Search
for

    GlossaryTime-of-Flight Secondary Ion Mass Spectrometry

    analytical technique identifying surface composition by measuring ejected ions' flight time

    Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) is an analytical technique used to identify the composition of surfaces at a microscopic level. It works by bombarding a sample with a focused beam of ions, causing secondary ions to be ejected from the surface. These ejected ions are then measured based on their time of flight, which allows for the determination of their mass and, consequently, the identification of the elements and molecules present on the surface. This method is highly sensitive and can provide detailed chemical information about the outermost layers of a material.

    Related Terms

    Sort by

    Community Join

    30 / 1000+ results

      community Physician here AMA – 30M oral Fin 1-1.25 mg daily

      in Update  47 upvotes 3 years ago
      Hair loss treatments, specifically the use of finasteride, microneedling and potentially oral minoxidil. People discussed their experiences with finasteride, its effects on sexual behaviors, as well as potential solutions such as tadalafil or using other growth factor signal peptides for hope in curing male pattern baldness.

      community It’s time for total war on hair loss.

      in Treatment  26 upvotes 3 years ago
      A user's experience with hair loss, their attempts to treat it using topical minoxidil and finasteride, and other suggested treatments such as oral minoxidil and finasteride. Replies included advice against wasting time or money on scalp massages or oils.

      community Hairloss has destroyed my Life completely

      in Chat  339 upvotes 10 months ago
      A young person is distressed about rapid hair loss despite using finasteride and recently starting oral minoxidil. Many suggest continuing treatment, considering dutasteride, and seeking therapy for mental health support.
      I know I’m cooked but wouldn’t mind some guidance

      community I know I’m cooked but wouldn’t mind some guidance

      in General  340 upvotes 6 months ago
      The user is experiencing significant hair loss and is considering treatments like minoxidil, finasteride, and possibly a hair transplant. They are advised to consult a dermatologist and consider oral minoxidil and dutasteride, while being aware of potential side effects and the need for ongoing treatment.

      community Why did you move back to finasteride?

      in Treatment  42 upvotes 1 year ago
      Some users choose finasteride over dutasteride due to fewer side effects and cost, while others find dutasteride more effective despite its side effects. Many combine treatments like minoxidil, finasteride, and dutasteride, adjusting based on personal experiences and side effects.

      community My experience with Harmony Clinic in Cancun, MX

      in Transplants  42 upvotes 4 years ago
      A user had a positive experience with affordable FUE hair transplants at Harmony Clinic in Cancun, Mexico, noting professionalism and good results despite minor issues. The clinic advised against using Minoxidil and Finasteride, and the user was satisfied with the initial results, planning to update progress at 12 months post-op.

      community It's crazy how it's 2018 and the only hair loss treatments we have feature undesirable side effects and/or aren't even effective for many people.

       132 upvotes 7 years ago
      Hair loss treatments, including minoxidil, dermarolling, finasteride, dutasteride, hair transplants, hair systems, and shaving the head. The conversation covers various opinions on these treatments and mentions possible side effects as well as alternatives like wigs, vitamins, and lifestyle changes. The post expresses disappointment that there has been no major breakthrough in the field of hair loss treatments despite decades of research.

      community DHT is about to get smashed ….

      in Update  803 upvotes 1 year ago
      The conversation discusses hair loss treatments like topical finasteride with minoxidil, oral dutasteride, and essential oils. Oral treatments like dutasteride and finasteride are seen as more effective, though some prefer topicals to avoid side effects.

      community Roughly 1.5 years progress. Dut, Fin, Minox, RU.

      in Progress Pictures  801 upvotes 3 years ago
      A user's progress with treatments for hair loss, including Dutasteride, Finasteride, Minoxidil, and RU. Other members of the conversation provided tips such as using Microneedling and Tretinoin to increase regrowth and wounding areas of the scalp that are thinning in order to fill them in.

      community Bald groom beaten over fake hair.

      in Satire  881 upvotes 2 years ago
      A bald groom was beaten by the family of the bride for wearing a wig. The conversation discusses the cultural stigma around baldness in India and the consequences of deception in arranged marriages.

      community I have tried many treatments but it's getting worse. 23M.

      in Treatment  84 upvotes 1 year ago
      A 23-year-old male experiencing worsening hair loss has tried topical Minoxidil, Finasteride, Progesterone, Hydrocortisone butyrate, and Ketoconazole. He is considering switching to oral Finasteride due to concerns about side effects and lack of improvement.

      community 5 Months Results - Fin/Min/Keto Shampoo/Dermapen

      in Progress Pictures  717 upvotes 3 years ago
      Treatments for hair loss, including using finasteride and minoxidil regularly, together with keto shampoo and dermapen; the user's progress since starting treatment five months ago; and discussion of potential side effects.

      community Giving up on ever feeling comfortable in my body

      in Update  80 upvotes 4 years ago
      The user has been using finasteride, dutasteride, and RU58841 for hair loss without success and feels extremely uncomfortable with their appearance, including being bald and short. They express deep unhappiness and social isolation. Suggestions from others include adopting stoicism, focusing on personal development, considering a hair system, improving fashion, working out, and seeking therapy for mental health.

      community Thoughts on Finasteride and Sexual Side Effects

      in Finasteride  51 upvotes 6 years ago
      A user discusses starting finasteride for hair loss despite concerns about potential sexual side effects, emphasizing the psychological factors involved. Other users share mixed experiences, with some reporting no side effects and others experiencing issues.

      community FINASTRIDE and switch to DUTASTRIDE, my experience

      in Progress Pictures  145 upvotes 1 year ago
      The user shared their experience with Finasteride and Dutasteride for hair loss. They initially had success with Finasteride but switched to Dutasteride after experiencing shedding, which continued, and are now considering a hair transplant.

      community How do you deal with balding in your 20s?

      in Chat  229 upvotes 6 months ago
      Hair loss in your 20s, with treatments like minoxidil, finasteride, dutasteride, and hair transplants discussed. Opinions vary between accepting baldness and pursuing aggressive treatments.

      community Why do we get bald from evolutionary perspective

      in Chat  213 upvotes 10 months ago
      Baldness is not an evolutionary disadvantage because it occurs after reproductive age. Treatments like Minoxidil and Finasteride are used for androgenetic alopecia but don't address the root cause.

      community The "I just want hair until im 30" cope.

      in Chat  220 upvotes 1 year ago
      Participants want to maintain hair until at least age 30, using treatments like finasteride, dutasteride, and minoxidil. Hair loss remains a concern, with some considering hair transplants.