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Abstract

In this area, film forming gels may give an volition to traditional lozenge forms on the skin ointment, cream, gel or patch. The polymer result is applied as a liquid to the skin and forms an in- situ film by solvent evaporation.TDDS (Transdermal Drug Delivery System) and Dermal medicine Delivery System can offer some desirable benefits over traditional pharmaceutical lozenge forms, including · Avoiding First- pass gut and liver metabolism Ameliorate medicine bioavailability Reduce cure frequence Stable medicine delivery biographies. The intention of this assessment changed into to search for alternatives to the conventional dosage form with the intention to lessen pores and skin vexation, enhance skin adhesion places, bedeck the medicine release and increase the affected person adequacy from adressed perspective. Due to their peculiar rheological conduct, polymeric gels are salutary in terms of ease of medication, ease of software, adhesion to the software face and eventuality to supply a wide range of medicines.

Keywords

Film forming gels, transdermal, semi soilds.

Introduction

The skin is a completely vital course for the dermal or transdermal transport of pharmaceutically lively substance. Film forming polymeric results are a unique approach in this vicinity that could gift an occasion to the conventional dosage form used on the pores and skin, including ointments, creams, gels or patches. The Polymeric result is carried out to the skin as a liquid and bureaucracy an nearly inconspicuous film in situ by using solvent Evaporation[1]. Transdermal drug shipping contrivance( TDDS) can offer a numerous applicable performances over traditional pharmaceutical dosage formulations, together with avoiding gut and hepatic first- pass metabolism, perfecting drug bioavailability, lowering cure frequency and stabilizing drug transport lives. The conventional dosage forms used for TDDS are especially pressure touchy tenacious patches, Ointments and creams[2,3]. Still, their performances are presently some distance from the most effective. For illustration, The transdermal patches regularly spark multitudinous questions, similar as skin inflammation because of their occlusive houses precluding the saturation of water vapour from the pores and skin bottom, severe pain when hulled off from pores and skin and difficulties for the coaching[4]. The ointments and poultices are generally comfortable to wear but may also depart a Sticky or slithery experience after Polymeric gels are salutary in terms of ease of guiding, ease of mileage, Adhesion to the operation bottom and capacity to deliver a huge variety of drug[5]. Also, the enhancement of TDDS phrasings recently has been concentrated on employing several polymer gels as a film Forming agent.Polymer gels administration generally includes sheeting a cure on the triumphs, shoulders, stomach or inner corridor of the shanks to manufacture a bioadhesive skinny film at the skin face[6-10]. Compared with Transdermal patches, ointments and creams, the innovative bioadhesive pictures represent an enhancement because they offer redundant lozenge inflexibility and ease of use, much lower infection capability, better beauty look and advanced simplicity of manufacture, in addition to do now not go down slithery feeling on operation point[11-13]. Film forming medications are defined asnon-stable lozenge paperwork that produce a film in Situ after software on the pores and skin or any other frame bottom. Similar compositions can both be potables or Semisolids with a film forming polymer as simple cloth for the matrix[14]. The formed movie is sufficiently full- size to give a sustained medicine release to the pores and skin. Considerations for the composition of movie forming polymeric gels.

SUITABLE MEDICINES

The use of the advanced phrasings for dermatological pointers is theoretically possible as nicely still can’t be recommended sometimes due to the nature of the detergent within the compositions. Dermatological ails are frequently associated with infected skin where the operation of ethanolic results is presumably painful for the case and for this reason not suitable. For a transdermal software suitable medicines ought to fulfil positive conditions that are independent Of the lozenge form[2]. Because of the reality that the skin is a completely effective protective hedge for the body, not simply towards physical or microbiological noxes still also towards capsules, stylish strong medicines are eligible for this  path with a every day cure of much lower than 10 mg. the scale of the patch is demanded to be small so one can give a sufficient mobility within the pores and skin structures( molecular weight below 500 Da). As the medicine has to pass Lipophilic in addition to hydrophilic areas in the pores and skin on its way into the systemic movement it’s profitable if The medicine is neither veritably hydrophilic nor extremely lipophilic( log percent between 1 and 3). Thus motes With a pH cost between 5 and 9 in waterless result are favored for the transdermal operation[5]. Also parameters which can be salutary for the transdermal delivery of a medicine are a small range of Hydrogen relating groups(< 2>

  • A high effectiveness( illustration the progestin Nestorone)
  • A inordinate skin permeability( illustration nicotin)
  • A inordinate solubility within the detergent( illustration ethinylestradiol).

