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A reductive filter paper for selective nitro reduction has been prepared by modification of a pristine cellulose filter paper by Pd/C nanoparticles, as a portable catalyst. The reaction was performed in two different set-ups including (i) filtration and (ii) sealed systems, in the presence of ammonium formate and

In this work, we successfully demonstrated the facile fabrication of highly flexible and floatable Cu2O/rGO on Vietnamese traditional paper (VTP) for the solar-light-driven photocatalytic degradation of the antibiotic ciprofloxacin. The catalyst membrane was prepared by the green reduction of both Cu(OH)2 to Cu2O nanoparticles and graphene oxide to reduced graphene oxide. VTP has a fibrous structure with tiny fibers connected like a spider web and multiple layers in the form of a multidimensional array, which functions as a flexible and highly porous supporter to the catalyst. Moreover, the microfibrillated cellulose of VTP acts as micro-capillaries to drag ciprofloxacin (CIP) close to the active sites on the Cu2O/rGO/VTP surface, which improves the adsorption capacity and photocatalytic efficiency of ciprofloxacin. The adsorption process is best described by the pseudo-first-order and Freundlich models. The maximum photodegradation of CIP by the catalyst is more than 80% attained after 1.5 h under solar light irradiation with a fixed CIP concentration of 10 mg L−1. The catalyst membrane exhibited good reusability of up to 5 cycles.

This work developed an economic, convenient, sensitive and practical methyl parathion sensor using an easy-to-fabricate, reusable, inexpensive carbon nanotube/carbon paper composite as the working electrode. Carbon nanotubes form a network structure and provide large surface area, which can enhance the electron transfer capability of the carbon paper electrode. As an electrochemical sensing platform, the constructed carbon nanotube/carbon paper sensor allows sensitive determination of methyl parathion in the range of 10 ng mL−1 to 1000 ng mL−1 with a low detection limit of 3.9 ng mL−1. Importantly, the present study demonstrated the high sensitivity, satisfactory stability and good anti-interference capabilities of this new electrode platform for methyl parathion detection. Furthermore, the present method was successfully applied to determine methyl parathion in kiwi samples with satisfactory precision (3.74–5.05%) of relative standard deviation (RSD) and acceptable recoveries (99.67–108%), which demonstrated the applicability of the carbon nanotube/carbon paper composite sensor. Such a facile approach for the detection of OPs may provide some guidance for designing nanomaterial-based sensors.

Paper microfluidic devices are a promising technology in developing analytical devices for point-of-care diagnosis in the developing world. This article describes a novel method of wax jetting with a PZT (piezoelectric ceramic transducer) actuator and glass nozzle for the fabrication of paper microfluidic devices. The hydrophobic fluid pattern was formed by the permeation of filter paper with wax droplets. Results showed that the size of the wax droplet, which was determined by the voltage of the driving signal and nozzle diameter, ranged from 150 μm to 380 μm, and the coefficient of variation of the droplet diameter was under 4.0%. The smallest width of the fluid channel was 600 μm frontside and 750 μm backside. The patterned filter paper was without any leakage, and multi-assay of glucose, protein, and pH on the paper microfluidic device, and laminar diffusion flow with blue and yellow dye were realized. The wax jetting system supplied a low-cost, simple, easy-to-use and fast fabrication method for paper microfluidic devices.

Amphiphobic nanocellulose-modified paper with high durability is successfully fabricated using a facile two-step method. Firstly, nanocellulose-modified paper is prepared through dipping filter paper, i.e., glass microfiber (GM) filter paper and polytetrafluoroethylene (PTFE) filter paper in a dilute nanocellulose dispersed solution. Subsequently, the nanocellulose-coated paper is treated with trichloro(1H,1H,2H,2H-tridecafluoro-n-octyl)silane (FOTS) via chemical vapor deposition. The obtained paper is found to have superhydrophobicity and oleophobicity, repelling both polar and non-polar liquids, on which the drops of water and non-polar liquids with high molecular weight become marble shaped, and the contact angles of water and n-hexadecane reach 156° and 144°, respectively. Furthermore, such amphiphobic nanocellulose-modified papers exhibit excellent surface durability in several environments including at various temperatures, and in acid and alkaline solutions, salt solutions and seawater. In addition, such amphiphobic nanocellulose-modified papers show good repellant properties for several kinds of liquids from our daily life. With outstanding protection to a diverse range of liquids, the amphiphobic nanocellulose-modified paper can be applied in the fields of self-cleaning, anti-bacterial, and anti-corrosion materials.

