Composite Agency polymer analysis Assay,miRNA,peptide Synthesis, Properties, and Derivatization of Poly

Synthesis, Properties, and Derivatization of Poly


composite-agency

Synthesis, Properties, and Derivatization of Poly(dihydrogermane): A Germanium-Based Polyethylene Analogue

Polygermanes are germanium-based analogues of polyolefins and possess polymer backbones made up catenated Ge atoms. In the present contribution we report the preparation of a germanium polyethylene analogue, polydihydrogermane (GeH2)n, via two straightforward approaches that involve topotactic deintercalation of Ca ions from the CaGe Zintl phase.

The resulting (GeH2)n possesses morphologically dependent chemical and electronic properties and thermally decomposes to yield amorphous hydrogenated Ge. We also show that the resulting (GeH2)n provides a platform from which functionalized polygermanes can be prepared via thermally induced hydrogermylation-mediated pendant group substitution.

composite-agency

composite-agency

Polyethylene Glycol (PEG) ELISA Kit

abx258764-20g 20 µg
EUR 3537.5

Polyethylene Glycol (PEG) ELISA Kit

abx258764-5g 5 µg
EUR 743.75

PEG(Polyethylene Glycol) ELISA Kit

ELK8264-48T 48T Ask for price
Description: This assay employs the competitive inhibition enzyme immunoassay technique. The microtiter plate provided in this kit has been pre-coated with PEG protein. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to PEG. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of PEG in the samples is then determined by comparing the OD of the samples to the standard curve.

PEG(Polyethylene Glycol) ELISA Kit

ELK8264-96T 96T Ask for price
Description: This assay employs the competitive inhibition enzyme immunoassay technique. The microtiter plate provided in this kit has been pre-coated with PEG protein. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to PEG. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of PEG in the samples is then determined by comparing the OD of the samples to the standard curve.

General Polyethylene Glycol (PEG) ELISA Kit

CEX163Ge-10x96wellstestplate 10x96-wells test plate
EUR 7248.6
Description: This is Competitive Enzyme-linked immunosorbent assay for detection of General Polyethylene Glycol (PEG) in serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids.

General Polyethylene Glycol (PEG) ELISA Kit

CEX163Ge-1x48wellstestplate 1x48-wells test plate
EUR 702.12
Description: This is Competitive Enzyme-linked immunosorbent assay for detection of General Polyethylene Glycol (PEG) in serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids.

General Polyethylene Glycol (PEG) ELISA Kit

CEX163Ge-1x96wellstestplate 1x96-wells test plate
EUR 951.6
Description: This is Competitive Enzyme-linked immunosorbent assay for detection of General Polyethylene Glycol (PEG) in serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids.

General Polyethylene Glycol (PEG) ELISA Kit

CEX163Ge-5x96wellstestplate 5x96-wells test plate
EUR 3922.2
Description: This is Competitive Enzyme-linked immunosorbent assay for detection of General Polyethylene Glycol (PEG) in serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids.

General Polyethylene Glycol (PEG) ELISA Kit

4-CEX163Ge
  • Ask for price
  • Ask for price
  • Ask for price
  • 10 plates of 96 wells
  • 5 plates of 96 wells
  • 1 plate of 96 wells
Description: Enzyme-linked immunosorbent assay based on the Competitive Inhibition method for detection of General Polyethylene Glycol (PEG) in samples from serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids with no significant corss-reactivity with analogues from other species.

ELISA Kit for Polyethylene Glycol (PEG)

CEX163Ge 96Т
EUR 900

Polyethylene Glycol (PEG)

abx085411-335kDa55kg 3.35 kDa; 5.5 kg
EUR 292.8

General Polyethylene Glycol ELISA Kit (PEG)

RK00701 96 Tests
EUR 687.6

POLYETHYLENE GLYCOL (PEG-3350)

P714 1KG
EUR 204.27

POLYETHYLENE GLYCOL (PEG-1500)

P725 1KG
EUR 244.91

POLYETHYLENE GLYCOL (PEG-8000)

P741 1KG
EUR 41.15

PEG 3350 (Polyethylene Glycol)