A high energy is salutary as it results in low required day by day doses for the medicine. A high pores and skin permeability promotes a high exploitation of the skinny force handed a suitable polymeric matrix is given. A high solubility within the factors, sooner or latterly, allows high medicine ladings and the established order of a high grade between expression and pores and skin. An effective delivery device, meaning a inordinate exploitation of the medicine force during the carrying time, is typically desirable for all capsules. If this ca n’t be done the film forming device might not be appealing for largely- priced dose because of the good sized part of medicine that’s wasted. It remains difficulty to further probe if the film forming answers are applicable for dosage with a slim remedial window because the kinetics of the delivery machine aren’t yet regarded. With respect to the novelty of the film forming systems a radical and character assessment for every new medicine seeker remains ineluctable till a clearer picture of the capabilities of the film forming answers in wide has been entered.

APPLICABLE EXCIPIENTS

Polymer

The polymer is needed to form flicks on the skin bottom temperature( 28 °C- 32 °C) and have to have a certain essential inflexibility and affinity to the pores and skin to keep down from the use of inordinate quantities of plasticizer. It has to be answerable in a particularly parlous, pores and skin friendly solvent. Likewise, sturdy gelatinizing agents should be averted as film former as they help an mileage of the system via scattering. Not withstanding the colorful conditions the polymer webbing trials have tested that almost of the people of the tested polymers might be formulated right into a film forming composition with suitable macroscopic parcels. Only 4 of the 14 examined polymers( chitosan, poly isobutylene, polyvinyl alcohol, poly vinyl pyrrolidone) demanded some of the needed homes and had been accordingly vacated. The verity that the efficiently employed polymers differed astronomically of their chemical structure shows that the system of this lozenge shape isn’t confined to positive polymer agencies. It’s far relatively by all liability that numerous redundant campaigners for film forming answers can be diagnosed some of the multitudinous polymers which can be to be had on the market. Even though multitudinous polymers yielded flicks with suitable macroscopic places, but, the saturation exploration have proven that some polymers are advanced to others with appreciate to the medicine shipping. The results indicated that the polymers don’t handiest incapacitate the medicines in a matrix at the skin, but that they ’ll also have an enhancing( in case of the Dynam X ® expression) or a retarding( in case of the Eudragit RL factors) effect on the medicine permeation. These results can affect on the one hand from complicated relations of the polymeric system with the pores and skin, still also from relations of the polymer with the medicine. The volume of the ultimate is unique for every medicine – polymer total, counting on the physico- chemical parcels of the 2 composites which includes figure or lipophilicity. This need to be stored in studies for the selection of a film forming system for a new medicine seeker[2].

Solvent

The solvent is likewise a veritably pivotal emulsion inside the film forming result although it isn’t part of the real film at the pores and skin because of its short evaporation. The solvent ought to give sufficient solubility for the polymer as well as for the medicine. A high solubilizing agent of the solvent for the medicine lets in enormous performances of the medicine lading to modulate the medicine delivery to the skin. The solvent also can ply an immediate have an impact on the medicine flux. depending on the character of the solvent and its saturation enhancing houses it can vend the medicine delivery to different extents not withstanding its brief touch time with the skin. This must be stored in mind for a also system development. Further to its solubilizing parcels for the polymer and the medicine a applicable solvent for a film forming answer is needed to be particularly parlous to give short drying cases and as a consequence a atrocious affected person Compliance Together with the polymer it’s meant to spread well on the pores and skin after software to give a easy film With a invariant consistence on the mileage website online. Each musts aren’t met for illustration with the aid of the solvent Water. All through the system trials an waterless chitosan system displayed unacceptably lengthy Drying cases and an choppy spreading at the pores and skin because of the high face pressure of the waterless polymeric system. Accordingly, water ca n’t be considered a suitable detergent for the expression of a movie forming Polymeric composition. Solvent which includes ethanol, isopropanol or ethyl acetate with a better volatility and a advanced spreading are to be favored[6].

Plasticizer

In polymeric programs the principle motive of a plasticizer is to grease the film forming and to boom the inflexibility of the performing film. Also, the formula trials have shown that the pores and skin Adhesion of the pictures may be modulated with the help of plasticizers. The plasticizer needs to be veritably well decided on with regard to the film former. It must be miscible with The polymer to give clean flicks with low visibility at the skin. for the reason that performance of a plasticizer is polymer Dependant no wide rule can be enforced as to which plasticizer mindfulness is needed to give pictures With the favored houses. The man or woman determination of the good enough plasticizer content is ineluctable. An shy quantum of the excipient leads to brittle flicks with low skin adhesion. An inordinate quantum of Plasticizer also again issues in smooth, still sticky pictures. Each conditions are inferior for a reliable medicine delivery by way of the film forming system and a atrocious affected person compliance. The plasticizer should rather have a low skin permeability to save you oohing from the shaped film. A sizeable oohing might not only raise safety worries but could also affect in a deterioration of the film places. In case of a lack of plasticizer the film turns into brittle and loses part of its tenacious parcels. The acrylate polymers poly( ethyl acrylate-co-methyl methacrylate) Eudragit NE 40D as well as the silicone acceptable pictures with out the help of a plasticizing agent.

