Description:
<h1 style="margin-top:0cm"><span lang="EN-US" style="font-size:11.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman"">Introduction<o:p></o:p></span></h1><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US" style="mso-bidi-font-size:10.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman""> </span></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US">Parkinson's disease (PD) is a disease characterized bya decrease in dopamine levels due to the loss of cells that produce a substancecalled dopamine, which allows brain cells to communicate with each other (Simonet al., 2020). <o:p></o:p></span></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US">One of the most crucial dopamine receptor agonists,ropinirole hydrochloride (ROP), is an active ingredient used not only in PD butalso in restless legs syndrome, which includes symptoms such as burning,numbness, tremor, tingling, pain, cramping or spasms. ROP is a Class III drugaccording to the Biopharmaceutical Classification System (BCS) due to its highsolubility and low permeability.<o:p></o:p></span></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US">Orally disintegrating films (ODFs) have attracted alot of attention in recent years because it provides an immediate effect afterrapid dissolution, are easy to prepare, and offer ease of use for patients suchas children and the elderly (Patil and Shrivastava, 2014). <o:p></o:p></span></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US">The aim of this study is the preparation of new dosageforms compared to the commercial product containing ROP, which is used in thetreatment of PD and has limitations in use in geriatric patients due todifficulty in swallowing. </span><b><span lang="EN-US" style="mso-bidi-font-size:10.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman""><o:p></o:p></span></b></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><b><span lang="EN-US"> </span></b></p><h1 style="margin-top:0cm"><span lang="MK" style="font-size:11.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman";mso-ansi-language:MK">М</span><span lang="EN-US" style="font-size:11.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman"">aterialsand methods<o:p></o:p></span></h1><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US" style="mso-bidi-font-size:10.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman""> </span></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US">Firstly, the melting point determination, X-ray powderdiffraction (XRD) analysis, and Fourier-transformed infrared (FTIR) analysiswere performed for the purity analysis of the active substance ROP. The compatibilitystudy of the formulation components used in the preparation of ROP ODFs wasconducted by FTIR.<o:p></o:p></span></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US">Electrospun ODF formulations of ROP were preparedaccording to Table 1. ROP ratio was 0.5% (w/w) for all formulations. Polyvinylalcohol (PVA) as polymer at different concentration of %10 and %15, propyleneglycol (PG), and polyethyleneglycol 400 (PEG 400) as plasticizers at sameconcentration of %10 were used in the formulation. After ODFs are taken on thetongue, citric acid was used to provide salivary stimulation, sodium laurylsulfate as a surfactant, and mannitol to flavor the formulation. Formulationcomponents were dissolved in distilled water and the nanofibers were obtainedby a flow rate of 1.5 mL/h, collector rotation speed of 200 rpm, nozzle betweencollector with a distance of 17 cm, and an applied voltage of 18.5 kV.<o:p></o:p></span></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US">Morphological and organoleptic controls of ROP-ODFswere analyzed by optical microscopy and scanning electron microscopy (SEM).Disintegration times in distilled water and artificial saliva (with pH 6.75)were investigated. Also, surface pH measurement was made in ROP ODFs withMettler Toledo Seven Compact</span><span lang="EN-US">®</span><span lang="EN-US">.</span><span lang="EN-US" style="mso-bidi-font-size:10.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman""><o:p></o:p></span></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify"><span lang="MK"> </span></p><h1 style="margin-top:0cm"><span lang="EN-US" style="font-size:11.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman"">Results and discussion<o:p></o:p></span></h1><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US" style="mso-bidi-font-size:10.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman""> </span></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US">Melting point study of pure ROP was made with theStuart SMP10 model and it was found to be 251 </span><span lang="EN-US">°</span><span lang="EN-US">C.</span><b><span lang="EN-US" style="mso-bidi-font-size:10.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman""><o:p></o:p></span></b></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><b><span lang="EN-US" style="mso-bidi-font-size:10.