41600003-1 1 kg
EUR 79.43

PEG 3350 (Polyethylene Glycol)

41600003-2 5 kg
EUR 331.75

PEG 1000 (Polyethylene Glycol)

41600040-1 500 mL
EUR 27.17

PEG 1000 (Polyethylene Glycol)

41600040-2 4 L
EUR 90.31

PEG 1000 (Polyethylene Glycol)

41600040-3 1 L
EUR 40.72

PEG 4000 (Polyethylene Glycol)

41600044-1 500 g
EUR 33.86

PEG 4000 (Polyethylene Glycol)

41600044-2 1 kg
EUR 63.14

PEG 4000 (Polyethylene Glycol)

41600044-3 2.5 kg
EUR 118.04

PEG 8000 (Polyethylene Glycol)

41600048-1 500 g
EUR 27.17

PEG 8000 (Polyethylene Glycol)

41600048-2 1 kg
EUR 51.43

PEG 8000 (Polyethylene Glycol)

41600048-3 2.5 kg
EUR 90.14

PEG 6000 (Polyethylene glycol)

41600211-1 500 g
EUR 31.01

PEG 6000 (Polyethylene glycol)

41600211-2 1 kg
EUR 54.43

PEG 6000 (Polyethylene glycol)

41600211-3 2.5 kg
EUR 116.62

PEG 20000 (Polyethylene glycol)

40000034-1 100 g
EUR 196.92

PEG 4000 (Polyethylene glycol)

PB0431 500g
EUR 75.66

PEG 6000 (Polyethylene glycol)

PB0432 500g
EUR 75.66

PEG 8000 (Polyethylene glycol)

PB0433 500g
EUR 75.66

Polyethylene Glycol (PEG) CLIA Kit

20-abx490560
  • Ask for price
  • Ask for price
  • Ask for price
  • 10 × 96 tests
  • 5 × 96 tests
  • 96 tests

Polyethylene Glycol (PEG) CLIA Kit

EKN53610-48T 48T
EUR 589.68

Polyethylene Glycol (PEG) CLIA Kit

EKN53610-5x96T 5x96T
EUR 4001.4

Polyethylene Glycol (PEG) CLIA Kit

EKN53610-96T 96T
EUR 842.4

Polyethylene Glycol (PEG) CLIA Kit

EKU12498-48T 48T
EUR 869.4

Polyethylene Glycol (PEG) CLIA Kit

EKU12498-5x96T 5x96T
EUR 5899.5

Polyethylene Glycol (PEG) CLIA Kit

EKU12498-96T 96T
EUR 1242

Polyethylene Glycol (PEG) (BSA)

abx651925-5mg 5 mg
EUR 575

Polyethylene Glycol (PEG) (OVA)

abx651926-100g 100 µg
EUR 1800

Polyethylene Glycol (PEG) (OVA)

abx651926-10g 10 µg
EUR 475

Polyethylene Glycol (PEG) (OVA)

abx651926-50g 50 µg
EUR 575

Polyethylene Glycol 8000 [PEG 8000]

A3631-1KG 1KG
EUR 35.2
Description: Biotechnology

Polyethylene Glycol 8000 [PEG 8000]

A3631-500G 500G
EUR 22
Description: Biotechnology

ELISA kit for General PEG (Polyethylene Glycol)

ELK8264 1 plate of 96 wells
EUR 446.4
Description: A competitive Inhibition ELISA kit for detection of Polyethylene Glycol from General in samples from blood, serum, plasma, cell culture fluid and other biological fluids.

Polyethylene Glycol (PEG) Antibody

20-abx132170
  • Ask for price
  • Ask for price
  • Ask for price
  • Ask for price
  • Ask for price
  • 100 ug
  • 10 ug
  • 1 mg
  • 200 ug
  • 50 ug

Polyethylene Glycol (PEG) Antibody

abx021053-100ug 100 ug
EUR 1045.2

Polyethylene Glycol (PEG) Antibody

abx021054-100ug 100 ug
EUR 1045.2

Polyethylene Glycol (PEG) Antibody

GWB-T00389 100ug Ask for price

Polyethylene Glycol (PEG) Antibody

abx132170-100tests 100 tests
EUR 287.5

CLIA Kit for Polyethylene Glycol (PEG)

CCX163Ge 96Т
EUR 1080

PEG Antibody / Polyethylene Glycol

R20194-100UG 100ug
EUR 415.65
Description: This recombinant PEG antibody reacts to the methoxy group of Polyethylene glycol (PEG). It is specific for methoxypoly(ethylene glycol).

