160-words-for-your-materials-and-methods

We all know that feeling…writing a manuscript and using the same words over and over again. Sometimes it’s really difficult to think of alternatives, especially when you’re trying to describe complex scientific protocols in the materials and methods section.


We have put together a huge list of useful words for materials and methods sections. Originally we intended to list at least 100, but we just kept adding more and more, and we’re not finished yet! The list is currently over 160 words long, and still growing.

160-words-for-your-materials-and-methods

Both UK and US English spelling variations are provided in the list. All of the words are listed in the past tense, as this is normally the correct style for the materials and methods section. Each word has a short example of correct use, but most words can be used in a variety of other ways.

1. Activated: The reaction was activated by incubation at 100 °C


2. Added: …5 mL NaOH was added to the solution


3. Adjusted: …and the pH was adjusted to 7.5


4. Air-dried: …and the samples were air-dried for 24 h


5. Allocated: The animals were randomly allocated to three groups


6. Amplified: DNA was amplified using Taq polymerase


7. Analyzed / analysed: All data was analysed using the Student’s t-test


8. Anesthetised /anesthetized: The rats were anesthetised using ketamine


9. Applied: …and primary antibody was applied


10. Assayed: Luciferase activity was assayed using the Dual Luciferase assay kit


11. Autoclaved: The solutions were autoclaved at 121 °C for 20 min


12. Baked: ….the slides were baked at 200 °C for 1 h


13. Blocked: The membrane was blocked in TBS-T containing 5% non-fat milk


14. Boiled: The sample was boiled at 95°C for 5 min


15. Caged: The rats were caged individually


16. Calculated: The chlorophyll content was calculated as described in [21].


17. Centrifuged: The sample was centrifuged at 13,000 rpm for 15 min


18. Chilled: … chilled at 4 °C for 24 h, ….


19. Classified: The patients were classified into two groups based on p53 expression


20. Coated: The slides were coated with 3% APES in methanol


21. Collected: The cells were collected by centrifugation


22. Combined: The samples were combined for analysis


23. Constructed: The pEDGT vector was constructed using site-directed mutagenesis


24. Containing: …, washed in PBS containing 1% Tween-20


25. Cooled: The reaction was cooled


26. Correlated: The levels of P53 expression were correlated with EGFR expression


27. Counterstained: …. and counterstained with haematoxylin.


28. Covered: …. and leaves were covered with foil


29. Created: The pEYTH plasmid was created by PCR


30. Cultured: E. coli were cultured overnight at 37 °C


31. Defined: Pre-diabetes was defined as an impaired glucose tolerance test in the last 6

months.