This work presents a facile method for fabrication of microfluidic paper-based analytical devices (μPADs) and on-device fluid control with a portable, hand-held corona generator. First, filter paper was hydrophobized by coupling octadecyltrichlorosilane (OTS) to paper cellulose. Then, the OTS-coated paper, covered with a stenciled plastic mask, was region-selectively exposed to the corona by scanning the electrode tip of the corona generator along the open parts of the mask. Thus, the corona-exposed regions of the paper surface resumed their native hydrophilicity while the masked regions remained highly hydrophobic. The effect of corona treatment time on the paper's hydrophilic property was investigated. Colorimetric assays of nitrite in saliva samples were demonstrated with the developed μPADs. A single-use ‘on’ valve based on wettability-switching was developed in the μPADs. Fluid control was realized via on-site corona discharge targeted at a hydrophobic barrier design as the ‘on’ valve.

A hybrid microfluidic/electrochemical system is described for the time-resolved detection of dopamine (DA) from neuron-like PC12 cells cultured on a patch of filter paper. Cell adherence to the surface of the paper is investigated using fluorescence microscopy. DA release after stimulation with acetylcholine, in the presence or absence of drugs, is studied. Overall, the results obtained with this system are in good agreement with single cell data, thus demonstrating the validity of our approach for higher-throughput quantitative chemical analyses on tissue or organs-on-a-chip.

We report a simple preparation procedure for free-standing and flexible rGO/PbSe0.5S0.5 paper. The fabrication process includes two steps: first, graphene oxide (GO) paper was obtained by vacuum-filtration of a GO dispersion through a membrane and then the GO paper was transformed to rGO paper by chemical reduction with HI. The second step includes formation of a rGO/PbSe0.5S0.5 hybrid paper electrode by one-pot electrodeposition of PbSe0.5S0.5 nanoparticles onto an rGO paper electrode from a solution containing saturated PbS and PbSe. The electrodeposition process is based on underpotential deposition of Pb2+, Se4+, and S2− electroactive species which are produced by the dissolution of both PbS and PbSe in the solution at 70 °C. For this purpose, the electrodeposition step was initially tested on Au(111) electrodes and then applied on an rGO paper electrode. Suitable constant electrodeposition potentials were determined as −300 and −450 mV on Au(111) and rGO paper electrodes, respectively. Characterization of the prepared samples has been performed using scanning tunneling microscopy, scanning electron microscopy, powder X-ray diffraction, electron dispersive spectroscopy, Fourier transform-infrared spectroscopy, UV-vis-NIR, chronoamperometry, and cyclic voltammetry techniques.

The papermaking industry always causes many disastrous problems to humans, such as energy consumption, environmental pollution and destruction to the ecosystem. However, paper is not only one kind of life's necessities but also a necessity of the office. But the service life of paper is reduced easily because of the invasion of water. Here we creatively prepared one kind of multifunctional inner and outer uniform-superhydrophobic paper by the secondary use of waste paper inspired by nature and traditional papermaking knowledge, which not only has a great water proof ability for various liquids, but also has wonderful self-cleaning, anti-fouling and oil absorption abilities. It is worth mentioning that superhydrophobic recycled paper still has good writability, suppleness, foldability and tailorability to meet our daily needs. Unique outer and inner uniform-superhydrophobicity make this paper able to tolerate any degree of abrasion. This groundbreaking work will not only avoid harm by the water invasion and expand the usable range of paper, but also it will ease the energy and environment crisis.

This study aims to investigate the effect of an engineered microstructure on the oxygen permeation property of a BaBi0.2Co0.35Fe0.45O3−δ (BBCF) type perovskite membrane. The interconnected multi-level cross-linked structure of the BBCF membrane has been synthesized by mimicking a common laboratory grade filter paper. The controlled calcination of the cellulose matrix results in a single phase BBCF structure when calcined at 950 °C in air. The average diameter of the interconnected BBCF fiber is about 1 μm as confirmed by FESEM. The electrical conductivity is measured to be ∼20 S cm−1 at 800 °C, higher than that of other conventionally prepared BBCF based membranes. The perovskite membrane derived by exo-templating of the filter paper's cellulose fiber reveals an enhanced oxygen permeation flux of 0.98 ml min−1 cm−2 at 900 °C.