Further Excipients

Away from the abecedarian composites of a film forming polymeric result( polymer, detergent and Plasticizer) it can be applicable to contain in addition excipients into the education. For some polymers along with the acrylate Eudragit R100, it’s salutary to add a crosslinker( succinic acid) to the composition to ameliorate the film balance. For some medicines, a solubilizer or co-solvent may be needed which will boom the medicine lading of the system and the medicine flux. Farther exemplifications for supplementary excipients are Antioxidants to stabilize oxidation touchy dosage in the guidance throughout garage, sun defenses for the protection of photosensitive medicines or colorings to grease the localisation of the formed movie for the case. A precondition for the objectification of also excipients is the comity of the substances with all other composites. Also it has to be kept in studies that each change in the film composition might Negatively have an effect on the macroscopic places of the shaped film inclusive of balance, adhesion to the skin or Stickiness of the external bottom of the movie. Thus it’s judicious tore-compare the macroscopic places Of the fashioned movie after any adaptation of the composition.

APPLICATIONS

Arthritis

Gels are most generally used topical arrangements for the remedy of colorful conditions. Gels Proved to be a veritably good volition for those phrasings which appears to be uncomfortable when carried out by way of every other route including oral course, as it could lead to peptic ulcers( in inordinate application of NSAIDS). Transdermal patches or flicks may be used as an volition for the oral course for the use of NSAIDS. Inside the case of Rheumatoid arthritis, the remedy is executed by using regular application of NSAIDS. Operation of gels is without problems Wiped out due to clothes on joints and pictures may also offer blankness and vexation after extended application due to Adhesive in it. Accordingly, there’s a need to increase new medicine shipping structures for the remedy of rheumatoid arthritis, that are to be had in gel shape but whilst applied on pores and skin face revise into film. These film forming gels( FIFOGE) are a new system helpful in conducting sustained release of medicine indomethacin[13].

Crack care

In the beyond film forming arrangements were honored generally from the sphere of surgical procedure or crack care. Film forming results or gels had been used for case as towel cements for the sealing of operative injuries. The film formers substantially used on this area are fibrin as natural material and cyanoacrylates (octyl- and butylcyanoacrylate) as synthetic polymers[14]. Cyanoacrylates or lately acrylate polymers have also been used for the check of superficial injuries as liquid tapes. Whilst maximum film formers are incorporated into the phrasings as formerly polymerised cloth the cyanoacrylates are regularly applied as monomers. The polymerisation of the monomers takes position in situ and is catalysed for case by means of the presence of water at the skin[15]. The haste of the polymerisation fashion has to be controlled veritably well to avoid nuisances for the case as the procedure is exothermic. Crack care arrangements can both be medicine loose or mixed with antimicrobial capsules to reduce the peril of infections within the injuries[12].

Ostomy care

Away from the crack care film forming arrangements are also administered in ostomy care to guard the pores and skin girding the ostomy crack from the competitive fleshly fluids[16].

Dermal remedy

For dermal remedy some liquid film forming wares are approved, specifically for the remedy of knobs and calluses. Exemplifications are Clabin Plus( Chefaro, Germany). Likewise a many film forming products for the remedy of nail mycoses are registered along with Loceryl( Galderma GmbH, Germany) or Penlac( Dermik Laboratories, america).

Transdermal delivery

The film forming systems that have been described so far are used within the pharmaceutical field however are not designed for the transdermal management of pharmaceutically lively substances. Only a few preparations that intention at a sustained drug transport over an extended time frame were described in the literature[17]. Some other film forming semisolid guidance was investigated, a transdermal hydrogel on the idea of polyvinyl alcohol and polyisobutylene that solidified right into a full-size film in situ on the skin. The shaped film became capable of offer a sustained launch of testosterone over 24 hours. Because of its cohesive structure the formed film become removable via peeling. The fact that the practise produced a large and sturdy film at the pores and skin, which is the prerequisite for a sustained drug release, distinguishes it from different transdermal gels. In those gels the primary motive of the gelling sellers, that may be film forming polymers as properly, isn’t always to form films but to boom the viscosity by means of setting up a gel shape within the preparation. Due to this the gelling agents aren’t selected for his or her film forming capability and are frequently used in low concentrations in order that the ensuing films (if shaped in any respect) are alternatively vulnerable and show little endurance at the skin. Therefore maximum transdermal gels cannot offer a sustained drug launch to the skin and can hence no longer be considered as film forming arrangements in the feel of this paintings.