PEG Antibody / Polyethylene Glycol

R20194BTN-50UG 50ug
EUR 415.65
Description: This recombinant PEG antibody reacts to the methoxy group of Polyethylene glycol (PEG). It is specific for methoxypoly(ethylene glycol).

Polyethylene Glycol (PEG) Protein (BSA)

20-abx651925
  • Ask for price
  • Ask for price
  • Ask for price
  • Ask for price
  • Ask for price
  • 100 ug
  • 10 ug
  • 1 mg
  • 200 ug
  • 50 ug

Polyethylene Glycol (PEG) Protein (OVA)

20-abx651926
  • Ask for price
  • Ask for price
  • Ask for price
  • Ask for price
  • Ask for price
  • 100 ug
  • 10 ug
  • 1 mg
  • 200 ug
  • 50 ug

BSA Conjugated Polyethylene Glycol (PEG)

CPX163Ge11 10ug
EUR 140

BSA Conjugated Polyethylene Glycol (PEG)

4-CPX163Ge11
  • Ask for price
  • Ask for price
  • Ask for price
  • Ask for price
  • Ask for price
  • Ask for price
  • Ask for price
  • 100 ug
  • 10ug
  • 1 mg
  • 200 ug
  • 500 ug
  • 50ug
  • 5 mg
Description: Recombinant Pan-species Polyethylene Glycol expressed in: E.coli

OVA Conjugated Polyethylene Glycol (PEG)

CPX163Ge21 10ug
EUR 140

OVA Conjugated Polyethylene Glycol (PEG)

4-CPX163Ge21
  • Ask for price
  • Ask for price
  • Ask for price
  • Ask for price
  • Ask for price
  • Ask for price
  • Ask for price
  • 100 ug
  • 10ug
  • 1 mg
  • 200 ug
  • 500 ug
  • 50ug
  • 5 mg
Description: Recombinant Pan-species Polyethylene Glycol expressed in: E.coli

BSA Conjugated Polyethylene Glycol (PEG)

RPU55136-100ug 100ug
EUR 431.2

BSA Conjugated Polyethylene Glycol (PEG)

RPU55136-1mg 1mg
EUR 1911

BSA Conjugated Polyethylene Glycol (PEG)

RPU55136-50ug 50ug
EUR 336

OVA Conjugated Polyethylene Glycol (PEG)

RPU55137-100ug 100ug
EUR 431.2

OVA Conjugated Polyethylene Glycol (PEG)

RPU55137-1mg 1mg
EUR 1911

OVA Conjugated Polyethylene Glycol (PEG)

RPU55137-50ug 50ug
EUR 336

Polyethylene Glycol (PEG) Antibody (Biotin)

abx021052-005mg 0.05 mg
EUR 978

Cetirizine Polyethylene Glycol (PEG) Ester

C281050 100mg
EUR 167
Description: 1509941-93-8

Polyethylene Glycol (PEG) Polyclonal Antibody

CAU30011-100ul 100ul
EUR 267.8

Polyethylene Glycol (PEG) Polyclonal Antibody

CAU30011-200ul 200ul
EUR 334.3

Polyethylene Glycol ELISA Kit

ECP7920 96 Tests
EUR 713

Polyethylene Glycol (PEG) Magnetic Luminex Assay Kit

LKU607349-96T 96T
EUR 1242

Polyclonal Antibody to Polyethylene Glycol (PEG)