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman""> </span></b></p><p class="MsoNormal" style="margin-bottom:6.0pt"><span lang="EN-US" style="mso-bidi-font-size:10.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman"">Table1. </span><span lang="EN-US">ROP-ODF formulation parameters</span><span lang="EN-US" style="mso-bidi-font-size:10.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman""><o:p></o:p></span></p><table class="MsoTableGrid" border="1" cellspacing="0" cellpadding="0" width="347" style="width: 260.2pt; border: none;"> <tbody><tr> <td width="47" valign="top" style="width:35.45pt;border-top:double windowtext 1.5pt; border-left:none;border-bottom:solid windowtext 1.0pt;border-right:none; mso-border-top-alt:double windowtext 1.5pt;mso-border-bottom-alt:solid windowtext .5pt; padding:0cm 5.4pt 0cm 5.4pt"></td> <td width="74" valign="top" style="width:55.65pt;border-top:double windowtext 1.5pt; border-left:none;border-bottom:solid windowtext 1.0pt;border-right:none; mso-border-top-alt:double windowtext 1.5pt;mso-border-bottom-alt:solid windowtext .5pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">PVA ratio</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="39" valign="top" style="width:29.15pt;border-top:double windowtext 1.5pt; border-left:none;border-bottom:solid windowtext 1.0pt;border-right:none; mso-border-top-alt:double windowtext 1.5pt;mso-border-bottom-alt:solid windowtext .5pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">PG ratio</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="40" valign="top" style="width:29.7pt;border-top:double windowtext 1.5pt; border-left:none;border-bottom:solid windowtext 1.0pt;border-right:none; mso-border-top-alt:double windowtext 1.5pt;mso-border-bottom-alt:solid windowtext .5pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">PEG 400 ratio</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="45" valign="top" style="width:33.6pt;border-top:double windowtext 1.5pt; border-left:none;border-bottom:solid windowtext 1.0pt;border-right:none; mso-border-top-alt:double windowtext 1.5pt;mso-border-bottom-alt:solid windowtext .5pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">Citric acid ratio<o:p></o:p></span></p> </td> <td width="39" valign="top" style="width:29.15pt;border-top:double windowtext 1.5pt; border-left:none;border-bottom:solid windowtext 1.0pt;border-right:none; mso-border-top-alt:double windowtext 1.5pt;mso-border-bottom-alt:solid windowtext .5pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">SLS ratio<o:p></o:p></span></p> </td> <td width="63" valign="top" style="width:47.5pt;border-top:double windowtext 1.5pt; border-left:none;border-bottom:solid windowtext 1.0pt;border-right:none; mso-border-top-alt:double windowtext 1.5pt;mso-border-bottom-alt:solid windowtext .5pt; padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">Mannitol ratio<o:p></o:p></span></p> </td> </tr> <tr> <td width="47" valign="top" style="width:35.45pt;border:none;mso-border-top-alt: solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">ODF1</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="74" valign="top" style="width:55.65pt;border:none;mso-border-top-alt: solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%10</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="39" valign="top" style="width:29.15pt;border:none;mso-border-top-alt: solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%10</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="40" valign="top" style="width:29.7pt;border:none;mso-border-top-alt: solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">-</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="45" valign="top" style="width:33.6pt;border:none;mso-border-top-alt: solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%2</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="39" valign="top" style="width:29.15pt;border:none;mso-border-top-alt: solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%1</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="63" valign="top" style="width:47.5pt;border:none;mso-border-top-alt: solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%2</span><span lang="EN-US"><o:p></o:p></span></p> </td> </tr> <tr> <td width="47" valign="top" style="width:35.45pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">ODF2</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="74" valign="top" style="width:55.65pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%15</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="39" valign="top" style="width:29.15pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%10</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="40" valign="top" style="width:29.7pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">-</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="45" valign="top" style="width:33.6pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%2</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="39" valign="top" style="width:29.15pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%1</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="63" valign="top" style="width:47.5pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%2</span><span