Mucositis

Mucositis urged by way ofanti-neoplastic tablets is an critical, cure- limiting, and high- priced aspect effect of cancer remedy. The ulcerative lesions produced through mucotoxic chemotherapy are painful, limit oral consumption and, importantly, act as web spots of secondary impurity of oral foliage. Pretreatment evaluation of oral concave space hygiene and mouthwashes feel to be effective in stopping the onset of oral mucositis. Some remedial marketers, conforming of benzydamine, imidazole antibiotic, triazolicantimycotic and povidone iodine have proven a many scientific evidence of their efficacity in lowering oral mucositis. Bioadhesive polymers appear to be in particular appealing for the enhancement of medicine delivery systems to enhance intraoral administration and drop the frequence of mileage and the quantum of medicine administered. Gels and flicks may be most suitable for this form of operation and they may be able of cover a expansive vicinity of mucosa for both medicine delivery and fleshly protection. Film forming gel phrasings were prepared the use of mucoadhesive polymer to produce a fleshly hedge around the ulcers and shape a treated film for transport of either diclofenac sodium or ofloxacin to treat the formed ulcer.

EVALUATION TESTS FOR FILM FORMING GELS

Phase transition time

Time demanded by the gel to get converted into film is the phase transition time. One gram of gel changed into deposited on a petri dish which come spread slightly on it and kept on a warm plate at 37 ?C and time wanted till gel converts into movie came measured.

Film Weight

One gram of the gel turned into deposited on a petridish which come left for drying. After drying the attendant film was counted on an digital stability.

Film consistence

Film consistence come measured by vernier calipers screw hand. The gel turned into unfold on a place of 5 Cm ?2; terminated on a petridish. This petridish came left overnight for drying after which the film come hulled off and the consistence turned into determined from three one- of-a-kind points at the film.

Rheological Studies

The Brookfield Viscometer LVDV II turned into used to determine the rheology of studied gels. Gels had been located beneath the viscometer the operation of S sixty four spindle to decide their density. The density was decided at exclusive RPM of 10, 20, 50, 100 and the corresponding density and necklace have been noted.

Spreadibility studies

Minimal volume of the system turned into placed between two glass plate and the glass plate at the top changed into gently slided on the nethermost glass slide to decide the spreadibility of the system Spreadibility was measured on the idea of drag and slip traits of gels. A bottom glass slide was fixed in this block. An redundant of gel( about 2 gm) underneath take a look at came deposited in this ground slide. The gel turned into also squeezed between this slide and every other glass slide having the size of constant ground slide and supplied with the Hook. A 1 Kg weight changed into located at the zenith of the 2 slides for 5 mins to expel air and to give a invariant film of the gel among the slides. Extra of the gel came scrapped off from the skirtings. The zenith plate was also subordinated to drag of 80 gms. With the help of string connected to the hook and the time( in seconds) needed through The top slide to cover a distance ofseven.five cm be mentioned. A shorter c programming language shows advanced Spreadability. Spreadibility was calculated using the following formula

Spreadibility = M x L/ T

Where,

S = Spreadibility,

M = Weight in the visage( tied to the upper slide), L = Length moved by the glass slide And

T = Time( in sec.) taken to separate the slide fully each other.

CONCLUSION

Film forming gels proves to be effective dosage shape for the transdermal delivery of medicine. Also it remains adhered to the effected part for a longer duration with out getting rubbed off. It affords sustained impact and better comfort than the conventional gels and frequent reapplication isn’t required. The concept of film forming gels can exchange to remedy concept of diverse diseases along with arthritis. A number of paintings may be executed on this discipline.