PAX163Ge01 100ul
EUR 279

Polyethylene glycol 1500

GK2627-1 1
EUR 31.7

Polyethylene glycol 1500

GK2627-100 100
EUR 14.8

Polyethylene glycol 1500

GK2627-100G 100 g
EUR 52.8

Polyethylene glycol 1500

GK2627-1KG 1 kg
EUR 74.4

Polyethylene glycol 1500

GK2627-500 500
EUR 19

Polyethylene glycol 1500

GK2627-500G 500 g
EUR 58.8

Polyethylene glycol 4000

GX6931-1 1
EUR 31.7

Polyethylene glycol 4000

GX6931-100 100
EUR 14.8

Polyethylene glycol 4000

GX6931-100G 100 g
EUR 52.8

Polyethylene glycol 4000

GX6931-1KG 1 kg
EUR 74.4

Polyethylene glycol 4000

GX6931-500 500
EUR 19

Polyethylene glycol 4000

GX6931-500G 500 g
EUR 58.8

Polyethylene glycol 1000

GC0081-100 100
EUR 15.9

Polyethylene glycol 1000

GC0081-100G 100 g
EUR 55.2

Polyethylene glycol 8000

GC0902-1 1
EUR 46.8

Polyethylene glycol 8000

GC0902-100 100
EUR 18.2

Coarse grained simulation of the aggregation and structure control of polyethylene nanocrystals 

Polyethylene (PE) telechelics with carboxylate functional groups at both ends have been shown to assemble into hexagonal nanocrystal platelets with a height defined by their chain length in basic CsOH-solution. In this coarse grained (CG) simulation study we show how properties of the functional groups alter the aggregation and crystallization behavior of those telechelics.

Systematic variation of the parameters of the CG model showed that important factors which control nanoparticle stability and structure are the PE chain length and the hydrophilicity and the steric demand of the head groups.

To characterize the aggregation process we analyzed the number and size of the obtained aggregates as well as intramolecular order and intermolecular alignment of the polymer chains. By comparison of CG and atomistic simulation data, it could be shown that atomistic simulations representing different chemical systems can be emulated with specific, different CG parameter sets.

Thus, the results from the (generic) CG simulation models can be used to explain the effect of different head groups and different counterions on the aggregation of PE telechelics and the order of the obtained nanocrystals.

Modelling the visual response to an OUReP retinal prosthesis with photoelectric dye coupled to polyethylene film 

Objective: Retinal prostheses have been developed to restore vision in blind patients suffering from diseases like retinitis pigmentosa. 

Approach: A new type of retinal prosthesis called the Okayama University-type Retinal Prosthesis (OUReP) was developed by chemically coupling photoelectric dyes to a polyethylene film surface. The prosthesis works by passively generating an electric potential when stimulated by light. However, the neurophysiological mechanism of how OUReP stimulates the degenerated retina is unknown. 

Main results: Here, we explore how the OUReP affects retinal tissues using a finite element model to solve for the potential inside the tissue and an active Hodgkin-Huxley model based on rat vision to predict the corresponding retinal bipolar response. 

Significance: We show that the OUReP is likely capable of eliciting responses in retinal bipolar cells necessary to generate vision under most ambient conditions.

Chitosan-Functionalized Recycled Polyethylene Terephthalate Nanofibrous Membrane for Sustainable On-Demand Oil-Water Separation

 The preservation of marine ecosystems is one of the most severe challenges at present. In particular, oil-water separation from oil spills and oily wastewater is important. For this reason, a low-cost, effective, and sustainable polymeric solution is in high demand. In this work, a controlled-wettability membrane for selective separation of oil-water mixtures and emulsions is developed. The nanofibrous membrane is prepared via a facile and cost-effective electrospinning technique using environmentally sustainable materials, such as recycled polyethylene terephthalate and chitosan.

The effect of different concentrations of chitosan on the morphology, chemical composition, mechanical properties, wettability, and separation performance of the membrane is evaluated. The membranes exhibited underoil superhydrophobic and underwater superoleophobic behavior, which is essential to perform the selective separation. In fact, the designed filter has competitive antifouling properties (oil intrusion pressure > 45 kPa) and showed high heavy- and light-oil/water separation efficiencies (>95%) both for emulsions and immiscible mixtures.

