Sirivha nanoparticlesvane akasiyana optical, magetsi, uye thermal properties uye vari kuiswa muzvigadzirwa zvinobva ku photovoltaics kusvika kune biological and chemical sensors.Mienzaniso inosanganisira conductive ingi, paste uye mafirita ayo anoshandisa sirivheri nanoparticles kune yakakwira magetsi conductivity, kugadzikana, uye kuderera kwekushisa kwekushisa.Mamwe maapplication anosanganisira mamolecular diagnostics uye mafotonic zvishandiso, izvo zvinotora mukana weiyo novel optical zvimiro zveayi nanomaterials.Chishandiso chiri kuramba chichizivikanwa ndechekushandiswa kwesirivheri nanoparticles kune antimicrobial coatings, uye akawanda machira, kiyibhodhi, maronda ekupfeka, uye biomedical zvishandiso zvino zvine sirivheri nanoparticles iyo inoramba ichiburitsa yakaderera mwero weiyoni yesirivheri kuti ipe dziviriro kubva kuhutachiona.

Sirivha NanoparticleOptical Properties

Iko kuri kukura kufarira mukushandisa iyo optical zvimiro zvesirivheri nanoparticles sechinhu chinoshanda mune zvakasiyana zvigadzirwa uye masensa.Silver nanoparticles inonyatso shanda pakubata nekuparadzira chiedza uye, kusiyana nedhayi zhinji ne pigment, ine ruvara runoenderana nekukura uye maumbirwo echinhu chacho.Kudyidzana kwakasimba kwesirivheri nanoparticles nechiedza kunoitika nekuti maerekitironi ekufambisa ari pamusoro pesimbi anopindirana neanoscillation kana achifadzwa nechiedza pane chaiwo wavelengths (Mufananidzo 2, kuruboshwe).Inozivikanwa sesurface plasmon resonance (SPR), iyi oscillation inoguma nekupararira kwakasimba zvisina kujairika uye kunyudza zvinhu.Muchokwadi, sirivheri nanoparticles inogona kuve nekutsakatika kunoshanda (kuparadzira + kunyura) kuyambuka zvikamu zvinosvika gumi zvakakura kupfuura chikamu chavo chemuviri chemuchinjikwa.Iyo yakasimba yekuparadzira muchinjikwa chikamu inobvumira kuti sub 100 nm nanoparticles ionekwe nyore nyore neyakajairwa microscope.Kana 60 nm sirivheri nanoparticles yakavhenekerwa nechiedza chena inoratidzika seyakajeka yebhuruu point source scatterers pasi perima remunda maikorosikopu (Mufananidzo 2, kurudyi).Ruvara rwebhuruu rwakajeka rwakakonzerwa neSPR iyo yakakwira pa450 nm wavelength.Chinhu chakasarudzika che spherical sirivheri nanoparticles ndechekuti iyi SPR peak wavelength inogona kugadziridzwa kubva pa400 nm (violet mwenje) kusvika 530 nm (yegirini mwenje) nekushandura saizi yechidimbu uye yemuno refractive index padhuze nechikamu chepamusoro.Kunyangwe machinjo akakura eiyo SPR peak wavelength kunze munzvimbo ye infrared ye electromagnetic spectrum inogona kuwanikwa nekugadzira sirivheri nanoparticles netsvimbo kana ndiro maumbirwo.

Silver Nanoparticle Applications

Sirivha nanoparticlesari kushandiswa mumatekinoroji akawanda uye akabatanidzwa muhuwandu hwakawanda hwezvigadzirwa zvevatengi zvinotora mukana wezvavanoda zvemaziso, conductive, uye antibacterial properties.

• Diagnostic Applications: Sirivha nanoparticles inoshandiswa mumabiosensors uye akawanda assays uko sirivheri nanoparticle zvinhu zvinogona kushandiswa sebiological tag yehuwandu hwekuonekwa.
• Antibacterial Applications: Silver nanoparticles inosanganisirwa mune zvipfeko, shangu, pendi, maronda ekupfeka, midziyo, zvizorwa, uye mapurasitiki kune avo antibacterial properties.
• Conductive Applications: Silver nanoparticles inoshandiswa mumaingi ekuitisa uye yakabatanidzwa mucomposites kuwedzera kupisa uye magetsi conductivity.
• Optical Applications: Silver nanoparticles inoshandiswa kunyatsokohwa chiedza uye nekuwedzera optical spectroscopies kusanganisira simbi-enhanced fluorescence (MEF) uye pamusoro-enhanced Raman scattering (SERS).