers, antioxidants or photoinitiators.
  6. The presence of photoinitiators are of particular concern, due to possible endocrine disrupting effects. Furthermore, diethyltoluamide (DEET) was detected, which may have been formed from the plasticizer laurolactam. Typically, the dishwashing process enhanced the leaching of plastic related compounds, and even after additional water flushing, the average peak intensity of these compounds was only reduced by half.

Metal-organic frameworks (MOFs) derived from recycled polyester (polyethylene terephthalate, PET) bottles were investigated in both batch and column studies for the removal of arsenate.

As-synthesized Fe-MOF, Zr-MOF, and La-MOF were systematically analyzed by SEM, PXRD, FTIR, BET, and XPS techniques. The obtained MOFs showed high crystallinity with the specific surface area of 128.3, 290.4, and 61.8 m2/g for Fe-MOF, Zr-MOF, and La-MOF, respectively. The Langmuir isotherm and pseudo-second-order kinetic model simulated arsenate adsorption on MOF materials well, which can be explained by electrostatic interactions, surface complexation, and ligand exchange mechanisms.
The maximum adsorption capacities of arsenate onto Fe-MOF, Zr-MOF, and La-MOF were found to be 70.02, 85.72, and 114.23 mg/g at pH 7, respectively. The effect of pH and co-existing anions on the arsenate adsorption on MOF materials was also evaluated for practical applications. The MOF materials showed reduced adsorption capacity for arsenate by less than 10% up to four cycles of regeneration and did not induce any significant (p > 0.05) acute toxicity (<2.5% mortality) in Daphnia magna.

Disposable Meat Sample Plastic tubes with caps (5 ml) (1000/pk)

MST5-1000 Alpha Diagnostics 1 pk 343.2 EUR

LCP EZ-Cut films (50 pieces, with liners)

MLCP-EZCTF-50 MiTeGen 50 FILMS 234 EUR

SCREW CAPS WITH "O" RINGS. BROWN

SCO-BR CORNING 500/pk 444 EUR

Kinesis DigiTuBEs 50 mL with RackLock (incl. blue caps)

CHR1190 Scientific Laboratory Supplies PK750 446.31 EUR

Disposable Meat Sample Plastic tubes with caps (5 ml) (250/pk)

