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5 protocols using milli q machine

1

Lipid Profiling by LC-MS/MS

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A LC‐30AD UPLC chromatography system (Shimadzu Corporation) coupled with TripleTOF 5600 (SCIEX) was used for injection and analysis of lipids. AnalystR TF 1.6 and MultiQuantTM data acquisition software (AB SCIEX), PeakView 2.0 (AB SCIEX) and LipidView 2.0 (AB SCIEX) data analysis software were used in experiment and data analysis. Two mobile phases A and B solution were prepared according to the formula water:methanol:acetonitrile:300 mM ammonium acetate = 20:20:20:1 (v/v/v/v) and isopropanol:methanol:300 mM ammonium acetate = 180:20:3 (v/v/v), respectively. Mobile phases A and B were sonicated for 30 min using an ultrasonicator before use. All reagents were HPLC grade, and the water was obtained from the Milli‐Q machine (Millipore).
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2

Cloning and Purification of scFv Antibody

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Restriction endonuclease was from New England Biolabs Japan (Tokyo, Japan). The In-Fusion HD cloning kit, pGro7 chaperonine plasmid, Talon metal affinity resin, Talon disposable gravity column, and a Brevibacillus In Vivo Cloning (BIC) system were from Takara Bio (Otsu, Japan). The KOD Plus mutagenesis kit was from Toyobo Biochemicals (Osaka, Japan). The PureYield Plasmid Miniprep System and Wizard SV Gel and PCR Clean-Up System were from Promega (Tokyo, Japan). MicroSpin G-25 Columns were from GE Healthcare (Amersham, UK). The Luria-Bertani medium was from Beckton-Dickinson (Tokyo, Japan). Immunoblock was from KAC (Hyogo, Japan). 5-TAMRA C6 maleimide was from AAT Bioquest (Sunnyvale, CA, USA). Oligonucleotides and the gene for 3D5 scFv were synthesized by Eurofins Genomics (Tokyo, Japan). The sequence of primers used is summarized in Table S1. Ultrapure water was prepared using a Milli-Q machine (Millipore Japan, Tokyo, Japan). Biotinylated His6 peptide was synthesized using a PSSM-8 peptide synthesizer (Shimadzu, Kyoto, Japan). Other chemicals and reagents, unless otherwise indicated, were from Sigma-Aldrich (St. Louis, MO, USA) or Fujifilm-Wako pure chemicals (Osaka, Japan).
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3

Chitosan-based Gold Nanoparticle Synthesis

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Chitosan (CS, deacetylation > 95%) with low/medium/high (l-CS, m-CS, h-CS) average viscosity (50–100 mPa·s, 200–400 mPa·s, and >400 mPa·s, respectively) were purchased from Rhawn Reagent Co., Ltd., Shanghai, China. Acetic acid and chloroauric acid trihydrate (HAuCl4·3H2O, > 99.9%) were purchased from Aladdin Reagent Co., Ltd., Shanghai, China. Deionized water (18.2 MΩ·cm−1) was produced by a Millipore Milli-Q machine.
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4

Lysozyme Purification and Salt Effects

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All materials used in the present work were the same as used in Kreusser et al. [36 ]. Hen egg white lysozyme (Lys, = 14.3 kDa) with a purity over 90% was obtained from Sigma‐Aldrich and the mixed‐mode resin Toyopearl MX‐Trp‐650M, a methacrylic polymer‐based resin with a tryptophan ligand and an ion exchange capacity of 0.08–0.15 eq/L as specified by the supplier [42 ], was obtained from Tosoh Bioscience. The salts for the preparation of the buffers, namely, monosodium phosphate (NaH2PO4·2H2O) and disodium phosphate (Na2HPO4·2H2O), and the salts that were studied, namely, sodium chloride (NaCl), sodium sulfate (Na2SO4), ammonium chloride (NH4Cl), and ammonium sulfate ((NH4)2SO4), were of analytical grade. All salts were obtained from Carl Roth, except for ammonium chloride which was obtained from Bernd Kraft. For the adjustment of the pH value of the buffer and salt solutions, 1 N sodium hydroxide (NaOH) and 1 N hydrochloric acid (HCl) were used, which were obtained from Carl Roth. The high‐purity water used as solvent was produced with a Milli‐Q machine from Merck Millipore.
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5

Isotopic Glyphosate Labeling for Metabolism

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2-13C,15N-glyphosate (99 atom% 13C, 98 atom% 15N) and unlabeled glyphosate (> 99% purity) were purchased from Sigma-Aldrich (St. Louis, USA) and used for the incubation experiment. AMPA and sarcosine (purity > 98%) were both obtained from Sigma-Aldrich, and glycine (J.T.Baker™) was obtained from Avantor (Deventer, Netherland). All other chemicals were of analytical grade and purchased from Sigma-Aldrich. MilliQ water (18 MΩ) was produced from a Milli-Q machine (Merck, Darmstadt, Germany). Chemicals used for LC-MS analysis were listed in Text S1, S 1.1.
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