32. Denatured: The DNA was denatured at 94 °C for 15 min


33. Designed: Primers were designed to quantify p53 and EGFR


34. Detected: Antibody binding was detected using enhanced chemiluminescence


35. Determined: The rate of the reaction was determined as described by Smith et al.


36. Developed: The staining intensity was developed by incubation in 5% copper sulphate

solution


37. Dialysed / Dialyzed: The sample was dialysed against 2M NaCl


38. Diluted: The sample was diluted to a final volume of 10 ml


39. Discarded: The supernatant was discarded


40. Dissected: Tumours were dissected from the normal tissue

41. Dissolved: Ampicillin was dissolved in water


42. Donated: The plasmids and p53 antibody were donated by Prof. J Smith.


43. Dried: The leaves were dried


44. Driven: Gene expression was driven by the CMV promoter


45. Electrophoresed: The samples were electrophoresed on 12% SDS-PAGE gels


46. Eliminated: Patients with Stage IV breast cancer were eliminated from the survival

analysis


47. Elongated: The PCR product was elongated at 72 °C for 10 min


48. Embedded: The liver and kidney samples were embedded in paraffin


49. Estimated: Survival was estimated using the Kaplan-Meier method


50. Euthanized: The animals were euthanized after 24 days


51. Excised: HPRT was excised from the plasmid using Bam HI


52. Expressed: Human CRCX2 was expressed in HeLa cells


53. Extracted: DNA was extracted using the phenol:chloroform method


54. Extrapolated: The curve was extrapolated to determine the intersection of the y-axis



55. Fed: Animals were fed a high-fat diet


56. Filtered: The solution was sterile filtered at 0.2 µM


57. Fixed: The tissues were fixed in paraformaldehyde


58. Followed: …30 cycles of 94°c for 1 min, 60°c for 1 min and 72°c for 1 min, followed by

72°c for 15 min


59. Frozen: The samples were snap frozen in liquid nitrogen


60. Genotyped: The mice were genotyped using PCR


61. Graphed: The data was graphed using Microsoft Excel


62. Ground: The leaves were ground in a pestle and mortar


63. Grouped: The patients were grouped according to tumour stage


64. Harvested: Cells were harvested by scraping


65. Homogenized: The tissues were homogenised


66. Housed: Mice were housed individually under a 12 h light / dark cycle


67. Identified: Disease history was identified from medical records


68. Illuminated: The plants were illuminated using red light


69. Imaged: The sections were imaged by confocal microscopy


70. Immersed: Slides were immersed in fixative for 10 min


71. Incubated: Cells were incubated at 37 °C for 3 days


72. Indicated: The presence of fluorescent labelling indicated DNA damage


73. Infused: The drug was infused at 1 mL/min


74. Inhibited: The reaction was inhibited by addition of 2 mL of 1 M EDTA


75. Initiated: The reaction was initiated by addition of Taq Polymerase


76. Injected: The rats were injected with the drug or control saline solution


77. Inoculated: LB broth was inoculated with 100 µL bacterial supernatant and cultured for 24 h


78. Inserted: The FLOX gene was inserted downstream of the CMV promoter


79. Interrogated: The database was interrogated to identify miR-129 target genes


80. Interviewed: Patients were interviewed to collect a full medical history

81. Investigated: Gene expression was investigated using real-time PCR


82. Isolated: Plasmid DNA was isolated using standard methods


83. Labelled: Cells were labelled with a CD34 antibody


84. Loaded: The protein samples were loaded on 1% agarose gels


85. Localised / localized: Staining was localized to the nucleus


86. Lysed: Cells were lysed in RIPA buffer


87. Magnified: The samples were magnified for further analysis


88. Mated: Heterozygous male mice were mated with wild-type females


89. Measured: Gene expression was measured using real-time RT-PCR


90. Mixed: Developing solution was added, mixed and used for…


91. Modelled: The data was modelled using a system of partial differential equations


92. Neutralised / neutralized: The reaction was neutralised by addition of 5 mL of 2 M HCl


93. Normalised / normalized: The data was normalized to achieve a standard distribution


94. Observed: Cell migration was observed at 24 h, 48 h and 72 h


95. Obtained: Twenty six glioma samples were obtained from patients undergoing surgery


96. Pelleted: Cells were pelleted by centrifugation


97. Performed: Analysis was performed according to the method of Jones et al. (1996).


98. Picked: Individual colonies were picked using sterile loops


99. Plated: HeLa cells were plated in 30 mm-diameter dishes


100. Plotted: Data was plotted using SPSS software


101. Precipitated: The DNA was precipitated by addition of 15 mL isopropanol


102. Prepared: The samples were prepared as previously described (23).


103. Probed: Membranes were probed with DIG-labelled probes


104. Programmed: PCR was performed using a thermocycler programmed for …


105. Purchased: The CD34 antibody was purchased from Cell Signaling


106. Purified: The plant extract was purified using the method of Jones at al. (2005).


107. Quantified: The bands were quantified using the Gel Doc System


108. Queried: The database was queried using the following search terms:


109. Radio-labelled: Proteins were radio-labelled with P32


110. Reacted: After the enzyme and tissue had reacted, the solutions..


111. Received: All patients received MRI and CT scans


112. Recorded: The data was recorded in Excel


113. Recovered: The DNA was recovered by isopropanol precipitation


114. Recruited: Two hundred type 2 diabetes patients were recruited for this study


115. Removed: The leaves were removed 6 h after treatment


116. Represented: Using the formula of Jones et al., the gradient can be represented as x – y / t


117. Resected: The tumours were resected, then the patients…


118. Resuspended: HeLa cells were resuspended in serum-free media


119. Reverse-transcribed: Total RNA was reverse-transcribed to cDNA


120. Rinsed: The pellet was rinsed in PBS

121. Sampled: Five leaves were sampled from each tree at 3 h intervals


122. Saturated: The membranes were statured with 100% ethanol


123. Scored: Staining was scored as previously described


124. Scraped: The cells were scraped into lysis buffer


125. Sectioned: Tumour blocks were sectioned at 10 µm


126. Stained: Sections were stained using hematoxylin and eosin


127. Selected: Based on the pilot study, 200 mM cisplatin was selected for further experiments


128. Semi-quantitatively scored: Immunostaining was semi-quantitatively scored


129. Separated: Proteins were separated on using a SDS-PAGE gel


130. Shaved: The skin was shaved before surgery


131. Sized: Bands were sized using a DNA ladder


132. Soaked: The membrane was soaked in 100% methanol


133. Spread: Bacterial suspension was spread on LB agar plates


134. Staged: The patients were staged according to the WHO criteria


135. Standardised / Standardized: The assay was standardised by including the standard curve in each replicate


136. Sterilised / Sterilized: The slides were sterilised by baking at 200°C


137. Stirred: then 5 ml EDTA was added, stirred, and the solution was…


138. Stored: The solution was stored at room temperature


139. Stratified: The patients were stratified according to tumour stage


140. Subjected: Samples were subjected to Western blotting


141. Supplemented: DMEM media supplemented with 10% foetal calf serum


142. Sutured: Skin was sutured and the animals were allowed to recover


143. Swabbed: Skin was swabbed with 70% EtOH before surgery


144. Termed: The pcDNA-EGFR plasmid, termed pEGFR in this study,


145. Terminated: The reaction was terminated by addition of 5 ml EDTA


146. Tested: Our hypothesis was tested by investigating the …


147. Titrated: The solution was titrated against 2 M HCl


148. Transferred: Proteins were transferred to PVDF membrane,


149. Transformed: Data was transformed to achieve a normal distribution


150. Treated: Cells were treated with 0, 10, 20 and 30 mM 5-FU for 24 h


151. Trimmed: Frozen blocks were trimmed and sectioned


152. Undergoing: Normal tissues were obtained from patients undergoing tonsillectomy


153. Underwent: All patients received liver ultrasound and CT scans


154. Used: Leaf samples were used for DNA extraction


155. Viewed: Sections were viewed using a light microscope


156. Visualised / visualized: Staining was visualised using DAB


157. Vortexed: The solution was vortexed for 30 s


158. Washed: Sections were washed in TBS-T


159. Weighed: Leaves were weighed


160. Wetted: The drug was wetted with EtOH before it was dissolved in water

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The essential list of "Red Flags" in scientific writing:

348 words and phrases that scream "Written by ChatGPT or AI!"

The essential list of "Red Flags" in scientific writing:


348 words and phrases that scream

"Written by ChatGPT or AI!"


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