MST5-250 Alpha Diagnostics 1 pk 123.6 EUR

Duran Bottles 100Ml Plastic coat

F94003 Scientific Laboratory Supplies PK10 189.24 EUR

Plastic bottles 250ml supply/waste

WAT4842 Scientific Laboratory Supplies PK2 144.78 EUR

Corning 150mL Square Polycarbonate Storage Bottles with 45mm Caps

431430 Scientific Laboratory Supplies PK24 99.18 EUR

Corning 250mL Square Polycarbonate Storage Bottles with 45mm Caps

431431 Scientific Laboratory Supplies PK24 103.74 EUR

Corning 500mL Square Polycarbonate Storage Bottles with 45mm Caps

431432 Scientific Laboratory Supplies PK24 142.5 EUR

Corning 1L Square Polycarbonate Storage Bottles with 45mm Caps

431433 Scientific Laboratory Supplies PK24 197.22 EUR

Nalgene Jar 1000 mL transparent PC

2116-1000 Scientific Laboratory Supplies PK16 319.2 EUR

LV CryoOil 50 ml

LVCO-50 MiTeGen 50 ml 245 EUR

Polyethyleneglycol 1000, 50 % w/v, 100 ML

M-CSS-242 MiTeGen 100 ml 70 EUR

Costar 125mL Traditional Style Polystyrene Storage Bottles with 45mm Caps

8388 Scientific Laboratory Supplies PK24 104.88 EUR

Costar 1L Traditional Style Polystyrene Storage Bottles with 45mm Caps

8396 Scientific Laboratory Supplies PK12 118.56 EUR

Corning 250mL Easy Grip Polystyrene Storage Bottles with 45mm Caps

430281 Scientific Laboratory Supplies PK24 116.28 EUR

Corning 500mL Easy Grip Polystyrene Storage Bottles with 45mm Caps

430282 Scientific Laboratory Supplies PK24 159.6 EUR

Corning 1L Easy Grip Polystyrene Storage Bottles with 45mm Caps

430518 Scientific Laboratory Supplies PK24 235.98 EUR

Corning 150mL Easy Grip Polystyrene Storage Bottles with 45mm Caps

431175 Scientific Laboratory Supplies PK24 112.86 EUR

ERLENMEYER FLASK, 50 ML, PP

4985P-50 CORNING 6/pk 60 EUR

ERLENMEYER FLASK, 50 ML, PMP

4990P-50 CORNING 6/pk 64.8 EUR

Bottles Nalgene 500 Ml

2107-0016 Scientific Laboratory Supplies PK16 348.84 EUR

0.2mL PCR tubes, individual, with flat caps, 1000/pk

P3030 MTC Bio 1000/pack 89.98 EUR

0.2mL PCR tubes, individual, with domed caps, 1000/pk

P3040 MTC Bio 1000/pack 89.98 EUR

1000 ug/mL Dodine in Acetonitirile:Methanol (50:50)Volume: 1mL Ampule

S-1807-ACN Scientific Laboratory Supplies 1ML 174.42 EUR

Caps Nalge

712150-1000 Scientific Laboratory Supplies PK12 51.3 EUR

Syringe Injekt 2 pieces volume 2 mL

DD921001 Scientific Laboratory Supplies PK100 10.26 EUR

TruStrip Sample Transfer Strips, 50-ul, 50/Pk (with sample tracking dye)

