Quartz ahwehwɛ, esiane wɔn piezoelectric tumi soronko nti, di dwuma titiriw wɔ mfuw pii mu. Wɔn dwumadie no fa mfiridwuma a ɛkorɔn-mfiridwuma ahodoɔ pii mu, a ɛlɛtrɔnik, nkitahodiɛ, ne ahunmu ka ho.
1.Quartz Ahwehwɛ a Ɛwosow Nneɛma
Quartz crystal oscillator de quartz crystal di dwuma sɛ resonant frequency-selective circuit no mu ade titiriw. Wɔnam quartz ahwehwɛ a wɔtwitwa no pɛpɛɛpɛ ma ɛyɛ teateaa na wɔde dade mprɛte bata wɔn ani so na ɛyɛ saa oscillator yi. Ne nnyinasosɛm a ɛde yɛ adwuma no gyina piezoelectric nkɛntɛnso a ɛne no bɔ abira so: quartz ahwehwɛ wosow wɔ mfiri kwan so wɔ anyinam ahoɔden a ɛsesa nkɛntɛnso ase. Esiane sɛ quartz ahwehwɛ biara wɔ abɔde mu wosow frequency pɔtee bi nti, resonance ba bere a anyinam ahoɔden a wɔde adi dwuma ne saa frequency yi hyia no. Saa su yi ma quartz crystals yɛ paw a eye ma high-precision resonant frequency-selective circuits. Quartz crystal oscillators, esiane sɛ ɛyɛ frequency a ɛyɛ den yiye nti, di dwuma titiriw wɔ mfiri pii mu, a nea ɛka ho ne standard frequency generators, pulse counters, ne quartz clocks.
2. Quartz Crystal Nneɛma a Ɛkari pɛ
Quartz Crystal Microbalance (QCM) yɛ adwinnade a ɛde piezoelectric tumi a ɛwɔ quartz crystal mu di dwuma de susuw nsakrae a ɛba wɔ electrode ani kɛse mu. Efi bere a wɔde bae wɔ 1960 mfe no mfiase no, abɛyɛ adwinnade a tumi wom a wɔde hu nanogram-level mass detection esiane ne nkate a ɛkorɔn yiye nti. N’adwuma nnyinasosɛm ne sɛ nsakrae a ɛba wɔ quartz ahwehwɛ electrode no ani kɛse mu no bɛdan ayɛ no frequency nsakrae a ɛba wɔ output electrical signal a ɛwɔ oscillation circuit no mu. Afei wɔde mfiri a ɛboa te sɛ kɔmputa hwehwɛ saa adeyɛ yi mu de nya susudua a ɛkorɔn-pɛpɛɛpɛ aba. Enti, quartz crystal microbalance di dwuma titiriw wɔ nnwuma pii te sɛ nnuruyɛ, nnuruyɛ adwuma, aduan, biomedicine, nneɛma a atwa yɛn ho ahyia a wɔhwɛ so, nnwuma ne asraafo mu.
3. Piezoelectric biosensor a wɔde yɛ nneɛma
(1) Piezoelectric immunosensor a ɛma nipadua no tumi ko tia nyarewa
Nnyinasosɛm a ɛyɛ adwuma wɔ piezoelectric immunosensor no mu ne sɛ ɛbɛsiesie antibodies anaa antigens wɔ quartz crystal no ani na ɛde affinity reaction pɔtee a ɛda antigen ne antibody ntam no adi dwuma. Sɛ antigen anaa antibody a ɛsɛ sɛ wɔsusu no ne fixed recognition substance no di nkitaho na ɛma adsorption pɔtee bi ba a, ahwehwɛ no ani mass load bɛkɔ soro sɛnea ɛfata. Wobetumi ahwɛ nsakrae yi denam mpɛn dodow a sensor no sesa so, na wɔnam saayɛ so ahu antibody anaa antigen dodow a wɔagye no.
(2) Piezoelectric awosu mu nkwaadɔm sensor
Nnyinasosɛm titiriw a ɛwɔ piezoelectric gene sensor a wɔde hu DNA ne sɛ wobesiesie DNA nhwehwɛmu a ɛwɔ nhama biako-a wɔ ahwehwɛ no ani. Sɛ DNA ntoatoaso a ɛsɛ sɛ wohu no boa no a, hybridization reaction ba wɔ chip no so ma ɛyɛ DNA a ɛwɔ nhama abien-. Saa adeyɛ yi bɛma ahwehwɛ dodow akɔ soro na nsakrae aba wɔ soro viscoelasticity mu. Wobetumi de frequency nsakrae a ɛba sensor ne network analysis no mu asusuw nsakrae yi.