REFERENCE

  1. Langer R. Adv Drug Deliv Rev 2004; 56: 557-558.
  2. Naik A, Kalia YN, Guy RH. Pharm Sci Technol 2000; 3 :318-326.
  3. Thomas BJ, Finnin BC. Drug Discov Today 2004;16: 697-703.
  4. Zhai H, Maibach H I. Skin Res Technol 2002;8:1-6.
  5. Alberti I, Grenier A, Kraus, Raus H, Carrara DN. Exp Opin Drug Deliv 2005;2 :935-950.
  6. Lee JW, Park JH, Robinson JR. J Pharmaceut Sci 2000; 89:850-866.
  7. Patel NA, Patel NJ, Patel RP. Pharm Deliv Tech 2009; 14: 80-89.
  8. Baboota S, Shakeel F, Kohli K. Exp Clin Pharmacol 2006;28:109-114.
  9. Shin SC, Kim HJ, Oh IJ, Cho CW, Yang KH. Eur J Pharm Biopharm 2005; 60: 67-71.
  10. Schroeder IZ, Franke P, Schaefer UF, Lehr CM. J Control Release 2007; 118: 196-203.
  11. Jones DS, Woolfson A, Brown DAF. Int J Pharm1997;151: 223-233.
  12. Singh V, Kukreti G, Singh MF. Guru Drone Journal of Pharmacy and Research2013; 1: 22-28.
  13. Eaglstein WH, Sullivan TP, Giordano PA, Miskin BM. Dermatol Surg 28: 263-267, 2002.
  14. Hall LT, Bailes JE. Neurosurgery 2005; 56:147-150.
  15. Singer AJ, Thode HC. .The Amer. J. Surg 2003; 187: 238-248.
  16. An NM, Kim DD, Shin YH, Lee CH. Drug Dev Ind Pharm 2003; 29: 99-105.
  17. Sonis S, Clark J. Oncology 1991;5 :11-18

Reference

  1. Langer R. Adv Drug Deliv Rev 2004; 56: 557-558.
  2. Naik A, Kalia YN, Guy RH. Pharm Sci Technol 2000; 3 :318-326.
  3. Thomas BJ, Finnin BC. Drug Discov Today 2004;16: 697-703.
  4. Zhai H, Maibach H I. Skin Res Technol 2002;8:1-6.
  5. Alberti I, Grenier A, Kraus, Raus H, Carrara DN. Exp Opin Drug Deliv 2005;2 :935-950.
  6. Lee JW, Park JH, Robinson JR. J Pharmaceut Sci 2000; 89:850-866.
  7. Patel NA, Patel NJ, Patel RP. Pharm Deliv Tech 2009; 14: 80-89.
  8. Baboota S, Shakeel F, Kohli K. Exp Clin Pharmacol 2006;28:109-114.
  9. Shin SC, Kim HJ, Oh IJ, Cho CW, Yang KH. Eur J Pharm Biopharm 2005; 60: 67-71.
  10. Schroeder IZ, Franke P, Schaefer UF, Lehr CM. J Control Release 2007; 118: 196-203.
  11. Jones DS, Woolfson A, Brown DAF. Int J Pharm1997;151: 223-233.
  12. Singh V, Kukreti G, Singh MF. Guru Drone Journal of Pharmacy and Research2013; 1: 22-28.
  13. Eaglstein WH, Sullivan TP, Giordano PA, Miskin BM. Dermatol Surg 28: 263-267, 2002.
  14. Hall LT, Bailes JE. Neurosurgery 2005; 56:147-150.
  15. Singer AJ, Thode HC. .The Amer. J. Surg 2003; 187: 238-248.
  16. An NM, Kim DD, Shin YH, Lee CH. Drug Dev Ind Pharm 2003; 29: 99-105.
  17. Sonis S, Clark J. Oncology 1991;5 :11-18

Photo
Pradnya K Gangurde
Corresponding author

Department of Pharmaceutics, KCT RG Sapkal College of Pharmacy, Anjineri, Nashil-422212

Photo
Kajal A Choursiya
Co-author

Department of Pharmaceutics, KCT RG Sapkal College of Pharmacy, Anjineri, Nashil-422212

Photo
Saba Shaikh
Co-author

Department of Pharmaceutics, KCT RG Sapkal College of Pharmacy, Anjineri, Nashil-422212

Photo
Shardha Kandalkar
Co-author

Department of Pharmaceutics, KCT RG Sapkal College of Pharmacy, Anjineri, Nashil-422212

Photo
Khanderao Jadhav
Co-author

Department of Pharmaceutics, KCT RG Sapkal College of Pharmacy, Anjineri, Nashil-422212

Photo
Rishikesh Bachhav
Co-author

Department of Pharmaceutics, KCT RG Sapkal College of Pharmacy, Anjineri, Nashil-422212

Pradnya K Gangurde, Kajal A Choursiya, Saba Shaikh, Shradha Kandalkar, Khanderao Jadhav, Rishikesh Bachhav, Film Forming Gels: A Review, Int. J. of Pharm. Sci., 2024, Vol 2, Issue 5, 1511-1517. https://doi.org/10.5281/zenodo.11349171

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