The present research deals with the treatment of agri-based pulp and paper mill wastewater by continuous electrocoagulation (CEC) process using iron (Fe) as an electrode material. Effects of flow rates (dm3 h−1): 0.5–4.0 and residence time (τ): 0.5–4.0 h were investigated on degradation of chemical oxygen demand (COD), color, total solid (TS), turbidity, specific energy consumption (SEC), instantaneous current efficiency (ICE) and electrochemical degradation index (EDI). At flow rates of 1.0 and 0.5 dm3 h−1, COD removal efficiency of 78.20 and 82.15%; and color removal efficiency of 79 and 90%, respectively, was achieved. TS concentration of wastewater slurry was also reduced by 65% after 3 h residence time with flow rate of 1 dm3 h−1. The specific energy consumption (kW h per kgCODremoved) was decreased from 16.3 to 14.3 with decrease in τ from 4 to 1 h. At a supply charge concentration of 0.62 A h dm−3, the current efficiency (CE) values were 310% and 274% after τ = 2 and 1 h, respectively. Dissolution and consumption of electrodes were also studied with a change in flow rates. Sludge obtained after the CEC process was analyzed for settling and filterability characteristics, morphology and elemental analysis, point of zero charge, physicochemical and elemental characterization, and TS concentration. The operating cost of the process was also calculated based on the electrical energy and electrode consumption and was found to be 61.0 Indian Rupees (0.9 USD) for the treatment of 1 m3 of wastewater.

We study the synthesis and electrochemical performance of molecular precursor-derived ceramic (PDC)/carbon nanotube-embedded graphene self-supporting composite papers as Li-ion battery and supercapacitor electrodes. The composite papers are prepared using vacuum filtration of PDC-graphene oxide (GO) dispersion, followed by thermal reduction at 500 °C. Tested as a Li-ion battery electrode, the composite papers deliver a reversible capacity as high as 300 mA h g−1 (normalized with respect to total mass of the electrode) with negligible capacity loss after 1000 charge/discharge cycles. Boron-doped silicon carbon nitride (Si(B)CN) outperforms its undoped counterpart (SiCN) in terms of rate capability, cyclic stability, and coulombic efficiency. Among the PDC materials analyzed, Si(B)CN–CNT–rGO demonstrates the lowest ohmic resistance and highest specific capacitance of approximately 269.52 F g−1 at a current density of 5 A g−1, making it a promising electrode material for electrochemical energy storage applications.

The ability of graphene oxide (GO) aqueous suspensions to form robust GO paper is largely improved by basification of the suspension before processing. In particular, casting procedures, which are generally unsuitable for production of robust GO paper, become suitable for basified GO (b-GO) suspensions, leading to dense and free-standing papers, which are also highly flexible. Thermal or microwave treatments of paper from b-GO suspensions (b-GO paper) easily produce loss in stacking order of graphene oxide layers, with maintenance of a high degree of parallelism (0.6 < f ≡ orientation function < 0.7) with respect to the paper surface. Differently from usual GO papers, b-GO papers maintain their dimensional integrity when thermally treated or when dispersed in organic solvents or in aqueous solutions. Many relevant b-GO features (improved film ability by casting, maintenance of film integrity and reduced deoxygenation by heating and improved solvent resistance) can be rationalized by formation of covalent bridges between GO layers. Infrared spectra and simple chemical arguments suggest that these covalent bridges between GO layers could be mainly constituted by ether bonds.

The printing quality and strength of specialty papers such as money, maps, newspapers and bank notes have been a significance challenge in recent years. The adhesive effect between ink and paper is depend on both the secondary binding force between the molecules and the mechanical anchoring effect of the ink on the paper. Also, the porous and fibrous structures of base paper restrain its application in printed products because of the strong capillary effect leading to the diffusion of ink particles. To address the problems involved in ink diffusion and mechanical reinforcement, surface sizing is an attractive choice from the perspective of paper handling. Herein, the surface sizing system of specialty paper with an interpenetrating polyvinyl alcohol-blocked polyurethane polymer network was applied to fabricate paper of high ink adhesive properties. In the case of the same external factors (gluing temperature, drying time

A flexible free-standing nitrogen-doped graphene paper (N-GP) is fabricated via a facile hydrothermal approach with doping reaction occurring at the solid/gas interface of graphene oxide and ammonia vapor. Ammonia not only facilitates the doping of oxidized graphene paper efficiently with a nitrogen doping level of ca. 6.81%, but also promotes its reduction. The electrochemical properties of N-GP as an anode of lithium ion batteries (LIB) are evaluated and N-GP delivers almost doubled reversible discharge capacity compared to the undoped graphene paper (GP) as well as a good cyclic stability and rate performance. The proposed strategy to realize simultaneous reduction and nitrogen doping of graphene oxide via hydrothermal approach at the solid/gas interface offers a green and facile solution to modify graphene paper with desired electrochemical performances for LIB application.