STSD-50-50 Alpha Diagnostics 1 Pk Ask for price

White Mob Caps in Plastic Bags

SAF9580 Scientific Laboratory Supplies PK100 13.34 EUR

Spray bottle with air spray - 50 mL

DD670885 Scientific Laboratory Supplies EACH 7.87 EUR

50 ml Stripette individually paper/plastic wrapped serological pipettes sterile

GR238023 Genorise Scientific Case of 100 390 EUR

Tubes (empty) pack of 1000 with caps and sealing ring

D1031-T20 Benchmark Scientific 1 PC 119.76 EUR

Bottles Cent Pc 500 Ml

3140-0500 Scientific Laboratory Supplies PK4 161.88 EUR

Media bottles 500 ml petg

Z377058-1CS Scientific Laboratory Supplies PK70 441.18 EUR

Plastic Columns

C-50 ABTBeads 50/pk 216 EUR

0.2 ml Individual PCR Tubes with attached Flat Caps

GP101 GenDepot 1,000 tubes 134.4 EUR

0.2 ml Individual PCR Tubes with attached Domed Caps

GP102 GenDepot 1,000 tubes 134.4 EUR

0.5 ml Individual PCR Tubes with attached Flat Caps

GP103 GenDepot 1,000 tubes 153.6 EUR

0.5 ml Individual PCR Tubes with attached Domed Caps

GP104 GenDepot 1,000 tubes 153.6 EUR

BROWN LOOPED SCREW CAPS WITH "O" RINGS. FITS 0.5ML, 1.5ML AND 2.0ML TUBES

SCO-LP-BR CORNING 500/pk 451.2 EUR

Tubes (empty) pack of 50 with caps and sealing ring

D1031-T21 Benchmark Scientific 1 PC 279.49 EUR

Human Calcyphosine (CAPS) ELISA Kit

DLR-CAPS-Hu-48T DL Develop 48T 620.4 EUR

Human Calcyphosine (CAPS) ELISA Kit

DLR-CAPS-Hu-96T DL Develop 96T 807.6 EUR

Human Calcyphosine (CAPS) ELISA Kit

RDR-CAPS-Hu-48Tests Reddot Biotech 48 Tests 652.8 EUR

Human Calcyphosine (CAPS) ELISA Kit

RDR-CAPS-Hu-96Tests Reddot Biotech 96 Tests 907.2 EUR

Human Calcyphosine (CAPS) ELISA Kit

RD-CAPS-Hu-48Tests Reddot Biotech 48 Tests 625.2 EUR

Human Calcyphosine (CAPS) ELISA Kit

RD-CAPS-Hu-96Tests Reddot Biotech 96 Tests 867.6 EUR

50 Bulk Beads, Stainless Steel, 5mm, alcohol washed, 1000/pk

D1134-50 Benchmark Scientific 1 each 439.1 EUR

Flex 1000 50-1000ul Blue 1000 NS

PIP3630 Scientific Laboratory Supplies PK1000 95.76 EUR

Platform With 30 X 50 Ml Flask Clamps

480166 Scientific Laboratory Supplies EACH 715.92 EUR

Tubes (empty) with caps

SLS1426 Scientific Laboratory Supplies PK1000 212.04 EUR

Tubes (empty) with caps

SLS1428 Scientific Laboratory Supplies PK50 53.47 EUR

Plastic XL Columns

CXL-50 ABTBeads 50/pk 254.4 EUR

Plastic XXL Columns

CXXL-50 ABTBeads 50/pk 314.4 EUR

Plastic Columns Frits

FC-50 ABTBeads 50/pk 99.6 EUR

Adapter 250 mL bottles high-cap

E5920717006 Scientific Laboratory Supplies EACH 281.58 EUR

Bottles Amber Hdpe 125 Ml Nn

2004-0004 Scientific Laboratory Supplies PK12 31.92 EUR

Bottles Cf 250 Ml Pc +Cap

3140-0250 Scientific Laboratory Supplies PK4 132.24 EUR

0.2 ml 8-Strip PCR Tube with Individually Attached Caps

GP900 GenDepot 120 strips 198 EUR

ELISA PLATE READER : MICRO READ 1000

1000 Global Diagnostics B 1 unit 2628 EUR

Flystuff (59-194P) Droso-Plugs Cap for Plastic Bottles

FLY1094 Scientific Laboratory Supplies PK2560 1304.16 EUR

Antigen Retrieval Solution, Citrate pH 6.0 (50 ml, 100X)

ARS6-50 Alpha Diagnostics 5 L 343.2 EUR

Antigen Retrieval Solution, EDTA pH 8.0 (50 ml, 100X)

ARS8-50 Alpha Diagnostics 5 L 343.2 EUR

PBS Tablets (1000 ml)

2129-10 Biovision 196.8 EUR

PBS Tablets (1000 ml)

2129-100 Biovision 764.4 EUR

Bottles 2L Nalgene with Quick Connect

BTLN52 Next Advance 2pack 190.8 EUR

Pump Sampler Set with Glass Bottles

SAM1517 Scientific Laboratory Supplies EACH 208.62 EUR

Autoseq G-50 1000 Columns

27534003 Scientific Laboratory Supplies EACH 1759.02 EUR

Heat Extractor with Plastic Knob

IMS006 ScyTek Laboratories 1 ea. 164.4 EUR

Tube Culture With Svl Plastic

B99485 Scientific Laboratory Supplies PK40 385.17 EUR

Staining Dish with Cover Plastic

X24085 Scientific Laboratory Supplies EACH 116.28 EUR

AXYPREP MAG DYECLEAN KIT- 50 ML - 5000 PREPS

MAG-DYECL-50 CORNING 1/pk 1281.6 EUR

RESERVOIR, POLYPROPYLENE, 50 ML, V-BOTTOM, NONSTERILE, BULK

RES-V-50 CORNING 100/pk 80.4 EUR

Costar 1mL Stripette Serological Pipets Individually Paper/Plastic Wrapped Sterile 50/Bag 1000/Case