lang="EN-US"><o:p></o:p></span></p> </td> </tr> <tr> <td width="47" valign="top" style="width:35.45pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">ODF3</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="74" valign="top" style="width:55.65pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%10</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="39" valign="top" style="width:29.15pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">-</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="40" valign="top" style="width:29.7pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%10</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="45" valign="top" style="width:33.6pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%2</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="39" valign="top" style="width:29.15pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%1</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="63" valign="top" style="width:47.5pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%2</span><span lang="EN-US"><o:p></o:p></span></p> </td> </tr> <tr> <td width="47" valign="top" style="width:35.45pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">ODF4</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="74" valign="top" style="width:55.65pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%15</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="39" valign="top" style="width:29.15pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">-</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="40" valign="top" style="width:29.7pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%10</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="45" valign="top" style="width:33.6pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%2</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="39" valign="top" style="width:29.15pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%1</span><span lang="EN-US"><o:p></o:p></span></p> </td> <td width="63" valign="top" style="width:47.5pt;border:none;border-top:solid windowtext 1.0pt; mso-border-top-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt"> <p class="MsoNormal" style="margin-bottom:6.0pt;line-height:normal"><span lang="EN-US">%2</span><span lang="EN-US"><o:p></o:p></span></p> </td> </tr></tbody></table><p class="MsoNormal" align="center" style="margin-bottom:6.0pt;text-align:center"><span lang="EN-US"><v:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f"> <v:stroke joinstyle="miter"> <v:formulas> <v:f eqn="if lineDrawn pixelLineWidth 0"> <v:f eqn="sum @0 1 0"> <v:f eqn="sum 0 0 @1"> <v:f eqn="prod @2 1 2"> <v:f eqn="prod @3 21600 pixelWidth"> <v:f eqn="prod @3 21600 pixelHeight"> <v:f eqn="sum @0 0 1"> <v:f eqn="prod @6 1 2"> <v:f eqn="prod @7 21600 pixelWidth"> <v:f eqn="sum @8 21600 0"> <v:f eqn="prod @7 21600 pixelHeight"> <v:f eqn="sum @10 21600 0"> </v:f></v:f></v:f></v:f></v:f></v:f></v:f></v:f></v:f></v:f></v:f></v:f></v:formulas> <v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"> <o:lock v:ext="edit" aspectratio="t"></o:lock></v:path></v:stroke></v:shapetype><v:shape id="Resim_x0020_1" o:spid="_x0000_i1025" type="#_x0000_t75" alt="bina, pencere, daire, saat içeren bir resimAçıklama otomatik olarak oluşturuldu" style="width:137.5pt;height:122pt;visibility:visible;mso-wrap-style:square"> <v:imagedata src="file:///C:/Users/SLA~1/AppData/Local/Temp/msohtmlclip1/01/clip_image001.jpg" o:title="bina, pencere, daire, saat içeren bir resimAçıklama otomatik olarak oluşturuldu" croptop="5000f" cropbottom="16964f"></v:imagedata></v:shape></span><span lang="EN-US" style="mso-bidi-font-size:10.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman""><o:p></o:p></span></p><h1 style="margin-top:0cm"><span lang="EN-US" style="line-height: 107%;">Fig.1. </span><span lang="EN-US">Optical microscopy image of ODF3<o:p></o:p></span></h1><p class="MsoNormal"><span lang="EN-US"> </span></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US">In the data of ROP in DrugBank Online, the meltingpoint is stated between 243 - 250 °C, and the result of the study was found tobe similar to DrugBank.<o:p></o:p></span></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US">FTIR and XRD results of ROP were found to be similarto PubChem and literature (Dudhipala and Gorre, 2020). </span><span lang="EN-US" style="mso-bidi-font-size:10.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman""><o:p></o:p></span></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US">The drug-excipient compatibility studies using FTIRwere carried out with physical mixture 1 containing Ropinirole, PVA, PG, citricacid, SLS, mannitol, and physical mixture 2 containing ropinirole, PVA, PEG400, citric acid, SLS, mannitol. According to the FTIR result, noincompatibility was found between the active substance and the excipients.</span><span lang="EN-US" style="mso-bidi-font-size:10.