Direct functionalization of prefabricated free-standing graphene oxide paper (GOP) is the only approach suitable for systematic tuning of its mechanical, thermal and electronic characteristics. However, the traditional liquid-phase functionalization can compromise physical integrity of the paper-like material up to its total disintegration. In the present paper, we attempted to apply an alternative, solvent-free strategy for facile and nondestructive functionalization of GOP with 1-octadecylamine (ODA) and 1,12-diaminododecane (DAD) as representatives of aliphatic amines, and with 1-aminopyrene (AP) and 1,5-diaminonaphthalene (DAN) as examples of aromatic amines. The functionalization can be carried out under moderate heating at 150–180 °C for 2 h in vacuum, and proceeds through both amidation and epoxy ring opening reactions. Comparative characterization of pristine and amine-modified GOP samples was carried out by means of Fourier-transform infrared, Raman, and X-ray photoelectron spectroscopy, thermogravimetric and differential thermal analysis, scanning electron and atomic force microscopy. In addition, we compared stability in water, wettability, electrical conductivity and elastic (Young's) modulus of GOP samples before and after functionalization. The highest content of amine species was obtained in the case of GOP-ODA, followed by GOP-DAD, GOP-AP and GOP-DAN. The functionalization increased mechanical and thermal stability, as well as the electrical conductivity of GOP. The magnitude of each effect depends on the structure of amine employed, which allows for tuning a given GOP characteristic. Morphological characterization showed that, compared to pristine graphene oxide paper, amine-modified mats become relatively ordered layered structures, in which individual GO sheets are organized in a near-parallel fashion.

In this study, we developed a novel and facile method for fabricating paper-based microfluidic analytical devices (μPADs) with dynamic mask photo curing (DMPC), generated by a desktop stereolithography (SL) three-dimensional printer (3DP). First, we immersed the filter paper in ultraviolet (UV) resin to cover it evenly. Next, we exposed it to UV-light through a dynamic mask of the negative channel pattern. After curing, the UV-exposed regions become highly hydrophobic, creating hydrophobic barriers. Finally, we washed the uncured resin with anhydrous alcohol and fine μPADs were obtained. The resolution of the fabricated hydrophilic channels was 367 ± 20 μm, with a between-channel hydrophobic barrier of 400 ± 21 μm. To verify this method's performance, we fabricated μPADs with DMPC for quantitative analysis of nitrite ion. This new method represents a leap forward in terms of time saved. Since all hydrophobic barriers are cured at a time, the fabrication process can be completed in only two minutes, no matter how complex the patterns are. Compared to the widely used fabrication method of μPADs, wax printing, DMPC provides an alternative way to fabricate μPAD with different hydrophobic barriers materials, which provides the possibility of designing different μPADs according to the application environments.

The detection of bovine viral diarrhea virus (BVDV), which is a pathogen inducing fatal gastrointestinal disease in cattle, is becoming a momentous issue in the livestock farm. In that, BVDV is related to inapparent infection and various diseases with high transmissibility; it has also led to considerable economic losses. In this study, a simple dot-blotting method was devised to construct a rapid screening system for BVDV. Based on the BVDV-specific bioreceptors, it was anchored on the gold nanoparticles (AuNPs) to generate the seeding sites for signaling; then the signals were amplified by adopting the overgrowth of copper nano-polyhedral shells on AuNPs. The developed detection system shows a low detection limit of 4.4 copies per mL, and even this could be distinguished with naked eyes. These results indicate that the designed nanobiosensor possesses not only high sensitivity and selectivity but also potential usage on a point-of-care testing platform for BVDV.