4485 Scientific Laboratory Supplies PK1000 249.66 EUR

1000 mL white conical polypropylene container sterile with assembled lid

DD30364 Scientific Laboratory Supplies PK80 199.5 EUR

Plastic XL Columns Frits

FCXL-50 ABTBeads 50/pk 108 EUR

Plastic XXL Columns Frits

FCXXL-50 ABTBeads 50/pk 115.2 EUR

Antigen Retrieval Solution, Tris-EDTA pH 9.0 (50 ml, 100X)

ARS9-50 Alpha Diagnostics 5 L 343.2 EUR

SCREW CAPS WITH "O" RINGS

SCO-R CORNING 500/pk 442.8 EUR

SCREW CAPS WITH "O" RINGS

SCO-W CORNING 500/pk 439.2 EUR

SCREW CAPS WITH "O" RINGS

SCO-Y CORNING 500/pk 442.8 EUR

AlbuVoid Buffer Kit - 1000

AVBK-1000 Biotech Support Group 1000 mL 1399.2 EUR

HemoVoid Buffer Kit - 1000

HVBK-1000 Biotech Support Group 1000 mL 1399.2 EUR

UPCK Buffer Kit - 1000

UPBK-1000 Biotech Support Group 1000 mL 1399.2 EUR

Bottles N/M Amber 30 Ml Nalgene

2004-0001 Scientific Laboratory Supplies PK72 142.5 EUR

Bottles Wash W/M Ldpe 500 Ml

2402-0500 Scientific Laboratory Supplies PK4 30.78 EUR

AXYPREP FRAGMENTSELECT-I KIT- 50 ML - 380 PREPS

MAG-FRAG-I-50 CORNING 1/pk 790.8 EUR

RESERVOIR, POLYPROPYLENE, 50 ML, V-BOTTOM, STERILE, BULK

RES-V-50-S CORNING 5/pk 134.4 EUR

Costar 1mL Stripette Serological Pipets Paper/Plastic Triple Bagged Style Sterile 50/Bag 1000/Case

7041 Scientific Laboratory Supplies PK1000 340.86 EUR

Costar 2mL Stripette Serological Paper/Plastic Wrapped Triple Bagged Style Sterile 50/Bag 1000/Case

7042 Scientific Laboratory Supplies PK1000 386.46 EUR

Disposable Plastic Pestles, Conical, 210mm, 50/Bag

MGR113 Bio Basic 1PK, 50UNIT 70.44 EUR

Disposable Plastic Pestles, Round, 205mm, 50/Bag

MGR114 Bio Basic 1PK, 50UNIT 70.44 EUR

Disposable Plastic Pestles, Conical, 70mm, 50/Bag

MGR115 Bio Basic 1PK, 50UNIT 70.44 EUR

50 ml Reagent Reservoir

GR238016 Genorise Scientific Pack of 200 177.6 EUR

TALON SUPERFLOW 50 ML

GE28-9575-02 Scientific Laboratory Supplies EACH 727.32 EUR

Reagent reservoir 50 mL

DD53482 Scientific Laboratory Supplies PK100 194.94 EUR

SOURCE 15S 50 mL

17094401 Scientific Laboratory Supplies EACH 808.26 EUR

SOURCE 15Q 50 mL

17094701 Scientific Laboratory Supplies EACH 808.26 EUR

SOURCE 30S 50 mL

17127301 Scientific Laboratory Supplies EACH 835.62 EUR
In a flow-through system, Fe-MOF, Zr-MOF, and La-MOF were used to treat 176, 255, and 398 mL bed volumes of arsenate contaminated water, respectively, and consistently reduced the concentration of arsenate ions from 500 to 10 μg/L. This study clearly demonstrated that MOF materials derived from waste PET bottles are economically promising adsorbents for the successful elimination of arsenate species from aqueous environments.

Leave a Reply

Your email address will not be published. Required fields are marked *