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N n dimethylformamide dmf trifluoroacetic acid tfa n methyl 2 pyrrolidone nmp

Manufactured by Biosolve
Sourced in Netherlands

N,N-dimethylformamide (DMF), trifluoroacetic acid (TFA), and N-methyl-2-pyrrolidone (NMP) are chemical solvents commonly used in various laboratory applications. DMF is a polar aprotic solvent, TFA is a strong organic acid, and NMP is a polar solvent. These substances have specific physicochemical properties that make them useful for specific laboratory procedures, but a detailed description of their intended use is not provided to maintain an unbiased and factual approach.

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5 protocols using n n dimethylformamide dmf trifluoroacetic acid tfa n methyl 2 pyrrolidone nmp

1

Synthesis of Hyaluronic Acid Conjugates

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Hyaluronic acid (MW = 100–1250 kDa) was obtained from Contipro Biotech s.r.o (Dolni Dobrouc, Czech Republic). 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC) and Triethoxysilane (TES) from Sigma Aldrich (Steinheim, Germany), and ethanol from VWR Chemicals Prolab (Fontenay-sous-Bois, France). The Rink Amide MBHA resin and the 9-fluorenylmethoxycarbonyl (Fmoc) protected amino acids were purchased from Novabiochem (Merck KGaA, Darmstadt, Germany). The coupling reagents 2-(1H-Benzotriazole-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate (HBTU) and 1-Hydroxybenzotriazole (HOBt) from Advanced Biotech (Seveso, MI, Italy). N,N-diisopropylethylamine (DIEA) and piperidine were purchased from Biosolve (Leenderweg, Valkenswaard, The Netherlands). N,N-dimethylformamide (DMF), trifluoroacetic acid (TFA), N-methyl-2-pyrrolidone (NMP) and dichloromethane (DCM) were from Biosolve (Leenderweg, Valkenswaard, The Netherlands). Acetonitrile and TFA were from Sigma-Aldrich, Saint Louis, MO, USA.
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2

Solid-Phase Peptide Synthesis Protocol

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The solid support, Rink Amide MBHA resin, was from Novabiochem (Merck KGaA, Darmstadt, Germany). The Fluorenylmethyloxycarbonyl (Fmoc) protected amino acids were from Novabiochem. The coupling reagents 2-(1H-Benzotriazole-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate (HBTU), 1-[Bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium 3-oxid hexafluorophosphate (HATU), 1-Hydroxybenzotriazole (HOBt) and 3H-[1,2,3]-Triazolo[4,5-b]pyridin-3-ol (HOAt) were from Advanced Biotech (Seveso, Italy). N,N-diisopropylethylamine (DIEA) and piperidine were from Biosolve (Leenderweg, Valkenswaard, The Netherlands). 2,4,6-Collidine was from Janssen Chimica NV (Beerse, Belgium). Triethoxysilane (TES) was from Sigma-Aldrich (Steinheim, Germany). Solvents such as N,N-dimethylformamide (DMF), trifluoroacetic acid (TFA), N-methyl-2-pyrrolidone (NMP) and dichloromethane (DCM) were from Biosolve. Increlex (10 mg/mL IGF-1 solution) was from Ipsen Pharma (Boulogne-Billancourt, France).
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3

Peptide Synthesis and Electrospun Scaffolds

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The solid support (resin Rink-Amide MBHA) and the Fmoc protected amino acids were from Novabiochem (Merck KGaA, Darmstadt, Germany). The coupling reagents 2-(1H –Benzotriazole-1-yl) -1,1,3,3-tetramethyluronium hexafluorophosphate (HBTU) and 1-Hydroxybenzotriazole (HOBt) were from Advanced Biotech (Seveso, MI, Italy). N,N-diisopropylethylamine (DIEA) and piperidine were from Biosolve (Leenderweg, Valkenswaard, Netherlands). Triethoxysilane (TES), were from Sigma-Aldrich (Steinheim, Germany). Solvents such as N,N-dimethylformamide (DMF), trifluoroacetic acid (TFA), N-methyl-2-pyrrolidone (NMP) and dichloromethane (DCM) were from Biosolve (Leenderweg, Valkenswaard, Netherlands). The solvent for electrospinning solutions hexafluoroisopropanol (HFIP) was from Alfa Aesar (Ward Hill, MA, USA). Poly-ε-caprolactone, average Mn ca. 60,000 (PCL) used to produce the electrospun scaffolds was from Aldrich (St. Louis, MO, USA).
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4

Peptide Synthesis Using Rink Amide Resin

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The solid support, Rink Amide MBHA resin, was purchased from Novabiochem (Merck KGaA, Darmstadt, Germany). The Fmoc protected amino acids were provided by Novabiochem. The coupling reagents 2-(1H-Benzotriazole-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate (HBTU), 1-[Bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium 3-oxid hexafluorophosphate (HATU), 1-Hydroxybenzotriazole (HOBt) and 3H-[1,2,3]-Triazolo[4,5-b]pyridin-3-ol (HOAt) were supplied by Advanced Biotech (Seveso, MI, Italy). N,N-diisopropylethylamine (DIEA) and piperidine were purchased from Biosolve (Leenderweg, Valkenswaard, The Netherlands). 2,4,6-Collidine was from Janssen Chimica NV (Beerse, Belgium). Triethoxysilane (TES) and pyridoxal-5-phosphate (PLP) were from Sigma-Aldrich (Steinheim, Germany). Solvents such as N,N-dimethylformamide (DMF), trifluoroacetic acid (TFA), N-methyl-2-pyrrolidone (NMP) and dichloromethane (DCM) were from Biosolve. Increlex (10 mg/mL IGF-1 solution) was from Ipsen Pharma (Boulogne-Billancourt, France).
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5

Peptide Synthesis and Polymer Scaffold Fabrication

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The solid support resins Sasrin and Amide MBHA were from Novabiochem (Merck KGaA, Darmstadt, Germany). The Fmoc protected amino acids were from Novabiochem (Merck KGaA, Darmstadt, Germany). The coupling reagents 2-(1H-benzotriazole-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate (HBTU) and 1-hydroxybenzotriazole (HOBt) were from Advanced Biotech (Seveso, MI, Italy). N,N-Diisopropylethylamine (DIEA) and piperidine were from Biosolve (Leenderweg, Valkenswaard, Netherlands). Triethoxysilane (TES) was from Sigma-Aldrich (Steinheim, Germany). Solvents such as N,N-dimethylformamide (DMF), trifluoroaceticacid (TFA), N-methyl-2-pyrrolidone (NMP), and dichloromethane (DCM) were from Biosolve (Leenderweg, Valkenswaard, Netherlands). Poly-ɛ-caprolactone (Mn = 60 KDa), acetonitrile, and 1,1,1-3,3,3-hexafluoro-2-propanol (HFIP) were purchased from Sigma-Aldrich (Steinheim, Germany). The copolymer poly(L-lactic acid-co-ɛ-caprolactone) (70 : 30) was purchased by PURAC biochem (Gorinchen, Holland).
Phosphate-buffered saline (PBS) tablets were purchased from Gibco Invitrogen Corp. (Paisley, UK). The Endothelial Cell Growth Medium MV2 was purchased from PromoCell GmbH (Heidelberg, Germany). Cell strainer, tissue culture-treated dishes, and fibronectin were from BD Biosciences (San Jose, CA, USA), whereas 3-(4,5-
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