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman""><o:p></o:p></span></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US">Morphological and optical evaluations revealed thatODFs had a flexible and smooth structure. In Figure 1, it is shown that thefibers are homogeneously and regularly distributed in the optical microscopeimage of the ODF3-coded formulation.<o:p></o:p></span></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US">The disintegration time of ODFs within 2 cm x 2 cmdimensions in 10 mL distilled water was measured as 2 s for ODF1, 3 s for ODF2,3 s for ODF3, and 3 s for ODF4, respectively. Also, the disintegration time ofODFs within 2 cm x 2 cm dimensions in 10 mL artificial saliva was measured as 3s for ODF1, 2 s for ODF2, 2 s for ODF3, and 2 s for ODF4, respectively.<o:p></o:p></span></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US">The pH measurement results of ODFs were found as 7.075for ODF1, 7.173 for ODF2, 7.384 for ODF3, and 7.415 for ODF4, respectively.<o:p></o:p></span></p><h1 style="margin-top:0cm"><span lang="EN-US" style="mso-bidi-font-size:11.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman""> </span></h1><p class="MsoNormal" style="margin-bottom:0cm"><b><span lang="EN-US" style="font-size:11.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman"">Conclusion<o:p></o:p></span></b></p><p class="MsoNormal" style="margin-bottom:0cm"><b><span lang="EN-US"> </span></b></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US">Preformulation studies for ROP ODF have been carriedout successfully. Rapid disintegration was observed in the mouth with adisintegration time of 2-3 seconds in all ODF formulation. <o:p></o:p></span></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US">All polymer ratios were found to be suitable for theelectrospinning process. Polymer type, polymer ratio, and plasticizer typedirectly affected the properties of ROP ODF nanofibers.<o:p></o:p></span></p><p class="MsoNormal" style="margin-bottom:0cm;text-align:justify;text-indent:18.0pt"><span lang="EN-US">Electrospun ODFs could be a potential drug deliverysystem for the treatment of PD for ropinirole hydrochloride.</span><span lang="EN-US" style="mso-bidi-font-size:10.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman""><o:p></o:p></span></p><p class="MsoNormal" style="margin-bottom:0cm"><span lang="EN-US" style="mso-bidi-font-size:10.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman""> </span></p><p class="MsoNormal" style="margin-bottom:0cm;text-indent:18.0pt"><span lang="EN-US" style="mso-bidi-font-size:10.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman""> </span></p><h1 style="margin-top:0cm"><span lang="EN-US" style="font-size:11.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman"">References<o:p></o:p></span></h1><p class="MsoNormal" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:18.0pt;text-align:justify;text-indent:-18.0pt"><span lang="EN-US" style="mso-bidi-font-size:10.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman""> </span></p><p class="MsoNormal" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:18.0pt;text-align:justify;text-indent:-18.0pt"><span lang="EN-US">Simon,D.K.,</span><span lang="EN-US" style="font-size:9.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman""> </span><span lang="EN-US">Tanner, C.M.,Brundin, P.</span><span lang="EN-US" style="font-size:9.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman"">, </span><span lang="EN-US">2020.Parkinson Disease Epidemiology, Pathology, Genetics, and Pathophysiology</span><span lang="EN-US" style="font-size:9.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman"">.</span><span lang="EN-US">Clinics in Geriatric Medicine</span><span lang="EN-US" style="font-size:9.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman"">.</span><span lang="EN-US">36 (1)</span><span lang="EN-US" style="font-size:9.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman"">,</span><span lang="EN-US"> 1-12. <a href="https://doi.org/10.1016/j.cger.2019.08.002"><span style="color: windowtext;">https://doi.org/10.1016/j.cger.2019.08.002</span></a>.<o:p></o:p></span></p><p class="MsoNormal" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:18.0pt;text-align:justify;text-indent:-18.0pt"><span lang="EN-US">Patil,P., Shrivastava, S.K., 2014. Fast dissolving oral films: An innovative drugdelivery system. International Journal of Science and Research, 3(7),2088–2093.<o:p></o:p></span></p><p class="MsoNormal" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:18.0pt;text-align:justify;text-indent:-18.0pt"><span lang="EN-US">Dudhipala,N., Gorre, T., 2020. Neuroprotective Effect of Ropinirole Lipid NanoparticlesEnriched Hydrogel for Parkinson’s Disease: In Vitro, Ex Vivo, Pharmacokineticand Pharmacodynamic Evaluation. Pharmaceutics, 12, 448.<o:p></o:p></span></p><p></p><p class="MsoNormal" style="margin-top:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:18.0pt;text-align:justify;text-indent:-18.0pt"><span lang="EN-US" style="mso-bidi-font-size:10.0pt;line-height:107%;mso-bidi-font-family:"Times New Roman""> </span></p>