Question: Place LPRF membranes n3 on a filter paper for ease of handling and cut into rectangular samples measuring 10 mm x 25 mm using a surgical scalpel
Please fix the punctuation.
Fixed: [Place L-PRF membranes (n=3) on a filter paper for ease of handling and cut into rectangular samples measuring (10 mm x 25 mm) using a surgical scalpel.]

Question: At this High School she was turned on to mathematics by her study of geometry
Please fix the punctuation.
Fixed: [At this High School she was turned on to mathematics by her study of geometry.]

Question: Made of 100 stonewashed cotton which gives you nice vintage look
Please fix the punctuation.
Fixed: [Made of 100% stonewashed cotton which gives you nice vintage look.]

Question: In a perfect world every believer would dutifully study the Bible 2 Timothy 215 in prayerful dependence upon the Holy Spirits illumination
Please fix the punctuation.
Fixed:
[In a perfect world, every believer would dutifully study the Bible (2 Timothy 2:15) in prayerful dependence upon the Holy Spirit's illumination.]