In this paper, a simple and cost-efficient strategy was used to construct a uniform Au NPs distribution on the surface of flexible filter paper for the detection of benzidine. Taking full advantage of the adsorption properties of filter paper, small gold nanoparticles were adsorbed onto its surface as gold seeds, and subsequently grown by electroless plating to form a highly uniform distribution of Au NPs substrates. By changing the electroless plating time, an optimal substrate was obtained. The as-prepared substrate exhibited satisfactory sensitivity with a low detection limit of 10

Uric acid (UA) is the end product of purine metabolism. Uric acid is usually excreted in the urine, but its abnormal increase and toxic amount can lead to diseases such as gout, hyperuricemia, Lesch–Nyhan syndrome, and cardiovascular disease. On the other hand, UA reduction can lead to neurodegenerative diseases such as sarcoma, glioblastoma, Hodgkin, and etc. Therefore, rapid identification of UA is of great importance. In this work, a simple, portable, inexpensive, and fast microfluidic paper-based colorimetric sensor based on the color change in the presence of UA by using AuNPs was developed. The results can be easily identified with naked eye and further confirmed by UV-vis spectrophotometry. In this method, iron pattern and fiberglass paper were used to construct diagnostic areas and hydrophilic microfluidic channels. We greatly reduced the preparation time of this pattern using a magnet (about three minutes). In this work, four types of nanoparticles with different lower limit of quantification (LLOQ) were used. Linear range of 10−6 to 10−3 M and LLOQ of 10−6 M were obtained for the determination of uric acid using AuNPs–CysA as optical probe. Also, by AuNPs as optical probe a linear range of 10−4 to 10−2 M and the obtained LLOQ was 10−4 M. Finally, by AuNFs as optical probe linear range from 10−6 to 10−2 M and 5 × 10−5 to 10−2 M along with LLOQ of 10−6 and 5 × 10−5 M, respectively. The designed system successfully studied in human urine samples.

To promote sustainability, the effective reutilization of electronic waste and profitable recovery of valuable materials from e-scrap are essential. A recent report showed that 500 million printer cartridges enter landfill annually, creating immense interest in establishing a facile recovery method for transforming waste toner into a ferrous resource. Furthermore, the European Union and US Food and Drug Administration have published guidelines concerning bisphenol A (BPA) use in the manufacture of thermal paper receipts. Accordingly, in this study, BPA levels in thermal receipts collected from various stores in Taiwan were detected by glassy carbon electrodes fabricated using graphene oxide-recovered Fe3O4 nanocomposites.

Inspired by cooking omelettes, a facile, low-cost and scalable method involving the use of a readily available household non-stick frying pan is introduced to fabricate large-area freestanding reduced graphene oxide (RGO) paper. The as-fabricated RGO paper is robust enough to bear sandpaper polishing, bending/folding, and hydrothermal and electrochemical deposition processes without obvious structure/performance degradation. As a demonstration, the as-obtained RGO papers were directly used as universal flexible substrates for high performance supercapacitors (SCs). Thus, WO3 and PPy, which are two distinctive active materials, were loaded onto the RGO paper via a hydrothermal process and electrodeposition process, respectively, which are two typical fabrication methods for high performance SC electrodes. The resultant WO3– and PPy–RGO paper, which act as negative and positive electrodes, respectively, were further assembled into a flexible asymmetric supercapacitor (ASC), achieving a high energy density of 0.23 mW h cm−3 at a power density of 7.3 mW cm−3 when normalized to the whole volume. Moreover, benefiting from the robust flexible RGO substrate, the performance of the ASC showed great stability under different bending angles and after repeated bending/folding. These exciting results demonstrate that our robust RGO paper is an ideal universal substrate for different active materials synthesized via various processing methods, which show its great potential in an all-solid energy storage system with excellent flexibility and robustness.

Freestanding paper-like materials prepared from chemically derived graphene have considerable potential as a carbon-based electrode in high-performance flexible energy storage devices. Herein, a highly flexible graphene paper (GP) assembled from graphene nanoplatelets (GNPs) with the aid of graphene oxides (GOs) is reported for a high-performance, binder- and conducting additive-free anode in lithium-ion batteries (LIBs). In contrast to previous reports on GPs based on a flow-directed assembly of graphene sheets, this GNP/GO paper exhibited a highly wrinkled and disordered morphology. When the GNP/GO paper was applied as a LIB anode, it showed a high specific capacity of 694 mA h g−1 and high rate performance. Furthermore, a pouch-type flexible LIB using the GNP/GO paper also showed a stable cycling behavior and practical performance. This GNP/GO paper electrode prepared using a simple, yet effective assembly of graphene derivatives, is highly promising for the fabrication of flexible energy storage devices.