In vitro bio-interaction responses and hemocompatibility of Nano-based Linear Low-Density Polyethylene Polymer Embedded with Heterogeneous TiO 2/ZnO Nanocomposites for biomedical applications 

An innovative nano-base polymer that scavenges radicals and reactive oxygen species exhibits potential antibacterial properties, which are crucial in the biomedical field, particularly in reducing nosocomial infections. However, the safety of this nano-based polymer, which has direct contact with the human system, has not been fully understood. The present study investigated the cytocompatibility and hemocompatibility responses of linear low-density polyethylene polymer (LLDPE) embedded with difference ratios of heterogeneous TiO2/ZnO nanocomposites.

Exposure of the blood and fibroblast cells to LLDPE/100Z and LLDPE/25T75Z/10% nanocomposite films for 48 and 72 h decreased their viability by less than 40%, compared with LLDPE, LLDPE/100T and LLDPE/25T75Z/5% nanocomposite films. It also presented possible cellular damage and cytotoxicity, which was supported by the findings from the significant release of extracellular lactate dehydrogenase (LDH) profiles and cell survival assay Further observation using an electron microscope revealed that LLDPE films with heterogeneous 25T75Z/5% promoted cell adhesion.

Moreover, no hemolysis was detected in all ratios of heterogeneous TiO2/ZnO nanocomposite in LLDPE film as it was less than 0.2%, suggesting that these materials were hemocompatible. This study on LLDPE film with heterogeneous TiO2/ZnO nanocomposites demonstrated favorable biocompatible properties that were significant for advanced biomedical polymer application in a hospital setting.

Synthesis of novel polymeric nanoparticles (methoxy-polyethylene glycol-chitosan/hyaluronic acid) containing 7-ethyl-10-hydroxycamptothecin for colon cancer therapy: in vitro, ex vivo and in vivo investigation 

  • The goal of the current study was to target 7-ethyl-10-hydroxycamptothecin (SN38) orally to colon tumours by synthesizing a targeting polymer. To achieve the optimum delivery for SN38, initially methoxy-polyethylene glycol (mPEG)-chitosan was synthesized and then nanoparticles were developed through ionic gelation between mPEG-chitosan and hyaluronic acid as a ligand for cell-surface glycoprotein CD44 receptor.
  • The SN38 was loaded in nanoparticles (SN38-NPs) using the non-covalent physical adsorption method. The size of the optimized SN38-NPs was 226.7 nm, encapsulation efficiency was 89.23% and drug content was 7.98 ± 0.54% in the optimum formulation. The attachment of mPEG to chitosan was confirmed by proton nuclear magnetic resonance.
  • The results of differential scanning calorimetry and Fourier transforms infra-red analysis indicated that SN38 existed in amorphous form and functional groups of SN38 protected in the formulations which could be a sign of suitable encapsulation of SN38 in SN38-NPs. In vitro study indicated that SN38-NPs were more potent against the cancer cells than free SN38.
  • The cellular uptake of SN38-NPs improved up to 1.6-fold against human colorectal adenocarcinoma (Caco-2) cells. Moreover, SN38-NPs remarkably demonstrated superior anti-tumor efficacy in contrary to pure SN38. This suggests the advantage of SN38-NPs as a potent oral drug carrier which could be further explored for clinical investigations.

In-Plane Shear Strength of Single-Lap Co-Cured Joints of Self-Reinforced Polyethylene Composites

 The present study introduces the analysis of single-lap co-cured joints of thermoplastic self-reinforced composites made with reprocessed low-density polyethylene (LDPE) and reinforced by ultra-high-molecular-weight polyethylene (UHMWPE) fibers, along with a micromechanical analysis of its constituents. A set of optimal processing conditions for manufacturing these joints by hot-press is proposed through a design of experiment using the response surface method to maximize their in-plane shear strength by carrying tensile tests on co-cured tapes.

Optimal processing conditions were found at 1 bar, 115 °C, and 300 s, yielding joints with 6.88 MPa of shear strength. The shear failure is generally preceded by multiple debonding-induced longitudinal cracks both inside and outside the joint due to accumulated transversal stress. This composite demonstrated to be an interesting structural material to be more widely applied in industry, possessing extremely elevated specific mechanical properties, progressive damage of co-cured joints (thus avoiding unannounced catastrophic failures) and ultimate recyclability.

Leave a Reply

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