Lithium–sulfur (Li–S) batteries with high theoretical capacities and low cost are a strong candidate for future energy storage, but their development is hindered by many shortcomings, such as high-rate capacity decay due to the “shuttle effect”. Herein, we increase the capacity retention and cycle life of the Li–S battery through the addition of an interlayer made of polypyrrole (PPy)-treated carbon paper (CP) in a Li–S battery. We first quantitatively investigate the effect of the thickness of the carbon paper and then optimize a novel interlayer prepared by using PPy adhered to the carbon paper. The results show that 300 μm CP is the best choice among the three thicknesses. The CP-300 samples deliver a reversible capacity of 490 mAh g−1 after 200 cycles with a 0.5 C rate and show the best rate performance. Because of the porous structure and conductivity of the as-prepared PPy interlayer, the battery incorporating the PPy interlayer exhibits more excellent cycle performance and better rate performance than the CP batteries. Surprisingly, the PPy-coated CP-200 battery displays a reversible capacity of 555 mAh g−1 after 200 cycles with a 0.5 C rate. This feasible way to modify a carbon paper interlayer may have promising prospects in the Li–S battery field.

A facile approach to assembling polyethyleneimine (PEI)-entrapped gold nanoparticles (Au PENPs) onto filter paper is reported. In this work, Au PENPs with an Au core size of 3.2 ± 0.8 nm were formed using PEI as a template, followed by adsorption onto filter paper. The formed Au PENP-containing filter paper was characterized by various techniques. We show that the Au PENPs are able to be adsorbed onto filter paper likely due to the microfibrous structure of the paper and the electrostatic interaction between the positively charged Au PENPs and the negatively charged filter paper. Furthermore, we demonstrate that the Au PENP-assembled filter paper displays an excellent catalytic activity and reusability to converting 4-nitrophenol to 4-aminophenol. Such a development of Au PENP-assembled filter paper may be applicable for the immobilization of other metal NPs onto filter paper for various applications in catalysis, sensing, and biomedical sciences.

Uniform ZnO nanowires (NWs) were grown on cellulose filter paper via a modified one-step hydrothermal method. The ZnO coated filter paper exhibited superhydrophilicity and underwater superoleophobicity due to the surface roughness of the coated ZnO NWs. The coated cellulose filters demonstrated exceptional results at oil/water separation with high separation efficiency and experimentally proven recyclability for several oil/water mixtures. The outstanding separation performance and scalable growth method highlight potential for practical applications, such as wastewater treatment and polluted water purification.

We described a low-cost method for rapid prototyping of a microfluidic paper-based analytical device by inkjet printing of permanent marker ink. After the evaporation of ink solvent is printed onto the paper, hydrophobic resin remains and forms hydrophobic barriers for microfluidic flow and analysis.

A novel method of producing flexible graphene-based paper (GBP) electrodes through the direct hydrothermal reduction of graphene oxide based paper is developed. On the basis of an electrostatic attraction mechanism or pH-enhanced π–π attraction mechanism, a delicate balance between integrity, flexibility and porosity of GBPs is maintained during the hydrothermal treatment process, providing them with excellent compositional, microstructural and supercapacitive characteristics. Furthermore, the insertion of CNT into the graphene interlayer spaces immensely improves the specific capacitance (up to 195 F g−1) and rate capability (10 A g−1) of the supercapacitors assembled with these GBPs. In addition, the facile and simple preparation procedures and arbitrarily controlled area and thickness of the GBPs predict their promising industrialization potential.

This paper reports an investigation on the use of a highly stable colloidal organic dispersion consisting of a polysaccharide derivative and alkaline nanoparticles for the simultaneous deacidification and strengthening of aged historical wood pulp (HWP) and new paper. Colloidal dispersions of Mg(OH)2 nanoparticles (size ca. 150 nm) stabilized by trimethylsilyl cellulose (TMSC) in hexamethyldisiloxane (HMDSO) are employed for paper treatments. The influence of the polymer shell on the morphology of the particles and the stability of the dispersions, and polymer–particles interactions are examined. A correlation between the polymer concentration and stability of the nanoparticles is established. The influence of the particle–polymer coatings on the optical appearance, the pH, the alkaline reserve and the strength of the paper is investigated by pH-measurements of cold-extracts, back-titrations, artificial aging and mechanical testing. Infrared spectroscopy confirmed the irreversible deposition of nanoparticles and TMSC on the paper. The surfaces are evenly coated as confirmed by electron microscopy and contact angle measurements, and the coating does not change the optical appearance of the paper. Results from pH measurements and back-titrations have proven neutralization of acids and an alkaline reserve of 60 meq [OH−]/100 g of paper before aging and 41 meq [OH−]/100 g of paper after aging. Upon aging TMSC is hydrolyzed into cellulose and the coated paper exhibits a 20% higher tensile strength than uncoated paper.